System and method for controlling exhaust gas recirculation
    1.
    发明授权
    System and method for controlling exhaust gas recirculation 有权
    控制废气再循环的系统和方法

    公开(公告)号:US09279376B2

    公开(公告)日:2016-03-08

    申请号:US13162860

    申请日:2011-06-17

    Inventor: John R. Bucknell

    Abstract: A control system for an engine includes first and second modules. The first module estimates a total amount of exhaust gas recirculation (EGR) in the engine, wherein the total amount of EGR includes (i) EGR within cylinders of the engine and (ii) EGR flowing through an EGR system of the engine. The second module selectively controls an overlap of intake and exhaust valve timing in the engine based on (i) a position of an EGR valve in the EGR system and (ii) a comparison of the estimated total amount of EGR in the engine and an EGR threshold.

    Abstract translation: 用于发动机的控制系统包括第一和第二模块。 第一模块估计发动机中的废气再循环(EGR)的总量,其中EGR的总量包括(i)发动机气缸内的EGR和(ii)流过发动机的EGR系统的EGR。 第二模块基于(i)EGR系统中的EGR阀的位置和(ii)估计发动机中的EGR总量与EGR的比较,选择性地控制发动机中进气和排气门正时的重叠 阈。

    POSITION CONTROL OF FLOW CONTROL VALVES NEAR ENDSTOPS
    2.
    发明申请
    POSITION CONTROL OF FLOW CONTROL VALVES NEAR ENDSTOPS 审中-公开
    近端流量控制阀的位置控制

    公开(公告)号:US20160305312A1

    公开(公告)日:2016-10-20

    申请号:US14686278

    申请日:2015-04-14

    Abstract: Techniques for learning endstop position(s) of an actuator for a wastegate valve include detecting a learn condition and, in response to detecting the learn condition, performing a learn procedure for the actuator endstop position(s). The learn procedure includes commanding the actuator to a desired position past the endstop position corresponding to a fully-closed wastegate valve while rate-limiting a velocity of the actuator. When the difference reaches its maximum allowed value and the velocity falls below a fraction of its rate limit, the endstop position is learned. When the wastegate valve is requested open, the actuator is then controlled using the learned endstop position. Reference stiffness for a fully-closed wastegate valve could be obtained, and subsequent stiffness checks could then be periodically performed and, if less than the reference stiffness, a duty cycle of the actuator could be increased during open-loop control.

    Abstract translation: 用于学习用于废气门阀的致动器的止挡位置的技术包括检测学习状况,并且响应于检测到学习条件,执行致动器止挡位置的学习过程。 学习过程包括将速度限制致动器速度的速度限制在致动器的指令位置,超过对应于完全关闭的废气门阀的终止位置。 当差值达到其最大允许值并且速度低于其速率限制的一小部分时,将学习终止位置。 当废气阀被要求打开时,然后使用学习的止挡位置来控制致动器。 可以获得完全关闭的废气门阀的参考刚度,然后可以周期性地进行随后的刚度检查,并且如果小于参考刚度,则可以在开环控制期间增加致动器的占空比。

    CONTINUOUS ADAPTATION OF AN INTAKE OXYGEN SENSOR FOR PRESSURE, HUMIDITY AND AGING
    3.
    发明申请
    CONTINUOUS ADAPTATION OF AN INTAKE OXYGEN SENSOR FOR PRESSURE, HUMIDITY AND AGING 有权
    用于压力,湿度和老化的摄入氧传感器的连续适应

    公开(公告)号:US20160061151A1

    公开(公告)日:2016-03-03

    申请号:US14834719

    申请日:2015-08-25

    Abstract: A technique is provided for compensating an untrimmed oxygen (O2) sensor utilized in operation of an exhaust gas recalculation (EGR) system associated with an engine. The technique includes, in one implementation, receiving a measurement from the O2 sensor at a known pressure, where the O2 sensor is positioned on an intake side of an engine system. Humidity compensation and pressure compensation are then determined for the O2 sensor measurement, where the pressure compensation is based in part on the humidity compensation. The EGR system is controlled using the untrimmed O2 sensor measurement that has been compensated for pressure and humidity.

    Abstract translation: 提供了一种用于补偿在与发动机相关联的废气重新计算(EGR)系统的操作中使用的未调整氧(O 2)传感器的技术。 在一个实施方案中,该技术包括在已知压力下从O2传感器接收测量值,其中O 2传感器位于发动机系统的进气侧。 然后为O2传感器测量确定湿度补偿和压力补偿,其中压力补偿部分基于湿度补偿。 使用已经补偿了压力和湿度的未经测试的O2传感器测量来控制EGR系统。

    Thermal management exhaust treatment device and method of manufacture
    4.
    发明授权
    Thermal management exhaust treatment device and method of manufacture 有权
    热管理废气处理装置及其制造方法

    公开(公告)号:US08715580B2

    公开(公告)日:2014-05-06

    申请号:US12720227

    申请日:2010-03-09

    Inventor: John R. Bucknell

    Abstract: An exhaust gas treatment device is disposed in an exhaust gas treatment system and comprises a rolled metal cylinder of corrugated metal sheet having longitudinally extending passages extending axially from an inlet end to an outlet end and a conduit disposed between layers of the rolled metal cylinder and configured for circulation of a heat transfer medium therethrough, the conduit extending axially and radially the rolled metal cylinder.

    Abstract translation: 排气处理装置设置在废气处理系统中,并且包括波纹金属板的轧制金属圆筒,其具有从入口端到出口端轴向延伸的纵向延伸通道,以及布置在轧制金属圆筒的层之间的导管, 为了使传热介质循环通过,管道沿轧制的金属圆柱体轴向和径向延伸。

    ADAPTIVE HEAT EXCHANGE ARCHITECTURE FOR OPTIMUM ENERGY RECOVERY IN A WASTE HEAT RECOVERY ARCHITECTURE
    6.
    发明申请
    ADAPTIVE HEAT EXCHANGE ARCHITECTURE FOR OPTIMUM ENERGY RECOVERY IN A WASTE HEAT RECOVERY ARCHITECTURE 有权
    在废热回收建筑中进行最佳能源回收的自适应热交换架构

    公开(公告)号:US20130186088A1

    公开(公告)日:2013-07-25

    申请号:US13357202

    申请日:2012-01-24

    Abstract: A waste heat recovery system that efficiently converts waste heat from an engine coolant and an engine exhaust in a vehicle. The system includes a coolant heat exchanger that receives heat from the engine coolant, an exhaust heat exchanger that receives heat from the engine exhaust and an economizer heat exchanger. A plurality of valves control the flow of the fluid in different modes as determined by a power ratio between the heat provided by the exhaust heat exchanger and the heat provided by the coolant heat exchanger, including an economizer heat exchanger after coolant heat exchanger mode at low power ratios, where the fluid from the pump flows to the economizer heat exchanger after the coolant heat exchanger and an economizer heat exchanger before coolant heat exchanger mode at high power ratios, where the fluid from the pump flows to the economizer heat exchanger before the coolant heat exchanger.

    Abstract translation: 一种废热回收系统,其有效地将来自发动机冷却剂和车辆中的发动机排气的废热转化。 该系统包括从发动机冷却剂接收热量的冷却剂热交换器,从发动机排气口接收热量的排气热交换器和节能器热交换器。 多个阀门以不同的模式控制流体的流动,其由排气热交换器提供的热量与由冷却剂热交换器提供的热量之间的功率比确定,包括在低温冷却剂换热器模式之后的节能热交换器 功率比,在来自泵的流体在高功率比下的冷却剂热交换器模式之前,来自泵的流体在冷却剂热交换器和节能器热交换器之后流到节能器热交换器,其中来自泵的流体在冷却剂之前流到节能器热交换器 热交换器。

    SYSTEM AND METHOD FOR CONTROLLING EXHAUST GAS RECIRCULATION
    7.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING EXHAUST GAS RECIRCULATION 有权
    用于控制排气回收的系统和方法

    公开(公告)号:US20120323469A1

    公开(公告)日:2012-12-20

    申请号:US13162860

    申请日:2011-06-17

    Inventor: John R. Bucknell

    Abstract: A control system for an engine includes first and second modules. The first module estimates a total amount of exhaust gas recirculation (EGR) in the engine, wherein the total amount of EGR includes (i) EGR within cylinders of the engine and (ii) EGR flowing through an EGR system of the engine. The second module selectively controls an overlap of intake and exhaust valve timing in the engine based on (i) a position of an EGR valve in the EGR system and (ii) a comparison of the estimated total amount of EGR in the engine and an EGR threshold.

    Abstract translation: 用于发动机的控制系统包括第一和第二模块。 第一模块估计发动机中的废气再循环(EGR)的总量,其中EGR的总量包括(i)发动机气缸内的EGR和(ii)流过发动机的EGR系统的EGR。 第二模块基于(i)EGR系统中的EGR阀的位置和(ii)估计发动机中的EGR总量与EGR的比较,选择性地控制发动机中进气和排气门正时的重叠 阈。

    Crankcase vapor management system
    8.
    发明授权
    Crankcase vapor management system 有权
    曲轴箱蒸汽管理系统

    公开(公告)号:US07992548B2

    公开(公告)日:2011-08-09

    申请号:US12248089

    申请日:2008-10-09

    Abstract: An engine assembly includes a vapor canister in selective fluid communication with a crankcase to store alcohol vapor when the temperature inside the crankcase causes alcohol accumulated in the crankcase to boil. The vapor canister is in selective fluid communication with an air induction system to recirculate the alcohol vapor through the engine in a metered fashion.

    Abstract translation: 发动机组件包括与曲轴箱选择性流体连通的蒸汽罐,以在曲轴箱内的温度导致曲轴箱内积聚的醇沸腾时存储醇蒸气。 蒸汽罐与空气感应系统选择性地流体连通,以使计量的方式使酒精蒸汽再循环通过发动机。

    Internal Combustion Engine With Integrated Waste Heat Recovery System
    9.
    发明申请
    Internal Combustion Engine With Integrated Waste Heat Recovery System 审中-公开
    具有综合废热回收系统的内燃机

    公开(公告)号:US20100083919A1

    公开(公告)日:2010-04-08

    申请号:US12245227

    申请日:2008-10-03

    Inventor: John R. Bucknell

    CPC classification number: F02G5/04 F02G2260/00 Y02T10/166

    Abstract: An engine assembly may include a first heat exchanger, a fluid supply system providing a fluid flow to the first heat exchanger, a fuel system, an engine block defining first and second cylinder bores, a first piston disposed within the first cylinder bore, and a second piston disposed within the second cylinder bore. The first cylinder bore may receive fuel from the fuel system for combustion therein to drive the first piston. The fluid flow may be pressurized within the first heat exchanger and the pressurized fluid may be provided to the second cylinder bore to drive the second piston.

    Abstract translation: 发动机组件可以包括第一热交换器,向第一热交换器提供流体流的流体供应系统,燃料系统,限定第一和第二气缸孔的发动机缸,设置在第一气缸孔内的第一活塞,以及 第二活塞设置在第二气缸孔内。 第一气缸孔可以从燃料系统接收燃料以在其中燃烧以驱动第一活塞。 流体流可以在第一热交换器内被加压,并且加压流体可以被提供到第二气缸孔以驱动第二活塞。

    Adaptive heat exchange architecture for optimum energy recovery in a waste heat recovery architecture
    10.
    发明授权
    Adaptive heat exchange architecture for optimum energy recovery in a waste heat recovery architecture 有权
    自适应热交换架构,用于废热回收结构中的最佳能量回收

    公开(公告)号:US08931275B2

    公开(公告)日:2015-01-13

    申请号:US13357202

    申请日:2012-01-24

    Abstract: A waste heat recovery system that efficiently converts waste heat from an engine coolant and an engine exhaust in a vehicle. The system includes a coolant heat exchanger that receives heat from the engine coolant, an exhaust heat exchanger that receives heat from the engine exhaust and an economizer heat exchanger. A plurality of valves control the flow of the fluid in different modes as determined by a power ratio between the heat provided by the exhaust heat exchanger and the heat provided by the coolant heat exchanger, including an economizer heat exchanger after coolant heat exchanger mode at low power ratios, where the fluid from the pump flows to the economizer heat exchanger after the coolant heat exchanger and an economizer heat exchanger before coolant heat exchanger mode at high power ratios, where the fluid from the pump flows to the economizer heat exchanger before the coolant heat exchanger.

    Abstract translation: 一种废热回收系统,其有效地将来自发动机冷却剂和车辆中的发动机排气的废热转化。 该系统包括从发动机冷却剂接收热量的冷却剂热交换器,从发动机排气口接收热量的排气热交换器和节能器热交换器。 多个阀门以不同的模式控制流体的流动,其由排气热交换器提供的热量与由冷却剂热交换器提供的热量之间的功率比确定,包括在低温冷却剂换热器模式之后的节能热交换器 功率比,在来自泵的流体在高功率比下的冷却剂热交换器模式之前,来自泵的流体在冷却剂热交换器和节能器热交换器之后流到节能器热交换器,其中来自泵的流体在冷却剂之前流到节能器热交换器 热交换器。

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