BLIPPING Control

It controls (synchronizes) engine speed to have a quick shift clutch coupling, by calculating engine speed after downshifting and by cooperating with ASC (Adaptive Shift Control).

• "BLIPPING CONTROL" functions.
  • When downshifting by accelerator pedal depression.
  • When downshifting by the manual mode.
  • It works on shift-down operation by ASC at high speed side when driving at D position or in DS mode.
    Fig 1: Accelerator Opening Versus Vehicle Speed Graph

    Courtesy of NISSAN NORTH AMERICA, INC.
• 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: Engine Speed Control Demand Signal Waveform (Downshifting By Accelerator Pedal Depression)

  Courtesy of NISSAN NORTH AMERICA, INC.

Fig 3: Engine Speed Control Demand Signal Waveform (Downshifting By Manual Mode And On Shift-Down Operation By ASC At High Speed Side)

Courtesy of NISSAN NORTH AMERICA, INC.