TCS FUNCTION : System Description: Notes

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WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.

Wheel spin status of drive wheel is detected by wheel sensor of 4 wheels. Motor torque and transmission shift status is controlled so that slip rate of drive wheels is in appropriate level. When wheel spin occurs on drive wheel, ABS actuator and electric unit (control unit) perform brake force control of LH and RH drive wheels (apply brake force by increasing brake fluid pressure of drive wheel) and decrease motor torque by motor torque control. Wheel spin amount decreases. Motor torque is controlled to appropriate level.

Fig 1: TCS Function Speed Vs Time Graph
Courtesy of NISSAN MOTOR CO., U.S.A.
TCS function can be switched to non-operational status (OFF) by operating VDC OFF switch. In this case, VDC OFF indicator lamp turns ON.
VDC warning lamp blinks while TCS function is in operation and indicates to the driver that the function is in operation.
CONSULT can be used to diagnose the system diagnosis.
Fail-safe function is adopted. When a malfunction occurs in TCS function, the control is suspended for VDC function, TCS function, brake limited slip differential (BLSD) function and brake assist function. The vehicle status becomes the same as models without VDC function, TCS function, brake limited slip differential (BLSD) function and brake assist function. However, ABS function and EBD function are operated normally.
Refer to "FAIL-SAFE ".