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公开(公告)号：US10393232B2
公开(公告)日：2019-08-27
申请号：US15596498
申请日：2017-05-16
Applicant: GM Global Technology Operations LLC
Inventor： David C. Webert , Todd R. Berger
Abstract: A method of operating a motor vehicle transmission includes measuring an operating temperature of the transmission, the transmission having at least seven torque transmitting mechanisms and at least three planetary gear sets, each planetary gear set having three gear members; determining if the transmission is in a park mode; determining if the operating temperature is below a predetermined threshold; if the operating temperature is below the predetermined threshold and the transmission is the park mode, implementing a shift delay mitigation process that includes engaging a fourth torque transmitting mechanism and a firth torque transmitting mechanism of the at least seven torque transmitting mechanisms so that they are locked to a ground to prevent a first gear member of the first planetary gear set from moving, which, in turn, prevents an input torque being transferred to a park pawl.
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2.发明授权公开(公告)号：US09587684B2
公开(公告)日：2017-03-07
申请号：US14623821
申请日：2015-02-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David C. Webert , Scott D. Biggs
CPC classification number: F16D48/00 , F16D48/02 , F16D2048/0254 , F16D2048/0284
Abstract: A method of regulating a clutch assembly that has a set of clutch plates and a clutch piston with a fluid seal in an automatic transmission that includes a hydraulic circuit is disclosed. The method includes commanding the hydraulic circuit via the controller to apply a first hydraulic force to the clutch piston to displace the clutch piston relative to the set of clutch plates in order to affect a shift between speed-ratios in the transmission. The method also includes determining a drag force of the fluid seal. The method also includes determining a velocity of the displaced clutch piston that results from the drag force of the fluid seal acting counter to the displacement of the clutch piston. The method additionally includes regulating the clutch assembly to compensate for the determined drag force of the fluid seal acting counter to the displacement of the clutch piston.
Abstract translation: 公开了一种在包括液压回路的自动变速器中调节离合器组件的方法，该离合器组件具有一组离合器片和具有流体密封的离合器活塞。 该方法包括通过控制器指令液压回路，以向离合器活塞施加第一液压力，以使离合器活塞相对于一组离合器板移动，以便影响变速器中变速比之间的偏移。 该方法还包括确定流体密封件的阻力。 该方法还包括确定由与离合器活塞的位移相反的流体密封件的阻力所导致的位移离合器活塞的速度。 该方法还包括调节离合器组件以补偿确定的与离合器活塞的位移相反的流体密封件的阻力。
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3.发明授权公开(公告)号：US08965653B2
公开(公告)日：2015-02-24
申请号：US13949295
申请日：2013-07-24
Applicant: GM Global Technology Operations LLC
Inventor： Kristopher J. Kokko , Dara Monajemi , David C. Webert , Amanda P. Igel
CPC classification number: F16D48/06 , B60W10/02 , B60W10/10 , F16D48/062 , F16D2500/1026 , F16D2500/3065 , F16D2500/30803 , F16D2500/3144 , F16D2500/3166 , F16D2500/5085 , F16D2500/70217 , F16D2500/70282 , F16D2500/70406 , Y02T10/76 , Y10T477/6237 , Y10T477/743 , Y10T477/78
Abstract: A vehicle transmission includes a plurality of oncoming clutches that are hydraulically-actuated. A controller is operatively connected to the plurality of oncoming clutches. An algorithm stored on and executable by the controller causes the controller to determine if at least one predefined coast condition is met and identify the plurality of oncoming clutches configured to be engageable during a downshift event from an initial gear ratio to respective other gear ratios. The initial gear ratio is greater than each of the respective other gear ratios. The algorithm causes the controller to generate a first pressure command to at least partially pressurize a first one of the oncoming clutches to a first staging pressure (PS1) if the at least one predefined coast condition is met prior to the downshift event. The first staging pressure (PS1) is defined as a first return spring pressure (PR1) minus a first variable correction factor (CF1).
Abstract translation: 车辆变速器包括液压致动的多个迎面而来的离合器。 控制器可操作地连接到多个迎面而来的离合器。 存储在控制器上并且可由控制器执行的算法使得控制器确定是否满足至少一个预定义的滑行条件，并且识别被配置为在从初始齿轮比到相应的其它传动比的降档事件期间可接合的多个迎面而来的离合器。 初始齿轮比大于各自的其它齿轮比。 如果在降档事件之前满足至少一个预定的滑行条件，该算法使得控制器产生第一压力命令，以使至少部分地将迎面而来的离合器中的第一个离合器加压到第一分段压力（PS1）。 第一分级压力（PS1）被定义为第一复位弹簧压力（PR1）减去第一可变校正系数（CF1）。
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4.发明申请公开(公告)号：US20150032341A1
公开(公告)日：2015-01-29
申请号：US13949295
申请日：2013-07-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kristopher J. Kokko , Dara Monajemi , David C. Webert , Amanda P. Igel
CPC classification number: F16D48/06 , B60W10/02 , B60W10/10 , F16D48/062 , F16D2500/1026 , F16D2500/3065 , F16D2500/30803 , F16D2500/3144 , F16D2500/3166 , F16D2500/5085 , F16D2500/70217 , F16D2500/70282 , F16D2500/70406 , Y02T10/76 , Y10T477/6237 , Y10T477/743 , Y10T477/78
Abstract: A vehicle transmission includes a plurality of oncoming clutches that are hydraulically-actuated. A controller is operatively connected to the plurality of oncoming clutches. An algorithm stored on and executable by the controller causes the controller to determine if at least one predefined coast condition is met and identify the plurality of oncoming clutches configured to be engageable during a downshift event from an initial gear ratio to respective other gear ratios. The initial gear ratio is greater than each of the respective other gear ratios. The algorithm causes the controller to generate a first pressure command to at least partially pressurize a first one of the oncoming clutches to a first staging pressure (PS1) if the at least one predefined coast condition is met prior to the downshift event. The first staging pressure (PS1) is defined as a first return spring pressure (PR1) minus a first variable correction factor (CF1).
Abstract translation: 车辆变速器包括液压致动的多个迎面而来的离合器。 控制器可操作地连接到多个迎面而来的离合器。 存储在控制器上并且可由控制器执行的算法使得控制器确定是否满足至少一个预定义的滑行条件，并且识别被配置为在从初始齿轮比到相应的其它传动比的降档事件期间可接合的多个迎面而来的离合器。 初始齿轮比大于各自的其它齿轮比。 如果在降档事件之前满足至少一个预定的滑行条件，该算法使得控制器产生第一压力命令，以使至少部分地将迎面而来的离合器中的第一个离合器加压到第一分段压力（PS1）。 第一分级压力（PS1）被定义为第一复位弹簧压力（PR1）减去第一可变校正系数（CF1）。
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5.发明授权公开(公告)号：US10514094B2
公开(公告)日：2019-12-24
申请号：US15648866
申请日：2017-07-13
Applicant: GM Global Technology Operations LLC
Inventor： Todd R. Berger , David C. Webert , Roberto Diaz , David H. Moiseev , Joseph V. Pittiglio , Dustin A. Nygaard
Abstract: A method for controlling internal electronic range selection for an automatic transmission includes: confirming if a range change command has been ordered from a current transmission operating state; verifying expected performance from at least first and second mode valves and a park servo are present in the current transmission operating state prior to allowing a range change event; during the range change event: generating proactive commands including ordering a reduction in a hydraulic system pressure; and identifying if an unexpected event is detected; and following completion of the range change event confirming expected performance is obtained from at least the first and second mode valves and the park servo to achieve a driver intended state.
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Patent Agency Ranking
公开(公告)号：US20180335133A1
公开(公告)日：2018-11-22
申请号：US15596498
申请日：2017-05-16
Applicant: GM Global Technology Operations LLC
Inventor： David C. Webert , Todd R. Berger
CPC classification number: F16H3/66 , F16H59/72 , F16H61/0059 , F16H63/48 , F16H63/486 , F16H2200/0065 , F16H2200/201 , F16H2200/2048 , F16H2200/2066 , F16H2200/2082
Abstract: A method of operating a motor vehicle transmission includes measuring an operating temperature of the transmission, the transmission having at least seven torque transmitting mechanisms and at least three planetary gear sets, each planetary gear set having three gear members; determining if the transmission is in a park mode; determining if the operating temperature is below a predetermined threshold; if the operating temperature is below the predetermined threshold and the transmission is the park mode, implementing a shift delay mitigation process that includes engaging a fourth torque transmitting mechanism and a firth torque transmitting mechanism of the at least seven torque transmitting mechanisms so that they are locked to a ground to prevent a first gear member of the first planetary gear set from moving, which, in turn, prevents an input torque being transferred to a park pawl.
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7.发明授权公开(公告)号：US10030722B2
公开(公告)日：2018-07-24
申请号：US15345566
申请日：2016-11-08
Applicant: GM Global Technology Operations LLC
Inventor： Roberto Diaz , David C. Webert , Patrick M. Gibson
CPC classification number: F16D48/06 , F16D41/125 , F16D2500/10412 , F16D2500/10493 , F16D2500/1085 , F16D2500/30406 , F16D2500/30415 , F16D2500/3065 , F16D2500/30814 , F16D2500/3166 , F16D2500/502 , F16D2500/70408 , F16D2500/70426 , F16D2500/7082 , F16D2500/7108
Abstract: A system for determining when a selectable one-way clutch has mechanically released includes an update timer identifying if each of a converter model engine torque, a transmission input torque, and a torque converter slip are positive for a predetermined period of time. An SOWC slip value is calculated using an output signal from each of: at least one transmission internal speed sensor producing an output signal representative of a speed of an internal component of a transmission; and at least one transmission output speed sensor producing an output signal representative of a speed of an output of the transmission. An SOWC released signal is issued if either all of the measured converter model engine torque, the measured transmission input torque, and the measured torque converter slip are positive for at least the predetermined period of time, or the calculated SOWC slip value is greater than a predetermined threshold.
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8.发明申请公开(公告)号：US20160238086A1
公开(公告)日：2016-08-18
申请号：US14623821
申请日：2015-02-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David C. Webert , Scott D. Biggs
CPC classification number: F16D48/00 , F16D48/02 , F16D2048/0254 , F16D2048/0284
Abstract: A method of regulating a clutch assembly that has a set of clutch plates and a clutch piston with a fluid seal in an automatic transmission that includes a hydraulic circuit is disclosed. The method includes commanding the hydraulic circuit via the controller to apply a first hydraulic force to the clutch piston to displace the clutch piston relative to the set of clutch plates in order to affect a shift between speed-ratios in the transmission. The method also includes determining a drag force of the fluid seal. The method also includes determining a velocity of the displaced clutch piston that results from the drag force of the fluid seal acting counter to the displacement of the clutch piston. The method additionally includes regulating the clutch assembly to compensate for the determined drag force of the fluid seal acting counter to the displacement of the clutch piston.
Abstract translation: 公开了一种在包括液压回路的自动变速器中调节离合器组件的方法，该离合器组件具有一组离合器片和具有流体密封的离合器活塞。 该方法包括通过控制器指令液压回路，以向离合器活塞施加第一液压力，使离合器活塞相对于一组离合器板移动，以便影响变速器中变速比之间的偏移。 该方法还包括确定流体密封件的阻力。 该方法还包括确定由与离合器活塞的位移相反的流体密封件的阻力所导致的位移离合器活塞的速度。 该方法还包括调节离合器组件以补偿确定的与离合器活塞的位移相反的流体密封件的阻力。
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公开(公告)号：US20140309899A1
公开(公告)日：2014-10-16
申请号：US13934299
申请日：2013-07-03
Applicant: GM Global Technology Operations LLC
Inventor： Dongxu Li , Timothy R. Stockdale , David C. Webert
IPC: F16D48/06
CPC classification number: F16D48/06 , F16D48/00 , F16D48/02 , F16D48/062 , F16D48/066 , F16D2500/30816 , F16D2500/30825 , F16D2500/3166 , F16D2500/70426 , F16H61/143 , F16H2061/145
Abstract: A control system for a transmission of a vehicle includes a first angular rotation module, a second angular rotation module, and a slip module. The first angular rotation module determines a first angular rotation of a first component of the transmission during a predetermined period based on a first signal generated by a first sensor. The second angular rotation module determines a second angular rotation of a second component of the vehicle during the predetermined period based on a second signal generated by a second sensor. The slip module selectively indicates that a clutch of the transmission is slipping based on the first angular rotation and the second angular rotation.
Abstract translation: 用于车辆变速器的控制系统包括第一角度旋转模块，第二角度旋转模块和滑动模块。 第一角度旋转模块基于由第一传感器产生的第一信号，在预定时段期间确定传输的第一分量的第一角度旋转。 第二角度旋转模块基于由第二传感器产生的第二信号在预定时段期间确定车辆的第二部件的第二角度旋转。 滑动模块选择性地指示传动装置的离合器基于第一角度旋转和第二角度旋转而滑动。
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10.发明申请公开(公告)号：US20190017592A1
公开(公告)日：2019-01-17
申请号：US15648866
申请日：2017-07-13
Applicant: GM Global Technology Operations LLC
Inventor： Todd R. Berger , David C. Webert , Roberto Diaz , David H. Moiseev , Joseph V. Pittiglio , Dustin A. Nygaard
CPC classification number: F16H61/12 , F16H59/08 , F16H61/30 , F16H63/3483 , F16H63/48 , F16H2061/1208 , F16H2061/1264 , F16H2061/1288 , F16H2300/18
Abstract: A method for controlling internal electronic range selection for an automatic transmission includes: confirming if a range change command has been ordered from a current transmission operating state; verifying expected performance from at least first and second mode valves and a park servo are present in the current transmission operating state prior to allowing a range change event; during the range change event: generating proactive commands including ordering a reduction in a hydraulic system pressure; and identifying if an unexpected event is detected; and following completion of the range change event confirming expected performance is obtained from at least the first and second mode valves and the park servo to achieve a driver intended state.
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