Development Opportunities of Chinese Automotive Electronics Enterprises in 2010
Now when people drive a car, they will find a lot of additions such as: fuel consumption display, ABS, ASR, EBA, ESP, airbags, side air curtains, temperature and humidity control in the car, CD / DVD player, GPS navigator, electric doors and windows , Electric rearview mirrors, electric seat memory adjustment, LED lights, adaptive cruise, and many other car electronic products that were only used in military and aviation before, and the price is only civilian consumer level. Electronic products currently account for 23% -30% of the total vehicle cost, and 50% -60% of high-end luxury cars. In the future, the development of automobiles will be driven more by automotive electronics technology, and people may feel like driving a complex electronic device while driving a car.
However, since a global financial crisis last year caused the recession of the entire automobile industry, many vehicle manufacturers have also put forward requirements to further reduce the cost of automotive electronics suppliers. The automotive electronics industry has grown rapidly from previous years to a period of huge adjustment pressure.
Strengthen cooperation between local research institutions
Optimistically, the above severe situation also means opportunities for domestic independent brand electronics manufacturers. At present, China's automotive electronics field is at a critical stage of improving its independent research and development capabilities. Electronic manufacturers should use this opportunity to continuously increase the depth and breadth of cooperation with domestic universities and research institutes that already have high research and development capabilities in automotive electronics technology. , And pay attention to more cooperation and exchanges with peers.
At present, Tsinghua University, Tongji University, Shanghai Jiaotong University, Beijing Institute of Technology, Beijing University of Aeronautics and Astronautics and other universities have achieved outstanding achievements in engine management, chassis, body electronic control, network bus control, vehicle intelligent technology, hybrid / electric vehicle technology, etc. A very high-value application in the market.
Research institutes at all levels, including the National Engineering Laboratory, are also focusing on the development of some key technologies: engines, automatic transmissions and batteries; core actuators in various electronic control systems, such as fuel injectors, solenoid valves, VVT, Clutches, hydraulic valves, etc. And power and electric drive systems, chassis and safety systems, body and network control systems.
The development of complete vehicles is based on market demand, product target customer positioning, relevant laws and regulations, prices, and other factors to determine product design and development plans, product technical specifications and other design materials. Automotive electronics suppliers conduct structural design and functional definition of electronic systems according to the technical indicators of vehicle design and development, and finally form the technical specifications of electronic systems and subsystems. After being developed, tested and tested by various automotive electronic component suppliers, they are handed over to the vehicle manufacturers for production.
When OEMs choose to develop electronic products simultaneously, they must ensure that their suppliers have technical reserves and previously successful products. For vehicle development, the three parties, vehicle manufacturers, design companies and supporting companies, jointly improve the functional requirements, coordinate with known products, development capabilities, time period and cost, and determine to develop supporting products simultaneously.
Therefore, in establishing and improving the independent development system, we must pay attention to the following aspects: first, cultivate a high-quality technical development team; secondly; establish a complete product quality management system with high-reliability products; third, establish a complete Software and hardware development platform, standardized development management process, and test equipment and methods; fourth, often participate in high-level international technical forums and technical seminars, and actively establish contacts with international manufacturers and various standards organizations, familiar with their various Advanced standards and systems, pay close attention to the development of the international market, continue to carry out advanced research and development of products, and form a trapezoidal coherent R & D mechanism for current and future generations of technology. Fifth, actively contact vehicle manufacturers at home and abroad, and strive to find matching opportunities with their projects to accumulate valuable engineering experience.
Therefore, the development of domestic independent brand automotive electronics manufacturers must be supported by vehicle manufacturers, and the planning, design and development of automobile electronic products should be carried out under the development framework system of automobile manufacturers. Through product development, a development management system, technical team and market-competitive products that meet the development requirements of vehicle manufacturers are formed. At this stage, it is still more promising to obtain orders from domestic independent vehicle manufacturers. However, due to their fierce competition with foreign companies, the quality of the vehicle is under great pressure, so the product quality of electronic manufacturers must be very good. Cherish the opportunity, cooperate seriously and honestly.
In addition, the automotive electronics field has high profits, high technology content, and large market development space. It may attract many electronic manufacturers to enter. For new entrants, sufficient funds, development time, and patience should be prepared to obtain approval from vehicle manufacturers.
For domestic independent brand automotive electronics manufacturers, it is currently more suitable for the development of the following technical products: 1. Power control field, throttle / direct injection engine, intelligent turbocharger, electronic valve drive, automatic transmission system, hybrid power system Wait. 2. In terms of energy efficiency and management, braking energy conversion, thermal energy conversion, electric fuel pumps, LED lights, etc. 3. Chassis electronic control: Electronic steering assist system (EPS), tire pressure monitoring system (TPMS), etc. 4. Body control: electric rearview mirror control, electric seat memory adjustment system, wiper control, electric door and window control, automatic air conditioning, digital instrument panel, etc. 5. Infotainment system: GPS navigator, etc. 6. Network bus control: CAN / LIN communication protocol, controller, transceiver, etc. 7. Hybrid and electric vehicles: drive motor control, power battery management system (BPMS), multi-energy management system, DC / DC module, etc.
The following is a detailed introduction of future automotive electronics technology with more development prospects.
1.FlexRay bus
Today, transmission systems, bodywork, chassis, driver assistance systems, and active / passive safety systems are all controlled by electronic systems. As the system becomes more and more complex, the vehicle network must not only provide faster data transmission, but also improve the deterministic and fault-tolerant communication connection. Therefore, more sophisticated control methods than CAN and LIN buses are needed. Adopting FlexRay will soon become an indispensable part of ensuring safety and performance, and eventually become the primary communication channel for all safety and driving functions. Furthermore, the manufacturing cost is reduced and the reliability of the car is greatly improved. Compared with the 1 Mbps bandwidth of the CAN bus, FlexRay has reached 10 Mbps. This technology can realize X-by-wire control, which greatly improves the performance of the car.
To successfully implement the FlexRay protocol on a chip, you need to have a very deep understanding of the systems it controls and the applications and environments that use them. In addition, FlexRay has very high tolerance requirements and must be suitable for the network topology of linear nodes, passive stars, active stars, and combinations of the above. Therefore, the design of FlexRay control chips and transceiver chips is quite complex and precise .
The complexity of FlexRay prevents chip companies from participating in the competition by simply integrating the new IP core on the original chip. They need to analyze the solution to the problem from a holistic perspective. To achieve this goal, long-term investment in standards development is required, a rigorous real-world environment simulation plan needs to be developed, and successful experience in the field of previous-generation automotive electronics technology is also required.
2. GaN device
In order to reduce the cost of hybrid electric and electric vehicles, the cooling system needs to be optimized. GaN devices have the characteristics of high voltage resistance, high temperature resistance, high current density, fast switching speed, small on-resistance, etc., which are very suitable for power circuits and motor drive circuits of hybrid electric and electric vehicles. Relevant international manufacturers are developing, and domestic developers should pay close attention to this technology.
3. MEMS technology
In recent years, MEMS technology has developed rapidly at home and abroad, and the demand for MEMS in automotive electronics is also increasing, such as acceleration sensors in airbags, yaw rate sensors (YawRateSensor), brake system pressure sensors, engine intake manifold Tube pressure sensors, dual manifold pressure sensors for suspension systems, and tire pressure monitoring systems (TPMS) are all used.
4.TPMS technology
TPMS includes direct type and indirect type. Indirect type TPMS has low cost and insufficient accuracy, while direct type is opposite. The direct TPMS installs the sensor and the RF transmitter chip near the tire valve. When the tire pressure is too high, too low, fast or slow air leakage, and the tire temperature changes abnormally, the car wireless receiver is alerted in time to effectively prevent Flat tire. Whether the car is running or parked, tire pressure can be monitored at any time, including spare tires.
In order to enhance driving safety, the United States has enacted legislation to force newly produced vehicles to use the TPMS system. Geely ’s Li Shufu put forward the proposal to recommend the introduction of mandatory standards for tire pressure monitoring and flat tire safety at the two sessions in 2009. If passed, it will be a boon to the driving safety of the majority of drivers.
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