What do you mean by the start, ON, ACC and lock gear of the automobile ignition switch?

Starting gear: Starting gear. When the key is turned to this position, the starter circuit is connected, which will drive the engine to run and start. When released, the key will automatically return to the open position.

The starting gear is the engine starting gear, which will automatically return to the normal state, that is, the ON gear.

Lock stop: the lock stop is the position where the key is inserted and pulled out. At this time, except for the anti-theft system and the small lights in the car, the circuit is completely closed and the steering wheel is locked. ?

After locking the car, the key will be locked. At this time, the key door not only locked the direction, but also cut off the power supply of the whole car.

ACC gear: accessory power-on gear. When the key is turned to this position, the accessory circuit will be connected and the radio and other equipment will be available. ? The ACC state is to turn on the power of some electrical equipment of the car, such as CD and air conditioner.

Open the gear: Open the gear. When the key is turned to this position, the circuit of the whole vehicle is connected, and the system will make necessary preparations and self-inspection for starting the engine, and the key will remain in this position when the vehicle is driving normally.

During normal driving, the key is in the ON state, and all circuits of the vehicle are in the working state.

Extended data

Automobile starting system

Modern automobile engines use electric motors as starting power. The basic composition of the starting system is shown in figure 1. 1, which consists of battery, ignition switch, starting relay, starter, etc.

The function of the starting system is to convert the electric energy of the battery into mechanical energy through the starter to start the engine.

The starting switch is connected with the electromagnetic switch circuit of the starter, so that the electromagnetic switch is electrified to work. The start switch of gasoline engine is combined with the ignition switch.

The starting relay is controlled by the starting relay contact (normally open), which connects and disconnects the electromagnetic switch circuit of the starter. The starting switch only controls the coil circuit of the starting relay, thus protecting the starting switch. There are single connection (protective starting switch) and compound connection (protective starting switch and starter).

The function of the starting system is to convert the electric energy of the battery into mechanical energy through the starter to start the engine.

Baidu Encyclopedia: Automobile Starting System