What happens to the 176Z4 60 AC traction motor automatic brake?

The sudden braking of the front vehicle is not used as the basis for the division of responsibility, and whether the rear vehicle maintains a safe distance is the basis for the division of responsibility. If it can be proved that the vehicle in front deliberately braked sharply and the vehicle behind maintained a safe distance, the vehicle in front should be responsible; If the vehicle behind does not keep a safe distance and it cannot be proved that the vehicle in front braked intentionally, the vehicle behind will be fully responsible.

1.Safe distance is the distance between the vehicle behind and the vehicle in front of it in order to avoid an accidental collision with the vehicle in front. Maintaining a safe distance between vehicles is the most direct, effective, extensive and fundamental way to prevent rear-end collisions.

There is no absolute numerical concept of safety distance, it depends on the situation. Generally speaking, the faster and heavier the vehicle, the longer the interval required for the safety distance. The safe distance can also be affected by many other factors, such as weather conditions, light intensity, driver vision, braking equipment, road conditions, etc.

2.Because of the rear-end accident, the actual reason is not whether the front car brakes sharply, and the fundamental reason is that the rear car does not maintain a safe distance, the "People's Republic of China Road Traffic Safety Law Implementation Regulations" has a clear provision: when the speed exceeds 100km h, should be kept more than 100 meters from the front car safety distance, which is also the reference standard of the traffic police in the division of responsibility.

Because the computer judgment is definitely different from the human operation, you are too close to the person, and the computer is not sure whether you will hit it, but the computer will give the best choice, that is, brake. Hope!

The electric bicycle has automatic braking during normal driving, and then returns to normal, what is the reason for the factory?

brake pads (mechanical brakes); The principle of electromagnetic brake, energy consumption braking, reverse braking (electromagnetic brake) brake pad is the simplest, and it can be understood by dismantling the motor.

Electromagnetic brake: the power supply of the motor and the electromagnetic brake is synchronized, the power supply of the electromagnetic brake is drawn out from the junction box or contactor of the motor, the working principle of the electromagnetic brake: when energized, the electromagnetic force separates the brake device, the motor can rotate, and when the power fails, due to the loss of magnetic force inside, the spring closes the brake device and the motor stops.

Energy consumption braking: the so-called energy consumption braking, that is, after the motor is separated from the three-phase AC power supply, a DC voltage is added to the stator winding, that is, DC current is introduced, and the purpose of braking has been achieved by using the role of rotor induced current and static magnetic field.

Reverse braking: a method of changing the phase sequence of the stator winding of the motor while cutting off the power supply for normal operation, so that it has a tendency to reverse and produce a larger braking torque. The essence of reverse braking is to make the motor want to reverse and brake, so when the speed of the motor is close to zero, the reverse braking power supply should be cut off immediately, otherwise the motor will reverse.

In the actual control, the speed relay is used to automatically cut off the braking power supply.

1. This is because the switch of the brake line is broken, it has been disconnected, and the circuit cannot be connected. The signal source of brake power failure is formed after collecting the action of the brake switch, if the brake switch is stuck or malfunctioning, it will cause the vehicle to have power and cannot go.

2. The crux of the problem is that the brake handle cannot be completely returned to the position after being released, it is not an electronic brake at all, because it cannot be completely returned, so it will be in a state of slight braking, and there is a component in the brake handle that will cut off the power supply of the motor when braking, so the power is cut off.

3. All the switches on the car are to control the positive pole, including the brake switch, when the brake is pulled up, a positive signal passes through the tail light and the controller, forming the purpose of brake power off and brake light at the same time. The principle of the bottom level is the same as that of the high level, but it is only co-positive, and the brake switch is the negative pole of control. Whether a car is high or low depends mainly on whether the controller is high or low.

Explanation of the principle of electric vehicle brake power-off.

The crux of the problem is that the brake handle can not be completely returned to the position after being released, it is not an electronic brake at all, because it cannot be completely returned, so it will be in a state of slight braking, and there is a component in the brake handle that will cut off the power supply of the motor when braking, so the power is cut off.

What you said is not too clear, generally this kind of problem first considers the brake handle failure, the brake lever power-off switch is not in good contact, and the plug is likely to enter the water and cut off the power, because it is not on the scene. Now you can pull the brake lever plug directly to see if the situation will be solved {pay attention to whether your car has an automatic cruise function, remember the danger), if not, explain the situation clearly, I will help you solve it. Thank you!

On the other floor, what do you do when you tell people about high and low levels, and what does it have to do with this? People will lose power and it's not that the high and low levels are wrong, and then do people know what high and low levels are. Off topic.

When Lexus is running normally, it shows that the battery is out of power, and the automatic braking is because the car control system detects that the battery is out of power, and in order to prevent accidents, emergency measures are taken for safety.

If it is a problem with the front brake, it should be that the wood chips of the brake pads fall off or the spring is broken and squeezed inside, and the front axle bearing is broken, if it is out of the rear wheel, the motor locks mainly because of the controller, as you said, this situation is likely to be the rear wheel, directly from the main power lead to the headlight is no problem!

Oh, the front brake is broken, the general front brake quality of the electric car is relatively skimmed, and it is stuck in it after a long time, and the light is better for you to press the switch again to control, otherwise you don't need it, after all, it is not good to open often, although it doesn't take much to burn, you want to burn a bulb, but it is better to press a switch, after all, it doesn't cost much.

First of all, check if your motor cable is broken, if there is a place where the broken area is connected, or if you stand up the big station of the tram, you turn the lower rear wheel, and see if it is tight, if it is tight, it is a problem with the motor line or the controller.

If the rear wheel is normal, it is the brake problem of the front wheel, the headlight line is connected from the main power supply, depending on how V your headlight is, if it is 12V, you have to find the converter in that, connect it from the converter, or it will often burn the bulb.

When the speed of the vehicle is less than 30km h, the automatic braking system will use all the braking force to brake the car steadily before the collision, but at this time it is also necessary to make up for the brake, because the braking system will only actively brake for about a second, if the driver does not take the initiative to brake at this time, the vehicle will still continue to move forward; When the speed is higher than 30kmh, in order to prevent the rear end collision of the vehicle behind, the automatic braking system does not use 100% of the braking force to stop the car, but takes the active deceleration action, so that even if it hits the vehicle in front, the damage can be effectively reduced.