Motor vehicles – With means for detecting wheel slip during vehicle...
Patent
1988-08-16
1990-12-11
Mitchell, David M.
Motor vehicles
With means for detecting wheel slip during vehicle...
105 61, 36442603, B60K 1734
Patent
active
049763326
ABSTRACT:
For the drive of a vehicle having at least one driven axle, in particular a rail vehicle, a secondarily controlled hydrostatic drive is provided which is connected to a pressure network with impressed pressure. The respective travelling direction and the acceleration and retardation is set at a desired value pickup or generator which is part of a speed control circuit. The circuit arrangement according to the invention solves the problem of avoiding slipping of the drive wheels on acceleration and retardation. In addition, the determined acceleration and retardation values can be superimposed to avoid inadmissible wheel slip and obtain optimum accelerations and retardation operations. For this purpose the circuit arrangement employs a ramp former to which as control voltage various voltages proportional to different operating parameters are supplied, in particular a voltage dependent on the speed of rotation.
REFERENCES:
patent: 3893535 (1975-07-01), Burckhardt et al.
patent: 4035698 (1977-07-01), Soderberg
patent: 4116294 (1978-09-01), Johnson
patent: 4136303 (1979-01-01), Almquist et al.
patent: 4354568 (1982-10-01), Griesebrock
patent: 4399886 (1983-08-01), Pollman
patent: 4760893 (1988-08-01), Sigl et al.
Mannesmann Rexroth GmbH
Mitchell David M.
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