Toyota Camry Hybrid AHV40 Manual page 128

Control Configuration of VDIM
Sensors
Brake System
Function
The brake control system of the '07 Camry Hybrid model has a following function:
Brake
Control Function
System
Regenerative Brake
Cooperative Control
Power Steering Cooperative
Control
VSC
(Vehicle Stability
Control)
TRAC
VDIM
(Traction Control)
ABS
ECB*
(Anti-lock Brake
System)
EBD
(Electronic Brake
Force Distribution)
Brake Assist
*: ECB (Electronically Controlled Brake System)
CHASSIS - BRAKE
Skid Control ECU
Target Vehicle
Behavior Calculation
Vehicle Condition
Calculation
Control Value
Calculation
Controls hydraulic braking in order to recover electrical energy by
utilizing the regenerative brake of the THS II as much as possible.
Effects cooperative control with the EPS ECU in order to provide
steering assist in accordance with the operating conditions of the
vehicle.
D This system electrically detects the operation information for
the brake pedal and generates an appropriate amount of
hydraulic brake.
D Executes the hydraulic control of the brake control functions
based on the VDIM.
The VSC function helps prevent the vehicle from slipping
sideways as a result of strong front wheel skid or strong rear wheel
skid during cornering.
The TRAC function helps prevent the drive wheels from slipping
if the driver presses the accelerator pedal excessively when
starting off or accelerating on a slippery surface.
The ABS helps prevent the wheels from locking when the brakes
are applied firmly or when braking on a slippery surface.
The EBD control utilizes ABS, realizing the proper brake force
distribution between front and rear wheels in accordance with the
driving conditions.
In addition, during cornering braking, it also controls the brake
forces of right and left wheels, helping to maintain the vehicle
behavior.
The primary purpose of the Brake Assist is to provide an auxiliary
brake force to assist the driver who cannot generate a large brake
force during emergency braking, thus helping the vehicle's brake
performance.
Hybrid System
Steering System
Outline
CH-27
277CH145