What is the reason why automatic transmission cars and other red lights automatically turn off when

The automatic transmission will automatically turn off when the brake is stepped on, which is not a fault, but an automatic start-stop function of the engine.

The automatic engine start-stop function is to automatically turn off the engine when the vehicle is temporarily stopped during driving (such as waiting for a red light). When it's time to move on, the system automatically restarts the engine.

The automatic engine start-stop system is the most rapidly developing automotive environmental protection technology in recent years, and it is suitable for stop-and-go urban road conditions. It is expected that by 2012, 50% of new vehicles on the market in Europe will be equipped with a start-stop system. According to reports, this system can achieve 15% fuel saving capacity under urban working conditions.

In order for users to use it with peace of mind, he has a lot to explain about this system. For example: 1. The engine will not start when the temperature is insufficient, which avoids the damage to the engine when the engine is cold.

2. The battery voltage is not completely sufficient when it is not started, which ensures that it can be completed in one go when starting again, and will not affect the engine a little bit when starting due to insufficient voltage.

It is the automatic start-stop function of the engine of the vehicle, and this kind of car generally has a ""autohold" button, which can turn off the automatic start-stop function, or the engine will not automatically turn off if the brake is not pressed to the end. In general, the engine technology is very mature now, and the automatic start and stop will not affect the engine life, but if you need to start and stop frequently in congested roads, it is recommended to temporarily turn off the function. Thank you.

The belt does not have a start-stop function, if it is belt, it is normal. If you don't have it, you need to clean the throttle.

What model are you, does the car have a start-stop function, it is recommended that the city is closed!

It is the Trumpchi GS5 that turns off as soon as it stops and steps on the foot brake

Hello friend, it should be the self-start-stop system involved.

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Answer: If the automatic car steps on the brakes at low speed, it stalls, this is the throttle is dirty, and there is also a stuck phenomenon, you need to clean the throttle, you need to match after cleaning the throttle, and the question throttle has been washed.

Asking questions is learning.

I made it with a computer.

Answer: If this will happen in the future. Then you need to use the computer to detect the data stream of this screenshot, just look at the data of the throttle when you apply the brake to see if there is any abnormal phenomenon. If there is a problem with the most basic data, it is that there is a failure and we need to replace it.

The question was washed yesterday, and today the red light was turned on and the engine went out again, and the answer asked him to check the throttle again, and use the computer to check the data of the throttle to see if there is a problem, if there is a problem with the data of the throttle, it is caused by a problem in the throttle itself, and the throttle needs to be replaced.

Let him check the throttle again, use the computer to check the data of the throttle, and see if there is a problem, if there is a problem with the data of the throttle, it is caused by a problem in the throttle itself, and the throttle needs to be replaced.

Question: Isn't that a throttle?

Answer: If there is no problem with the throttle, then this situation is that the gearbox needs to be checked, and it is possible that there is a problem with the hydraulic transmission in the gearbox, and it cannot be disconnected when the brake is pressed, and the output power of this engine is this. It can also cause stalling.

Summary. Judging from the ** you photographed, your vehicle does not have an automatic start and stop, and it does not have an automatic start and stop. When waiting for the traffic light, there is a sudden automatic shutdown, then this situation must be problematic, you need to check the throttle to see if it is stuck, you need to check the engine's speed sensor, to see if there is a problem, you need to check the engine's control computer, including the connected wiring, and you need to check this anti-theft system to see if there is a fault.

What is the reason why a car with automatic transmission suddenly shuts off when it stops at a red light?

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

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When waiting for the traffic light, there is a sudden automatic shutdown, in this case, it means that if your car is equipped with this automatic start-stop function, it will suddenly turn off when waiting for the traffic light, which is a normal phenomenon. It means that it can't work normally for a few days, and then when you step on the accelerator at this start, the engine will start automatically.

X-Trail does not have an automatic start-stop function.

Judging from the ** you photographed, your vehicle does not have an automatic start and stop, and it does not have an automatic start and stop. When waiting for the traffic light, there is a sudden automatic shutdown, then this situation must be problematic, you need to check the throttle to see if it is stuck, you need to check the engine's speed sensor, to see if there is a problem, you need to check the engine's control computer, including the connected wiring, and you need to check this anti-theft system to see if there is a fault.

After the automatic flame-out, you can try to see if it can be started, if it can be started normally, then there is no big problem, run for a period of time and then observe it, if it does not appear then it is used normally, if it cannot be started, then the specific words need to be detected by the computer, or you can disconnect the negative pole of the battery, reconnect it after a minute and try again. If it still doesn't work, then you need to use computer testing to deal with maintenance according to the fault of computer detection.

If you don't step on the brake, you can't start, you can try it, don't step on the brake and press the one-button start button, it will only enter the power-on state, the dashboard, the large screen are lit up, but the engine does not work, when you step on the brake and then press the start button, it will run. The key to start the car, starting the car not only needs to step on the brakes, gear.

It also cannot be located in the drive gear.

d r) Clear. If you don't press the brakes, and the gear is not in P or N, the engine will not respond to your start request, and pressing the start button can only enter the ACC fully energized state.

Brake, the gear is not on the N gear, P gear, and the ignition can't be hit. Whether you are used to it or not, it is mandatory for us to apply the brakes. Why do manufacturers do this?

Because this is a must-do, in order to be afraid that some people will not do it, he adds some mandatory settings. Hang in R or D gear.

Although the car is not set to brake, but because the engine power is output to the wheels after being put into R or D gear, the car will move around, and the brakes should be applied for safety.

You have to apply the brakes, otherwise the car will not respond and will not be able to start. For example, the Hyundai Tucson.

With a one-button start function, if you don't step on the brake, the car will not start, only when you step on the brake, the gear can be in P gear or N gear to start. Transmission.

There is no power transmission, the engine load is low, and the engine is a little easier to start. And if in the case of D gear or R gear, after the vehicle starts, there is a sudden forward or backward string of the excitation mold situation, for the owner, it is not conducive to driving safety.

Press to turn on and release. The control unit can only obtain the on-off or off-2 state of the switch, and the vehicle needs to use this switch to realize the ignition and start two functions, so the control unit distinguishes whether it needs to be ignited or started by the braking signal. Otherwise, there may be a situation where the transmission is notched, which is not conducive to driving.

The third situation is that when switching between the gears of P, R, and D, it is necessary to step on the brakes, which is for the sake of safety, so as to prevent the wrong gear from being hung in the process of moving forward.

Yes, you need to apply the brakes. Apply the brakes first, then shift to P, then pull up the handbrake, turn off the engine, and then lift the brakes.

The brakes should not be applied, the brakes are incorrect operations and should be re-applied. Applying the brakes is not necessary.

Automatic transmission vehicles do not need to step on the brakes when they are in the car, they only need to hang the gear in P gear and pull up the handbrake.

Reasons for the sudden stalling of the car while driving:

1. Circuit fault;

2. Flameout caused by short circuit of low-voltage line: intermittent flameout;

3. Device failure: it can start at first, turn off after a while, and then start again, and then turn off again;

4. Oil circuit failure; The gasoline pump was damaged, the oil line was ruptured, the carburetor inlet was clogged, and the fuel tank ran out of oil.

Automatic Transmission Automatic Principle:The power of the engine is transmitted through the gearbox, which is also a key indicator of fuel consumption, and in general automatic transmissions.

The fuel consumption is more than 10% higher than that of manual transmission. It doesn't matter if it's manual or automatic.

The more gears, the more fuel-efficient.

Automatic transmission, utilizing planetary gears.

The mechanism shifts gears, and it can automatically change or forward speed according to the degree of accelerator pedal and vehicle speed changes. The driver only needs to control the speed of the car by controlling the accelerator pedal.

Three-channel ABS is to control the two front wheels independently, and the two rear wheels are controlled together according to the principle of low selection (that is, the two wheels are controlled by one channel to ensure that the wheels with less adhesion are not locked up), also known as mixed control.

The above content reference: Encyclopedia - automatic transmission.

I think your car should have an automatic start-stop function, when you step on the brakes and stop, the engine will turn off, and as soon as you step on the accelerator, it will start, this is the start-stop function.

Check whether the engine idle speed is stable, and check whether the transmission locks the clutch properly.

Automatic transmission models: automatic transmission models will not easily stall, while manual transmission models may often stall due to low driving level. Lai Yan headlines.

However, it is not excluded that automatic transmission cars will not stall, and the main reason is that the engine stalls due to carbon accumulation due to the use of inferior fuel (many gas stations sell impure oil for profiteering). Strip Lai Piercing Head.

2. In addition, the reason for the stalling of the new car (automatic transmission) is mainly caused by the lack of skillful driving skills, and another possibility is the problem of the car engine or the oil circuit, but for the new car, the problem of the engine itself is less likely, and most of the reason is the problem of the oil circuit. Toutoutiaolai.

3. Finally, for the old model, the reason for the shutdown is not skilled enough in addition to the driving skills, that is, the use of substandard oil to make the engine carbon collection and other causes of the flame-off vehicle is not faulty, which is an auxiliary function of the car (automatic engine stop system), after the system is enabled, when the vehicle is temporarily braked and stopped during the driving process (such as waiting for a red light), the automatic engine shutdown operation has achieved the purpose of saving fuel. When it's time to move on, the system automatically restarts the engine, presses the accelerator and continues driving. If you find this function troublesome and cause the engine to turn off and start the cycle operation, you can turn it off.

This is because the car is equipped with an automatic start-stop system, and the vehicle will stop when the brake pedal is pressed when the light is red.

Many cars are now equipped with automatic start-stop systems, which save fuel and reduce emissions. Cars equipped with automatic start-stop systems have a switch through which the automatic start-stop function can be turned off.

If the automatic start-stop function is turned on, the engine will automatically turn off when the brake pedal is pressed at a red light, and the engine will automatically start again when the brake pedal is lifted. The control logic of some cars is different.

Some cars have an auto hold function, and after pressing the brake pedal and turning off, you can remove your foot from the brake pedal at this time, so that the car will not roll. After the red light turns green, the car engine will automatically start and move forward when you press the accelerator pedal, which is very convenient and frees the driver's right foot when waiting for the red light.

Cars equipped with automatic start-stop systems have an indicator light on the instrument panel, which will turn yellow if the general automatic start-stop system fails or cannot be used. Most of the reasons why the automatic start-stop system does not work are because the battery level is too low. Continue driving for a while, let the generator charge the battery, and you can continue to use it.