Continental has develped a digital electronic air spring damping system for truck cabs. The cab suspension system allows the level of the driver’s cab to be regulated electronically by using four air spring damper modules with integrated ultrasonic height and air pressure sensors as well as a control unit programmed with a special regulation algorithm.
The medium of air ensures optimum spring and damping performance. In particular, frequency-selective damping and automatic damping adjustment in response to weight changes ensure enhanced ride comfort. In combination with electronic control, the system can potentially help to optimize the behavior of the cab when the truck is in motion or stationary such as during parking.
The system also provides new functions such as cab kneeling and lifting; for example, when coupling or in the workshop. When the truck is being driven on the interstate highway, the air resistance can be reduced by lowering the entire cabin. With electronic air spring damping, intelligent software regulates the air supply electronically, which can also help to reduce fuel consumption because less compressed air is consumed.
Holger Brüning, head of the air springs for driver’s seats and cabs unit, Continental, said: “We designed this system to enhance driver comfort and safety on uneven road surfaces. It is annoying for drivers if the cab cannot be aligned straight. With our system, the driver can bring the cab into a horizontal position at the touch of a button,” says Brüning.
