Drive system including a transmission for a hybrid electric vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60K-006/543
F16H-003/72
B60K-006/365
B60K-006/387
B60K-006/445
F16H-037/08
F16H-037/10
B60K-006/38
출원번호
US-0086202
(2013-11-21)
등록번호
US-9186977
(2015-11-17)
발명자
/ 주소
Kimes, John W.
출원인 / 주소
MEANS INDUSTRIES, INC.
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
2인용 특허 :
57
초록▼
A drive system including a transmission for a hybrid electric vehicle is provided. The system includes a gear set having first, second, third and fourth elements. The second element connects with an output shaft of the transmission and a first output shaft of an internal combustion engine connects w
A drive system including a transmission for a hybrid electric vehicle is provided. The system includes a gear set having first, second, third and fourth elements. The second element connects with an output shaft of the transmission and a first output shaft of an internal combustion engine connects with the third element for driving the third element. An electric motor having an output shaft connecting with the first element drives the first element in response to an electrical signal. An electric motor-generator unit has an output shaft which connects with the fourth element for driving the fourth element in response to an electrical signal. A second output shaft of the engine also connects with the fourth element through the unit for driving the fourth element. The resulting system has a plurality of different operating modes including a reverse gear or operating mode powered electrically and by the internal combustion engine.
대표청구항▼
1. A drive system including a transmission for a hybrid electric vehicle, the system comprising: a gear set including first, second, third and fourth elements, the second element connecting with an output shaft of the transmission and a first output shaft of an internal combustion engine connecting
1. A drive system including a transmission for a hybrid electric vehicle, the system comprising: a gear set including first, second, third and fourth elements, the second element connecting with an output shaft of the transmission and a first output shaft of an internal combustion engine connecting with the third element for driving the third element;a transmission housing;an electric motor having an output shaft connecting with the first element for driving the first element in response to an electrical signal; andan electric motor-generator unit having an output shaft connecting with the fourth element for driving the fourth element in response to the electrical signal, a second output shaft of the engine connecting with the fourth element through the electric motor-generator unit for driving the fourth element, wherein the system has a plurality of different operating modes including a reverse gear or operating mode powered electrically and by the engine. 2. The system as claimed in claim 1 further comprising a non-friction brake assembly having a coupling state for coupling the fourth element to the housing and an uncoupling state for uncoupling the fourth element from the housing, the brake assembly being non-hydraulically controlled to change state to maintain a desired transmission ratio. 3. The system as claimed in claim 1 further comprising a non-friction brake assembly having a coupling state for coupling the third element to the housing and an uncoupling state for uncoupling the third element from the housing, the brake assembly being non-hydraulically controlled to change state to maintain a desired transmission ratio. 4. The system as claimed in claim 1 further comprising non-friction, first and second brake assemblies, the first brake assembly having a coupling state for coupling the fourth element to the housing and an uncoupling state for uncoupling the fourth element from the housing, the second brake assembly having a coupling state for coupling the third element to the housing and an uncoupling state for uncoupling the third element from the housing, the first and second brake assemblies being non-hydraulically controlled to change state to maintain a desired transmission ratio. 5. The system as claimed in claim 1 further comprising a non-friction clutch assembly being non-hydraulically controlled to change between a coupling state for coupling the fourth element to the second engine output shaft through the unit and an uncoupling state for uncoupling the fourth element from the second engine output shaft. 6. The system as claimed in claim 1 further comprising a non-friction clutch assembly being non-hydraulically controlled to change between a coupling state for coupling the unit to the second output shaft of the engine and an uncoupling state for uncoupling the unit from the second output shaft of the engine. 7. The system as claimed in claim 1 wherein the fourth, second, third, and first elements comprise a first sun gear, at least one ring gear, at least one carrier and a second sun gear, respectively. 8. The system as claimed in claim 1 further comprising a non-friction clutch assembly being non-hydraulically controlled to change between a coupling state for coupling the third element to the first output shaft of the engine and an uncoupling state for uncoupling the third element from the first output shaft of the engine. 9. The system as claimed in claim 1 wherein the transmission is an automatic transmission. 10. The system as claimed in claim 1 wherein the transmission is a multi-speed, step-ratio transmission having a CVT mode for automotive vehicles. 11. The system as claimed in claim 1 wherein the gear set is a Ravigneaux or a Simpson or a modified Ravigneaux gear set. 12. The system as claimed in claim 1 wherein the second output shaft of the engine is an auxiliary shaft. 13. The system as claimed in claim 1 wherein the transmission is a power-split, RWD transmission. 14. A drive system including a transmission for a hybrid electric vehicle, the system comprising: a planetary gear set including first, second, third and fourth elements, the second element connecting with an output shaft of the transmission, a first output shaft of an internal combustion engine connecting with the third element for driving the third element;a transmission housing;an electric motor having an output shaft connecting with the first element for driving the first element in response to an electrical signal;non-friction, first and second brake assemblies, the first brake assembly having a coupling state for coupling the fourth element to the housing and an uncoupling state for uncoupling the fourth element from the housing, the second brake assembly having a coupling state for coupling the third element to the housing and an uncoupling state for uncoupling the third element from the housing, the first and second brake assemblies being non-hydraulically controlled to change state to maintain a desired transmission ratio; andan electric motor-generator unit having an output shaft connecting with the fourth element for driving the fourth element in response to an electrical signal, a second output shaft of the engine connecting with the fourth element through the electric motor-generator unit for driving the fourth element, wherein the system has a plurality of different operating modes including a reverse gear or operating mode powered electrically and by the engine. 15. The system as claimed in claim 14, wherein the fourth, second, third, and first elements comprise a first sun gear, at least one ring gear, at least one carrier, and a second sun gear, respectively. 16. The system as claimed in claim 14 wherein the planetary gear set is a Ravigneaux, a Simpson or a modified Ravigneaux gear set. 17. The system as claimed in claim 14 wherein the transmission is a power-split, RWD transmission. 18. A drive system including a transmission for a hybrid electric vehicle, the system comprising: a planetary gear set including first, second, third and fourth elements, the second element connecting with an output shaft of the transmission, the third element connecting with a first output shaft of an internal combustion engine for driving the third element;a transmission housing;an electric motor having an output shaft connecting with the first element for driving the first element in response to an electrical signal;an electric motor-generator unit having an output shaft connecting with the fourth element for driving the fourth element, a second output shaft of the engine connecting with the fourth element through the electric motor-generator unit for driving the fourth element in response to an electrical signal, wherein the system has a plurality of different operating modes including a reverse gear or operating mode powered electrically and by the engine; andnon-friction, first and second clutch assemblies, the first clutch assembly being non-hydraulically controlled to change between a coupling state for coupling the third element to the first output shaft of the engine and an uncoupling state for uncoupling the third element from the first output shaft of the engine, the second clutch assembly being non-hydraulically controlled to change between a coupling state for coupling the fourth element to the second output shaft of the engine through the motor-generator and an uncoupling state for uncoupling the fourth element from the second output shaft of the engine. 19. The system as claimed in claim 18 wherein the transmission is a power-split, RWD transmission. 20. The system as claimed in claim 19 wherein the hybrid electric vehicle is a truck.
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