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公开(公告)号：US4649745A
公开(公告)日：1987-03-17
申请号：US671615
申请日：1984-11-15
CPC分类号： G01F1/6986
摘要： An apparatus for measuring a flow of intake air to an engine includes a bridge circuit including a heat resistor placed in an intake air path of the engine, a resistor for sensing the temperature of the intake air, and a plurality of balance resistors. A heating current is supplied to this bridge circuit through a transistor controlled by a periodical current-passage control signal generated by a microcomputer. A signal Vh, representing a temperature change of the heat resistor heated by the heating current, is detected by the microcomputer. A first correction value is computed by using a difference between the detected value from the microcomputer and a signal Vho, representing temperature of the heat resistor when the bridge circuit is balanced at normal temperature. A time width correction value .DELTA.Do1 is computed from a table on the basis of the first correction value. The correction signal .DELTA.Do1 is used for correcting the current passage time. The current passage time width as corrected is used for computing a flow of the intake air.
摘要翻译： 用于测量到发动机的进气的流量的装置包括桥接电路，其包括放置在发动机的进气通道中的热电阻器，用于感测进气的温度的电阻器和多个平衡电阻器。 通过由微型计算机产生的周期性电流通过控制信号控制的晶体管，向该桥式电路供给加热电流。 由微型计算机检测表示由加热电流加热的热电阻的温度变化的信号Vh。 通过使用来自微型计算机的检测值和信号Vho之间的差来计算第一校正值，该信号Vho表示在常规温度下桥接电路平衡时的热电阻器的温度。 基于第一校正值从表中计算时间宽度校正值DELTA Do1。 校正信号DELTA Do1用于校正当前通过时间。 校正的当前通过时间宽度用于计算进气的流量。
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公开(公告)号：US4821726A
公开(公告)日：1989-04-18
申请号：US118675
申请日：1987-11-09
IPC分类号： F02M51/00 , F02D41/20 , F02D41/40 , F02M51/02 , F02M51/04 , F02M51/06 , F02M57/02 , F02M69/04 , F02M69/50
CPC分类号： F02M69/044 , F02D41/40 , F02M51/02 , F02M51/04 , F02M57/027 , F02M69/50 , F02D41/2096 , Y02T10/44
摘要： An electronic fuel injection device for pumping fuel to an internal-combustion engine by using the expansion-contraction characteristics of a piezoelectric device. The electronic fuel injection device has a pump member integrally formed and having a number of pistons corresponding to the number of cylinders of the associated internal-combustion engine, and a single actuator for driving the pump member. Accordingly, the same pressure is generated in all of the pump chambers when the pump member is driven by the actuator for each fuel injection cycle. Each pump chamber is connected to a fuel feed passage connected to a fuel tank and to a fuel injection passage connected to a fuel injection nozzle, and is filled with the fuel. The pump chambers are pressurized uniformly to distribute the fuel uniformly to the cylinders regardless of the passage characteristics of the fuel injection passages.
摘要翻译： 一种电子燃料喷射装置，用于通过使用压电装置的膨胀 - 收缩特性将燃料泵送到内燃机。 电子燃料喷射装置具有一体形成并且具有与相关联的内燃机的气缸数相对应的多个活塞的泵构件和用于驱动泵构件的单个致动器。 因此，当泵构件由用于每个燃料喷射循环的致动器驱动时，在所有泵室中产生相同的压力。 每个泵室连接到连接到燃料箱的燃料供给通道和连接到燃料喷射喷嘴的燃料喷射通道，并且填充有燃料。 不管燃料喷射通道的通道特性如何，泵室均匀地被加压以将燃料均匀地分配到气缸。
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3.发明授权
公开(公告)号：US4527530A
公开(公告)日：1985-07-09
申请号：US558191
申请日：1983-12-05
CPC分类号： F02D41/187
摘要： In a method for correcting the controlled variable of an engine according to the present invention, the quantity of suction air is measured by means of a thermal type flowmeter. The magnitude of pulsation of the suction air is obtained on the basis of the differential or variation of the measured section air quantity. At the same time, a coefficient representing the susceptibility to the pulsation which depends on the layout of the thermal type flowmeter and the like and the engine speed is calculated. A final correction for correcting the controlled variable is obtained on the basis of the magnitude of the pulsation and the coefficient representing the susceptibility.
摘要翻译： 在根据本发明的用于校正发动机的受控变量的方法中，通过热式流量计来测量吸入空气的量。 基于测量的部分空气量的差异或变化获得吸入空气的脉动的大小。 同时，计算表示依赖于热式流量计等的布局和发动机转速的对脉动敏感度的系数。 基于脉动的大小和表示磁化率的系数，求出用于校正控制变量的最终校正。
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