Development of a real-time capable high-pressure control with self-diagnosis for mobile applications up to 60 MPa (EeHsmA)

Following the successful completion of the Line-Traction 3 drive technology project and the functional verification of the system as a torque splitter gearbox, it is now possible to actively preset the torque ("torque vectoring") or the wheel speed for each individual wheel. The latest project builds on the experience and results with this drive technology and develops it further. The existing unit is to be further optimized in the installation space, e.g. by allowing higher system pressures. The actuation in the hydrostatic part is also being revised. By monitoring e.g. speeds and other variables from the vehicle's bus system, it is possible to switch between pressure and volume flow control as required. This means that the speed or torque at the wheel can be influenced individually at any time. With the help of model-based vehicle tests, a suitable operating strategy can be found for each generic vehicle type, despite the high variance of different drivetrain topologies and steering systems of mobile machines.