POWER STEERING SYSTEM


  1. OUTLINE


    1. A vehicle speed sensing type Electric Power Steering (EPS) system is used.

    2. This system generates assist torque using a power steering motor assembly and a reduction mechanism mounted on the steering column assembly to assist the driver's steering.

    3. Electric load control is used. This control prevents the assist torque from decreasing when the battery voltage decreases.

    4. A rack and pinion type steering gear assembly is used.

  2. SPECIFICATION

    Power Steering Type Electric Power Steering (EPS)
    Steering Gear Type Rack and Pinion
    Rack Stroke mm (in.) 145 (5.71)
    No. of Turns Lock to Lock 2.74
    Steering Gear Ratio (Overall) 14.8

  3. MAIN FEATURES


    1. The EPS system has the following features:


      1. The EPS system activates the power steering motor assembly only when the driver turns the steering wheel. This reduces energy consumption when the vehicle is going straight, resulting in excellent fuel economy.

      2. The torque sensor, power steering ECU assembly, power steering motor assembly and reduction mechanism are integrated into the steering column assembly, creating a simple and compact structure.

      3. Unlike a conventional hydraulic power steering system, this system excels in serviceability because it does not require pipes, a vane pump, pulley, or power steering fluid.

  4. PRECAUTION


    1. Ignition Switch Expressions


      1. The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

        Expression

        Ignition Switch

        (Position)

        Engine Switch

        (Condition)
        Ignition Switch off LOCK Off (Lock)
        Ignition Switch ACC ACC On (ACC)
        Ignition Switch ON ON On (IG)
        Engine Start START On (Start)