Power plants – Pressure fluid source and motor – Methods of operation
Patent
1996-06-19
1997-05-13
Lopez, F. Daniel
Power plants
Pressure fluid source and motor
Methods of operation
60445, 60448, 60449, 60452, F16D 3102
Patent
active
056281870
ABSTRACT:
A method for putting into operation a vehicle with an electronically controlled automotive hydrostatic transmission, wherein an output current of an electronic control by means of at least one proportional pressure-reducing valve is used for generating a control pressure acting upon the servo system of the variable displacement pump. The method is performed by the following steps: a) determining a limit value of a driving regime of the vehicle; b) detecting, digitizing and reading-in at least one current operational parameter of the transmission into the electronic control; c) determining and detecting at least one characteristic value of the output current of the electronic control corresponding to the value of the driving regime of the transmission to the one proportional pressure-reducing valve, and d) calculating a current characteristic on the basis of the value of the output current for achieving reproducible driving properties.
REFERENCES:
patent: 5184466 (1993-02-01), Schniederjan et al.
patent: 5406793 (1995-04-01), Maruyama et al.
patent: 5473895 (1995-12-01), Bausenhart et al.
patent: 5553453 (1996-09-01), Coutant et al.
Lopez F. Daniel
Sauer Inc.
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