Analysts of the New Sijie Industry Research Center believe that in the future, BYD will increase the research and development of IGBT modules, on the one hand to improve the electronic control performance, to meet the needs of new models, and on the other hand to expand the market size of IGBT modules to achieve external sales.
BYD Co., Ltd. has always attached importance to the development and innovation of new products and new technologies, and regards the development of new products as an important guarantee for the company to maintain its core competitiveness. BYD has always attached great importance to the research and development of new products and new technologies. It has a strong R&D team, built a multi-disciplinary research system and a strong patent reserve, enabling the company to have global leading technology in the fields of battery, motor and electronic control. strength. The daily work of the electronic control system is to distribute the energy to the four wheels through electronic signals, and at the same time, the sensors throughout the vehicle will feedback and exchange the information of each part in time.
In the “2017-2021 China Electric Vehicle Market Analysis and Development Prospects Research Report” released by Xinsijie, the latest technology of BYD Electronic Control is discussed in detail:
In terms of electronic control design, BYD provides the BM3451/3452 series IC independently developed by BYD, which has the characteristics of high precision and high integration. Through monitoring the voltage, charge and discharge current and ring temperature of each battery to achieve battery overcharge, over discharge, over current, temperature protection and other protection functions, external capacitors can be used to adjust overcharge, over discharge, overcurrent protection delay Time. In addition, the BM3451/3452 series is available in a variety of packages to provide customers with customized chip sizes.
BYD has the core technology of VCU/MCU, which is developed by BYD’s internal automotive engineering research institute. The pure electric vehicle controller is VCU and the hybrid power is HCU. In both aspects, BYD has mature technology. The technology collects driver driving signals through sensors, obtains motor and battery information through CAN bus, and shares and calculates. Motor and battery management commands are given via the CAN bus for vehicle drive control, energy optimization control and brake feedback control.
The motor controller is mainly composed of a control circuit, a drive circuit, a housing structure, and various sensors. The most important of these is the IGBT module in the drive circuit, which accounts for about 40% of the cost in the entire electronic control system. BYD is a vehicle manufacturing enterprise and produces its own electronic control products. Due to the more complicated application conditions of IGBT chips for new energy vehicles, high temperature, high humidity and high vibration, as well as assembly volume and cost, are very strict, which gives BYD’s IGBT. The development and production of chips put forward higher requirements.
Analysts of the New Sijie Industry Research Center believe that in the future, BYD will increase the research and development of IGBT modules, on the one hand to improve the electronic control performance, to meet the needs of new models, and on the other hand to expand the market size of IGBT modules to achieve external sales.
