公开(公告)号：US20140162843A1

公开(公告)日：2014-06-12

申请号：US13706396

申请日：2012-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Farzad Samie ,  Andrew L. Bartos ,  Dongxu Li ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Xingyong Song

IPC: B60W10/02

CPC classification number: B60W10/023 ,  F16H61/0009 ,  F16H61/0206 ,  F16H61/143 ,  F16H61/686 ,  Y10T477/635

Abstract: A vehicle includes an engine, torque converter assembly, and transmission. The torque converter assembly includes a torque converter clutch (TCC). The transmission is connected to the engine via the torque converter assembly, and includes rotating and braking clutches, a pump, and a valve body assembly (VBA). The VBA includes Micro Electro Mechanical Systems (MEMS) pressure sensors and high-flow, hybrid MEMS flow control valves. Each MEMS pressure sensor and each MEMS control valve is in fluid communication with a corresponding one of the TCC, the rotating, and the braking clutches. The VBA includes first and second low-flow, fully MEMS valves which control line pressure to the VBA and fluid pressure to the TCC, respectively. The VBA delivers fluid pressure to the clutches, alone or in different combinations, to establish at least six different forward drive states of the transmission.

Abstract translation: 车辆包括发动机，变矩器组件和变速器。 变矩器组件包括变矩器离合器（TCC）。 变速器通过变矩器组件连接到发动机，并且包括旋转和制动离合器，泵和阀体组件（VBA）。 VBA包括微机电系统（MEMS）压力传感器和高流量混合MEMS流量控制阀。 每个MEMS压力传感器和每个MEMS控制阀与TCC，旋转和制动离合器中相应的一个流体连通。 VBA包括第一和第二低流量，完全MEMS阀门，分别控制VBA的管路压力和TCC的流体压力。 VBA单独或以不同的组合向离合器提供流体压力，以建立至少六个不同的传动装置的正向传动状态。

公开(公告)号：US08983746B1

公开(公告)日：2015-03-17

申请号：US14051615

申请日：2013-10-11

Applicant: GM Global Technology Operations LLC

Inventor： Xingyong Song ,  Kumaraswamy V. Hebbale ,  Farzad Samie

IPC: G06F7/00 ,  F16D48/06

CPC classification number: F16D48/06 ,  F16D2500/1045 ,  F16D2500/1107 ,  F16D2500/30404 ,  F16D2500/30405 ,  F16D2500/3166 ,  F16D2500/3168 ,  F16D2500/708

Abstract: A method of modeling initial temperatures of a dry DCT includes reactivating a controller after a time lapse between first and second clock times representing an offline period. The last known temperatures of a first component and a second component are read and a first temperature difference therebetween is calculated. The method calculates a stop time and a start time on a predefined exponential function from the calculated temperature difference. A first conductive heat transfer between the first and second components is calculated by integrating the predefined exponential function between the stop time and the start time. Based upon the calculated first conductive heat transfer, a first conductive temperature change between the first and second components is calculated. A starting temperature of the first component is calculated from first conductive temperature change, and a control action on the dry DCT is executed based upon the calculated starting temperature.

Abstract translation: 对干式DCT的初始温度进行建模的方法包括在代表离线时段的第一和第二时钟时间之间的时间间隔之后重新激活控制器。 读取第一组分和第二组分的最后已知温度，并计算它们之间的第一温度差。 该方法根据计算的温度差计算预定指数函数上的停止时间和开始时间。 通过在停止时间和开始时间之间积分预定义的指数函数来计算第一和第二分量之间的第一导电热传递。 基于计算的第一导电热传递，计算第一和第二分量之间的第一导电温度变化。 根据第一导电温度变化计算第一分量的起始温度，并基于计算的起始温度执行对干DCT的控制动作。

公开(公告)号：US08747270B1

公开(公告)日：2014-06-10

申请号：US13706396

申请日：2012-12-06

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Andrew L. Bartos ,  Dongxu Li ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Xingyong Song

IPC: F16H31/00

CPC classification number: B60W10/023 ,  F16H61/0009 ,  F16H61/0206 ,  F16H61/143 ,  F16H61/686 ,  Y10T477/635

Abstract: A vehicle includes an engine, torque converter assembly, and transmission. The torque converter assembly includes a torque converter clutch (TCC). The transmission is connected to the engine via the torque converter assembly, and includes rotating and braking clutches, a pump, and a valve body assembly (VBA). The VBA includes Micro Electro Mechanical Systems (MEMS) pressure sensors and high-flow, hybrid MEMS flow control valves. Each MEMS pressure sensor and each MEMS control valve is in fluid communication with a corresponding one of the TCC, the rotating, and the braking clutches. The VBA includes first and second low-flow, fully MEMS valves which control line pressure to the VBA and fluid pressure to the TCC, respectively. The VBA delivers fluid pressure to the clutches, alone or in different combinations, to establish at least six different forward drive states of the transmission.

Abstract translation: 车辆包括发动机，变矩器组件和变速器。 变矩器组件包括变矩器离合器（TCC）。 变速器通过变矩器组件连接到发动机，并且包括旋转和制动离合器，泵和阀体组件（VBA）。 VBA包括微机电系统（MEMS）压力传感器和高流量混合MEMS流量控制阀。 每个MEMS压力传感器和每个MEMS控制阀与TCC，旋转和制动离合器中相应的一个流体连通。 VBA包括第一和第二个低流量，完全MEMS阀门，分别控制VBA的管路压力和TCC的流体压力。 VBA单独或以不同的组合向离合器提供流体压力，以建立至少六个不同的传动装置的正向传动状态。

公开(公告)号：US20150316167A1

公开(公告)日：2015-11-05

申请号：US14268526

申请日：2014-05-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Microstaq Inc.

Inventor： Dongxu Li ,  Chunhao J. Lee ,  Bret M. Olson ,  Xingyong Song ,  Farzad Samie ,  Edward N. Fuller

IPC: F16K31/02

CPC classification number: F16K99/0044 ,  F16K99/0007

Abstract: A method of controlling a Micro-Electro-Mechanical System (MEMS) valve includes defining a desired pressure output for the MEMS valve. The desired pressure output is related to a control reference value. The control reference value relates an output pressure of the MEMS valve to a measurable characteristic of the MEMS valve. The measurable characteristic may include a resistance, an electrical power, or an electrical current of the MEMS valve. The control reference value is converted to an initial Pulse Width Modulated (PWM) signal that is applied to the MEMS valve. The initial PWM signal may be adjusted to define an adjusted PWM signal based upon a difference between an actual value of the measurable characteristic at the initial PWM signal and the control reference value, until the actual value of the measurable characteristic at the adjusted PWM signal is within a pre-defined range of the control reference value.

Abstract translation: 控制微机电系统（MEMS）阀的方法包括限定用于MEMS阀的期望的压力输出。 所需的压力输出与控制参考值有关。 控制参考值将MEMS阀的输出压力与MEMS阀的可测量特性相关联。 可测量的特性可以包括MEMS阀的电阻，电功率或电流。 控制参考值被转换为施加到MEMS阀的初始脉宽调制（PWM）信号。 可以基于初始PWM信号的可测量特性的实际值与控制参考值之间的差异来调整初始PWM信号以定义调整的PWM信号，直到调节后的PWM信号的可测量特性的实际值为 在控制参考值的预定义范围内。