Method for detecting failure of injection fuel heaters of internal combustion engine
    2.
    发明授权
    Method for detecting failure of injection fuel heaters of internal combustion engine 失效
    内燃机喷油燃料加热器故障检测方法

    公开(公告)号:US06792929B2

    公开(公告)日:2004-09-21

    申请号:US10050798

    申请日:2002-01-18

    IPC分类号: F02D4100

    摘要: To detect a failure of the fuel heaters of a multi-cylinder internal combustion engine of vehicles by utilizing a microcomputer of a vehicle operation control device and sensors already provided in the vehicle such as an air/fuel ratio sensor or a crankshaft rotation sensor, with a supplement of substantially only a software, a failure of the heater corresponding to one of the cylinders is detected based upon a change exhibited in at least one parameter with regard to the operating conditions of the engine such as exhaust air/fuel ratio, crankshaft rotation angular speed, etc. by the injected fuel not having been heated as expected by a predetermined operation of each heater.

    摘要翻译: 通过利用车辆操作控制装置的微型计算机和已经设置在车辆中的诸如空燃比传感器或曲轴旋转传感器的传感器来检测车辆的多缸内燃机的燃料加热器的故障, 基本上只有软件的补充,基于关于发动机的操作条件的至少一个参数中显示的改变来检测对应于一个气缸的加热器的故障,例如排气/燃料比,曲轴旋转 通过每个加热器的预定操作,未被加热的喷射燃料的角速度等。

    Warm-up control apparatus and warm-up control method for internal combustion engine
    3.
    发明授权
    Warm-up control apparatus and warm-up control method for internal combustion engine 失效
    内燃机预热控制装置及预热控制方法

    公开(公告)号:US06691675B2

    公开(公告)日:2004-02-17

    申请号:US10124372

    申请日:2002-04-18

    IPC分类号: F02P500

    摘要: A warm-up control apparatus of an internal combustion engine is installed in a vehicle equipped with a brake booster that uses a negative pressure in an intake pipe of the internal combustion engine. The apparatus performs a warm-up control of the engine by retarding the ignition timing and increasing the amount of intake air. If during execution of the warm-up control, the brake pedal is operated, or the accelerator is off while the vehicle is running at or above a predetermined speed, or the decreasing rate of the amount of accelerator operation is greater than or equal to a predetermined value while the vehicle is running at or above a predetermined speed, the control apparatus recovers the intake pipe negative pressure by reducing the amount of intake air set in relation to the warm-up control.

    摘要翻译: 内燃机的预热控制装置安装在配备有在内燃机的进气管中使用负压的制动助力器的车辆中。 该装置通过延迟点火正时和增加进气量来执行发动机的预热控制。 如果在执行预热控制期间,当车辆行驶在预定速度或高于预定速度时,制动踏板被操作或加速器关闭,或者加速器操作量的减小速率大于或等于 当车辆以预定速度或高于预定速度行驶时,控制装置通过减少相对于预热控制设定的进气量来恢复进气管负压。

    Control apparatus and method for an internal combustion engine
    4.
    发明授权
    Control apparatus and method for an internal combustion engine 有权
    内燃机的控制装置和方法

    公开(公告)号:US09422882B2

    公开(公告)日:2016-08-23

    申请号:US13821377

    申请日:2010-09-08

    IPC分类号: F02D19/06 F02D41/02

    摘要: The present invention is intended to provide a technique of improving exhaust emissions at the time of starting up of an internal combustion engine, without decreasing the performance of a catalyst at the time of the engine starting up. The present invention is provided with the catalyst that is arranged in an exhaust passage of the internal combustion engine in which a plurality of kinds of fuels are able to be used, and serves to adsorb and remove exhaust gas components discharged from the internal combustion engine, wherein in cases where among the plurality of kinds of fuels, a first fuel is used in which unburnt fuel components thereof are easily adsorbed to the catalyst, at the time when a request is made for stopping the internal combustion engine, said first fuel is changed to a second fuel thereby to operate said internal combustion engine until said internal combustion engine is stopped.

    摘要翻译: 本发明旨在提供一种在内燃机启动时改善废气排放的技术,而不会降低发动机起动时催化剂的性能。 本发明提供了一种催化剂,其配置在能够使用多种燃料的内燃机的排气通路中,并且用于吸附和去除从内燃机排出的排气成分, 其特征在于,在所述多种燃料中,使用其中未燃燃料成分易于吸附到所述催化剂上的第一燃料,在所述内燃机停止要求时,所述第一燃料变化 到第二燃料,从而操作所述内燃机,直到内燃机停止。

    EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气净化装置

    公开(公告)号:US20150167521A1

    公开(公告)日:2015-06-18

    申请号:US14409122

    申请日:2012-06-19

    IPC分类号: F01N3/20 F01N3/22 B01D53/94

    摘要: An exhaust gas purification catalyst is recovered from the sulfur poisoning more appropriately. For this purpose, an exhaust gas purification apparatus for an internal combustion engine selectively executes first control in which an air-fuel ratio of an exhaust gas allowed to flow into an exhaust gas purification catalyst is set to be not more than a theoretical air-fuel ratio to remove a sulfur component from the exhaust gas purification catalyst; and second control in which the air-fuel ratio of the exhaust gas allowed to flow into the exhaust gas purification catalyst is set to an air-fuel ratio that is lower than the air-fuel ratio of the exhaust gas set in the first control to remove the sulfur component from the exhaust gas purification catalyst; wherein the exhaust gas purification apparatus for the internal combustion engine comprises a control unit which executes any one of the first control and the second control on the basis of at least one of purification performance of the exhaust gas purification catalyst, a travel distance of a vehicle that carries the internal combustion engine, and a number of times of removal of the sulfur component from the exhaust gas purification catalyst.

    摘要翻译: 更适当地从硫中毒中回收废气净化催化剂。 为此,内燃机的废气净化装置选择性地执行第一控制,其中允许流入排气净化催化剂的废气的空燃比被设定为不大于理论空燃比 以从废气净化催化剂中除去硫成分; 并且允许流入排气净化催化剂的废气的空燃比被设定为低于设定在第一控制中的排气的空燃比的空燃比的第二控制, 从废气净化催化剂中除去硫成分; 其特征在于,所述内燃机的废气净化装置具有控制单元,其基于所述排气净化催化剂的净化性能,车辆的行驶距离,行驶距离,所述第一控制和所述第二控制中的至少一个, 其承载内燃机,并且从废气净化催化剂中多次除去硫成分。

    EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气净化装置

    公开(公告)号:US20140234174A1

    公开(公告)日:2014-08-21

    申请号:US13574913

    申请日:2011-09-20

    IPC分类号: B01D53/94

    摘要: A reduction in the accuracy of a failure determination of a filter due to a reduction in the detection accuracy of a PM sensor is suppressed. In order to achieve this, provision is made for a filter that is arranged in an exhaust passage of an internal combustion engine for trapping particulate matter contained in an exhaust gas, an NOx selective reduction catalyst that is arranged at the downstream side of the filter and reduces NOx by means of a reducing agent which is supplied thereto, a supply device that supplies the reducing agent to the NOx selective reduction catalyst from the upstream side of the NOx selective reduction catalyst, a PM sensor that detects an amount of the particulate matter in the exhaust gas at the downstream side of the NOx selective reduction catalyst, and a prohibition part that prohibits the use of a detected value of the PM sensor in cases where the reducing agent supplied from said supply device passes through the NOx selective reduction catalyst.

    摘要翻译: 由于PM传感器的检测精度的降低,滤波器的故障判定的精度的降低被抑制。 为了实现这一点,提供了一种布置在用于捕集排气中的颗粒物的内燃机的排气通道中的过滤器,设置在过滤器的下游侧的NOx选择还原催化剂和 通过向其供给的还原剂还原NO x,从NO x选择还原催化剂的上游侧向NO x选择还原催化剂供给还原剂的供给装置,PM传感器,其检测颗粒物质的量 在NOx选择还原催化剂的下游侧的排气以及禁止在从所述供给装置供给的还原剂通过NOx选择还原催化剂的情况下使用PM传感器的检测值的禁止部。

    WARM-UP SYSTEM FOR EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    WARM-UP SYSTEM FOR EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气系统补偿系统

    公开(公告)号:US20140216020A1

    公开(公告)日:2014-08-07

    申请号:US13580325

    申请日:2011-09-06

    IPC分类号: F01N3/10

    摘要: An object of the invention is to prevent a situation in which failure diagnosis for an exhaust system component in an internal combustion engine cannot be completed from continuing for an unduly long period of time. A warm-up system for an exhaust system of an internal combustion engine according to the invention includes a warm-up control performing unit that performs warm-up control for warming up an exhaust system component upon start-up of the internal combustion engine and a failure diagnosis performing unit that performs failure diagnosis for the exhaust system component after the completion of warm-up of the exhaust system component. If a situation in which the operation of the internal combustion engine is stopped after the start of operation of the internal combustion engine before the completion of the failure diagnosis for the exhaust system component performed by the failure diagnosis performing unit has been repeated for a predetermined period of time, the warm-up control performing unit changes the warm-up control performed upon start-up of the internal combustion engine after the predetermined period of time has elapsed to a control that can raise the temperature of the exhaust system component more quickly than the warm-up control performed during the aforementioned predetermined period.

    摘要翻译: 本发明的目的是防止内燃机中的排气系统部件的故障诊断不能够持续不长时间的情况。 根据本发明的用于内燃机的排气系统的预热系统包括预热控制执行单元,其在内燃机启动时进行预热排气系统部件的预热控制,以及 故障诊断执行单元,其在排气系统部件的预热完成之后对排气系统部件执行故障诊断。 如果在由故障诊断执行单元执行的用于排气系统部件的故障诊断完成之后内燃机的运行停止之后的状态已经重复了预定时间段 的时间,预热控制执行单元改变在经过预定时间段之后内燃机启动时执行的预热控制,使其能够比排气系统组件的温度更快地升高 在上述预定期间内进行预热控制。