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Process for determining a desired load value for a load-dependent current generating system in an electric vehicle
Assignee: Mercedes Benz Fuel Cell GmbH
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Filing: 1996-11-08
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Granted: 1999-03-02
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Expires: 2016-11-08
Abstract
Abstract This invention provides a process for determining a desired load value for a load-dependent current generating system, particularly a fuel cell system, in an electric vehicle. Based on an accelerator pedal demand, a desired value for the motor line currents of the electric driving motor is determined in the driving motor converter, and therefrom a desired load value is generated directly for the current generating system.
Inventors
- 👤 Josef Sonntag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:01
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/04; H01M8/04082; H01M8/04089; B; B60; B60L; B60L50/00; B60L50/10; B60L58/00; B60L58/30; H01M2250/00; H01M2250/20; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T90/00; Y02T90/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
Process for controlling an output from a load-dependent current generating system in an electric vehicle, comprising the steps of reading an accelerator pedal demand value input by a vehicle operator; calculating desired values for motor line currents for the electric driving motor, based on said accelerator pedal demand value; calculating a desired output current for the current generating system based on said desired values for motor line currents; and controlling an input of fuel to said current generating system as a function of said desired output current.
Claim 2
Dependent Claim
87 words
Process for controlling an output from a load-dependent current generating system in an electric vehicle, comprising the steps of reading an accelerator pedal demand value input by a vehicle operator; calculating desired values for motor line currents for the electric driving motor, based on said accelerator pedal demand value; calculating a desired output current for the current generating system based on said desired values for motor line currents; and controlling an input of fuel to said current generating system as a function of said desired output current.
Claim 3
Dependent Claim
30 words
Process according to claim 1 wherein said desired output of the current generating system is corrected based on at least one of temperature and efficiency of said current generating system.
Claim 4
Dependent Claim
17 words
Process according to claim 1 wherein said desired output current is corrected by means of characteristic diagrams.
Claim 5
Dependent Claim
14 words
Process according to claim 1 wherein said current generating system is a fuel cell.
Claim 6
Dependent Claim
25 words
Process according to claim 1 wherein said output of said current generating system comprises one of a desired power value and a desired current 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) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |