Features

• Active chassis control system to increase driving comfort and safety
• Active leveling and damping regulation depending on the condition of the road, manner of driving and driver input
• Compensation of pitching and rolling motions
• Dual-computer microcontroller concept
• E-box control unit
• Diagnosis (ISO K-lines) and CAN-bus interface

Principle of operation

ABC is the abbreviation for Active Body Control. The system is designed to regulate the degrees of freedom of the vehicle:

• Rolling motions
• Pitching motions
• Leveling constancy
• Damping

The vehicles are equipped with special struts for this purpose. So-called plungers are installed in addition to the existing conventional elements of springs and dampers. These plungers can be used to influence the charactersitics of the (weaker constructed) dampers and springs.

Since a considerable computing performance is demanded by the above tasks, the control unit is designed in a dual computer concept.

The system achieves a fully active chassis control. Parallel to the normal function algorithm, an extensive part of the software derived from specified safety user requirements is applied for error detection, reaction, and corrective measures.