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Home >> Hyundai >> 2006 >> Tucson Limited, 4WD >> Repair and Diagnosis >> Brakes >> Traction Control >> ESC (Electronic Stability Control) System >> Description Of ESC >> ESC Operation Mode

ESC Operation Mode

  1. ESC Non-operation-Normal braking.
    Fig 1: ESC Operation Mode (Non-Operation-Normal Braking)
    G03764149Courtesy of HYUNDAI MOTOR CO.
    • Operation 

      In this position, the inlet valve and the TCS valve are open, the electrically operated shuttle valve and the outlet valve are closed.

      * ESV: Electric reversing valve.

      ESC OPERATION MODE

      Solenoid valve Continuity Valve Motor pump TC Valve
      IN (NO) OFF OPEN OFF OFF
      OUT (NC) OFF CLOSE
  2. ESC operation
    Fig 2: ESC Operation Mode (Operation)
    G03764150Courtesy of HYUNDAI MOTOR CO.
    • Operation 

      The on/off booster builds up a pressure of approx. 10 bar in order to enable the ESC pump to suck brake fluid at low temperatures. In this position, the inlet valve is driven in a pulsed cycle. The TCS valve is closed. The outlet valve remains closed. The electrically operated shuttle valve is opened. The hydraulic pressure is led to the wheel brakes which are to be applied for a brief period of time.

      ESC OPERATION MODE

      Solenoid valve Continuity Valve Motor pump TC Valve
      Understeering (Only inside of rear wheel) IN(NO) OFF OPEN ON ON
      OUT(NC) OFF CLOSE
      Oversteering (Only outside of front wheel) IN(NO) OFF OPEN
      OUT(NC) OFF CLOSE
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