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1. 发明授权

US5669362A Diagnostic device for an evaporative emission control system 失效
标题翻译：用于蒸发排放控制系统的诊断装置
公开(公告)号：US5669362A
公开(公告)日：1997-09-23
申请号：US617252
申请日：1996-03-18
申请人： Susumu Shinohara , Shinsuke Kiyomiya
发明人： Susumu Shinohara , Shinsuke Kiyomiya
IPC分类号： F02M25/08 , F02M37/04
CPC分类号： F02M25/0809
摘要： In an evaporative emission control system, a canister adsorbs fuel vapor sent from a fuel tank of an engine. The canister is connected to an intake air passage through a purge gas passage and a purge control valve. A control circuit employs a pressure sensor to detect the pressure of the canister when the purge control valve is closed and when the pressure of the canister is stabilized. The control circuit carries out a failure diagnosis based on this pressure. Namely, when the pressure of the canister after it is stabilized deviates from the atmospheric pressure by more than a predetermined reference value, the control circuit determines that the canister has failed, i.e., the canister has a leak. Since the diagnosis can be carried out before starting the engine, the diagnosis can be correctly carried out without affecting the operation of the engine.
摘要翻译：在蒸发排放控制系统中，罐吸附从发动机的燃料箱发送的燃料蒸气。罐通过净化气体通道和净化控制阀连接到进气通道。控制电路使用压力传感器来检测当清洗控制阀关闭时以及当罐的压力稳定时罐的压力。控制电路基于该压力进行故障诊断。也就是说，当其后的罐的压力稳定后，大气压超过预定的基准值时，控制电路确定罐已经失效，即罐发生泄漏。由于可以在起动发动机之前进行诊断，所以能够正确地进行诊断，而不影响发动机的运转。

2. 发明授权

US5590634A Evaporative emission control system for an internal combustion engine 失效
标题翻译：内燃机蒸发排放控制系统
公开(公告)号：US5590634A
公开(公告)日：1997-01-07
申请号：US605485
申请日：1996-02-26
申请人： Susumu Shinohara
发明人： Susumu Shinohara
IPC分类号： F02B77/08 , F02M25/08 , F02M37/00 , F02M39/04
CPC分类号： F02M25/0809
摘要： The evaporative emission control system in the present invention is equipped with a fuel tank and a canister connected to the fuel tank, and a pressure sensor connected to the canister and the fuel tank via a three-way switching valve. The pressure sensor can be selectively connected to the canister and the fuel tank by switching the position of the three-way switching valve. The control circuit, which may consist of a known type of microcomputer, detects failures in the system based on the smoothed pressure values of the canister and the fuel tank. The smoothed pressure value is obtained by smoothing fluctuations of the pressure detected by the pressure sensor. Since the characteristics of the fluctuations of the pressure in the canister and the fluctuations of the pressure in the fuel tank are different, the control circuit changes the degree of smoothing fluctuation when obtaining the smoothed pressure value of the canister and when obtaining the smoothed pressure value of the fuel tank.
摘要翻译：本发明的蒸发排放控制系统配备有连接到燃料箱的燃料箱和罐，以及通过三通切换阀连接到罐和燃料箱的压力传感器。压力传感器可以通过切换三通切换阀的位置来选择性地连接到罐和燃料箱。可以由已知类型的微型计算机组成的控制电路基于平坦化的罐和燃料箱的压力值来检测系统中的故障。通过平滑压力传感器检测到的压力的波动来获得平滑的压力值。由于罐内的压力波动特性和燃料箱的压力波动不同，所以控制电路在获得罐的平滑的压力值时，当获得平滑的压力值时，会改变平滑波动的程度的燃油箱。

3. 发明授权

US5951617A Apparatus and method for detecting misfires in internal combustion engine 失效
标题翻译：用于检测内燃机火灾的装置和方法
公开(公告)号：US5951617A
公开(公告)日：1999-09-14
申请号：US908966
申请日：1997-08-08
申请人： Susumu Shinohara , Tomohiro Fujita
发明人： Susumu Shinohara , Tomohiro Fujita
IPC分类号： G01M15/04 , F02D45/00 , G01M15/11 , G01M15/00
CPC分类号： G01M15/11
摘要： An apparatus for detecting misfires in an internal combustion engine that is mounted on a vehicle. A plurality of cylinders is defined in the engine, and a piston accommodated in each cylinder to reciprocate in the cylinder. A crankshaft is connected with the piston, the crankshaft is rotated by the reciprocal movement of the piston. An engine speed sensor is provided for detecting the rotating speed of the crankshaft. An electronic control unit (ECU) computes the deviation of rotating speed of the crankshaft corresponding to each cylinder based on the detected engine speed, and the deviation is proportional to the engine load. The ECU costs a leaning value based on the computed deviation, wherein the learning value is used for detecting the misfires in the engine. A memory is provided for storing the learning value. Several sensors are provided for detecting a running condition of the engine, wherein the condition is included the engine load. The ECU renews the learning value stored in the memory based on the detected condition of the engine. The ECU determines whether the misfires occurs in each cylinder based on the difference between the deviation and the learning value. The ECU renews the learning value when the engine load is less than a predetermined value.
摘要翻译：一种用于检测安装在车辆上的内燃机中的火灾的装置。在发动机中限定多个气缸，并且容纳在每个气缸中的活塞在气缸中往复运动。曲轴与活塞连接，曲轴通过活塞的往复运动而旋转。提供用于检测曲轴的转速的发动机转速传感器。电子控制单元（ECU）基于检测到的发动机转速来计算与各气缸对应的曲轴的转速偏差，偏差与发动机负荷成比例。 ECU根据计算出的偏差来计算倾斜值，其中学习值用于检测发动机的失火。提供存储学习值的存储器。提供了几个用于检测发动机的运行状态的传感器，其中所述条件包括发动机负载。 ECU根据检测到的发动机状态更新存储在存储器中的学习值。 ECU根据偏差和学习值之间的差异，确定每个气缸中发生的失火是否发生。当发动机负载小于预定值时，ECU更新学习值。

4. 发明授权

US5857447A Testing apparatus for fuel vapor treating device 失效
标题翻译：燃油蒸汽处理装置试验装置
公开(公告)号：US5857447A
公开(公告)日：1999-01-12
申请号：US893270
申请日：1997-07-15
申请人： Susumu Shinohara
发明人： Susumu Shinohara
IPC分类号： F02M25/08 , F02M33/04
CPC分类号： F02M25/0809
摘要： An apparatus for testing seal of a fuel vapor treating device that collects fuel vapor generated in a fuel tank and treats the vapor without releasing it into the atmosphere. The treating device is provided with a canister that collects the fuel vapor through a vapor line. A vapor control valve connected to the canister adjusts the flow of fuel vapor directed toward the canister from the tank. A pressure sensor is provide to detect the pressure in the tank. An electronic control unit (ECU) controls the purge control valve and the three-way valve. The ECU counts the number of deviations of the detected pressure when the detected pressure is within a predetermined range. The ECU determines whether the seal is normal or malfunctioning based on the detected pressure when the counted value is smaller than a predetermined value.
摘要翻译：一种用于测试燃料蒸汽处理装置的密封的装置，其收集在燃料箱中产生的燃料蒸汽并处理蒸气而不将其释放到大气中。处理装置设置有通过蒸汽管线收集燃料蒸气的罐。连接到罐的蒸汽控制阀调节从罐引导到罐的燃料蒸汽的流动。提供压力传感器来检测油箱中的压力。电子控制单元（ECU）控制清洗控制阀和三通阀。当检测到的压力在预定范围内时，ECU对检测到的压力的偏差数进行计数。当计数值小于预定值时，ECU基于检测到的压力来确定密封是正常还是故障。

5. 发明授权

US5679890A Fault diagnostic apparatus for evaporated fuel purging system 失效
标题翻译：蒸发式燃油净化系统故障诊断装置
公开(公告)号：US5679890A
公开(公告)日：1997-10-21
申请号：US624009
申请日：1996-03-27
申请人： Susumu Shinohara , Katsuhiko Teraoka
发明人： Susumu Shinohara , Katsuhiko Teraoka
IPC分类号： G01M15/04 , F02B77/08 , F02D41/02 , F02D45/00 , F02M25/08 , F02M37/00 , G01M15/00
CPC分类号： F02M25/0809
摘要： The fault diagnostic apparatus of the present invention detects a failure (a leak) of a fuel tank of an engine. In this invention, space above the fuel level in the fuel tank is connected to a canister. The canister contains an adsorbent to adsorb evaporated fuel in the tank to prevent the evaporated fuel from being released to the atmosphere. Valves are provided to the canister to keep the internal pressure of the canister within a predetermined range. A control circuit of the engine employs a pressure sensor to monitor the internal pressure of the fuel tank, and determines whether the fuel tank has failed in accordance with a change in the internal pressure of the fuel tank. Since the change in the fuel level in the fuel tank varies in accordance with the fuel consumption rate, the change in the pressure in the fuel tank also varies in accordance with the fuel consumption rate. Therefore, the control circuit stops the determining operation when the fuel consumption rate of the engine is too large or too small, to avoid an error in the diagnosis of the fuel tank.
摘要翻译：本发明的故障诊断装置检测发动机的燃料箱的故障（泄漏）。在本发明中，燃料箱中的燃料高度以上的空间与罐连接。容器中含有吸附剂以吸收罐中蒸发的燃料，以防止蒸发的燃料被释放到大气中。将阀提供给罐以将罐的内部压力保持在预定范围内。发动机的控制电路采用压力传感器来监视燃料箱的内部压力，并且根据燃料箱的内部压力的变化来确定燃料箱是否发生故障。由于燃料箱中的燃料液位的变化根据燃料消耗率而变化，所以燃料箱的压力变化也根据燃料消耗率而变化。因此，当发动机的燃料消耗率太大或太小时，控制电路停止确定操作，以避免燃料箱的诊断错误。

6. 发明授权

US5718210A Testing apparatus for fuel vapor treating device 失效
标题翻译：燃油蒸汽处理装置试验装置
公开(公告)号：US5718210A
公开(公告)日：1998-02-17
申请号：US688447
申请日：1996-07-30
申请人： Tokiji Ito , Susumu Shinohara
发明人： Tokiji Ito , Susumu Shinohara
IPC分类号： F02M25/08 , F02M37/04
CPC分类号： F02M25/0809
摘要： A fuel vapor treating device that collects fuel vapor produced in a fuel tank and treats the vapor without releasing it into the atmosphere. The treating device is provided with a canister that collects the fuel vapor through a vapor line. A vapor control valve provided in the canister adjusts the flow of fuel vapor directed toward the canister from the tank. A purge line connects the canister to an air intake passage of an engine. The fuel collected in the canister is purged into the air intake passage through the purge line. A purge control valve provided in the purge line adjusts the flow rate of the fuel flowing through the purge line. A three-way valve selectively switches the section which the pressure sensor is connected to between the tank side and the canister side. An electronic control unit (ECU) controls the purge control valve and the three-way valve. The ECU performs testing of the sealing of the tank side and the canister side based on the tank pressure and the canister pressure which are detected by the pressure sensor. The ECU controls the three-way valve to selectively detect the pressure in the canister side before the engine is started and selectively detect the pressure in the tank side immediately after the engine is started. The ECU determines that the three-way valve is functioning normally when the difference between the detected pressures is equal to or greater than a predetermined value.
摘要翻译：一种燃料蒸汽处理装置，其收集在燃料箱中产生的燃料蒸汽并处理蒸汽而不将其释放到大气中。处理装置设置有通过蒸汽管线收集燃料蒸气的罐。设置在罐中的蒸汽控制阀调节从罐引导朝向罐的燃料蒸汽的流动。吹扫线将罐连接到发动机的进气通道。收集在罐中的燃料通过净化管线被净化到进气通道中。设置在净化管线中的清洗控制阀调节流过净化管线的燃料的流量。三通阀选择性地切换压力传感器连接在罐侧和罐侧之间的部分。电子控制单元（ECU）控制清洗控制阀和三通阀。基于由压力传感器检测到的罐压力和罐压力，ECU执行罐侧和罐侧的密封测试。 ECU在启动发动机之前控制三通阀以选择性地检测罐侧的压力，并且在发动机起动之后立即选择性地检测油箱侧的压力。当检测压力之间的差值等于或大于预定值时，ECU确定三通阀正常工作。

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