2. Chang Ying Credit: In 2020, it will realize an operating income of 2.878 billion yuan, with a year-on-year increase of -3. 15%. The company is mainly engaged in the research, development, production and sales of all kinds of motors and their core components, and provides professional supporting services for many domestic and foreign large-scale motor and electrical appliance manufacturers such as Valeo, Bosch and Denso. At present, the company's main products are: automobile generator stator and assembly, micro-motor rotor, electric vehicle stator and assembly, electric tool motor rotor and elevator traction machine stator, VVT (automobile variable valve timing system).
3. Huichuan Technology: The operating income in 2020 is 1 15 1 billion, with a year-on-year increase of 55.76%. Since its establishment, Shenzhen Huichuan Technology Co., Ltd. has been focusing on core technologies such as motor drive and control, power electronics and industrial network communication. Adhere to technology marketing and industry marketing, and provide customized solutions of "industrial control+technology" and import substitution business strategy for sub-sectors to realize the growth of enterprise value and customer value.
1, the so-called motor, as the name implies, is a kind of power element that converts electrical energy and mechanical energy into each other. The motor is the power source, and the start and stop of the motor also need the control of the car brain; When electric energy is converted into mechanical energy, the electronic control unit is equivalent to the ECU of a traditional automobile, and it is the main execution unit for controlling high-voltage components on an electric vehicle. In addition to motor control, the control of vehicle charger, DC-DC unit and other related components is also realized by electronic control unit.
2. The core of the electronic control unit. On the one hand, electronic control is aimed at the control of batteries and motors; On the other hand, it is necessary to effectively integrate independent control and ECU brain, which can effectively control the vehicle state without interference. Power battery is the provider of power unit, which provides direct current, while driving motor needs three alternating currents.