What does hold mean for cars. Technical features and purpose of the hold button on the automatic transmission

The parking brake is important and necessary structural element car. With its help, the machine is fixed in place during the parking period, and spontaneous rollback is also prevented. vehicle. The classic layout of the parking brake is mechanical, with a cable system and a control lever, but in modern cars the use of the electromechanical unit with the auto hold function is becoming more frequent. Auto hold parking brake - what is it and how does it work?

Auto Hold Brake Functions

The electromechanical automobile brake in the instructions for foreign cars is often referred to as EPB. The abbreviation is revealed as Electromechanical Parking Brake. Its functions:

fixing the car when parking;
prevention of rollback in a stationary state, as well as when starting from a slope;
emergency braking if the main braking system fails for some reason.

Vehicles equipped with an electromechanical brake are equipped with an in-car activation button for this, referred to as Auto Hold. An example of such a button:

Sometimes there is another image - the pictogram of the "handbrake" with the letter A inscribed in it:

Module device

General structure

The electromechanical brake is usually placed on rear axle. It includes:

brake mechanism;
brake drive;
and control system.

The brake mechanism is activated regular for a particular car. Some design modifications are made to the working cylinders, and an electromechanical drive is mounted on the caliper.

The wheel mechanism of the electromechanical parking brake can be depicted schematically as follows:

The number 1 indicates the piston, 2 - the electric motor, number 3 in the figure shows drive belt, and 4 - the reducer is indicated.

Reducer device:

Designations:

number 1 - the driven gear of the assembly;
number 2 - output shaft of the device;
number 3 - indicates the pulley hub;
number 4 - the pulley itself;
number 5 is a schematic representation of the engagement of the teeth of the swinging and driven gears.

The oscillating gear is an important structural element. It is mounted on the hub at some angle. This provides her with the ability to swing, and two special leashes protect the gear from full rotation in relation to the housing. When movement occurs, two teeth of this gear engage with the driven one, while, due to the difference in the number of teeth, the engagement is not complete. A turn of the pulley shifts the driven gear by only one tooth.

Belt-gear transmission connects the motor to the gearbox. The latter repeatedly reduces the speed at which the output shaft rotates, which gives the system the opportunity to develop the necessary force for the operation of the brake.

The next important element is a piston with a special screw pair, consisting of the actual brake cylinder piston (1), pressure nut (2) and spindle (3):

The rotation of the driven gear is converted into the translational stroke of the rod due to the screw pair. The rod exerts pressure on the piston, which moves the pads to rim. The generated pressure force is determined by the ECU of the electromechanical automobile brake, guided by the readings of the value of the electric current consumed by the system. The drive motor will turn off when the current reaches the programmed value.

If the machine is removed from the previously set "handbrake", the motor will rotate in the opposite direction and take the rod away, removing braking force.

auto hold

Some vehicle models are equipped with an auto hold function activated by pressing the Auto Hold key. This is an extension of the logic of the electromechanical brake: the brake pads continue to compress the discs even after the brake pedal is released.

Operating principle

Auto Hold has become standard on a number of machine models Volkswagen Group(VWTouareg, VW Tiguan, VW Passat, VW Golf families), Korean firms KIA, BMW, and some others. In its work, this system relies on the readings of many sensors:

slope analyzer on which the vehicle is located:
accelerator position and (for manual boxes) clutch pedals;
evaluation of pedal release speed;
estimate the speed of the car if the vehicle is moving.

All this is necessary for the timely inclusion and disengagement of the brake.

In general, the system works like this:

the driver applies the brakes and presses the Auto Hold button. The ECU activates the system and enters the standby state;
when the car comes to a complete stop, the system goes into active mode, and even when the brake pedal is released, the vehicle remains stationary;
if the car owner turns on the EPB, the Auto Hold module will enter the standby state.

In cars of the Volkswagen concern, AutoHold has several sub-functions:

starting assistant;
traffic assistant in Stop-n-Go mode;
auto-activation of the electromechanical brake.

Having removed the foot from the brake pedal, the driver no longer gives the command to fix the wheels with the brakes, but the pressure in the line continues to be maintained. If the ABS detects slope movement (reading tilt sensors, rolling sensors, etc.), the ECU brake system gives a command to increase the pressure until a stop occurs. Then, when the driver engages the clutch (for "mechanics") or adds gas (for "automatic"), Auto Hold will remove the braking force.

In parking mode, the system switches from hydraulic brakes to electromechanical parts 3 minutes after the start of holding the machine, when the belt is unfastened, the engine is turned off, or the doors are opened.

Other models may have different features of this mode.

Auto Hold is turned off by pressing the corresponding button again.

Working conditions

"Auto Hold" is activated when several conditions are met (they may differ for different models of cars from a certain manufacturer):

the driver's door is closed;
fastened seat belt;
the vehicle engine is running;
the Auto Hold function key on the panel is pressed.

The electric parking brake is activated when:

the function is enabled from the key;
engine ignition off;
the door on the driver's side is open;
belt unfastened.

Some makes and models of machines require autohold to be re-enabled after restarting the engine. In other situations, the function works all the time until the engine starts, for example, in the VW Golf 2.

To hold the vehicle on a slope, the system needs to build up high pressure in the brake lines. If the driver wishes to move off in such a case, the pressure must be overcome in order to start moving. The brake is released by the control unit only when the engine reaches the required power to prevent rolling.

The system does not go into automatic hold mode:

if the driver's belt is not fastened, and the door is not closed on his side;
the trunk is open;
open the hood;
the automatic transmission selector is moved to the Parking position;
the electromechanical parking brake is active.

The latter turns on on its own when:

open trunk, hood;
sensors detected parking on a slope;
the driver's door is open, the belt is not fastened;
there have been several movements of the vehicle;
the machine is stationary for 3 to 10 minutes.

Advantages of the brake with Auto Hold and disadvantages of the system

The electromechanical brake system with the optional Auto Hold extension has a number of significant advantages:

the car owner experiences less stress during the operation of the vehicle. This is especially important in urban driving, with traffic jams and frequent acceleration-stop cycles, because you no longer need to constantly keep the brakes squeezed out;
"autohold" helps to stop and start moving on slopes, the car does not roll;
support of the control unit automatically keeps the car in one place, while there is no difference why the car stopped;
the programmed mode of switching on the parking electric brake when the driver's door is opened, the belt is unfastened, the engine is turned off, provides additional safety for people;
inclusion is provided by a convenient button, replacing a bulky and uncomfortable lever;
the electric brake does not need to be adjusted during normal operation; the system turns off automatically (the situation “forgot to remove the handbrake” is excluded).

But there are also some disadvantages. Among those:

it is impossible to control the degree of brake force, which is available with a mechanical "handbrake";
if the battery is completely discharged, it is impossible to remove the car from the electric handbrake until the charge is replenished;

It is impossible not to mention, speaking of Auto Hold, that such a solution is more expensive, increasing the price of a car. Including the higher cost of repairing a failed brake unit.

Precautionary measures

If you intend to start off with active automatic hold (press the gas pedal), you need to depress the pedal carefully, gradually increasing the speed so that the starting is smooth, without jerking. It is also desirable to disable this mode when driving downhill, when reversing and parking.

If a malfunction is found, or the system does not work properly, you should contact an authorized service center so that they can carry out the appropriate diagnosis and repair of the complex electronic block.

Do not keep a vehicle equipped with this system with the parking brake on for too long. The block consumes the battery charge, and when it is completely exhausted, the car will not be removed from the “handbrake” just like that.

When service and repair work is carried out, the machine electronics must be switched to the mode after-sales service. If this is not done, the brake may be activated during work, which, in turn, will lead to damage to the vehicle and injury to people. All service operations, including the replacement of pads, should be carried out on equipment specially designed for this.

In some Volkswagen models (Tiguan, Touareg, Golf, Passat sedan, Passat Variant), an electromechanical parking brake with AUTO HOLD function is standard equipment.

Benefits of using

More safety and comfort are provided by the functional extensions of the electromechanical parking brake: "Dynamic Start Assist", "Dynamic Emergency Braking Function" and "AUTO HOLD" function.
Unintentional rollback is prevented.
Optimum brake engagement point compared to a mechanical handbrake.
Space saving inside the passenger compartment, more free space in the area of the center console (for example, for cup holders).

Operating principle

Volkswagen's electromechanical parking brake replaces the conventional handbrake with a button in the center console. There is no traditional handbrake lever.

Using two electric motors, the electromechanical parking brake engages the rear disc brakes.

This system is designed in such a way that in the event of a power failure in the on-board network, a parked car continues to be securely held.

When the parking brake is applied, the control lamps in the instrument cluster and in the key light up; the sound from the operation of the brake indicates its inclusion.

Operating modes

static mode: vehicle speed below 7 km/h;
dynamic braking: vehicle speed exceeds 7 km/h;

Additional functions

dynamic starting assistant;
dynamic emergency braking function;
AUTO HOLD function.

Dynamic start assist

Provides smooth starting of the car without rolling back when the electromechanical brake is on, even on a hill.

This feature is available if:

the driver's door is closed;
the seat belt is fastened;
the engine is running.

The vehicle must not be held down by the brake pedal (e.g. when stopped at a traffic light) if the electromechanical parking brake is activated.

Immediately after depressing the accelerator pedal, the parking brake is automatically released and the vehicle moves off.

If the driver is not wearing a seat belt, the parking brake can only be released manually by depressing the brake pedal at the same time.

Dynamic automatic braking function

If the brake pedal fails or locks up, the vehicle can be effectively braked using the dynamic emergency braking function.

Pull and hold the parking brake button and the vehicle will decelerate at about 6 m/s (which is about 60% of maximum braking).

At the same time, a sound warning signal and turn on the brake lights.

The emergency braking function is implemented at vehicle speeds above 7 km/h by increasing the hydraulic pressure in the brake system. The braking process, if necessary, is supported by the ABS/ESP function. Thanks to this, the stability of the car is maintained during braking.

When the button is released at speeds above 7 km/h or when the accelerator pedal is depressed, the emergency braking function is deactivated. After stopping the vehicle, the parking brake must be released as described for parking.

At speeds below 7 km/h, the parking brake operates in standard electromechanical mode.

How Auto Hold works

AUTO HOLD function on Volkswagen cars helps the driver when parking the car and when starting off (when moving forward or backward). The AUTO HOLD function includes the following sub-functions:

Stop-and-Go Assistant;
Starting assistant;
Automatic activation of the parking brake.

The AUTO HOLD function is an extension of the electromechanical parking brake function.

Conditions for activating the Auto Hold function

the engine is running;
the driver's door is closed;
the driver's seat belt is fastened;
the Auto Hold key is pressed.

The system works from the hydraulic block ABS/ESC.

After the vehicle is brought to a complete stop by braking, the AUTO HOLD function stores the last brake pressure.

When the driver takes their foot off the brake pedal, the brakes continue to hold the wheels by maintaining pressure in the brake system.

When the ABS wheel sensors detect that the vehicle is rolling, the brake pressure is automatically increased until the vehicle comes to a stop again (example of braking on a slope). As soon as the driver depresses the accelerator pedal again and, in the case of a manual transmission, engages the clutch, the AUTO HOLD function releases the brake again.

After three minutes of holding the vehicle, the electromechanical parking brake is activated instead of the hydraulic brakes.

The electromechanical parking brake is activated automatically after the vehicle is stopped under the following conditions:

Auto Hold function activated;
the driver's door is open;
the driver's seat belt is unfastened;
ignition off.

For reliability, when starting the engine again, it is necessary to re-activate the AUTO HOLD function using the button located to the left of the gear lever. Some models, such as Golf VII the Auto Hold function remains activated automatically when the engine is restarted.

To keep the vehicle on a slope, it is necessary to create a high brake pressure in the system. When starting off again, this pressure must first be overcome in order for the vehicle to move. The system only releases the brake when the engine has enough power to overcome the vehicle's roll. Take a test drive with the customer to demonstrate this unusual behavior of the vehicle.

Pros:

Takes the load off the driver, especially when driving with constant stops, because he no longer needs to press the brake pedal to keep the car in place;
Automatic support when stopping and starting off helps to get under way on the rise; involuntary rolling is prevented;
The AUTO HOLD function provides automatic controlled holding of the car in place, regardless of the reason why the car stopped;
The parking brake is automatically activated when the driver's door is opened, when the seat belt is unfastened, or after the ignition is switched off.

The electronic parking brake is installed on vehicles:

Golf hatchback, Golf Sportsvan, Golf Variant, Sharan, Touareg, Tiguan, Touran, Passat sedan, Passat Variant, Volkswagen CC.

Brake system

Car driving

NOTE

The situations listed below indicate a malfunction of the AUTOHOLD function. Necessary
promptly contact a service station official dealer Mazda to check the car.

The signaling device for pressing the brake pedal (red) began to flash, and at the same time

On the multifunctional information display a message appeared, and at the same time
the audible alarm sounded for about five seconds. It happened in
while the AUTOHOLD function is running or when the AUTOHOLD switch is pressed.

If the engine start switch is set to the
OFF, then standing-up will turn on automatically to provide
car parking assistance.

The AUTOHOLD function is turned off when reverse gear is engaged, if the car is on a horizontal
umbrella surface or on the rise (see illustration below).

; Driving in reverse (selector/shift lever in R

(reverse))

The car is worth

downhill

Horizontal

surface

The car is worth

on the rise

AUTO HOLD function:
enabled

AUTO HOLD function:
not working, off

Enabling the AUTOHOLD function

Press the AUTOHOLD switch. Turning on the AUTOHOLD standby indicator will
indicate that the AUTOHOLD function is enabled.

Standby indicator
AUTO HOLD functions

Brake system

Car driving

NOTE

Subject to all the conditions described below,
function standby indicator
AUTOHOLD lights up when the switch is pressed
for AUTOHOLD. The AUTOHOLD function
turns on.

The driver's door is closed.

The AUTOHOLD function is OK.

Using the AUTOHOLD function
and keeping the car in place

1. Depress the brake pedal and stop completely

those car.

2. AUTOHOLD indicator on

the instrument cluster will light up and there will be a
hold the vehicle in place.

3. Keeping the car stationary

standing is carried out even after releasing
brake pedal driver.

NOTE

If all of the following are met
conditions, the AUTOHOLD function is enabled, and
it becomes possible to keep the car.

The engine start button was
switched to the ON state (engine running
or stopped by the i-stop system).

The car is stopped.

The brake pedal is pressed.

The function enable indicator is on
AUTOHOLD.

Accelerator pedal not pressed.

The driver's seat belt is fastened.

The driver's door is closed.

The AUTOHOLD function is OK.

switched off.

Electric Parking Brake (EPB)
serviceable.

The selector lever is in any position
nii, except for R ( Reverse), or a car
stands on the descent with the selector lever, finding
in the R (Reverse) position.

Turn off the AUTOHOLD function and start
movements

When the driver performs any of the following
lenient actions in order to continue moving
the car will automatically terminate
lubrication of brake mechanisms, and an indicator
turn on the AUTOHOLD function will turn off.

The driver begins to release the clutch pedal.
The gearshift lever is not on-
runs in the neutral position.

(Cars with automatic transmission)

Accelerator pedal pressed.

The vehicle is on a hill, or
the bill stands on a horizontal surface with
selector lever in position
R (Reverse)

Brake system

Car driving

NOTE

If the driver pulls the switch while standing
electric night brake (EPB)
when the AUTOHOLD function is on,
the AUTOHOLD function will turn off, and turn on
electric parking brake
(EPB). In addition, if in these conditions
yah, the parking brake is deactivated
electric brakes (EPB), function
AUTOHOLD turns on to hold the auto-
mobile in place.

Under the following conditions, parking
Electric Brake (EPB) engages
automatically, and the AUTOHOLD function you-
turns on. The AUTOHOLD function will turn on
again when conditions are restored, pre-
marching to turn it off.

The driver's seat belt is unfastened.

The driver's door is open.

After about ten or
more than minutes after the start of the function
AUTOHOLD turns on automatically
electric parking brake (EPB).
Because the operation of the AUTOHOLD function
resumes when the parking brake is turned off.
brakes with electric drive (EPB), then
work performed by the AUTOHOLD function
the vehicle hold will also resume.

(Vehicles with manual transmission)
To move forward or
back with the vehicle on a downhill slope,
depress the clutch pedal, move the lever
shifting gears in the appropriate
position and then press the accelerator pedal
to disable the AUTOHOLD function.

Turning off the AUTOHOLD system

The car is in motion

Press the AUTOHOLD switch to turn off
value of the AUTOHOLD function (mode indicator
waiting for the AUTOHOLD function to turn off).

Car is held

Depress the brake pedal and press the switch
AUTOHOLD switch to turn off the function
AUTOHOLD (standby indicator of the function
cations AUTOHOLD, as well as the indicator on the combination
the instruments will go out).

AUTOHOLD standby indicator

Brake system

Car driving

NOTE

(Applicable to cars,
not equipped with multifunctional information
display)
If pressing the AUTOHOLD switch
occurs without depressing the brake pedal when
enabled AUTOHOLD function (indicator-
AUTOHOLD standby switch
lights up), the instrument cluster lights up
pedal pressure indicator
brakes (green), notifying the driver of
that you need to press the brake pedal.

(Green)

(Applicable to vehicles equipped with
schennyh multifunctional information
display)
If pressing the AUTOHOLD switch
carried out without depressing the brake pedal.
when the AUTOHOLD function is on
(AUTOHOLD function ON indicator
on the instrument cluster is lit), then for many
a message appears on the function display.
“Release the parking brake by pressing
brake pedal "(Depress Brake Pedal to Release
Parking Brake), notifying the driver of a non-
the need to press the brake pedal.

NOTE

In the event of any of the above,
the following conditions when the function is on
AUTOHOLD
AUTOHOLD lights up) the parking brake with
electric drive (EPB) turns on automatically
check, and the AUTOHOLD function is turned off.
More information about standing
electric night brake (EPB)
Refer to page 4-90 (“Parking Brake with
electric drive (EPB)").

Engine start switch switched
to the OFF state.

The AUTOHOLD function is defective.

Auto Hold (automatic hold system) keeps the vehicle stationary even if the brake pedal is not depressed, after the driver forces the vehicle to a complete stop by depressing the brake pedal.

1. Close the driver's door, hood and trunk lid, fasten your seat belt or depress the brake pedal, then press the Auto Hold button. The white "AUTO HOLD" indicator lights up and the system enters standby mode.

2. When the vehicle is completely stopped by the brake pedal, the color of the “AUTO HOLD” indicator changes from white to green.

3. The vehicle remains stationary even when the brake pedal is released.

4. When the EPB is turned on, the auto hold system is turned off and the indicator color changes to white.

Completion

If you depress the accelerator pedal while the shift lever is in the “R” (Reverse), “D” (Drive) or sport mode, the Auto Hold system is reset automatically and the vehicle starts moving. The indicator color changes from green to white.

CAREFULLY

When starting off (by depressing the accelerator pedal) with the automatic hold system engaged, always pay close attention to the surrounding road conditions. For a smooth start, depress the accelerator pedal slowly.

To stop the auto hold system, press the “Auto Hold” switch while depressing the brake pedal. The “AUTO HOLD” indicator will turn off.

To stop the auto hold system when the vehicle is stationary, press the “Auto Hold” switch while depressing the brake pedal.

NOTE

The auto hold system does not work under the following conditions:

- the hood is open;
- the trunk lid is open;
- the shift lever is in the "P" (Park) position;
- the electric parking brake is on;
For safety reasons, the auto hold system automatically switches to the electric parking brake mode in the following cases:
- the driver's seat belt is not fastened open door driver;
- the hood is open;
- the trunk lid is open;
- the car is stationary for more than 10 minutes;
- the car is on a steep slope;
- the vehicle has moved several times.
In these cases, to signal the automatic activation of the electric parking brake system, the control lamp brake, the “AUTO HOLD” indicator changes from green to white, a warning tone sounds and a message is displayed. Before driving, depress the brake pedal, check the traffic conditions around the vehicle, and manually release the parking brake using the EPB switch.
The yellow color of the “AUTO HOLD” indicator indicates a malfunction of the auto hold system. Have an authorized Kia dealer check the system.

CAREFULLY

Slowly depress the accelerator pedal when the vehicle starts moving.
To ensure safety, disable the Auto Hold system when driving downhill, when reversing the vehicle, or when parking the vehicle.

ATTENTION

If there is a malfunction in the driver's door, engine hood or trunk lid, open the troubleshooting system, the Auto Hold system may not work properly. Have an authorized Kia dealer check the system.

Auto Hold Brake Functions

The electromechanical automobile brake in the instructions for foreign cars is often referred to as EPB. The abbreviation is revealed as Electromechanical Parking Brake. Its functions:

fixing the car when parking;
prevention of rollback in a stationary state, as well as when starting from a slope;
emergency braking if the main braking system fails for some reason.

Vehicles equipped with an electromechanical brake are equipped with an in-car activation button for this, referred to as Auto Hold. An example of such a button:

Sometimes there is another image - the pictogram of the "handbrake" with the letter A inscribed in it:

Module device

General structure

The electromechanical brake is placed, as a rule, on the rear axle. It includes:

The brake mechanism is activated regular for a particular car. Some design modifications are made to the working cylinders, and an electromechanical drive is mounted on the caliper.

The wheel mechanism of the electromechanical parking brake can be depicted schematically as follows:

1 is the piston, 2 is the electric motor, 3 is the drive belt, and 4 is the gearbox.

Reducer device:

Designations:

number 1 - the driven gear of the assembly;
number 2 - output shaft of the device;
number 3 - indicates the pulley hub;
number 4 - the pulley itself;
number 5 is a schematic representation of the engagement of the teeth of the swinging and driven gears.

The next important element is a piston with a special screw pair, consisting of the actual brake cylinder piston (1), pressure nut (2) and spindle (3):

The rotation of the driven gear is converted into the translational stroke of the rod due to the screw pair. The rod exerts pressure on the piston, which moves the pads towards the rim. The generated pressure force is determined by the ECU of the electromechanical automobile brake, guided by the readings of the value of the electric current consumed by the system. The drive motor will turn off when the current reaches the programmed value.

If the car is removed from the previously set “handbrake”, the motor will rotate in the opposite direction and take the rod away, removing the braking force.

auto hold

Operating principle

The Auto Hold function has become standard for a number of Volkswagen car models (the VWTouareg, VW Tiguan, VW Passat, VW Golf families), the Korean company KIA, BMW, and some others. In its work, this system relies on the readings of many sensors:

slope analyzer on which the vehicle is located:
accelerator and (for manual gearboxes) clutch pedal positions;
evaluation of pedal release speed;
estimate the speed of the car if the vehicle is moving.

All this is necessary for the timely inclusion and disengagement of the brake.

In general, the system works like this:

the driver applies the brakes and presses the Auto Hold button. The ECU activates the system and enters the standby state;
when the car comes to a complete stop, the system goes into active mode, and even when the brake pedal is released, the vehicle remains stationary;
if the car owner turns on the EPB, the Auto Hold module will enter the standby state.

In cars of the Volkswagen concern, AutoHold has several sub-functions:

starting assistant;
traffic assistant in Stop-n-Go mode;
auto-activation of the electromechanical brake.

Having removed the foot from the brake pedal, the driver no longer gives the command to fix the wheels with the brakes, but the pressure in the line continues to be maintained. If the ABS detects slope movement (reading tilt sensors, rolling sensors, etc.), the brake ECU commands the pressure to increase until a stop occurs. Then, when the driver engages the clutch (for "mechanics") or adds gas (for "automatic"), Auto Hold will remove the braking force.

Other models may have different features of this mode.

Auto Hold is turned off by pressing the corresponding button again.

Working conditions

"Auto Hold" is activated when several conditions are met (they may differ for different models of cars from a certain manufacturer):

the driver's door is closed;
fastened seat belt;
the vehicle engine is running;
the Auto Hold function key on the panel is pressed.

The electric parking brake is activated when:

the function is enabled from the key;
engine ignition off;
the door on the driver's side is open;
belt unfastened.

The system does not go into automatic hold mode:

if the driver's belt is not fastened, and the door is not closed on his side;
the trunk is open;
open the hood;
the automatic transmission selector is moved to the Parking position;
the electromechanical parking brake is active.

The latter turns on on its own when:

open trunk, hood;
sensors detected parking on a slope;
the driver's door is open, the belt is not fastened;
there have been several movements of the vehicle;
the machine is stationary for 3 to 10 minutes.

Advantages of the brake with Auto Hold and disadvantages of the system

The electromechanical brake system with the optional Auto Hold extension has a number of significant advantages:

the car owner experiences less stress during the operation of the vehicle. This is especially important in urban driving, with traffic jams and frequent acceleration-stop cycles, because you no longer need to constantly keep the brakes squeezed out;
"autohold" helps to stop and start moving on slopes, the car does not roll;
support of the control unit automatically keeps the car in one place, while there is no difference why the car stopped;
the programmed mode of switching on the parking electric brake when the driver's door is opened, the belt is unfastened, the engine is turned off, provides additional safety for people;
inclusion is provided by a convenient button, replacing a bulky and uncomfortable lever;
the electric brake does not need to be adjusted during normal operation; the system turns off automatically (the situation “forgot to remove the handbrake” is excluded).

But there are also some disadvantages. Among those:

it is impossible to control the degree of brake force, which is available with a mechanical "handbrake";
if the battery is completely discharged, it is impossible to remove the car from the electric handbrake until the charge is replenished;

It is impossible not to mention, speaking of Auto Hold, that such a solution is more expensive, increasing the price of a car. Including the higher cost of repairing a failed brake unit.

Precautionary measures

If a malfunction is detected, or the system does not work properly, you should contact an authorized service center to carry out appropriate diagnostics and repair of a complex electronic unit.

When service and repair work is carried out, the machine electronics must be put into service mode. If this is not done, the brake may be activated during work, which, in turn, will lead to damage to the vehicle and injury to people. All service operations, including the replacement of pads, should be carried out on equipment specially designed for this.

motoran.ru

Technical features and purpose of the HOLD button on the automatic transmission

Having bought a car with an automatic transmission, novice motorists notice the HOLD button, but not everyone is in a hurry to try a special automatic transmission mode. This mode itself is the beginning of the movement not from the first, but immediately from the second gear. This helps to avoid slippage when starting on slippery surfaces. It would seem very functional in some situations, especially during the cold seasons, but nevertheless, the use of this button causes controversy among drivers.

If you literally translate HOLD from English, you get "fixation", "hold". This function, as it were, limits the range of speeds, limiting the inclusion of higher or lower ones. You can see the button designations in the form of a snowflake, an asterisk.

This button has its own nuances. It is located almost always near the automatic transmission, but can be found on the dashboard of some brands and individual car models. When you press the table, the speedometer will light up the corresponding inscription. It is also worth mentioning that when using the HOLD button, gasoline consumption increases, so it is recommended to disable this function during normal driving. Despite the consumption of gasoline, the function has enough pluses.

It can help you in situations such as:

downward movement. When this button is pressed, the car will decelerate and will not be able to accelerate.
overtaking another car, because at a sufficiently high speed, that is, in fourth gear, the engine speed increases sharply when HOLD is turned on and traction increases.
cold seasons and slippery roads. In this case, it is recommended to keep the HOLD button on at all times.
traffic jams. Starting right out of second gear reduces jerking in heavy traffic.
climb up the slippery road.

It should also be taken into account that turning on the HOLD button slows down the car and prevents it from accelerating to high speeds. Here, each car has its own limitations. Therefore, using this button on the track (with the exception of winter times) does not make sense and only hinders your, as well as the general movement.

novosibirsk.spec-akpp.ru

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TransmissionAutomatic transmission: HOLD button on automatic transmission. There is such a button on my 626, but what it does is not clear. I didn’t have time to check it empirically. the car is still a grid from Vlad. Is it like overdrive or something else? When this button is pressed, the box does not switch up or down from the speed at which it was at the moment it was pressed ... The HOLD button does the following. Disables the highest gear that is possible with a given position of the automatic transmission selector. Let me explain: if you go to D, then the machine will switch 1-2-3-4, if you press HOLD, then 1-2-3, similarly to S (1-2-3 and 1-2 with HOLD) and L (1 -2 and 1 c HOLD). It is very convenient to use in winter for engine braking. If HOLD flashes, it means that there is a malfunction in the box. Sometimes flashing can start for no apparent reason and without changing the operation of the box itself. This can be overcome by resetting the entire computer. Disconnecting the battery for a while (about half an hour). Now about the differences between the boxes "Europe" from "America" 626. On "Europe" there is a so-called 2-pallet box in which the automatic transmission filter can be changed (and necessary). On the "America" there is a one-pallet box, the filter in which does not change (such a design). The oil change interval is the same for both normal conditions is 60 t km, and in heavy (read our conditions) 40 tkm. Pouring better Dextron-III (normal manufacturer!!!). Fedor.AKP I have been driving for more than a year, but I can’t understand what the Power / Eco switch button does. Theoretically I know, practically I do not feel. Those. nothing changes at all. Maybe I don't understand its purpose. 1. With Power On, gear shifting occurs at more than high revs at the same pressure on the gas. If you press hard with Power Off, it works like with Power On. Make sure - gently push - should switch at 2000 rpm with power off. When the Hold key is pressed, 4th gear is disengaged, the car moves from 2nd gear (for driving on ice or in sand, to reduce the moment on the wheels). In addition, the machine "tries" to keep the current transmission as long as possible. TE increases the hysteresis. 2. I have a little different - OVERDRIVE ON / OFF modes. When turned on (ON), the gearbox changes from 4-speed to 3-speed, while the gears are slightly lengthened. Speaking of the OVERDRIVE button - according to the dictionary - mechanism in a vehicle providing a gear above top gear for economy at high speeds (a vehicle mechanism that is an overdrive to save fuel at high speeds). I bought a new "Behind the wheel" today. There is an article there about automatic transmission, where I read that the automatic transmission easily fails if the car is towed differently than with the drive wheels hung out on the tow truck. Is this really true, or is it still possible to somehow get there in tow? it is not recommended to tow a car with automatic transmission due to the fact that the oil pump does not work and there is no lubrication of the mechanisms. But manufacturers allow transportation at distances. approximately 50 km and at speeds up to 50 km/h. Repair companies recommend adding oil to the box, which will allow transportation over long distances. : Tell me, plz, maybe someone already knows where to look for automatic transmission error codes on Mazda and other cars (URL pls) At http://www.jnc.farpost.com/toytech.html see http://www.jnc .farpost.com/data/a340e.zipManual transmissionWhat oil to pour into mechanical box? 626 2.0i FS since 1991 Hatch (AlexR) Against Oleg's advice to "do not touch", I changed the oil in a specialized service station Castrol. The level was not determined (below the gear), so I decided. The local specialists looked in smart catalogs and determined the transmission Castrol 75W90 for my Mazda. But I had some kind of ATP (red) there. After that, according to my subjective feelings, gear shifting became hard. At high speeds, when switching from first to second (the heaviest timing mode), the lever moves hard and with an unpleasant sound. It looks like the synchronizer is failing. I had the same thing with old oil, but only on a cold box. Changed to ATF (Mobil). All questions have been removed. If there was ATF, then I strongly advise against pouring 70W90! In winter, synchronizers will not work on a cold box! this is what we went through. It doesn’t get so cold in Europe and 70W90 works fine for them, so Mazda oil catalogs sometimes have such recommendations. But for us in Russia - only ATP (Dexron II / III)!

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Slot machine Key Master

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Slot machine Key Master

Last games These pages show images of games and the following parameters: game - number of the game (the last game has number 0, the previous one 1.d.). MM - day and month of this game HH: MM - hours and minutes of this game BET - bet per line in this game line - number of lines on which the Key Master slot machine was bet credit - amount of credit after the end of the game WIN - amount winnings by lines and winnings in the bonus bonus.

Slot machine Key Master

The player, using the buttons, controls the pusher in the form of a key, which must fall into the "keyhole behind which the prize is located. Jackpot, then the super jackpot prize is possible. The case and placement of prizes are both.

Slot machine Key Master

Event data) * recommended ratio of minimum and maximum rates 1/10 The password can consist of five Latin letters from A to Z and is entered using the buttons: "hold 2" the previous letter of the alphabet, "hold 4" the next letter, "hold 3" go to the next ac Casino Mirror input field. average speed work counters 500 units per minute.

Slot machine Key Master

Furniture for children's centers, thematic design, entertainment center decorations, wall and floor coverings, fences. For playgrounds, fishing for children's centers, sandboxes for children's centers. MM Day and month when the event occurred HH: MM Hour and minutes when the event occurred xxxxxx Number of points corresponding to the event (if the event is IN or OUT) sssssssssssss Event name This page displays the information necessary for testing buttons, keys and switches.

The second preferences page is accessed using the "hold 1" button only when bill mode is in binary mode. Catalog archive, ticket machines, simulator machines. Booking consists of 3 main pages.

In this case, the following parameters are displayed: channel 1 Channel coefficient (1 2, 3, 5, 10, 15, 20, 25, 30, 50, 100, 150, 200, 250, 300, 500, 1000, 1500, Key Master slot machine 2000, 2500, 3000, 5000, 10000, 20000, 25000, 50000, 100000, OFF channel 2 Channel coefficient (1,. If the inscription “hopper empty” appears, then it is necessary to eliminate the malfunction of the hopper coin dispenser, or add tokens to it. On the page “1 C » game data double and super jackpot values are displayed: games number of entries into the risk input amount of winnings with which the risk was entered take amount of points added to credit after risk percent Percentage of take to input jackpot PAY total.

Connector pin assignment Master Games CON2 component side solder side video RED 1A 1B video green video blue 2A 2B video sync. In this case, all data on all test pages will be reset to zero, the data on the preferences pages will take their initial values (see.

If the message “. The event is: 1) Transferring (IN) to credit and draining (OUT) from credit points in any way: service IN charging by key “KEY IN” service OUT draining by key “KEY IN” KEY OUT draining by button “KEY OUT » remote IN charging via computer (jack POT) network remote. If this happens, then a corresponding message and the amount of the prize will appear on the screen.

In case of successful entry of the casino Leon Mirror of the password, the long book page is displayed, otherwise the inscription "password invalid!". The password is shown by Casino X Bonus Code only at the moment of its change (hereafter it is shown with asterisks). Plus significant additions, which were sorely lacking in the "big brother".

pdf, size: 610.83 kB/ How to get access to the closed pages Complete crane machines, electronic boards for crane machines, spare parts, toys. To restore the program's operability, it is necessary to: briefly turn the "long book" key to the "on" position; go with the "hold 1" button to the menu; select the preferences item with the “hold 1” button and enter it with the “hold 2” button .; select the date setting item with the “hold 3” button. In booking, the buttons of the machine perform the following functions: hold 1 next Page, Line, Page Up transition to the next page (main or additional to the menu line, one page up in the Protocol List hold 2 Enter, Change, Page Down entry to additional pages from the menu line or change.

where, bbbbbb is the name of the button, ssssss is the name of the key, then it is necessary to turn off the Key Master slot machine, eliminate the malfunction and then turn it on.

To switch the Key Master slot machine directly (without entering a password) to the indication of the long book page, you must turn the “long book” key to the “on” position.

Slot machine Key Master

The Golden Key is a prize vending and entertainment machine, an analogue of the Korean Key Master.

To go to the long book page, press the "hold 1" button. pdf, size: 699.24 kB/ Master Games Odysseus Audit-setup-play_rus Description of settings of parameters and game.

pdf, size: 849.23 kB/ Master Games MafiaBlues Audit-setup-play_eng Description of game and parameter settings. Thematic playrooms for kids, SiliSoft soft modules, autodromes, hippodromes, zoodromes. "Golden Key" vending and entertainment machine advantages: -individual setting of each cell; -the ability of the Key Master slot machine to change the settings via SMS notification; -SMS report on the operation of the machine (winning, number of banknotes - changing settings is possible only after entering the boss password ;- original sound and light accompaniment.

MM HH: MM xxxxxxx sssssssssssssssss where:. appendix A) The following numbers and parameters are displayed on the long book page: uniххххх (board number) total IN Total points received by the slot machine Key Master total OUT Total points issued by the machine KEY IN Total points received through the KEY IN key KEY OUT Total points issued via the key "KEY IN" or.

The message “hopper empty then you need to turn the “KEY IN” key and use the “hold 5” button appeared. Game machines for kids, interactive developing machines, children's rocking chairs.

3) Time of entry to the pages "short book" and "long book" 4) Time and name of the slot machine doors that were opened. If, for some reason, the machine has not dispensed the entire amount, e.g. or ssssss, Key Master switch slot machine.

The attraction itself has an attractive design and lighting from all sides. Preferences data marked with an asterisk. Preferences data check the rest of the settings.

The main pages are: short book, long book and menu. The player must add this amount to credit by pressing the "start" button.

Game statistics game data accumulated by the program during operation (3 pages) preferences settings according to which the program works (2 pages) events vulkan Net Mirror - control events with the number and time of the last appearance (1 page) last game last 100 games (may contain from 1 to 100 pages) Casino With Initial Bonus last BIG wins . Manufacturer: Komuse (Korea dimensions (WxDxH 99 x 96 x 186.

If you are interested in the article or have questions, leave a comment.

When connecting electromechanical meters, it is necessary to take into account that their work occurs in parallel with any actions of the player and operator. The following numbers and parameters are displayed on the short book page: total IN Total points received by the vending machine total OUT Total points issued by the vending machine KEY IN Total points received via the KEY IN key KEY OUT Total points issued via the KEY IN key or the PAY OUT button bill.

Data preferences and also check other settings. Instructions for maintenance of slot machines Master Games. In this case, if a password is set, you must enter it.

Maximum current - azino777 How to Play Bonus Balance 4, maximum voltage - 24 V attention!

Thanks to the built-in gSM-module, you can: quickly track the statistics on the prizes won and the filling of the bill acceptor, as well as remotely change the settings of each cell.

Air hockey, board and sports games, crane machines and prize machines, N-kids vending terminals.

This will remove the error. Last BIG wins no deposit Casino Bonus 2018 December A page similar to last games that saves games with wins over 500 bets per line. The following lines are displayed on the menu page: game statistics preferences events last games last BIG wins protocol list test These are the names of the data groups that can be viewed from the menu page.

To switch to the indication of the short book page, you need to turn the “short book” key to the “on” position, while you must be in the main game mode (if you have a win, you must take it on credit). And the game is so interesting and easy that the visitor of any Key Master slot machine will like it. hold the "hold 5" button for more than 3 seconds until this page is cleared (in this case, the game board (init machine) will be initialized).

If the machine is online. Each line may hide several pages with data, the Key Master slot machine, but they all have the name of the corresponding menu line. Protl list Key Master slot machine This page shows the events that took place with the program.

With the function of the mandatory issuance of a prize (capsule)!

Code 1 crash in Key Master slot machine early enzu; Code 2 crash at end of enzu; Code 3 did not balance the main game; Code 4 invalid values in enzu; Code 5 counter value exceeded; Code 6 the balance on the short book page did not agree; Code 7 didn't work.

To exit this page in the menu, you must simultaneously press and then release "hold 1" and "start". Soft carousel Fun Kids (4 Kids).

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What does hold mean for cars. Technical features and purpose of the hold button on the automatic transmission

Auto Hold Brake Functions

Module device

General structure

Reducer device:

auto hold

Operating principle

Working conditions

The system does not go into automatic hold mode:

Precautionary measures

Benefits of using

Operating principle

Operating modes

Additional functions

Dynamic start assist

Dynamic automatic braking function

How Auto Hold works

Conditions for activating the Auto Hold function

Pros:

The electronic parking brake is installed on vehicles:

see also:

Auto Hold Brake Functions

Module device

General structure

Reducer device:

auto hold

Operating principle

Working conditions

The system does not go into automatic hold mode:

Precautionary measures

Technical features and purpose of the HOLD button on the automatic transmission

Mazda links - virtual MazdaFaq

Slot machine Key Master