Motor vehicles – Steering by driving – Independently operable drive motors
Patent
1997-04-09
1999-01-19
English, Peter C.
Motor vehicles
Steering by driving
Independently operable drive motors
60443, 60484, 91522, B62D 1104
Patent
active
058604847
ABSTRACT:
Hydraulic device for directional control of a vehicle using a single lever. The device includes a hydraulic manipulator (1) with four outlets, forward/reverse and right/left. A selection device (4) with four selectors (5) in a bridge is connected to the manipulator, and the outputs are connected to four motors for reverse-left, forward-left and reverse-right and forward-right control of the running components of the vehicle. A slide valve (7) with two positions, respectively one with direct connections and one with crossed connections, is inserted into the two feed lines of the motors (6 AVG, 6 AVD or respectively 6 ARG, 6 ARD). A control input (10) of the slide valve is connected to the FORWARD and REVERSE outputs of the manipulator, by virtue of which the control of the vehicle remains fully ergonomic, including for a rotation of the vehicle about a central vertical axis.
REFERENCES:
patent: 4076090 (1978-02-01), Krushce et al.
patent: 4457387 (1984-07-01), Taylor
English Peter C.
Mannesmann Rexroth S.A.
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