IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0681309
(2003-10-09)
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우선권정보 |
JP-2002-322045(2002-11-06) |
발명자
/ 주소 |
- Yatabe,Kazuo
- Minagawa,Yuusuke
- Kargar,Keyvan
- Pichon,Yves
|
출원인 / 주소 |
- Nissan Motor Co., LTD
- Renault s.a.s. societe par actions simplifiee
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
13 인용 특허 :
9 |
초록
▼
In control apparatus and method for taking failure countermeasure for a hybrid vehicular drive system, on a lever diagram of a planetary gear mechanism, a revolution speed order is a first motor/generator, an engine, the output member, and a second motor/generator, high-brake and low-brake are arran
In control apparatus and method for taking failure countermeasure for a hybrid vehicular drive system, on a lever diagram of a planetary gear mechanism, a revolution speed order is a first motor/generator, an engine, the output member, and a second motor/generator, high-brake and low-brake are arranged at one and the other ends of the lever diagram, respectively, with the output member as an intermediate position on the lever diagram, an output abnormality of each of the engine, the first motor/generator, and the second motor/generator which are drive sources is detected, and, with one of the first and second clutching sections clutched, a vehicular run using at least one of the drive sources whose output is detected to be normal is enabled when the drive source output abnormality detecting section detects that the output abnormalities in any one or two of the drive sources occur.
대표청구항
▼
What is claimed is: 1. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system, comprising: a planetary gear mechanism to which four elements of an engine, a first motor/generator, a second motor/generator, and an output member are linked in such a manner that, on
What is claimed is: 1. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system, comprising: a planetary gear mechanism to which four elements of an engine, a first motor/generator, a second motor/generator, and an output member are linked in such a manner that, on a lever diagram of the planetary gear mechanism, a revolution speed order is the first motor/generator, the engine, the output member, and the second motor/generator; first and second clutching sections that are arranged at one and the other ends of the lever diagram with the output member as an intermediate position on the lever diagram, each of the first and second clutching section prescribing a speed line according to a clutching thereof; a drive source output abnormality detecting section that detects an output abnormality of each of the engine, the first motor/generator, and the second motor/generator which are drive sources; and a drive source failure countermeasure control section that, with one of the first and second clutching sections clutched, enables a vehicular run using at least one of the drive sources whose output is detected to be normal when the drive source output abnormality detecting section detects that the output abnormalities in any one or two of the drive sources occur. 2. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 1, wherein the first clutching section is a high-brake arranged at a position on the lever diagram coincident with a revolution speed axle of first motor/generator to fix a gear ratio when clutched and the second clutching section is a low-brake arranged at a position on the lever diagram between the revolution speed axle of the output member and the revolution speed axle of the second motor/generator to fix the gear ratio when clutched. 3. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes a run mode of the vehicle to a high-brake clutching run mode with the engine as the drive source when the output abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during a brake release run mode with the engine, the first motor/generator, and the second motor/generator as the drive sources. 4. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes the run mode of the vehicle to a low-brake clutching run mode with at least engine as the drive source when the abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during the low-brake clutching run mode with the engine as the drive source. 5. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes the run mode of the vehicle to the high-brake clutching run mode with the second motor/generator as the drive source when the abnormality in the output of the engine is detected to occur during the brake release run mode with the engine, the first motor/generator, and the second motor/generator as the drive sources. 6. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes the run mode to the low-brake clutching run mode with both of the first motor/generator and the second motor/generator as the drive sources when the abnormality of the output of the engine is detected to occur during the low-brake clutching run mode with the engine as the drive source. 7. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section starts the engine with at least one of the high-brake and the low-brake clutched and with one of the first and second motors/generators which is detected to be normal as the drive source when the abnormality in at least one of the outputs of the first and second motors/generators is detected to occur during the run mode with at least one of the first and second motor/generator as the drive source and with a stop of the engine. 8. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section starts the engine utilizing a vehicular inertia with at least one of the high-brake and the low-brake clutched when the abnormality in the outputs of both of the first and second motors/generators is detected to occur during the run mode with at least one of the first and second motors/generators as the drive source and with a stop of the engine. 9. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section achieves a two-stage gear ratio run mode between a low gear ratio by means of the clutching of the low-brake with the engine as the drive source and a high gear ratio by means of the clutching of the high-brake with the engine as the drive source when the engine is detected to be normal but the abnormality in at least one output of the first motor/generator and the second motor/generator is detected to occur. 10. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the planetary gear mechanism comprises a Ravigeaux compound planetary gear set including five revolvable elements of: a common carrier that supports mutually meshed first pinion and second pinion; a first sun gear meshed with a first pinion; a second sun gear meshed with a second pinion; a first ring gear meshed with the first pinion; and a second ring gear meshed with the second pinion and wherein the second ring gear is linked with an output axle of the engine via a clutch, the first sun gear is linked to an output axle of the first motor/generator, the second sun gear is linked to an output axle of the second motor/generator, and the common carrier is linked with the output member, the revolvable elements of the Ravigneaux compound planetary gear set are linked in such the manner that the revolution speed order on the lever diagram is the first motor/generator, the engine, the output member, and the second motor/generator, the high-brake is arranged at a position at which the first sun gear is enabled to be fixed to a casing, and the low-brake is arranged at a position at which the first ring gear is enabled to be fixed to the casing. 11. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes a run mode of the vehicle to a high-brake clutching run mode with the engine as the drive source when the output abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during the high-brake clutching run mode with the engine as the drive source. 12. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 2, wherein the drive source failure countermeasure control section fixes the run mode of the vehicle to the high-brake clutching run mode with the second motor/generator as the drive source when the abnormality in the output of the engine is detected to occur during the high-brake clutching run mode with the engine as the drive source. 13. A control apparatus for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 1, wherein the first and second motors/generators comprises a coaxial multiple layer motor including a stator as a stationary armature in which at least one coil is wound; an outer rotor arranged at an outside of the stator and in which a permanent magnet is buried; an inner rotor arranged at an inside of the stator and in which another permanent magnet is buried; an inverter connected to the coil of the stator that produces a compound current which is a composite of a drive current for the inner rotor and another drive current for the outer rotor; and a battery connected to the inverter. 14. A control method for taking failure countermeasure for a hybrid vehicular drive system, the hybrid vehicular drive system comprising: a planetary gear mechanism to which four elements of an engine, a first motor/generator, a second motor/generator, and an output member are linked in such a manner that, on a lever diagram of the planetary gear mechanism, a revolution speed order is the first motor/generator, the engine, the output member, and the second motor/generator; and first and second clutching sections that are arranged at one and the other ends of the lever diagram with the output member as an intermediate position on the lever diagram, each of the first and second clutching section prescribing a speed line according to a clutching thereof and the control method comprising: detecting an output abnormality of each of the engine, the first motor/generator, and the second motor/generator which are drive sources; and with one of the first and second clutching sections clutched, enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur. 15. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 14, wherein the first clutching section is a high-brake arranged at a position on the lever diagram coincident with a revolution speed axle of first motor/generator to fix a gear ratio when clutched and the second clutching section is a low-brake arranged at a position on the lever diagram between the revolution speed axle of the output member and the revolution speed axle of the second motor/generator to fix the gear ratio when clutched. 16. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 15, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing a run mode of the vehicle to a high-brake clutching run mode with the engine as the drive source when the output abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during a brake release run mode with the engine, the first motor/generator, and the second motor/generator as the drive sources. 17. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing the run mode of the vehicle to a low-brake clutching run mode with at least engine as the drive source when the abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during the low-brake clutching run mode with the engine as the drive source. 18. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing the run mode of the vehicle to the high-brake clutching run mode with the second motor/generator as the drive source when the abnormality in the output of the engine is detected to occur during the brake release run mode with the engine, the first motor/generator, and the second motor/generator as the drive sources. 19. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing the run mode to the low-brake clutching run mode with both of the first motor/generator and the second motor/generator as the drive sources when the abnormality of the output of the engine is detected to occur during the low-brake clutching run mode with the engine as the drive source. 20. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, starting the engine with at least one of the high-brake and the low-brake clutched and with one of the first and second motors/generators which is detected to be normal as the drive source when the abnormality in at least one of the outputs of the first and second motors/generators is detected to occur during the run mode with at least one of the first and second motor/generator as the drive source and with a stop of the engine. 21. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, achieving a two-stage gear ratio run mode between a low gear ratio by means of the clutching of the low-brake with the engine as the drive source and a high gear ratio by means of the clutching of the high-brake with the engine as the drive source when the engine is detected to be normal but the abnormality in at least one output of the first motor/generator and the second motor/generator is detected to occur. 22. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing a run mode of the vehicle to a high-brake clutching run mode with the engine as the drive source when the output abnormality in at least one of the outputs of the first motor/generator and the second motor/generator is detected to occur during the high-brake clutching run mode with the engine as the drive source. 23. A control method for taking failure countermeasure for a hybrid vehicular drive system as claimed in claim 16, wherein, at a time of enabling a vehicular run using at least one of the drive sources whose output is detected to be normal when detecting that the output abnormalities in any one or two of the drive sources occur, fixing the run mode of the vehicle to the high-brake clutching run mode with the second motor/generator as the drive source when the abnormality in the output of the engine is detected to occur during the high-brake clutching run mode with the engine as the drive source.
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