公开(公告)号：US4709334A

公开(公告)日：1987-11-24

申请号：US781053

申请日：1985-09-27

申请人： Yoshiharu Abe ,  Yoshio Wazaki ,  Tetsuya Oono

发明人： Yoshiharu Abe ,  Yoshio Wazaki ,  Tetsuya Oono

IPC分类号： F02D41/16 ,  F02D41/00 ,  F02D41/04 ,  F02D41/08 ,  F02D5/02 ,  F02M51/00

CPC分类号： F02D41/045 ,  F02D41/08

摘要： A method for controlling the fuel supply of an internal combustion engine determines the fuel supply amount on the basis of sampled values of a pressure level within an intake pipe of the engine when the engine is operating outside of an idling range, and determines the fuel supply amount on the basis of sampled values of rotational speed of the engine when a predetermined time period has passed after the entrance of the engine operation into the idling range, and an idling speed of the engine is stabilized. Thus, a change in the engine rotational speed upon the start of idling which has been occurred in the prior art is eliminated.

摘要翻译： 用于控制内燃机的燃料供给的方法基于发动机在怠速范围外运行时的发动机的进气管内的压力水平的取样值来决定燃料供给量，并且确定燃料供给量 基于在发动机运转进入怠速范围之后经过预定时间段时发动机的转速的采样值的量，并且发动机的空转速度稳定。 因此，消除了在现有技术中发生的空转开始时的发动机转速的变化。

公开(公告)号：US4562818A

公开(公告)日：1986-01-07

申请号：US627621

申请日：1984-07-03

申请人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

发明人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

IPC分类号： F02D41/14 ,  F02B3/02 ,  F02D5/02

CPC分类号： F02D41/1498 ,  F02D2200/1015

摘要： In an internal combustion engine, a standard deviation of combustion variations generated for every firing stroke of at least one cylinder is calculated. The misfire limit of the engine is detected by determining whether or not the calculated standard deviation is greater than a reference value. When the calculated standard deviation is greater than the reference value, the controlled air-fuel ratio is decreased, while when the calculated standard deviation is not greater than the reference value, the controlled air-fuel ratio is increased, thereby attaining a lean burn system without a lean mixture sensor.

摘要翻译： 在内燃机中，计算对于至少一个气缸的每个击发行程产生的燃烧变化的标准偏差。 通过确定计算的标准偏差是否大于参考值来检测发动机的失火极限。 当计算出的标准偏差大于参考值时，控制的空燃比降低，而当计算的标准偏差不大于参考值时，控制的空燃比增加，从而获得稀燃系统 没有稀混合传感器。

公开(公告)号：US4562817A

公开(公告)日：1986-01-07

申请号：US445552

申请日：1982-11-30

申请人： Teruyuki Ito

发明人： Teruyuki Ito

IPC分类号： F02M51/08 ,  F02D41/34 ,  F02M69/04 ,  F02M69/46 ,  F02D5/02

CPC分类号： F02D41/345 ,  F02M69/042 ,  Y02T10/44

摘要： A fuel injection control system for an internal combustion engine having a fuel injection valve located near an intake port can control the timing of fuel injection in synchronism with engine revolution. The fuel injection control system improves fuel atomization characteristics and uniformity of air/fuel mixture entering the engine cylinders. The control system controls the fuel injection timing so that the fuel injection occurs within a valve-overlap period during which an intake valve and an exhaust valve are both open. In order to precisely control the fuel injection timing, the piston stroke of each engine cylinder is detected with reference to the crank shaft angular position.

摘要翻译： 用于具有位于进气口附近的燃料喷射阀的内燃机的燃料喷射控制系统可以与发动机转数同步地控制燃料喷射的时间。 燃料喷射控制系统提高进入发动机气缸的空气/燃料混合物的燃料雾化特性和均匀性。 控制系统控制燃料喷射正时，使得在进气门和排气门都打开的阀重叠时段内发生燃料喷射。 为了精确地控制燃料喷射正时，参考曲轴角度位置检测每个发动机气缸的活塞行程。

公开(公告)号：US4479186A

公开(公告)日：1984-10-23

申请号：US294154

申请日：1981-08-19

申请人： Mitsunori Takao ,  Toshiaki Mizuno

发明人： Mitsunori Takao ,  Toshiaki Mizuno

IPC分类号： F02D41/04 ,  F02D41/02 ,  F02D41/08 ,  F02D41/26 ,  F02D43/00 ,  F02D45/00 ,  F02P5/15 ,  F02B5/02 ,  F02D5/02 ,  G06F15/20

CPC分类号： F02D41/26 ,  F02P5/1502 ,  Y02T10/46

摘要： A method for controlling an internal combustion engine by controlling the amount of the fuel injection and the ignition timing of the engine using the output signal of a computer which takes the signals produced by the air intake pressure sensor and the rotational speed sensor, calculates the air intake pressure difference .DELTA.Pm between the preceding and the present time unit and the rotational speed difference .DELTA.N between the preceding and the present time unit, calculates the correction value from the calculated .DELTA.Pm and .DELTA.N, and modifies the control value for the engine.

摘要翻译： 使用采用由进气压力传感器和转速传感器产生的信号的计算机的输出信号，通过控制燃料喷射量和发动机的点火正时来控制内燃机的方法计算空气 前一个和当前时间单位之间的进气压差DELTA Pm和前一个和当前时间单位之间的转速差DELTA N根据计算的DELTA Pm和DELTA N计算校正值，并且修改发动机的控制值 。

公开(公告)号：US4475501A

公开(公告)日：1984-10-09

申请号：US348178

申请日：1982-02-12

申请人： Katsushi Kato ,  Shigenori Isomura ,  Akio Kobayashi ,  Toshio Kondo

发明人： Katsushi Kato ,  Shigenori Isomura ,  Akio Kobayashi ,  Toshio Kondo

IPC分类号： F02B75/02 ,  F02D41/10 ,  F02D41/12 ,  F02D5/02

CPC分类号： F02D41/126 ,  F02B2075/027

摘要： An electronic control type fuel injection system in which, at the time of engine deceleration the fuel injection is stopped, and when resuming to a normal fuel injection from the fuel injection stopped condition, if the reducing rate of the engine speed is smaller than a preset value, a smaller amount of fuel than the amount of fuel injection during normal operation as if fuel injection had not been stopped is first injected and subsequently the amount of fuel to be injected is gradually increased, while when the reducing rate of the engine speed is larger than the preset value, a larger amount of fuel than the fuel injection amount during normal operation is injected.

摘要翻译： 一种电子控制式燃料喷射系统，其中在发动机减速时燃料喷射停止，并且当从燃料喷射停止状态恢复到正常燃料喷射时，如果发动机转速的降低率小于预设值 值，与正常运转时的燃料喷射量相比，燃料喷射未停止时的燃料量少，首先进行喷射，随后喷射的燃料量逐渐增加，而当发动机转速的降低速度为 大于预设值时，喷射比正常操作期间的燃料喷射量更大的燃料量。

公开(公告)号：US4457282A

公开(公告)日：1984-07-03

申请号：US390963

申请日：1982-06-22

申请人： Toshihiko Muramatsu ,  Akio Kobayashi ,  Tomomi Eino ,  Toshio Kondo

发明人： Toshihiko Muramatsu ,  Akio Kobayashi ,  Tomomi Eino ,  Toshio Kondo

IPC分类号： F02D41/04 ,  F02D41/18 ,  F02D41/26 ,  F02D5/02

CPC分类号： F02D41/182 ,  F02D41/263

摘要： An electronic control system for fuel injection into an engine controls an air-fuel ratio at a desired air-fuel ratio during a high load operation of the engine. The electronic control system performs the operations of detecting operating parameters of the engine, computing by a computing unit a time width in accordance with the detected operating parameters, selecting a maximum time width value of the injection pulse from a preliminarily stored table of maximum time width values thereof in accordance with the value of at least one of the detected operating parameters, comparing the computed time width value with the selected maximum time width value, limiting the computed time width value in accordance with the selected maximum time width value, and applying the injection pulse to the fuel injectors, thereby controlling the air-fuel ratio under the high load conditions at a desired air-fuel ratio and also preventing the malfunction of continuous fuel supply from occurring in the fuel injectors.

摘要翻译： 用于燃料喷射到发动机中的电子控制系统在发动机的高负载运行期间控制所需空燃比的空燃比。 电子控制系统执行检测发动机的运行参数的操作，由计算单元根据检测到的运行参数计算时间宽度，从预先存储的最大时间宽度表选择喷射脉冲的最大时间宽度值 根据所检测到的操作参数中的至少一个的值，将所计算的时间宽度值与所选择的最大时间宽度值进行比较，根据所选择的最大时间宽度值限制计算出的时间宽度值，并将 喷射脉冲，从而在高负载条件下以期望的空燃比控制空燃比，并且还防止在燃料喷射器中发生连续燃料供应的故障。

公开(公告)号：US4450814A

公开(公告)日：1984-05-29

申请号：US357646

申请日：1982-03-12

申请人： Kunifumi Sawamoto ,  Tatsuo Morita ,  Kenji Ikeura ,  Hiroshi Yamaguchi

发明人： Kunifumi Sawamoto ,  Tatsuo Morita ,  Kenji Ikeura ,  Hiroshi Yamaguchi

IPC分类号： F02D41/10 ,  F02B37/00 ,  F02B37/16 ,  F02D21/08 ,  F02D41/00 ,  F02D41/14 ,  F02D5/02 ,  F02B3/00

CPC分类号： F02B37/16 ,  F02D41/0007 ,  F02D41/1498 ,  F02D2200/1015 ,  Y02T10/144

摘要： Normally, an air-fuel ratio is controlled in accordance with the engine speed and the intake air quantity of an internal combustion engine with a turbocharger. When the output pressure of the turbocharger increases excessively, an intake relief valve opens to decrease the intake air quantity. In this case, the fuel injection quantity is controlled solely in accordance with the engine speed.

摘要翻译： 通常，根据具有涡轮增压器的内燃机的发动机转速和进气量控制空燃比。 当涡轮增压器的输出压力过大时，进气安全阀打开以减小进气量。 在这种情况下，仅根据发动机转速控制燃料喷射量。

公开(公告)号：US4417201A

公开(公告)日：1983-11-22

申请号：US370140

申请日：1973-06-14

申请人： Junuthula N. Reddy

发明人： Junuthula N. Reddy

IPC分类号： F02D41/20 ,  F02D41/30 ,  F02M51/00 ,  F02D5/02 ,  H01F7/18

CPC分类号： F02D41/20 ,  F02D41/3005 ,  F02D2041/2048 ,  F02D2041/2051 ,  H01F2007/1888

摘要： A circuit for controlling the energy supplied to electromagnetic injector valves in an electronically controlled fuel injection system is disclosed herein. The disclosed circuitry limits the voltage available to the injector valves to a selected maximum level slightly below the minimum voltage normally obtainable from a vehicle battery recharging system and further limits the maximum current flow through the electromagnetic coil of each open injector valve to a preselected valve. The preselected current value may be changed during operation to minimize energy stored in the magnetic field of the electromagnetic coils.

摘要翻译： 本文公开了一种用于控制供给电子控制燃料喷射系统中的电磁喷射阀的能量的电路。 所公开的电路将可用于喷射器阀的电压限制在略低于通常可从车辆电池充电系统获得的最小电压的选定最大电平，并且进一步限制通过每个打开的喷射器阀的电磁线圈到预选阀的最大电流。 可以在操作期间改变预选的电流值以使存储在电磁线圈的磁场中的能量最小化。

公开(公告)号：US4404943A

公开(公告)日：1983-09-20

申请号：US325775

申请日：1981-11-30

申请人： Alec H. Seilly

发明人： Alec H. Seilly

IPC分类号： F02D41/40 ,  F02M47/04 ,  F02M59/00 ,  F02M59/10 ,  F02M59/44 ,  F02D5/02

CPC分类号： F02M59/00 ,  F02D41/40 ,  F02M47/04 ,  F02M59/105 ,  F02M59/44 ,  Y02T10/44

摘要： A fuel system for an internal combustion engine includes a small accumulator in which fuel is stored, a fuel injection nozzle including an electrically operated means which controls fuel flow through the nozzle from the accumulator, and a transducer for providing a signal representing the accumulator pressure. An electrically operated valve is provided to control the flow of fuel from a pump to the accumulator and the system includes a control circuit for the valve. The control circuit is supplied with the signal provided by the transducer and also with a desired pressure signal which conveniently is obtained from a pressure map to which a signal representative of an engine operating parameter is supplied.

摘要翻译： 一种用于内燃机的燃料系统包括储存燃料的小蓄能器，燃料喷射喷嘴，其包括控制从蓄能器通过喷嘴的燃料流动的电动装置，以及用于提供表示蓄能器压力的信号的换能器。 提供电动阀以控制从泵到蓄能器的燃料流动，并且该系统包括用于阀的控制回路。 向控制电路提供由换能器提供的信号，并且还具有方便地从提供有代表发动机操作参数的信号的压力图获得的期望的压力信号。

公开(公告)号：US4391243A

公开(公告)日：1983-07-05

申请号：US348179

申请日：1982-02-12

申请人： Hironori Bessho

发明人： Hironori Bessho

IPC分类号： F02D41/12 ,  F02D5/02

CPC分类号： F02D41/123 ,  F02D2200/501

摘要： Fuel is cut off in the deceleration of a vehicle to improve efficiency of fuel consumption. Rotational speed of an engine in the resumption of fuel supply in the completion of the fuel cut-off is set to a value smaller than that otherwise set when a brake device is operated or the vehicle speed is higher than a predetermined value. While the torque of the engine varies abruptly to produce impact when the fuel cut-off is completed, passengers have a slight feeling of impact while the vehicle is being braked and travelling with high speed. Thus, while the feeling of impact is reduced, a period of fuel cut-off is increased to improve further the efficiency of fuel consumption and others.

摘要翻译： 燃料在车辆减速时被切断，以提高燃料消耗的效率。 在完成燃料切断时恢复燃料供给的发动机的转速被设定为小于当制动装置被操作或车速高于预定值时设定的值的值。 当燃油切断完成时，发动机的扭矩急剧变化，产生冲击，当车辆制动和高速行驶时，乘客有轻微的冲击感。 因此，虽然减少了冲击感，但是燃料切断时间增加，从而进一步提高燃料消耗的效率等。