公开(公告)号：US20140379241A1

公开(公告)日：2014-12-25

申请号：US13922511

申请日：2013-06-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez

IPC: F02D29/02 ,  F02D41/30

CPC classification number: F02N11/0833 ,  F02D2700/0215 ,  F02D2700/07 ,  F02N2200/0802 ,  F16D48/066 ,  F16D2500/50296 ,  F16D2500/5085 ,  F16D2500/5104 ,  Y02T10/48

Abstract: A method of preventing an automatic engine stop includes estimating a temperature of a volume of fluid within a hydraulic accumulator that is in selective fluid communication with a fluidly-actuated torque-transmitting device. The torque-transmitting device is coupled to an internal combustion engine and configured to selectively transmit a torque from the engine to a vehicle wheel. The method further includes comparing the estimated fluid temperature to a temperature range, and preventing the internal combustion engine from automatically stopping if the estimated fluid temperature is outside of the temperature range.

Abstract translation: 一种防止自动发动机停止的方法包括估计与流体致动的扭矩传递装置选择性流体连通的液压蓄能器内的流体体积的温度。 扭矩传递装置联接到内燃机并且构造成选择性地将扭矩从发动机传递到车轮。 该方法还包括将估计的流体温度与温度范围进行比较，并且如果估计的流体温度在温度范围之外，则防止内燃机自动停止。

公开(公告)号：US20140378269A1

公开(公告)日：2014-12-25

申请号：US13921912

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. An transmission auto start/stop enabler includes one or multiple latches. The latches engage one or more 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。 传输自动启动/停止启动器包括一个或多个锁存器。 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，所述闩锁接合所述多个扭矩传递装置中的一个或多个。

公开(公告)号：US20140378267A1

公开(公告)日：2014-12-25

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：US20140329635A1

公开(公告)日：2014-11-06

申请号：US13875540

申请日：2013-05-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez

IPC: F16H3/44

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。

公开(公告)号：US20140163845A1

公开(公告)日：2014-06-12

申请号：US13712148

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Zhen J. Zhang ,  Casie M. Bockenstette ,  Todd R. Berger ,  Kristopher J. Kokko ,  Min K. Kim

IPC: F02D29/02

CPC classification number: F02D29/02 ,  F02D41/0215 ,  F02N11/084 ,  F16H61/0021 ,  F16H2061/0034 ,  F16H2312/14 ,  Y02T10/48

Abstract: A method of preventing an automatic engine stop includes: determining a pressure difference between an accumulator fill volume and a fluid conduit in selective fluid communication with the accumulator fill volume; determining a change in the accumulator fill volume from the determined pressure difference; adding the change in the accumulator fill volume to a previous estimate of the accumulator fill volume to determine a current estimate of the accumulator fill volume; comparing the current estimate of the accumulator fill volume to a predetermined threshold; and preventing an automatic engine stop if the current estimate of the accumulator fill volume is below the predetermined threshold.

Abstract translation: 一种防止自动发动机停止的方法包括：确定蓄液器填充容积与流体导管之间的压力差，以便与储液器填充容积选择性流体连通; 从所确定的压力差确定所述蓄液器填充容积的变化; 将累加器填充量的变化加到累加器填充容积的先前估计值以确定累加器填充容积的当前估计值; 将蓄电池充电量的当前估计值与预定阈值进行比较; 并且如果累积器填充量的当前估计值低于预定阈值，则防止自动发动机停止。

公开(公告)号：US20130319813A1

公开(公告)日：2013-12-05

申请号：US13890869

申请日：2013-05-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Craig S. Ross

IPC: F16D25/00 ,  F16K51/00

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。

公开(公告)号：US20130228041A1

公开(公告)日：2013-09-05

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: 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：US20220194377A1

公开(公告)日：2022-06-23

申请号：US17126784

申请日：2020-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Yiran Hu ,  Hualin Tan ,  Daniel L. Baibak ,  Ruixing Long

IPC: B60W30/182 ,  B60W10/04 ,  B60W50/08 ,  B60W40/114 ,  B60W40/109 ,  B60W40/08 ,  B60W10/20 ,  B60W10/18 ,  B60W40/105

Abstract: The concepts described herein relate to a calculation of desired future longitudinal horizons related to torque or acceleration, and desired future lateral horizons related to yaw rate and lateral velocity, and their use in response to driver-selectable modes. In the longitudinal direction, driver inputs of pedal and brake position as well as drivability metrics are used to calculate the desired future torque trajectory. In the lateral direction, the front and rear steering angles may be used with a bicycle model to derive the trajectories. The trajectories are used in a vehicle motion controller that uses weighting to tradeoff competing requests and deliver performance that is consistent with a selected driver mode, such as a tour mode, a sport mode, an off-road mode, a trailering mode, etc.

公开(公告)号：US20220176827A1

公开(公告)日：2022-06-09

申请号：US17110814

申请日：2020-12-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Adam J. Heisel ,  Nathaniel S. Michaluk ,  Yiran Hu ,  Jacob M. Knueven ,  Todd P. Lindemann

IPC: B60L15/20 ,  B60K17/00 ,  B60K1/00 ,  B60K26/02

Abstract: A method of operating a vehicle includes a vehicle controller receiving a driver acceleration/deceleration command for the vehicle's powertrain and determining a torque request corresponding to the driver's acceleration command. The controller shapes the torque request and determines compensated and uncompensated accelerations from the shaped torque request. The compensated acceleration is based on an estimated road grade and an estimated vehicle mass, whereas the uncompensated acceleration is based on a zero road grade and a nominal vehicle mass. A final speed horizon profile is calculated as: a speed-control speed profile based on the uncompensated acceleration if the vehicle's speed is below a preset low vehicle speed; or a torque-control speed profile based on a blend of the compensated and uncompensated accelerations if the vehicle speed exceeds the preset low vehicle speed. The controller commands the powertrain to output a requested axle torque based on the final speed horizon profile.

公开(公告)号：US10661804B2

公开(公告)日：2020-05-26

申请号：US15950097

申请日：2018-04-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul G. Otanez ,  Michael Livshiz ,  Christopher J. Weingartz ,  Cole Reinhold ,  Michael T. Sarzynski ,  Mateusz M. Nowak ,  Bharath Pattipati

IPC: B60W10/06 ,  B60W10/107 ,  B60W30/188 ,  B60W30/18

Abstract: A propulsion system, control system, and method use model predictive control systems to generate a plurality of sets of possible command values and determine a cost for each set of possible command values. The set of possible command values that has the lowest cost is determined and defined as a selected set of command values. In some circumstances, the MPC-determined command value may be replaced by another transmission ratio command based on override inputs. Minimum and maximum transmission ratios are determined based on the override inputs, and a constrained (or arbitrated) transmission ratio is determined therefrom. The constrained or arbitrated transmission ratio is used to determine whether to apply an MPC-determined transmission ratio or a transmission ratio based on the arbitrated transmission ratio to determine an ultimate commanded transmission ratio. Pressure(s) are commanded to a transmission pulley assembly, which is configured to implement the ultimate commanded transmission ratio.