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    Voltage sag prevention apparatus and method
    1.
    发明授权
    Voltage sag prevention apparatus and method 有权
    电压骤降​​防止装置及方法

    公开(公告)号：US07631627B2

    公开(公告)日：2009-12-15

    申请号：US11928175

    申请日：2007-10-30

    申请人： Shawn D. Sarbacker ,  Poh Fong Chin

    发明人： Shawn D. Sarbacker ,  Poh Fong Chin

    IPC分类号： F02N17/00

    CPC分类号： F02N11/0862 ,  F02N2011/0885 ,  F02N2011/0896

    摘要： A vehicle includes an engine, a controller for turning off the engine when the vehicle is idle, a motor/generator for starting the engine, an inverter for converting a DC auxiliary voltage from a battery into an AC voltage for powering the motor/generator, and a device for isolating a DC voltage from the DC auxiliary voltage to prevent voltage sag in a vehicle system during engine starting. The device includes a transformer, a rectifier/regulator, and an isolator. A mechanical relay opens, or an FET is activated, to isolate the DC voltage during engine start. A method for preventing voltage sag in an auxiliary vehicle system includes detecting a commanded engine start, comparing a measured auxiliary voltage to a threshold, isolating a predetermined DC voltage from a DC auxiliary voltage when the measured auxiliary voltage is less than the threshold, and powering the auxiliary vehicle system using the isolated DC voltage.

    摘要翻译： 车辆包括发动机，当车辆空转时关闭发动机的控制器，用于启动发动机的电动机/发电机，用于将来自电池的直流辅助电压转换成用于为电动机/发电机供电的AC电压的逆变器， 以及用于将直流电压与直流辅助电压隔离以防止发动机启动期间车辆系统中的电压骤降的装置。 该装置包括变压器，整流器/调节器和隔离器。 在发动机启动期间，机械继电器打开或者FET被激活以隔离直流电压。 一种用于防止辅助车辆系统中的电压骤降的方法包括检测指令的发动机起动，将测量的辅助电压与阈值进行比较，当所测量的辅助电压小于阈值时，将预定的DC电压与DC辅助电压隔离，并且为 辅助车辆系统使用隔离的直流电压。

    Voltage Sag Prevention Apparatus and Method
    2.
    发明申请
    Voltage Sag Prevention Apparatus and Method 有权
    电压骤降​​预防装置及方法

    公开(公告)号：US20090107443A1

    公开(公告)日：2009-04-30

    申请号：US11928175

    申请日：2007-10-30

    申请人： Shawn D. Sarbacker ,  Poh Fong Chin

    发明人： Shawn D. Sarbacker ,  Poh Fong Chin

    IPC分类号： F02N11/08 ,  H02M1/00 ,  H02M9/02

    CPC分类号： F02N11/0862 ,  F02N2011/0885 ,  F02N2011/0896

    摘要： A vehicle includes an engine, a controller for turning off the engine when the vehicle is idle, a motor/generator for starting the engine, an inverter for converting a DC auxiliary voltage from a battery into an AC voltage for powering the motor/generator, and a device for isolating a DC voltage from the DC auxiliary voltage to prevent voltage sag in a vehicle system during engine starting. The device includes a transformer, a rectifier/regulator, and an isolator. A mechanical relay opens, or an FET is activated, to isolate the DC voltage during engine start. A method for preventing voltage sag in an auxiliary vehicle system includes detecting a commanded engine start, comparing a measured auxiliary voltage to a threshold, isolating a predetermined DC voltage from a DC auxiliary voltage when the measured auxiliary voltage is less than the threshold, and powering the auxiliary vehicle system using the isolated DC voltage.

    摘要翻译： 车辆包括发动机，当车辆空转时关闭发动机的控制器，用于启动发动机的电动机/发电机，用于将来自电池的DC辅助电压转换成用于为电动机/发电机供电的AC电压的逆变器， 以及用于将直流电压与直流辅助电压隔离以防止发动机启动期间车辆系统中的电压骤降的装置。 该装置包括变压器，整流器/调节器和隔离器。 在发动机启动期间，机械继电器打开或者FET被激活以隔离直流电压。 一种用于防止辅助车辆系统中的电压骤降的方法包括检测指令的发动机起动，将测量的辅助电压与阈值进行比较，当所测量的辅助电压小于阈值时，将预定的DC电压与DC辅助电压隔离，并且为 辅助车辆系统使用隔离的直流电压。

    PUMPING LOSS REDUCTION SYSTEMS AND METHODS
    3.
    发明申请
    PUMPING LOSS REDUCTION SYSTEMS AND METHODS 有权
    抽水减少系统和方法

    公开(公告)号：US20110100013A1

    公开(公告)日：2011-05-05

    申请号：US12629152

    申请日：2009-12-02

    申请人： Christopher E. Whitney ,  Poh Fong Chin ,  William L. Aldrich, III ,  Anthony H. Heap ,  Jeffrey M. Kaiser ,  Jun Lu

    发明人： Christopher E. Whitney ,  Poh Fong Chin ,  William L. Aldrich, III ,  Anthony H. Heap ,  Jeffrey M. Kaiser ,  Jun Lu

    IPC分类号： F01B21/04 ,  F02M63/02 ,  F02D43/00

    CPC分类号： F02D41/0005 ,  F02D41/0007 ,  F02D41/0215 ,  F02D41/0235 ,  F02D41/1497 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0804 ,  F02D2200/1004 ,  F02D2250/18 ,  F02D2250/22 ,  Y02T10/42

    摘要： An engine control system comprises a base air per cylinder (APC) module, a catalyst temperature adjustment module, an ambient temperature adjustment module, and an APC adjustment module. The base APC module determines a base APC to reduce first engine pumping losses during a first deceleration fuel cutoff (DFCO) event relative to second engine pumping losses during a second DFCO event. The catalyst temperature adjustment module determines a catalyst temperature adjustment based on a catalyst temperature during the first DFCO event. The ambient temperature adjustment module determines an ambient temperature adjustment based on an ambient air temperature during the first DFCO event. The APC adjustment module selectively adjusts the base APC based on the catalyst temperature adjustment and the ambient temperature adjustment and controls at least one of the engine airflow actuators based on the adjusted base APC during the first DFCO event.

    摘要翻译： 发动机控制系统包括每缸气体（APC）模块，催化剂温度调节模块，环境温度调节模块和APC调节模块。 在第二DFCO事件期间，基本APC模块确定基本APC以减少在第一减速燃料切断（DFCO）事件期间相对于第二发动机泵送损失的第一发动机泵送损失。 催化剂温度调节模块基于第一DFCO事件期间的催化剂温度来确定催化剂温度调节。 环境温度调节模块基于第一DFCO事件期间的环境空气温度来确定环境温度调节。 APC调节模块基于催化剂温度调节和环境温度调节来选择性地调节基座APC，并且在第一DFCO事件期间基于经调整的基座APC控制至少一个发动机气流致动器。

    Method of cold starting an internal combustion engine in hybrid applications
    4.
    发明授权
    Method of cold starting an internal combustion engine in hybrid applications 有权
    混合应用中冷启动内燃机的方法

    公开(公告)号：US09022002B2

    公开(公告)日：2015-05-05

    申请号：US13517687

    申请日：2012-06-14

    申请人： R Travis Schwenke ,  Todd D. Brandel ,  Poh Fong Chin

    发明人： R Travis Schwenke ,  Todd D. Brandel ,  Poh Fong Chin

    IPC分类号： F02N11/08 ,  F02N15/00 ,  B60W10/06 ,  B60W20/00

    CPC分类号： F02N15/00 ,  B60W10/06 ,  B60W20/10 ,  B60W2710/0644 ,  F02N11/0814 ,  F02N11/0848 ,  F02N2200/023 ,  F02N2200/061 ,  F02N2300/102

    摘要： A method to start operation of an internal combustion engine of a hybrid powertrain includes initiating rotation of a crankshaft of the engine with at least one electric machine in accordance with a first ramping profile until a first predetermined speed is achieved in response to an engine start event during a cold start condition. Engine speed is monitored and the engine is fired while controlling the engine speed to maintain the first predetermined speed with the at least one electric machine. The first ramping profile is adjusted at a rate corresponding to an estimated rate at which the engine speed is increasing during the engine firing. When at least one predetermined combustion quality parameter is achieved, the engine speed is controlled in accordance with a second ramping profile until a second predetermined speed is achieved based on controlling combustion parameters of the engine.

    摘要翻译： 一种启动混合动力系的内燃机的操作的方法包括根据第一斜坡轮廓，用至少一个电机启动发动机曲轴的转动，直到响应于发动机起动事件达到第一预定速度 在冷启动条件。 在控制发动机转速以与至少一台电机保持第一预定速度的同时监视发动机转速并引擎发射。 以对应于发动机起动期间发动机转速增加的估计速率的速率来调节第一斜坡曲线。 当实现至少一个预定的燃烧质量参数时，根据第二斜坡轮廓来控制发动机转速，直到基于控制发动机的燃烧参数来实现第二预定速度。

    Pumping loss reduction systems and methods
    6.
    发明授权
    Pumping loss reduction systems and methods 有权
    减排系统和方法

    公开(公告)号：US08086390B2

    公开(公告)日：2011-12-27

    申请号：US12629152

    申请日：2009-12-02

    申请人： Christopher E. Whitney ,  Poh Fong Chin ,  William L. Aldrich, III ,  Anthony H. Heap ,  Jeffrey M. Kaiser ,  Jun Lu

    发明人： Christopher E. Whitney ,  Poh Fong Chin ,  William L. Aldrich, III ,  Anthony H. Heap ,  Jeffrey M. Kaiser ,  Jun Lu

    IPC分类号： G06F19/00

    CPC分类号： F02D41/0005 ,  F02D41/0007 ,  F02D41/0215 ,  F02D41/0235 ,  F02D41/1497 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0804 ,  F02D2200/1004 ,  F02D2250/18 ,  F02D2250/22 ,  Y02T10/42

    摘要： An engine control system comprises a base air per cylinder (APC) module, a catalyst temperature adjustment module, an ambient temperature adjustment module, and an APC adjustment module. The base APC module determines a base APC to reduce first engine pumping losses during a first deceleration fuel cutoff (DFCO) event relative to second engine pumping losses during a second DFCO event. The catalyst temperature adjustment module determines a catalyst temperature adjustment based on a catalyst temperature during the first DFCO event. The ambient temperature adjustment module determines an ambient temperature adjustment based on an ambient air temperature during the first DFCO event. The APC adjustment module selectively adjusts the base APC based on the catalyst temperature adjustment and the ambient temperature adjustment and controls at least one of the engine airflow actuators based on the adjusted base APC during the first DFCO event.

    摘要翻译： 发动机控制系统包括每缸气体（APC）模块，催化剂温度调节模块，环境温度调节模块和APC调节模块。 在第二DFCO事件期间，基本APC模块确定基本APC以减少在第一减速燃料切断（DFCO）事件期间相对于第二发动机泵送损失的第一发动机泵送损失。 催化剂温度调节模块基于第一DFCO事件期间的催化剂温度来确定催化剂温度调节。 环境温度调节模块基于第一DFCO事件期间的环境空气温度来确定环境温度调节。 APC调节模块基于催化剂温度调节和环境温度调节来选择性地调节基座APC，并且在第一DFCO事件期间基于经调整的基座APC控制至少一个发动机气流致动器。

    METHOD OF COLD STARTING AN INTERNAL COMBUSTION ENGINE IN HYBRID APPLICATIONS
    8.
    发明申请
    METHOD OF COLD STARTING AN INTERNAL COMBUSTION ENGINE IN HYBRID APPLICATIONS 有权
    在混合应用中冷启动内燃机的方法

    公开(公告)号：US20130333655A1

    公开(公告)日：2013-12-19

    申请号：US13517687

    申请日：2012-06-14

    申请人： R. Travis Schwenke ,  Todd D. Brandel ,  Poh Fong Chin

    发明人： R. Travis Schwenke ,  Todd D. Brandel ,  Poh Fong Chin

    IPC分类号： F02N15/00

    CPC分类号： F02N15/00 ,  B60W10/06 ,  B60W20/10 ,  B60W2710/0644 ,  F02N11/0814 ,  F02N11/0848 ,  F02N2200/023 ,  F02N2200/061 ,  F02N2300/102

    摘要： A method to start operation of an internal combustion engine of a hybrid powertrain includes initiating rotation of a crankshaft of the engine with at least one electric machine in accordance with a first ramping profile until a first predetermined speed is achieved in response to an engine start event during a cold start condition. Engine speed is monitored and the engine is fired while controlling the engine speed to maintain the first predetermined speed with the at least one electric machine. The first ramping profile is adjusted at a rate corresponding to an estimated rate at which the engine speed is increasing during the engine firing. When at least one predetermined combustion quality parameter is achieved, the engine speed is controlled in accordance with a second ramping profile until a second predetermined speed is achieved based on controlling combustion parameters of the engine.

    摘要翻译： 一种启动混合动力系的内燃机的操作的方法包括根据第一斜坡轮廓，用至少一个电机启动发动机曲轴的转动，直到响应于发动机起动事件达到第一预定速度 在冷启动条件。 在控制发动机转速以与至少一台电机保持第一预定速度的同时监视发动机转速并引擎发射。 以对应于发动机起动期间发动机转速增加的估计速率的速率来调节第一斜坡曲线。 当实现至少一个预定的燃烧质量参数时，根据第二斜坡轮廓来控制发动机转速，直到基于控制发动机的燃烧参数来实现第二预定速度。

    Method and apparatus for executing a clutch-driven engine autostart operation
    10.
    发明授权
    Method and apparatus for executing a clutch-driven engine autostart operation 有权
    用于执行离合器驱动的发动机自动启动操作的方法和装置

    公开(公告)号：US08956265B2

    公开(公告)日：2015-02-17

    申请号：US13557424

    申请日：2012-07-25

    申请人： Poh Fong Chin ,  Jean Marie Miller ,  Allen J. Lehmen

    发明人： Poh Fong Chin ,  Jean Marie Miller ,  Allen J. Lehmen

    IPC分类号： B60W10/00

    CPC分类号： F16D48/00 ,  B60K6/365 ,  B60K6/445 ,  B60W10/06 ,  B60W10/115 ,  B60W20/40 ,  B60W30/18 ,  B60W2510/104 ,  Y02T10/6239 ,  Y10T477/6422

    摘要： A powertrain system includes an internal combustion engine, a multi-mode transmission and a driveline. A method for controlling the powertrain system in response to a command to execute an engine autostart operation during vehicle operation includes executing a clutch-driven engine autostart operation to start the engine upon determining that a present transmission output speed is greater than a minimum output speed for engine operation and upon determining that a selected clutch configured to effect a mechanical coupling between the engine and the driveline is activatable.

    摘要翻译： 动力系统包括内燃机，多模变速器和传动系。 一种用于响应于在车辆操作期间执行发动机自动启动操作的命令来控制动力系统的方法，包括执行离合器驱动的发动机自动启动操作以在确定当前变速器输出速度大于最小输出速度时起动发动机 并且在确定被配置为实现发动机和传动系统之间的机械联接的选定的离合器是可激活的。