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To break the monopoly of foreign manufacturers, these manufacturers began to realize the replacement of domestic motor drive chip

Update time : 2022-08-17 17:21:09

From the point of view of the definition, motor is according to the law of electromagnetic induction to achieve energy conversion and transmission of an electromagnetic device, the main role is to produce driving torque, as electrical appliances or a variety of mechanical power source. According to different uses, the motor can be divided into driving motive and control motor. Among them, the driving motor directly converts electrical energy into mechanical energy, which is mainly used in power tools, household appliances and other general small mechanical equipment; The control motor is mainly used for the precise control of speed and position, which can be divided into stepper motor and servo motor. As one of the three core components of new energy vehicles, the driving motor replaces the engine of traditional cars as the main executive mechanism of electric vehicles. Its performance determines the main performance indicators of vehicle driving such as climbing ability, acceleration ability and maximum speed, which directly affects the vehicle power, economy and comfort.

According to different technical routes, new energy vehicle driving motor can be divided into DC motor, AC asynchronous motor, permanent magnet synchronous motor, switched reluctance motor. The permanent magnet synchronous motor is added to the permanent magnet in the manufacture of rotor, which has high power density, good force energy index, efficient energy saving, simple structure and high reliability advantages. It is the main motor type of the new energy car in China, accounting for more than 97%.
Although motor driver chip has long been monopolized by foreign companies, but with the support from the government and capital in our country, have sprung up in recent years also similar peak 岹 will easy to micro, and signs in the innovation of science and technology and so on many outstanding enterprises. Especially in the field of vehicle gauge motor driver chip, with the peak 岹 byd semiconductor, semiconductor technology, intellectual core such as the rise of domestic manufacturers, fill in the blank car rules of motor driver chip technology in China, and gradually narrow the technology gap with foreign companies. Byd Semi-conductor is mainly engaged in the research and development, production and sales of power semiconductors, intelligent control ICS, intelligent sensors and optoelectronic semiconductors. Since its establishment, the company has been focusing on automotive grade semiconductors and promoting the development of semiconductor business in the fields of industry, home appliances, new energy and consumer electronics. Power semiconductor is the "ace business" of BYD Semiconductor, ranking first among domestic semiconductor manufacturers, with a market share of 19%. At present, the domestic market share ranking first is still the global automotive power semiconductor giant - Infineon. As one of the important application scenarios of motor drive chip terminals, driven by the rapid development of new energy vehicles in recent years, the demand for motor drive chips for car gauge has increased rapidly. In terms of sales, a total of 6.75 million new energy vehicles were sold globally in 2021, up 108% year-on-year. Among them, China's total sales reached 3.521 million units, up 157.5% year on year, making it the world's largest market. As the main driving source of electric vehicles, the motor accounts for about 10% of the total vehicle value, and is one of the most core parts of the new energy vehicle industry chain. With the production and sales of new energy vehicles booming, the sales of supporting motors are also gradually rising.
Among the startups, Smartchip, founded in 2019, recently launched the Z20A13100, a series of automobile-grade motor driver chips. According to the company, the product meets the AEC-Q100 standard and supports the ASIL-B system design, which is mainly aimed at 12V/24V automotive motor applications such as automotive water pumps, oil pumps, fans, steering and braking systems, etc. With the launch of Z20A13100, SMARTCHIP can provide a complete system-level solution for various automotive motor applications by combining the M0+/M4 series MCUS and self-developed motor control algorithms.

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