Vehicle Stability Control System System Description

Multi-terrain Anti-lock Brake System (Multi-terrain ABS)
This function detects off-road driving in sand, mud, gravel, dirt and so on based on signals from the yaw rate and acceleration sensor, the speed sensor and the ECM, and then automatically switches to the ABS control most appropriate for the current road conditions.

EBD (Electronic Brake Force Distribution)
EBD control utilizes the ABS and performs proper brake force distribution between the front and rear wheels in accordance with the driving conditions. When the brakes are applied while cornering, it also controls the braking forces of the right and left wheels, helping to maintain vehicle stability.

BA (Brake Assist)
The primary purpose of the brake assist system is to provide auxiliary brake force to assist drivers who cannot generate a brake force large enough during emergency braking, thus helping to maximize the vehicle's braking performance.

VSC (Vehicle Stability Control)
The VSC system helps prevent the vehicle from slipping sideways when front or rear wheel skidding occurs while cornering.

A-TRC (Active Traction Control)
During rugged off-road driving, this system controls the engine output and the brake fluid pressure that is applied to the slipping wheel and distributes the drive force that would have been lost through the slippage to the remaining wheels in order to achieve an LSD (Limited Slip Differential) effect.

Hill-start Assist Control
When the vehicle starts off on a steep hill, hill-start assist control detects the backward descent of the vehicle and performs 4-wheel hydraulic pressure control to reduce the speed of the vehicle.

HINT:

1. Depressing the brake pedal cancels control of the hill-start assist control system.
   
2. The system does not operate when the shift lever is in P or N, or when the vehicle is being driven/rolling back up a slope with the shift lever in R.
   

CRAWL (Crawl Control)
Crawl Control is a system that provides assistance when driving on bumpy off-road surfaces, slippery road surfaces, etc. When Crawl Control is operating, the engine output and braking force are controlled automatically to enable driving while maintaining a constant speed. As a result, the driver can concentrate on steering the vehicle without having to operate the accelerator and brake pedals very much.

Turn Assist Control
When the driver is attempting to go around a tight corner and the steering wheel needs to be turned quickly in the opposite direction, the turn assist function recognizes the intent of the driver using the value from the steering angle sensor and raises the brake fluid pressure applied to the brake of the rear inner wheel to increase the turning ability of the vehicle and help reduce the number of times the steering wheel has to be turned.
Turn assist control can operate during automatic driving under Crawl Control.

Multi-terrain Select Control (w/ Multi-terrain Select)
When multi-terrain select control is active, A-TRC brake control most appropriate for the selected road mode are performed automatically. In this way, superior off-road driveability is achieved.

Trailer Sway Control
If the vehicle is towing a trailer with an inappropriate hitch load, trailer sway could be caused by crosswinds, imbalance caused by load, or the driver's steering. Trailer sway control reduces trailer sway by controlling the engine output and the braking of each wheel.