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Antilock Brakes / Traction Control Systems: Description and Operation







BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: SYSTEM DIAGRAM; 2013 MY FR-S [03/2012 -]

















*: for Automatic Transmission

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: SYSTEM DESCRIPTION; 2013 MY FR-S [03/2012 -]

1. FUNCTION DESCRIPTION

(a) Anti-lock Brake System (ABS)

(1) Helps prevent the wheels from locking when the brakes are applied firmly or when braking on a slippery surface.

(b) Electronic Brake force Distribution (EBD)

(1) EBD control utilizes ABS, realizing proper brake force distribution between the front and rear wheels in accordance with the driving conditions. In addition, during braking while cornering, it also controls the brake forces of the right and left wheels, helping maintain vehicle behavior.

(c) Brake Assist (BA)

(1) The primary purpose of brake assist is to provide supplementary brake force to assist a driver who cannot generate a large brake force during emergency braking, thus helping ensure the vehicle's braking performance.

(d) Traction Control (TR(A)C)

(1) Helps restrain the slippage of the drive wheels if the driver depresses the accelerator pedal excessively when starting off or accelerating on a slippery surface.

(e) Vehicle Stability Control (VSC)

(1) Helps restrain sideways slippage of the vehicle during a strong understeer tendency or strong oversteer tendency while cornering.

(f) Limited Slip Differential Control (LSD)

(1) The LSD function detects a difference in rotation speeds between the left and right drive wheels. If there is a difference in rotation speeds between them, this function applies brake to the drive wheel that rotates faster than the other using pressurization function of the VSC* to minimize the difference.

(2) The function makes it possible to start and accelerate the vehicle stably.

*: This function always activates regardless of ON/OFF of the VSC mode.

2. FUNCTION OF COMPONENTS





*: for Automatic Transmission