Brake And Stability Control System Description And Function (Including Redundancy System)
Components:
- Integrated dynamic brake module (IDB) with brake pedal
- Brake pedal angle sensor
- Wheel speed sensors
- Steering angle sensor
- Yaw rate sensor
- Redundancy control unit
Components:
Redundancy System
Technical Description:
The ESC system provides a stability control for the vehicle and is integrated into the IDB.
The ESC system includes the base functions of the ABS system.
These functions include ABS, BED.
Anti-lock braking system (ABS) prevents the wheels from locking/sliding during braking by pulsing the braking power, so that the wheels continue to rotate and do not lock/slide.
It can reduce the braking distance and allow the vehicle to be steered during emergency braking, as the wheels continue to rotate and have traction with the road surface.
Electronic brake force distribution (BED) can adjust the amount of brake pressure applied to the front and rear axles of the vehicle. This helps to maximize the braking performance of the vehicle under different operating conditions.
ESC is designed to maintain vehicle maneuverability and improve directional stability even during emergency braking, improving driving safety.
ESC can correct the direction of vehicle motion if side slipping is detected.
It does this by braking one or more wheels, causing the vehicle to generate a torque (and turn) opposite to the undesired vehicle rotation.
The ESC system detects understeer or oversteer through the angle sensor, the lateral acceleration sensor and the wheel speed sensors.
The redundancy control unit is a control unit that controls the electric handbrake via an electrical, and not a hydraulic connection.
For more Information see " PARK BRAKE SYSTEM DESCRIPTION AND FUNCTION ".
Schematic Diagram
The integrated dynamic brake module (IDB) controls these braking safety functions.
The IDB system communicates with the XGW, ADAS, RCU, EPS, YSS, VCU via the CAN.
Operation: (Use Cases)
Turn off electronic stability control (1)