Patent
Automatic speed control systems
Kenneth Bruce Caldwell,Kenneth Beddow Beddow +1 more
- 04 Jul 1981
79
TL;DR: In this article, a pneumatic piston-cylinder assembly and connecting linkage are used to adjust the position of a diesel engine injection pump control rack in dependence on position of the driver's accelerator pedal and also on a system for automatically maintaining vehicle speed at a desired value.
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Abstract: Linkage is disclosed for adjusting the position of a diesel engine injection pump control rack in dependence on the position of the driver's accelerator pedal and also on a system for automatically maintaining the vehicle speed at a desired value. The injection pump rack is positioned by means of a pneumatic piston-cylinder assembly and connecting linkage. The pressure in the piston-cylinder assembly is adjusted by means of a driver-controlled valve in a supply line from a pressure source, and this valve is adjusted by the driver's accelerator pedal. A normally open valve is also connected in the pressure circuit and a normally closed exhaust valve is provided. When the automatic speed control system is in operation, the driver fully opens the driver-controlled valve (by fully depressing his foot pedal) and the automatic system adjusts the other valves to hold the speed at the desired value. When the driver releases his foot pedal, the driver-controlled valve shuts, preventing the automatic speed control having any further effect on engine power.
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Citations
Patent
Control of vehicular systems in response to anticipated conditions predicted using predetermined geo-referenced maps
John D. Watt,Richard E. McMillen,Gerald E. Salzman,Jesse H. Orsborn,Stephen M. Faivre,James G. Morrow,Peter J. Vogel +6 more
- 09 Jun 1998
TL;DR: In this paper, a control system for controlling a vehicle system at least partly in response to an anticipated condition along the vehicle's course of travel is disclosed, where the vehicle includes a drive train powered by an engine, and the anticipated condition may affect engine load.
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96
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93
References
Patent
Electronic speed control system for vehicles
Naoji Sakakibara,Takeshi Nakane +1 more
- 31 Oct 1973
TL;DR: In this article, an electronic vehicle speed control system compares a memorized reference signal, corresponding to a desired speed, with an actual speed signal to control a vehicle throttle, and the circuit is so constructed and arranged that the throttle will be moved through a greater range, and thus with increased sensitivity, for equal variations between actual and desired speeds when the desired speed is set at a higher value than when it is set a lower value.
30
Patent
Speed control system for an automotive vehicle
Elliott Josephson,Zbigniew J Jania +1 more
- 09 Mar 1973
TL;DR: In this article, an electronic speed control system for an automotive vehicle that is driven by a propulsive means, preferably in the form of an internal combustion engine, the speed of which is controlled by a throttle means.
30
Patent
Throttle control device for motor vehicles
John E Gilligan
- 11 Feb 1974
TL;DR: In this article, a device was proposed to automatically control the road speed of a motor vehicle to a predetermined maximum, such control being accomplished through the medium of instrumentalities associated with the engine throttle rod and operative to vary its effective length in response to the motor vehicle attaining such maximum road speed.
26
Patent
Vehicle speed control systems
John Noddings,Roland Kenneth Borton +1 more
- 27 Apr 1979
TL;DR: In this article, a vehicle speed system is described in which an electrical signal representing actual vehicle speed is compared with a stored signal representing desired vehicle speed, and signals representing the actual and desired vehicle speeds are compared in a comparator unit.
23
Patent
Idle speed controller
Carl K. Dudley,William J. Roberts +1 more
- 08 Jun 1981
TL;DR: In this article, an idle speed control system for an internal combustion engine, to conserve fuel by allowing a lowered idle speed, whenever possible, as well as offering more than normal power when needed, is disclosed.
22