System Description - Active Trace Control

Active Trace Control function controls the braking utilizing the ABS actuator and electric unit (control unit), depending on cornering condition calculated from driver's steering input and plural sensors. Active Trace Control function is aimed to enhance traceability at corners and smooth the vehicle movement to provide confident driving.

Active Trace Control function can be switched ON/OFF through the "Chassis Control" settings on the vehicle information display. When the Active Trace Control is selected OFF, some functions will be kept ON to assist driver (for example, avoidance condition).

When the VDC OFF switch is used to turn OFF the VDC system, the Active Trace Control system is also completely turned OFF.

• Steady cornering - The change of forward and lateral acceleration is smoothened by applying the necessary amount of brake pressure.
  Fig 1: Overview Of Active Trace Control Function Diagram (Steady Cornering)

  Courtesy of NISSAN NORTH AMERICA, INC.
• Transient steering input - Reduces lag of yaw rate against steering operation.
  Fig 2: Overview Of Active Trace Control Function Diagram (Transient Steering Input)

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• Acceleration at corners - Restrains understeer by applying the necessary amount of brake pressure to the inner wheels.
  Fig 3: Overview Of Active Trace Control Function Diagram (Acceleration At Corners)

  Courtesy of NISSAN NORTH AMERICA, INC.
• Quick lane change - achieves stable vehicle behavior at quick steering operation by applying the necessary amount of brake pressure to the appropriate wheels.
  Fig 4: Overview Of Active Trace Control Function Diagram (Quick Lane Change)

  Courtesy of NISSAN NORTH AMERICA, INC.