DESCRIPTION OF CONSTRUCTION AND OPERATION
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-21
other via the CAN bus line. When the accelerator
pedal is depressed too far, the signal requesting the
engine speed reduction is sent to the engine-ECU.
The ASC-ECU performs joint control with CVT-ECU
and secures the TCL controllability.
HSA OPERATION
ASC-ECU receives various kinds of information from
the engine ECU, G & yaw rate sensor, CVT-ECU,
ETACS-ECU and wheel speed sensor. When the
vehicle has been completely stopped on a slope by
the service brake, the ASC-ECU activates the HSA.
The HSA maintains the brake wheel cylinder pres-
sure by closing the cut valve to prevent the vehicle
from sliding down the slope when the brake pedal is
released at startup. It also adjusts the brake wheel
cylinder pressure depending on the engine torque to
prevent the vehicle from moving backward during
startup.