Patent US5076385A successfully refreshed from Google Patents.
US5076385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle control apparatus
Assignee: Aisin Corp
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Filing: 1990-12-05
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Granted: 1991-12-31
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Expires: 2010-12-05
Abstract
Abstract A throttle control apparatus for use with an automotive internal combustion engine. The apparatus assures that the drive wheels are stopped from spinning on a snowy road surface if the driver pushes down on the accelerator pedal. The apparatus comprises an accelerator operation mechanism including the accelerator pedal, a first throttle-driving means capable of opening and closing the throttle valve, a controller, a second driving means, and a fuel-cutting means. The first throttle-driving means is mounted independent of the accelerator operation mechanism and includes a driving plate, a clutch plate, and a movable yoke. The controller controls the first throttle-driving means to adjust the throttle opening. When the first throttle-driving means becomes inoperative, the throttle valve can be driven by the accelerator operation mechanism via the second throttle-driving means. The fuel-cutting means is operated when excessive spin of the drive wheels is detected.
Inventors
- 👤 Tadashi Terazawa
- 👤 Yasuhiro Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:26
CPC Classifications
B; B60; B60K; B60K28/00; B60K28/10; B60K28/16; F; F02; F02D; F02D9/00; F02D9/08; F02D9/10; F02D9/1065
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
221 words
A throttle control apparatus comprising: an accelerator operation mechanism; a first throttle-driving means which is mounted independent of the accelerator operation mechanism and capable of opening and closing a throttle valve of a vehicle; a control means which controls the first throttle-driving means according to the operating conditions of an internal combustion engine and of the vehicle and based on a first intended throttle opening corresponding to the amount by which the accelerator operation mechanism is operated, the control means acting to set a second intended throttle opening for securing a given slip ratio and then to control the first throttle-driving means for adjusting the throttle opening when excessive spin of the drive wheels is detected on acceleration of the vehicle; a second throttle-driving means which, when the first throttle-driving means becomes inoperative and the accelerator operation mechanism is operated by more than a given amount, can directly drive the throttle valve within a given range of opening; and a driving force-limiting means which acts to limit the driving force generated by the engine to a certain level independent of the first and second throttle-driving means and to detect excessive spin of a plurality of drive wheels and which, when the throttle valve is directly driven by operation of the accelerator operation mechanism, limits the driving force generated by the engine.
Claim 2
Dependent Claim
221 words
A throttle control apparatus comprising: an accelerator operation mechanism; a first throttle-driving means which is mounted independent of the accelerator operation mechanism and capable of opening and closing a throttle valve of a vehicle; a control means which controls the first throttle-driving means according to the operating conditions of an internal combustion engine and of the vehicle and based on a first intended throttle opening corresponding to the amount by which the accelerator operation mechanism is operated, the control means acting to set a second intended throttle opening for securing a given slip ratio and then to control the first throttle-driving means for adjusting the throttle opening when excessive spin of the drive wheels is detected on acceleration of the vehicle; a second throttle-driving means which, when the first throttle-driving means becomes inoperative and the accelerator operation mechanism is operated by more than a given amount, can directly drive the throttle valve within a given range of opening; and a driving force-limiting means which acts to limit the driving force generated by the engine to a certain level independent of the first and second throttle-driving means and to detect excessive spin of a plurality of drive wheels and which, when the throttle valve is directly driven by operation of the accelerator operation mechanism, limits the driving force generated by the engine.
Claim 3
Dependent Claim
26 words
The throttle control apparatus of claim 1, wherein said driving force-limiting means is a fuel-cutting means which stops supply of fuel to the internal combustion engine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-30 | 1995-07-01 | 1995-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-30 | 1999-07-01 | 1999-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-30 | 2003-07-01 | 2003-12-31 | $7700.00 | Window Closed / Lapsed |