ESP Operation Mode: Notes

1. STEP 1

   The ESP analyzes the intention of the driver.

   Courtesy of HYUNDAI MOTOR AMERICA

2. STEP 2

   It analyzes the movement of the ESP vehicle.

   Courtesy of HYUNDAI MOTOR AMERICA

3. STEP 3

   The HECU calculates the required strategy, then actuates the appropriate valves and sends torque control requests via CAN to maintain vehicle stability.

Courtesy of HYUNDAI MOTOR AMERICA

ESP Hydraulic System Diagram 

1. ESP Non-operation: Normal braking.

   Solenoid Valve	Continuity	Valve	Motor Pump	TC Valve
   IN (NO)	OFF	OPEN	OFF	OFF
   OUT (NC)	OFF	CLOSE

2. ESP operation

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