[특허]Clutch and electric machine control for driveline damping

Clutch and electric machine control for driveline damping 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60W-020/10 B60L-015/20 B60W-010/02 B60W-010/08 B60W-030/20 B60K-006/387 B60K-006/547 B60W-020/19 B60W-020/17 B60K-006/48
출원번호	US-0478194 (2014-09-05)
등록번호	US-9988036 (2018-06-05)
발명자 / 주소	Nefcy, Bernard D. Colvin, Daniel Scott Nedorezov, Felix
출원인 / 주소	Ford Global Technologies, LLC
대리인 / 주소	Kelley, David B.
인용정보	피인용 횟수 : 0 인용 특허 : 37

초록 ▼

A vehicle includes an engine, a traction motor, a clutch, and a controller. The clutch selectively couples the traction motor to wheels. The controller, in response to a torque output by the fraction motor achieving a torque limit while operating to partially satisfy a demand for driveline damping a

대표청구항 ▼

1. A method of controlling a vehicle comprising: in response to a torque output by an electric machine achieving a torque limit while operating to partially satisfy a demand for driveline damping and while a clutch, coupling the electric machine and wheels, is locked, reducing the torque output and increasingly slip the clutch to completely satisfy the demand for driveline damping. 2. The method of claim 1, wherein the torque limit decreases as a state of charge of a battery configured to supply power to the electric machine decreases. 3. The method of claim 1, wherein the torque limit changes as a temperature of a battery configured to supply power to the electric machine changes. 4. The method of claim 1, wherein the torque limit changes as a temperature of the electric machine changes. 5. The method of claim 1, wherein the clutch is a lock-up clutch of a torque converter. 6. A vehicle comprising: an engine;a traction motor;a clutch configured to selectively couple the motor to wheels; anda controller configured to, in response to a torque output by the traction motor achieving a torque limit while operating to partially satisfy a demand for driveline damping and while the clutch is locked, reduce the torque output and increasingly slip the clutch to completely satisfy the demand for driveline damping. 7. The vehicle of claim 6, further comprising a torque converter, wherein the clutch is a lock-up clutch of the torque converter. 8. The vehicle of claim 6, wherein the torque limit decreases as a state of charge of a battery configured to supply power to the traction motor decreases. 9. The vehicle of claim 6, wherein the torque limit changes as a temperature of a battery configured to supply power to the traction motor changes. 10. The vehicle of claim 6, wherein the torque limit changes as a temperature of the traction motor changes. 11. A method of controlling a vehicle comprising: in response to an engine charging a battery configured to supply power to an electric machine while the electric machine is supplying torque to at least partially satisfy a given demand for driveline damping, reducing the torque and increasing slip of a clutch coupling the electric machine and wheels based on a torque limit of the electric machine. 12. The method of claim 11, wherein an amount of the increase is greater when the electric machine is supplying the torque at the torque limit as compared with when the electric machine is supplying the torque less than the torque limit. 13. The method of claim 11, wherein the reduced torque and increased slip act to completely satisfy the given demand for driveline damping. 14. The method of claim 11, wherein the torque limit decreases as a state of charge of the battery decreases. 15. The method of claim 11, wherein the torque limit changes as a temperature of the battery changes. 16. The method of claim 11, wherein the torque limit changes as a temperature of the electric machine changes. 17. The method of claim 11, wherein the clutch is a lock-up clutch of a torque converter.

이 특허에 인용된 특허 (37)

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Clutch and electric machine control for driveline damping 원문보기

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Clutch and electric machine control for driveline damping 원문보기

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