公开(公告)号：US09127729B2

公开(公告)日：2015-09-08

申请号：US13968748

申请日：2013-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng Tim Tao ,  Daniel Deras ,  Jayson S. Schwalm ,  Jeryl McIver

IPC: B60W10/02 ,  F16D48/06

CPC classification number: F16D48/06 ,  B60W10/02 ,  F16D48/062 ,  F16D2500/1026 ,  F16D2500/3026 ,  F16D2500/30401 ,  F16D2500/30415 ,  F16D2500/50245 ,  F16D2500/50272 ,  F16D2500/7041 ,  F16D2500/70605 ,  F16D2500/70673 ,  F16H2342/00 ,  F16H2342/042

Abstract: A method of learning a kiss point of a first clutch of a dual clutch transmission includes controlling a rotational speed of the input shaft to be within a pre-determined range. When both the first clutch and the second clutch are determined to be disengaged from the input shaft, and the rotational speed of the input shaft is within the pre-determined range, then the first clutch is moved from a disengaged position into an engaged position. An increase in a rotational speed of a first transmission shaft, which is coupled to the first clutch, is detected. When the increase in the rotational speed of the first transmission shaft is detected, a position of the first clutch is identified. The identified position of the first clutch is saved in a memory of a transmission control module as a learned first clutch kiss point.

Abstract translation: 学习双离合器变速器的第一离合器的接点的方法包括将输入轴的转速控制在预定范围内。 当第一离合器和第二离合器都被确定为与输入轴分离时，并且输入轴的转速在预定范围内时，则第一离合器从脱离位置移动到接合位置。 检测联接到第一离合器的第一传动轴的转速的增加。 当检测到第一传动轴的转速的增加时，识别第一离合器的位置。 第一离合器的识别位置作为学习的第一离合器接点保存在变速器控制模块的存储器中。

公开(公告)号：US09416874B2

公开(公告)日：2016-08-16

申请号：US14313063

申请日：2014-06-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David H. Vu ,  Xuefeng Tim Tao ,  Jayson S. Schwalm ,  Craig J. Hawkins ,  Jeryl McIver

IPC: F16H61/688 ,  F16D48/06

CPC classification number: F16H61/688 ,  F16D48/06 ,  F16D2500/10412 ,  F16D2500/1045 ,  F16D2500/3026 ,  F16D2500/30425 ,  F16D2500/3067 ,  F16D2500/30806 ,  F16D2500/50236 ,  F16D2500/50281 ,  F16D2500/50287 ,  F16D2500/5045 ,  F16D2500/70264 ,  F16D2500/7041 ,  F16D2500/70605 ,  F16D2500/70626 ,  F16H2342/042

Abstract: A method for learning the bite point of a position-controlled clutch in a vehicle having an engine and a transmission includes commanding an engagement of a clutch fork via a controller when the transmission is in park and the engine is idling. The method also includes controlling an apply position of the clutch via the controller, calculating a clutch torque capacity of the clutch, and measuring the apply position via a position sensor. The apply position is recorded as the clutch bite point when the calculated clutch torque capacity equals a calibrated clutch torque capacity. The transmission is then controlled using the recorded clutch bite point. A system includes the transmission, input clutches, and a controller configured to execute the method. A vehicle includes an engine, the transmission, the position-controlled input clutch, and the controller, as well as a clutch position sensor.

Abstract translation: 用于学习具有发动机和变速器的车辆中的位置控制的离合器的咬点的方法包括当变速器处于停车状态并且发动机空转时通过控制器指示离合器拨叉的接合。 该方法还包括经由控制器控制离合器的施加位置，计算离合器的离合器扭矩能力，以及经由位置传感器测量施加位置。 当计算的离合器扭矩容量等于校准的离合器扭矩容量时，应用位置记录为离合器咬合点。 然后使用记录的离合器咬点控制变速箱。 系统包括传输，输入离合器和被配置为执行该方法的控制器。 车辆包括发动机，变速器，位置控制输入离合器和控制器以及离合器位置传感器。

公开(公告)号：US20140358383A1

公开(公告)日：2014-12-04

申请号：US13906735

申请日：2013-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng Tim Tao ,  Matthew Kempeinen ,  Jeryl McIver ,  Christopher Jay Weingartz ,  David H. Vu

IPC: F16H61/04

CPC classification number: F16H61/0403 ,  F16H61/688 ,  F16H2059/425 ,  F16H2061/2823 ,  F16H2061/283 ,  F16H2061/2869 ,  F16H2306/48 ,  F16H2342/042 ,  Y10T74/19284 ,  Y10T477/753

Abstract: A method of identifying a synchronous position of a synchronizer actuator fork includes sensing a deceleration rate of a first shaft, when a synchronizer is positioned in a neutral position, to define a first rate of deceleration. The synchronizer is moved along the first shaft from the neutral position toward a gear with a synchronizer actuator fork. A deceleration rate of the first shaft is sensed, while the synchronizer actuator fork moves the synchronizer along the first shaft, to identify a change from the first rate of deceleration to a second rate of deceleration. The location, of the synchronizer actuator fork relative to the first shaft, at which the rate of acceleration of the first shaft changes from the first rate of deceleration to the second rate of deceleration, is identified as the synchronous position of the synchronizer actuator fork.

Abstract translation: 识别同步器执行器叉的同步位置的方法包括当同步器位于中立位置时检测第一轴的减速度，以限定第一减速度。 同步器沿着第一轴从中立位置向具有同步器执行器叉的齿轮移动。 感测到第一轴的减速率，而同步器执行器叉沿着第一轴移动同步器，以识别从第一减速度到第二减速率的变化。 同步器执行器叉的同步位置被识别为同步器执行器叉相对于第一轴的位置，第一轴的加速度从第一减速度变化到第二减速度。

公开(公告)号：US20180306317A1

公开(公告)日：2018-10-25

申请号：US15496626

申请日：2017-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng T Tao ,  Jeryl McIver ,  Leo P Dion ,  Greg Perantoni

IPC: F16H61/12 ,  F15B1/02 ,  F15B1/033 ,  F16H61/00 ,  F16H61/30

CPC classification number: F16H61/12 ,  F15B1/024 ,  F15B1/033 ,  F15B2201/51 ,  F16H61/0021 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/1212 ,  F16H2061/1284 ,  F16H2061/305

Abstract: A pressure sensor rationality diagnostic for a dual clutch transmission includes a series of sensor tests. One such test includes charging an oil accumulator to a maximum pressure and storing the maximum pressure value. After performing a discharge pressure event and measuring the pressure value, the difference between the max pressure value and the discharge pressure value is calculated to determine if the difference is less than a predetermined threshold. If the difference is less than the predetermined threshold then at least one remedial action is performed which may include a driver alert or default charging mode. Additionally, similar sensor tests are performed to determine if faults exists and, if true, at least one remedial action is performed.

公开(公告)号：US20170074396A1

公开(公告)日：2017-03-16

申请号：US14856085

申请日：2015-09-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Woowon Chung ,  Jeryl McIver

IPC: F16H61/66

CPC classification number: F16H61/66 ,  B60W10/101 ,  B60W2540/106 ,  F16H59/18 ,  F16H2061/009 ,  F16H2061/0096

Abstract: A method of controlling a transmission includes detecting a first inflection point and a second inflection point in the movement of the accelerator pedal. An amplitude between the first inflection point and the second inflection point is then calculated, and a period of time between the first inflection point and the second inflection point is measured. An attenuation coefficient is defined from the amplitude and the measured period of time between the first and second inflection points. A current iteration temporary gear ratio is defined as the gear ratio calculated during the most recent iteration of an iterative gear ratio selection algorithm, and is adjusted with the defined attenuation coefficient to define a current iteration final output gear ratio. The operation of the transmission is then controlled to change the transmission from a previous iteration final output gear ratio to the current iteration final output gear ratio.

Abstract translation: 控制变速器的方法包括检测加速踏板运动中的第一拐点和第二拐点。 然后计算第一拐点和第二拐点之间的幅度，并且测量第一拐点和第二拐点之间的时间段。 衰减系数由第一和第二拐点之间的振幅和测量的时间段定义。 当前迭代临时齿轮比被定义为在迭代齿轮比选择算法的最近迭代期间计算的齿轮比，并且利用所定义的衰减系数来调整以定义当前迭代最终输出齿轮比。 然后控制变速器的操作，以将传动从先前的迭代最终输出齿轮比改变为当前的迭代最终输出齿轮比。

公开(公告)号：US09057434B2

公开(公告)日：2015-06-16

申请号：US13906735

申请日：2013-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng Tim Tao ,  Matthew Kempeinen ,  Jeryl McIver ,  Christopher Jay Weingartz ,  David H. Vu

IPC: G06F7/00 ,  F16H61/04 ,  F16H61/688 ,  F16H61/28

CPC classification number: F16H61/0403 ,  F16H61/688 ,  F16H2059/425 ,  F16H2061/2823 ,  F16H2061/283 ,  F16H2061/2869 ,  F16H2306/48 ,  F16H2342/042 ,  Y10T74/19284 ,  Y10T477/753

Abstract: A method of identifying a synchronous position of a synchronizer actuator fork includes sensing a deceleration rate of a first shaft, when a synchronizer is positioned in a neutral position, to define a first rate of deceleration. The synchronizer is moved along the first shaft from the neutral position toward a gear with a synchronizer actuator fork. A deceleration rate of the first shaft is sensed, while the synchronizer actuator fork moves the synchronizer along the first shaft, to identify a change from the first rate of deceleration to a second rate of deceleration. The location, of the synchronizer actuator fork relative to the first shaft, at which the rate of acceleration of the first shaft changes from the first rate of deceleration to the second rate of deceleration, is identified as the synchronous position of the synchronizer actuator fork.

Abstract translation: 识别同步器执行器叉的同步位置的方法包括当同步器位于中立位置时检测第一轴的减速度，以限定第一减速度。 同步器沿着第一轴从中立位置向具有同步器执行器叉的齿轮移动。 感测到第一轴的减速率，而同步器执行器叉沿着第一轴移动同步器，以识别从第一减速度到第二减速率的变化。 同步器执行器叉的同步位置被识别为同步器执行器叉相对于第一轴的位置，第一轴的加速度从第一减速度变化到第二减速度。

公开(公告)号：US20150051803A1

公开(公告)日：2015-02-19

申请号：US13968748

申请日：2013-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng Tim Tao ,  Daniel Deras ,  Jayson S. Schwalm ,  Jeryl McIver

IPC: F16D48/06

CPC classification number: F16D48/06 ,  B60W10/02 ,  F16D48/062 ,  F16D2500/1026 ,  F16D2500/3026 ,  F16D2500/30401 ,  F16D2500/30415 ,  F16D2500/50245 ,  F16D2500/50272 ,  F16D2500/7041 ,  F16D2500/70605 ,  F16D2500/70673 ,  F16H2342/00 ,  F16H2342/042

Abstract: A method of learning a kiss point of a first clutch of a dual clutch transmission includes controlling a rotational speed of the input shaft to be within a pre-determined range. When both the first clutch and the second clutch are determined to be disengaged from the input shaft, and the rotational speed of the input shaft is within the pre-determined range, then the first clutch is moved from a disengaged position into an engaged position. An increase in a rotational speed of a first transmission shaft, which is coupled to the first clutch, is detected. When the increase in the rotational speed of the first transmission shaft is detected, a position of the first clutch is identified. The identified position of the first clutch is saved in a memory of a transmission control module as a learned first clutch kiss point.

Abstract translation: 学习双离合器变速器的第一离合器的接点的方法包括将输入轴的转速控制在预定范围内。 当第一离合器和第二离合器都被确定为与输入轴分离时，并且输入轴的转速在预定范围内时，则第一离合器从脱离位置移动到接合位置。 检测联接到第一离合器的第一传动轴的转速的增加。 当检测到第一传动轴的转速的增加时，识别第一离合器的位置。 第一离合器的识别位置作为学习的第一离合器接点保存在变速器控制模块的存储器中。

公开(公告)号：US08831845B1

公开(公告)日：2014-09-09

申请号：US13870030

申请日：2013-04-25

Applicant: GM Global Technology Operations LLC

Inventor： Xuefeng Tim Tao ,  Matthew Kempeinen ,  Christopher Jay Weingartz ,  Jeryl McIver ,  David H Vu

IPC: F16H61/00 ,  F16H61/02 ,  F16H61/30 ,  B60W10/10 ,  B60W30/19

CPC classification number: B60W10/113 ,  B60W10/02 ,  B60Y2400/4242 ,  F16H61/30 ,  F16H61/688 ,  F16H2059/6807 ,  F16H2061/283 ,  F16H2061/307 ,  F16H2342/02

Abstract: A method of controlling a dual clutch transmission includes repeatedly moving a synchronizer into interlocking engagement with a first gear with an actuator fork, and repeatedly sensing a position of the actuator fork for each occurrence that the actuator fork moves the synchronizer into the interlocking engagement with the first gear. The sensed positions of the actuator fork are averaged to define a first engaged position of the actuator fork for engaging the first gear. A second engaged position at which the actuator fork couples the synchronizer to a second gear may be determined in the same manner. A neutral position may be determined by identifying the axial locations of peak acceleration of the actuator fork while moving between the first engaged position and the second engaged position. The identified axial locations are averaged to define the neutral position of the actuator fork.

Abstract translation: 一种控制双离合器变速器的方法包括使同步器重复地移动到与具有致动器叉的第一齿轮的互锁接合中，并且在每次出现时反复感测致动器叉的位置，致动器叉将同步器移动到与 第一档 致动器叉的感测位置被平均以限定用于接合第一档的致动器叉的第一接合位置。 致动器叉将同步器联接到第二档的第二接合位置可以以相同的方式确定。 可以通过在第一接合位置和第二接合位置之间移动的同时识别致动器叉的峰值加速度的轴向位置来确定中立位置。 所识别的轴向位置被平均以限定致动器叉的中间位置。

公开(公告)号：US10316963B2

公开(公告)日：2019-06-11

申请号：US15496626

申请日：2017-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng T Tao ,  Jeryl McIver ,  Leo P Dion ,  Greg Perantoni

IPC: G01M13/02 ,  F16H61/12 ,  F15B1/02 ,  F15B1/033 ,  F16H61/00 ,  F16H61/30

Abstract: A pressure sensor rationality diagnostic for a dual clutch transmission includes a series of sensor tests. One such test includes charging an oil accumulator to a maximum pressure and storing the maximum pressure value. After performing a discharge pressure event and measuring the pressure value, the difference between the max pressure value and the discharge pressure value is calculated to determine if the difference is less than a predetermined threshold. If the difference is less than the predetermined threshold then at least one remedial action is performed which may include a driver alert or default charging mode. Additionally, similar sensor tests are performed to determine if faults exists and, if true, at least one remedial action is performed.

公开(公告)号：US20180094723A1

公开(公告)日：2018-04-05

申请号：US15286080

申请日：2016-10-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald F. Lochocki, JR. ,  Moussa Ndiaye ,  Bret Olson ,  Paul G. Otanez ,  Mark S. Reinhart ,  Jeryl McIver

IPC: F16H61/688 ,  F16H61/66

CPC classification number: F16H61/688 ,  F16H59/68 ,  F16H61/12 ,  F16H61/66 ,  F16H2061/1224 ,  F16H2061/1284

Abstract: A controller for a vehicle propulsion system that includes a prime mover, a transmission connected to the prime mover to receive input torque on an input shaft and to convert the input torque to an output torque on an output shaft, a transmission input shaft speed sensor, and a transmission output shaft speed sensor. The controller provides a gear ratio value that is based upon a signal indicating an operating condition of the transmission other than a signal from the transmission input shaft speed sensor and the transmission output shaft sensor.