Control process required in a mobile hydraulic drive system — with a specific (mechanical or electronic) relationship between the accelerator pedal position and the movement velocity — where a particular movement (e.g. movement velocity) is supposed to be smaller than would be expected for the motor speed, which is needed in turn, however, for another movement (e.g. the forks on forklift trucks). This control process — known as creeping motion — uses an additional pedal (creep pedal), which controls the scale of the reduction in velocity by pivoting back the traction drive pump at full rotation speed. Creeping motion can act on the brake if the creep pedal is used to cancel the brake pressure (again via the pivoting angle associated with the pump).
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