Description & Operation: Notes
The electronic power steering (EPS) system uses the same components at that of conventional power steering system. In addition, it has a solenoid valve on power steering gear box, and a control unit underneath the audio of the center facia. To control the oil flow of steering gear box, a solenoid is provided and it functions by the current from control module which receives signal from VSS (Vehicle Speed Sensor).
EPS performs the conventional power steering function in case a fail has occurred in the system.
EPS electronically controls the current to the solenoid of by-pass valve by input sensor's signal to control the hydraulic amount in cylinder chamber thereby varying the steering effort versus the hydraulic pressure according to vehicle speed.