US5074144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle performance monitoring system
Assignee: Individual
•
Filing: 1990-06-08
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Granted: 1991-12-24
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Expires: 2010-06-08
Abstract
Abstract Apparatus for monitoring the operating performance of a vehicle. The vehicle speed, engine operating speed and manifold pressure of the vehicle are compared to corresponding preset threshold values. The total time during which each of the vehicle speed, engine operating speed and manifold pressure exceed its threshold value is recorded and provided to the driver in a real-time display. The total time during which the engine is operating and the total time during which the engine is idling are also recorded and provided to the driver in a real time display.
Inventors
- 👤 Gary F. Krofchalk
- 👤 Richard F. Dickey
- 👤 Courtney Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
G; G07; G07C; G07C5/00; G07C5/08; G07C5/0841; G07C5/085
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A performance monitoring system for an engine-driven vehicle comprising: means for determining manifold pressure of said engine; means for comparing manifold pressure of said engine to a manifold pressure threshold value; means for determining the total time during which the manifold pressure of said engine exceeds said manifold pressure threshold value; means for detecting vehicle speed; means for detecting engine operating speed; means responsive to said means for detecting vehicle speed and said means for detecting operating speed, for determining the total time during which said vehicle is idling; means for determining the total time during which said engine is operating; and means for displaying the total time during which said engine is operating.
Claim 2
Dependent Claim
114 words
A performance monitoring system for an engine-driven vehicle comprising: means for determining manifold pressure of said engine; means for comparing manifold pressure of said engine to a manifold pressure threshold value; means for determining the total time during which the manifold pressure of said engine exceeds said manifold pressure threshold value; means for detecting vehicle speed; means for detecting engine operating speed; means responsive to said means for detecting vehicle speed and said means for detecting operating speed, for determining the total time during which said vehicle is idling; means for determining the total time during which said engine is operating; and means for displaying the total time during which said engine is operating.
Claim 3
Dependent Claim
23 words
The performance monitoring system according to claim 1 and further comprising means for displaying the total time during which said vehicle is idling.
Claim 4
Independent Claim
99 words
A method for evaluating at a central location, the performance of a driver operating a vehicle at a remote location comprising the steps of: setting an operating characteristic threshold value; measuring the operating characteristic of said vehicle during operation; determining the total time during the operation of said vehicle that the operating characteristic of said vehicle exceeds said operating characteristic threshold value; transmitting said determined total time to said central location for processing; determining at said central location, a percent violation which corresponds to said determined total time; transmitting said percent violation to said driver at said remote location.
Claim 5
Independent Claim
99 words
A method for evaluating at a central location, the performance of a driver operating a vehicle at a remote location comprising the steps of: setting an operating characteristic threshold value; measuring the operating characteristic of said vehicle during operation; determining the total time during the operation of said vehicle that the operating characteristic of said vehicle exceeds said operating characteristic threshold value; transmitting said determined total time to said central location for processing; determining at said central location, a percent violation which corresponds to said determined total time; transmitting said percent violation to said driver at said remote location.
Claim 6
Dependent Claim
13 words
The method according to claim 3 wherein the operating characteristic is manifold pressure.
Claim 7
Dependent Claim
14 words
The method according to claim 3 wherein the operating characteristic is engine operating speed.
Claim 8
Dependent Claim
13 words
The method according to claim 3 wherein the operating characteristic is vehicle speed.
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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |