Automotive electronics

Release time：

2022-10-20

source：

Automotive electronics is the general term of vehicle body electronic control device and vehicle electronic control device. Vehicle body electronic control device, including engine control system, chassis control system and body electronic control system (body electronic ECUs).

The most important role of automotive electronics is to improve the safety, comfort, economy and entertainment of automobiles. The electronic control system consists of sensors, microprocessor MPUs, actuators, dozens or even hundreds of electronic components and components.

Automotive electronics are classified into two categories: one is automotive electronic control device, automotive electronic control device to cooperate with the mechanical system on the car, namely the so-called "electromechanical combination" of automotive electronic device; They include engine, chassis, and body electronic controls. For example, electronic fuel injection system, anti-lock braking control, anti-skid control, traction control, electronic control suspension, electronic control automatic transmission, electronic power steering, etc., another type of automotive electronic devices, automotive electronic devices are in the automotive environment can be used independently of the electronic devices, it and the performance of the car itself has no direct relationship. They include vehicle information system (driving computer), navigation system, car audio and TV entertainment system, vehicle communication system, Internet access equipment, etc.

In 2008, the direction of electronic technology development toward centralized integrated control development: engine management system and automatic transmission control system, integrated power train control (PCM); The braking anti-lock control system (ABS), traction control system (TCS) and drive anti-skid control system (ASR) are integrated for braking control. Through the central chassis controller, the braking, suspension, steering, power transmission and other control systems are connected through the bus. Through complex control operations, the controller coordinates the subsystems to control the vehicle driving performance to the best level, forming an integrated chassis control system (UCC).

Due to the rapid increase in the number of electronic and electrical devices on the car, in order to reduce the number and weight of the connection wire, network and bus technology has developed greatly during this period. Bus technology is to connect various automotive electronic devices into a network, through the data bus to send and receive information. Electronic devices can provide data services for other control devices in addition to their own control functions. Because of the use of network design, simplified wiring, reduce the number of electrical nodes and wire consumption, so that the assembly work more simplified, but also increased the reliability of information transmission. Through the data bus can access any electronic control device, read the fault code for fault diagnosis, making the vehicle maintenance work more simple.

First, the automobile industry is in the era of scientific and technological innovation, the traditional mechanical and electrical products have become high-tech products, the automobile industry has become high-tech equipment industry.

Two, regulations and market promote the development of automotive electronic information technology, energy, emissions, noise, safety regulations are increasingly strict, customer requirements for comfort continue to improve, promote the development of automotive electronic information technology. Our country will also implement the Euro Ⅲ emission standards, Europe will implement the Euro Ⅳ emission standards, Germany has developed a 100 km fuel consumption of a liter of cars. Seat belts, airbags, ABS and ASRs that enhance car safety have been intellectualized.

3. Microprocessors for automotive and engine systems are becoming ever larger. More and more car microprocessors, some models up to 60, and using LIN, CAN network control, automotive electronic products have accounted for 1/3 of the total cost of vehicles, software accounted for 4%, this year or two is expected to exceed 10%. IC's will also become increasingly integrated, with one IC today performing the same functions as many ics in the past. In order to adapt to the development of electronic systems, automotive power supply system will be developed from 12V to 42V.

Iv. Electronic control injection system will be popularized to improve the efficiency of power system. It can be seen that all engines have adopted electronic technology, and manufacturers are also popularizing and improving it. Electronically controlled composite spark ignition engine is widely used and advanced electronically controlled uniformly charged compression combustion engine is being studied.

Five, the rapid development of drive-by-wire or drive system, drive-by-wire steering, drive-by-wire control is stepping up research, drive-by-wire control will replace mechanical systems, automotive chassis will undergo revolutionary changes.

Sixth, ITS is rising rapidly, including automobile intelligence, highway automation and navigation system.

7. Integrated control has become the development trend of automotive electronic information technology, including power transmission system, chassis and safety system, body and anti-theft system, etc. Telemedicine system will make Bluetooth technology widely used in automobiles, and automobile intelligence will be constantly upgraded.

1. Hangzhou Hikvision Digital Technology Co., LTD

2. Zhejiang Geely Holding Group Co. LTD

3. Beijing Jingwei Hengrun Technology Co., LTD

4. Oufeiguang Group Co., LTD

5. United Automotive Electronics Co., LTD

6. Siyuan Electric Co., LTD

7. Ningbo Junsheng Electronic Co., LTD

8. Beijing Wanji Technology Co., LTD

9. Suzhou Huaxing Yuanchuang Technology Co., LTD

10. Guangzhou Daoyuan Electronic Technology Co., LTD

11. Shenzhen Daotong Technology Co., LTD

12. Shenzhen Jingwang Electronics Co., LTD