Internal combustion engine control method
    34.
    发明申请
    Internal combustion engine control method 有权
    内燃机控制方法

    公开(公告)号:US20050087169A1

    公开(公告)日:2005-04-28

    申请号:US10920252

    申请日:2004-08-18

    摘要: Satisfactory restartability has not been obtained so far because the timing of opening an exhaust valve of a cylinder under expansion stroke is adjusted for improvement of startability and a valve adjusting mechanism is always controlled in the same manner regardless of the engine status at start. In the invention, control is performed to adjust the timing of closing an intake valve so that an effective compression ratio of a cylinder under compression stroke reduces. Also, the effective compression ratio of the compression stroke cylinder is decided based on a piston position at engine restart. By varying the intake valve closing timing in the expansion stroke cylinder to reduce the effective compression ratio depending on the engine status at restart, it is possible to lessen a load imposed on a starter when the engine is restarted, and to improve startability without complicating the engine system.

    摘要翻译: 到目前为止还没有获得令人满意的可再生能力,因为调节了在膨胀冲程下的气缸排气阀的打开时间,以提高起动性,并且始终以相同的方式控制阀调节机构,而与起动时的发动机状态无关。 在本发明中,进行控制以调节关闭进气门的时间,使得压缩行程下的气缸的有效压缩比降低。 此外,基于发动机重起动时的活塞位置来决定压缩冲程缸的有效压缩比。 通过改变膨胀冲程气缸中的进气门关闭正时,根据重启时的发动机状态降低有效压缩比,可以减少发动机起动时对起动机施加的负荷,并且提高起动性,而不会使 发动机系统。

    Fuel supply system and method of direct fuel injection engine
    35.
    发明授权
    Fuel supply system and method of direct fuel injection engine 有权
    直燃式发动机燃油供应系统及方法

    公开(公告)号:US07066126B2

    公开(公告)日:2006-06-27

    申请号:US10827439

    申请日:2004-04-20

    IPC分类号: F02N17/00

    摘要: To perform fuel injection under fuel pressure as high as needed in an operation range of from cranking to self-sustaining operation via full expansion.A fuel supply fuel system for a direct fuel injection type internal combustion engine is provided with a high-pressure fuel pump to directly inject fuel, which has been pressurized by the high-pressure fuel pump, from injectors into combustion chambers of the engine. An electromotor is arranged to auxilially drive the high-pressure fuel pump At the time of a start-up of the engine, driving of the high-pressure fuel pump or an assist to drive torque for the high-pressure fuel pump is performed by the auxiliary power means.

    摘要翻译: 在通过充分膨胀从起动到自持运行的操作范围内根据需要在燃料压力下执行燃料喷射。 用于直接燃料喷射型内燃机的燃料供给燃料系统设置有高压燃料泵,以将已经被高压燃料泵加压的燃料从喷射器直接喷射到发动机的燃烧室。 电动机被配置为对高压燃料泵进行辅助驱动。在发动机启动时,高压燃料泵的驱动或用于驱动高压燃料泵的转矩的辅助是由 辅助动力手段。

    Internal combustion engine control method
    36.
    发明授权
    Internal combustion engine control method 有权
    内燃机控制方法

    公开(公告)号:US07258099B2

    公开(公告)日:2007-08-21

    申请号:US10920252

    申请日:2004-08-18

    IPC分类号: F02D43/00

    摘要: Satisfactory restartability has not been obtained so far because the timing of opening an exhaust valve of a cylinder under expansion stroke is adjusted for improvement of startability and a valve adjusting mechanism is always controlled in the same manner regardless of the engine status at start. In the invention, control is performed to adjust the timing of closing an intake valve so that an effective compression ratio of a cylinder under compression stroke reduces. Also, the effective compression ratio of the compression stroke cylinder is decided based on a piston position at engine restart. By varying the intake valve closing timing in the expansion stroke cylinder to reduce the effective compression ratio depending on the engine status at restart, it is possible to lessen a load imposed on a starter when the engine is restarted, and to improve startability without complicating the engine system.

    摘要翻译: 到目前为止还没有获得令人满意的可再生能力,因为调节了在膨胀冲程下的气缸排气阀的打开时间,以提高起动性,并且始终以相同的方式控制阀调节机构,而与起动时的发动机状态无关。 在本发明中,进行控制以调节关闭进气门的时间,使得压缩行程下的气缸的有效压缩比降低。 此外,基于发动机重起动时的活塞位置来决定压缩冲程缸的有效压缩比。 通过改变膨胀冲程气缸中的进气门关闭正时,根据重启时的发动机状态来降低有效的压缩比,可以减少发动机重新启动时对起动器施加的负荷,并且提高启动性而不会使 发动机系统。

    Control device for engine
    38.
    发明授权
    Control device for engine 有权
    发动机控制装置

    公开(公告)号:US08290685B2

    公开(公告)日:2012-10-16

    申请号:US12920558

    申请日:2009-07-24

    IPC分类号: F02D41/00 F01N3/00

    摘要: A control device for an engine, capable of accurately estimating the quantity of exhaust heat from the engine and performing engine control which improves the exhaust quality and fuel consumption of the engine in various operating conditions thereof, by using the accurate estimated value of the quantity of exhaust heat. A control device for an engine is provided with an exhaust flow rate sensor for directly sensing the flow rate of exhaust gas discharged from the engine, an exhaust temperature estimating device for sensing or estimating the temperature of the exhaust gas discharged from the engine, and an exhaust heat quantity estimating device for estimating, based on an output of the exhaust flow rate sensor and an output of the exhaust temperature estimating device, the quantity of heat of the exhaust gas discharged from the engine.

    摘要翻译: 一种用于发动机的控制装置,其能够精确地估计来自发动机的排气量并执行发动机控制,其通过使用发动机的各种操作条件的精确估计值来提高发动机的各种运行条件下的排气质量和燃料消耗 排气热。 一种用于发动机的控制装置设置有用于直接感测从发动机排出的废气的流量的排气流量传感器,用于感测或估计从发动机排出的废气的温度的排气温度估计装置,以及 排气热量估计装置,用于基于排气流量传感器的输出和排气温度推定装置的输出,估计从发动机排出的废气的热量。

    Exhaust gas recirculation system
    39.
    发明授权
    Exhaust gas recirculation system 失效
    废气再循环系统

    公开(公告)号:US07681560B2

    公开(公告)日:2010-03-23

    申请号:US11943047

    申请日:2007-11-20

    IPC分类号: F02M25/07 F02D21/08

    摘要: The present invention prevents an EGR sensor installed in an engine's EGR path from being soiled by soiling substances in exhaust. A catalyst is positioned upstream of the EGR sensor to purify the soiling substances in EGR gas. The status of the EGR sensor is properly controlled in accordance with the conditions of the catalyst. This ensures the EGR sensor is less likely to be affected by the soiling substances in the exhaust under any circumstances of the EGR path and allows the EGR sensor to avoid a decrease in the accuracy of EGR gas detection. An alternative configuration may be employed such that the EGR gas recirculates from the downstream side of a catalyst installed in a main exhaust path.

    摘要翻译: 本发明防止了安装在发动机EGR通路中的EGR传感器被污染排气中的物质所污染。 催化剂位于EGR传感器的上游,以净化EGR气体中的污物。 根据催化剂的条件适当地控制EGR传感器的状态。 这确保EGR传感器在EGR路径的任何情况下不太可能受到排气中的污染物质的影响,并且允许EGR传感器避免EGR气体检测的精度的降低。 可以采用替代配置,使得EGR气体从安装在主排气路径中的催化剂的下游侧再循环。

    Thermal type gas flowmeter
    40.
    发明授权
    Thermal type gas flowmeter 失效
    热式气体流量计

    公开(公告)号:US07552633B2

    公开(公告)日:2009-06-30

    申请号:US11829443

    申请日:2007-07-27

    IPC分类号: G01F1/68

    摘要: A thermal type gas flowmeter comprising a sensor element which, in turn, comprises at least one first heating resistor, two or more resistors in fluid and a second heating resistor which is disposed between the first heating resistor and a housing supporting the sensor element. The first and second heating resistors are electrically independent from each other. A temperature sensing unit is provided between the first and second heating resistors. A temperature of the first or second heating resistor is controlled by a temperature sensed by the temperature sensing unit.

    摘要翻译: 一种热式气体流量计,其包括传感器元件,传感器元件又包括至少一个第一加热电阻器,流体中的两个或更多个电阻器和设置在第一加热电阻器和支撑传感器元件的壳体之间的第二加热电阻器。 第一和第二加热电阻器彼此电独立。 温度检测单元设置在第一和第二加热电阻之间。 第一或第二加热电阻器的温度由温度检测单元感测的温度控制。