System Description

Brake force distribution function is controlled by ABS actuator and electric unit (control unit).
Brake force distribution function helps provide a more stable and secure feeling.

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During cornering, when brake operation is performed brake fluid pressure of each wheel is controlled based on steering operation amount by the driver and vehicle cornering status amount detected by each sensor.

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Fail-safe function is adopted. When a malfunction occurs in Brake force distribution function, the control is suspended for VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist function, hill start assist function and Brake force distribution function. The vehicle status becomes the same as models without VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist function, hill start assist function and Brake force distribution function. However, ABS function and EBD function are operated normally. Refer to Fail-safe .

NOTE: Brake force distribution function may not always be operates in all driving conditions.

SYSTEM DIAGRAM

NOTE: Steering force control module is applied to models with Direct adaptive steering system.

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INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

Component	Signal description
Steering force control module*	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Steering pinion angle signal Direct adaptive steering malfunction signal
ECM	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Accelerator pedal position signal Engine speed signal Engine torque signal Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN communication. Engine torque request signal
TCM	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Current gear position signal Shift position signal
Chassis control module	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Active trace control signal
Combination meter	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Brake fluid level switch signal Parking brake switch signal Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN communication. Brake warning lamp signal ABS warning lamp signal VDC warning lamp signal VDC OFF indicator lamp signal
Steering angle sensor	Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication. Steering angle sensor signal Steering angle sensor malfunction signal

*: Models with Direct adaptive steering system.