LEXUS DYNAMIC HANDLING


  1. OUTLINE


    1. A Lexus Dynamic Handling (LDH) system is used, which consists of the Variable Gear Ratio Steering (VGRS) system, which controls the turning angle of the front wheels, and the Dynamic Rear Steering (DRS) system, which controls the turning angle of the rear wheels. The LDH system integrates and controls the VGRS system, DRS system and Electric Power Steering (EPS) system, which controls steering torque, achieving both vehicle reaction performance appropriate to the driver's intention and superior vehicle stability.

    2. The LDH system drives the steering actuator assembly and rear steering link assembly in accordance with the angle of the steering wheel and the vehicle speed, controlling the lateral vehicle dynamics, such as the vehicle slip angle and yaw rate, to achieve target vehicle characteristics.

    3. The control of the turning angle of the front and rear wheels is calculated by the FR steering control ECU.

    4. The LDH system performs control in cooperation with the Vehicle Dynamics Integrated Management (VDIM) system, achieving superior vehicle stability.

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