- controllability of the car during emergency braking;
- stopping the car during emergency braking without leaving the selected trajectory.
If a malfunction is detected in the system, the malfunction is diagnosed and the safety mode is activated, the braking system works as standard.
The hydraulic and electronic control unit receives signals from sensors for vehicle speed, road surface condition, direction of travel and wheel speed.
The electronic control unit determines the optimum wheel speed.
Electronic brake force distribution (EBD)
The use of an electronic brake force distribution system, in comparison with the installation of a proportional valve, ensures an ideal distribution of pressure in the front and rear brake circuits. As a result, braking performance is noticeably improved and the rear wheels are prevented from locking up.
Benefits of e-Governance
Functional improvement of the parameters of the main braking system.
Compensation for different coefficients of adhesion of the wheel to the road.
Exclusion of the installation of a proportional valve.
Fault indication with warning lamp.
Comparison of brake force distribution characteristics
Pic. 6.63. Comparative characteristics of the distribution of braking forces
Comparative characteristics of the distribution of braking forces are shown in fig. 6.63.
Checking the hydraulic and electronic control unit ABS
Checking the hydraulic and electronic unit (ABS) see table 6.7.
I/O diagram of the ABS electronic control unit (HECU)
Pic. 6.64. ABS connector
Pic. 6.65. ABS I/O Diagram
The input-output diagram of the ABS electronic control unit is shown in fig. 6.65.