System Description

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: SYSTEM DESCRIPTION

1. FUNCTION DESCRIPTION

(a) Electronically Controlled Brake System

(1) Upon receiving signals from the skid control ECU, this system effects hydraulic pressure control at the four wheels.

(b) Regenerative Brake Cooperative Control

(1) Controls hydraulic braking in order to recover electrical energy by utilizing the regenerative brake of the hybrid control system as much as possible.

(c) Enhanced-VSC (Cooperative Control with EPS)

(1) Effects cooperative control with the power steering ECU in order to provide steering assist in accordance with the operating conditions of the vehicle.

(d) Anti-lock Brake System (ABS)

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

(e) Electronic Brake force Distribution (EBD)

(1) The 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.

(f) Brake Assist (BA)

(1) The primary purpose of brake assist is to provide an auxiliary brake force to assist a driver who cannot generate a large brake force during emergency braking, thus helping draw the vehicles braking performance.

(g) Traction Control (TRAC)

(1) The TRAC 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.

(h) Vehicle Stability Control (VSC)

(1) The VSC helps restrain sideways slippage of the vehicle during a strong front wheel skid or strong rear wheel skid, during cornering.

(i) Hill-start Assist Control

(1) When the vehicle starts off on a steep or a slippery hill, Hill-start Assist Control performs 4-wheel hydraulic pressure control to prevent the vehicle from moving backward.

2. FUNCTION OF COMPONENTS









*1: w/ Dynamic Radar Cruise Control System