low voltage trunking under carbody

Automobile low-voltage wiring harness classification:

Power Cords: Used to carry power to various parts of the car, such as the engine, battery, and other electrical equipment.

2. Signal line: used to transmit control signals and data, such as sensor signals, instrument panel signals and audio signals.

3. Ground wire: used to connect the negative pole of the circuit to ensure normal operation of the circuit.

4. Plastic ducting: Used to protect electrical wires from wear, moisture, dust and other contaminants.

5. Insulation material: used to wrap wires to prevent short circuits or other electrical faults between wires.

6. Metal connector: used to connect wires and equipment.

7. Fuse: used to protect circuits from current overload.

8. Other accessories: such as terminals, sleeves, fixings and labels, etc., used to maintain and identify the wire harness.

Electrical principles of automotive low-voltage wiring harness: Automobile low-voltage wiring harness refers to a set of wires and connectors that connect various electronic systems of the vehicle. Its electrical principles mainly include the following aspects:

1. Power supply system: The power supply system of a car is composed of a battery and a generator. The battery provides starting current and auxiliary power, and the generator is responsible for charging and maintaining voltage stability of the power system. The wires in a low-voltage wiring harness carry power from the power system to various components.

2. Ignition system: The ignition system includes ignition switch, ignition coil, spark plug and other components. Its function is to convert the electrical energy provided by the power system into high-voltage current to ignite the gasoline engine. The wires in the low-voltage harness carry signals from the ignition system to the ignition coil and spark plugs.

3. Lighting system: The lighting system includes front and rear headlights, fog lights, width lights, brake lights and other components. Its function is to provide lighting and warning at night or in bad weather. Wires in the low-voltage harness carry power from the power system to individual lighting components and are controlled by light switches.

4. Sensor system: The sensor system of the car includes water temperature sensor, air flow sensor, oxygen sensor and other components. Its function is to sense the working status of each part of the car, thereby controlling the operation of the vehicle. Wires in the low-voltage wiring harness transmit signals from the sensor system to the vehicle control unit for data processing and control.

5. Auxiliary equipment system: The auxiliary equipment system includes air conditioning, audio, navigation, airbags and other components. Its function is to provide comfort, entertainment and safety. The wires in the low-voltage wiring harness transmit the electrical energy provided by the power supply system to various auxiliary equipment and are controlled by switches and control units.

Functions and roles: 1. Transfer electrical energy: The wires in the low-voltage wiring harness are responsible for transferring the electrical energy provided by the power system to various electronic devices and sensors in the car to support the normal operation of these devices and sensors.

2. Transmitting signals: The wires in the low-voltage wiring harness are also responsible for transmitting signals from the sensor system, ignition system signals, light switch signals, etc. to the vehicle control unit, so that the control unit can perform data processing and vehicle control based on these signals.

3. Management of wire harnesses: Low-voltage wire harnesses can also manage various wires and connectors in the automotive electrical system to avoid problems such as wire confusion or wire damage.

4. Improve reliability: The design and manufacturing of wires and connectors in low-voltage wiring harnesses can enable them to withstand adverse factors such as vibration, temperature changes, and humid environments during vehicle dri

thereby improving the reliability of the automotive electrical system.

5. Convenient maintenance: The design and layout of the low-voltage wiring harness can make it easier for car maintenance personnel to check and replace wires or connectors to improve the efficiency of car maintenance.