Automatic Brake Hold
Function that maintains the vehicle in a stopped state, even if the driver takes their foot off the brake pedal
When the driver steps on the brake pedal to stop, the braking force is automatically maintained. This frees the driver from having to continually press the brake pedal while waiting for a traffic light or while in a traffic jam, thus reducing foot fatigue.*1 When beginning to move again, the braking force is automatically released when the driver steps on the accelerator, so no additional operation is required.
System operation
When the Automatic Brake Hold switch is pressed to enable the function, if the driver steps on the brake pedal to stop, then the system will retain the braking force and maintain the vehicle in a stopped state, even when the driver's foot is removed from the pedal. When the driver presses the accelerator pedal, the system smoothly releases the braking force and the vehicle can begin moving.
The system's operational status is displayed in the meter, and the indicator changes from white to green when it is maintaining braking force.
If
the
vehicle
is
stopped
for
more
than
three
minutes,
then
it
will
automatically
switch
to
the
electric
parking
brake
and
the
indicator
will
turn
off.
When
the
driver
steps
on
the
accelerator
pedal,
the
electric
parking
brake
is
released
and
the
indicator
light
will
turn
white
again.
System mechanism
When the vehicle is stopped by operating the brake pedal, the VDC*2 unit maintains the brake fluid pressure and maintains the vehicle in a stopped state. When the accelerator is operated, the VDC unit smoothly reduces the brake fluid pressure and releases the braking force.
When the vehicle is stopped for more than three minutes, the driver's seat belt is removed, or the driver's door is opened, then the electric parking brake is activated instead of the VDC.
- The drive must pay attention to safety even when the stop is being maintained.
- Vehicle Dynamics Control
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