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1.发明授权
公开(公告)号：US5010862A
公开(公告)日：1991-04-30
申请号：US482527
申请日：1990-02-21
CPC分类号： F02D43/00 , F02D41/0002 , F02B1/04 , Y02T10/42
摘要： Disclosed is a method for controlling the quantity of intake air supplied to an internal combustion engine, in which the position of a valve member of a flow control valve having a non-linear valve opening characteristic is converted into an intake air quantity or a virtual valve position proportional to the intake air quantity so as to linearize the non-linear valve opening characteristic of the flow control valve. Application of the method of the present invention to an idle speed control device in an engine equipped with an electronic controlled fuel injection system is advantageous in that the quantity of intake air supplied to the engine can be accurately controlled under various operating conditions of the engine, therely preventing rotation of the engine at an excessively high speed and stalling of the engine, improving the fuel consumption and reducing noise generated from the engine.
摘要翻译： 公开了一种用于控制供给到内燃机的进气量的方法，其中具有非线性阀开启特性的流量控制阀的阀构件的位置被转换为进气量或虚拟阀 与进气量成比例的位置，以使流量控制阀的非线性阀开启特性线性化。 将本发明的方法应用到配备有电子控制燃料喷射系统的发动机的怠速控制装置中的优点在于，可以在发动机的各种操作条件下精确地控制供给发动机的进气量， 有效地防止发动机以过高的速度旋转并使发动机停转，从而改善燃料消耗并降低发动机产生的噪音。
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公开(公告)号：US4834054A
公开(公告)日：1989-05-30
申请号：US177963
申请日：1988-04-05
申请人： Toru Hashimoto , Akira Takahashi , Takeshi Imaizumi , Susumu Saito , Hiroshi Tanaka , Takeshi Jimbo
发明人： Toru Hashimoto , Akira Takahashi , Takeshi Imaizumi , Susumu Saito , Hiroshi Tanaka , Takeshi Jimbo
摘要： A method of detecting a fault of an exhaust gas recirculation system of an internal combustion engine, comprising detecting a temperature relating to a temperature of a gas recirculating through the exhaust gas recirculation system when the system is in a condition in which the system should be operated to return part of an exhaust gas of the engine to an intake passage, and detecting that the exhaust gas recirculation system is defective when the detected temperature is lower than a fault discriminating value. A condition of air to be sucked into the engine, such as intake air temperature and atmospheric pressure, is detected, and the fault discriminating value is set in accordance with the detected air condition, whereby abnormality or fault of the exhaust gas recirculation system can be detected accurately and reliably. Preferably, the fault detection is inhibited until the engine temperature reaches a predetermined value and/or a predetermined time period elapses after the start-up of the engine, whereby erroneous fault detection can be prevented.
摘要翻译： 一种检测内燃机废气再循环系统的故障的方法，包括当所述系统处于所述系统应运行的状态时，检测与通过所述废气再循环系统再循环的气体的温度有关的温度 将发动机的废气的一部分返回到进气通路，并且在检测到的温度低于故障判别值时检测出排气再循环系统有缺陷。 检测到吸入空气的空气的情况，例如进气温度和大气压，并根据检测到的空气状况设定故障判别值，从而排气再循环系统的异常或故障 检测准确可靠。 优选地，在发动机启动之后，直到发动机温度达到预定值和/或经过了预定时间段，才能禁止故障检测，从而可以防止错误故障检测。
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