Patent
Total power fluid system
Fletcher Edward Horton,Gordon K. Wiegardt +1 more
- 15 Apr 1977
45
TL;DR: A total fluid power system for an engine powered vehicle includes an engine driven, variable displacement pump, a pair of variable displacement wheel motors and auxiliary functions as discussed by the authors, and a transducers sense engine speed, pump output pressure and motor speeds to supply signals to pump and motor controls which process the signals with operator input signals.
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Abstract: A total fluid power system for an engine powered vehicle includes an engine driven, variable displacement pump, a pair of variable displacement wheel motors and auxiliary functions. Transducers sense engine speed, pump output pressure and motor speeds to supply signals to pump and motor controls which process the signals with operator input signals to maintain pump and motor displacements for optimum engine power usage and desired vehicle performance.
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Citations
Patent
Fuel-efficient energy storage automotive drive system
Vincent E. Carman,David H. Anderson,Eugene F. Lucas +2 more
- 04 Sep 1980
TL;DR: In this paper, a fuel saving energy storage vehicle drive system for stop-and-go driving conditions is presented by collecting, storing and using energy normally lost in braking or deceleration of the vehicle, by automatically controlling operation of the engine under certain conditions, and by automatically controlled use of stored energy and engine respectively as alternative or supplemental prime movers for each other for driving the vehicle.
131
Patent
Hydrostatic vehicle control
Randall M Mitchell,John T. Armstrong +1 more
- 09 Jul 1984
TL;DR: An apparatus for controlling both pump displacement of a variable displacement hydraulic pump and the quantity of fuel delivered to an internal combustion engine (16) for the purpose of delivering a requested hydraulic flow at a highly efficient operating point is described in this paper.
77
Patent
Hydraulic power control system
Michael S. Lukich
- 23 Dec 1993
TL;DR: In this article, a method and apparatus for controlling a hydraulic implement control system to control engine lug while the hydraulic system is operating is described, and the apparatus includes one or more sensors for producing parameter signals in response to the level of a hydraulic system operating parameters.
75
Patent
Circuit pressure control system for hydrostatic power transmission
Eiki Izumi,Hiroshi Watanabe,Yukio Aoyagi,Kazuo Honma,Kichio Nakajima +4 more
- 03 Jun 1981
TL;DR: In this paper, a circuit pressure control system for a hydrostatic power transmission having a variable-displacement hydraulic pump driven by a prime mover, a hydraulic actuator for actuating a load and a displacement adjusting mechanism for the hydraulic pump is presented.
53
Patent
Method and apparatus for controlling hydraulic systems
Bengt S. Backe,La Moyne Warner Durham +1 more
- 04 Sep 1984
TL;DR: In this paper, a control system is provided for a hydraulic actuating system having a multi-phase stepping motor with a driver therefor which supplies and controls DC current through each of the motor windings such that no current is induced into the control winding from adjacent windings.
52
References
Patent
Electrical hydrostatic transmission control system
Charles R. Cornell,Gerald F. O'callaghan +1 more
- 20 Aug 1974
TL;DR: In this paper, an improved straight tracking control apparatus is presented to control the operation of a plurality of hydrostatic transmissions which are advantageously utilized to drive the tracks of a vehicle.
52
Patent
Control system for internal combustion engine and variable transmission power train
Karl-Heinz Dipl Ing Adler,Ulrich Aldinger,Tilman Kiess,Reinhard Mindner,Peter Muehlich,Hans-Juergen Van Der Dr I Kolk +5 more
- 14 Aug 1974
TL;DR: In this article, the power transfer of power developed in an internal combustion engine, connected to a variable ratio transmission and more particularly to a hydraulic transmission including a hydraulic pump, or compressor, in a hydraulic circuit with a hydraulic motor, is controlled by obtaining signals representative of engine controller position, engine output torque (that is, transmission input torque), transmission output torque, engine speed, and effective ratio of speed (or torque) transmitted by the transmission from the engine to the transmission output.
46
Patent
Hydrostatic transmission control system
Kenneth K. Knapp,Dennis Dale Simpson,Charles R. Cornell +2 more
- 28 Feb 1974
TL;DR: In this paper, an improved HST control system includes electrical control circuitry for effecting operation of a hydraulic motor to vary the effective displacement of a pump unit of a HST. The control circuitry includes a potentiometer which provides a signal indicative of the actual displacement of the pump unit.
39
Patent
Control mechanism for hydraulic transmissions and pumps
Thoma Hans
- 04 May 1936
TL;DR: In this article, an improvement in control mechanism for hydraulic transmissions and pumps is described, which has for an object to provide improved means for regulating such devices, particularly to prevent overloading, and another object is to provide pressure regulated means for this purpose in combination.
34
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