From the market development trend, the automotive electronics technology systematization, integration and integration is the inevitable direction of the three trends along the car safety, energy saving and comfort and comfort / enhance the performance Sensor of the three main lines of development. And through the three main lines of the mainstream technology is the automotive system of electronic, systematic, integrated and intelligent.
Automotive safety technology market and social needs mainly from three factors: the safety requirements of consumers, the latest safety regulations, the driver more and more distracted. 57% of consumers believe that helping them to prevent the deviation from the lane of the driver support system or lane guidance system is their purchase of cars to consider the very important factor. In order to reduce the occurrence of car accidents, many countries have developed a variety of regulations on the safety of the car to make specific requirements. Smart phones, in-car entertainment systems and navigation systems in the car so that the driver more and more distracted, improper use is likely to lead to traffic accidents. Therefore, the government regulations and user requirements determine the law of the development of the market, modern electronic technology to avoid accidents and car accidents become possible, or can greatly reduce the degree of loss of car accidents, and promote the development of security technology. Automotive safety technology can be divided into active safety system and passive safety system two categories. Active safety systems are safety technologies that can prevent accidents such as ABS / ESC, various driver assistance systems such as crash alarms, lane keeping systems, blind spot warning systems Fuel Rail Pressure Sensor and rear monitoring systems, tire pressure monitoring systems (TPMS), electric power Steering system (EPS) and body electronic safety system; passive safety system refers to the accident after the accident to avoid or reduce the level of casualties such as safety belts, airbags, rollover passenger protection system.
Automotive energy saving and emission reduction technology for traditional energy vehicles, including the engine electronic control and management systems, electronic control automatic transmission (ECAT), electric control steering system and vehicle start / stop system. For the new energy vehicles, the automotive electronic control technology is to achieve the basic technical conditions of new energy vehicles, in turn the development of new energy vehicles to the automotive electronics has brought more new opportunities, including the drive motor and drive control system, battery And battery management system (BMS), vehicle control system, thermal management system, EPS or wire steering system, brake energy recovery system.
Comfortable and convenient / enhanced system performance, ride comfort, network information and system performance improvement is also the main driving force of the automotive system electronic. Body control module (BCM): the network of automotive interior control module network integration, including doors, windows, wipers, headlights, seat control, defogging / defrosting; vehicle information system (Telematics) that car network : Car and external network connection. Telephone, GPS navigation, real-time traffic information, Internet access, remote fault diagnosis / anti-theft, entertainment, C2C communication so that the car becomes a 'mobile network terminal' of various electronic modules; intelligent navigation / intelligent transportation system (ITS): Target monitoring, scheduling and road traffic information services, vehicle-assisted navigation. The system can obtain information such fuel metering valve as weather along the way, traffic flow in front, traffic accidents, traffic jam and so on. According to the target data provided by the driver, the best route and the nearest driving route can be taken around the vehicle density. navigation.
More and more electronic control unit on the car, embedded system integration control technology, computer technology and network technology development and maturity, so that the integration of automotive electronic control system, network and intelligent become the inevitable trend of the development of automotive technology The Integrated integration and coordination of vehicle system security, fuel economy, handling stability, comfort and other properties, improve the value of the car, reduce the total cost. The two most common areas of integration are the integration of chassis and powertrain. The rapid exchange of networked data, high reliability and low cost is the requirement of automotive electronic network system, which can realize data communication, information sharing and coordination and optimization of functions between systems. Bus technology will be a variety of electronic control unit in the car, intelligent sensors, smart meters, etc., constitute the internal LAN, through the agreement to communicate with each other to achieve the sharing of information between systems. The main advantages include: greatly reducing the number of automotive wiring harness, connection points and types, improve the reliability and maintainability of the system; the use of general sensors to achieve the purpose of data sharing; improve system flexibility, that is, software can be achieved through the system function Variety.
Intelligent modern car technology is moving in a more proactive direction of intelligent development, in order to achieve 'people - car - environment' intelligent coordination. The main feature of the intelligent system is to make up for the shortcomings of the factors that make it possible to automatically and more accurately control the car even in very complex road conditions, making the car safer, more comfortable, more energy efficient and better The value and efficiency of electronic products in the vehicle has been further improved. The intelligent feature is that the system can take the initiative to help the driver to take the necessary action, embodied Temperature Sensor in the system must have three characteristics, that is, with real-time perception, decision-making ability and control the implementation of the ability. In fact, the highly responsive driver support systems (active safety systems) that are currently being developed are highly intelligent, such as lane departure prevention systems / lane keeping systems, active collision avoidance systems, adaptive Cruise control system, intelligent navigation / intelligent transportation system, intelligent driving system - unmanned vehicles, intelligent airbags and so on.
The development and competitiveness of domestic automobile electronics industry depends on the development and industrialization of domestic upstream semiconductor products and integrated modules. The chip and core components technology is the foundation and guarantee of the development of automobile electronics industry. And now the field of domestic monopoly by foreign companies, basically by imports, on the basis of the second development, in technology and cost do not have the advantage.
The core of electronic control system development and manufacturing performance, durable and reliable, high quality, low cost and can work in complex and harsh environment, the ability of automotive embedded electronic chip and PCB, is the basic control of the electronic control system Claim. Control algorithms and embedded software is the most critical part of the development of automotive electronics technology, but also the biggest technical bottlenecks, to achieve the core control functions, fault diagnosis and fault safety protection, and other systems and components of the communication. The electronic control actuator ABS Sensor is a key component of the electronic control system. Its work accuracy, performance and reliability directly determine the performance and quality of the control system. The basic requirements of the implementing agencies are high precision, fast response, high power density (small size, light weight), low noise, durable and reliable, high quality and low cost.
Sensor technology requires a high number of sensors and the number of high-precision, high reliability, high quality and low cost is the basic needs of system applications. Future sensor technology is also moving in the direction of multi-functional, integrated, intelligent and miniaturization.
The performance and cost of the electronic system network and the vehicle integrated system depend on the optimal matching of the components in the system. Integration, including the electronic control system itself or the vehicle, the integration of network communications, mechanical and electrical integration must have the technical knowledge and experience, with a deep understanding of the system knowledge, and even vehicle dynamics and related systems in-depth master. To master the above key aspects of the core technology is the development of automotive electronic control system capacity, and to achieve industrialization, manufacturing high-performance, high-quality, low-cost high-end electronic technology product target key.
Automotive electronics is faced with foreign technology and market monopoly. Although most of the technology has been developed in foreign countries is very mature, but the core technology are controlled in Europe and the United States and other ancillary business hands, and the implementation Throttle Position Sensor of technical protection and monopoly, the domestic market is almost monopolized. Lack of core technology and research and development capabilities. Domestic enterprises R \u0026 D capability is weak, lack of core technology and innovation ability, products in the low and small level of hovering. But also the lack of long-term strategic and cooperative spirit. We have developed - repeated development, research and development of technical dispersion, a serious waste of resources. Auto parts industry is not the main engine plant substantive and strategic support, the situation is not optimistic.