公开(公告)号：US3854458A

公开(公告)日：1974-12-17

申请号：US26357972

申请日：1972-06-16

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/34 ,  F02B3/00

CPC classification number: F02D41/345 ,  Y02T10/44

Abstract: An internal combustion engine fuel injection control system having at least two groups of electrically controlled fuel injector valves which are capable of being operated so that the open time of each group of fuel injector valves may overlap. This is accomplished by a control circuit that produces a pulse train having pulse durations which are capable of being greater than the time required for the engine to complete one engine cycle divided by the number of fuel injector groups that supply fuel to said engine. A switching circuit applies the pulse train, with a phase differential, to the two groups of fuel injector valves so that switching to one injector valve group does not terminate the pulse being supplied to the other injector valve group.

Abstract translation: 一种内燃机燃料喷射控制系统，其具有至少两组电控燃料喷射阀，其能够被操作，使得每组燃料喷射阀的打开时间可以重叠。 这通过产生具有脉冲持续时间的脉冲串的控制电路来实现，脉冲持续时间能够大于发动机完成一个发动机循环所需的时间除以供给燃料的燃料喷射器组的数量。 开关电路将具有相位差的脉冲串施加到两组燃料喷射阀，使得切换到一个喷射器阀组不会终止被提供给另一喷射器阀组的脉冲。

公开(公告)号：US3800750A

公开(公告)日：1974-04-02

申请号：US3800750D

申请日：1971-08-10

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/32 ,  F02M51/00

CPC classification number: F02D41/32

Abstract: By deriving a substantially linear voltage signal from a pressure transducer and using that signal to control a plurality of current sources and current sinks, the controlled currents generated thereby may be passed through a resistance of known value to produce a usable output signal having a nonlinear relationship with respect to the pressure sensed by the transducer. If current sources to be controlled are designated by N, the resultant curve can have N-1 breakpoints where the slope of the curve of output voltage with respect to sensed pressure changes. By controlling a plurality of current sources which are active for all values of sensed pressure, the slope of the resultant curve can change from positive to negative values and back again.

Abstract translation: 通过从压力传感器导出基本线性的电压信号并且使用该信号来控制多个电流源和电流吸收器，由此产生的受控电流可以通过已知值的电阻以产生具有非线性关系的可用输出信号 相对于由换能器感测的压力。 如果要控制的电流源由N指定，则所得到的曲线可以具有N-1个断点，其中输出电压的曲线相对于感测压力的斜率改变。 通过控制对所感测压力的所有值有效的多个电流源，所得到的曲线的斜率可以从正值变化到负值，并且再次返回。

公开(公告)号：US3771502A

公开(公告)日：1973-11-13

申请号：US3771502D

申请日：1972-01-20

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/00 ,  F02D41/06 ,  F02D41/34 ,  F02D41/40 ,  F02M51/00 ,  F02B3/00 ,  F02N17/00

CPC classification number: F02D41/06

Abstract: A circuit for recognizing and providing warm-up enrichment fuel compensation for an electronic fuel control system is described herein. The circuit is adapted to recognize and respond to an engine operating parameter indicative of engine operation at an engine temperature less than the normal operating temperature and to increase the duration of the fuel injection command pulse generated by the main electronic fuel control system. In those electronic fuel control systems which provide a fuel injection command pulse whenever a generated voltage wave shape is below a threshold value, the present invention contemplates altering the shape of the generated wave shape to delay its excursion through the threshold value.

Abstract translation: 这里描述了用于识别和提供用于电子燃料控制系统的预热浓缩燃料补偿的电路。 该电路适于识别并响应发动机运转的发动机运转参数，该发动机运转参数在低于正常工作温度的发动机温度下发动机运转，并增加由主电子燃料控制系统产生的燃料喷射指令脉冲的持续时间。 在每当生成的电压波形低于阈值时提供燃料喷射指令脉冲的那些电子燃料控制系统中，本发明考虑改变所产生的波形的形状以延迟其偏移通过阈值。

公开(公告)号：US3822677A

公开(公告)日：1974-07-09

申请号：US15835171

申请日：1971-06-30

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/32 ,  F02D41/38 ,  F02M51/00

CPC classification number: F02D41/32 ,  F02D41/38

Abstract: A fuel pump control circuit is disclosed herein to provide optimum fuel delivery at constant operating pressure to the fuel injector valve means of an electronically controlled fuel supply system. By energizing the pump in response to the engine operating parameters which determine the engine fuel requirement, a minimum of fuel in excess of the fuel requirement is recirculated from the area of the engine back to the fuel reservoir. In order to suitably energize the fuel pump, the pump is provided with a maximum voltage during the time period of the injection pulse with the energizing voltage decreasing thereafter so that a minimum of fuel is circulated through the fuel supply system during the noninjection phase. This provides a variable level of average fuel pump energization.

Abstract translation: 本文公开了一种燃料泵控制电路，以在恒定操作压力下向电控燃料供应系统的燃料喷射阀装置提供最佳燃料输送。 通过响应于确定发动机燃料需求的发动机操作参数来激励泵，将超过燃料需求的最小燃料从发动机的区域再循环回到燃料储存器。 为了使燃料泵适当地通电，在喷射脉冲的时间段期间泵的最大电压被提供，其后的通电电压减小，使得在非注入阶段期间，燃料的最小值通过燃料供给系统循环。 这提供了可变水平的平均燃油泵通电。

公开(公告)号：US3794003A

公开(公告)日：1974-02-26

申请号：US3794003D

申请日：1972-01-13

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/34 ,  F02D41/12 ,  F02M51/00

CPC classification number: F02D41/12 ,  Y10S261/19

Abstract: This invention relates to an electronic deceleration control, responsive to engine operating condition sensors, cooperating with an electronic fuel control computer for an internal combustion engine for curtailing or terminating the fuel delivery to the engine under selected engine operating conditions indicating an operator''s demand for deceleration. The deceleration control restores normal fuel delivery to the engine in response to a second set of selected engine operating conditions indicating the demand for deceleration has been terminated. The inventive control responds to signals indicative of the engine speed and the intake manifold absolute pressure, and computes the first time derivative of the intake manifold pressure, giving an immediate indication of the deceleration demand independent of throttle position or a minimum manifold pressure. This control system, cooperating with an electronic fuel injection control system for an internal combustion engine, substantially reduces the exhaust emissions during the period of deceleration.

Abstract translation: 本发明涉及一种电子减速控制装置，其响应于发动机运转状况传感器，与用于内燃机的电子燃料控制计算机配合，用于在指示操作者减速需求的选定的发动机运行条件下，减少或终止向发动机输送的燃油。 减速控制响应于指示对减速度的需求已经终止的第二组选择的发动机运行状态，恢复向发动机的正常燃料输送。 本发明的控制器响应指示发动机速度和进气歧管绝对压力的信号，并且计算进气歧管压力的第一时间导数，给出与油门位置无关的减速需求的立即指示或最小歧管压力。 与用于内燃机的电子燃料喷射控制系统配合的该控制系统基本上减少了减速期间的废气排放。

公开(公告)号：US3734068A

公开(公告)日：1973-05-22

申请号：US3734068D

申请日：1970-12-28

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/00 ,  F02D41/04 ,  F02M51/08 ,  F02D5/00 ,  F02M51/00

CPC classification number: F02D41/04

Abstract: An internal combustion engine fuel injection control system of the type having one or more electrically controlled fuel injector valves which are opened and closed as a function of rotation of each revolution of the crank shaft and/or the pressure in the engine intake manifold so that the open time of the fuel injector valves changes with variations in the speed of the crank shaft even if the pressure in the engine intake manifold remains constant. This is accomplished by a control circuit that produces a periodic signal having periods and signal durations which are dependent upon the time required for the crank shaft to complete one revolution. Each signal generated during a revolution of the crank shaft includes a portion wherein the magnitude of the signal increases at a constant rate. The constant rate at which the magnitude of the periodic signal increases remains the same regardless of the changes in the duration of the periodic signal.

公开(公告)号：US3725678A

公开(公告)日：1973-04-03

申请号：US3725678D

申请日：1971-05-07

Applicant: BENDIX CORP

Inventor： REDDY J

IPC: F02D41/20 ,  H03K1/14

CPC classification number: F02D41/20 ,  F02D2041/2003 ,  F02D2041/2017 ,  F02D2041/2058

Abstract: The circuit of the present invention is operative to produce an output signal having a plurality of signal levels and which automatically switches therebetween in response to a remotely sensed voltage signal. The circuitry of the present invention includes a current source operative to provide a known quantity of current which is passed through a resistive means to establish the output voltage signal. A current sink is provided in parallel with the resistive network and is selectively operative or inoperative to vary the amount of current flowing from the current source through the resistive network. Means are provided to sense the remote voltage and to control the current sink in response to the sensed voltage. The sensed voltage is also applied to the resistive network through a uni-directional current flow device to establish within the resistive network a voltage which corresponds to the sensed voltage whereby a decrease in the sensed voltage will automatically produce a corresponding decrease in the voltage output signal.

Abstract translation: 本发明的电路可操作地产生具有多个信号电平的输出信号，并且响应于遥感的电压信号而在它们之间自动切换。 本发明的电路包括电流源，用于提供已知量的电流，该电流通过电阻装置以建立输出电压信号。 电流接收器与电阻网络并联提供，并且选择性地操作或不可操作地改变从电流源流过电阻网络的电流量。 提供了用于感测远程电压并且响应于所感测的电压来控制电流吸收器的装置。 所感测的电压还通过单向电流装置施加到电阻网络，以在电阻网络内建立对应于感测电压的电压，由此感测电压的降低将自动产生电压输出信号的相应减小 。