Disassembly and analysis of BYD Seal 8-in-1 electric drive

BYD Haibao's eight-in-one electric drive system is praised by the industry as a representative of high efficiency. Its vertical integration design concept integrates eight parts, including motor, inverter, reducer, DC-DC converter, on-board charger, battery management system (BMS), and VCU, which not only effectively utilizes the space in the car, but also greatly reduces costs. For example, compared with Tesla and Volkswagen, BYD Haibao's costs are reduced by 15% and 35% respectively.