Patent US6236929B1 successfully refreshed from Google Patents.
US6236929B1
Expired / Lapsed
US
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Auto-cruise controller
Assignee: Honda Motor Co Ltd
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Filing: 1999-09-30
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Granted: 2001-05-22
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Expires: 2019-09-30
Abstract
Abstract An auto-cruise controller to control the throttle angle of an engine so that the actual vehicle speed is equal to the target vehicle speed. In the controller, the pressure control of a lock-up clutch of an automatic transmission is conducted based on an amount of control of the lock-up pressure calculated corresponding to the traveling conditions of the vehicle when the throttle is fully closed, and when the vehicle is descending a slope during the auto-cruise control.
Inventors
- 👤 Naoto Sen
- 👤 Akira Itoh
- 👤 Kimiaki Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:37
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60K; B60K31/00; B60K31/02; B60K31/04; B60K31/042; B60K31/045; B60K31/047; B60W10/00; B60W10/04; B60W10/10; B60W10/11; B60W30/1819; F; F16; F16H; F16H61/00; F16H61/14; F16H61/143; F16H61/21; B60W2552/00; B60W2552/15; B60W2710/00; B60W2710/06; B60W2710/0605; F16H59/00; F16H59/60; F16H59/66; F16H2059/663
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
143 words
An auto-cruise controller in which a target vehicle speed is set, and a throttle angle of an engine is controlled so that a detected actual vehicle speed is equal to the target vehicle speed, said auto-cruise controller comprising: means for controlling a pressure of a lock-up clutch in an automatic transmission with a lock-up mechanism; means for judging a slope descending condition of a vehicle during an auto-cruising control; and means for calculating an amount to be controlled of the lock-up clutch pressure correspondingly to a difference between the actual vehicle speed and the target vehicle speed at the time of judgement of the slope descending condition, wherein the pressure control of the lock-up clutch is performed based on the amount to be controlled of the lock-up clutch pressure, which is calculated at the time of the judgement of the slope descending condition.
Claim 2
Dependent Claim
143 words
An auto-cruise controller in which a target vehicle speed is set, and a throttle angle of an engine is controlled so that a detected actual vehicle speed is equal to the target vehicle speed, said auto-cruise controller comprising: means for controlling a pressure of a lock-up clutch in an automatic transmission with a lock-up mechanism; means for judging a slope descending condition of a vehicle during an auto-cruising control; and means for calculating an amount to be controlled of the lock-up clutch pressure correspondingly to a difference between the actual vehicle speed and the target vehicle speed at the time of judgement of the slope descending condition, wherein the pressure control of the lock-up clutch is performed based on the amount to be controlled of the lock-up clutch pressure, which is calculated at the time of the judgement of the slope descending condition.
Claim 3
Dependent Claim
35 words
The auto-cruise controller according to claim 1 , wherein said controlling means controls the pressure of the lock-up clutch under control of an automatic transmission control unit including said judging means and said calculating means.
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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) | 2004-05-21 | 2004-11-20 | 2005-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-21 | 2008-11-20 | 2009-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-21 | 2012-11-20 | 2013-05-22 | $7700.00 | Window Closed / Lapsed |