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公开(公告)号：US20170130834A1
公开(公告)日：2017-05-11
申请号：US14935574
申请日：2015-11-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhen J. Zhang , Paul G. Otanez , Shushan Bai
IPC: F16H61/662 , F16H9/18
CPC classification number: F16H61/66272 , F16H9/18 , F16H59/44
Abstract: A powertrain system including an internal combustion engine rotatably coupled to a variator of a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining an actual speed ratio, a desired speed ratio and a commanded speed ratio. A total speed ratio change rate is determined based upon the actual speed ratio, the desired speed ratio and the commanded speed ratio, and a commanded speed ratio trajectory is determined based upon the desired speed ratio and the commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory, and a shift force is determined based upon the total speed ratio change rate and the ratio change coefficient. A primary pulley force and a secondary pulley force for the CVT are controlled based upon the shift force and the force ratio factor.
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公开(公告)号：US09574622B2
公开(公告)日：2017-02-21
申请号：US13857429
申请日：2013-04-05
Applicant: GM Global Technology Operations LLC
Inventor： Craig S. Ross , Paul G. Otanez
CPC classification number: F16D25/14 , F16D48/02 , F16D48/0206 , F16D2048/0203 , F16D2048/0221 , F16D2048/0233 , F16D2048/0263 , F16D2048/0266 , F16D2048/0275 , F16H3/62 , F16H61/0267 , F16H2061/0279 , F16H2200/201 , F16H2200/2043 , F16H2312/14 , F16K31/122
Abstract: A system is provided for latching and draining a torque transmitting device. The system may include a clutch feed channel having an inlet portion and a clutch portion. The inlet portion is configured to provide hydraulic fluid from a pressurized source to the clutch portion. The clutch portion is configured to provide hydraulic fluid to a torque transmitting device. An inlet valve connects the inlet portion of the clutch feed channel to the clutch portion of the clutch feed channel. The inlet valve is configured to open to allow the hydraulic fluid to flow from the inlet portion to the clutch portion when the torque transmitting device is engaged. The inlet valve is configured to close and to trap hydraulic fluid within the torque transmitting device when the torque transmitting device is not actively pressurized. A multispeed transmission is also provided.
Abstract translation: 提供一种用于锁定和排出扭矩传递装置的系统。 该系统可以包括具有入口部分和离合器部分的离合器进给通道。 入口部分构造成将液压流体从加压源提供给离合器部分。 离合器部分构造成向扭矩传递装置提供液压流体。 入口阀将离合器进料通道的入口部分连接到离合器进料通道的离合器部分。 入口阀构造成打开以允许当扭矩传递装置接合时液压流体从入口部分流动到离合器部分。 当扭矩传递装置没有被主动加压时，入口阀构造成关闭并捕获扭矩传递装置内的液压流体。 还提供了多速传动。
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公开(公告)号：US09249844B2
公开(公告)日：2016-02-02
申请号：US13867495
申请日：2013-04-22
Applicant: GM Global Technology Operations LLC
Inventor： Craig S. Ross , Paul G. Otanez
CPC classification number: F16H47/04 , F16D25/14 , F16D48/02 , F16D48/066 , F16D2048/0203 , F16D2048/0221 , F16D2048/0233 , F16D2048/0257 , F16H3/62 , F16H3/66 , F16H61/0021 , F16H2061/0034 , F16H2200/003 , F16H2200/201 , F16H2312/14
Abstract: A clutch latching system is provided for latching and draining a torque transmitting mechanism. The latching clutch control system may include a latching valve, a release valve, and an accumulator. The clutch latching system may include a clutch feed channel configured to provide hydraulic fluid from a pressurized source to a torque transmitting device when the torque transmitting device is engaged and the engine is running. A latching valve connects the clutch feed channel to the torque transmitting device. The latching valve is configured to selectively trap pressurized hydraulic fluid within the torque transmitting device. A hydraulic pressure storage circuit configured to selectively provide pressurized hydraulic fluid to the latching valve to unlatch the latching valve. A multiple speed transmission is also provided.
Abstract translation: 提供了用于锁定和排出扭矩传递机构的离合器锁定系统。 闩锁离合器控制系统可以包括闭锁阀，释放阀和蓄能器。 离合器锁定系统可以包括离合器进给通道，其构造成当扭矩传递装置接合并且发动机运行时将液压流体从加压源提供给扭矩传递装置。 闭锁阀将离合器进给通道连接到扭矩传递装置。 闭锁阀构造成选择性地将加压的液压流体捕获在扭矩传递装置内。 一种液压存储回路，其构造成选择性地向所述闭锁阀提供加压液压流体以解锁所述闭锁阀。 还提供了多速传动。
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24.发明授权公开(公告)号：US09091329B2
公开(公告)日：2015-07-28
申请号：US13875540
申请日：2013-05-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Paul G. Otanez
CPC classification number: F16H3/44 , F16H3/66 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046
Abstract: A method for controlling a transmission includes the following steps: applying a first assist clutch to interconnect a first stationary member to a first planetary gear set of the transmission; applying a second assist clutch to interconnect a second stationary member to a second planetary gear set of the transmission, wherein the second planetary gear set is coupled to the output member of the transmission; applying a primary clutch to interconnect the first planetary gear set to a third stationary member; reducing a first pressure applied to the first assist clutch of the transmission by a first pressure calibration value; determining whether a gear lash has occurred; and reducing a second pressure applied to the second assist clutch of the transmission.
Abstract translation: 用于控制变速器的方法包括以下步骤：施加第一辅助离合器以将第一固定构件与变速器的第一行星齿轮组互连; 施加第二辅助离合器以将第二固定构件与所述变速器的第二行星齿轮组互连，其中所述第二行星齿轮组联接到所述变速器的输出构件; 施加主离合器以将第一行星齿轮组互连到第三静止构件; 通过第一压力校准值减小施加到变速器的第一辅助离合器的第一压力; 确定是否发生了齿轮间隙; 并且减小施加到变速器的第二辅助离合器的第二压力。
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公开(公告)号：US09028359B2
公开(公告)日：2015-05-12
申请号：US13937443
申请日：2013-07-09
Applicant: GM Global Technology Operations LLC
Inventor： Casie M. Bockenstette , Carlos E. Marin , Paul G. Otanez , Craig S. Ross
CPC classification number: F16H3/62 , F16H3/66 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046 , Y10T477/688
Abstract: A transmission includes an input member, an output member, four planetary gear sets, and a plurality of torque transmitting mechanisms that are selectively engageable to establish at least ten forward speed ratios and at least one reverse speed ratio between the input member and the output member. The transmission further includes one or more locking mechanisms that engage one or more of the plurality of torque transmitting mechanisms during a start/stop event.
Abstract translation: 变速器包括输入构件，输出构件，四个行星齿轮组和多个扭矩传递机构，其可选择性地接合以建立输入构件和输出构件之间的至少十个前进速度比和至少一个倒档速度比 。 变速器还包括一个或多个锁定机构，其在开始/停止事件期间接合多个扭矩传递机构中的一个或多个。
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Patent Agency Ranking
公开(公告)号：US20150018163A1
公开(公告)日：2015-01-15
申请号：US13937443
申请日：2013-07-09
Applicant: GM Global Technology Operations LLC
Inventor： Casie M. Bockenstette , Carlos E. Marin , Paul G. Otanez , Craig S. Ross
IPC: F16H3/62
CPC classification number: F16H3/62 , F16H3/66 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046 , Y10T477/688
Abstract: A transmission includes an input member, an output member, four planetary gear sets, and a plurality of torque transmitting mechanisms that are selectively engageable to establish at least ten forward speed ratios and at least one reverse speed ratio between the input member and the output member. The transmission further includes one or more locking mechanisms that engage one or more of the plurality of torque transmitting mechanisms during a start/stop event.
Abstract translation: 变速器包括输入构件，输出构件，四个行星齿轮组和多个扭矩传递机构，其可选择性地接合以建立输入构件和输出构件之间的至少十个前进速度比和至少一个倒档速度比 。 变速器还包括一个或多个锁定机构，其在开始/停止事件期间接合多个扭矩传递机构中的一个或多个。
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公开(公告)号：US08795119B2
公开(公告)日：2014-08-05
申请号：US13890869
申请日：2013-05-09
Applicant: GM Global Technology Operations LLC
Inventor： Paul G. Otanez , Craig S. Ross
IPC: F16H31/00
CPC classification number: F16D25/00 , F16D48/02 , F16D2048/0209 , F16D2048/0221 , F16D2048/0233 , F16D2048/0263 , F16K31/1221 , F16K31/1223 , F16K51/00 , Y10T137/8593
Abstract: A valve assembly includes a valve body having an input in selective communication with an output, a latching piston disposed within the valve body, a balance spring disposed between the latching piston and the valve body, and a valve piston disposed within the valve body. The input communicates with the output when the valve piston is in a first position and the input does not communicate with the output when the valve piston is in a second position. A diaphragm spring is disposed between the latching piston and the valve piston. A holding spring is disposed between the valve piston and the valve body.
Abstract translation: 阀组件包括具有与输出选择性连通的输入的阀体，设置在阀体内的闭锁活塞，设置在闭锁活塞和阀体之间的平衡弹簧以及设置在阀体内的阀活塞。 当阀活塞处于第一位置时，输入与输出端通信，并且当阀活塞处于第二位置时输入与输出端不连通。 隔膜弹簧设置在闩锁活塞和阀活塞之间。 保持弹簧设置在阀活塞和阀体之间。
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公开(公告)号：US20250128696A1
公开(公告)日：2025-04-24
申请号：US18489215
申请日：2023-10-18
Applicant: GM Global Technology Operations LLC
Inventor： Paul G. Otanez , Juchirl Park , Stuart Walter Parker
Abstract: A system for control of a vehicle includes a plurality of vehicle actuators in electrical communication with a controller. The controller is programmed to determine a predicted path of the vehicle. The controller is further programmed to determine one or more vehicle level control parameters based at least in part on the predicted path of the vehicle. The one or more vehicle level control parameters includes a vehicle level suspension control parameter and a vehicle level motion control parameter. The controller is further programmed to adjust an operation of one or more suspension actuators of the plurality of vehicle actuators based at least in part on the vehicle level suspension control parameter. The controller is further programmed to adjust an operation of one or more motion actuators of the plurality of vehicle actuators based at least in part on the vehicle level motion control parameter.
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公开(公告)号：US20220297691A1
公开(公告)日：2022-09-22
申请号：US17206616
申请日：2021-03-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jacob M. Knueven , Jason C. Jousma , Paul G. Otanez , Aubrey W. Downs, JR. , Joseph D. Hillegass , Abdoulaye T. Diallo
Abstract: A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.
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公开(公告)号：US11242927B2
公开(公告)日：2022-02-08
申请号：US16420608
申请日：2019-05-23
Applicant: GM Global Technology Operations LLC
Inventor： Ramadityanand Bhogadi , Paul G. Otanez
IPC: F16H61/06 , F16H61/662 , F16H9/04
Abstract: A continuously variable transmission control system includes a continuously variable transmission (CVT) including a primary variator pulley and a secondary variator pulley each including a set of pulley members defining a variable-width gap, and a flexible member positioned within the variable-width gap and movable to define a CVT ratio. The transmission control system also includes a primary pulley valve controlling a primary pulley pressure of a fluid to the primary variator pulley, a secondary pulley valve controlling a secondary pulley pressure of the fluid to the secondary variator pulley; and a pulley pressure control system configured to recognize and mitigate pressure oscillations occurring in the primary pulley pressure or in the secondary pulley pressure.
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