Method for operating a vehicle drive or a towing or pushing, or a towed or pushed, vehicle and vehicle provided for the method

摘要

A method for operating a vehicle drive for a towing or pushing, or a towed or pushed vehicle, is proposed in which the force produced by the load is detected at a connection point (11) to the vehicle, which connection point (11) is subjected to tensile or thrust load, a force signal is derived therefrom and the vehicle drive is controlled as a function of the force signal. The force signal is compared, as an actual value, with a force signal stored as a desired value, and the vehicle drive is controlled as a function of the deviation between the actual value and the desired value. The force signal is derived, according to an exemplary embodiment of the invention, from the pressure in a cylinder/piston unit (9) which is free of leaking oil and is subjected to tensile force or pressure force. At the same time, the pressure acts on a control valve (8) which is connected to an adjustment device (5) of a hydrostatic transmission. <IMAGE>