What is the wiring law of the car s starting system?

The wiring pattern of the startup system. The ignition switch directly controls the circuitry of the starter. Ignition switch, start control circuit with start protection. It plays the role of protecting the starter.

The wiring rules of the starting system are as follows:

1) The starting gear of the ignition switch directly controls the starter circuit, and the starting gear power cord is connected to the terminal S of the starter.

2) The B terminal of the starter is directly connected to the positive terminal post of the battery.

3) The negative terminal of the starter is built through the metal shell itself.

4) Starter control circuit with starting protection: when the ignition switch is in OFF gear, the circuit is disconnected. When the ignition switch is in ON mode, the vehicle's electrical system is not energized, but the starter is not working.

When the ignition switch is in the start gear, in addition to the above circuit, it is also necessary to turn on the relay circuit of the starting tanyuan machine, and the starter drives the engine to rotate.

Wiring rules of automobile starting system:

1. The ignition switch directly controls the circuit of the starter: the ignition switch directly controls the suction and pulling holding coil of the starter in the starting gear, which is mostly used in the car circuit of the starter in the following stages; The current of the magnetic switch coil of the above starter is more than 40A, and the starting relay contact is used as the switch.

2. Starter control circuit with start-up protection: when the start-up ignition switch is in 0 gear, the circuit is disconnected. The power supply line when the ignition switch is in 1st gear (not activated) is by:

Generator excitation ignition coil Instrument light up indicator. When the ignition switch is in 2 gears, in addition to connecting the above circuits, it is also necessary to turn on the starter relay circuit: battery positive pole - ammeter - ignition switch - slamming - starter relay coil - relay normally closed contact - lap iron - battery negative pole - starter drive host.

At the same time, the contact bridge turns on the ignition coil bypass contacts, the current passes through the ignition coil primary, and the additional resistor is isolated. After the engine ignition work, the ground voltage of the neutral point n of the generator (about the generator adjusts the voltage, so that the normally closed contact of the starting protection relay in the starting relay is disconnected, and the charging indicator is cut off by the iron point, and the charging indicator is extinguished, indicating that the generator is working normally. At the same time, it also cuts off the slag of the tie circuit of the starting relay coil, when the generator is working normally, even if the ignition switch is pulled to the second gear by mistake, the starter will not engage with the flywheel, so as to avoid damaging the gear ring of the Feihengsong wheel and the starter, and play a role in protecting the starter.

3. The wiring law of the silver pin of the starting system 1, the circuit of the ignition front travel switch directly controlling the starter: the ignition switch directly controls the suction and pulling holding coil of the starter in the starting gear, and is mostly used for the car circuit of the starter under the rotten spring; The current of the magnetic switch coil of the above starter is more than 40A, and the starting relay contact is used as the switch.

The wiring method of the car starter: 1. There are 3 lines when the battery comes out, one line is to go to the starter, one is to go to the junction box, and then to the ignition switch. There is a connected generator that is charged;

2. The starter is composed of an electric motor and an electromagnetic coil, and the wire from the ignition switch controls the coil and conducts with the starter. The battery wire is used when the starter is turned on;

3. The circuit is: battery positive terminal 30 terminals, ammeter ignition switch, starting relay "ignition switch" post coil, lap iron battery negative. The iron core is magnetized, attracting the contact arm to envy, and the contact arm is closed;

4. The electromagnet coil electric lift circuit is connected to the relay contact closed, and the suction coil and the coil current circuit are connected at the same time. Suction coil circuit positive ash: battery positive terminal 30 terminal starter relay "battery" post, bracket, contact, "starter" post terminal "50" suction coil starter magnetic field terminal motor magnetic field winding armature winding tie iron battery negative pole.

Millions of car purchase subsidies.

Logically, they are together, but in fact iron itself is not a metal with good conductivity, and the joints are prone to rust. Therefore, the occasions with low requirements can be grounded nearby, and the occasions with high requirements, such as some sensors, computer parts, etc., must be reliably grounded, that is, connected to a special grounding place, otherwise, because the circuit resistance is large and unreliable, it is easy to produce some additional interference and faults.

Hello 1

The power supply circuit, also known as the charging circuit, is a circuit composed of a battery, a generator, a regulator and a charging indication device, and the power distribution and circuit protection devices can also be classified into this circuit.

2.The starting circuit is a circuit composed of a starter, a starting relay, a starting switch and a starting protection circuit. It is also possible to include the device for starting and preheating under low temperature conditions and its control circuit in this circuit.

3.The ignition circuit is a circuit unique to gasoline engine vehicles. It consists of an ignition coil, a distributor, an electronic ignition controller, a spark plug and an ignition switch. The electronic ignition control system controlled by the microcomputer is generally included in the engine electronic control system.

4.The lighting and light signaling device circuit is a circuit composed of headlights, fog lights, marker lights, turn signals, brake lights, reversing lights, interior lights and related control relays and switches.

1. The starter motor used in the car has two types: direct operation type and electromagnetic control type according to its different operation methods.

2. The former is directly operated by the driver through the starting pedal and the lever mechanism, and the transmission gear pair enters the mesh; The latter is operated by the driver through the start switch, and the relay is used to control the electromagnetic switch and gear pair of the starting motor, or the electromagnetic switch and gear pair of the starting motor are directly controlled by the starting switch.

3. The whole process of the engine from stationary to working state is called the start of the engine. The series of devices required to complete the engine starting process is called an engine starting device.