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公开(公告)号：US5818178A
公开(公告)日：1998-10-06
申请号：US611774
申请日：1996-03-06
CPC分类号： H02P7/0094 , H02P7/04 , F02D11/10
摘要： In a valve control apparatus for an automobile, an H-bridge type chopper main circuit 4 is operated by a control signal PWM from a microcomputer 1 to thereby drive a motor 9 for controlling a throttle valve 10. The power element current from the chopper main circuit 4 is detected by a shunt resistor 5 in the form of a voltage, and the detected voltage is amplified by an amplifier 6 and then taken into the microcomputer 1 through a sample hold circuit 12 and an A/D converter. The sample hold circuit 12 is operated in synchronism with the control signal PWM from the microcomputer 1. Further, the A/D converter is also operated in synchronism with the control signal PWM from the microcomputer 1. The motor 9 is controlled by a throttle valve opening angle command and a throttle valve opening angle signal, and further the motor 9 is controlled by a detected motor current.
摘要翻译： 在汽车的气门控制装置中，通过来自微型计算机1的控制信号PWM来操作H桥式斩波器主电路4，由此驱动用于控制节气门10的电动机9.来自斩波器主体的功率元件电流 电路4由分流电阻器5以电压形式检测，检测电压由放大器6放大，然后通过采样保持电路12和A / D转换器进入微计算机1。 采样保持电路12与来自微型计算机1的控制信号PWM同步操作。此外，A / D转换器也与来自微型计算机1的控制信号PWM同步操作。电动机9由节流阀 打开角度指令和节气门打开角度信号，并且还通过检测到的电动机电流来控制电动机9。
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公开(公告)号：US5752485A
公开(公告)日：1998-05-19
申请号：US788565
申请日：1997-01-24
IPC分类号： B60W30/18 , F02D37/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D43/00 , F02P5/15 , F02D7/00
CPC分类号： B60W30/18 , B60W10/04 , B60W10/10 , B60W30/1819 , F02D37/02 , F02D41/1475 , F02D41/1487 , F02D41/1497 , F02D43/00 , F02D2200/0402 , F02D2250/18 , F02D2250/21 , F02D41/0215
摘要： The invention provides an output torque control method and apparatus for a lean burn internal combustion engine which accounts for aging of component parts, and in which no stepwise change of torque or shock occur when an air fuel ratio is changed. The method and apparatus according to the invention control an intake air amount while maintaining an emission purification function by controlling the air fuel ratio to that of a theoretical mixture (air fuel ratio of 14.7) in a case where a limit NOx emission is determined by using a detected air fuel ratio and lean burn operation becomes difficult due to the amount of NOx emissions. Abrupt change of an output torque when the air fuel ratio is changed is curtailed by controlling a fuel amount or an air amount after calculating the fuel amount or the air amount from an engine speed and an accelerator depression angle.
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3.发明授权
公开(公告)号：US5979404A
公开(公告)日：1999-11-09
申请号：US955367
申请日：1997-10-21
IPC分类号： B60W30/18 , F02D37/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D43/00 , F02P5/15 , F02D7/00
CPC分类号： B60W30/18 , B60W10/04 , B60W10/10 , B60W30/1819 , F02D37/02 , F02D41/1475 , F02D41/1487 , F02D41/1497 , F02D43/00 , F02D2200/0402 , F02D2250/18 , F02D2250/21 , F02D41/0215
摘要： The invention provides an output torque control method and apparatus for a lean burn internal combustion engine which accounts for aging of component parts, and in which no stepwise change of torque or shock occur when an air fuel ratio is changed. The method and apparatus according to the invention control an intake air amount while maintaining an emission purification function by controlling the air fuel ratio to that of a theoretical mixture (air fuel ratio of 14.7) in a case where a limit NOx emission is determined by using a detected air fuel ratio and lean burn operation becomes difficult due to the amount of NOx emissions. Abrupt change of an output torque when the air fuel ratio is changed is curtailed by controlling a fuel amount or an air amount after calculating the fuel amount or the air amount from an engine speed and an accelerator depression angle.
摘要翻译： 本发明提供了一种用于稀燃内燃机的输出转矩控制方法和装置，其考虑到部件的老化，并且其中当空燃比改变时不发生转矩或冲击的逐步变化。 根据本发明的方法和装置通过在通过使用下述方法确定极限NOx排放的情况下通过将空燃比控制为理论混合气体的空燃比来控制进气量（空气燃料比为14.7），同时保持排气净化功能 由于NOx排放量，检测到的空气燃料比和稀薄燃烧操作变得困难。 通过根据发动机转速和加速器倾角来计算燃料量或空气量后的燃料量或空气量来控制空燃比变化时的输出转矩的急剧变化。
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4.发明授权
公开(公告)号：US5660157A
公开(公告)日：1997-08-26
申请号：US491245
申请日：1995-06-16
IPC分类号： B60W30/18 , F02D37/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D43/00 , F02P5/15 , F02P5/00
CPC分类号： B60W30/18 , B60W10/04 , B60W10/10 , B60W30/1819 , F02D37/02 , F02D41/1475 , F02D41/1487 , F02D41/1497 , F02D43/00 , F02D2200/0402 , F02D2250/18 , F02D2250/21 , F02D41/0215
摘要： The invention provides an output torque control method and apparatus for a lean burn internal combustion engine which accounts for aging of component parts, and in which no stepwise change of torque or shock occur when an air fuel ratio is changed. The method and apparatus according to the invention control an intake air amount while maintaining an emission purification function by controlling the air fuel ratio to that of a theoretical mixture (air fuel ratio of 14.7) in a case where a limit NOx emission is determined by using a detected air fuel ratio and lean burn operation becomes difficult due to the amount of NOx emissions. Abrupt change of an output torque when the air fuel ratio is changed is curtailed by controlling a fuel amount or an air amount after calculating the fuel amount or the air amount from an engine speed and an accelerator depression angle.
摘要翻译： 本发明提供了一种用于稀燃内燃机的输出转矩控制方法和装置，其考虑到部件的老化，并且其中当空燃比改变时不发生转矩或冲击的逐步变化。 根据本发明的方法和装置通过在通过使用下述方法确定极限NOx排放的情况下通过将空燃比控制为理论混合气体的空燃比来控制进气量（空气燃料比为14.7），同时保持排气净化功能 由于NOx排放量，检测到的空气燃料比和稀薄燃烧操作变得困难。 通过根据发动机转速和加速器倾角来计算燃料量或空气量后的燃料量或空气量来控制空燃比变化时的输出转矩的急剧变化。
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公开(公告)号：US5609132A
公开(公告)日：1997-03-11
申请号：US494627
申请日：1995-06-23
CPC分类号： F02D11/10 , F02D41/0002 , F02D2011/103 , F02D2041/0015 , Y02T10/42
摘要： The present invention has a structure of a lean-burn combustion engine 25 for burning a fuel by increasing the proportion of air to the fuel, a swirl control valve 8 for regulating a swirl intensity of combustion air inside an intake port in a lean-burn operation range of the lean-burn combustion engine 25, an accelerator pedal 1 for setting an acceleration request of a driver, and mechanical connection for mechanically connecting the accelerator pedal 1 to the swirl control valve 8, having a mechanism capable of setting the swirl control valve opening so that a lean limit can be expanded. Also, the invention has a structure of an intake system including the swirl control valve for regulating a swirl intensity of combustion air inside an intake port and a a driving mechanism for the valve can be produced easily and at a low cost, and a lean limit can be expanded.
摘要翻译： 本发明具有通过增加与燃料的空气比例来燃烧燃料的稀燃燃烧发动机25的结构，用于调节稀燃的进气口内的燃烧空气的涡旋强度的涡流控制阀8 稀燃燃烧发动机25的操作范围，用于设定驾驶员的加速请求的加速器踏板1和用于将加速器踏板1机械连接到涡旋控制阀8的机械连接，具有能够设定旋转控制的机构 阀门开度可以扩大稀薄限制。 此外，本发明还具有一种进气系统的结构，该进气系统包括用于调节进气口内的燃烧空气的涡流强度的旋流控制阀，并且可以容易地且成本低廉地制造阀的驱动机构， 扩大。
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公开(公告)号：US06248040B1
公开(公告)日：2001-06-19
申请号：US09237898
申请日：1999-01-27
IPC分类号： F16H5964
CPC分类号： F02P5/1504 , F02D41/024 , F02D41/1498 , F02D2200/1015 , F02P5/1514 , Y02T10/26 , Y02T10/46 , Y10T477/653
摘要： In an engine system, an ignition timing is changed in accordance with operation parameters of an engine. The engine system includes an exhaust gas clarifying equipment with a catalyst to clarify the specified components in the exhaust gas, catalyst temperature detecting unit for estimating or detecting the temperature of the catalyst, torque fluctuation detecting unit for detecting the state of fluctuation of an output torque of the engine, and ignition timing calculating unit for calculating the final ignition timing on the basis of the detected results of the torque fluctuation detecting unit and the catalyst temperature detecting unit.
摘要翻译： 在发动机系统中，点火正时根据发动机的运转参数而改变。 发动机系统包括具有用于澄清排气中的特定部件的催化剂的废气净化装置，用于估计或检测催化剂温度的催化剂温度检测单元，用于检测输出转矩波动状态的转矩波动检测单元 以及基于扭矩波动检测单元和催化剂温度检测单元的检测结果来计算最终点火正时的点火正时计算单元。
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公开(公告)号：US5894724A
公开(公告)日：1999-04-20
申请号：US599169
申请日：1996-02-09
CPC分类号： F02P5/1504 , F02D41/024 , F02D41/1498 , F02P5/1514 , F02D2200/1015 , Y02T10/26 , Y02T10/46 , Y10T477/653
摘要： In an engine system, an ignition timing is changed in accordance with operation parameters of an engine. The engine system includes an exhaust gas clarifying equipment with a catalyst to clarify the specified components in the exhaust gas, catalyst temperature detecting unit for estimating or detecting the temperature of the catalyst, torque fluctuation detecting unit for detecting the state of fluctuation of an output torque of the engine, and ignition timing calculating unit for calculating the final ignition timing on the basis of the detected results of the torque fluctuation detecting unit and the catalyst temperature detecting unit.
摘要翻译： 在发动机系统中，点火正时根据发动机的运转参数而改变。 发动机系统包括具有用于澄清排气中的特定部件的催化剂的废气净化装置，用于估计或检测催化剂温度的催化剂温度检测单元，用于检测输出转矩波动状态的转矩波动检测单元 以及基于扭矩波动检测单元和催化剂温度检测单元的检测结果来计算最终点火正时的点火正时计算单元。
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8.发明授权Method and apparatus for detecting combustion conditions in multicylinder internal combustion engine based upon engine speed evaluation 失效基于发动机速度评估的多用途内燃机发动机燃烧条件检测方法与装置
公开(公告)号：US5241480A
公开(公告)日：1993-08-31
申请号：US638452
申请日：1991-01-04
申请人： Yutaka Takaku , Mineo Kashiwaya , Toshio Ishii , Naoyuki Tanaka
发明人： Yutaka Takaku , Mineo Kashiwaya , Toshio Ishii , Naoyuki Tanaka
CPC分类号： F02D41/1497 , G01M15/11 , F02D41/008
摘要： A method and apparatus for detecting the quality of combustion in each cylinder of a multi-cylinder internal combustion engine is disclosed. The invention determines a combustion stroke of each cylinder by sensors and detects the rotational speed of the engine at least three times during each combustion stroke by a rotation speed calculation device. The detected rotational speeds are evaluated by an arithmetic calculation device to identify the variation in rotational speed of each piston during a combustion stroke whereby the quality of combustion is, thus, determined. In a feature of the invention fluctuations in rotational speed caused by reciprocating inertia (.omega..sub.c) are calculated and eliminated from fluctuation in engine speed caused by combustion (.omega..sub.g) so that the quality of combustion based only upon variation in detected speeds caused by combustion is derived.
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公开(公告)号：US4448172A
公开(公告)日：1984-05-15
申请号：US380339
申请日：1982-05-20
申请人： Mineo Kashiwaya , Kinsaku Yamada , Yoshiyuki Tanabe , Yoshishige Oyama , Hiroshi Kuroiwa , Hisato Tsuruta
发明人： Mineo Kashiwaya , Kinsaku Yamada , Yoshiyuki Tanabe , Yoshishige Oyama , Hiroshi Kuroiwa , Hisato Tsuruta
CPC分类号： G01F1/6842 , F02D41/187 , F02M69/18 , G01F1/72
摘要： A fuel injection apparatus in accordance with the invention has a hot wire type sensor disposed in a bypass air passage and adapted to sense the flow rate of air in the bypass air passage. In order to absorb the pulsation of air flowing in the bypass air passage, the bypass air passage opens at its one end to the air cleaner of an intake system disposed in a portion upstream from the hot wire sensor. An orifice is disposed in a portion of the bypass air passage downstream from the hot wire sensor.
摘要翻译： 根据本发明的燃料喷射装置具有设置在旁通空气通道中并适于感测旁路空气通道中的空气流量的热丝型传感器。 为了吸收在旁通空气通道中流动的空气的脉动，旁通空气通道在其一端处于布置在热线传感器上游部分的进气系统的空气滤清器的开口。 在热线传感器下游的旁路空气通道的一部分中设置孔口。
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公开(公告)号：US4225535A
公开(公告)日：1980-09-30
申请号：US926112
申请日：1978-07-19
CPC分类号： F02M7/087
摘要： In an acceleration pump of a carburetor for an internal combustion engine including a cylinder and a piston reciprocatorily inserted in the cylinder, the piston is formed in its upper portion with a transverse bore for a stopper member to extend therethrough to be urged by a heat sensitive element to move in a direction at right angles to the direction of reciprocatory movement of the piston, so that additional fuel for acceleration can be supplied to the engine in a quantity which is accurately corrected to accommodate itself to changes in ambient temperature, by means of the heat sensitive element. The transverse bore is formed at its top wall and bottom wall with projections, and the stopper member is formed at its upper surface and lower surface with depressed portions, so as to enable the lengths of the downward and upward strokes of the piston to be controlled in accordance with changes in ambient temperature. Thus the acceleration pump is capable of supplying to the engine additional fuel for acceleration in a quantity which is corrected to accommodate itself for changes in ambient temperature.
摘要翻译： 在用于内燃机的化油器的加速泵中，该内燃机包括气缸和往复运动地插入气缸中的活塞，活塞在其上部形成有用于止动件延伸穿过的横向孔，以被热敏感 元件在与活塞的往复运动方向成直角的方向上移动，从而可以将附加的用于加速的燃料以可精确校正的量供给发动机，从而通过借助于 热敏元件。 横向孔在其顶壁和底壁上形成有突起，并且止动构件在其上表面和下表面形成有凹陷部分，以便能够控制活塞的向下和向上冲程的长度 根据环境温度的变化。 因此，加速泵能够向发动机提供额外的加速燃料，其量被校正以适应环境温度的变化。
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