BLIPPING Control

This system makes transmission clutch engage readily by controlling (synchronizing) engine revolution according to the (calculation of) engine revolution after shifting down.

• "BLIPPING CONTROL" functions.
  • When downshifting by accelerator pedal depression.
  • When downshifting by the manual mode.
    Fig 1: Blipping Control Block Diagram

    Courtesy of NISSAN MOTOR CO., U.S.A.
• TCM selects "BLIPPING CONTROL" or "NORMAL SHIFT CONTROL" according to the gear position, the selector lever position, the engine torque and the speed when accelerating by pedal depression.
• Engine speed control demand signal is transmitted from TCM to ECM under "BLIPPING CONTROL".
• ECM synchronizes the engine speed according to the engine speed control demand signal.
  Fig 2: Gear Position Signal Graph (Downshifting With Accelerator Pedal Depression)

  Courtesy of NISSAN MOTOR CO., U.S.A.
  Fig 3: Gear Position Signal Graph (Downshifting With Manual Mode)

  Courtesy of NISSAN MOTOR CO., U.S.A.