Valve operation verification system for verifying valve operation of
valve disposed in hot gas flow passage
    21.
    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
    22.
    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。

    Anti-vehicle-thief apparatus
    23.
    发明授权
    Anti-vehicle-thief apparatus 失效
    防盗贼装置

    公开(公告)号:US5684454A

    公开(公告)日:1997-11-04

    申请号:US579178

    申请日:1995-12-27

    IPC分类号: B60R25/04 B60R25/10

    CPC分类号: B60R25/04

    摘要: An anti-vehicle-thief apparatus having an immobilizer unit for comparing a specific first code received from a transponder to a stored code just after an engine is started, and when these codes are identical, outputting a second code to an EGI unit, the EGI unit for comparing the second code to a stored code, and when these codes are identical, permitting the engine to continue operation, a CPU for counting the number of times that an ignition switch power supply is turned ON and OFF during a code comparison time period, and backup RAM capable of storing the counted number of times that the ignition switch power supply is turned ON and OFF for a predetermined time period. When the ignition switch power supply is turned ON and OFF repeatedly more than a predetermined number of times, the EGI unit causes the engine to stop.

    摘要翻译: 一种具有防盗单元的防盗装置,具有用于将从应答器接收的特定第一代码与发动机起动后的存储代码进行比较的防盗单元,当这些代码相同时,向EGI单元输出第二代码,EGI 用于将第二代码与存储代码进行比较的单元,并且当这些代码相同时,允许引擎继续操作; CPU,用于在代码比较时间段期间对点火开关电源的接通和断开次数进行计数的CPU 以及能够存储点火开关电源在预定时间段内接通和断开的计数次数的备用RAM。 当点火开关电源反复打开和关闭超过预定次数时,EGI单元使发动机停止。