Torsion damper for hybrid electric transmission
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60K-006/40
B60K-006/387
B60K-006/48
B60K-006/547
F16H-045/02
출원번호
US-0325112
(2011-12-14)
등록번호
US-9365103
(2016-06-14)
발명자
/ 주소
Frait, Steven A.
Thomas, Steven G.
출원인 / 주소
FORD GLOBAL TECHNOLOGIES, LLC
대리인 / 주소
Kelley, David B.
인용정보
피인용 횟수 :
0인용 특허 :
14
초록▼
A vehicle powertrain includes an engine, a torsion damper connected to the engine, a torque converter, a housing enclosing a clutch, a motor and gearing, and a drive shell surrounding the torque converter, including an input connected to the damper, an output connected to the clutch, the clutch and
A vehicle powertrain includes an engine, a torsion damper connected to the engine, a torque converter, a housing enclosing a clutch, a motor and gearing, and a drive shell surrounding the torque converter, including an input connected to the damper, an output connected to the clutch, the clutch and the motor located between the torque converter and the gearing, the torsion damper located between the engine and the torque converter.
대표청구항▼
1. A vehicle powertrain comprising: an engine;a torsion damper connected to the engine;a torque converter having an impeller shroud;a housing enclosing a clutch, a motor and gearing;a drive shell surrounding the impeller shroud, including an input connected to the damper, an output connected to the
1. A vehicle powertrain comprising: an engine;a torsion damper connected to the engine;a torque converter having an impeller shroud;a housing enclosing a clutch, a motor and gearing;a drive shell surrounding the impeller shroud, including an input connected to the damper, an output connected to the clutch, the clutch and the motor located between the torque converter and the gearing, the damper located between the engine and the torque converter; wherein the drive shell is rotatable independently from the torque converter when the clutch is disengaged, and the drive shell is rotationally coupled to the torque converter when the clutch is engaged. 2. The powertrain of claim 1 wherein the torque converter is provided with an input shaft connected between the motor and an impeller of the torque converter, a stator mounted on a stator shaft secured to the housing, and a turbine mounted on an input shaft of the gearing. 3. The powertrain of claim 2, wherein the torque converter includes the impeller, and a second torsion damper located in the impeller shroud and in a power path between the impeller and the input shaft of the gearing. 4. The powertrain of claim 2 wherein the input shaft of the gearing, the stator shaft, and the torque converter input shaft are arranged coaxially with the drive shell output. 5. The powertrain of claim 1 wherein the torque converter includes a thrust bearing engaged with a free end of a gearing input shaft for limiting axial movement of the torque converter. 6. The powertrain of claim 1, further comprising: a second housing secured between the housing and the engine, including a wall which forms a boundary between a wet cavity in which the motor is located and a dry cavity in which the torque converter is located, the wall defining an annular bore that supports a hub of the clutch. 7. The powertrain of claim 1 wherein the drive shell is selectively rotatable independently from the torque converter. 8. The powertrain of claim 1 wherein the torsion damper includes a ring gear located at a radially outer location of the damper, the ring gear configured to be engageable with a gear of a starter motor. 9. A vehicle powertrain, comprising: an engine;a clutch;a torque converter;a torsion damper connected to the engine and located between the engine and the torque converter;a transmission gearing;a motor located between the torque converter and the gearing;a drive shell located between the damper and the clutch, partially surrounding the torque converter, and selectively rotatable independently from the torque converter. 10. The powertrain of claim 9 wherein the torque converter is provided with an input shaft connected between the motor and an impeller of the torque converter, a stator mounted on a stator shaft fixed against rotation, and a turbine mounted on an input shaft of the transmission gearing. 11. The powertrain of claim 10, wherein the torque converter includes the impeller, and a second torsion damper located in an impeller shroud and in a power path between the impeller and the input shaft of the transmission gearing. 12. The powertrain of claim 10 wherein the input shaft of the transmission gearing, the stator shaft, and the torque converter input shaft are arranged coaxially. 13. The powertrain of claim 9 wherein the torque converter includes a thrust bearing engaged with a free end of the input shaft of the transmission gearing for limiting axial movement of the torque converter. 14. The powertrain of claim 9, further comprising: a housing secured between a transmission housing and the engine, including a wall which forms a boundary between a wet cavity in which the motor is located and a dry cavity in which the torque converter is located, the wall defining an annular bore that supports a hub of the clutch. 15. The powertrain of claim 9, further comprising: a wet housing partially defining an enclosed wet cavity; anda dry housing adapted to be secured to the wet housing and to the engine, defining an enclosed dry cavity, the dry housing including a wall forming a boundary between the wet cavity and the dry cavity, the dry cavity containing the drive shell and the torque converter. 16. The powertrain of claim 9 wherein the torque converter includes an impeller shroud and the drive shell partially surrounds the impeller shroud. 17. The powertrain of claim 9 wherein the torsion damper includes a ring gear located at a radially outer location of the damper, the ring gear configured to be engageable with a gear of a starter motor.
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이 특허에 인용된 특허 (14)
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Hertz,Erik M.; Bowes,Christopher J.; Holmes,Alan G.; Raszkowski,James A., Motor resolver assembly and method of measuring speed and position of a motor rotor.
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