BMS self-developed by China FAW passed OTS approval

Those familiar with electric vehicles may know how important it is for an electric vehicle to have an excellent Battery Management System (BMS). IIA learned from China FAW that under the joint efforts of the project management department of China FAW New Energy Development Institute and the Battery Research Institute, the Institute of Electrical and Electronic Research of the Intelligent Networking Development Institute, the Materials and Lightweight Research Institute of the General Research and Development Institute and the suppliers, the FME platform BMS is approved by OTS.

BMS is commonly referred to as a battery "nanny" or "housekeeper", mainly to intelligently manage and maintain each battery unit, prevent the battery from overcharging and overdischarging, extend the battery life, and monitor the battery status.

It is reported that the FME platform BMS is a product independently developed by China FAW. A master multi-slave hardware topology using a battery control unit (BCU) plus multiple battery sampling units (BSU). BCU optimizes and upgrades on the basis of the corresponding products of Hongqi EV, and realizes independent development for the first time. Daisy chain communication between BCU and BSU reduces product cost.

The system design, shell design, application strategy development, software and hardware integration, system testing, bench testing, and prototype testing of this BMS are completed by the Battery Research Institute of the New Energy Development Institute. The hardware and basic software are developed by Intelligent Network Completed by Institute of Electronics and Electrical Engineering.

The OTS accreditation test started in January 2020 and lasted nearly 4 months. During the period, due to the influence of uncontrollable factors, it caused great difficulties to the work. From the design department to the production implementation unit, several departments online joint office , The supplier also actively cooperates with overtime and overtime to expedite the test schedule, jointly discuss and solve various problems, promote the implementation of the plan, and promote the progress of the test, ensuring that the OTS certification test is completed within the specified time, and the product OTS certification is successfully passed to ensure that it does not affect the project Battery PACK SOP node.

In addition, according to previous information, the first model of the FME platform, the Hongqi E-HS9, will be officially unveiled at the China (Changchun) International Auto Expo on July 3.

The Hongqi E-HS9 has a domineering and luxurious body, the overall design is highly variable, and the vehicle's comprehensive cruising range is more than 600 kilometers. It is also equipped with an air suspension and is equipped with L4 level automatic driving technology, and can accelerate from 0 to 100km/h within 4 seconds.