Motive drive for an agricultural working machine with control of the driving speed, when driving on roads

摘要

Motive drive for an agricultural working machine with control of the driving speed, when travelling on roads with a diesel engine (1) as a central drive source, a variable displacement pump (3) and at least one hydraulic motor (5), in which the delivery volume of the variable displacement pump (3) and thus the speed of travel during road travel from the current position of an accelerator pedal (7) is dependent on. The rotational speed of the diesel engine (1) is connected via an electronic accelerator pedal (7) can be controlled. The drive mechanism is composed of an electrically adjustable in its delivery volume, with the diesel engine (1) drivingly connected variable displacement pump (3), an electro-hydraulic in its absorption volume adjustable motor and two electrohydraulically in its absorption volume switchable motors. - Forward and reverse travel is indicated by full deflection of the drive lever (11) is determined. The rotation speed change is electronically with a tachogenerator is measured and the delivery volume of the variable displacement pump (3) correspondingly increased or the displacement volume of the variable displacement pump (3) in accordance with the measured rotational speed is reduced.