US5788005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front wheel- and rear wheel-drive vehicle
Assignee: Honda Motor Co Ltd
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Filing: 1996-04-17
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Granted: 1998-08-04
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Expires: 2016-04-17
Abstract
Abstract Either the front wheels or the rear wheels of a front wheel- and rear wheel-drive vehicle are driven by an engine and the other thereof are driven by an electric motor. A μ detecting circuit detects a coefficient of friction on a road surface. A control circuit controls to operate the electric motor such that, when the vehicle is started in a condition in which a detected coefficient of friction is below a predetermined value, an output torque of the electric motor becomes a predetermined set value corresponding to the detected coefficient of friction.
Inventors
- 👤 Kentarou Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:32
CPC Classifications
B; B60; B60W; B60W20/00; B60K; B60K23/00; B60K23/08; B60K23/0808; B60K28/00; B60K28/10; B60K28/16; B60K6/00; B60K6/20; B60K6/50; B60K6/52; B60L; B60L15/00; B60L15/20; B60L3/00; B60L3/10; B60L3/102; B60L50/00; B60L50/10; B60L50/15; B60W10/00; B60W10/02; B60W10/04; B60W10/08; B60K17/00; B60K17/34; B60K17/356; B60W2520/00; B60W2520/28; B60W2552/00; B60W2552/40; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/7072; Y02T10/72; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/916; Y10S903/946
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A front wheel- and rear wheel-drive vehicle in which either the front wheels or the rear wheels are driven by an engine and the other thereof are driven by an electric motor, said vehicle comprising: means for detecting a coefficient of friction on a road surface; and control means, operably coupled to said means for detecting said coefficient of friction, for controlling operation of said electric motor such that, when the vehicle is started in a condition in which a detected coefficient of friction is below a predetermined value, an output torque of said electric motor becomes a predetermined set value corresponding to the detected coefficient of friction.
Claim 2
Dependent Claim
108 words
A front wheel- and rear wheel-drive vehicle in which either the front wheels or the rear wheels are driven by an engine and the other thereof are driven by an electric motor, said vehicle comprising: means for detecting a coefficient of friction on a road surface; and control means, operably coupled to said means for detecting said coefficient of friction, for controlling operation of said electric motor such that, when the vehicle is started in a condition in which a detected coefficient of friction is below a predetermined value, an output torque of said electric motor becomes a predetermined set value corresponding to the detected coefficient of friction.
Claim 3
Dependent Claim
56 words
A front wheel- and rear wheel-drive vehicle according to claim 1, wherein said set value is set to such an upper limit value of the output torque of said electric motor as will not cause the wheels to be driven by said electric motor to slip on the road surface having the detected coefficient of friction.
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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) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |