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1. 发明授权

US4987876A Fuel injection system for an internal combustion engine 失效
标题翻译：内燃机燃油喷射系统
公开(公告)号：US4987876A
公开(公告)日：1991-01-29
申请号：US377411
申请日：1989-07-10
申请人： Kunitomo Minamitani , Tetsuro Takaba , Terufumi Yamashita , Toshihide Nishikawa
发明人： Kunitomo Minamitani , Tetsuro Takaba , Terufumi Yamashita , Toshihide Nishikawa
IPC分类号： F02D41/04 , F02D41/18 , F02D41/34
CPC分类号： F02D41/182 , F02D41/345 , Y02T10/44
摘要： A multi-cylinder internal combustion engine is provided with a fuel injection system, which includes a plurality of fuel injection nozzles securely mounted in independent intake passages communicating with combustion chambers of respective cylinders, an air-flow sensor for detecting the amount of intake air to be led into each combustion chamber, a crank angle sensor and a cylinder discrimination sensor for detecting the present stroke timing of each cylinder, a speed sensor for detecting the engine speed and a control unit for outputting a signal to the fuel injection nozzles so that a predetermined amount of fuel may be injected to each cylinder at a predetermined timing on the basis of values detected by the respective sensors. The control unit calculates the injection timing of fuel to be injected into each cylinder so that the injection start timing may be altered in compliance with driving conditions of the engine. The control unit also calculates the amount of fuel to be injected into each cylinder on the basis of at least the amount of intake air and the engine speed. The amount of intake air is detected at a timing which is altered in compliance with the injection start timing and close to this timing.
摘要翻译：多缸内燃机设置有燃料喷射系统，该燃料喷射系统包括牢固地安装在与各气缸的燃烧室连通的独立进气通路中的多个燃料喷射喷嘴，用于检测进气量的气流传感器被引导到每个燃烧室中，一个曲柄角传感器和用于检测每个气缸的当前行程时间的气缸识别传感器，用于检测发动机转速的速度传感器和用于向燃料喷射喷嘴输出信号的控制单元，基于由各个传感器检测到的值，可以在预定定时将预定量的燃料喷射到每个气缸。控制单元计算要喷射到每个气缸中的燃料的喷射正时，使得喷射开始定时可以根据发动机的行驶条件而改变。控制单元还基于至少进气量和发动机转速来计算要喷射到每个气缸中的燃料量。在根据喷射开始时刻改变并接近该定时的定时检测进气量。

2. 发明授权

US4703735A Air-fuel ratio control system for multicylinder engine 失效
标题翻译：多缸发动机空燃比控制系统
公开(公告)号：US4703735A
公开(公告)日：1987-11-03
申请号：US737418
申请日：1985-05-24
申请人： Kunitomo Minamitani , Masahiro Izuo , Yuji Nakao , Toshihide Nishikawa , Hiroyuki Kawaguchi
发明人： Kunitomo Minamitani , Masahiro Izuo , Yuji Nakao , Toshihide Nishikawa , Hiroyuki Kawaguchi
IPC分类号： F02D41/14
CPC分类号： F02D41/1484 , F02D41/1443
摘要： The plurality of cylinders of a multicylinder engine are divided into first group cylinders and second group cylinders, and first and second exhaust sensors are provided to respectively detect the air-fuel ratios of the intake mixtures fed to the first group cylinders and second group cylinders. The air-fuel ratio for the first group cylinders is controlled in a closed loop by a first integration signal generated based on the output of the first exhaust sensor and the air-fuel ratio for the second group cylinders is controlled in a closed loop by a second integration signal generated based on the output of the second exhaust sensor. One of the first and second integration signals is corrected so that the air-fuel ratios for the first group cylinders and second group cylinders are increased and reduced in phases reverse to each other.
摘要翻译：多缸发动机的多个气缸被分成第一组气缸和第二组气缸，并且提供第一和第二排气传感器以分别检测供给到第一组气缸和第二组气缸的进气混合物的空燃比。第一组气缸的空燃比通过基于第一排气传感器的输出而产生的第一积分信号在闭环中控制，并且第二组气缸的空燃比被闭环控制基于第二排气传感器的输出产生的第二积分信号。校正第一和第二积分信号中的一个，使得第一组气缸和第二组气缸的空燃比相互相反地增加和减小。

3. 发明授权

US4827885A Engine idling speed control system 失效
标题翻译：发动机空转速度控制系统
公开(公告)号：US4827885A
公开(公告)日：1989-05-09
申请号：US971460
申请日：1988-01-20
申请人： Toshihide Nishikawa , Takashi Inoue
发明人： Toshihide Nishikawa , Takashi Inoue
IPC分类号： F02D41/08 , F02D41/16 , F02D41/24 , F02D45/00 , F02P5/15
CPC分类号： F02D41/2422 , F02D41/083 , F02D41/16 , F02P5/1508 , Y02T10/46
摘要： A system for controlling the idling speed of an internal combustion engine includes a rotational speed sensor for sensing the rotational speed of an engine, a determination unit for determining whether the engine is in an idling operation state, a memory for storing engine control variables corresponding to the rotational speed of the engine when the determination unit determines that the engine is in the idling operating state, and an engine output controller which, when the discrimination unit determines that the engine is in the idling operating state, reads engine control variable information out of the memory in accordance with the rotational speed sensed by the sensor, and controls the output of the engine in accordance with the information read. Control of engine speed is achieved merely by having the engine output controller read out the engine control variable information from the memory when the engine output is controlled.
摘要翻译：用于控制内燃机的空转速度的系统包括用于感测发动机的转速的转速传感器，用于确定发动机是否处于怠速运转状态的确定单元，用于存储对应于发动机的发动机控制变量的存储器当确定单元确定发动机处于怠速运行状态时发动机的转速;以及发动机输出控制器，当判别单元确定发动机处于怠速运转状态时，将发动机控制变量信息从所述存储器根据所述传感器检测到的转速，并且根据读取的信息来控制所述发动机的输出。发动机转速的控制仅通过使发动机输出控制器在控制发动机输出时从存储器读出发动机控制变量信息来实现。

4. 发明授权

US4807581A System for controlling the operation of an internal combustion engine 失效
标题翻译：用于控制内燃机运转的系统
公开(公告)号：US4807581A
公开(公告)日：1989-02-28
申请号：US930103
申请日：1986-11-13
申请人： Toshihide Nishikawa , Kenichirou Hanada , Yukinobu Nishimura , Setsuhiro Shimomura
发明人： Toshihide Nishikawa , Kenichirou Hanada , Yukinobu Nishimura , Setsuhiro Shimomura
IPC分类号： F02D45/00 , F02D41/00 , F02D41/04 , F02D41/10 , F02D41/18
CPC分类号： F02D41/10 , F02D41/045 , F02D41/187
摘要： A system for controlling the operation of an internal combustion engine on the basis of air/fuel ratios and engine loads. A flow rate of intake air sucked into the engine and the cycle of engine revolutions are detected to determine an average flow rate of intake air, which is then used in cooperation with a compression ratio and an engine displacement to determine a net flow rate of intake air or the charging efficiency of the engine. This parameter represents a precise engine load and is used to regulate fuel injected into the engine. As a result, engine operations may be optimally controlled even during transitional operating states of the engine.
摘要翻译：基于空燃比和发动机负荷来控制内燃机的运转的系统。检测吸入发动机的进气的流量和发动机转速的循环，以确定进气的平均流量，然后与压缩比和发动机排量配合使用，以确定进气的净流量空气或发动机的充电效率。该参数表示精确的发动机负载，用于调节注入发动机的燃料。因此，即使在发动机的过渡运行状态下，也可以最佳地控制发动机运转。

5. 发明授权

US4706634A Fuel-injection control system for an internal combustion engine 失效
标题翻译：内燃机燃油喷射控制系统
公开(公告)号：US4706634A
公开(公告)日：1987-11-17
申请号：US930010
申请日：1986-11-13
申请人： Toshihide Nishikawa , Kenichirou Hanada , Yukinobu Nishimura , Setsuhiro Shimomura
发明人： Toshihide Nishikawa , Kenichirou Hanada , Yukinobu Nishimura , Setsuhiro Shimomura
IPC分类号： F02D41/00 , F02D41/10 , F02D41/18 , F02D41/34 , F02D45/00 , F02M51/00
CPC分类号： F02D41/187 , F02D41/105
摘要： A novel and improved fuel-injection control system for an internal combustion engine capable of effecting minute or fine revisions of acceleration of an engine by appropriately processing an output signal from an AFS without employing a throttle sensor for detecting the opening degree of a throttle valve. The width of a basic injection pulse is calculated from the amount of intake air sucked into an internal combustion engine and the number of engine revolutions so that between the injection pulses synchronized with the number of engine revolutions, a series of special injection pulses having the calculated pulse width are generated for revision of engine acceleration. The fuel-injection control system comprises: an arithmetic operation means for calculating an engine load from the amount of intake air sucked into the engine and the number of engine revolutions; a judging means for judging whether or not a parameter representative of the engine load is less than a predetermined reference value; a first pulse-generating means adapted to generate a first special injection pulse in response to the amount of the suction air when the judging means judges that the parameter is less than the predetermined reference value; a second pulse-generating means adapted to revise the engine acceleration outside a pulsation range in which the amount of the intake air pulsates during a first predetermined period of time starting from the generation of the first special injection pulse and to generate a series of special injection pulses; and a revision-prohibiting means for prohibiting the revision of engine acceleration in the pulsation range of the intake air during a second predetermined period of time exceeding the first predetermined period starting from the generation of the first special injection pulse.
摘要翻译：一种用于内燃机的新型改进的燃料喷射控制系统，其能够通过在不使用用于检测节流阀的开度的节气门传感器的情况下适当地处理来自AFS的输出信号来对发动机的加速度进行微小或细微修正。基本喷射脉冲的宽度是从吸入内燃机的进气量和发动机转数计算出的，使得在与发动机转数之间同步的喷射脉冲之间，计算一系列特殊喷射脉冲产生脉冲宽度以修正发动机加速度。燃料喷射控制系统包括：用于从吸入发动机的进气量和发动机转数来计算发动机负荷的算术运算装置; 用于判断代表发动机负荷的参数是否小于预定参考值的判断装置; 第一脉冲发生装置，适于当所述判断装置判定所述参数小于所述预定参考值时响应于所述吸入空气量产生第一特殊喷射脉冲; 第二脉冲发生装置，其适于在从第一特殊喷射脉冲的产生开始的第一预定时间段内进入空气脉动的脉动范围之外修正发动机加速度，并产生一系列特殊喷射脉冲以及修正禁止装置，用于在超过从第一特殊喷射脉冲的产生开始的第一预定时间段的第二预定时间段内禁止修正进气脉动范围内的发动机加速度。

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