Patent
Electronically controlled throttle control system
Tsugio Tomita,Syuuichi Nakano,Koichi Ono,Mitsuru Watabe +3 more
- 21 Feb 2002
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TL;DR: In this paper, the throttle valve is operated independently of the engine control system, and abnormal engine behavior is ensured to be detected such that a necessary fail-safe operation should be taken.
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Abstract: Even in such an arrangement in which the throttle valve is operated independently of the engine control system, abnormal engine behavior is ensured to be detected such that a necessary fail-safe operation should be taken. The arrangement of the invention is comprised of the electronically controlled throttle system, engine control system and engine speed monitoring unit, wherein the electronically controlled throttle system is allowed to monitor engine behaviors. Thereby, in the case when the throttle valve is operated independently of the engine control system, if its engine behavior becomes abnormal relative to its drive contents, the engine system senses the abnormality, and takes a fail-safe operation such as to stop operation of the throttle valve and the like.
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Citations
Patent
Ice-breaking, autozero and frozen throttle plate detection at power-up for electronic motorized throttle
Jeffrey R. Hedrick,Ross D. Pursifull,Chang Yang +2 more
- 16 Jan 2004
TL;DR: In this article, the presence of an obstruction, such as ice, is detected inside the motorized throttle and the obstruction is removed within a predetermined time to free the motorised throttle.
16
Patent
Electronic control system with malfunction monitor
Yano Masato
- 22 Jun 2006
TL;DR: In this article, an electronic control apparatus for a vehicle consists of a microcomputer and a monitor module, and the controller monitor works to monitor the validity of a monitor subject associated with an operation of the actuator controller based on a value computed by the microcomputer.
13
Patent
Powered default position for motorized throttle
Jeffrey R. Hedrick,Ross Dykstra Pursifull,Chang Yang +2 more
- 04 Mar 2003
TL;DR: In this article, a method to control the position of a throttle valve in the presence of a fault is proposed, which works independently of throttle position in an open-loop mode.
11
Patent
Electronic control apparatus for vehicle and diagnosing method thereof
Motoki Tatsumi,Kazuhiko Abe,Mitsuhiko Yokohama Kubota +2 more
- 19 Jan 2007
TL;DR: In this paper, an electronic control apparatus for a vehicle having an engine control unit 114 controlling an electronically-controlled throttle of an engine and a valve control unit 141 controlling a variable lift mechanism that varies a lift amount of an intake valve is provided.
11
Patent
Throttle system abnormality determination apparatus
Hiroshi Okumura
- 20 Dec 2004
TL;DR: In this article, an abnormality determination apparatus of a throttle control system calculates an integrated value of a deviation between an actual throttle angle and a target throttle angle, which is used to determine existence or nonexistence of an anomaly in the throttle control systems.
9
References
Patent
Abnormality diagnostic system for internal combustion engines
Fumio Hara,Masahiko Yakuwa +1 more
- 25 Mar 1993
TL;DR: In this article, a diagnostic system for an internal combustion engine which detects abnormalities of input/output objects used in controlling operation of the engine when the engine is in respective predetermined operating conditions, and carries out respective predetermined fail-safe actions when abnormalities of the input or output are detected.
33
Patent
Method and arrangement for controlling a drive unit of a motor vehicle
Albrecht Clement,Manfred Homeyer,Frank Plagge,Torsten Bauer +3 more
- 08 May 1998
TL;DR: In this article, a method of controlling a drive unit of a motor vehicle where the drive unit is controlled in dependence upon at least one operating variable is presented. But this method requires the measurement devices to be mounted so that they move in synchronism with each other within a predetermined tolerance.
30
Patent
Control apparatus for internal combustion engine with electronically-controlled throttle system
Kenichi Machida,Masahiro Iriyama,Hideki Hyoudou,Masaru Mizuguchi,Mikio Nozaki +4 more
- 27 Aug 1999
TL;DR: In this paper, a sensor-failure detection and fail-safe system comprises a duplex failsafe system for the throttle-position sensor system and an accelerator position sensor system, to provide superior failsafe functions despite the presence of a throttle position sensor failure and/or an accelerator sensor failure.
27
Patent
Engine idle speed controller
Takahashi Nobutaka,Yoshitaka Yokohama-shi Kanagawa Deguchi +1 more
- 25 May 1998
TL;DR: In this article, a target idle speed is used as an engine speed parameter in place of the actual engine speed to calculate intake air, so that the engine speed is not decreased by a disturbance for very long.
27
Patent
Throttle control apparatus for an internal combustion engine
Shigeru Kamio,Hitoshi Tasaka,Mitsuo Hara,Masashi Kiyono +3 more
- 22 Oct 1993
TL;DR: In this paper, an electrical drive unit was used to drive a throttle of an internal combustion engine and a mechanical drive unit for driving the throttle through the operation of an accelerator by a driver.
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