公开(公告)号：US07556578B2

公开(公告)日：2009-07-07

申请号：US11553064

申请日：2006-10-26

Applicant: Jy-Jen F. Sah ,  Aniket Kothari ,  Bryan R. Snyder ,  Michael D. Foster

Inventor： Jy-Jen F. Sah ,  Aniket Kothari ,  Bryan R. Snyder ,  Michael D. Foster

IPC: F16H3/72

CPC classification number: B60W20/30 ,  B60K1/02 ,  B60K6/365 ,  B60K6/40 ,  B60K6/445 ,  B60K2001/003 ,  B60L2240/425 ,  B60W10/08 ,  B60W10/101 ,  B60W10/11 ,  B60W10/30 ,  B60W20/00 ,  B60W2510/087 ,  B60W2550/12 ,  F16H3/728 ,  F16H57/0413 ,  F16H2037/0866 ,  F16H2037/102 ,  F16H2037/104 ,  F16H2037/106 ,  Y02T10/6239 ,  Y02T10/642

Abstract: A method and an apparatus for controlling an electro-mechanical transmission selectively operative in a plurality of fixed gear modes and continuously variable modes is provided. The exemplary transmission comprises first and second electrical machines and a hydraulic circuit comprising a plurality of pressure control devices and flow management valves. The method comprises monitoring an operating temperature of the electrical machines. A cooling flow rate in the hydraulic circuit effective to reduce the operating temperature of the electrical machines is determined. Availability of active cooling for each of the electrical machines is determined. Hydraulic flow in the hydraulic circuit is selectively controlled.

Abstract translation: 提供一种用于控制选择性地以多个固定齿轮模式和连续可变模式操作的机电传动的方法和装置。 示例性变速器包括第一和第二电机以及包括多个压力控制装置和流量管理阀的液压回路。 该方法包括监测电机的工作温度。 确定有效降低电机的工作温度的液压回路中的冷却流量。 确定每个电机的主动冷却的可用性。 选择性地控制液压回路中的液压流动。

公开(公告)号：US20090112422A1

公开(公告)日：2009-04-30

申请号：US12249342

申请日：2008-10-10

Applicant: Jy-Jen F. Sah ,  Ali K. Naqvi ,  Michael D. Foster

Inventor： Jy-Jen F. Sah ,  Ali K. Naqvi ,  Michael D. Foster

IPC: G06F17/00

CPC classification number: B60W20/40 ,  B60K6/365 ,  B60K6/445 ,  B60K6/547 ,  B60L7/14 ,  B60L11/123 ,  B60L11/14 ,  B60L2220/18 ,  B60L2240/425 ,  B60L2240/441 ,  B60L2240/485 ,  B60L2240/486 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W20/00 ,  B60W2510/0638 ,  B60W2510/087 ,  B60W2510/104 ,  B60W2510/107 ,  B60W2540/10 ,  B60W2540/12 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/642 ,  Y02T10/7077

Abstract: A method for controlling an electromechanical transmission includes monitoring a current hydraulic circuit oil temperature, monitoring a current state of flow management valves, monitoring a command for cooling of electric machines, monitoring a desired transmission operating range state, utilizing a state machine to determine a sequence for controlling positions of the flow management valves to achieve the desired transmission operating range state based upon the monitored properties.

Abstract translation: 一种用于控制机电变速器的方法，包括监测当前液压回路油温度，监测流量管理阀的当前状态，监测电机冷却指令，监测所需变速器运行范围状态，利用状态机确定序列 用于控制流量管理阀的位置以基于所监视的特性实现期望的变速器操作范围状态。

公开(公告)号：US07508100B2

公开(公告)日：2009-03-24

申请号：US11060068

申请日：2005-02-17

Applicant: Michael D. Foster

Inventor： Michael D. Foster

IPC: H02K9/19

CPC classification number: B60K6/26 ,  B60K1/02 ,  B60K6/365 ,  B60K6/405 ,  B60K6/445 ,  B60K2001/003 ,  F16H57/04 ,  H02K7/006 ,  H02K9/197 ,  Y02T10/6239

Abstract: An electromechanical transmission includes a rotor supported by a rotor hub that has at least one passage formed therein for providing cooling fluid flow to the rotor. Preferably, cooling fluid is provided to the passage through an orifice to control flow rate. An inner diameter of the rotor is supported by the rotor hub and fluid is pooled by the rotor hub opposite the rotor inner diameter for cooling thereof. Preferably, fluid is thrown by centrifugal force from the rotor hub onto rotor ends and then onto an inner diameter side of stator windings of a stator surrounding the rotor. A method of cooling an electromechanical transmission is also provided.

Abstract translation: 机电变速器包括由转子毂支撑的转子，转子毂具有形成在其中的至少一个通道，用于向转子提供冷却流体流。 优选地，冷却流体被提供到通过孔口的通道以控制流速。 转子的内径由转子毂支撑，并且流体通过与转子内径相反的转子毂汇集，以进行冷却。 优选地，流体通过离心力从转子轮毂投掷到转子端部上，然后被引导到围绕转子的定子的定子绕组的内径侧。 还提供了一种冷却机电变速器的方法。

公开(公告)号：US20080223685A1

公开(公告)日：2008-09-18

申请号：US11685963

申请日：2007-03-14

Applicant: James A. Raszkowski ,  Michael D. Foster ,  Kevin C. Beckner

Inventor： James A. Raszkowski ,  Michael D. Foster ,  Kevin C. Beckner

IPC: F16D25/12

CPC classification number: F16D25/123

Abstract: An assembly and method is provided for reducing clutch wear due to centrifugal apply pressure within a clutch-apply cavity. The assembly comprises a rotatable clutch housing, a clutch-apply piston disposed within a clutch-apply cavity, and a balance piston. The balance and apply pistons define a balance cavity including a liquid fill channel and a dedicated air exhaust channel having a control radius configured to at least partially offset or compensate for the centrifugal apply force generated within the clutch-apply cavity when the clutch assembly rotates. The method includes configuring the balance cavity with an exhaust channel for exhausting fluid, and providing the exhaust channel with a control radius determined by the innermost radius of rotating fluid within the balance cavity as measured with respect to the centerline of rotation of the clutch assembly, the control radius being suitable for exhausting any excess of centrifugal balance force over centrifugal apply force.

Abstract translation: 提供了一种组件和方法，用于减少由于离合器施加空腔内的离心施加压力引起的离合器磨损。 组件包括可旋转离合器壳体，设置在离合器施加腔内的离合器施加活塞和平衡活塞。 平衡和施加活塞限定了包括液体填充通道和专用排气通道的平衡腔，其具有被配置为当离合器组件旋转时至少部分地偏置或补偿在离合器施加空腔内产生的离心施加力的控制半径。 该方法包括用平衡空腔配置排气通道，用于排出流体，以及为排气通道提供由相对于离合器组件的旋转中心线测量的由平衡腔内的旋转流体的最内半径确定的控制半径， 控制半径适用于通过离心施加力排出任何过量的离心平衡力。

公开(公告)号：US08157076B2

公开(公告)日：2012-04-17

申请号：US12255050

申请日：2008-10-21

Applicant: Michael D. Foster

Inventor： Michael D. Foster

IPC: B60T11/10 ,  F16H59/00

CPC classification number: F16H63/3483 ,  Y10T74/19251 ,  Y10T74/20024

Abstract: A servo valve for shifting a transmission between a park and out of park position includes a valve housing and a park servo. A first and second solenoid is disposed in the valve housing for transmitting a respective first or second signal to shift the transmission to the respective first or second state of operation. The park servo is fluidly connected to the transmission and is responsive to the first and second signals to shift the transmission to the respective positions. Fluid pressure within the valve housing moves a valve member therein to move a piston within the park servo to shift the transmission to the corresponding position. A third solenoid transmits a third signal in combination with the second signal to latch and hold the valve member in the corresponding position.

Abstract translation: 用于在公园和停车位置之间移动变速器的伺服阀包括阀壳体和驻车伺服机构。 第一和第二螺线管设置在阀壳体中，用于传送相应的第一或第二信号，以将变速器移动到相应的第一或第二操作状态。 驻车伺服器流体地连接到变速器，并且响应于第一和第二信号将变速器移动到相应的位置。 阀壳体内的流体压力将阀构件移动到其中以在驻车伺服器内移动活塞以将变速器移动到相应的位置。 第三螺线管与第二信号组合地传送第三信号以将阀构件锁定并保持在相应的位置。

公开(公告)号：US08021257B2

公开(公告)日：2011-09-20

申请号：US12333591

申请日：2008-12-12

Applicant: Michael D. Foster ,  Jy-Jen F. Sah ,  Peter E. Wu

Inventor： Michael D. Foster ,  Jy-Jen F. Sah ,  Peter E. Wu

IPC: F16H3/72 ,  F16H31/00

CPC classification number: F16H61/12 ,  F16H3/728 ,  F16H61/0206 ,  F16H2061/1232 ,  F16H2061/126

Abstract: A transmission includes two blocking valves that control fluid pressure to a plurality of clutches. The blocking valves are characterized by a plurality of states that result in at least three transmission operating conditions. Each of the three operating conditions is characterized by fluid pressure being unavailable to at least one of the clutches.

Abstract translation: 变速器包括控制多个离合器的流体压力的两个截止阀。 阻塞阀的特征在于导致至少三个传动操作条件的多个状态。 三个操作条件中的每一个的特征在于至少一个离合器不能使用流体压力。

公开(公告)号：US20110106351A1

公开(公告)日：2011-05-05

申请号：US12610552

申请日：2009-11-02

Applicant: Jy-Jen F. Sah ,  Michael D. Foster

Inventor： Jy-Jen F. Sah ,  Michael D. Foster

IPC: G06F19/00

CPC classification number: B60K6/445 ,  B60K6/365 ,  B60L2240/425 ,  B60W2510/087 ,  Y02T10/6239 ,  Y02T10/642

Abstract: A method for controlling cooling of one or more motor/generators includes monitoring the stator temperature of the motor/generator and power loss of the motor/generator. Total cooling flow is estimated from the monitored stator temperature and power loss and a cooling line pressure is determined from a lookup table. The lookup table includes total cooling flow as a function of cooling line pressure. The method further determines a non-cooling line pressure and combines the non-cooling line pressure with the cooling line pressure to determine a first total line pressure. The transmission is commanded to operate at the first total line pressure.

Abstract translation: 一种用于控制一个或多个电动机/发电机的冷却的方法包括监测电动机/发电机的定子温度和电动机/发电机的功率损耗。 根据监控的定子温度和功率损耗估计总冷却流量，并从查找表确定冷却管路压力。 查找表包括作为冷却管路压力的函数的总冷却流量。 该方法进一步确定非冷却管路压力，并将非冷却管路压力与冷却管道压力相结合以确定第一总管路压力。 指令变速器以第一总线压力运行。

公开(公告)号：US20100093477A1

公开(公告)日：2010-04-15

申请号：US12250919

申请日：2008-10-14

Applicant: Michael D. Foster ,  Jy-Jen F. Sah ,  Peter E. Wu

Inventor： Michael D. Foster ,  Jy-Jen F. Sah ,  Peter E. Wu

IPC: F16H31/00 ,  F16H61/12

CPC classification number: B60W20/15 ,  B60K1/02 ,  B60K6/365 ,  B60K6/405 ,  B60K6/445 ,  B60K6/547 ,  B60W10/08 ,  B60W10/10 ,  B60W10/115 ,  B60W20/00 ,  F16H61/12 ,  F16H2061/1232 ,  F16H2061/1244 ,  F16H2061/1292 ,  F16H2061/6603 ,  Y02T10/6239

Abstract: An electrically variable transmission (EVT) selectively establishes various EVT modes and a neutral mode. The EVT includes a source of pressurized fluid, fluid-actuated clutches, various solenoid-actuated valves including trim valves and blocking valves adapted to control a flow of pressurized fluid to the clutches to establish the transmission operating modes, and an electronic control unit (ECU). The ECU actuates different combinations of the solenoid-actuated valves to establish the different transmission modes. The solenoid-actuated valves are configured in such a manner as to provide the EVT with one or more default operating modes in the event the ECU temporarily loses electrical power. Depending on the particular configuration, the default modes can be the neutral mode alone, or the neutral mode combined with one or more of the EVT modes, with the EVT modes enabled by providing one or both of the blocking valves with a latching feature.

Abstract translation: 电动变速器（EVT）选择性地建立各种EVT模式和中立模式。 EVT包括加压流体源，流体驱动离合器，各种电磁致动阀，包括调节阀和阻塞阀，其适于控制加压流体流到离合器以建立变速器操作模式，以及电子控制单元（ECU ）。 ECU启动电磁阀的不同组合以建立不同的传动模式。 电磁阀被构造成在ECU暂时失去电力的情况下向EVT提供一个或多个默认操作模式。 根据具体配置，默认模式可以是单独的空档模式，也可以是与一种或多种EVT模式组合的中性模式，通过为一个或两个阻塞阀提供锁定功能，EVT模式启用。

公开(公告)号：US20090253552A1

公开(公告)日：2009-10-08

申请号：US12185849

申请日：2008-08-05

Applicant: Michael D. Foster

Inventor： Michael D. Foster

IPC: F16H61/26 ,  B60W10/02

CPC classification number: B60W20/50 ,  B60K1/02 ,  B60K6/365 ,  B60K6/445 ,  B60K6/547 ,  B60W10/02 ,  B60W10/115 ,  B60W20/00 ,  F16D48/066 ,  F16D2500/1066 ,  F16D2500/3024 ,  F16D2500/506 ,  F16D2500/5108 ,  F16H61/12 ,  F16H2059/683 ,  F16H2061/1208 ,  F16H2061/1224 ,  F16H2061/1264 ,  Y02T10/6239 ,  Y10S477/906 ,  Y10T477/6934 ,  Y10T477/69363 ,  Y10T477/75

Abstract: The present invention provides advanced hardware diagnostic detection for the clutch control components in a hydraulic control module of a multi-mode hybrid transmission. The detection scheme of the present invention utilizes pressure switch sensors to detect the position of each of the valves associated with the clutch control mechanization. The mechanization of these sensors with the valves provides the ability to clearly define the position of each of the valves, while also enabling the transmission electro-hydraulic control module (TEHCM) to diagnose the state of health of each pressure switch. This will allow the diagnostics to differentiate between a failed switch and a failed (e.g., “stuck” or “out of position”) valve. The present invention offers the ability to safely diagnose the clutch control components in a power transmission, while preventing unexpected and undesired shift sequencing within the transmission.

Abstract translation: 本发明为多模混合变速器的液压控制模块中的离合器控制部件提供先进的硬件诊断检测。 本发明的检测方案利用压力开关传感器来检测与离合器控制机械化相关联的每个阀的位置。 这些传感器与阀门的机械化提供了清楚地定义每个阀的位置的能力，同时还使得变速器电液控制模块（TEHCM）能够诊断每个压力开关的健康状态。 这将允许诊断来区分故障开关和故障（例如，“卡住”或“脱离位置”）阀。 本发明提供了在电力传输中安全地诊断离合器控制部件的能力，同时防止变速器内意外和不期望的换档排序。

公开(公告)号：US07369930B2

公开(公告)日：2008-05-06

申请号：US10846017

申请日：2004-05-14

Applicant: Tung-Ming Hsieh ,  Gregory A. Hubbard ,  Michael D. Foster

Inventor： Tung-Ming Hsieh ,  Gregory A. Hubbard ,  Michael D. Foster

IPC: G06F19/00

CPC classification number: G05D1/0272 ,  B60K6/365 ,  B60K6/445 ,  F16D48/066 ,  F16D2500/1027 ,  F16D2500/1066 ,  F16D2500/1087 ,  F16D2500/30406 ,  F16D2500/31426 ,  F16D2500/3144 ,  F16D2500/3166 ,  F16D2500/70406 ,  F16D2500/70426 ,  F16H3/728 ,  F16H61/0021 ,  F16H2037/102 ,  F16H2037/104 ,  F16H2200/2035 ,  F16H2342/044 ,  G05D1/024 ,  G05D1/027 ,  G05D1/0278 ,  G05D16/2066 ,  Y02T10/6239

Abstract: A method and apparatus to control an electrically variable transmission, by dynamically controlling system main hydraulic clutch pressures, based upon required clutch capacity, as determined by output load of the transmission. Included is a method to regulate hydraulic clutch pressure in an electrically variable transmission equipped with at least one clutch. This comprises monitoring magnitude of slippage of the clutches and controlling hydraulic boost pressure based upon the magnitude of clutch slippage. Controlling hydraulic boost pressure based upon the magnitude of clutch slippage comprises monitoring operator inputs, determining a requested operator torque command, and determining a required main boost pressure. The main boost pressure is based upon the requested operator torque command, the monitored operator inputs, parameters of the EVT and clutches. Commanded main boost pressure is then determined based upon the determined required main boost pressure.

Abstract translation: 通过根据所需的离合器容量动态地控制系统主液压离合器压力来控制电动变速器的方法和装置，如通过变速器的输出负载所确定的。 包括一种在配备有至少一个离合器的电动变速箱中调节液压离合器压力的方法。 这包括监测离合器滑动的大小并基于离合器滑动的大小来控制液压增压压力。 基于离合器滑动的大小来控制液压增压压力包括监视操作者输入，确定所请求的操作者扭矩指令，以及确定所需的主增压压力。 主增压基于所要求的操作者扭矩指令，监控的操作员输入，EVT和离合器的参数。 然后基于确定的所需主增压压力来确定指令的主增压压力。