Valve operation verification system for verifying valve operation of
valve disposed in hot gas flow passage
    2.
    发明授权
    Valve operation verification system for verifying valve operation of valve disposed in hot gas flow passage 失效
    阀门操作验证系统,用于验证热气流通道中阀门的阀门操作

    公开(公告)号:US6035835A

    公开(公告)日:2000-03-14

    申请号:US980442

    申请日:1997-11-28

    IPC分类号: F02M25/07

    摘要: A valve operation verifying system for making verification of valve operation of an EGR valve of a type having a diaphragm elastically deformable according to operating conditions of an engine to admit controlled amounts of exhaust gas that is recirculated into an intake air stream which verifies, on a basis of gas pressure in an EGR passage, whether the diaphragm remains elastically deformable as specified and whether a pressure sensor remains free from freezing, and executes the verification of valve operation of the EGR valve on a basis of a change in the gas pressure in the EGR passage when the EGR valve opens and when it closes, and when the temperature of ambient air is lower than a critical point, verifying that the diaphragm remains elastically deformable as specified and that said pressure sensor is free from freezing.

    摘要翻译: 一种阀操作验证系统,用于验证具有根据发动机的操作条件可弹性变形的隔膜的类型的EGR阀的阀操作,以允许再循环到进气流中的受控量的废气,所述排气在 基于EGR通路中的气体压力,隔膜是否按规定保持弹性变形,以及压力传感器是否保持冷冻,并且基于气体压力的变化来执行EGR阀的阀操作的验证 当EGR阀打开时和当其关闭时,当环境空气的温度低于临界点时,确认隔膜保持弹性变形,并且所述压力传感器没有冻结。

    Diagnostic system for detecting leakage of fuel vapor from purge system
    3.
    发明授权
    Diagnostic system for detecting leakage of fuel vapor from purge system 失效
    用于检测吹扫系统中燃料蒸气泄漏的诊断系统

    公开(公告)号:US5996400A

    公开(公告)日:1999-12-07

    申请号:US829692

    申请日:1997-03-31

    IPC分类号: F02M25/08 G01M3/08

    CPC分类号: F02M25/0809

    摘要: A leakage diagnostic system for making a judgement of leakage of a fuel purge system, which has in order from the side of a fuel tank a control valve, a canister and a purge valve disposed in a purge passage and a relief valve isolating the canister from the atmosphere, based on a rising rate of pressure in the purge passage between the fuel tank and the intake system isolated from the atmosphere after lowering and keeping the interior of the purge passage below specified negative pressure level for a specified period of time. When the interior of the fuel tank increases above a threshold level after a specified period of time, the leakage diagnostic system delivers a judgement of leakage of the purge system.

    摘要翻译: 一种泄漏诊断系统,用于判断燃料净化系统的泄漏,燃料净化系统从燃料箱一侧依次排列设置在净化通道中的控制阀,罐和净化阀,以及将罐与罐隔离的安全阀 基于在将清洗通道的内部降低并保持在指定的负压水平一段指定时间之前,从大气隔离的燃料箱和进气系统之间的吹扫通道中的压力升高的速度。 当燃料箱的内部在指定的时间段之后增加到阈值水平以上时,泄漏诊断系统判断净化系统的泄漏。

    Method for detecting abnormality in a hybrid vehicle
    4.
    发明授权
    Method for detecting abnormality in a hybrid vehicle 有权
    用于检测混合动力车辆的异常的方法

    公开(公告)号:US07448459B2

    公开(公告)日:2008-11-11

    申请号:US10315178

    申请日:2002-12-10

    IPC分类号: B60K6/22

    摘要: A method for detecting an abnormality in a hybrid vehicle. The hybrid vehicle includes an engine that can run in a cylinder cut-off state where intake and exhaust valve lifts are made zero, and a motor/generator that functions as both a motor and a generator. The vehicle travels by means of the power of at least one of the engine and the motor/generator and carries out regenerative braking by the motor/generator while running the engine in a cylinder cut-off state during deceleration. When detecting an abnormality in a negative intake pressure sensor or an EGR control valve based on the negative intake pressure of the engine, the engine is prohibited from running in a cylinder cut-off state even during deceleration, thus generating a negative intake pressure and thereby enabling the abnormality detection to be carried out without any problems.

    摘要翻译: 一种用于检测混合动力车辆的异常的方法。 混合动力车辆包括能够以进气和排气阀提升为零的气缸切断状态运行的发动机和用作电动机和发电机的电动机/发电机。 车辆通过发动机和电动机/发电机中的至少一个的动力行驶,并且在减速期间以汽缸切断状态运行发动机时由电动机/发电机进行再生制动。 基于发动机的负吸入压力检测负吸入压力传感器或EGR控制阀的异常时,即使在减速时也禁止发动机在气缸切断状态下运转,从而产生负吸入压力 能够无异常地进行异常检测。

    Exhaust gas purifying apparatus for an internal-combustion engine
    5.
    发明授权
    Exhaust gas purifying apparatus for an internal-combustion engine 失效
    内燃机用废气净化装置

    公开(公告)号:US06698187B2

    公开(公告)日:2004-03-02

    申请号:US10211304

    申请日:2002-08-05

    IPC分类号: F01N300

    摘要: An exhaust gas purifying apparatus for an internal-combustion engine, including a three-way catalyst, nitrogen oxide purifier that is disposed downstream of the three-way catalyst, an upstream oxygen sensor that is disposed between the three-way catalyst and the nitrogen oxide purifier, and a downstream oxygen sensor that is disposed downstream of the nitrogen oxide purifier. An abnormality determination criterion is set in accordance with the exhaust gas amount of the internal-combustion engine wherein the criterion is equivalent to a time period until the output of the downstream oxygen density sensor is read since the output of the upstream oxygen density sensor is changed to rich after the air-fuel ratio of the exhaust gas was over from lean to rich. Any abnormality of the nitrogen oxide purifier is determined when the output of the downstream oxygen density sensor has been changed to rich before the time period represented by the criterion elapses.

    摘要翻译: 一种用于内燃机的排气净化装置,包括设置在三元催化剂下游的三元催化剂,氮氧化物净化器,设置在三元催化剂和氮氧化物之间的上游氧传感器 净化器和设置在氮氧化物净化器下游的下游氧传感器。 根据内燃机的废气量设定异常判定基准,该内燃机的排气量等于直到下游氧浓度传感器的输出从上游氧浓度传感器的输出变化来读取下游氧浓度传感器的输出 在排气的空燃比从瘦到浓之后变得丰富。 在通过标准所表示的时间段之前,当下游氧浓度传感器的输出变为浓度时,确定氮氧化物净化器的任何异常。

    Air-fuel ratio control system for engine
    6.
    发明授权
    Air-fuel ratio control system for engine 失效
    发动机空燃比控制系统

    公开(公告)号:US5685283A

    公开(公告)日:1997-11-11

    申请号:US497330

    申请日:1995-06-30

    IPC分类号: F02D41/14

    CPC分类号: F02D41/1475 F02D41/1456

    摘要: An air-fuel ratio control system for an engine for controlling an amount of a fuel mixture to be delivered into a combustion chamber so that an air-fuel ratio of the fuel mixture attains a target air-fuel ratio performs selecting one of a plurality of predetermined target air-fuel ratios according to engine operating conditions, controlling an amount of a fuel mixture so as to attain a selected target air-fuel ratio, and changing a speed at which the target air-fuel ratio is changed from one to another ratio higher with an increase in deviation of the other target air-fuel ratio from the one target air-fuel ratio.

    摘要翻译: 一种用于控制要输送到燃烧室中的燃料混合物的量使得燃料混合物的空燃比达到目标空燃比的发动机的空燃比控制系统,执行选择多个 根据发动机工作条件确定目标空燃比,控制燃料混合物的量以获得所选择的目标空燃比,以及将目标空燃比从一个比例变化到另一比例的速度 随着另一个目标空燃比与一个目标空燃比的偏差的增加而增加。

    Throttle valve control system for internal combustion engine
    7.
    发明申请
    Throttle valve control system for internal combustion engine 失效
    内燃机节流阀控制系统

    公开(公告)号:US20090112448A1

    公开(公告)日:2009-04-30

    申请号:US12289189

    申请日:2008-10-22

    IPC分类号: F02D9/00

    摘要: A throttle valve control system for an internal combustion engine which controls an opening of a throttle valve of the engine so that the opening coincides with a target opening. A regulation value of a change amount of the throttle valve opening is set according to at least a temperature parameter indicative of a temperature of the engine. The target opening is set within a range defined by the regulation value. An upper limit value and a lower limit value of the regulation value is set according to the temperature parameter, and a transition control is performed wherein the regulation value is set according to an elapsed time period after start of the engine so as to change from the lower limit value to the upper limit value.

    摘要翻译: 一种用于内燃机的节流阀控制系统,其控制发动机的节流阀的开度,使得开度与目标开度重合。 至少根据表示发动机的温度的温度参数来设定节气门开度的变化量的调节值。 目标开度设定在由调节值限定的范围内。 根据温度参数设定调节值的上限值和下限值,并且进行转变控制,其中调节值根据发动机起动后的经过时间设定,从而从 下限值为上限值。

    Thermostat trouble diagnosis system in an engine cooling system
    9.
    发明授权
    Thermostat trouble diagnosis system in an engine cooling system 有权
    发动机冷却系统中的恒温器故障诊断系统

    公开(公告)号:US06321696B1

    公开(公告)日:2001-11-27

    申请号:US09620971

    申请日:2000-07-20

    IPC分类号: F01P514

    摘要: The invention relates to an apparatus for diagnosing thermostat trouble in an engine cooling system comprising a thermostat which works to open a valve to make a cooling water flow through a radiator when the cooling water temperature for an engine becomes more than a predetermined temperature, or to close the valve to make the cooling water bypass a radiator when this temperature becomes less than the predetermined temperature. The apparatus comprises means for calculating a radiation heat amount from a radiator received by the cooling water for the engine and means for determining whether the thermostat trouble has occurred based on the radiation heat amount calculated by the means for calculating the radiation heat amount.

    摘要翻译: 本发明涉及一种用于诊断发动机冷却系统中的恒温器故障的装置,包括恒温器,其工作以在发动机的冷却水温度超过预定温度时打开阀门以使冷却水流过散热器,或者 当该温度低于预定温度时,关闭阀门使冷却水旁路散热器。 该装置包括用于计算由用于发动机的冷却水接收的散热器的辐射热量的装置和基于由计算辐射热量的装置计算的辐射热量来确定是否发生了恒温器故障的装置。

    Operational failure detecting system for hydraulically controlled power
steering system
    10.
    发明授权
    Operational failure detecting system for hydraulically controlled power steering system 失效
    液压控制动力转向系统运行故障检测系统

    公开(公告)号:US6012541A

    公开(公告)日:2000-01-11

    申请号:US980252

    申请日:1997-11-28

    CPC分类号: B62D5/06

    摘要: A failure detection system for detecting an operational failure of a rack and pinion type of hydraulically controlled power steering system which employs a power cylinder to assist the driver in manipulating front wheels of the vehicle by utilizing hydraulic pressure applied to a steering gear connected to the front wheels utilizes a pressure switch for detecting a specified level of oil pressure provided by the power cylinder to be at operational failure when the vehicle speed remains higher than a specified speed for a specified time period, the pressure switch detects the specified level of hydraulic pressure.

    摘要翻译: 一种用于检测齿轮和小齿轮型液压控制的动力转向系统的操作故障的故障检测系统,其采用动力缸来通过利用施加到连接到前部的转向齿轮的液压来辅助驾驶员操纵车辆的前轮 当车速保持高于指定速度达指定时间时,车轮利用压力开关,用于检测由动力缸提供的指定油位的油压,使之处于运行故障,压力开关检测到指定的液压水平。