公开(公告)号：US09242651B1

公开(公告)日：2016-01-26

申请号：US14462811

申请日：2014-08-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mateusz Nowak ,  Matthew D. Whitton

IPC: B60W10/02 ,  B60W10/06 ,  B60W10/11 ,  B60W30/19 ,  F16H61/04 ,  F02D29/02 ,  B60W10/113

CPC classification number: B60W30/19 ,  B60W10/06 ,  B60W10/113 ,  B60W30/1884 ,  B60W2510/0638 ,  B60W2710/023 ,  B60W2710/1005 ,  F02D29/02 ,  F02D41/023 ,  F16H61/0437 ,  F16H61/688 ,  F16H2061/0462

Abstract: A vehicle includes an engine, dual-clutch transmission (DCT), and controller. The controller executes a method to detect a requested power-on downshift of the DCT from an attained gear to a desired gear. Offgoing and oncoming clutches are identified for the power-on downshift from the input clutches, and the controller determines whether engine speed has reached a target synchronous speed. The controller increases oncoming clutch torque at a calibrated ramp rate when a fork for the desired gear has engaged and releases the offgoing clutch at another calibrated ramp rate. If engine flare is present, the controller adjusts the oncoming clutch ramp rate, uses engine torque management to control the flare, and allows the offgoing clutch to continue disengaging. The power-on downshift is completed when the oncoming clutch reaches full torque capacity of the engine and the offgoing clutch is completely exhausted.

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检测DCT从所获得的档位到期望档位的请求的开机降档。 识别离合器和后退离合器用于从输入离合器进行上电降档，并且控制器确定发动机转速是否达到目标同步转速。 当所需齿轮的叉已经接合并以另一校准的斜坡速率释放离合离合器时，控制器以校准的斜坡速率增加迎接的离合器扭矩。 如果发动机闪光灯存在，则控制器调整即将到来的离合器斜坡速率，使用发动机转矩管理来控制喇叭口，并允许离合器离合器继续分离。 当来回的离合器达到发动机的全部扭矩容量并且离合器离合器完全耗尽时，上电降档完成。

公开(公告)号：US09316271B2

公开(公告)日：2016-04-19

申请号：US14338997

申请日：2014-07-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Steven P. Moorman ,  Brandon Fell ,  Mateusz Nowak

IPC: B60W10/02 ,  F16D48/02 ,  F16D25/06 ,  B60W20/00

CPC classification number: F16D25/14 ,  B60W10/02 ,  B60W20/40 ,  F16D25/06 ,  F16D48/02 ,  F16D48/062 ,  F16D2500/3026 ,  F16D2500/50236 ,  F16D2500/70217 ,  F16D2500/70235 ,  F16D2500/70605

Abstract: A vehicle or other system includes hydraulic fluid, an actuatable device such as a clutch that includes a linear actuator, e.g., a clutch piston. The linear actuator is moveable via a pressure from the fluid to actuate the actuatable device. A position sensor measures and outputs a position of the linear actuator as a position signal. A controller is programmed to generate increasing and decreasing position-to-pressure (PTP) curves via measurement of the position, at a predetermined time, in response to a series of respectively increasing and decreasing pressure step commands. The controller adjusts the PTP curves using a calibrated set of offsets, locates a PTP point in a hysteresis range between the adjusted PTP curves, and controls the device using the PTP point. The offsets may include a temperature of the fluid, velocity of the linear actuator, and/or an engine speed.

Abstract translation: 车辆或其他系统包括液压流体，可致动装置，例如包括线性致动器（例如离合器活塞）的离合器。 线性致动器可以通过来自流体的压力移动以致动可启动装置。 位置传感器测量并输出线性致动器的位置作为位置信号。 控制器被编程为响应于一系列分别增加和减少的压力步骤命令，在预定时间通过测量位置来产生增加和减小的位置压力（PTP）曲线。 控制器使用校准的偏移量调整PTP曲线，将PTP点定位在调整后的PTP曲线之间的滞后范围内，并使用PTP点控制设备。 偏移可以包括流体的温度，线性致动器的速度和/或发动机速度。

公开(公告)号：US20150260238A1

公开(公告)日：2015-09-17

申请号：US14338997

申请日：2014-07-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Steven P. Moorman ,  Brandon Fell ,  Mateusz Nowak

IPC: F16D48/02 ,  F16D25/06

CPC classification number: F16D25/14 ,  B60W10/02 ,  B60W20/40 ,  F16D25/06 ,  F16D48/02 ,  F16D48/062 ,  F16D2500/3026 ,  F16D2500/50236 ,  F16D2500/70217 ,  F16D2500/70235 ,  F16D2500/70605

Abstract: A vehicle or other system includes hydraulic fluid, an actuatable device such as a clutch that includes a linear actuator, e.g., a clutch piston. The linear actuator is moveable via a pressure from the fluid to actuate the actuatable device. A position sensor measures and outputs a position of the linear actuator as a position signal. A controller is programmed to generate increasing and decreasing position-to-pressure (PTP) curves via measurement of the position, at a predetermined time, in response to a series of respectively increasing and decreasing pressure step commands. The controller adjusts the PTP curves using a calibrated set of offsets, locates a PTP point in a hysteresis range between the adjusted PTP curves, and controls the device using the PTP point. The offsets may include a temperature of the fluid, velocity of the linear actuator, and/or an engine speed.

Abstract translation: 车辆或其他系统包括液压流体，可致动装置，例如包括线性致动器（例如离合器活塞）的离合器。 线性致动器可以通过来自流体的压力移动以致动可启动装置。 位置传感器测量并输出线性致动器的位置作为位置信号。 控制器被编程为响应于一系列分别增加和减少的压力步骤命令，在预定时间通过测量位置来产生增加和减小的位置压力（PTP）曲线。 控制器使用校准的偏移量调整PTP曲线，将PTP点定位在调整后的PTP曲线之间的滞后范围内，并使用PTP点控制设备。 偏移可以包括流体的温度，线性致动器的速度和/或发动机速度。

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。