A brief analysis of Jinhangbiao: Detailed explanation of the basic design of automobile wiring harness

    Shenzhen Jinhangbiao Electronics Co., Ltd.(SHENZHENKING HELMELECTRON CO., LTD.) was established in 2007. It is a national high-tech and dual-software certified enterprise, a senior member of the "China Satellite Navigation Association", an enterprise that has obtained the ISO9001 (04617Q13625ROS) quality management certification system, and is improving the IATF16949 automotive quality management system. The main business is the R&D, production and sales of Beidou satellite navigation and Internet of Things terminal application hardware, and the provision of www.BDS666.com logistics information intelligent system solutions.

So, next, the editor of Golden Navigation Electronics will talk to you:Automotive wiring harnessRelated content of detailed explanation of basic design.

1. Automotive wiring harness·Definition

The power supply and various electrical parts on the car are physically connected to the circuit through the wiring harness, which is distributed throughout the car.

If the engine is compared to the heart of a car, then the wiring harness is the neural network system of the car. It is responsible for the information transmission between various electrical parts of the vehicle.

2. Automotive wiring harness · design process

1. Determine the electrical functions of the vehicle and provide corresponding requirements.

2. Determine the electrical load requirements of the vehicle and provide relevant special requirements.

3. Draw the electrical schematic diagram and circuit schematic diagram of the vehicle.

4. Vehicle power distribution (including ground wires).

5. Determine the wire specifications, wire protection, fixation, and via hole methods.

6. Allocate the circuits contained in the protection device and determine the capacity one by one.

7. Draw a three-dimensional wiring harness layout diagram.

8. Draw a two-dimensional wiring harness diagram.

9. Confirm the size of the two-dimensional wire harness diagram with the three-dimensional wire harness layout diagram.

10. Approved and put into production.

1) The two power sources (generator and battery) equipped on the car must be connected in parallel;

2) Various electrical equipment are connected in parallel and controlled by their respective switches;

3) The ammeter must be able to detect the charging and discharging current of the battery. Therefore, whenever the battery supplies power, the current must pass through the loop formed by the ammeter and the battery.

However, there are exceptions for starter currents that consume large amounts of electricity and have short working hours, that is, the starting current does not pass through the ammeter;

4) All types of cars are equipped with fuses to prevent short circuits from burning out electrical equipment.

3. Automotive wiring harness · design points

1. Draw the electrical schematic diagram and wiring harness function diagram according to the electrical function requirements.

2. Distribute energy to each electrical subsystem and circuit according to the electrical schematic diagram, including ground wires.

3. Determine the wiring harness wiring form according to the distribution of electrical components in the electrical subsystem.

4. Determine the wire harness protection method and via protection according to the direction of the wire harness.

5. Determine the fuse or circuit breaker according to the electrical load.

6. Determine the wire diameter according to the fuse capacity.

7. Determine the color of the wire according to the function of the appliance.

8. Determine the connector of the wiring harness according to the connector of the electrical device.

The above is all the content shared by the editor of Jinhangbiao Electronics. I hope it will be helpful to everyone. Thank you for reading!