公开(公告)号：US20140195129A1

公开(公告)日：2014-07-10

申请号：US13916752

申请日：2013-06-13

Applicant: GM Global Technology Operations LLC

Inventor： Colin Hultengren ,  Craig J. Hawkins ,  Matthew D. Whitton ,  Crystal Nassouri ,  Jonathan P. Kish

IPC: B60W30/18

CPC classification number: F16D13/00 ,  F16D48/06 ,  F16D48/10 ,  F16D2500/3065 ,  F16D2500/3066 ,  F16D2500/3165 ,  F16D2500/50224 ,  F16D2500/70252 ,  F16D2500/70264 ,  F16D2500/7041 ,  F16D2500/7044 ,  F16H61/04 ,  F16H61/061 ,  Y10T477/635 ,  Y10T477/6403 ,  Y10T477/70

Abstract: A vehicle includes an engine, an engine control module (ECM), and a dual clutch transmission (DCT) assembly. The DCT assembly has first and second input clutches, first and second gear sets selectively connected to the engine via the respective first and second input clutches, and a transmission control module (TCM). In executing a launch control method, the TCM receives a launch request, receives an actual engine torque, and determines the inertia and acceleration of the engine. The TCM then calculates a clutch torque for the particular input clutch used for vehicle launch as a function of the actual engine torque and the product of the inertia and the acceleration, compares the calculated clutch torque to the commanded clutch torque, modifies a torque-to-position (TTP) table depending on the comparison result, and transmits a clutch position signal to the designated input clutch to command an apply position extracted from the TTP table.

Abstract translation: 一种车辆包括发动机，发动机控制模块（ECM）和双离合器变速器（DCT）组件。 DCT组件具有第一和第二输入离合器，第一和第二齿轮组通过相应的第一和第二输入离合器选择性地连接到发动机，以及变速器控制模块（TCM）。 在执行发射控制方法时，TCM接收发射请求，接收实际的发动机扭矩，并确定发动机的惯性和加速度。 然后，TCM根据实际的发动机扭矩和惯性与加速度的乘积，计算用于车辆发射的特定输入离合器的离合器扭矩，将计算的离合器扭矩与指令的离合器扭矩进行比较，将转矩 - - 位置（TTP）表，并将离合器位置信号发送到指定的输入离合器，以指示从TTP表提取的应用位置。

公开(公告)号：US10229232B2

公开(公告)日：2019-03-12

申请号：US15220912

申请日：2016-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Richard I. Chang ,  Matthew D. Whitton

IPC: B60K37/00 ,  F16H63/42 ,  F16H61/22 ,  G06F17/50 ,  F16H63/40 ,  F02D41/02 ,  G06Q10/04 ,  F02D41/14

Abstract: Methods and systems are provided for generating a predictive tachometer profile at a tachometer of a vehicle. When an inertia phase of a transmission shift event is determined to be in progress, the predictive tachometer profile can be computed based on: a computed shift completion percentage; a difference between the current attained gear speed and the commanded gear speed; and a commanded engine torque that is determined based on the accelerator pedal position and the vehicle speed. The predictive tachometer profile can then be displayed at the tachometer. The predictive tachometer profile accounts for delays in a signal path between an engine speed sensor and the tachometer.

公开(公告)号：US20170341651A1

公开(公告)日：2017-11-30

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

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：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：US20160033034A1

公开(公告)日：2016-02-04

申请号：US14448272

申请日：2014-07-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Jay Weingartz ,  Matthew D. Whitton ,  Xuefeng Tim Tao ,  Craig J. Hawkins

IPC: F16H61/688 ,  F16H59/38 ,  F16H59/44 ,  F16H61/04 ,  F16H59/68

CPC classification number: F16H61/688 ,  F16H59/38 ,  F16H59/44 ,  F16H59/46 ,  F16H59/68 ,  F16H61/0403 ,  F16H2059/6823 ,  F16H2061/0087 ,  F16H2061/0474

Abstract: A method of controlling a transmission includes selecting a target speed of a second shaft, and measuring a second speed of the second shaft and an output speed of an output shaft. The method includes detecting a rolling neutral condition wherein a first and second clutch are uncoupled from a torque generator and a synchronizer is mated to a predicted gear to apply a load in a direction, and one of a first condition wherein the output speed is decreasing and the target speed is less than the second speed and a second condition wherein the output speed is increasing and the target speed is less than the second speed. The method then includes translating the synchronizer away from the predicted gear, coupling and decoupling the second clutch to and from the torque generator, and mating the synchronizer to the predicted gear to again apply the load in the direction.

Abstract translation: 控制变速器的方法包括选择第二轴的目标速度，以及测量第二轴的第二速度和输出轴的输出速度。 该方法包括检测滚动中立状态，其中第一离合器和第二离合器与扭矩发生器分离，并且同步器与预测齿轮配合，以向方向施加负载，并且其中输出速度降低的第一状态和 目标速度小于第二速度，其中输出速度增加并且目标速度小于第二速度的第二条件。 然后，该方法包括将同步器从预测齿轮中移出，将第二离合器与扭矩发生器耦合和解耦，并将同步器与预测齿轮配合，以再次向该方向施加负载。

公开(公告)号：US20130310219A1

公开(公告)日：2013-11-21

申请号：US13742722

申请日：2013-01-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher E. Whitney ,  Christopher Harold Knieper ,  Ronald W. Van Diepen ,  Ning Jin ,  Matthew D. Whitton

IPC: B60W10/11 ,  B60W10/06

CPC classification number: B60W10/11 ,  B60W10/02 ,  B60W10/06 ,  B60W10/113 ,  B60W30/19 ,  B60W2710/0644 ,  B60W2710/0666 ,  F16H61/0403 ,  F16H61/688 ,  F16H63/46 ,  F16H63/502 ,  F16H2059/0252 ,  F16H2306/14 ,  F16H2306/44 ,  F16H2306/52 ,  F16H2306/54 ,  Y10T477/6403 ,  Y10T477/677

Abstract: A method of commanding a synchronous gear shift begins by receiving a request to shift from a third gear to a first gear, and skipping a second gear having a gear ratio between the gear ratio of the first gear and the gear ratio of the third gear. Subsequently the method includes: reducing a torque command to a predetermined value; opening a clutch disposed on the input shaft of the transmission to decouple the transmission from the engine; transitioning the engine from a torque-control mode into a speed-control mode; commanding the engine to rotate at a speed dictated by the motion of the vehicle and the gear ratio of the first gear; closing the clutch to couple the transmission and the engine; and transitioning the engine back into the torque-control mode.

Abstract translation: 通过接收从第三档转换到第一档的请求，并且跳过具有第一档的传动比与第三档的传动比之间的传动比的第二档，起动同步档位的方法。 随后该方法包括：将转矩指令减小到预定值; 打开设置在变速器的输入轴上的离合器以将变速器与发动机分离; 将发动机从转矩控制模式转换为速度控制模式; 指令发动机以由车辆的运动和第一档的传动比决定的速度旋转; 关闭离合器以连接变速器和发动机; 并将发动机转换回转矩控制模式。