公开(公告)号：US09371065B2

公开(公告)日：2016-06-21

申请号：US14220207

申请日：2014-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  Brian H Fiore ,  David Szpara

IPC: B60W10/11 ,  B60W10/113 ,  B60W10/06 ,  F16H61/04 ,  B60W10/10 ,  F16H61/684 ,  F16H63/50

CPC classification number: B60W10/10 ,  B60W10/06 ,  B60W2510/1025 ,  B60W2710/105 ,  F16H61/0437 ,  F16H61/684 ,  F16H63/502 ,  F16H2061/0444 ,  F16H2306/24

Abstract: A method of controlling a transmission includes determining if the transmission is currently executing a first torque controlled shift from a first gear ratio to a second gear ratio. A torque controlled shift is defined as a shift control operation in which the speed of the engine is controlled to perform a shift operation. When a second torque controlled shift is detected while the transmission is currently executing the first torque controlled shift, a dual torque controlled shift strategy is executed, which merges a first shift control strategy for executing the first torque controlled shift with a second shift control strategy for executing the second torque controlled shift. The dual torque controlled shift strategy seamlessly executes the first torque controlled shift and the second torque controlled shift without a time delay and engine torque disruption therebetween.

Abstract translation: 控制变速器的方法包括确定变速器当前是否正在执行从第一变速比到第二变速比的第一转矩控制变速。 转矩控制换档被定义为其中控制发动机的速度以执行换档操作的换档控制操作。 当在变速器当前正在执行第一转矩控制换档时检测到第二转矩控制换档时，执行双转矩控制换档策略，其将用于执行第一转矩控制换档的第一变速控制策略与用于 执行第二转矩控制位移。 双转矩控制换档策略无缝地执行第一转矩控制换档和第二转矩控制换档，而不会发生时间延迟和发动机扭矩中断。

公开(公告)号：US20200256459A1

公开(公告)日：2020-08-13

申请号：US16272568

申请日：2019-02-11

Applicant: GM Global Technology Operations LLC

Inventor： Jose C. Zavala Jurado ,  Gionata Cimini ,  Bryan P. Jagielo ,  Zhen Zhang ,  Yue-Yun Wang ,  Harinath Atmaram

IPC: F16H61/14

Abstract: A control system to control slip of a torque converter clutch includes a clutch plant model configured to predict a value of a parameter that relates to torque converter clutch slip as a function of clutch plant model inputs comprising commanded clutch pressure and of torque from the torque generative device. The control system also includes a model predictive controller configured to receive signals that allow determination of a desired value of the parameter that relates to torque converter clutch slip and a predicted value of the parameter that relates to torque converter clutch slip, receive a signal representing reported torque of the torque generative device, identify an optimal commanded clutch pressure value that will result in an optimal value of an objective function based on the clutch plant model, and provide a command signal to an actuator effective to control commanded clutch pressure to the torque converter clutch.

公开(公告)号：US10859159B2

公开(公告)日：2020-12-08

申请号：US16272568

申请日：2019-02-11

Applicant: GM Global Technology Operations LLC

Inventor： Jose C. Zavala Jurado ,  Gionata Cimini ,  Bryan P. Jagielo ,  Zhen Zhang ,  Yue-Yun Wang ,  Harinath Atmaram

IPC: F16H61/14 ,  F16H59/14

Abstract: A control system to control slip of a torque converter clutch includes a clutch plant model configured to predict a value of a parameter that relates to torque converter clutch slip as a function of clutch plant model inputs comprising commanded clutch pressure and of torque from the torque generative device. The control system also includes a model predictive controller configured to receive signals that allow determination of a desired value of the parameter that relates to torque converter clutch slip and a predicted value of the parameter that relates to torque converter clutch slip, receive a signal representing reported torque of the torque generative device, identify an optimal commanded clutch pressure value that will result in an optimal value of an objective function based on the clutch plant model, and provide a command signal to an actuator effective to control commanded clutch pressure to the torque converter clutch.

公开(公告)号：US09416869B2

公开(公告)日：2016-08-16

申请号：US14477199

申请日：2014-09-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  Ronald W. Van Diepen ,  Matthew D. Whitton ,  Mateusz Nowak

IPC: F16H61/688 ,  F16H61/04 ,  F16H59/46 ,  F16H61/06 ,  B60W10/113 ,  B60W10/06

CPC classification number: F16H61/0437 ,  B60W10/06 ,  B60W10/113 ,  B60W2540/10 ,  B60W2540/20 ,  B60W2710/1005 ,  F16H59/46 ,  F16H61/06 ,  F16H61/688 ,  F16H2059/462 ,  F16H2061/0216 ,  F16H2061/0459 ,  F16H2306/14 ,  F16H2306/24 ,  F16H2306/30 ,  F16H2306/54

Abstract: A vehicle includes an engine, dual-clutch transmission (DCT), and controller. The controller executes a method to control a requested change-of-mind shift of the DCT to a second desired gear state. The requested shift is initiated after a prior-requested but not yet fully-executed shift of the DCT to a first desired gear state. The controller detects the requested shift, identifies the second desired gear state, and aborts the prior-requested shift immediately upon identifying the second desired gear state. The controller also shifts the DCT to the second desired gear state using a calibrated shift profile corresponding to the detected shift. The calibrated shift profile describes required oncoming and offgoing clutch torques needed for achieving the second desired gear state. Engine speed control may be used to synchronize engine and input shaft speeds.

Abstract translation: 车辆包括发动机，双离合器变速器（DCT）和控制器。 控制器执行一种方法来控制所要求的DCT变换到第二期望档位的心理偏移。 所请求的移位在DCT的先前请求但尚未完全执行的移位到第一期望的档位状态之后启动。 控制器检测到请求的换档，识别第二个所需的档位状态，并且在识别出第二个期望的档位状态后立即中止先前请求的换档。 控制器还使用对应于检测到的移位的校准的移位轮廓将DCT移动到第二所需档位状态。 校准的换档曲线描述了实现第二所需齿轮状态所需要的迎面而来和离开的离合器转矩。 发动机转速控制可用于同步发动机和输入轴转速。

公开(公告)号：US20160069453A1

公开(公告)日：2016-03-10

申请号：US14477199

申请日：2014-09-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  Ronald W. Van Diepen ,  Matthew D. Whitton ,  Mateusz Nowak

IPC: F16H61/04 ,  F16H61/688 ,  F16H59/46 ,  F16H61/06

CPC classification number: F16H61/0437 ,  B60W10/06 ,  B60W10/113 ,  B60W2540/10 ,  B60W2540/20 ,  B60W2710/1005 ,  F16H59/46 ,  F16H61/06 ,  F16H61/688 ,  F16H2059/462 ,  F16H2061/0216 ,  F16H2061/0459 ,  F16H2306/14 ,  F16H2306/24 ,  F16H2306/30 ,  F16H2306/54

Abstract: A vehicle includes an engine, a dual-clutch transmission (DCT), and a controller. The controller executes instructions embodying a method to control a requested change-of-mind shift of the DCT to a second desired gear state. The requested change-of-mind shift is initiated after a prior-requested but not yet fully-executed shift of the DCT to a first desired gear state. Execution of the instructions causes the controller to detect the requested change-of-mind shift, identify the second desired gear state, and abort the prior-requested shift to the first desired gear state immediately upon identifying the second desired gear state. The controller also shifts the DCT to the second desired gear state using a calibrated shift profile corresponding to the detected change-of-mind shift. The calibrated shift profile describes required oncoming and offgoing clutch torques needed for achieving the second desired gear state. Engine speed control may be used to synchronize engine and input shaft speeds.

Abstract translation: 车辆包括发动机，双离合器变速器（DCT）和控制器。 控制器执行指示体现用于控制DCT到第二所需档位状态的所请求的心理变化的方法的指令。 所请求的心理变化在先前请求但尚未完全执行DCT移动到第一期望档位之后开始。 指令的执行使得控制器检测到所请求的心理变化的变化，识别第二个期望的档位状态，并且在识别出第二个期望的档位状态时，立即中止先前请求的换档到第一个期望的档位状态。 控制器还使用对应于检测到的心理变化换档的校准的移位轮廓将DCT移动到第二所需档位状态。 校准的换档曲线描述了实现第二所需齿轮状态所需要的迎面而来和离开的离合器转矩。 发动机转速控制可用于同步发动机和输入轴转速。

公开(公告)号：US09316309B2

公开(公告)日：2016-04-19

申请号：US14570426

申请日：2014-12-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  William R. Mayhew

IPC: F16H61/06 ,  F16H59/14 ,  F16H61/04 ,  F16H61/02 ,  F16H61/68

CPC classification number: F16H61/0437 ,  F16H59/14 ,  F16H61/02 ,  F16H61/06 ,  F16H61/68 ,  F16H2306/24 ,  Y10T477/638 ,  Y10T477/688 ,  Y10T477/692

Abstract: A method of controlling shifts in a multi-speed transmission includes beginning an initial shift, which changes the transmission from a starting gear to an initial target gear, and executing an adjusted shift, which changes the transmission to an adjusted target gear having higher speed ratio than the initial target gear, when transition conditions are satisfied. The transition conditions include a threshold increase in torque request, which is sufficient to require the transmission to be placed into the adjusted target gear. The transition conditions also include a common controlling clutch, which is partially engaged during the initial shift and the adjusted shift and is an off-going clutch to place the transmission in the adjusted target gear. Executing the adjusted shift does not include placing the transmission in a neutral mode. Furthermore, executing the adjusted shift does not include completing the initial shift.

Abstract translation: 一种控制多速变速器换档的方法包括开始初始换档，其将起动档位的变速器改变为初始目标档位，并且执行调整换档，其将变速器改变为具有较高变速比的调整后的目标档位 当初始目标齿轮满足转换条件时。 转换条件包括扭矩请求的阈值增加，这足以使变速器被放置到调整后的目标档位中。 过渡条件还包括共同控制离合器，其在初始换档期间部分地接合并且被调整的换档，并且是离合器以将变速器放置在调整后的目标齿轮中。 执行调整后的换档不包括将变速箱置于空档模式。 此外，执行调整后的移位不包括完成初始班次。

公开(公告)号：US20150266463A1

公开(公告)日：2015-09-24

申请号：US14220207

申请日：2014-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  Brian H. Fiore ,  David Szpara

IPC: B60W10/10 ,  B60W10/06

CPC classification number: B60W10/10 ,  B60W10/06 ,  B60W2510/1025 ,  B60W2710/105 ,  F16H61/0437 ,  F16H61/684 ,  F16H63/502 ,  F16H2061/0444 ,  F16H2306/24

Abstract: A method of controlling a transmission includes determining if the transmission is currently executing a first torque controlled shift from a first gear ratio to a second gear ratio. A torque controlled shift is defined as a shift control operation in which the speed of the engine is controlled to perform a shift operation. When a second torque controlled shift is detected while the transmission is currently executing the first torque controlled shift, a dual torque controlled shift strategy is executed, which merges a first shift control strategy for executing the first torque controlled shift with a second shift control strategy for executing the second torque controlled shift. The dual torque controlled shift strategy seamlessly executes the first torque controlled shift and the second torque controlled shift without a time delay and engine torque disruption therebetween.

Abstract translation: 控制变速器的方法包括确定变速器当前是否正在执行从第一变速比到第二变速比的第一转矩控制变速。 转矩控制换档被定义为其中控制发动机的速度以执行换档操作的换档控制操作。 当在变速器当前正在执行第一转矩控制换档时检测到第二转矩控制换档时，执行双转矩控制换档策略，其将用于执行第一转矩控制换档的第一变速控制策略与用于 执行第二转矩控制位移。 双转矩控制换档策略无缝地执行第一转矩控制换档和第二转矩控制换档，而不会发生时间延迟和发动机扭矩中断。

公开(公告)号：US20150096858A1

公开(公告)日：2015-04-09

申请号：US14570426

申请日：2014-12-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Harinath Atmaram ,  William R. Mayhew

IPC: F16H61/04 ,  F16H61/68

CPC classification number: F16H61/0437 ,  F16H59/14 ,  F16H61/02 ,  F16H61/06 ,  F16H61/68 ,  F16H2306/24 ,  Y10T477/638 ,  Y10T477/688 ,  Y10T477/692

Abstract: A method of controlling shifts in a multi-speed transmission includes beginning an initial shift, which changes the transmission from a starting gear to an initial target gear, and executing an adjusted shift, which changes the transmission to an adjusted target gear having higher speed ratio than the initial target gear, when transition conditions are satisfied. The transition conditions include a threshold increase in torque request, which is sufficient to require the transmission to be placed into the adjusted target gear. The transition conditions also include a common controlling clutch, which is partially engaged during the initial shift and the adjusted shift and is an off-going clutch to place the transmission in the adjusted target gear. Executing the adjusted shift does not include placing the transmission in a neutral mode. Furthermore, executing the adjusted shift does not include completing the initial shift.

Abstract translation: 一种控制多速变速器换档的方法包括开始初始换档，其将起动档位的变速器改变为初始目标档位，并且执行调整换档，其将变速器改变为具有较高变速比的调整后的目标档位 当初始目标齿轮满足转换条件时。 转换条件包括扭矩请求的阈值增加，这足以使变速器被放置到调整后的目标档位中。 过渡条件还包括共同控制离合器，其在初始换档期间部分地接合并且被调整的换档，并且是离合器以将变速器放置在调整后的目标齿轮中。 执行调整后的换档不包括将变速箱置于空档模式。 此外，执行调整后的移位不包括完成初始班次。