公开(公告)号：US10408343B2

公开(公告)日：2019-09-10

申请号：US15639510

申请日：2017-06-30

Applicant: GM Global Technology Operations LLC

Inventor： Joseph W. Tatangelo ,  Paul G. Otanez

IPC: F16H61/662 ,  F16H9/18 ,  F16H61/66

Abstract: A continuously variable transmission pump limited stop controls system includes a continuously variable transmission (CVT) including primary and secondary variator pulleys. The primary and the secondary variator pulley each have a mating half with a conical face, defining a variable-width gap between each pulley and its mating half. A flexible member is positioned within the gap and is movable on the conical faces defining a CVT ratio. A secondary pulley valve controls flow of a fluid to the secondary variator pulley. A secondary pulley pressure boost system identifies if a rapid stop event is occurring and issues a command to fully open the secondary pulley valve during the rapid stop event. As the CVT ratio reaches a predetermined threshold of a desired relaunch ratio during the rapid stop event, an engine speed request is issued to an engine connected to the CVT to increase engine speed.

公开(公告)号：US10316968B2

公开(公告)日：2019-06-11

申请号：US15596219

申请日：2017-05-16

Applicant: GM Global Technology Operations LLC

Inventor： Ronald F. Lochocki ,  Christopher J. Weingartz ,  Greg J. Perantoni ,  Stuart W. Parker ,  Paul G. Otanez ,  Bret M. Olson ,  Mary M. Whitley ,  Nathan A. Schmidt

IPC: F16H61/662 ,  F16H61/00 ,  F16H61/18 ,  F16H9/18 ,  B60W10/107

Abstract: An apparatus for ratio control of a continuously variable transmission includes a driver commanded ratio unit outputting a signal defining a commanded ratio. A clamp control portion is in communication with the driver commanded ratio unit. The clamp control portion includes: a ratio limits and override ring selecting a ratio matching the commanded ratio from an executable functions having stored ratio code data; a screening monitor continuously receiving output from the executable functions and using an input from a vehicle speed signal to compute minimum and maximum ratio limits for the ratio selected by the ratio limits and override ring; and a ratio control execution ring in communication with the screening monitor. The ratio control execution ring calculates a range of pressures allowed for operation of both primary and secondary pulleys of the continuously variable transmission.

公开(公告)号：US10151390B2

公开(公告)日：2018-12-11

申请号：US14935580

申请日：2015-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Joseph William Tatangelo ,  Paul G. Otanez ,  Zhen J. Zhang

IPC: F16H61/66 ,  F16H61/662 ,  F16H61/00

Abstract: A method and apparatus for controlling a continuously variable transmission (CVT) of a powertrain system includes determining a target clamping pressure and an actual clamping pressure, and determining a proportional correction term and an integral correction term based upon the target clamping pressure and the actual clamping pressure. An adapt correction term is determined based upon the target clamping pressure and a temperature of the CVT. A commanded clamping pressure for controlling the CVT is determined based upon the proportional correction term, the integral correction term and the adapt correction term. A pressure command is employed to drive an actuator of a moveable sheave of a pulley of a variator of the CVT based upon the commanded clamping pressure.

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.

公开(公告)号：US09890857B2

公开(公告)日：2018-02-13

申请号：US14977986

申请日：2015-12-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bret M. Olson ,  Ronald W. VanDiepen ,  Paul G. Otanez

IPC: F16H9/18 ,  F16H61/662

CPC classification number: F16H61/66272 ,  F16H9/18 ,  F16H61/66231 ,  F16H63/50 ,  F16H2061/66277 ,  F16H2063/508

Abstract: A continuously variable transmission (CVT) includes an input member, an output member, a variator assembly having a primary variator pulley operable for receiving an input torque via the input member, a secondary variator pulley operable for transmitting an output torque via the output member, and an endless rotatable drive element in frictional engagement with the primary and secondary variator pulleys, first and second speed sensors operable for measuring a respective rotational speed of the primary and secondary variator pulleys, and a controller. The controller executes a method to detect gross slip of the endless rotatable drive element with respect to the primary and secondary variator pulleys using the measured rotational speeds, and in response to the detected gross slip, to request a reduction in the input torque by a calculated amount over a calibrated duration until a level of the detected gross slip reaches a calibrated slip level.

公开(公告)号：US20170130835A1

公开(公告)日：2017-05-11

申请号：US14935575

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 ,  B60W10/107 ,  F16H9/18 ,  F16H61/66259 ,  F16H2061/66204 ,  Y10T477/6237 ,  Y10T477/624 ,  Y10T477/6242

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 a first speed ratio change rate based upon a desired speed ratio and a commanded speed ratio, and determining a commanded speed ratio trajectory based upon the first speed ratio change rate, an actual speed ratio and a commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory. A shift force is determined based upon the ratio change coefficient and a total speed ratio change rate. A primary pulley pressure and a secondary pulley pressure for the CVT are controlled based upon the shift force and the force ratio factor.

公开(公告)号：US08961356B2

公开(公告)日：2015-02-24

申请号：US13921906

申请日：2013-06-19

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: F16H3/66 ,  F16H2200/0069 ,  F16H2200/2012 ,  F16H2200/2046

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of four to establish a plurality of forward gear ratios and one reverse gear ratio. The transmission also includes a transmission auto start/stop enabler which includes a latch mechanism. The latch mechanism readies at least one of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.

Abstract translation: 提供一种变速器，其具有输入构件，输出构件，四个行星齿轮组，多个联接构件和多个扭矩传递装置。 每个行星齿轮组包括第一，第二和第三构件。 扭矩传递装置包括离合器和制动器，可组合起动四个，以建立多个前进档比和一个倒档传动比。 变速器还包括一个包括闩锁机构的变速器自动启/停启动器。 在发动机自动停止/启动事件期间，或者准备停止机动车辆时，闩锁机构准备好多个扭矩传递装置中的至少一个。

公开(公告)号：US08807305B2

公开(公告)日：2014-08-19

申请号：US13862892

申请日：2013-04-15

Applicant: GM Global Technology Operations LLC

Inventor： Paul G. Otanez ,  Shushan Bai ,  Vijay A. Neelakantan

IPC: F16F7/10 ,  F16F15/14

CPC classification number: F16F15/1407 ,  F16F15/1414 ,  F16F15/1421 ,  F16F15/145 ,  Y10T74/2128 ,  Y10T464/50

Abstract: A system for absorbing vibration in a rotary member having a predetermined rotary speed of the present invention has a selectively moveable mass and a positioning mechanism. The mass is in communication with the rotary member having a predetermined position. The positioning mechanism exerts a force on the mass at least when the rotary member operates below the predetermined rotary speed. The force exerted by the positioning mechanism orients the mass at the predetermined position when the rotary member operates below the predetermined rotary speed.

Abstract translation: 本发明的具有规定的转速的旋转部件的振动吸收系统具有选择性地移动的质量和定位机构。 该质量体与具有预定位置的旋转构件连通。 至少当旋转构件在预定转速以下运转时，定位机构对质量施加力。 当旋转构件在预定旋转速度下运行时，由定位机构施加的力将质量定位在预定位置。

公开(公告)号：US08771121B2

公开(公告)日：2014-07-08

申请号：US13918117

申请日：2013-06-14

Applicant: GM Global Technology Operations LLC

Inventor： Paul G. Otanez ,  Craig S. Ross

IPC: F16H31/00

CPC classification number: F16D25/14 ,  F16D48/0206 ,  F16D2048/0209 ,  F16D2048/0233 ,  Y10T137/8593

Abstract: An assembly includes a valve body having an inlet in selective communication with an outlet and having an unlatch port, 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 inlet communicates with the outlet when the valve piston is in a first position and the inlet does not communicate with the outlet 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. An unlatching mechanism is in communication with the unlatch port of the valve body.

Abstract translation: 一种组件包括：阀体，其具有与出口选择性连通的入口，并具有解锁口，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 阀体。 当阀活塞处于第一位置时，入口与出口连通，并且当阀活塞处于第二位置时入口不与出口连通。 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。 解锁机构与阀体的解锁口连通。

公开(公告)号：US20130296093A1

公开(公告)日：2013-11-07

申请号：US13867495

申请日：2013-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Craig S. Ross ,  Paul G. Otanez

IPC: F16D48/02 ,  F16H3/62

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。