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公开(公告)号：US5851376A
公开(公告)日：1998-12-22
申请号：US754090
申请日：1996-11-20
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A catalyst degradation determination apparatus having O.sub.2 sensors provided at the upstream and downstream of a catalyst, detects degradation of the catalyst by, during A/F ratio feed-back control since an engine has been started, comparing an integrated value of output values from the upstream O.sub.2 sensor with that of output values from the downstream O.sub.2 sensor. Upon starting integration of the output values from the respective O.sub.2 sensors, change of activated status of the catalyst is judged. If the status of the catalyst is approximately the same as a previous status, the integration is started with previous integrated values. On the other hand, if the status of the catalyst is different from the previous status, the previous integrated values are reset, and the integration of the output values from the respective O.sub.2 sensors is started from the beginning. This prevents erroneous catalyst degradation determination.
摘要翻译： 在催化剂的上游和下游设置有具有O 2传感器的催化剂劣化测定装置，在发动机启动后的A / F比反馈控制期间，检测催化剂的劣化，比较来自 上游O2传感器与下游O2传感器的输出值。 在开始积分来自相应O2传感器的输出值时，判断催化剂的活化状态的变化。 如果催化剂的状态与以前的状态大致相同，则以先前的积分值开始积分。 另一方面，如果催化剂的状态与先前的状态不同，则先前的积分值被重置，并且从一开始就开始来自各个O2传感器的输出值的积分。 这可以防止错误的催化剂劣化测定。
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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
CPC分类号： F01P11/16 , F01P2031/00 , F01P2031/32
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。
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公开(公告)号：US5685283A
公开(公告)日：1997-11-11
申请号：US497330
申请日：1995-06-30
申请人： Futoshi Nishioka , Tetsushi Hosokai
发明人： Futoshi Nishioka , Tetsushi Hosokai
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。
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公开(公告)号：US5553595A
公开(公告)日：1996-09-10
申请号：US413703
申请日：1995-03-30
申请人： Futoshi Nishioka , Tetsushi Hosokai , Kazuo Tanaka
发明人： Futoshi Nishioka , Tetsushi Hosokai , Kazuo Tanaka
CPC分类号： F02D41/0045 , F02B1/04 , F02D41/0042
摘要： A fuel system for feedback controlling an air-to-fuel ratio to maintain an ideally combustible air-fuel mixture includes an evaporation control device, which stores fuel vapors from a fuel tank and purges the fuel vapors stored therein into an intake system, and a fuel vapor evaluation system, which calculates an average of the feedback control parameters, estimates an amount of the fuel vapors stored in the evaporation control means based on the average feedback control parameter, calculates an amount of the fuel vapors replenished into the intake system based on the estimated amount of fuel vapors, and calculates a difference between an amount of fuel necessary for an ideally combustible air-fuel mixture and the replenished amount of fuel vapors. Fuel in an amount equal to the difference is delivered into the intake system.
摘要翻译： 用于反馈控制空燃比以维持理想可燃空气燃料混合物的燃料系统包括蒸发控制装置，其将来自燃料箱的燃料蒸气储存并将其中储存的燃料蒸气吹扫进入系统，以及 计算反馈控制参数的平均值的燃料蒸气评估系统基于平均反馈控制参数估计存储在蒸发控制装置中的燃料蒸汽的量，基于平均反馈控制参数计算补充到进气系统中的燃料蒸汽量 燃料蒸汽的估计量，并且计算理想的可燃空气燃料混合物所需的燃料量与补充的燃料蒸气量之间的差。 相当于差值的燃料被送入进气系统。
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公开(公告)号：US5765372A
公开(公告)日：1998-06-16
申请号：US523675
申请日：1995-09-05
申请人： Noriaki Mitobe , Isao Shimizu , Kunitomo Minamitani , Yasuyoshi Hori , Futoshi Nishioka , Tetsushi Hosokai , Kenji Oka , Hideshi Terao , Misao Fujimoto , Masaki Harada
发明人： Noriaki Mitobe , Isao Shimizu , Kunitomo Minamitani , Yasuyoshi Hori , Futoshi Nishioka , Tetsushi Hosokai , Kenji Oka , Hideshi Terao , Misao Fujimoto , Masaki Harada
IPC分类号： F02B27/02 , B01D53/86 , B01D53/94 , F02B1/04 , F02B23/08 , F02B27/00 , F02B31/02 , F02B31/08 , F02D41/00 , F02D41/04 , F02D41/14 , F02D41/34 , F02D43/00 , F02D45/00 , F02F1/24 , F02F1/42 , F02M25/08 , F02M35/104 , F02M69/00 , F01N3/28
CPC分类号： F02F1/4214 , F02B27/008 , F02B31/085 , F02D41/0002 , F02D41/003 , F02D41/1475 , F02D41/34 , F02F1/242 , F02M25/08 , F02B1/04 , F02B2023/085 , F02B2275/18 , F02B2275/48 , F02F2001/245 , Y02T10/125 , Y02T10/146 , Y02T10/42 , Y02T10/44
摘要： A lean burn engine adapted to establish a specified air-fuel ratio leaner by predetermined rate than a stoichiometric air-fuel ratio in a range of low engine speeds and low engine loads is provided with an air intake system of a low speed type which provides a high charging efficiency in a range of low engine speeds and an exhaust system capable of eliminating a nitrogen oxide emission in the exhaust even during lean burning.
摘要翻译： 在低发动机速度和低发动机负荷的范围内，适于建立比理论空燃比预定速率更精细的指定空燃比的稀燃燃烧发动机设置有低速型的进气系统，其提供 在低发动机速度的范围内的高充电效率以及即使在稀燃期间也能够消除排气中的氮氧化物排放的排气系统。
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公开(公告)号：US5634445A
公开(公告)日：1997-06-03
申请号：US499994
申请日：1995-07-10
IPC分类号： F02D45/00 , F02B17/00 , F02B31/08 , F02D41/02 , F02D41/14 , F02D41/22 , F02D41/30 , F02D41/34 , F02B31/00
CPC分类号： F02D41/009 , F02D41/1475 , F02D41/222 , F02D41/3076 , F02B17/00 , F02B31/085 , F02D2041/0015 , F02D41/1456 , F02D41/3029
摘要： An air-fuel control system for a lean burn engine which carries out lean burning under specific engine operating conditions causes the engine to burn at an stoichiometric air-fuel ratio regardless of engine operating conditions upon an occurrence of malfunctions of a stratifying device and/or a fuel injection timing control device, so as thereby to enable the engine always to operate in good conditions.
摘要翻译： 用于在特定发动机操作条件下进行稀燃的稀燃燃烧发动机的空燃控制系统使发动机在发生分层装置故障和/或发动机的情况下，以理论空燃比燃烧，而与发动机工作条件无关 燃料喷射正时控制装置，从而能够使发动机始终在良好的状态下运行。
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公开(公告)号：US5471963A
公开(公告)日：1995-12-05
申请号：US187031
申请日：1994-01-27
摘要： A fuel injection control system for an engine includes fuel injection valves, each of which injects fuel to one cylinder a plurality of times during each cycle. The system has an arithmetic device for calculating a required fuel injection amount based on driving conditions and a trailing side injection capability of a trailing side injection time point, a determination device for comparing the required fuel injection amount with the trailing side injection capability and determining which is greater, and a fuel injection controller for setting a leading side injection time point and a trailing side injection time point and setting a leading side injection amount and a trailing side injection amount. The fuel injection controller carries out a fuel injection only at the trailing side injection time point when the required fuel injection amount is not greater than the trailing side injection capability and divides the fuel injection between a fuel injection at the leading side injection time point and a fuel injection at the trailing side injection time point when the required fuel injection amount is greater than the trailing side injection capability.
摘要翻译： 用于发动机的燃料喷射控制系统包括燃料喷射阀，每个燃料喷射阀在每个循环期间将燃料喷射到一个气缸多次。 该系统具有运算装置，用于基于驾驶条件和后侧喷射时间点的后侧喷射能力来计算所需燃料喷射量，确定装置，用于将所需燃料喷射量与后侧喷射能力进行比较，并确定哪个 以及燃料喷射控制器，用于设定前方喷射时间点和后侧喷射时间点，并设定前方喷射量和后方喷射量。 燃料喷射控制器仅在所需燃料喷射量不大于后侧喷射能力的后侧喷射时间点执行燃料喷射，并且在前侧喷射时间点的燃料喷射和 当所需燃料喷射量大于后侧喷射能力时，在后侧喷射时间点的燃料喷射。
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8.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
申请人： Shingo Shigihama , Tetsushi Hosokai , Tamotsu Kamakura , Katsuhiko Sakamoto , Futoshi Nishioka , Masanobu Kotoku , Kazuhiro Shinmoto
发明人： Shingo Shigihama , Tetsushi Hosokai , Tamotsu Kamakura , Katsuhiko Sakamoto , Futoshi Nishioka , Masanobu Kotoku , Kazuhiro Shinmoto
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。
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9.发明授权
公开(公告)号：US5996400A
公开(公告)日：1999-12-07
申请号：US829692
申请日：1997-03-31
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。
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公开(公告)号：US5684454A
公开(公告)日：1997-11-04
申请号：US579178
申请日：1995-12-27
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。
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