Patent
Controlling device for non-stage transmission for vehicles
Akio Kobayashi,Hiroshi Tanaka,Shoji Yamashita,Yasumasa Fujita,Koichi Hikichi,Chiaki Kumagai +5 more
- 31 Jul 1989
26
TL;DR: In this paper, the transmission ratio of a non-stage transmission in a vehicle is controlled according to a forecast output power of the vehicle, such as atmospheric pressure, and an engine speed is controlled so that the engine speed may not exceed a predetermined rotational speed when the transmission gear ratio is fixed.
read more
Abstract: A controlling device for controlling the transmission ratio of a non-stage transmission in a vehicle. The transmission ratio is controlled according to a forecast output power of the vehicle. The output power is forecast based on an operating condition of the vehicle, such as atmospheric pressure. The control considers various operating parameters. A comparison of a predetermined ratio of increase of engine speed or throttle opening with actual ratios of increase of engine speed or throttle opening may be made in controlling the transmission ratio. An uneven road surface is detected and a transmission ratio of the transmission is controlled accordingly to substantially eliminate hunting. An engine speed is controlled so that the engine speed may not exceed a predetermined rotational speed when the transmission gear ratio is fixed. A target engine speed or target transmission ratio is corrected in response to an output signal of a comparison device which compares an actual vehicle velocity with a set vehicle velocity during automatic fixed vehicle velocity running.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
Charles B. Lohr,John W. Sherrill,Pohl Brad P,Robert Dawson,Corey Pew +4 more
- 21 Jan 2013
TL;DR: In this article, a carrier member is configured to rotate and apply a skew condition to each of the planet axles of a traction planet assembly, and the carrier member can couple to a source of rotational power.
99
Patent
Continuously and/or infinitely variable transmissions and methods therefor
Matthew R. Bazyn,Jeremy Carter,Charles B. Lohr,Curtis W Malone,Loren T. Mcdaniel,Peter D. Poxton +5 more
- 27 Feb 2009
TL;DR: An infinitely variable transmission (IVT) has a rotatable input shaft arranged along a longitudinal axis of the transmission as discussed by the authors, where the input shaft is adapted to supply a lubricant to the interior of transmission.
83
Patent
Systems and methods for control of transmission and/or prime mover
Jeremy Carter,Pohl Brad P,Loren T. Mcdaniel,Cyril A. Keilers,Ruggles Tim,Rogers David L,Eric K. Diehl,Austin Orand,Alan Mark Delz,Paul Argus Parks,Mark Edward Bartholomew,Christopher M. Vasiliotis +11 more
- 31 Jan 2008
TL;DR: In this article, the authors present a control system for a powertrain of an electric vehicle (EV) coupled with an electric drive motor, where a control is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and its subsystems.
65
Patent
Controller for variable transmission
Stanley B. Quinn,Alan L Miller,Scott R Anderson +2 more
- 14 Nov 2008
TL;DR: In this paper, an electronic controller for a variable ratio transmission and an electronically controllable variator or other CVT is described, which can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission.
65
Patent
Continuously-variable transmission
Maurice C Terry
- 14 Oct 2008
TL;DR: In this article, a continuously variable transmission (CVT) assembly is employed for transmitting a torque from an external power source to a power source. And the CVT assembly includes a variable-diameter input pulley and a variable diameter output pulley, each having a respective range of adjustment.
61
References
Patent
Control system and method for controlling output type hydraulic fluid pump of automatic transmission providing increased pump output pressure with increase in engine load
Nakamura Shinya,Seitoku Kubo,Yutaka Taga +2 more
- 08 Oct 1985
TL;DR: In this article, an automatic transmission with an engine includes a hydraulic fluid pump which supplies pressurized hydraulic fluid, and the pump output is controlled by detecting the eccentric position of the controlling member using a sensor, and by varying this eccentric position in a feedback manner to achieve a target eccentric position which is determined to give a pump output per one revolution varying as an increasing function of engine load.
22
Patent
Automatic transmission control system for an automobile
Ina Toshikazu,Hisasi Kawai,Syuzaburo Tashiro,Hideki Obayashi,Kohama Tokio +4 more
- 01 Aug 1984
TL;DR: In this article, the speed change ratio of a transmission is determined and adjusted in response to a signal which is proportional to the detected intake air flow rate and inversely proportional to engine speed.
22
Patent
Swash plate type hydraulic system
Tsutomu C,Yoshihiro C O Kabushi Nakajima,Nobuyuki C,Masaie C O Kabushiki Kais Kato,Masaie C,Tsutomu C O Kabushiki Hayashi,Kazuhiko C,Kazuhiko C O Kabushik Nakamura,Yoshihiro C,Yoshihiro Yoshida,Yagigaya Nobuyuki,Mitsuru C,Mitsuru C O Kabushiki Ka Saito +12 more
- 20 Jan 1987
TL;DR: In this paper, a group of cylinder bores in which plungers engaging a swash plate are slidably received are annularly arranged in a cylinder block, and higher and lower pressure oil passages are concentrically provided in the cylinder block.
22
Patent
Transmission monitor/control microprocessor for continuously variable power train
Charles R. Cornell
- 11 Jul 1983
TL;DR: In this article, a transmission monitor/control microprocessor is used to automatically adjust the effective drive reduction ratio of a power train of the type in which such transmission is variable by step change or continuously, such as for use in farm tractors.
21
Patent
System for utilizing the negative torque of a power delivery system having a continuously variable ratio transmission for braking
Oomitsu Takashi
- 30 Sep 1985
TL;DR: In this paper, a control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT), is presented.
20
Related Papers (5)
Hirofumi Kubota,Isao Takagi +1 more
- 08 Mar 2001
Alexander Vlock
- 23 Nov 1994
[...]
Jacques Shelly
- 02 Jul 1974
[...]
Timber Dick
- 14 Feb 1979