Patent US3370218A successfully refreshed from Google Patents.
US3370218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for diesel-electric traction vehicles
Assignee: Sulzer AG
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Filing: 1966-03-02
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Granted: 1968-02-20
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Merz Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:06
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/10; B60L50/12; B60L50/11; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A CONTROL SYSTEM FOR A DIESEL-ELECTRIC TRACTION VEHICLE IN WHICH SUPERCHARGED DIESEL ENGINE DRIVES A SERIESCONNECTED DIRECT CURRENT TRACTION MOTOR BY MEANS OF A GENERATOR HAVING VARIABLE EXCITATION, SAID SYSTEM COMPRISING MEANS TO GENERATE A FIRST SIGNAL REPRESENTATIVE OF ENGINE SPEED, MEANS TO GENERATE A SECOND SIGNAL, MEANS TO LIMIT THE TIME RATE OF CHANGE OF SAID SECOND SIGNAL, MEANS TO DEVELOP A THIRD SIGNAL FROM SAID FIRST SIGNAL AND FROM SAID SECOND SIGNAL LIMITED AS TO TIME RATE OF CHANGE, MEANS TO DEVELOP A FOURTH SUGBAK REPRESENTATIVE OF ENGINE SUPERCHARGING PRESSURE, FIRST VARIABLE LIMITER MEANS FOR SAID THIRD SIGNAL RESPONSIVE TO SAID FOURTH SIGNAL, SERVOMECHANISM RESPONSIVE TO SAID THIRD SIGNAL AS LIMITED BY SAID FIRST VARIABLE LIMITER MEANS TO CONTROL THE RATE OF FUEL INJECTION TO THE ENGINE, MEANS TO MODIFY SAID SECOND SIGNAL, SECOND VARIABLE LIMITING MEANS FOR SAID MODIFIED SECOND SIGNAL RESPONSIVE TO SAID FOURTH SIGNAL, MEANS TO DEVELOP FROM SAID LIMITED MODIFIED SECOND SIGNAL AND FROM SAID THIRD SIGNAL A FIFTH SIGNAL, A CONTROL AMPLIFIER HAVING ASYMMETRIC PROPORTIONAL-INTEGRAL OPERATION RECEIVING SAID FIFTH SIGNAL AS AN INPUT, AND MEANS RESPONSIVE TO THE OUTPUT FROM SAID CONTROL AMPLIFIER FOR CONTROL OF THE EXCITATION OF SAID GENERATOR.
Claim 2
Dependent Claim
198 words
A CONTROL SYSTEM FOR A DIESEL-ELECTRIC TRACTION VEHICLE IN WHICH SUPERCHARGED DIESEL ENGINE DRIVES A SERIESCONNECTED DIRECT CURRENT TRACTION MOTOR BY MEANS OF A GENERATOR HAVING VARIABLE EXCITATION, SAID SYSTEM COMPRISING MEANS TO GENERATE A FIRST SIGNAL REPRESENTATIVE OF ENGINE SPEED, MEANS TO GENERATE A SECOND SIGNAL, MEANS TO LIMIT THE TIME RATE OF CHANGE OF SAID SECOND SIGNAL, MEANS TO DEVELOP A THIRD SIGNAL FROM SAID FIRST SIGNAL AND FROM SAID SECOND SIGNAL LIMITED AS TO TIME RATE OF CHANGE, MEANS TO DEVELOP A FOURTH SUGBAK REPRESENTATIVE OF ENGINE SUPERCHARGING PRESSURE, FIRST VARIABLE LIMITER MEANS FOR SAID THIRD SIGNAL RESPONSIVE TO SAID FOURTH SIGNAL, SERVOMECHANISM RESPONSIVE TO SAID THIRD SIGNAL AS LIMITED BY SAID FIRST VARIABLE LIMITER MEANS TO CONTROL THE RATE OF FUEL INJECTION TO THE ENGINE, MEANS TO MODIFY SAID SECOND SIGNAL, SECOND VARIABLE LIMITING MEANS FOR SAID MODIFIED SECOND SIGNAL RESPONSIVE TO SAID FOURTH SIGNAL, MEANS TO DEVELOP FROM SAID LIMITED MODIFIED SECOND SIGNAL AND FROM SAID THIRD SIGNAL A FIFTH SIGNAL, A CONTROL AMPLIFIER HAVING ASYMMETRIC PROPORTIONAL-INTEGRAL OPERATION RECEIVING SAID FIFTH SIGNAL AS AN INPUT, AND MEANS RESPONSIVE TO THE OUTPUT FROM SAID CONTROL AMPLIFIER FOR CONTROL OF THE EXCITATION OF SAID GENERATOR.
References Cited (Backward Citations)
US2914050A
Cited
US3263142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |