System Description

• This function senses driving based on the driver's steering and acceleration/braking patterns, and controls brake pressure at individual wheels to aid tracing at corners and help smooth vehicle response.
• Amount of brake control is changed based on drive mode select switch.
• When the VDC function is turned OFF, active trace control function is also turned OFF.
• When active trace control function is not functioning properly, the master warning lamp illuminates, and Warning message will also appear on information display.
  NOTE:

  • Active trace control function is not always activated in any driving conditions.
  • When the active trace control function is activated, the driver may feel some vibration on the brake pedal, hear operating sound, or have feel of the deceleration. This is not a malfunction because it is caused by active trace control function that is normally operated.

OPERATION CHARACTERISTICS 

• Transient steering input - Reduces lag of yaw rate against steering operation.

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  • The brake is controlled according to the steering operation condition of the driver and the cornering condition of the vehicle.

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• Acceleration at corners - Restrains understeer by applying the necessary amount of brake pressure to the inner wheels.

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  • The brake is controlled according to the steering operation condition of the driver and the cornering condition of the vehicle.

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• Quick lane change - achieves stable vehicle behavior at quick steering operation by applying the necessary amount of brake pressure to the appropriate wheels.

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  • The brake is controlled according to the steering operation condition of the driver and the cornering condition of the vehicle.

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SYSTEM DIAGRAM 

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INPUT SIGNAL AND OUTPUT SIGNAL 

Major signal transmission between each unit via communication lines is shown in the following table.