Patent US4917063A successfully refreshed from Google Patents.
US4917063A
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Method for setting the vehicle-engine torque
Assignee: KOMATSU SEISAKUSHO A CORP OF JAPAN KK
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Filing: 1988-05-27
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Granted: 1990-04-17
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Expires: 2008-05-27
Abstract
Abstract A method for setting the vehicle-engine torque comprises the step of: concentrating, in lower parts of operating ranges of engine speed of the engine, any of: operating ranges of engine speed of the engine, which ranges are determined by power output characteristics inherent in the engine; and the majority of operating ranges of engine torque. The method comprises the step of: selecting an acceleration torque set value at a time when acceleration conditions of a vehicle carrying the engine is detected by a detecting means, which acceleration torque set value is larger than a normal torque set value.
Inventors
- 👤 Hikosaburo Hiraki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:23
CPC Classifications
F; F02; F02D; F02D29/00; F02D29/02; F02D41/00; F02D41/02; F02D41/14; F02D41/1497; F02D41/30; F02D41/38; F02D2250/00; F02D2250/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A method for setting vehicle-engine torque, comprising the steps of: determining operating ranges of engine speed by power output characteristics in said engine, said operating ranges having lower portions; concentrating, in said lower portions of said operating ranges of said engine speed, at least one of said operating ranges of engine speed, and a majority of operating ranges of engine torque; and setting said vehicle-engine torque relative to said concentrated operating ranges of said engine speed.
Claim 2
Independent Claim
76 words
A method for setting vehicle-engine torque, comprising the steps of: determining operating ranges of engine speed by power output characteristics in said engine, said operating ranges having lower portions; concentrating, in said lower portions of said operating ranges of said engine speed, at least one of said operating ranges of engine speed, and a majority of operating ranges of engine torque; and setting said vehicle-engine torque relative to said concentrated operating ranges of said engine speed.
Claim 3
Dependent Claim
67 words
The method for setting vehicle-engine torque as set forth in claim 1, further comprising the steps of: detecting conditions by a detector for acceleration of a vehicle having said engine; and selecting an acceleration torque set value at a time when acceleration conditions of said vehicle having said engine is detected by said detector, said acceleration torque set value being larger than a normal torque set value.
Claim 4
Dependent Claim
34 words
The method for setting vehicle-engine torque as set forth in claim 2, wherein said step of detecting conditions for vehicle accelerating includes the step of comparing engine speed value and set engine speed 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) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |