Car electronics is considered to be a revolution in the development process of automobile technology. The degree of automobile electronics is regarded as an important symbol to measure the level of modern automobiles. It is the most important technical measure to develop new models and improve automobile performance. . Automakers believe that increasing the number of automotive electronic devices and promoting automotive electronics is an effective means to capture the importance of the future automotive market.
With the rapid development of the automotive electronics industry, it also provides a promising development space for automotive micro and special motor products. my country regards the automobile industry as a pillar industry and develops rapidly. At the same time, the global procurement trend of automotive electronic components is increasing. Therefore, this article focuses on the important role played by micro and special motors in automotive environmental protection, energy saving, comfort, etc. Focus on domestic and foreign markets for automotive electronics.
One, environmentally friendly electric vehicles
In order to protect the environment and save the increasingly scarce petroleum resources, the world's auto manufacturers attach great importance to the development and commercialization of electric vehicles, especially the world's famous auto companies spend huge sums of money to concentrate their manpower to accelerate the development of various electric vehicles .
Electric vehicles mainly include pure electric vehicles, hybrid electric vehicles and fuel cell electric vehicles. Pure electric vehicles have been researched and developed since the 1970s, but battery life is the Achilles' heel. Hybrid vehicles can basically meet people's requirements for automobiles on the basis of sacrificing some environmental protection interests, but two systems (battery motor/internal combustion engine) are installed at the same time on a car that only has one system installed, increasing the size of the car itself. At the same time, it also increases the requirements of the overall process, control and other aspects. At present, hybrid electric vehicles have been commercialized, and the industrialization of fuel cell electric vehicles will also be completed. However, no matter which type of electric vehicle is, it is a motor-driven power system. Therefore, both at home and abroad attach great importance to the research and development of drive motors and their control systems. The technology develops rapidly, and high-output, high-efficiency, and high-reliability motors and control systems continue to emerge.
Second, energy-saving electric assist
Without power steering, steering is easy at high speeds, but difficult when turning slowly. The newly adopted electric power steering system replaces the traditional hydraulic power steering system, which makes driving effortless and safe, and saves energy.
Automotive power steering system is generally a hydraulic power steering system composed of a valve body and a hydraulic power cylinder. In order to ensure the reliable operation of the system, a small load should always be continuously applied to the engine, even when power steering is not required. , this small load is also applied to the engine. At present, it is developing and starting to use a non-contact rotary transformer to replace the valve body, and use a servo motor to replace the hydraulic power cylinder of the automobile electric power-assisted vehicle steering system. It only needs to absorb electric energy when power steering is needed. Compared with the former, it can Save 3-5% energy. At the same time, the electric power steering system also has the advantages of simple mechanical structure, high reliability, good road feel, sensitive response, and improved driving safety. The precision servo motor and non-contact resolver used in the steering system of the automobile electric bicycle are the core components of the steering system of the automobile electric bicycle. The precision servo motor can be selected from a brushed DC servo motor or a brushless DC servo motor.
Three, comfortable electric drive
In order to improve the comfort of car use and expand the value-added space of cars. In the past, the mechanical devices that used manual control, such as car door locks, windows, seat steering, rearview mirrors, wipers and other subsystems, can change the original manually operated mechanical devices to motor-driven, and gradually realize the automation of car control devices. Mechatronics. The motor drive of the micro motor in the car is mainly distributed in the three parts and accessories of the engine, chassis and body of the car, and will gradually become the power system of the car.
A. Application in automobile engine parts: mainly in automobile starter, electronic fuel injection control system, engine water tank radiator and generator. Several DC motors are used in these parts.
B. Application on automobile chassis frame: mainly in automobile electronic suspension control system, electric power steering device, automobile stability control system, automobile cruise control system, anti-lock braking control system and driving power control system application. Among them, permanent magnet DC motors or permanent magnet stepping motors are widely used.
C. Application of auto body parts: mainly in the central door lock device, electric rearview mirror, automatic lift antenna, electric sunroof, automatic headlight, electric car seat adjuster, electric window regulator, electric wiper applications such as air conditioners, air conditioning systems, electric electronic speedometers, etc. Among them, permanent magnet DC motors and permanent magnet stepping motors are commonly used.
D. Application in car accessories: mainly in vacuum cleaners, inflators, air pumps, polishing machines, electric seat massagers and other devices.
In summary, as electronic technology is widely used in automobiles, the application of micro-motors in automobiles will be wider. Such as information systems, navigation systems, car audio, TV entertainment systems, vehicle communication systems, Internet access systems, the number of applications of its micro-motors has also increased. As one of the key components in automobiles, Shengfeng micro-motors are equipped with about 30 micro-motors for each economical car, at least 50 micro-motors for high-end cars, and nearly 100 micro-motors for luxury cars.
The era of automobile electronics has arrived, and automobiles have broken through the traditional concept of just being a means of transportation. With the change of people's consumption concept, electronic, networked, intelligent, and energy-saving mid-to-high-end automobiles will become the new favorite in the market. . Micro and special motors are bound to make a big difference in the field of automotive electronics.
