Antriebssystem für Nutzfahrzeuge

摘要

The vehicle has a drive axle with wheels (88,90) driven by generator-operated (76) electric motors (80,82), and a steering axle with wheels driven by steering actuators (52). It also has manual actuators (12,14,19,20) for steering and speed. A process computer has parallel and independant function modules (26,28,30,32,34,35,36) for high-priority signals from the actuators, e.g. steering wheel, and for low-priority signals from other actuators, e.g. speed indicator. The process computer also issues set values for associated actuator systems, e.g. electric motors and steering actuators (72), as signals via a system bus (40). The calculated results of individual function modules are interchanged and compared in the computer, to improve real-time behaviour of the system.