Method for operating a motor vehicle in trailing throttle mode
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60K-026/00
F16D-048/06
F16H-059/42
F16H-061/688
F16H-059/18
출원번호
US-0112665
(2011-09-17)
등록번호
US-9126481
(2015-09-08)
우선권정보
DE-10 2011 018 325 (2011-04-20)
국제출원번호
PCT/EP2011/004666
(2011-09-17)
§371/§102 date
20131220
(20131220)
국제공개번호
WO2012/143022
(2012-10-26)
발명자
/ 주소
Winkler, Josef
Ertel, Rainer
Hinkel, Gerhard
Nitz, Lars
Schafer, Bernd
출원인 / 주소
AUDI AG
대리인 / 주소
Henry M. Feiereisen LLC
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
In a motor vehicle with an adjustable coupling (intermediate device) between the (crank)shaft and floor contact elements (wheels), wherein the coupling is set in trailing throttle mode in such a way that the rotational speed of the shaft is reduced, in particular is adjusted to a predefined value, i
In a motor vehicle with an adjustable coupling (intermediate device) between the (crank)shaft and floor contact elements (wheels), wherein the coupling is set in trailing throttle mode in such a way that the rotational speed of the shaft is reduced, in particular is adjusted to a predefined value, in order to reduce the internal losses of the drive, in particular an internal combustion engine.
대표청구항▼
1. A method for operating a motor vehicle, comprising: detecting by a control device during a drive of the vehicle whether the vehicle moves in trailing throttle mode;when the vehicle moves in trailing throttle mode, decreasing a rotational speed of a shaft driven by a drive of the motor vehicle by
1. A method for operating a motor vehicle, comprising: detecting by a control device during a drive of the vehicle whether the vehicle moves in trailing throttle mode;when the vehicle moves in trailing throttle mode, decreasing a rotational speed of a shaft driven by a drive of the motor vehicle by automatically setting a regulating variable andcausing an intermediate device, which couples the shaft with ground contact elements of the motor vehicle via a transmission, to assume one of multiple intermediate states between being disengaged and being fully engaged, said intermediate state being commensurate with the regulating variable, and transferring a torque between the drive and the intermediate device as a function of the intermediate state, wherein the rotational speed of the shaft and a rotational speed of the intermediate device differ from each other in the intermediate state resulting in a clutch slip;and after lowering the rotational speed of the shaft, reducing the clutch slip by lowering a rotational speed of an input shaft of the transmission through a change of gears. 2. The method of claim 1, wherein the rotational speed of the shaft in the trailing throttle mode is set to a predetermined value. 3. The method of claim 2, wherein the rotational speed of the shaft is adjusted by open loop control. 4. The method of claim 2, wherein the predetermined value lies above a value for the rotational speed of the shaft at which a control device of the motor vehicle would cause a consumption of energy by the drive in the trailing throttle mode. 5. The method of claim 1, wherein the drive is constructed as internal combustion engine. 6. The method of claim 5, wherein the drive has a crankshaft. 7. The method of claim 1, wherein the intermediate device comprises a clutch with or without transmission. 8. The method of claim 1, wherein the motor vehicle has a automatic twin clutch transmission. 9. The method of claim 1, wherein the ground contact elements are constructed as wheels. 10. A motor vehicle, comprising: a drive, in particular an internal combustion engine, having a shaft;an intermediate device coupling the drive with ground contact elements of the motor vehicle via a transmission;a device for varying a regulating variable regarding the intermediate device, said regulating variable defining a torque which is transmitted via the intermediate device; anda device for detecting whether the motor vehicle moves in a trailing throttle mode,wherein the device for varying the regulating variable is configured to automatically lower the rotational speed of the shaft in the trailing throttle mode by varying the regulating variable, thereby causing the intermediate device to assume one of multiple intermediate states between being disengaged and being fully engaged, said intermediate state being commensurate with the regulating variable, wherein a torque transferred between the drive and the intermediate device is a function of the intermediate state, and wherein the rotational speed of the shaft and a rotational speed of the intermediate device differ from each other in the intermediate state resulting in a clutch slip; and wherein said device is further configuredafter lowering the rotational speed of the shaft, reducing the clutch slip by lowering a rotational speed of an input shaft of the transmission through a change of gears. 11. The motor vehicle of claim 10, wherein the intermediate device comprises a clutch and a transmission, and wherein the ground contact elements are constructed as wheels. 12. Motor vehicle according to claim 10, further comprising a twin clutch transmission with multiple gears, characterized in that a device for varying the actuating parameter includes a control device which is configured to cause a change of gears in the trailing throttle mode after lowering the rotational speed.
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이 특허에 인용된 특허 (8)
Matsubara Toru (Toyota JPX) Iwatsuki Kunihiro (Toyota JPX), Apparatus for controlling slip of lock-up clutch on motor vehicle during deceleration of the vehicle.
Okino Yoshinori (Hiroshima JPX) Noguchi Naoyuki (Hiroshima JPX) Kita Tatsuya (Hiroshima JPX) Shigemura Takuro (Hiroshima JPX), Control apparatus for a vehicle engine equipped with an automatic transmission.
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