US6202021B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for temporarily increasing maximum road speed of a vehicle driven by an internal combustion engine
Assignee: Cummins Inc
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Filing: 2000-03-24
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Granted: 2001-03-13
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Expires: 2020-03-24
Abstract
Abstract A road speed control system for a vehicle driven by an internal combustion engine includes a control computer operable to control engine fueling based on inputs from at least an accelerator pedal position sensor, a vehicle speed signal, and at least one control signal. According to one aspect of the invention, the control computer is responsive to a first control signal to decrease the maximum road speed limit value and to a second control signal to increase the maximum road speed value, to thereby provide a road speed limiting system operable under manual engine fueling conditions. According to another aspect of the invention, the control computer is responsive to at least one control signal to activate a maximum road speed limit override feature for temporarily increasing the maximum road speed limit value to, for example, facilitate passing attempts.
Inventors
- 👤 John P. Kresse
- 👤 W. Patrick Niehus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:06
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/02; B60K31/04; B60K31/042; B60K31/0008; B60K31/0058; B60K31/045; B60K31/047; B60W; B60W2540/00; B60W2540/10; B60W2556/00; B60W2556/45; B60W2556/50; B60W2710/00; B60W2710/06; B60W2710/0616
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
84 words
A system for temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising: a road speed governor; a first road speed limit associated with said road speed governor; a second road speed limit associated with said road speed governor, said second road speed limit higher than said first road speed limit; and means for temporarily increasing a maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit.
Claim 2
Independent Claim
84 words
A system for temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising: a road speed governor; a first road speed limit associated with said road speed governor; a second road speed limit associated with said road speed governor, said second road speed limit higher than said first road speed limit; and means for temporarily increasing a maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit.
Claim 3
Dependent Claim
72 words
The system of claim 1 wherein said means for temporarily increasing said maximum road speed limit includes means responsive to a request for road speed governor override operation for producing an override signal, said means for temporarily increasing said maximum road speed limit increasing said maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit in response to said override signal.
Claim 4
Dependent Claim
66 words
The system of claim 2 further including an accelerator pedal producing an accelerator pedal signal; and wherein said means for temporarily increasing said maximum road speed limit includes means for temporarily increasing said maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit if said accelerator pedal signal is greater than an accelerator pedal threshold.
Claim 5
Dependent Claim
80 words
The system of claim 3 further including a vehicle speed sensor sensing speed of a vehicle driven by an internal combustion engine and producing a vehicle speed signal corresponding thereto; and wherein said means for temporarily increasing said maximum road speed limit includes means for temporarily increasing said maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit as long as said vehicle speed signal exceeds a speed threshold.
Claim 6
Dependent Claim
38 words
The system of claim 1 further including an override accumulator having an accumulator value indicative of a number of miles traveled with said maximum road speed of said road speed governor limited to said second road speed limit.
Claim 7
Dependent Claim
53 words
The system of claim 5 wherein said means for temporarily increasing said maximum road speed limit includes means for temporarily increasing said maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit if said accumulator value is less than an accumulator threshold.
Claim 8
Dependent Claim
37 words
The system of claim 1 further including an override accumulator having an accumulator value indicative of an elapsed time traveled with said maximum road speed of said road speed governor limited to said second road speed limit.
Claim 9
Dependent Claim
53 words
The system of claim 7 wherein said means for temporarily increasing said maximum road speed limit includes means for temporarily increasing said maximum road speed limit of said road speed governor from said first road speed limit to said second road speed limit if said accumulator value is less than an accumulator threshold.
Claim 10
Independent Claim
86 words
A system for temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising: a road speed governor having a maximum road speed limit associated therewith; an override accumulator maintaining an accumulator value indicative of one of an elapsed time spent and a distance traveled while overriding said road speed governor; and means for overriding said road speed governor and allowing road speed in excess of said maximum road speed limit if said accumulator value is below an accumulator value threshold.
Claim 11
Independent Claim
86 words
A system for temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising: a road speed governor having a maximum road speed limit associated therewith; an override accumulator maintaining an accumulator value indicative of one of an elapsed time spent and a distance traveled while overriding said road speed governor; and means for overriding said road speed governor and allowing road speed in excess of said maximum road speed limit if said accumulator value is below an accumulator value threshold.
Claim 12
Dependent Claim
55 words
The system of claim 9 wherein said means for overriding road speed governor includes means responsive to a request for road speed governor override operation for producing an override signal, said means for overriding said road speed governor allowing road speed in excess of said maximum road speed limit in response to said override signal.
Claim 13
Dependent Claim
57 words
The system of claim 10 further including an accelerator pedal producing an accelerator pedal signal; and wherein said means for overriding said road speed governor includes means for overriding said road speed governor and allowing road speed in excess of said maximum road speed value if said accelerator pedal signal is greater than an accelerator pedal threshold.
Claim 14
Dependent Claim
71 words
The system of claim 11 further including a vehicle speed sensor sensing speed of a vehicle driven by an internal combustion engine and producing a vehicle speed signal corresponding thereto; and wherein said means for overriding said road speed governor includes means for overriding said road speed governor and allowing road speed in excess of said maximum road speed limit as long as said vehicle speed signal exceeds a speed threshold.
Claim 15
Independent Claim
71 words
A method of temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising the steps of: normally limiting a maximum road speed to a first road speed limit; monitoring a maximum road speed override activator; and limiting said maximum road speed to a second road speed limit greater than said first road speed limit in response to activation of said maximum road speed override activator.
Claim 16
Independent Claim
71 words
A method of temporarily increasing a maximum road speed of a vehicle driven by an internal combustion engine, comprising the steps of: normally limiting a maximum road speed to a first road speed limit; monitoring a maximum road speed override activator; and limiting said maximum road speed to a second road speed limit greater than said first road speed limit in response to activation of said maximum road speed override activator.
Claim 17
Dependent Claim
47 words
The method of claim 13 further including the steps of: sensing accelerator pedal position and producing an accelerator pedal signal corresponding thereto; and maintaining said limit of said maximum road speed at said second road speed limit if said accelerator pedal signal exceeds an accelerator pedal threshold.
Claim 18
Dependent Claim
48 words
The method of claim 14 further including the steps of: sensing vehicle speed and producing a vehicle speed signal corresponding thereto; and maintaining said limit of said maximum road speed at said second road speed limit as long as said vehicle speed signal exceeds a vehicle speed threshold.
Claim 19
Dependent Claim
35 words
The method of claim 13 further including the step of accumulating a number of miles traveled with said maximum road speed limited to said second road speed limit and producing an accumulator value corresponding thereto.
Claim 20
Dependent Claim
50 words
The method of claim 16 wherein the step of limiting said maximum road speed to said second road speed limit greater than said first road speed limit in response to activation of said maximum road speed override activator is conditioned upon said accumulator value being less than an accumulator threshold.
Claim 21
Dependent Claim
34 words
The method of claim 13 further including the step of accumulating an elapsed time traveled with said maximum road speed limited to said second road speed limit and producing an accumulator value corresponding thereto.
Claim 22
Dependent Claim
50 words
The method of claim 18 wherein the step of limiting said maximum road speed to said second road speed limit greater than said first road speed limit in response to activation of said maximum road speed override activator is conditioned upon said accumulator value being less than an accumulator threshold.
References Cited (Backward Citations)
US3665390A
Cited
US4166514A
Cited
US4177516A
Cited
US4375207A
Cited
US4386688A
Cited
US4853720A
Cited
US4890231A
Cited
US4899623A
Cited
US4884669A
Cited
US4887684A
Cited
US5096015A
Cited
US5048631A
Cited
US5485381A
Cited
US5552985A
Cited
US5401223A
Cited
US5393277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-03-12 | 2004-09-11 | 2005-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-12 | 2008-09-11 | 2009-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-12 | 2012-09-11 | 2013-03-13 | $7700.00 | Window Closed / Lapsed |