Merging process after segmentation of automobile wire harness

The car wiring harness is the main body of the car circuit, and there is no car circuit without the wire harness. As people's safety, comfort, economy, and emissions requirements increase, automotive wiring harnesses become more complex. At present, the form of the wire harness is basically the same whether it is a high-end luxury car or an economical ordinary car, and it is composed of wires, connectors and wrapping tape.

The main feature of the integrated pressure sensor is that it has all the execution algorithms in a single and small silicon chip. This small size allows it to be installed in automotive electronic modules. When the module is designed, it is metal-encapsulated to improve electromagnetic interference resistance. ability. However, such costs are relatively high and are not conducive to installation.

There is an internal short circuit. The wires of the internal wiring short-circuit node of the automobile harness appears in pairs or multiples. Although the root end inputs a high-level signal, the leaf end responds. However, if the matrix is used to describe the response signal, the matrix arrangement will be abnormal.

If you apply it directly to the optimization framework, you need to solve a time-varying non-diagonal equation related to the stiffness matrix, and the computational cost will be greatly increased. There are controllers for handling wire harness contact problems under the optimization framework. Although it is suitable for large step optimization, equations need to be solved to avoid sticking.

In the data transmission and reception, it is necessary to check whether the signal is correctly transmitted . The transmitting party superimposes the error detecting symbol on the last data bit and outputs it in a prescribed manner, and the receiving party analyzes the acquired data to confirm whether the received error detecting symbol is correct. The error detection symbols are used in two aspects, namely parity and cyclic redundancy check.

Providing travel route planning is an important auxiliary function of car navigation systems, including automatic route planning and manual line design. Automatic route planning is determined by the driver to determine the starting point and destination. The computer software automatically designs the optimal driving route according to requirements, including the fastest route, the simplest route, and the route with the least number of highway segments.

After the vehicle controller processes the driver's operation signal, it provides a target torque and speed to the drive motor according to the operating characteristics and safety strategy of the vehicle, forming a torque-speed double closed loop control.

The fuel supply mode of the car is electronically controlled by multi-point sequential injection. The electronically controlled gasoline injector injects gasoline directly into the intake door, mixes with the air and enters the combustion chamber. Because the working environment of the gasoline injector is quite different, after a long time of work, fouling will form at the nozzle and the needle valve. In severe cases, the nozzle will be blocked, resulting in poor gasoline injection, thus changing the mixing ratio of gasoline and air to make the engine Can't work under normal conditions.

The wiring harness assembly is easy to assemble and maintain, and the wire harness is generally manufactured in sections. In the assembly, the plurality of wire harnesses are connected through the terminal to form a complete vehicle wire harness, which is arranged on the automobile, but the segmentation of the wire harness is as small as possible; thus, the pressure drop caused by too many terminals can be avoided, and the contact failure is easily caused. Generally, it can be divided into a cab wire harness assembly and a chassis harness assembly, and the chassis harness assembly is generally divided into an engine harness assembly and a frame harness assembly.

The ring structure is to connect the car wire harness design dots into a ring shape, and the data transmission is performed in sequence. The transmitted information data is relayed to reach its necessary outlets. The data output from each network point does not conflict at the same time, and stable transmission can be maintained. However, failure of a certain network will affect the whole, so take necessary measures.