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During High-speed Operation

Fig 1: Operation Principle - During High-Speed
G04887358Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Power steering solenoid valve is opened during high-speed operation.
  2. Pinion "1R", "2R" and "3R" are closed depending on steering torque of steering wheel.
  3. Oil pressure "2R" does not occur because the power steering solenoid valve is on full throttle.
  4. Oil pressure "P" in the gear housing assembly includes only oil pressure occurred in "3R" and results in a heavy steering force.
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