Electrically Controlled Power Steering System

Description

SYSTEM DESCRIPTION
The power steering system is a twin orifice type, which uses a vehicle-speed sensing, electronic control design. Solenoid valve sensitivity is controlled in response to vehicle speed to achieve optimum steering effort.

FAIL-SAFE FUNCTION





The fail-safe function operates to regulate solenoid valve operation in response to engine speed, thereby maintaining the required steering force.

Fail-Safe Input Conditions





NOTE: When the engine is rewed up to 1,500 rpm or more for at least 10 seconds with vehicle at standstill, the fail safe function operates; however, this is not a matter of concern. The fail-safe function can be released by driving vehicle of a speed of greater than 1.4 km/h (0.9 MPH) or by turning ignition switch from "OFF" to "ON".





HYDRAULIC CIRCUIT