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List of contents of this article:

• 1,Casino Plus free 100Automotive Start System Circuit Diagram (Reading)
• 2, Readification method of automobile circuit diagram
• 3, car ignition switch circuit diagram
• 4, What is a car circuit diagram?
• 5, Composition and working principle of automobile ignition system

Automotive start-up system circuit diagram (readable)

Whether the start switch is turned off. ( 2) For vehicles equipped with automatic transmission, whether the gear switch of the automatic transmission is in the "P" or "N" position 3 (3) Whether the engine is running. C. If it is running, the starter is not allowed to work to protect the starter and the engine. ( 4) Can the anti-theft system start normally?

Electrical the whole vehicleThe road is divided into several independent circuit systems according to its function and working principle, which can solve the problem that the whole vehicle circuit is large, complex and difficult to analyze.

The following figure is the circuit diagram of the electronically controlled gasoline injection ignition system of the Santana 2000GSi automobile engine provided by the automobile manufacturer, which is a circuit wiring diagram close to the electrical schematic diagram.

Key points for reading the circuit diagram of the whole vehicle (1) Decompose the circuit diagram of the whole vehicle. ( 2) Read the notes carefully. ( 3) Be familiar with the wiring and color markings of the line. ( 4) Be familiar with the function of the control. ( 5) Remember the circuit principle and the iron polarity. ( 6) Understand the working status of the relay.

The reading method of automobile circuit diagrams is as follows: understand the meaning of circuit diagram symbols and lines. Symbols and lines in the automobile circuit diagramTypes need to be familiar, such as battery symbols, voltmeter symbols, switch symbols, fuse symbols, etc. Analyze the structure of the whole circuit diagram.

According to the basic characteristics of the automobile circuit, the following points should be clarified when reading the diagram and troubleshooting: the automobile electrical system adopts a single-wire connection. In the automotive power supply, the armature terminal of the generator is connected to the positive pole of the battery through the wire.

Reading method of automobile circuit diagram

1. The wire from the power supply part to various electrical appliances, fuses or switches is the common fire line of electrical equipment, which is generally drawn in the upper part of the circuit diagram in the circuit diagram.

2. Analyze according to the flow of the circuit. Guide the target from the power supply, and conduct circuit analysis according to the flow of the circuit.For example, first observe whether the whole circuit is energized and whether there is a normal output of voltage, and ensure that the path from the power supply to the receiving end is continuous.

3. Follow the current direction from the negative pole to the electrical appliance, and then to the positive pole of the battery. The method of selecting and organizing a path or a combination of two paths is good at simplifying complex system circuits, which is conducive to quickly organizing the circuit structure. Automobile circuit diagram identification steps: Take the Volkswagen/Audi circuit diagram structure that is familiar with the circuit diagram structure and component layout as an example.

Automotive ignition switch circuit diagram

Ignition switch circuit wiring diagram Ignition switch is in position 0: ignition switch Turn off, lock the steering wheel of the car, with anti-theft function. At this time, the power bus 30 is connected to the P terminal, and the parking light can be turned on by operating the parking light switch, regardless of whether the ignition switch is unplugged or not.

The wiring diagram is as follows: the positive pole of the battery is connected to the thickest wire on the motor, and the negative pole is connected to the iron. There are two connecting columns on the motor, one is a very small and a very small main wire connected to the positive pole of the battery, one is connected to the ignition switch, and the small catch is connected to the starting position on the ignition switch.

The control device of the car starter includes electromagnetic switch, starter relay and ignition start switch lamp parts, among which the electromagnetic starter is made together. Structural characteristics of electromagnetic switch The electromagnetic switch is mainly composed of two parts: the electromagnetic mechanism and the motor switch.

Start gear: Start gear, when the key is turned to this gear, the circuit of the starter is cONnected, which will drive the engine to start, that is, the proverb "ignition". You can hear the obvious engine start-up sound, and it will automatically return to the normal state after starting, that is, hang the gear.

What is a car circuit diagram?

The circuit diagram of the automobile is the structural schematic diagram of the power system on the automobile. It uses special symbols of electronic technology,It shows the connection and distribution of electrical equipment such as power supplies, signal lights, audio, air conditioners, remote control locks, electric windows, etc. on the car, as well as switches, fuses, relays, etc.

Definition: A circuit diagram formed by connecting the actual position of automobile electrical appliances on the car one by one from the power supply to the switch to the iron. Features: The shape and installation position of the equipment are consistent with the actual situation, which is convenient for the production of wire harness. In the circuit diagram, the wiring harness is dense and crisscrossed, and it is inconvenient to read and find and analyze faults.

Car circuit diagram is one of the main bases for car maintenance, troubleshooting and modification. The automobile circuit diagram is a diagram of the automobile electronic control system, which is used to illustrate the electrical layout of the vehicle, the connection of electrical components and their interrelationships, as well as the working principle and control methods of various circuit systems.

The so-called automobile circuit diagram is a graph that connects the power supply of the automobile and various electrical equipment according to their respective circuit connections through switches, wires, fuse and other power distribution equipment to form a complete circuit, and is represented in the form of specific symbols.

Composition and working principle of automobile ignition system

Power supply: It is generally composed of a battery and a generator, mainly to provide the required electricity for the ignition system. Sensor: It is used to detect various operating parameters of the engine and provide the signals required for ignition control for the ECU. ECU: It is the center of the electronically controlled ignition system.

Ignition system consists of: power supply (battery or generator), ignition coil, distributor, spark plug, ignition switch and control circuit.Working principle: Turn on the ignition switch, and the engine will start running. During the operation of the engine, the cam of the breaker keeps rotating, so that the contacts of the breaker keep opening and closing.

The automobile ignition system is composed of a battery, a generator, a distributor, an ignition coil and a spark plug. The working principle of the automobile ignition system is as follows: the working process of the mechanical ignition system is that the crankshaft drives the distributor shaft to rotate, and the cam on the distributor shaft rotates, so that the primary contact of the ignition coil is opened and closed, generating high pressure.

The function of the igniter is to turn on or disconnect the primary circuit of the ignition system according to the ignition signal input by the signal generator, so that the secondary winding of the ignition coil generates ignition high voltage. At present, there are various internal circuits of igniters used in automobiles, but the basic functions are roughly the same, and their circuits are also composed of corresponding functional circuits, as shown in Figure 5-31.

The working principle of the ignition system is that when the engine is working, the ECU determines the optimal ignition advance angle and power-on time according to the relevant programs and data stored in the memory according to the received sensor signals, and thus sends instructions to the igniter.