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公开(公告)号:US20160031445A1
公开(公告)日:2016-02-04
申请号:US14449220
申请日:2014-08-01
Applicant: GM Global Technology Operations LLC
Inventor: Jason Jousma
IPC: B60W30/18 , B60W10/10 , B60W10/06 , B60W30/188 , B60W10/02
CPC classification number: B60W30/18009 , B60W10/023 , B60W10/06 , B60W10/10 , B60W30/188 , F16H61/04 , F16H63/50
Abstract: A method is provided for use in a vehicle. The vehicle includes a transmission, a turbocharger, a transmission control module (TCM), an engine, and an engine control module (ECM). The engine includes a crankshaft that rotates at an engine speed and the turbocharger includes a turbine that rotates at a turbine speed. The method includes requesting a downshift of the transmission from an off-going gear ratio to an on-coming gear ratio. The turbine is rotating at an off-going turbine speed at the off-going gear ratio and the turbine is configured to rotate at an on-coming turbine speed at the on-coming gear ratio, greater than the off-going gear speed. A determination is made that the requested downshift is a powerdown low-throttle shift. An engine speed request value is then transmitted from the TCM to the ECM. The transmitted engine speed request value is at least equal to the on-coming gear speed.
Abstract translation: 提供一种用于车辆的方法。 车辆包括变速器,涡轮增压器,变速器控制模块(TCM),发动机和发动机控制模块(ECM)。 发动机包括以发动机转速旋转的曲轴,涡轮增压器包括以涡轮转速旋转的涡轮机。 该方法包括请求将变速器从越野变速比降档到接通变速比。 涡轮机以离轴变速比的不断变化的涡轮机转速旋转,并且涡轮被构造成以接通的传动比在即将到来的涡轮机转速下旋转,大于远离齿轮速度。 确定所请求的降档是低功率低油位换档。 然后,发动机速度请求值从TCM发送到ECM。 发送的发动机速度请求值至少等于接通的速度。
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公开(公告)号:US10047856B2
公开(公告)日:2018-08-14
申请号:US15350514
申请日:2016-11-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Kristopher J Kokko , Thomas Weglarz , Patrick M Gibson , Jason Jousma
Abstract: A method for adjusting clutch fill command pressure for a transmission using a lubrication compensator model includes determining clutch fill line pressure and lubrication compensator model pressures, and adjusting the clutch fill command pressure to achieve the lubrication compensator model pressure based on the torque converter clutch status.
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3.
公开(公告)号:US10161512B2
公开(公告)日:2018-12-25
申请号:US15245909
申请日:2016-08-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Brian M Porto , Jason Jousma , Patrick A Lewis , Jason M France
Abstract: A transmission includes a torque converter with an impeller, a turbine, a torque converter clutch, a hydraulic torque converter clutch control circuit and a controller that commands a first pressure into the hydraulic torque converter clutch control circuit during a transition period between a torque converter clutch OFF mode to a torque converter clutch ON mode and prior to the torque converter clutch reaching capacity and a second pressure into the hydraulic torque converter clutch control circuit after the torque converter clutch reaches capacity.
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4.
公开(公告)号:US20180135747A1
公开(公告)日:2018-05-17
申请号:US15350514
申请日:2016-11-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Kristopher J Kokko , Thomas Weglarz , Patrick M Gibson , Jason Jousma
CPC classification number: F16H61/143 , F16D48/02 , F16D2048/0203 , F16D2300/06 , F16D2500/1026 , F16D2500/3024 , F16D2500/30401 , F16D2500/3067 , F16D2500/30803 , F16D2500/3144 , F16D2500/5014 , F16H63/46
Abstract: A method for adjusting clutch fill command pressure for a transmission using a lubrication compensator model includes determining clutch fill line pressure and lubrication compensator model pressures, and adjusting the clutch fill command pressure to achieve the lubrication compensator model pressure based on the torque converter clutch status.
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5.
公开(公告)号:US20180058576A1
公开(公告)日:2018-03-01
申请号:US15245909
申请日:2016-08-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Brian M. Porto , Jason Jousma , Patrick A. Lewis , Jason M. France
CPC classification number: F16H61/14 , F16H45/02 , F16H61/143 , F16H2061/145
Abstract: A transmission includes a torque converter with an impeller, a turbine, a torque converter clutch, a hydraulic torque converter clutch control circuit and a controller that commands a first pressure into the hydraulic torque converter clutch control circuit during a transition period between a torque converter clutch OFF mode to a torque converter clutch ON mode and prior to the torque converter clutch reaching capacity and a second pressure into the hydraulic torque converter clutch control circuit after the torque converter clutch reaches capacity.
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公开(公告)号:US09771075B2
公开(公告)日:2017-09-26
申请号:US14449220
申请日:2014-08-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Jason Jousma
CPC classification number: B60W30/18009 , B60W10/023 , B60W10/06 , B60W10/10 , B60W30/188 , F16H61/04 , F16H63/50
Abstract: A method is provided for use in a vehicle. The vehicle includes a transmission, a turbocharger, a transmission control module (TCM), an engine, and an engine control module (ECM). The engine includes a crankshaft that rotates at an engine speed and the turbocharger includes a turbine that rotates at a turbine speed. The method includes requesting a downshift of the transmission from an off-going gear ratio to an on-coming gear ratio. The turbine is rotating at an off-going turbine speed at the off-going gear ratio and the turbine is configured to rotate at an on-coming turbine speed at the on-coming gear ratio, greater than the off-going gear speed. A determination is made that the requested downshift is a powerdown low-throttle shift. An engine speed request value is then transmitted from the TCM to the ECM. The transmitted engine speed request value is at least equal to the on-coming gear speed.
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