Patent US6659212B2 successfully refreshed from Google Patents.
US6659212B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid drive for a motor vehicle with an exhaust gas turbocharger
Assignee: Mercedes Benz Group AG
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Filing: 2001-05-07
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Granted: 2003-12-09
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Expires: 2021-05-07
Abstract
Abstract In a hybrid drive for a vehicle, an exhaust gas turbocharger is coupled to an electrical machine. The machine is actuated by an electronic control device to limit the supercharge pressure of the exhaust gas turbocharger.
Inventors
- 👤 Dietmar Geisse
- 👤 Karl-Ernst Noreikat
- 👤 Alfons Rennefeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
B; B60; B60W; B60W20/00; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/44; B60K6/50; B60K6/52; B60W10/00; B60W10/04; B60W10/06; B60W10/08; F; F02; F02B; F02B37/00; F02B37/005; F02B39/00; F02B39/02; F02B39/08; F02B39/10; B60K1/00; B60K1/02; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/60; Y02T10/62; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/916
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
199 words
A hybrid drive for a motor vehicle comprising: an internal combustion engine and at least one first electrical machine as vehicle drive sources; at least one first electrical accumulator which is electrically coupled to the at least one first electrical machine as an electrical energy supply; an electronic control device, which automatically operates the at least one first electrical machine as an electric motor or as an electric generator as a function of predetermined operating conditions of the motor vehicle; at least one exhaust gas turbocharger which generates supercharge pressure for delivering fresh gas to the internal combustion engine; at least one second electrical machine, which is operable as a generator and is connected to drive a shaft of the exhaust gas turbocharger, said at least one second electrical machine being electrically coupled to supply current to the accumulator, and connected for control purposes to the electronic control device; wherein the electronic control device is configured to prevent the supercharge pressure generated by the exhaust gas turbocharger and input to the internal combustion engine from exceeding an operating limit, as a function of predetermined operating conditions, by regulating electrical power output of the at least one second electrical machine.
Claim 2
Dependent Claim
199 words
A hybrid drive for a motor vehicle comprising: an internal combustion engine and at least one first electrical machine as vehicle drive sources; at least one first electrical accumulator which is electrically coupled to the at least one first electrical machine as an electrical energy supply; an electronic control device, which automatically operates the at least one first electrical machine as an electric motor or as an electric generator as a function of predetermined operating conditions of the motor vehicle; at least one exhaust gas turbocharger which generates supercharge pressure for delivering fresh gas to the internal combustion engine; at least one second electrical machine, which is operable as a generator and is connected to drive a shaft of the exhaust gas turbocharger, said at least one second electrical machine being electrically coupled to supply current to the accumulator, and connected for control purposes to the electronic control device; wherein the electronic control device is configured to prevent the supercharge pressure generated by the exhaust gas turbocharger and input to the internal combustion engine from exceeding an operating limit, as a function of predetermined operating conditions, by regulating electrical power output of the at least one second electrical machine.
Claim 3
Dependent Claim
40 words
The hybrid drive according to claim 1 , wherein the control device is configured to operate the at least one second electrical machine not only as a generator, but also as an electric motor for driving the exhaust gas turbocharger.
Claim 4
Dependent Claim
39 words
The hybrid drive according to claim 1 , wherein: the accumulator is connected to a drive direct current network; the first and second electrical machines are respectively connected to the drive direct current network by means of power electronics.
Claim 5
Dependent Claim
27 words
The hybrid drive according to claim 3 , wherein the accumulator and the drive direct current network have an electrical DC voltage of at least 100 V.
Claim 6
Dependent Claim
23 words
The hybrid drive according to claim 4 , wherein the electrical DC voltage is within the range of 200 V and 350 V.
Claim 7
Dependent Claim
22 words
The hybrid drive according to claim 1 , wherein at least one of the electrical machines is a three-phase alternating current machine.
Claim 8
Independent Claim
205 words
A method of avoiding excessive internal combustion engine supercharge pressure in a hybrid drive for a motor vehicle having an internal combustion engine and at least one first electrical machine as vehicle drive sources; at least one first electrical accumulator which is electrically coupled to the at least one first electrical machine as an electrical energy supply; an electronic control device, which automatically operates the at least one first electrical machine as an electric motor or as an electric generator as a function of predetermined operating conditions of the motor vehicle; at least one exhaust gas turbocharger which generates supercharge pressure for delivering fresh gas to the internal combustion engine; at least one second electrical machine, which is operable as a generator and is connected to drive a shaft of the exhaust gas turbocharger, said at least one second electrical machine being electrically coupled to supply current to the accumulator, and connected for control purposes to the electronic control device, said method comprising: said electronic control device preventing said supercharge pressure of said at least one exhaust gas turbocharger from exceeding an operating limit as a function of predetermined operating conditions, by regulating an electric power output of the at least one second electrical machine.
Claim 9
Independent Claim
205 words
A method of avoiding excessive internal combustion engine supercharge pressure in a hybrid drive for a motor vehicle having an internal combustion engine and at least one first electrical machine as vehicle drive sources; at least one first electrical accumulator which is electrically coupled to the at least one first electrical machine as an electrical energy supply; an electronic control device, which automatically operates the at least one first electrical machine as an electric motor or as an electric generator as a function of predetermined operating conditions of the motor vehicle; at least one exhaust gas turbocharger which generates supercharge pressure for delivering fresh gas to the internal combustion engine; at least one second electrical machine, which is operable as a generator and is connected to drive a shaft of the exhaust gas turbocharger, said at least one second electrical machine being electrically coupled to supply current to the accumulator, and connected for control purposes to the electronic control device, said method comprising: said electronic control device preventing said supercharge pressure of said at least one exhaust gas turbocharger from exceeding an operating limit as a function of predetermined operating conditions, by regulating an electric power output of the at least one second electrical machine.
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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) | 2006-12-08 | 2007-06-09 | 2007-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-08 | 2011-06-09 | 2011-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-08 | 2015-06-09 | 2015-12-09 | $7700.00 | Window Closed / Lapsed |