Toyota Camry Hybrid AHV40 Manual page 127

CH-26
Examples of Control Operation
1) General
The difference in vehicle control during harsh braking situations while cornering, with the VDIM and
conventional brake control systems, is as follows:
2) Conventional
Conventional brake control systems calculate vehicle motion based on signals transmitted by yaw rate
and deceleration sensors, the speed sensors and the steering sensor, and activates VSC systems when
vehicles are determined to be skidding. If the driver brakes suddenly, brake control systems perform
assisting control to stabilize the vehicle dynamics, by activating the ABS system when a locked wheel
is detected, or by affecting the VSC system when skidding is detected.
Vehicle Dynamics
3) VDIM
The VDIM also calculates vehicle motion based on signals from the yaw rate and deceleration sensor,
speed sensors and steering sensor. When the calculations indicate that the vehicle is likely to skid, the
VDIM begins vehicle control with the VSC function. In addition, if the driver brakes suddenly, the VDIM
reduces vehicle instability to a minimum and assists in achieving optimum driving stability by seamlessly
delivering a suitable combination of the VSC and ABS functions.
Vehicle Dynamics
CHASSIS - BRAKE
Harsh Braking
Harsh Braking
: VSC or ABS
: Control Area
Braking
277CH146
: VDIM Control Area
Braking
277CH147