Method, control device and drive group for preventing undesired travelling of a work machine in a wrong direction, and work machine

Abstract

A method is described for preventing undesired travelling of a work machine (14) in a wrong direction, wherein the work machine (14) has an electric machine (2) for propelling the work machine (14). A desired direction of travel (FRW) of a driver of the work machine (14) is sensed (S1) and a state variable of the work machine (14) that correlates with an actual direction of travel of the work machine is sensed (S2). Furthermore, on the basis of a comparison of the sensed desired direction of travel (FRW) and the sensed state variable of the work machine, it is identified (S3) whether the electric machine (2) is in a safety-critical state. Then, if it has been identified that a safety-critical state exists, a signal is sent (S4) to the electric machine (2) to transfer the electric machine (2) into a state not suitable for propulsion. Furthermore, a control device (4) is described, which is designed to carry out such a method. In addition, the invention relates to a drive group (6) having such a control device (4), and to a work machine (14) having such a drive group (6).

Dependencies are inferred from the claim text.