This product is specifically designed for the steering system of the BYD Qin PLUS EV pure electric vehicle. It is a core steering actuation component connecting the steering wheel to the wheels—the steering rack assembly. The steering rack adopts a rack and pinion electric power steering (EPS) structure, converting the rotational motion of the steering wheel into linear motion of the rack to steer the wheels. It is a core component ensuring precise handling, light steering feel, and driving safety.

As a core sales model of BYD's pure electric vehicle lineup, the BYD Qin PLUS EV comes standard with an electric power steering (EPS) system. The EPS system consists of sensors (torque/angle sensor, vehicle speed sensor), a controller (EPS ECU), and an actuator (EPS motor), along with related mechanical components, using the EPS motor to provide steering assistance. Compared to traditional hydraulic power steering, EPS offers significant advantages including lower energy consumption (no engine power drain), lighter weight, and speed-variable assist characteristics, making it particularly suitable for the high energy efficiency and intelligence requirements of pure electric vehicles. This product is developed and manufactured strictly according to BYD OEM technical standards, using a high-strength aluminum alloy housing with integrated high-precision torque/angle sensors and a permanent magnet synchronous motor. The product passes rigorous durability and salt spray tests, with OE numbers precisely matching the original vehicle for direct replacement of faulty or damaged original steering rack assemblies.