公开(公告)号：US20210078583A1

公开(公告)日：2021-03-18

申请号：US16573268

申请日：2019-09-17

Applicant: GM Global Technology Operations LLC

Inventor： John Jancowski-Walsh ,  Zhuoran Zhang ,  Dara Monajemi

IPC: B60W30/19 ,  B60W10/11 ,  B60W10/02 ,  F16H61/02 ,  F16H61/16 ,  F16H61/682

Abstract: A method and system of controlling a drive-neutral-drive (D-N-D) shift in a multi-speed transmission. The method includes receiving a drive to neutral (D-N) shift request followed by a neutral to drive (N-D) shift request; initiating a drive to neutral (D-N) shift and determining an attained gear; determining a scheduled gear; determining if the scheduled gear is equal to the attained gear; and determining whether an off-going clutch for the drive to neutral (D-N) shift is in a hold state. The method further includes (I) aborting the drive to neutral (D-N) shift when (i) the scheduled gear is not equal to the attained gear and (ii) the off-going clutch for the (D-N) shift is in the hold state, or (II) completing a shift to neutral (N) when the off-going clutch for (D-N) shift is not in the hold state followed by shifting back drive (D).

公开(公告)号：US10926769B1

公开(公告)日：2021-02-23

申请号：US16573268

申请日：2019-09-17

Applicant: GM Global Technology Operations LLC

Inventor： John Jancowski-Walsh ,  Zhuoran Zhang ,  Dara Monajemi

IPC: B60W30/19 ,  B60W10/11 ,  F16H61/02 ,  B60W10/02 ,  F16H61/682 ,  F16H61/16

Abstract: A method and system of controlling a drive-neutral-drive (D-N-D) shift in a multi-speed transmission. The method includes receiving a drive to neutral (D-N) shift request followed by a neutral to drive (N-D) shift request; initiating a drive to neutral (D-N) shift and determining an attained gear; determining a scheduled gear; determining if the scheduled gear is equal to the attained gear; and determining whether an off-going clutch for the drive to neutral (D-N) shift is in a hold state. The method further includes (I) aborting the drive to neutral (D-N) shift when (i) the scheduled gear is not equal to the attained gear and (ii) the off-going clutch for the (D-N) shift is in the hold state, or (II) completing a shift to neutral (N) when the off-going clutch for (D-N) shift is not in the hold state followed by shifting back drive (D).

公开(公告)号：US20160076643A1

公开(公告)日：2016-03-17

申请号：US14486481

申请日：2014-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian J. Pellerito ,  Dara Monajemi ,  Brian H. Fiore ,  Joel H. Gunderson

IPC: F16H61/12 ,  F16H63/50 ,  F16H61/686

CPC classification number: F16H61/12 ,  F16H59/42 ,  F16H59/46 ,  F16H61/686 ,  F16H2059/465 ,  F16H2061/1208

Abstract: A method for monitoring a fixed-gear transmission includes deriving a node speed relationship for each of the planetary gear sets based upon a center distance and a gear ratio and determining equivalent speed parameters for nodes of the planetary gear sets based upon a transmission input speed state, an intermediate node speed state and a transmission output speed state. A clutch slip speed relationship is determined for each of the clutches based upon the node speed relationships for the planetary gear sets and the equivalent speed parameters for nodes of the planetary gear sets. Rotational speed sensors monitor the input transmission speed, the intermediate node speed and the transmission output speed. A clutch slip speed for each of the clutches is determined based upon the respective clutch slip speed relationship and the monitored input transmission speed, the monitored intermediate node speed and the monitored transmission output speed.

Abstract translation: 用于监测固定齿轮变速器的方法包括基于中心距离和齿轮比导出每个行星齿轮组的节点速度关系，并且基于传动输入速度状态确定行星齿轮组的节点的等效速度参数 ，中间节点速度状态和发送输出速度状态。 基于行星齿轮组的节点速度关系和行星齿轮组的节点的等效速度参数，为每个离合器确定离合器滑差速度关系。 转速传感器监控输入传输速度，中间节点速度和传输输出速度。 基于相应的离合器滑差速度关系和所监视的输入传输速度，所监视的中间节点速度和所监视的传输输出速度来确定每个离合器的离合器滑移速度。

公开(公告)号：US20150292616A1

公开(公告)日：2015-10-15

申请号：US14249379

申请日：2014-04-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Matthew Pruski

IPC: F16H61/06 ,  F16H61/04

CPC classification number: F16H61/061 ,  B60W10/06 ,  B60W10/08 ,  B60W10/11 ,  F16H61/04 ,  F16H2061/0078 ,  F16H2061/0496 ,  Y02T10/76

Abstract: A vehicle includes a prime mover, input clutch, transmission, and controller. The transmission, which is selectively connected to the output shaft via the input clutch, has multiple friction clutches, including respective offgoing and oncoming clutches for a negative torque upshift. The controller includes a torque request module, offgoing clutch module, and oncoming clutch module. The torque request module limits input torque into the transmission during the negative torque upshift. The offgoing control module determines actual offgoing clutch torque capacity of the offgoing clutch, calculates an actual offgoing clutch pressure using the actual offgoing clutch torque capacity, and controls the offgoing clutch through the shift using the actual offgoing clutch pressure. The oncoming control module controls the oncoming clutch through multiple stages of control of the oncoming clutch, including a fill, staging, ramp, and quick-lock stage. Closed-loop pressure correction is provided via PID logic through the inertia and torque shift phases.

Abstract translation: 车辆包括原动机，输入离合器，变速器和控制器。 通过输入离合器选择性地连接到输出轴的变速器具有多个摩擦离合器，包括用于负转矩升档的各自的离去和离去的离合器。 控制器包括扭矩请求模块，离合离合器模块和迎面而来的离合器模块。 转矩提升模块在负转矩升档期间将输入转矩限制在变速箱内。 离合控制模块确定离合离合器的实际离合器扭矩能力，使用实际离合器扭矩能力计算实际离合器离合器压力，并且使用实际离合离合器压力通过换档来控制离合器离合器。 即将到来的控制模块通过对即将到来的离合器的多个控制阶段控制迎面即来的离合器，包括填充，分段，斜坡和快速锁定阶段。 通过PID逻辑通过惯性和转矩转换阶段提供闭环压力校正。

公开(公告)号：US10053099B2

公开(公告)日：2018-08-21

申请号：US15169268

申请日：2016-05-31

Applicant: GM Global Technology Operations LLC

Inventor： Dara Monajemi ,  Matthew D. Whitton ,  Brian M. Porto

IPC: B60W30/19 ,  B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W10/115 ,  F16H3/66

CPC classification number: B60W30/18072 ,  B60W10/02 ,  B60W10/026 ,  B60W10/06 ,  B60W10/115 ,  B60W30/19 ,  B60W2510/0216 ,  B60W2510/0638 ,  B60W2510/1005 ,  B60W2510/182 ,  B60W2710/021 ,  B60W2710/024 ,  B60W2710/0644 ,  B60W2710/0666 ,  B60W2710/1005 ,  F16H3/66 ,  F16H61/0204 ,  F16H2200/006 ,  F16H2200/2012 ,  F16H2200/2043 ,  F16H2306/00 ,  Y02T10/76

Abstract: A transmission is provided having a control module, an input member, an output member, four planetary gear sets, a plurality of interconnecting 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. The control module includes a control logic sequence for performing a coasting downshift of the transmission.

公开(公告)号：US09803704B1

公开(公告)日：2017-10-31

申请号：US15251646

申请日：2016-08-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Brian M Porto

IPC: B60W10/06 ,  F16D48/06 ,  B60W10/115

CPC classification number: F16D48/06 ,  B60W10/06 ,  B60W10/115 ,  F16D2500/104 ,  F16D2500/30401 ,  F16D2500/30814 ,  F16D2500/50661 ,  F16H61/04

Abstract: A transmission for a vehicle having a prime mover with an output shaft. The transmission includes an offgoing clutch that is selectively connected to the output shaft, and a controller in communication with the prime mover. The controller includes an offgoing clutch control module that determines an offgoing clutch torque profile at the start of a torque phase in a power downshift that does not exceed a predetermined offgoing clutch energy threshold and a torque request module that limits a rate of input torque into the transmission from the prime mover based upon the determined offgoing clutch torque profile.

公开(公告)号：US20170037957A1

公开(公告)日：2017-02-09

申请号：US14818917

申请日：2015-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Brian H Fiore ,  Jeremy V Horgan

IPC: F16H61/02

CPC classification number: F16H61/061 ,  F16H59/0204 ,  F16H59/24 ,  F16H2059/0239 ,  F16H2061/0093 ,  F16H2306/24

Abstract: A system includes a torque converter having a turbine, a transmission having friction clutches and an input member connected to the turbine, and a controller. The controller is programmed to control a change-of-mind shift maneuver of the transmission. By executing a method, the controller detects the change-of-mind shift maneuver, predicts an acceleration profile of the turbine for a next-requested shift of the detected shift maneuver as a function of a calibrated desired shift time and an output speed of the transmission, calculates a shift control value for a next-requested shift of the shift maneuver using the predicted acceleration profile, and executes the next-requested shift via the clutches using the calculated shift control value. The shift maneuver may be a skip-at-sync quick shift-to-quick shift or power downshift-to-power downshift. The shift value may be a clutch pressure for an offgoing holding clutch or a torque management level from an engine.

Abstract translation: 一种系统包括具有涡轮机的变矩器，具有摩擦离合器的变速器和连接到涡轮机的输入构件以及控制器。 控制器被编程为控制变速器的心灵换档操纵。 通过执行一种方法，控制器检测心理变化动作的动作，根据校准的期望换档时间的函数来预测涡轮机的下一次所请求的换档操作的移动速度的加速度曲线，并且输出速度 使用预测的加速度曲线计算用于下一次请求的换档操作的换档的换档控制值，并且使用所计算的换档控制值，经由离合器执行下一个请求的换档。 换档操作可能是同步快速换档到快速换档或降档至功率降档。 换档值可以是用于离开的保持离合器的离合器压力或来自发动机的扭矩管理水平。

公开(公告)号：US09869387B2

公开(公告)日：2018-01-16

申请号：US14818917

申请日：2015-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Brian H Fiore ,  Jeremy V Horgan

IPC: F16H61/06 ,  F16H59/02 ,  F16H61/00 ,  F16H59/24

CPC classification number: F16H61/061 ,  F16H59/0204 ,  F16H59/24 ,  F16H2059/0239 ,  F16H2061/0093 ,  F16H2306/24

Abstract: A system includes a torque converter having a turbine, a transmission having friction clutches and an input member connected to the turbine, and a controller. The controller is programmed to control a change-of-mind shift maneuver of the transmission. By executing a method, the controller detects the change-of-mind shift maneuver, predicts an acceleration profile of the turbine for a next-requested shift of the detected shift maneuver as a function of a calibrated desired shift time and an output speed of the transmission, calculates a shift control value for a next-requested shift of the shift maneuver using the predicted acceleration profile, and executes the next-requested shift via the clutches using the calculated shift control value. The shift maneuver may be a skip-at-sync quick shift-to-quick shift or power downshift-to-power downshift. The shift value may be a clutch pressure for an offgoing holding clutch or a torque management level from an engine.

公开(公告)号：US09249881B1

公开(公告)日：2016-02-02

申请号：US14628859

申请日：2015-02-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Jeremy V. Horgan ,  Matthew Pruski ,  Brian H. Fiore

IPC: F16H61/04 ,  F16H61/686 ,  F16H59/70 ,  F16H61/06

CPC classification number: F16H61/686 ,  F16H3/66 ,  F16H59/70 ,  F16H61/04 ,  F16H61/061 ,  F16H2061/0444 ,  F16H2061/0455 ,  F16H2061/0462 ,  F16H2200/0065 ,  F16H2200/0069 ,  F16H2200/201 ,  F16H2200/2046 ,  F16H2200/2048 ,  F16H2200/2066 ,  F16H2200/2082 ,  F16H2306/20 ,  F16H2306/24

Abstract: A method of controlling clutches in a multi-speed transmission includes beginning a current shift from a starting gear to an initial target gear, and determining whether the current shift is a downshift. The method determines jump-stage eligibility of a first clutch. Determining jump-stage eligibility includes determining whether the first clutch is a holding clutch for the current shift, and determining whether the first clutch is an off-going clutch for a legal shift from the initial starting gear to an adjusted target gear having a higher speed ratio than the initial starting gear. If the first clutch is not jump-stage eligible, the method maintains pressure of the first clutch at a current pressure. If the first clutch is jump-stage eligible, the method reduces the pressure of the first clutch from the current pressure to a staging pressure, which is greater than a slipping pressure.

Abstract translation: 在多速变速器中控制离合器的方法包括开始从起动档位到初始目标档位的当前换档，以及确定当前档位是否为降挡档。 该方法确定第一离合器的跳跃级合格性。 确定跳跃级合格性包括确定第一离合器是否是用于当前换档的保持离合器，以及确定第一离合器是否是用于从初始起始档转换到具有较高速度的调节目标档的法定换档的离合器 比起初始起始档。 如果第一离合器不是跳级合格的，则该方法保持第一离合器在当前压力下的压力。 如果第一离合器是跳级合格的，则该方法将第一离合器的压力从当前压力降低到大于滑动压力的分级压力。

公开(公告)号：US08886423B1

公开(公告)日：2014-11-11

申请号：US14032468

申请日：2013-09-20

Applicant: GM Global Technology Operations LLC

Inventor： Randall B. Dlugoss ,  Matthew Pruski ,  Dara Monajemi

IPC: G06F7/00 ,  F16H3/44 ,  B60W10/11 ,  B60W10/02

CPC classification number: B60W10/11 ,  B60W10/06 ,  B60W10/115 ,  B60W30/18072 ,  B60W2710/0644 ,  B60Y2400/421 ,  B60Y2400/427 ,  F16H3/66 ,  F16H2061/044 ,  F16H2200/201 ,  F16H2200/2041 ,  F16H2200/2094 ,  Y02T10/76

Abstract: A vehicle includes an engine, an engine control module (ECM), and a transmission assembly. The transmission assembly includes a transmission control module (TCM), a stationary member, gear sets, an input member connected to the engine and one of the gear sets, and a binary clutch assembly. The binary clutch assembly has a freewheeling element and a binary device preventing rotation of the binary clutch assembly when applied, and allows the binary clutch assembly to freewheel when released. The TCM controls a slip speed differential of the binary clutch assembly when the vehicle is coasting in a forward gear state. The TCM determines a threshold maximum slip speed differential, calculates a required engine speed for achieving no more than the threshold maximum, and transmits the required engine speed to the ECM to maintain engine speed at or above the required engine speed. Doing so enables transmission state and direction change flexibility.

Abstract translation: 车辆包括发动机，发动机控制模块（ECM）和变速器组件。 变速器组件包括变速器控制模块（TCM），固定构件，齿轮组，连接到发动机和齿轮组中的一个的输入构件以及二元离合器组件。 二进制离合器组件具有续流元件和防止二次离合器组件在施加时的旋转的二进制装置，并且允许二进制离合器组件在释放时飞行。 当车辆在前进档状态下滑行时，TCM控制二进制离合器组件的滑差速度差。 TCM确定阈值最大滑差速度差，计算达到不超过阈值最大值的所需发动机转速，并将要求的发动机转速发送到ECM，以将发动机转速保持在所需发动机转速以上。 这样做可以使传输状态和方向变化灵活。