Apparatus for controlling boost pressure in turbocharged internal
combustion engines
    1.
    发明授权
    Apparatus for controlling boost pressure in turbocharged internal combustion engines 失效
    用于控制涡轮增压内燃机中增压的装置

    公开(公告)号:US4788822A

    公开(公告)日:1988-12-06

    申请号:US74604

    申请日:1987-07-17

    CPC分类号: F02B37/18 Y02T10/144

    摘要: A method of and an apparatus for controlling boost pressure in a turbocharged internal combustion engine. A turbine disposed in the engine exhaust passage is driven by exhaust gas and in turn drives a compressor disposed in the engine air intake passage, thus boosts the engine combustion chamber by delivering pressurized air thereto. The boost pressure is reduced when the actual ignition timing becomes more retarded than a reference ignition timing. The reference ignition timing is varied in proportion to an engine speed and/or an intake air pressure. Since the decision whether or not to reduce the boost pressure is based on the ignition timing actually being applied to the engine, no risk of damage to the engine arises and unnecessary reduction of engine output can be reliably prevented, enabling the engine to operate with optimum performance.

    摘要翻译: 一种用于控制涡轮增压内燃机中的增压压力的方法和装置。 设置在发动机排气通道中的涡轮机被排气驱动,并且驱动设置在发动机进气通道中的压缩机,从而通过向其发送加压空气来增压发动机燃烧室。 当实际点火正时比参考点火正时延迟时,增压压力降低。 参考点火正时与发动机转速和/或进气压力成比例地变化。 由于是否降低增压压力的决定是基于实际施加到发动机的点火正时,不会发生损坏发动机的风险,并且可以可靠地防止发动机输出的不必要的降低,使得发动机能够以最佳 性能。

    Control system for ignition timing and boost pressure in internal
combustion engine
    2.
    发明授权
    Control system for ignition timing and boost pressure in internal combustion engine 失效
    内燃机点火正时和增压压力控制系统

    公开(公告)号:US4882695A

    公开(公告)日:1989-11-21

    申请号:US109363

    申请日:1987-10-19

    摘要: A control system for ignition timing and boost pressure in an internal combustion engine equipped with a turbocharger. The system has a device for detecting knocking in the respective cylinders and the result of the detection by this a device is used as the basis for calculating the ignition timing for each cylinder. When the mean ignition timing calculated from the ignition timings for all cylinders exceeds a prescribed reference value, the boost pressure is reduced. Alternatively, the boost pressure is immediately reduced when the most retarded of the ignition timings exceeds the prescribed value in the direction of retardation, irrespective of whether or not the average value exceeds the prescribed value. As a result, reduction of engine output can be minimized while precluding damage to the engine.

    摘要翻译: 一种配备有涡轮增压器的内燃机的点火正时和增压压力的控制系统。 该系统具有用于检测各个气缸中的爆震的装置,并且通过该装置的检测结果将该装置用作计算每个气缸的点火正时的基础。 当从所有气缸的点火正时计算出的平均点火正时超过规定的基准值时,增压压力降低。 或者,无论平均值是否超过规定值,当点火正时的延迟最大时延在延迟方向上超过规定值时,增压压力立即降低。 因此,可以减少发动机输出,同时防止对发动机的损坏。

    Apparatus for controlling ignition timing in internal combustion
    3.
    发明授权
    Apparatus for controlling ignition timing in internal combustion 失效
    用于控制内燃点火正时的装置

    公开(公告)号:US4856480A

    公开(公告)日:1989-08-15

    申请号:US262049

    申请日:1988-10-24

    IPC分类号: F02P5/152

    CPC分类号: F02P5/1521 Y02T10/46

    摘要: An apparatus for controlling ignition timing in an internal combustion engine determines the amount of adjustment of ignition timing for preventing knocking with reference to the engine operating state. The amount of adjustment of the ignition timing carried out upon the detection of knocking is varied depending on the engine speed. Specifically, it is made large in the low speed region where the interval between successive firings is relatively long, thus increasing the speed with which knocking can be prevented and enhancing the protection of the engine from damage in this operating region. Also, rapid acceleration and other transient engine operating states are detected and a transient state adjustment is calculated separately of the adjustment amount for knocking prevention. The transient state adjustment is added to the knocking prevention adjustment and the result is used for retarding the ignition timing, whereby knocking can be effectively prevented during rapid acceleration. Further, after knocking has been prevented, the ignition timing is advanced with consideration given to reference knocking occurrence frequencies set independently for different engine operating conditions. Thus, the knocking occurrence frequency can be maintained at a fixed level irrespective of the engine operating condition, whereby the engine output can be optimized.

    摘要翻译: 用于控制内燃机中的点火正时的装置确定参照发动机运行状态来防止爆震的点火正时的调节量。 在检测到爆震时进行的点火正时调整量根据发动机转速而变化。 具体地说,在连续起动之间的间隔相对较长的低速区域中变得较大,从而增加了可以防止爆震的速度,并且增强了在该操作区域中发动机的损坏的保护。 此外,检测到快速加速和其他瞬态发动机操作状态,并且分别计算用于防止爆震的调节量的瞬态状态调整。 临时状态调整被添加到防止爆震调节中,结果用于延迟点火正时,从而可以在快速加速期间有效地防止爆震。 此外,在防止了爆震之后,考虑到针对不同的发动机运行条件独立设定的参考爆震发生频率,提高了点火正时。 因此,与发动机工作状态无关地,可以将爆震发生频率维持在固定水平,由此能够优化发动机输出。

    Method of and apparatus for controlling ignition timing in internal
combustion engine
    4.
    发明授权
    Method of and apparatus for controlling ignition timing in internal combustion engine 失效
    内燃机点火正时控制方法及装置

    公开(公告)号:US4790281A

    公开(公告)日:1988-12-13

    申请号:US74733

    申请日:1987-07-17

    IPC分类号: F02P5/152 F02P5/15

    摘要: A method of and an apparatus for controlling ignition timing in an internal combustion engine, which determines the ignition timing on the basis of the engine speed and load state, discriminates whether or not knocking has occurred on the basis of the output of a knocking detection circuit, retards the so-determined ignition timing by a predetermined amount when knocking occurs, and advances the ignition timing by a predetermined amount after knocking has been avoided. The maximum amount of retardation and advancement carried out upon occurrence of knocking is varied depending on one or more engine operating conditions, enabling the ignition timing to be controlled to near MBT and the engine output to be the maximum possible. The said engine operating condition or conditions include an engine speed in the case of compensation in the direction of ignition retardation and include an engine speed and a load state in the case of compensation in the direction of ignition advance.

    摘要翻译: 用于根据发动机转速和负载状态来确定点火正时的用于控制内燃机中的点火正时的方法和装置,基于爆震检测电路的输出来判断是否发生了爆震 在发生爆震时将所确定的点火正时延迟预定量,并且避免了在爆震之后将点火正时推进预定量。 发生爆震时进行的延迟和前进的最大量根据一个或多个发动机运转条件而变化,使点火正时被控制在接近MBT且发动机输出为最大可能。 所述发动机工作条件或条件包括在点火延迟方向上补偿的情况下的发动机转速,并且在点火提前方向补偿的情况下包括发动机转速和负载状态。

    Method of and apparatus for controlling ignition timing in internal
combustion engine
    5.
    发明授权
    Method of and apparatus for controlling ignition timing in internal combustion engine 失效
    内燃机点火正时控制方法及装置

    公开(公告)号:US4796586A

    公开(公告)日:1989-01-10

    申请号:US74606

    申请日:1987-07-17

    IPC分类号: F02P5/152 F02P5/15

    CPC分类号: F02P5/1521 Y02T10/46

    摘要: A method of and an apparatus for controlling ignition timing in an internal combustion engine. When the ignition timing has been retarded for preventing knocking and the engine operation thereafter moves into a region of operation where knocking control is unnecessary with the retardation of the ignition timing still in effect, the ignition timing is slightly advanced once per predetermined number of firings. Since the ignition timing is gradually restored, engine output hunting is prevented. The advancement of the ignition timing is determined whether or not a prescribed wait period has passed. The period varies depending on an engine speed.

    摘要翻译: 一种用于控制内燃机中的点火正时的方法和装置。 当点火正时被阻止以防止爆震,并且发动机操作之后移动到仍然有效的点火正时延迟的不需要进行爆震控制的操作区域中时,点火正时在预定数量的点火时稍微提高一次。 由于点火正时逐渐恢复,因此防止发动机输出振动。 确定点火正时的提前是否已经过了规定的等待时间。 该期间根据发动机转速而变化。

    Device for measuring a component of a gaseous mixture
    6.
    发明授权
    Device for measuring a component of a gaseous mixture 失效
    用于测量气体混合物的组分的装置

    公开(公告)号:US4905652A

    公开(公告)日:1990-03-06

    申请号:US361717

    申请日:1989-05-30

    CPC分类号: G01N27/417 G01N27/4065

    摘要: A device for detecting and measuring the concentration of a gas in a mixture of gas such as oxygen in the exhaust gas of an internal combustion engine and circuits for using that measurement to control the air-fuel ratio supplied to the engine. The detecting device has two separate gas residence chamber with different diffusion resistance openings for each chamber and separate pairs of electrodes for each chamber whereby the measurement can be separately made in each chamber. The particular chamber selected for measurement may be done on the basis of whether the air-fuel ratio is lean or rich whereby a substantially linear reading results for all ratios or on the basis of the transition-state or steady-state operating condition of the engine to provide either more rapid or more accurate readings. Further, by using the cells from both chambers to compare their readings and standards, the actual readings can be corrected for abnormalties that may occur after a period of use or to indicate the detector has become defective.

    摘要翻译: 一种用于检测和测量内燃机的废气中的诸如氧的气体混合物中的气体的浓度的装置以及用于使用该测量来控制提供给发动机的空燃比的电路。 检测装置具有两个单独的气体停留室,每个室具有不同的扩散阻力开口,并且每个室的单独的电极对,由此可以在每个室中单独制造测量。 选择用于测量的特定室可以基于空燃比是贫还是富还是进行,由此对于所有比例都基本上线性读数,或者基于发动机的过渡状态或稳态运行状态 以提供更快或更准确的读数。 此外,通过使用来自两个腔室的细胞来比较它们的读数和标准,可以对使用期间可能发生的异常或者指示检测器变得有缺陷的异常来校正实际读数。

    Method of air/fuel ratio control for internal combustion engine
    7.
    发明授权
    Method of air/fuel ratio control for internal combustion engine 失效
    内燃机空燃比控制方法

    公开(公告)号:US4788958A

    公开(公告)日:1988-12-06

    申请号:US42213

    申请日:1987-04-24

    摘要: A method of engine air/fuel ratio control using an oxygen concentration sensor producing a concentration-proportional output, in which a compensation value is computed for compensating a basic value such as a basic fuel injection time interval, and in which a deviation of an air/fuel ratio detected using the oxygen concentration sensor from a target air/fuel ratio is measured the compensation value is computed and updated only under the condition that the deviation is below a predetermined value, with the compensation value being determined in accordance with the amount of deviation.

    摘要翻译: 使用产生浓度比例输出的氧浓度传感器的发动机空燃比控制的方法,其中计算用于补偿诸如基本燃料喷射时间间隔的基本值的补偿值,并且其中空气的偏差 测量从目标空燃比使用氧浓度传感器检测的燃料比,仅在偏差低于预定值的条件下计算和更新补偿值,其中补偿值根据 偏差。

    System of abnormality detection for oxygen concentration sensor
    8.
    发明授权
    System of abnormality detection for oxygen concentration sensor 失效
    氧浓度传感器异常检测系统

    公开(公告)号:US4724815A

    公开(公告)日:1988-02-16

    申请号:US030493

    申请日:1987-03-27

    摘要: A system of abnormality detection for an oxygen concentration sensor employed to sense the oxygen concentration in engine exhaust gas for obtaining data to control the air/fuel ratio of a fuel mixture supplied to the engine. In which, the oxygen concentration sensor includes a sensor cell element, an oxygen pump element each formed of a pair of electrodes which sandwich a solid electrolytic member, and a heater element for heating the solid electrolytic member. The system functions to detect an abnormality of the heater element on the basis of the value of a voltage developed between the electrodes of the sensor cell element and an air/fuel ratio compensation value that is derived by sensing the exhaust gas oxygen concentration.

    摘要翻译: 一种氧浓度传感器的异常检测系统,用于检测发动机废气中的氧浓度,以获得控制供给发动机的燃料混合物的空燃比的数据。 其中,氧浓度传感器包括传感器单元元件,由一对夹着固体电解构件的电极形成的氧泵元件和用于加热固体电解构件的加热器元件。 该系统用于基于在传感器电池元件的电极之间产生的电压值和通过感测排气氧浓度导出的空气/燃料比补偿值来检测加热元件的异常。

    Method for controlling an oxygen concentration sensor
    10.
    发明授权
    Method for controlling an oxygen concentration sensor 失效
    用于控制氧浓度传感器的方法

    公开(公告)号:US4719895A

    公开(公告)日:1988-01-19

    申请号:US946402

    申请日:1986-12-23

    CPC分类号: G01N27/417 G01N27/4065

    摘要: A method for controlling an oxygen concentration sensor mounted on an engine, including oxygen ion conductive solid electrolyte members operative as an oxygen pump element and a sensor cell element respectively, a source of pump current to be supplied to the oxygen pump element, and a heater element for heating the oxygen pump element and the sensor cell element. The method includes an operation for detecting an engine temperature of a time immediately before the start of the supply of a drive current of the heater element, and a control operation for starting the supply of the pump current after an elapse of a time period determined in response to the engine temperature from the start of the supply of the drive current of the heater element.

    摘要翻译: 一种用于控制安装在发动机上的氧浓度传感器的方法,包括分别用作氧气泵元件和传感器电池元件的氧离子传导固体电解质元件,供应给氧气泵元件的泵浦电流源,以及加热器 用于加热氧气泵元件和传感器电池元件的元件。 该方法包括用于检测在开始供应加热器元件的驱动电流之前的时间内的发动机温度的操作,以及在经过确定的时间段之后开始供应泵电流的控制操作 从加热器元件的驱动电流的开始开始响应于发动机温度。