Vehicle power control system

Details Vehicle power control system Vehicle power control system

1980-04-14

1982-07-06

Crowder, Clifford D.

Excavating

Peat excavators

37DIG1, 60449, 60468, E02F 506

Patent

active

043375871

ABSTRACT:
An automatic horsepower control system on a working vehicle which varies the vehicle drive speed so as to maintain a maximum torque output on the working function of the vehicle. The prime mover of the vehicle drives the work function and also a pump which in turn supplies motor-driven wheels for moving the vehicle. A servo-control valve varies the pump flow to the motor to change vehicle speeds, said valve being signaled by an electronic controller which compares the prime mover's RPM with a standard to determine the torque load from the work function, and accordingly signals the valve to increase or decrease the flow to the motor to adjust vehicle speed and maintain a constant work load on the prime mover.

REFERENCES:
patent: 3750762 (1973-08-01), Eaton
patent: 3999386 (1976-12-01), Crull et al.
patent: 4180979 (1980-01-01), Cornell
patent: 4218957 (1980-08-01), Underwood

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