丰田RAV4 底盘坡道辅助系统培训.ppt

HAC2 (Hill-start Assist Control 2)
General
When starting to move up the hill slope, the system prevents the vehicle from rolling backward
Brake Control
HAC2 (Hill-start Assist Control 2)
Major difference from HAC1
Item
HAC2
HAC1
Equipped Model
AT and MT model
AT model only
Operation Condition
HAC2 can be operated even at R range
HAC1 can not operate at R range
Operation Beginning Condition
When the brake pedal is depressed further while vehicle stopping
When the backward movement of the vehicle is detected
Operation
Prevents the vehicle from rolling backward
Reduces the backward speed of the vehicle
Max. Brake Control Time
Approx. 2 sec.
Approx. 5 sec.
HAC2 (Hill-start Assist Control 2)
Operation
Operation beginning condition
Shift position other than P
(AT model only)
Accelerator pedal OFF
Stopped
PKB OFF
Preconditions
Brake pedal is depressed further
Brake Control
HAC2 (Hill-start Assist Control 2)
Operation
Operation canceled condition
Shift position P
(AT model only