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China's auto electronics market and development opportunities for analysis - red diode laser module 670nm
2003 World vehicle production growth of less than 3%, of which 80% of the increment from China, China's auto electronics industry's rapid development has caused a global automotive electronics industry's attention. This overview of the Chinese automotive electronic technology and market status, the difficulties and development trend, and automotive power management devices and technology development, these elements contribute to automotive electronics design engineers, technical, marketing and sales manager, as well as automotive semiconductors China's automotive electronics suppliers to seize the opportunity to develop. Automotive electronics products into two broad categories:
1. Automotive electronic control devices, including powertrain control, chassis and body electronic control, comfort and alarm systems. 2. Car automotive electronics devices, including automotive information systems (car computer), navigation systems, car audio-visual entertainment systems, automotive communications systems, vehicle networks. China's auto electronics industry development direction and face difficulties in Currently, China's automotive electronic systems manufacturers have a certain economy of scale, they are by and or restructuring, etc., into the matching system by the depot, and will gradually enter the international market, supporting high-end cars. The development of automotive electronic equipment is the rapid development of China's auto electronics industry is one important direction.
In contrast, China's automotive electronic control systems of industrial level and R & D capability and abroad still a big gap. In the face of adverse market environment, China's scientific and technological personnel has not stalled. With the energy situation becomes increasingly tense, the China National "863" plans to actively promote electric vehicles and fuel cell vehicle research in the field of electronic control systems, automotive electronics research and industrialization focused on: 1. Information: speed tables, engine speed table and the fuel gauge will be set of the network, diagnostics, and digital display features on the integrated touch screen LCD replaced and, through the vehicle dynamic information system of "expert think tank" to achieve on-site diagnosis, road autonomous navigation, electronic maps, vehicle location dynamic display and track playback; 2. energy-saving technology: high-speed driving, when turning the steering wheel is very easy, Slow turning a corner, hit the steering wheel is very difficult, which will increase about 2% of the fuel consumption.
Newly developed electric power steering system is expected to do the opposite, so that labor-saving and safe driving, and save energy. 3. Comfort-oriented: At present, motor vehicle air-conditioning is driven by a multi-purpose machine, the temperature thanks to the driver manual control, energy problem is serious. Automatic air-conditioning systems and intelligent air-conditioning systems R & D will automatically collect vehicles inside and outside temperature, humidity, sunshine and speed and a series of signals, according to a certain mathematical model calculations, automatic adjustment at any time in order to get the best air-conditioning operation mode.
These three studies will take the lead in fuel cell vehicles on the application, and subject to conditions, the gradual conversion of traditional cars. In addition, the Chinese Ministry of Information Industry will focus on supporting the development of six automotive electronic products: a unified computing platform cars, electric controlled fuel injection system ECU, vehicle traffic monitoring and recording device, car audio and video navigation system, automotive semiconductor devices and special chip, intelligent transportation systems.
At present China's emerging automotive electronics enterprises in the industrialization of research and products, the main difficulties facing are: the requirements of the international standard system do not know enough, automobile plant and the emerging automotive electronics manufacturers to top-down, according to vehicle electronics product configuration requirements work on projects of business model is not fully established. Due to lack of demand for vehicle traction, automotive electronics manufacturers have developed their own functional prototype of the product only to the vehicle factory acceptance test, the test was sought after the supporting manufacturers, China Automotive Technology and Research Center, a senior engineer said that as the test times less and the reasons for the high cost of the product to withstand the test of time relatively short, in the stability and security difficult to meet international standards.
At the same time, due to automotive electronics and vehicle matching highly relevant, the emerging Chinese automotive electronics enterprises to scale, it is difficult out of the joint venture business model, so easily be controlled vehicle factories. A combination of these two reasons, it might hinder China's auto electronics companies launched in a short time to meet market demand for products and grow. The R & D process, the domestic production of automotive electronics components manufacturers are supporting the control of the joint venture, resulting in automotive electronics market is not supporting sound development of China's automotive electronics business development has some negative impact, there is a long procurement cycle, buying is not convenience, specifications do not meet vehicle-specific requirements more general issue, the Shanghai New Vehicle Technology Co., Ltd. on behalf of the MA Xi-ping manager, said: "The automotive electronics of high-power, high-current environment on the supporting cables and devices have high requirements, which there matching difficulties. "
On this issue, Tianjin Fujitsu Ten Electronics Co., Ltd. Liang, director of the snow, said: "In order to China's automotive electronics manufacturers to provide local matching, we have for the rapid development of China's automotive electronics has just set up a R & D center in Tianjin Fujitsu Ten Limited, aimed at in need of automotive electronics product design, assembly plant to provide services. "and Motorola Electronics Co., Ltd. Guo Luning managers believe that China's automotive electronics business to participate in the international automotive e-procurement of the General Assembly, and gradually understand the market requirements and international standards, starting from the supporting the development of China The automotive electronics industry. At present, electric power, high-voltage power safety management system, body electrical control, digital meter, low-speed bus control system, tire pressure monitoring and alarm systems for research and industrialization process, the Chinese automotive electronics enterprises have already begun to deliver.
China's "national car computing platform project" is expected to overcome the launch vehicle control, driving, information processing, intelligent transportation, sensing, the implementation of major core technologies, so as to third-generation mobile communications, high-definition digital television, satellite navigation, intelligent transportation , mobile network applications and information technology applications in the automotive electronics provide significant opportunities for development and the formation of the automotive industry and electronic information industry development pattern of interaction. As the international top-level automotive semiconductor solutions provider in China, China's automotive electronics industry is expected to accelerate development. China's major automotive electronics market and development opportunities Safety, energy saving, environmental protection, as well as intelligence and information is the future automotive trends. China's auto market in China led to rapid growth in car entertainment systems, the exponential growth in market size, market research shows that between 2003 and 2006, China's total car production in 1200-1600 should be around 10000, automotive entertainment systems, the size of the market in the 500 -- about 8 million units, mainly provides OEM support services. Vehicle used a computer as a platform to vehicle communication, navigation, audio-visual entertainment, network control, integrated multimedia information system for the integration of the areas of market trends. Survey analysis shows that China's current development prospects of the larger automotive electronics market and so as shown in Figure 2 can be seen with the vehicle driving safety and control of the relevance of small-car entertainment and navigation information systems, body electronics is China's automotive electronics market The main direction of development. 1. Car autonomous navigation systems market, the rapid development of China plans to Beijing, Tianjin, Shanghai and Guangzhou as the center outward expansion of four major cities navigation digital map coverage of space and provide navigation electronic map database, NavInfo navigation, Beijing Information Technology Co., Ltd. Sun Yuguo, general manager, said: "At present, in line with the automotive industry standards and Chinese law car autonomous navigation electronic map products have been put in Beijing, Tianjin, Shanghai and Guangzhou cities in four. "expected that by 2005, covering most parts of China navigation electronic map products will be available to meet the 2008 Beijing Olympic Games and the 2010 Shanghai World Expo will have the need for car navigation products. Car Navigation System by Car GPS (global positioning system) receiver to monitor the current location of vehicles and will be stored in the CD-ROM or built-in memory (eg hard disk), the user-defined destination of digital map data for comparison to calculate driving directions , and real time location and route information to motorists. Map of the development of automotive electronics market will drive the need for GPS, digital map storage devices, display devices of the huge demand. Strategy Analytics predicts that annual demand for global navigation system will be 430 million units in 2002 to 1,220 million units in 2010.
Telematics Research Group forecasts the demand from the GPS receiver in 2004, 9.4 million units in 2010 to 3,000 million units. From a technical point of view, an old car with a GPS autonomous navigation system will face a number of space constraints, the use of car DVD disc mass storage advantage through the DVD player can display electronic map information, therefore, car DVD market is expected to grow rapidly. Telematics Research Group 2004 Nian 7 month forecast, the global annual demand for car DVD market will be 450 million units in 2004 to 3,300 million units in 2010. As the global auto market growth mainly from China, autonomous vehicle navigation systems market, the rapid development of the global market have a significant impact. According to Japanese media reports, based on the DVD / HDD navigation system is a growing trend, the global sales of such systems is expected to break 1,000 million in 2004 in China, although such a system is only just launched in 2003, it is expected its sales by 2008 more than 1 million.
Digital map data provider will be in this huge market demand driven by benefits. Now more sensitive to the popularity of electronic maps may be related to national security issues. In addition, the car radio receiver technology is moving from analog to digital reception mode to receive the evolution of software radio technology based on digital signal processors, digital radio receivers will lead the development of car direction, which ultimately might be AM / FM, TV receivers and satellite digital radio receiver, GPS and even an integrated communications and other functions into one. Philips CarDSP solution provides enhanced multi-path adaptive function of the amendment and a variety of antennas for improving the AM / FM radio or digital radio-quality audio-visual equipment such as car has an important significance, worthy of attention. 2. Body plenty of room for the development of electronic field As the number of automotive electronic appliances has risen dramatically, in order to reduce the number of connecting wires and body weight, network and bus technology has been greatly during this period of development, we aim to address the increase in automotive electronic subsystems of the security of data transmission , reliability and the total length of cable car too long lead to weight increase and other issues, and to meet the needs of automotive wire.
International automobile giants and leading manufacturer of automotive semiconductors made a series of car-bus standards, including: IDB-1394, and MOST (for multimedia), FlexRAY and TTCAN (for wire), CAN, IDB-C and GMLAN SWC (with the in the powertrain control), J1850 and LIN (for Body Control), Keywrod2000, and ISO 9141 (for diagnosis). We believe that auto body network systems development will bring China's auto electronics industry had a very good opportunity and entry point for the following reasons: 1. It reduces the barriers to entry of enterprises. With LIN or CAN bus interface with a single-chip solution, shortening the enterprises to develop e-research body cycle, reducing the supporting enterprises to enter the automotive electronics market threshold. 2. To improve the comfort of car use and expand value-added space for cars. Over the past using manual control of mechanical devices, such as car air-conditioning climate control, locks, windows, seats, internal and external lighting, mirrors, wipers and other subsystems, can be CAN or LIN bus-based network system to connect the body and thus had the opportunity to change the parts to be manually operated electrical control, the progressive realization of middle and low body cars and light trucks mechatronics control devices. automotive electronics market, iSuppli senior analyst Nancy Dang, said: "At present, high-level foreign cars automotive body sub-systems up to more than 50, the domestic mid-range cars, body electronics sub-system is only 6-7 months, so in the Chinese automotive body electronics the electronics industry is much room for future development. "Economic Operation Division, according to Ministry of Information Industry predicted that China Body Electronics from 2003 to 1.032 billion yuan increase in 2007 5.033 billion yuan, an increase of 3.8 times, second only to vehicle information communication systems increase (in 2007 compared to 2003 increased by 4.2 times).
Therefore, with a LIN / CAN bus interface of the MCU, the relevant power-driven devices, motor control MCU and implementation of the electro-mechanical components for body electronics products will have a huge demand exists. Freescale (Freescale) Semiconductor Automotive business development manager for the Ministry of Culture and Sport Xiaodui that: 1. This is currently ISO9141 and Keyword2000 is mainly used for diagnostic systems, the latter used in automotive electronic control more. 2. J1850 originally used only in North America in 2006 or 2007 will stop using, and then all go to the CAN bus. 3. LIN to CAN complementary, both in general, in combination, as compared with the CAN bus, LIN bus control mode is the biggest advantage of lower cost; from high fault tolerance of comparison, CAN bus target application is the car high-speed and multi-way data communications. 4. At present, CAN is still the highest reliability of automotive electronic control of the bus, Flexray its upgrade, but at present still an expensive, not practical application. 5. MOST is mainly used for streaming audio and video-based optical bus, can not be used to control. Other bus in the car with the electronic device to promote good. Kang Xiao Dun said: "Currently in China, CAN / LIN bus, the practical application has only just begun, different vehicles may be very different, the basic configuration may have 4,5 nodes, high-end cars may reach more than 50 nodes." At present, LIN support of an alliance of international automobile manufacturers, including giants such as BMW, Volvo, Audi, VW, Daimler Chrysler, etc. Therefore, the body electronic networks of the future directions of system development. Kang Xiao Dun added: "will MCU, power-driven, voltage regulator, and LIN physical layer interface as a whole constitutes a single-chip integration of LIN child nodes is now the main body of electronic controllers trends." 3. The most robust growth in automotive safety systems According to market research company Strategy Analytics report, automotive safety systems in the automotive electronics field, one of the strongest growth in demand, the annual average increase of 25% or more. DuPont Automotive recent survey shows that most users think the most problem is that cars need to consider the safety, than vehicle performance, in-car entertainment and fuel efficiency is more important, airbags and ABS are expected to become the standard configuration. Visteon's study also shows that: Security is the most automobile consumers concerned about. Renesas study reveals for mid-range cars: 1996 will be the foreign airbag as standard equipment since 2002 the international community have been detected in two passenger seats, safety belt pre-tensioners and sensor systems, together with the airbag as standard equipment is expected to pre-tighten seat belts in 2006 and the sensor system will be increased to 4, a significant increase in sensor systems is to increase the collision detection ability and improving the stability of the car, which may constitute a unified network of airbags. International automobile safety systems market is showing active and passive safety systems are developed and the trend towards integration, as shown in Figure 4 the development of automotive safety systems for the road map. At present, China's emerging automotive electronics in automotive safety products, design direction, the main development of Tire Pressure Monitoring System (TPMS), in order to prevent the front, side and rear collisions for the purpose of automotive radar systems, China is in the ABS and airbags Research has just begun. Currently appearing on the market tire pressure monitoring system (TPMS) can be broadly divided into two categories: (1) direct TPMS, it can be sensors and RF transmitter chip installed in the vicinity of the tire valve in the tire pressure is too high, too low, tires slowly leaking or temperature anomalies in time for the wireless receiver to a car alarm, so as to effectively to prevent puncture. The program's difficulty lies in the high reliability requirements, battery life, anti-vibration problem of the moderate level of reliability of the system have a certain influence, and secondly, the direct TMPS system uses radio frequency transceiver there is no established standard to follow, a number of manufacturing to adopt and wireless remote control door or alarm the same device and frequency (433MHz), usually FSK modulation approach is very difficult to actually use the same frequency to avoid interference problems, finally, placed in the tires on a low-power design for wireless sensor problem has plagued the industry. Development does not require batteries, a wireless sensor is the market demand and development direction. At present, direct-type TPMS technology is also divided into two kinds of active and passive technologies. Infineon's active system will be pressure sensors installed in each wheel, the car both to receive a variety of remote control devices, including RKE RF components can be used as tire pressure measurement receiver, and thus integrated into a complete tire pressure monitoring system. The advantages of active technology, a high degree of technological maturity, developed the modules applicable to all brands of tires, disadvantage is the need for battery-powered sensor module, so there is life problems. Passive techniques do not have battery-powered, it needs to be integrated into the transponder tires, this involves the tire manufacturer needs to establish a common standard is possible, only Siemens and Michelin is developing the technology, not yet mature products has emerged. (2) Indirect TPMS tire using ABS speed sensor to measure the speed of each tire, which is only inferred a tire pressure is inadequate, this system has a strong and durable, high reliability, without batteries and other troubled radio waves does not require modification of the car tires, with a much lower cost in comparison with the direct TMPS, especially for cars and light trucks, can be directly supporting the way to the depot into the market.
Indirect TPMS size of the market depends on the vehicle equipped with ABS, the size of the size of the market. At present, the truck safety has triggered widespread concern, the Chinese government is considering all of the trucks have adopted mandatory ABS in order to enhance the safety of roads, the use of direct TPMS systems for long lorries, plus trucks and heavy-duty trucks hanging tire pressure real-time monitoring, to prevent the driving tire due to storms caused serious traffic accidents have a significant social and market prospects. 4. Auto power management to 5-8% growth rate Delphi's research and forecasting, automotive electronic systems demand for electricity from now to 2030, will maintain an annual growth rate of 5-8%, during the transition phase 42V/12V power system is expected to become the de facto standards for vehicle power systems.
Advanced car electronics products in foreign countries, need to wire more than 2000 lines, various control devices, contact more than 4000, a total cable length of more than 4000 meters and weighing more than 40 kilograms, more than 100 motor and MCU, using 42V power system, the wire cross-sectional area of the existing mainstream 0.5-1.5mm2 reduced from 0.35 mm2, the benefits of performance in: 1. The same power under the current flowing through the wire is smaller, reducing the ohmic conductors of each loss, fuel consumption reduced by 10% -20%; 2. Wire the space freed up can add a new electronic system functions; 3. Use of aluminum instead of copper wire, and greater use of flexible wire, the motor can do a smaller size; 4. Meet the needs of the development of hybrid-fuel vehicles. Shanghai New Vehicle Technology Co., Ltd. on behalf of the MA Xi-ping said: "The use of 42V or 42V/12V power system can achieve energy saving and environmental protection requirements, so it is the inevitable trend of development of automotive electronics, the problem is that existing investments, develop a good product and supporting yuan It is difficult for us to abandon the existing device to restart the program. In the old car that has been established to promote application of 42V power system in its new application possibilities rather large, the process of phasing out old vehicles may also need 3-4 years time. " The latest news shows: As the energy and environmental protection, China will start in 1-2 years, mass production of hybrid cars, China's auto industry will be taken to gradually raise the necessary means vehicle electrical system voltage (12V, 16V, 24V, 36V ...) to meet the rapidly growing demand for power, under the influence of these two factors may lead to a variety of automotive power conversion modules (DC-DC converters), high voltage / high current power devices need a substantialin increasing.
As the vehicle-specific power devices occupy the bulk of the cost of automotive power supply, the industry will be forced to continue to develop new power device manufacturing processes to further reduce costs, SiC and GaN devices with high conversion efficiency, low power cooling system requirements, which may be enhanced the performance of automotive power devices technology development potential, is expected to ,5-10 years after the SiC and GaN devices are expected to be widely used in automotive power supply, so it is worth noting an important direction of development. As the car has just begun the process of electronic, automotive semiconductor power devices on-chip integrated circuits manufacturing line width requirements not so high, so the field is expected to become China's IC design companies and power module design company's entrance into automotive electronics market, the best entry point, the international top-level semiconductor device vendors to enter is expected to accelerate this process.
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