US4632231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the starting of a vehicle having automatic clutch
Assignee: Isuzu Motors Ltd
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Filing: 1984-06-28
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Granted: 1986-12-30
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Expires: 2004-06-28
Abstract
Abstract A method of controlling the starting of a vehicle having an engine, an automatic clutch and an electronic control system which detects the extent of depression of an accelerator pedal and determines the speed of operation of a clutch actuator based on the detected extent of depression of the accelerator pedal. In particular, the method includes detecting a load on the engine due to a change in the condition in which the clutch is engaged, and stopping connection control of the clutch when the detected load on the engine is increased, to prevent an engine stop. In addition correction is made to vary the speed at which the vehicle starts linearly with respect to the extent of depression of the accelerator pedal.
Inventors
- 👤 Toshihiro Hattori
- 👤 Masaki Ishihara
- 👤 Makoto Uriuhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:16
CPC Classifications
B; B60; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/02; B60W30/00; B60W30/18; B60W30/18009; B60W30/18027; B60W30/1819; B60W2510/00; B60W2510/02; B60W2510/0241; B60W2510/06; B60W2510/0638; B60W2540/00; B60W2540/16; B60W2710/00; B60W2710/02; B60W2710/021; B60W2710/023; B60W2710/06; B60W2710/0644; B60W2710/065
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A method of controlling the starting of a vehicle having an engine, an automatic clutch, and an electronic control system, comprising the steps of: (a) controlling the clutch to be engaged, (b) detecting the number of r.p.m. of the engine; (c) detecting the extent of engagement of the clutch; (d) determining a limit number of r.p.m. of the engine corresponding to the detected extent of engagement of the clutch; and (e) stopping the engagement of the clutch when the number of r.p.m. of the engine detected in step (b) is less that the limit number of r.p.m.
Claim 2
Independent Claim
97 words
A method of controlling the starting of a vehicle having an engine, an automatic clutch, and an electronic control system, comprising the steps of: (a) controlling the clutch to be engaged, (b) detecting the number of r.p.m. of the engine; (c) detecting the extent of engagement of the clutch; (d) determining a limit number of r.p.m. of the engine corresponding to the detected extent of engagement of the clutch; and (e) stopping the engagement of the clutch when the number of r.p.m. of the engine detected in step (b) is less that the limit number of r.p.m.
Claim 3
Independent Claim
120 words
A method of controlling the starting of a vehicle having an automatic clutch and an electronic control system which detects the extent of depression of an accelerator pedal and determines the speed of operation of a clutch actuator based on the detected extent of depression of the accelerator pedal, comprising the steps of: (a) detecting an extent of engagement of the clutch; (b) determining a corrective value to correct a speed of operation of the clutch based on the detected extent of engagement of the clutch; and (c) controlling the clutch to be connected at a speed which is obtained by correcting a speed of operation of the clutch as determined by the electronic control system with the corrective value.
Claim 4
Independent Claim
120 words
A method of controlling the starting of a vehicle having an automatic clutch and an electronic control system which detects the extent of depression of an accelerator pedal and determines the speed of operation of a clutch actuator based on the detected extent of depression of the accelerator pedal, comprising the steps of: (a) detecting an extent of engagement of the clutch; (b) determining a corrective value to correct a speed of operation of the clutch based on the detected extent of engagement of the clutch; and (c) controlling the clutch to be connected at a speed which is obtained by correcting a speed of operation of the clutch as determined by the electronic control system with the corrective value.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |