US4819598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preventing troublesome load change shocks caused by a combustion engine
Assignee: Volkswagen AG
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Filing: 1987-11-23
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Granted: 1989-04-11
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Expires: 2007-11-23
Abstract
Abstract A method and apparatus for preventing troublesome load change shocks caused by a combustion engine having a time delay in the transmission of the accelerator pedal commands to the output control element. In order to exclude undesirable influences on operation due to the time delay, the time delay is limited to a very narrow region around the location zero of the torque gradient in relation to time.
Inventors
- 👤 Eckart Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:07
CPC Classifications
B; B60; B60K; B60K26/00; B60K26/04; F; F02; F02D; F02D11/00; F02D11/06; F02D11/10; F02D11/105; B60W; B60W50/00; B60W2050/0001; B60W2050/0019; B60W2050/0042; F02D2250/00; F02D2250/18; F02D2250/21; F02D41/00; F02D41/02; F02D41/04; F02D41/10; F02D41/107
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A method for preventing troublesome load change shocks caused by a combustion engine used to propel a vehicle, the method comprising the step of transmitting with a time delay control commands for a power control element which are delivered by an accelerator pedal, said time delay being limited to a region of the torque curve of the engine where the torque changes between positive and negative values.
Claim 2
Independent Claim
67 words
A method for preventing troublesome load change shocks caused by a combustion engine used to propel a vehicle, the method comprising the step of transmitting with a time delay control commands for a power control element which are delivered by an accelerator pedal, said time delay being limited to a region of the torque curve of the engine where the torque changes between positive and negative values.
Claim 3
Independent Claim
87 words
An apparatus for preventing load change shocks of a combustion engine used to propel a vehicle by transmitting, with a time delay, control commands for a power control element, the time delay being limited to a region of the torque curve of the engine where the torque changes between positive and negative values, the apparatus comprising; means for delivering the control commands to the power control element; a torque signal generator; a time delay signal generator; and amplitude window circuit means provided between said torque signal generator.
Claim 4
Independent Claim
87 words
An apparatus for preventing load change shocks of a combustion engine used to propel a vehicle by transmitting, with a time delay, control commands for a power control element, the time delay being limited to a region of the torque curve of the engine where the torque changes between positive and negative values, the apparatus comprising; means for delivering the control commands to the power control element; a torque signal generator; a time delay signal generator; and amplitude window circuit means provided between said torque signal generator.
Claim 5
Dependent Claim
51 words
An apparatus as defined in claim 2, wherein said amplitude window circuit means has a pass range of approximately 0.1 M d max ≧M d ≧-0.1 M d max, M d being a prevailing torque signal and M d max being a torque signal at maximum torque of the combustion engine.
Claim 6
Dependent Claim
24 words
An apparatus as defined in claim 2, wherein said time delay signal generator is designed for delays ranging from approximately 0.03 to 0.5 seconds.
Claim 7
Dependent Claim
30 words
An apparatus as defined in claim 2, wherein the torque signal generator is provided so as to serve as a performance characteristic storage which is actuated by way of sensors.
Claim 8
Independent Claim
76 words
An apparatus for preventing troublesome load change shocks caused by a combustion engine used to propel a vehicle comprising; a power control element for the vehicle; an accelerator pedal provided so as to deliver a control command to said power control element, said control command being transmitted with a time delay; and means for limiting the time delay to a region of the torque curve of the engine where torque changes between positive and negative values.
Claim 9
Independent Claim
76 words
An apparatus for preventing troublesome load change shocks caused by a combustion engine used to propel a vehicle comprising; a power control element for the vehicle; an accelerator pedal provided so as to deliver a control command to said power control element, said control command being transmitted with a time delay; and means for limiting the time delay to a region of the torque curve of the engine where torque changes between positive and negative values.
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |