Power plants – Pressure fluid source and motor – Condition responsive control of or by input to input pump...
Patent
1982-03-17
1984-05-01
Walton, George L.
Power plants
Pressure fluid source and motor
Condition responsive control of or by input to input pump...
60448, 74861, 74865, 180170, 180307, F16H 3946
Patent
active
044453299
ABSTRACT:
There is disclosed a throttle control means connected to the throttle which in response to operator input puts the throttle in one of two positions, the first fully open and the second an idle position, a transmission control system including desired speed input means responsive to operator input producing a signal indicative of the drive wheel speed desired by the operator, actual speed means connected to the drive wheels for generating a signal proportional to the road speed of the vehicle, comparing means connected to the desired speed and actual speed means and to the transmission for comparing the desired speed means and the actual speed means and, responsive to results from such comparing, generating a control signal changing the output-to-input speed ratio of the transmission. The transmission control system is arranged and connected to be effective, when the throttle control means puts the throttle in full open position, to increase the output-to-input speed ratio of the transmission whenever the drive wheel speed is more than the indicated desired speed and to reduce the output-to-input speed ratio of the transmission whenever the drive wheel speed is less than the indicated desired speed.
REFERENCES:
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patent: 3031848 (1962-05-01), Kane et al.
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patent: 3927528 (1975-12-01), van der Kolk et al.
patent: 3943713 (1976-03-01), Walton
patent: 4023641 (1977-05-01), Ganoung
patent: 4091690 (1978-05-01), Miyao
patent: 4191270 (1980-03-01), Monteith
Hulbert W. R.
Walton George L.
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