STEERING COLUMN SYSTEM


  1. CONSTRUCTION


    1. Power Tilt and Telescopic Mechanism


      1. The power tilt and telescopic system, the steering column sub-assembly consists of a tilt motor, telescopic motor and multiplex tilt and telescopic ECU.

      2. Position sensors, built into the tilt motor and telescopic motor, make accurate detection of the position of the steering column possible.

        A01MA5PC01
        *1 Tilt Motor *2 Steering Column Assembly
        *3 Telescopic Motor *4 Multiplex Tilt and Telescopic ECU

      3. A stepless adjustment enables the tilt mechanism to be tilted 5.26° vertically, and the telescopic mechanism to be moved 45.0 mm (1.77 in.) longitudinally.

        A01MABUC01
        *a Tilt *b 2.63°
        *c Telescopic *d 22.5 mm

    2. Energy Absorbing Mechanism


      1. The energy absorbing mechanism uses an inner tube, outer tube and breakaway bracket for the secondary collision and an intermediate shaft for the primary collision.

      2. When the steering gear moves during a collision (primary collision), the impact is absorbed by the corrugated part of the intermediate shaft.

      3. When the impact of a collision is transmitted to the steering wheel (secondary collision), the pin of the breakaway bracket is sheared and the inner tube is forced into the outer tube,thereby absorbing energy.

        A01MAE5C01
        *1 Breakaway Bracket *2 Steering Column Assembly
        *3 No. 2 Steering Intermediate Shaft Assembly - -
        *a Before Primary Collision *b After Primary Collision
        A01MA2C Contract - -

      4. When a collision impact is transmitted to the steering wheel (secondary collision), the steering wheel and the driver's airbag help absorb the impact. In addition, the breakaway bracket separates, and the main shaft and column tube contracts. At this time, the friction resistance of the sliding portion absorbs the energy. This sequential energy absorbing mechanism helps absorb the impact of the secondary collision.

        A01MAGCC01
        *1 Main Shaft *2 Column Tube
        *a Before Secondary Collision *b Sliding Stroke
        *c After Secondary Collision - -