Method of controlling air-fuel ratio of internal combustion engine so as
to effectively maintain the air fuel ratio at a desired air-fuel ratio
of .lambda.=1
    11.
    发明授权
    Method of controlling air-fuel ratio of internal combustion engine so as to effectively maintain the air fuel ratio at a desired air-fuel ratio of .lambda.=1 失效
    控制内燃机的空燃比的方法,以有效地将空燃比保持在λ= 1的期望空燃比

    公开(公告)号:US4354238A

    公开(公告)日:1982-10-12

    申请号:US162481

    申请日:1980-06-24

    CPC分类号: F02D41/26

    摘要: A method of controlling the air-fuel ratio so as to be effectively maintained at a desired air-fuel ratio of .lambda.=1 is composed of a combination of an electronic map control for effecting the air-fuel ratio control on the basis of map data read out from a data map stored in ROM as air-fuel ratio control data in correspondence to various operation parameters of an engine and an O.sub.2 -feedback control for controlling the air-fuel ratio on the basis of oxygen quantity detected from the exhaust gas. Upon the occurrence of changes in the control quantity for a predetermined number of times in the course of the O.sub.2 -control, the latter is changed over to the map control. At that time point, a control quantity for the map control is corrected on the basis of a mean control quantity during the O.sub.2 -feedback control. Unless a significant variation takes place in the engine operating conditions, the map control is continued for a predetermined time and then changed over to the O.sub.2 -control. Upon the occurrence of a significant variation in the engine operating conditions, the map feedback control is immediately changed over to the O.sub.2 -control.

    摘要翻译: 控制空燃比以有效维持在λ= 1的期望空燃比的方法由用于基于地图数据进行空燃比控制的电子地图控制的组合 从存储在ROM中的数据图中读出,作为与发动机的各种操作参数相对应的空燃比控制数据,以及基于从废气检测的氧气量来控制空燃比的O2反馈控制。 在O2控制的过程中发生控制量改变预定次数时,将后者改变到地图控制。 在该时间点,基于在O2反馈控制期间的平均控制量来校正地图控制的控制量。 除非在发动机工作条件下发生显着变化,否则地图控制继续预定时间,然后转换到O2控制。 在发动机运行条件发生显着变化时,地图反馈控制立即转换到O2控制。

    Fuel injection system
    12.
    发明授权
    Fuel injection system 失效
    燃油喷射系统

    公开(公告)号:US4821698A

    公开(公告)日:1989-04-18

    申请号:US895217

    申请日:1986-08-11

    摘要: A fuel injection system of the type in which the opening time of a fuel injection valve is controlled on the basis of a predetermined program and in accordance with various operation parameters such as the intake air flow rate, engine speed and engine temperature. The system has a means for detecting at least one of the offset of the engine speed from a command speed and the engine speed variation per unit time, the data being used together with the above-mentioned operation parameters in controlling the opening time of the fuel injection valve.

    摘要翻译: 一种燃料喷射系统,其中燃料喷射阀的打开时间基于预定程序并根据诸如进气流量,发动机转速和发动机温度的各种操作参数来控制。 该系统具有用于检测发动机速度与命令速度的偏移和每单位时间的发动机速度变化中的至少一个的装置,该数据与上述操作参数一起用于控制燃料的打开时间 注射阀。

    Control device for engine provided with electromagnetic driven intake valves and computer useable medium having computer readable program code for performing the control
    15.
    发明授权
    Control device for engine provided with electromagnetic driven intake valves and computer useable medium having computer readable program code for performing the control 失效
    具有电磁驱动进气阀的发动机控制装置和具有执行控制的计算机可读程序代码的计算机可用介质

    公开(公告)号:US06286478B1

    公开(公告)日:2001-09-11

    申请号:US09385373

    申请日:1999-08-30

    IPC分类号: F02D4100

    摘要: A control device employing a computer readable program code, for an engine is provided with an electromagnetic actuator controlling opening and closing operation of an intake valve in response to an electric driving signal. The device determines a target A/F based on a signal corresponding to a requested engine output value and a signal representing a driving condition of the engine, determines a requested intake air flow of a cylinder of the engine based on the signal representing a driving condition of the engine and the target A/F, and determines control values for opening and closing operation of an intake valve based on the requested intake air flow and the target A/F. The control values include at least one of a valve opening timing, a valve opening time and a maximum valve lifting amount of the intake valve. Electric driving signals are generated according to the control values.

    摘要翻译: 对于发动机采用计算机可读程序代码的控制装置设置有响应于电驱动信号控制进气门的打开和关闭操作的电磁致动器。 该设备基于与所请求的发动机输出值相对应的信号和表示发动机的行驶状态的信号来确定目标A / F,基于表示驾驶状况的信号来确定发动机气缸的所请求的进气流量 以及根据要求的进气量和目标A / F确定进气门的开闭动作的控制值。 控制值包括进气门的开阀正时,开阀时间和最大阀提升量中的至少一个。 根据控制值产生电驱动信号。

    Cylinder fuel injection engine controller
    16.
    发明授权
    Cylinder fuel injection engine controller 失效
    气缸燃油喷射发动机控制器

    公开(公告)号:US5904128A

    公开(公告)日:1999-05-18

    申请号:US16310

    申请日:1998-01-30

    摘要: A cylinder fuel injection engine controller for controlling a cylinder fuel injection engine is capable of controlling the cylinder fuel injection engine for operation at a stable idling speed regardless of the variation of engine speed and load on the cylinder fuel injection engine while the cylinder fuel injection engine is cold and stratified combustion is impossible. The cylinder fuel injection engine controller comprises: a basic fuel injection quantity determining means for determining a basic fuel injection quantity (Tp1), a reference fuel injection quantity determining means for determining a reference fuel injection quantity (Tp2) from an engine speed and an accelerator pedal position; and a target fuel injection quantity calculating means for determining a target fuel injection quantity (Tp3) by multiplying the reference fuel injection quantity (Tp2) by a desired A/F ratio and dividing the product of the multiplication by the stoichiometric A/F ratio. The cylinder fuel injection engine controller is characterized by a reference fuel injection quantity adjusting means for adjusting the reference fuel injection quantity (Tp2) for engine speed control and/or load correction during idling operation. Fuel injection quantity (Tp) to be supplied to the engine and intake air quantity (Q) are controlled simultaneously and separately on the basis of the reference fuel injection quantity (Tp2).

    摘要翻译: 用于控制气缸燃料喷射发动机的气缸燃料喷射发动机控制器能够控制气缸燃料喷射发动机在稳定的空转速度下操作,而与发动机转速和气缸燃料喷射发动机上的负载的变化无关,而气缸燃料喷射发动机 是冷和分层燃烧是不可能的。 气缸燃料喷射发动机控制器包括:基本燃料喷射量确定装置,用于确定基本燃料喷射量(Tp1);基准燃料喷射量确定装置,用于根据发动机转速和加速器确定参考燃料喷射量(Tp2) 踏板位置 以及目标燃料喷射量计算装置,用于通过将参考燃料喷射量(Tp2)乘以期望的A / F比并将乘积乘以化学计量的A / F比来确定目标燃料喷射量(Tp3)。 气缸燃料喷射发动机控制器的特征在于用于在怠速运转期间调整用于发动机转速控制和/或负载校正的参考燃料喷射量(Tp2)的参考燃料喷射量调节装置。 基于参考燃料喷射量(Tp2)同时且分开地控制供给发动机的燃料喷射量(Tp)和进气量(Q)。

    Apparatus for controlling internal combustion engine
    17.
    发明授权
    Apparatus for controlling internal combustion engine 失效
    用于控制内燃机的设备

    公开(公告)号:US5577383A

    公开(公告)日:1996-11-26

    申请号:US351167

    申请日:1994-11-30

    摘要: An apparatus for purifying an exhaust gas emitted from an internal combustion engine, particularly, immediately after starting of the engine, includes a mechanism for reducing the time required to heat a catalyst converter to the activation temperature. The exhaust gas is passed through a preliminary catalyst close to the engine and then through a main catalyst downstream of the catalyst. The engine is operated with an air-fuel mixture which is richer than the amount indicated by the stoichiometric air/fuel ratio for a period of time from when engine is started until the main catalyst is heated to a temperature at which the catalyst can sufficiently perform its purifying capability. The preliminary catalyst is enabled to function at lower temperatures by combusting the exhaust gas which is generated during a rich air-fuel mixture condition. The main catalyst can be heated with the generated combustion heat, resulting in an enhancement in exhaust gas purifying capability.

    摘要翻译: 一种用于净化从内燃机排出的排气的装置,特别是在发动机起动之后,包括用于将催化剂转化器加热至活化温度所需的时间的机构。 废气通过靠近发动机的预催化剂,然后通过催化剂下游的主催化剂。 发动机运行时,空气燃料混合物比从发动机起动直到主催化剂加热到催化剂能够充分运行的温度的时间段内的化学计量空气/燃料比所表示的量更丰富 其净化能力。 通过燃烧在富空燃混合条件下产生的废气,预催化剂能够在较低温度下起作用。 可以利用产生的燃烧热来加热主催化剂,从而提高废气净化能力。

    Method and controller for supplying fuel to cylinders of multicylinder
internal combustion engine
    18.
    再颁专利
    Method and controller for supplying fuel to cylinders of multicylinder internal combustion engine 失效
    向多缸内燃机气缸供油的方法和控制器

    公开(公告)号:USRE35195E

    公开(公告)日:1996-04-02

    申请号:US89647

    申请日:1993-07-12

    摘要: A method and a controller for supplying a fuel to a plurality of cylinders of an internal combustion engine, in which engine operation conditions including the operating temperature of the engine are detected by various sensors attached to the engine and by using a microcomputer, and the fuel is successively supplied by being injected to the engine cylinders based on the detected engine operation conditions. The timing of fuel injection into each of the plurality of cylinders is . .shifted from an exhaust stroke period to a suction stroke period according to the operating temperature of the engine among the detected engine operation conditions.!. .Iadd.set in a suction stroke period at the time of the engine starting in a low temperature condition, and is shifted to an exhaust stroke period as the level of the engine temperature rises.Iaddend..

    摘要翻译: 一种用于向内燃机的多个气缸供给燃料的方法和控制器,其中包括发动机的工作温度的发动机运行条件由安装在发动机上的各种传感器和使用微型计算机检测,燃料 基于检测到的发动机运转状况,依次向发动机气缸喷射。 燃料喷射到多个气缸中的每个的燃料喷射时间是在设定在吸入冲程期间的发动机运转状态下根据发动机的运转温度从排气冲程时段到吸入冲程时间 发动机在低温条件下起动,并随着发动机温度升高而转移到排气行程周期。

    Apparatus for controlling the electric heating of catalyst
    19.
    发明授权
    Apparatus for controlling the electric heating of catalyst 失效
    用于控制催化剂电加热的装置

    公开(公告)号:US5390493A

    公开(公告)日:1995-02-21

    申请号:US10620

    申请日:1993-01-28

    IPC分类号: F01N3/20 F01N9/00 F01N3/28

    摘要: A catalyst heating control device for cleaning automotive engine exhaust gases, comprising a generator, at least one battery, a catalyst heating control apparatus, a battery charging device and an electronic fuel injector. Before starting the engine, the catalyst is preheated. At the start of the engine, the catalyst preheat control is curtailed according to the state of the batteries. The catalyst current control is performed by detecting the catalyst activation temperature. The catalyst is heated usually to about 350.degree. C., at which point the current supply for heating is terminated.

    摘要翻译: 一种用于清洁汽车发动机废气的催化剂加热控制装置,包括发电机,至少一个电池,催化剂加热控制装置,电池充电装置和电子燃料喷射器。 在起动发动机之前,催化剂被预热。 在发动机起动时,催化剂预热控制根据电池的状态而减少。 通过检测催化剂活化温度来进行催化剂电流控制。 将催化剂通常加热至约350℃,此时终止加热的电流供应。

    Fuel injection controlling method for an internal combustion engine
    20.
    发明授权
    Fuel injection controlling method for an internal combustion engine 失效
    一种用于内燃机的燃料喷射控制方法

    公开(公告)号:US4723524A

    公开(公告)日:1988-02-09

    申请号:US931041

    申请日:1986-11-17

    摘要: In a fuel injection controlling method for an internal combustion engine having the hot were air flow meter and the valve opening pulse generating means for a fuel increment independently of the basic valve opening pulse generating means for causing the injector to inject fuel normally during the normal condition, the valve opening pulse for a fuel increment has a duration dependent on at least one of selected from variations in the air intake volume per unit time, a closing signal of the idle switch for the throttle valve, a signal indicating the number of revolutions of the engine, etc., independently of the duration of the basic valve opening pulse. The acceleration adjustment is adjusted the fuel increment in accordance with the valve opening pulse for a fuel increment. It is possible to obtain optimum acceleration by varying the adjustment depending on conditions for interrupt adjustment during acceleration. By applying the judgment of conditions for adjustment after fuel reduction for deceleration, it has become possible to acceleration matching between the state after deceleration and the state after normal operation.

    摘要翻译: 在具有热量的内燃机的燃料喷射控制方法中,具有空气流量计和独立于基本开阀脉冲发生装置的燃料增量的开阀脉冲发生装置,用于使喷射器在正常状态下正常地喷射燃料 用于燃料增量的开阀脉冲的持续时间取决于从每单位时间的进气体积的变化中选择的至少一个,节气门的怠速开关的关闭信号,指示转速的信号 发动机等,独立于基本开阀脉冲的持续时间。 根据用于燃料增量的开阀脉冲来调整加速度调节燃料增量。 通过根据加速时的中断调整条件改变调整,可以得到最佳的加速度。 通过对减速后的调整条件进行判断,可以加速减速后的状态与正常运转后的状态的加速匹配。