[미국특허]
Hybrid vehicle drive system and method and idle reduction system and method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60K-006/42
B60K-006/50
B60K-006/12
B60K-006/48
B60K-017/28
B60K-025/00
B60L-001/00
B60L-011/14
B60W-010/06
B60W-010/08
B60W-020/00
B60L-011/00
B60W-010/30
출원번호
US-0130888
(2008-05-30)
등록번호
US-8978798
(2015-03-17)
발명자
/ 주소
Dalum, Joseph Thomas
Ambrosio, Joseph Mario
출원인 / 주소
Odyne Systems, LLC
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
7인용 특허 :
123
초록▼
One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with
One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor. The electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. The hydraulic motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.
대표청구항▼
1. A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO, the vehicle drive system comprising: a through shaft;a hydraulic pump in mechanical communication with the PTO;an electric motor in mechanical commu
1. A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO, the vehicle drive system comprising: a through shaft;a hydraulic pump in mechanical communication with the PTO;an electric motor in mechanical communication with the hydraulic pump, wherein the electric motor can receive power from the first prime mover driven transmission through the PTO, wherein the electric motor can provide power to the prime mover driven transmission through the PTO and wherein the hydraulic pump can receive power from the electric motor when the electric motor rotates, the electric motor using power from the rechargeable power source or from the prime mover driven transmission through the PTO to rotate; anda clutch disposed in series with the PTO, the hydraulic pump, and the electric motor, the clutch for disengaging the PTO from the hydraulic pump, wherein the electric motor, the hydraulic pump, and the clutch are coupled to the through shaft. 2. The vehicle drive system of claim 1, wherein the clutch is integrated with the PTO. 3. The vehicle drive system of claim 1 or 2, wherein the hydraulic pump can both provide power to the electric motor and to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. 4. The system of claim 1 or 2 further comprising: a control system for allowing the rechargeable energy source to be charged to a first level when grid charging is available and to a second level when grid charging is not available, the second level being more than the first level. 5. The system of claim 4 wherein the control system occasionally charges to a third level to effect battery conditioning. 6. The vehicle drive system of claim 1 or 2, wherein the system is configured so that equipment can be powered during recharging of the first rechargeable power source by driving the electric motor via the PTO and driving the hydraulic pump for the equipment. 7. The vehicle drive system of claim 1 or 2, wherein the electric motor is driven by the PTO to charge the rechargeable power source while driving the hydraulic pump. 8. The system of claim 1 or 2, wherein the system uses regenerative braking and the regenerative braking is disabled for an ignition cycle in the event of an anti-lock breaking event. 9. The vehicle drive system of claim 1 or 2, wherein the clutch is disposed between the PTO and the hydraulic pump, wherein the clutch is engaged to increase power to the electric motor or the hydraulic pump during regenerative braking or when power is provided by the hydraulic pump or the electric motor to the prime mover driven transmission. 10. The vehicle drive system of claim 1 or 2, wherein the through shaft is disposed through the hydraulic pump. 11. The vehicle drive system of claim 1 or 2, wherein the through shaft is provided through the electric motor. 12. The vehicle drive system of claim 1 or 2, wherein the vehicle provides power to an electric grid from the electric motor or the rechargeable power source. 13. The vehicle drive system of claim 1 or 2, wherein the electric motor charges the rechargeable power source and the first prime mover powers a hydraulic system. 14. The vehicle drive system of claim 1 or 2, wherein the PTO is disconnected from the first prime mover during steady state highway use. 15. The vehicle drive system of claim 1 or 2, wherein the system is configured so that the rechargeable power source can be charged by any of: the first prime mover, an electrical grid, an auxiliary power source, or regenerative braking. 16. The system of claim 1 or 2 further comprising a control system, the control system providing power from the hydraulic pump via the electric motor, wherein the control system causes the hydraulic pump to receive supplemental power from the first prime mover during a digging application. 17. A hybrid vehicle drive system for use with a first prime mover and a first transmission driven by the first prime mover, the system comprising: a through shaft;an electric motor coupled to a rechargeable energy source;a PTO, wherein the first prime mover is configured to provide power through the first transmission to the PTO to operate the electric motor, and the electric motor is configured to provide power to a drive shaft through the PTO;a hydraulic pump operated through operation of the electric motor; anda clutch disposed between the hydraulic pump and the PTO, wherein the through shaft is coupled to the electric motor, the hydraulic pump, and the clutch. 18. The system according to claim 17, wherein the electric motor operates the hydraulic pump when the first prime mover is off for idle reduction. 19. The system according to claim 17, wherein the PTO is configured to be engaged and disengaged while the first transmission is moving. 20. The system according to claim 17, wherein the through shaft is provided through the electric motor. 21. A method of operating a hybrid vehicle drive system comprising a prime mover, a prime mover driven transmission, an electric motor operable to power a drive shaft alone or in combination with the first prime mover, a PTO operable to transfer power between the prime mover driven transmission and the electric motor, a first energy source operable to provide power to or receive power from the electric motor, the electric motor being coupled to a through shaft, the through shaft being coupled to a hydraulic pump, the method comprising: disengaging a clutch to remove the hydraulic pump from receiving power from the PTO; andpowering the hydraulic pump through the operation of the electric motor via the through shaft. 22. The method of claim 21: wherein the electric motor does not provide power to the prime mover driven transmission or wherein the electric motor is powered through operation of the hydraulic pump. 23. The method of claim 21, further comprising: engaging or disengaging the PTO from the prime mover driven transmission when portions of the hybrid vehicle drive system other than the first prime mover do not require or can be damaged by a connection to the first prime mover. 24. The method of claim 21, further comprising operating the first prime mover to simultaneously provide power to the drive shaft and the electric motor through the prime mover driven transmission. 25. The method of claim 21, 22, 23 or 24, further comprising: controlling torque and power output of the electric motor and hydraulic pump so that the electric motor and the hydraulic pump are operated such that a capacity of the PTO is not exceeded. 26. The method of claim 25 wherein the torque of the prime mover is monitored along with the torque from the electric motor to ensure that a turbine torque limit is not exceeded. 27. In a hybrid vehicle using a drive system comprising a first prime mover, a first prime mover driven transmission, an electric motor, a first energy source, and a PTO, wherein the electric motor is configured to recharge the first energy source or is powered by the first energy source, wherein the first prime mover is configured to provide power through the first prime mover driven transmission and the PTO to operate the electric motor, and wherein the electric motor is configured to provide power to a drive shaft through the PTO, a hydraulic system comprising: a through shaft;a hydraulic pump coupled to the electric motor, the hydraulic pump configured to be operated through the operation of the electric motor; anda clutch disposed between the PTO and the electric motor, wherein the through shaft is coupled to the hydraulic pump, the electric motor and the clutch. 28. A hybrid drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable energy source, and a PTO, the hybrid vehicle drive system comprising: a through shaft;a first electric motor electrically coupled to the rechargeable energy source and mechanically coupled to the through shaft, the first electric motor capable of providing power to the first prime mover driven transmission via the PTO;a hydraulic pump mechanically coupled to the through shaft; anda clutch in mechanical communication with the PTO and mechanically coupled to the through shaft, wherein the clutch can receive power from the prime mover driven transmission through the PTO and provide the power from the prime mover driven transmission to the hydraulic pump via the through shaft, wherein the hydraulic pump does not receive power from the prime mover driven transmission when the clutch disconnects the PTO from the through shaft. 29. The system of claim 28, wherein the clutch disengages the power from the first prime mover driven transmission through the PTO to reduce friction.
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