Electrically-Driven Intelligent Brake Unit

ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT

Fail-Safe

- When there is a malfunction in the power system of the electrically-driven intelligent brake unit (no voltage is generated), voltage is temporarily supplied to the electrically-driven intelligent brake unit from the brake power supply backup unit. At the same time, the brake warning lamp (red) and brake system warning lamp (yellow) turn ON and the buzzer sounds.
- When a malfunction occurs in the electrically-driven intelligent brake unit, the VDC function performs control (boost operation).
- When a malfunction occurs in the DC/DC-J/B and 12V battery, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, brake warning lamp (red) and the brake system warning lamp (yellow) turns ON.
- When a malfunction occurs in the electrically-driven intelligent brake and in the VDC function, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, the brake warning lamp (red) and brake system warning lamp (yellow) turn ON.
- When a malfunction occurs in the brake power supply backup unit, the brake system warning lamp (yellow)
turns ON.
- When a malfunction occurs in the electrically-driven intelligent brake, VDC function, and power system, cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace
Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)] are not performed.
- Brake warning lamp (red) and brake system warning lamp (yellow) in combination meter turn ON when a malfunction occurs in system (electrically-driven intelligent brake unit). The control is suspended for cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)].
The vehicle status becomes the same as models without cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)].
- IBA indicator lamp in combination meter turn ON when a malfunction occurs in system (ADAS control unit).
The control is suspended for Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)]. The vehicle status becomes the same as models without
Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)].

CAUTION:
Lamp ON condition of IBA OFF indicator lamp is that IBA OFF switch is in the pressed and not turned ON status.
- Mode is fixed to the mode when a malfunction occurs if CAN communication malfunction (DTC "U1000", DTC "U1010", DTC "U0424") occurs between ADAS control unit and A/C auto AMP. The mode is fixed to
STANDARD mode after ignition switch turns OFF to ON.










*: This is DTC that is detected in ADAS control unit side.