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
46
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.
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Abstract: 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 A control unit accepts all the foregoing parameters, and logically combines the parameters to provide an output to control the transmission ratio, and flow of hydraulic fluid in the hydraulic transmission, for example by appropriate setting of the swash, or wobble plate of swash plate hydraulic engines in accordance with characteristic transfer functions of the sensed parameters with respect to signals as actually derived and representative of the sensed parameters
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Citations
Patent
Vehicle power transmission arrangements and electronic power controls
Julian Robert Anthony Beale
- 24 Feb 1977
TL;DR: In this article, an electronically controlled transmission arrangement for an internal combustion engine driven vehicle such as a private automobile is presented, permitting operation under normal conditions close to regions of minimum specific fuel consumption while also permitting bringing an engine in poor operating condition close to its maximum power speed.
91
Patent
Semi-automatic mechanical transmission control and control method
Michael William Dunkley,John Ernest Stainton +1 more
- 08 Nov 1988
TL;DR: In this article, a control system and a method for a semi-automatic mechanical transmission system allowing operator request for a direct downshift into transmission neutral, under certain predefined conditioned conditions, by a single movement of the shift lever is described.
86
Patent
Automatic transmission line pressure control
William J. Vukovich
- 02 Jul 1979
TL;DR: In this paper, a line pressure regulator for a vehicular, automatic shift, multi-gear ratio transmission is developed as a function of engine throttle and vehicle speed, and the signal is continually modified by a stored correction amount.
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
Apparatus for controlling the operation of the engine-transmission assembly of a motor vehicle
Erich Schneider,Helmut Fleischer,Helmut Rembold,Alexander Witte +3 more
- 07 Dec 1978
TL;DR: In this article, the engine is controlled by sensing fuel pedal position, indicative of desire engine power, and a characteristic transmission data field is used to select the appropriate gear or gear ratio.
75
References
Patent
Hydrostatic transmission and control therefor
Edward G Metcalfe,Robert E Yapp +1 more
- 19 Jan 1966
21
Patent
Shift shock preventive device for motor vehicle fuel injection system
TL;DR: In this paper, a shift shock preventing device was incorporated into a fuel injection system of a motor vehicle having an automatic transmission, which comprises a differentiator electrically connected to solenoid valves hydraulically coupled to the transmission friction elements, and a transistor switching circuit connected to a computing circuit of the fuel injected system and adapted to be rendered conductive upon receipt of the upshift signal to incapacitate the computing circuit from generating an injection pulse, thereby preventing an instantaneous increase in engine speed which would otherwise invite a shift-shaking during upshifting.
18
Patent
Pressure control system
TL;DR: In this paper, a slow or "''"creep'' speed arrangement is provided for systems having an internal combustion engine to drive a pump which in turn drives a hydraulic motor.
17
Patent
Electronic control devices for multistage gear boxes
R Ravenel
- 05 Mar 1971
TL;DR: In this article, an electronic computer for producing an injection control signal whose duration determines the time of opening of the injectors is arranged so that the signal acts as a function of its duration, on a one or more thresholds of at least one threshold detector sensitive to the rotary speed of the engine and adapted to control the gear changes.
17
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