Yueqing auto combination switch: How to see the circuit diagram? How to see the car circuit diagram _ Car circuit schematic reading method
Abstract：Yueqing automobile combination switch, because the production method of car circuit diagrams, symbol signs, text signs, technical standards are not the same.
Yueqing automobile combination switch, because the production method of car circuit diagrams, symbol signs, text signs, technical standards are not the same. Different car manufacturers, car circuit diagram drawing method is very different. Even the same country is not the same company car circuit diagram of the way to indicate there are big differences, which brings a lot of trouble to read the diagram, so. It is very important to grasp the fundamental way of reading the circuit diagram of the car.
First, understand the general rules of car circuit diagram
1. The wire from the power supply part to the fuse or switch of each electrical appliance is the common front of the electrical equipment. It is usually drawn on the upper part of the circuit diagram in the circuit schematic.
2. The circuit diagram of standard drawing, the contact of the switch is located at zero position or static. That is, the switch is off or the relay coil is not powered on, and the conduction and cutoff of components with switching characteristics such as transistors and thyristors depend on the specific situation.
3. The car circuit is characterized by dual power supply, single wire system, the electrical appliances are in parallel with each other, and the relay and switch are in series in the circuit.
4. Most electrical equipment is protected by the fuse through the fuse.
5. The vehicle circuit is divided into several independent circuit systems according to function and operating principle. This can solve the huge clutter of vehicle circuits, analysis of difficult problems. Nowadays, car circuits are usually made according to various circuit systems, such as power supply system, starting system, ignition system, lighting system, signal system, etc., these unit circuits have their own characteristics, catch the characteristics of the structure and principle of each unit circuit, and understand the vehicle circuit is simple.
2. Read the circle notes carefully
Carefully read the diagram notes, understand the name of the circuit diagram, technical specifications, clear the meaning of graphic symbols, establish a one-to-one correspondence between components and graphic symbols, so as to quickly and accurately identify the diagram.
First, understand the general rules of car circuit diagram
1. The wire from the power supply part to the fuse or switch of each electrical appliance is the common front of the electrical equipment. It is usually drawn on the upper part of the circuit diagram in the circuit schematic.
2. The circuit diagram of standard drawing, the contact of the switch is located at zero position or static. That is, the switch is off or the relay coil is not powered on, and the conduction and cutoff of components with switching characteristics such as transistors and thyristors depend on the specific situation.
3. The car circuit is characterized by dual power supply, single wire system, the electrical appliances are in parallel with each other, and the relay and switch are in series in the circuit.
4. Most electrical equipment is protected by the fuse through the fuse.
5. The vehicle circuit is divided into several independent circuit systems according to function and operating principle. This can solve the huge clutter of vehicle circuits, analysis of difficult problems. Nowadays, car circuits are usually made according to various circuit systems, such as power supply system, starting system, ignition system, lighting system, signal system, etc., these unit circuits have their own characteristics, catch the characteristics of the structure and principle of each unit circuit, and understand the vehicle circuit is simple.
2. Read the circle notes carefully
Carefully read the diagram notes, understand the name of the circuit diagram, technical specifications, clear the meaning of graphic symbols, establish a one-to-one correspondence between components and graphic symbols, so as to quickly and accurately identify the diagram.
