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

    申请人: John R. Bucknell

    发明人: John R. Bucknell

    摘要: 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.

    摘要翻译: 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。

    VEHICLE WASTE HEAT RECOVERY SYSTEM AND METHOD OF OPERATION
    2.
    发明申请
    VEHICLE WASTE HEAT RECOVERY SYSTEM AND METHOD OF OPERATION 有权
    车辆废热回收系统及其运行方法

    公开(公告)号:US20110220729A1

    公开(公告)日:2011-09-15

    申请号:US12720193

    申请日:2010-03-09

    申请人: John R. BUCKNELL

    发明人: John R. BUCKNELL

    IPC分类号: B60H1/04

    摘要: A vehicle waste heat recovery system may include a first pump, an internal combustion engine, a waste heat recovery device and a condenser. The first pump may be in fluid communication with a fluid. The internal combustion engine may be operable to power rotation of a drive axle of a vehicle and may define an engine coolant passage having an inlet in fluid communication with an outlet of the first pump. The waste heat recovery device may have an inlet in fluid communication with an outlet of the engine coolant passage. The condenser may have an inlet in fluid communication with an outlet of the waste heat recovery device and an outlet in fluid communication with an inlet of the first pump.

    摘要翻译: 车辆废热回收系统可以包括第一泵,内燃机,废热回收装置和冷凝器。 第一泵可以与流体流体连通。 内燃机可以可操作地为车辆的驱动轴的旋转提供动力,并且可以限定具有与第一泵的出口流体连通的入口的发动机冷却剂通道。 废热回收装置可以具有与发动机冷却剂通道的出口流体连通的入口。 冷凝器可以具有与废热回收装置的出口流体连通的入口和与第一泵的入口流体连通的出口。

    POSITION CONTROL OF FLOW CONTROL VALVES NEAR ENDSTOPS
    5.
    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

    摘要: 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.

    摘要翻译: 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
    6.
    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

    IPC分类号: F02M25/07 F02D41/00

    摘要: 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.

    摘要翻译: 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
    7.
    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

    申请人: John R. Bucknell

    发明人: John R. Bucknell

    IPC分类号: B01D50/00

    摘要: 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.

    摘要翻译: 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。

    INTEGRAL PURGE EJECTOR TEE ARRANGEMENT IN A TURBOCOMPRESSOR
    10.
    发明申请
    INTEGRAL PURGE EJECTOR TEE ARRANGEMENT IN A TURBOCOMPRESSOR 有权
    整流式喷射器TEE布置在涡轮增压器中

    公开(公告)号:US20150369184A1

    公开(公告)日:2015-12-24

    申请号:US14742008

    申请日:2015-06-17

    IPC分类号: F02M35/10 F02B33/40 F02M25/08

    摘要: A boost purge ejector tee arrangement is integrated into a turbocompressor associated with an engine and includes first and second passages, an inlet port and a nozzle. The first passage is formed into a housing of the turbocompressor and includes an outlet in communication with a turbocompressor inlet. The second passage is formed into the housing and includes a boost air inlet in communication with an internal outlet area of the turbocompressor and intersecting the first passage. The inlet port is associated with the housing and intersects the first passage. The nozzle is positioned in the first passage such that an outlet of the nozzle is proximate the intersection of the inlet port and first passage. During a boost mode of operation, the second passage is adapted to receive boost air flow, which flows through the nozzle thereby creating a vacuum and drawing purge through the inlet port.

    摘要翻译: 升压吹扫喷嘴三通装置集成到与发动机相关联的涡轮压缩机中,并包括第一和第二通道,入口和喷嘴。 第一通道形成涡轮压缩机的壳体并且包括与涡轮压缩机入口连通的出口。 第二通道形成到壳体中并且包括与涡轮压缩机的内部出口区域连通并与第一通道相交的增压空气入口。 入口与壳体相连,并与第一通道相交。 喷嘴定位在第一通道中,使得喷嘴的出口靠近入口和第一通道的交叉点。 在升压操作模式期间,第二通道适于接收流过喷嘴的增压空气流,从而产生真空并通过入口抽吸吹扫。