FUEL INJECTION CONTROL APPARATUS DESIGNED TO COMPENSATE FOR DEVIATION OF QUANTITY OF FUEL SPRAYED FROM FUEL INJECTOR
    21.
    发明申请
    FUEL INJECTION CONTROL APPARATUS DESIGNED TO COMPENSATE FOR DEVIATION OF QUANTITY OF FUEL SPRAYED FROM FUEL INJECTOR 有权
    燃油喷射控制装置设计用于补偿从燃油喷射器喷射的燃料量的偏差

    公开(公告)号:US20090030590A1

    公开(公告)日:2009-01-29

    申请号:US12174183

    申请日:2008-07-16

    IPC分类号: F02D41/30

    摘要: A fuel injection control apparatus for an internal combustion engine is provided. A controller directs a fuel injector to spray a learning injection quantity of fuel and determines a resulting increase in speed of the engine. The controller determines the quantity of the fuel actually sprayed from the fuel injector based on the increase in speed of the engine and calculates a correction factor which compensates for a difference between the learning injection quantity and the actual injection quantity. The controller also determines a variation in load acting on a driving member of a torque transmission mechanism. When such a variation is great undesirably, the controller stops spraying the learning injection quantity. The controller may determine the increase in speed of the engine based on the degree of the variation in load. This ensures the accuracy in calculating the correction factor regardless of the variation in load.

    摘要翻译: 提供一种用于内燃机的燃料喷射控制装置。 控制器引导燃料喷射器喷射学习喷射量的燃料并且确定所引起的发动机速度的增加。 控制器基于发动机的速度的增加来确定从燃料喷射器实际喷射的燃料的量,并计算补偿学习喷射量与实际喷射量之间的差的校正系数。 控制器还确定作用在转矩传递机构的驱动构件上的载荷的变化。 当这种变化非常大时,控制器停止喷射学习喷射量。 控制器可以基于负载变化的程度来确定发动机的速度的增加。 这确保了计算校正系数的准确性,而不管负载的变化如何。

    Valve control device reducing noise
    22.
    发明申请
    Valve control device reducing noise 有权
    阀门控制装置减少噪音

    公开(公告)号:US20060162693A1

    公开(公告)日:2006-07-27

    申请号:US11330118

    申请日:2006-01-12

    IPC分类号: F02M25/07 F02D11/10

    摘要: A valve control device corrects a change rate of an opening degree of a valve in accordance with engine rotation speed when deposit elimination operation is performed. The valve control device corrects an inclination between a positive maximum opening degree and a negative maximum opening degree of the valve in accordance with the engine rotation speed when the deposit elimination operation is performed. Thus, when the engine rotation speed is low and a noise accompanying the deposit elimination operation becomes more audible, the change rate of the opening degree of the valve is reduced. As a result, the noise accompanying the deposit elimination operation is reduced and annoyance for vehicle occupants is reduced.

    摘要翻译: 阀门控制装置根据执行沉积物消除操作时的发动机转速来校正阀的开度的变化率。 当执行沉积物消除操作时,阀控制装置根据发动机转速校正阀的正最大开度和负最大开度之间的倾斜度。 因此,当发动机转速低并且随着沉积物消除操作的噪声变得更可听见时,阀的开度的变化率降低。 结果,伴随着沉积物消除操作的噪音减少,车辆乘客的烦恼减少。

    Fuel injection control apparatus
    23.
    发明授权
    Fuel injection control apparatus 有权
    燃油喷射控制装置

    公开(公告)号:US07664592B2

    公开(公告)日:2010-02-16

    申请号:US12146173

    申请日:2008-06-25

    IPC分类号: F02D41/04

    摘要: The fuel injection control apparatus includes a function of making a determination of whether learning conditions are satisfied to allow a fuel injection amount learning to be performed, a function of directing a commanded fuel injection amount in the fuel injection amount learning to a fuel injection valve if result of the determination is affirmative, a function of setting an upper limit value of an injection pressure in the fuel injection amount learning, a function of setting a target injection pressure in the fuel injection amount learning, a function of setting the injection pressure to the target injection pressure, a function of detecting an actual fuel injection amount, and a function of correcting an amount of fuel injected by the fuel injection valve on the basis of a difference between the commanded fuel injection amount and the actual fuel injection amount at the target injection pressure.

    摘要翻译: 燃料喷射控制装置具有确定是否满足学习条件以允许执行燃料喷射量学习的功能,将燃料喷射量学习中的命令燃料喷射量指向燃料喷射阀的功能,如果 确定的结果是肯定的,设定燃料喷射量学习中的喷射压力的上限值,设定燃料喷射量学习中的目标喷射压力的功能的功能,将喷射压力设定为 目标喷射压力,检测实际燃料喷射量的功能,以及基于所述指令燃料喷射量与所述目标的实际燃料喷射量之间的差异来校正由所述燃料喷射阀喷射的燃料量的功能 注射压力。

    Fuel injection controller for engine

    公开(公告)号:US07363912B2

    公开(公告)日:2008-04-29

    申请号:US11822050

    申请日:2007-07-02

    IPC分类号: F02M7/00 F02D41/00

    摘要: A fuel injection controller calculates a difference between a rotation speed fluctuation amount of an engine in the case where an injection for learning is performed and the rotation speed fluctuation amount in the case where the injection for the learning is not performed as a rotation speed increase amount. The controller calculates an actual injection amount actually injected from an injector based on a rotation state of the engine. The controller calculates a difference between the actual injection amount and a command injection amount outputted to the injector as a characteristic deviation and corrects the command injection amount to reduce the characteristic deviation. The controller prohibits the correction of the command injection amount when a variation in the rotation speed increase amount is equal to or greater than a specified value.

    Piezo actuator drive circuit
    25.
    发明授权
    Piezo actuator drive circuit 有权
    压电致动器驱动电路

    公开(公告)号:US07034437B2

    公开(公告)日:2006-04-25

    申请号:US10780697

    申请日:2004-02-19

    IPC分类号: H01L41/08

    CPC分类号: H01L41/042 F02D41/2096

    摘要: A piezo actuator drive circuit comprises a charging path for charging a piezo stack that can be driven by being charged and discharged, an arithmetic circuit for calculating the charging amount for the piezo stack, and a driving control circuit for comparing the calculated charging amount and a target charging amount and correcting the charging amount during the next charging process according to the difference between the compared charging amounts. A charging current flowing through the piezo stack and a charging voltage applied to it may be measured during a charging process. It is preferable that the calculated charging amount be the amount of energy that is the result of the time quadrature of the product of the measured current and voltage.

    摘要翻译: 压电致动器驱动电路包括用于对可以通过充电和放电驱动的压电叠层进行充电的充电路径,用于计算压电叠层的充电量的运算电路和用于将计算的充电量与 目标充电量,并根据比较充电量之间的差异,在下次充电过程中对充电量进行校正。 可以在充电过程中测量流过压电叠层的充电电流和施加到其上的充电电压。 优选地,所计算的充电量是作为测量的电流和电压的乘积的时间正交的结果的能量的量。

    Fuel injection control system for engine
    26.
    发明授权
    Fuel injection control system for engine 有权
    发动机燃油喷射控制系统

    公开(公告)号:US06907864B2

    公开(公告)日:2005-06-21

    申请号:US10643088

    申请日:2003-08-19

    申请人: Eiji Takemoto

    发明人: Eiji Takemoto

    摘要: An engine control unit (ECU) of an internal combustion engine performs energy changing control for changing a charging amount (an upper limit value of charging voltage, charging speed or target energy) to a piezo stack of a piezo injector in accordance with common rail pressure. During the energy changing control, the ECU contracts a command injection period as the target energy charged to the piezo stack increases so that actual injection end timing or valve closing timing of a nozzle portion is unchanged even if the target energy is changed. Meanwhile, the ECU delays command injection timing as the target energy increases so that actual injection start timing or valve opening timing of the nozzle portion is unchanged even if the target energy is changed.

    摘要翻译: 内燃机的发动机控制单元(ECU)执行用于根据共轨压力将充电量(充电电压,充电速度或目标能量的上限值)改变为压电喷射器的压电叠层的能量变化控制 。 在能量转换控制期间,当压电堆叠的目标能量增加时,ECU收缩指令喷射周期,使得即使目标能量改变,喷嘴部分的实际喷射结束正时或阀关闭正时也不变。 同时,当目标能量增加时,ECU延迟指令喷射正时,使得即使目标能量改变,喷嘴部分的实际喷射开始正时或开阀定时也不变。

    Exhaust gas recirculation system for internal combustion engine
    28.
    发明授权
    Exhaust gas recirculation system for internal combustion engine 有权
    内燃机排气再循环系统

    公开(公告)号:US07926272B2

    公开(公告)日:2011-04-19

    申请号:US11950805

    申请日:2007-12-05

    申请人: Eiji Takemoto

    发明人: Eiji Takemoto

    IPC分类号: F02B33/44 F02M25/06 F02M25/07

    摘要: A low pressure EGR system includes a low pressure EGR passage connecting a downstream portion of an exhaust gas cleaner disposed in an exhaust passage to an upstream portion of a supercharger compressor disposed in an intake passage. A device for trapping foreign particles contained in EGR gas to be recirculated is disposed in the low pressure EGR passage. The trapping device may be positioned lower than the passage connected thereto so that foreign particles drop into the device by their own weight. A cross-sectional area of the trapping device may be made larger than that of the passage so that the flow speed of the EGR gas is reduced in the trapping device and the foreign particles are easily trapped. A valve for closing the low pressure EGR passage may be disposed therein to stop EGR when malfunctions are detected in the exhaust gas cleaner or the supercharger.

    摘要翻译: 低压EGR系统包括将布置在排气通道中的排气净化器的下游部分连接到设置在进气通道中的增压压缩机的上游部分的低压EGR通路。 用于捕集包含在要再循环的EGR气体中的异物的装置设置在低压EGR通路中。 捕集装置可以定位成低于与其连接的通道,使得外来颗粒通过其自身的重量落入装置中。 捕集装置的截面积可以大于通道的横截面面积,使得在捕集装置中EGR气体的流速减小,并且外来颗粒容易被捕获。 在排气净化器或增压器中检测到故障时,用于关闭低压EGR通道的阀可以设置在其中以便停止EGR。

    LOW PRESSURE EXHAUST GAS RECIRCULATION APPARATUS
    29.
    发明申请
    LOW PRESSURE EXHAUST GAS RECIRCULATION APPARATUS 有权
    低压排气回收装置

    公开(公告)号:US20110023846A1

    公开(公告)日:2011-02-03

    申请号:US12845067

    申请日:2010-07-28

    IPC分类号: F02M25/07 F02B47/08

    摘要: A low pressure EGR regulating valve is driven by an electric actuator, and an output of the electric actuator is transmitted to an intake air throttle valve through a link device. An ECU executes a failure determination to determine presence of a failure in a case where a sensed opening degree, which is sensed with a low pressure EGR opening degree sensor, is other than an opening degree that corresponds to a maximum opening degree of the throttle valve limited by a mechanical stopper. The ECU executes the failure determination after the energization of the electric actuator is stopped in response to stopping of the engine.

    摘要翻译: 低压EGR调节阀由电致动器驱动,电致动器的输出通过连​​杆装置传递到进气节流阀。 在用低压EGR开度传感器检测到的感测到的开度不同于对应于节流阀的最大开度的开度的情况下,ECU执行故障判定以确定故障的存在 受机械塞限制。 响应于发动机的停止,电动执行器的通电停止后ECU执行故障确定。

    Injection quantity controller for an internal combustion engine
    30.
    发明申请
    Injection quantity controller for an internal combustion engine 失效
    内燃机喷油量控制器

    公开(公告)号:US20050107943A1

    公开(公告)日:2005-05-19

    申请号:US10973441

    申请日:2004-10-27

    摘要: The present invention performs an injection quantity learning process with only data acquired within a prescribed time. When the number of pieces of accumulated data reaches a prescribed count, a controller determines whether a time difference between when an oldest piece of data was acquired and when a latest piece of data was acquired is less than the prescribed time. When the difference is less than the prescribed time, the controller corrects a command quantity based on the prescribed number of pieces of data. According to this method, when the injection quantity is corrected, old data having been acquired before the prescribed time is discarded and the command quantity is corrected using only the prescribed number of pieces of data having acquired within the prescribed time, thereby enhancing learning accuracy.

    摘要翻译: 本发明仅在规定时间内获取的数据进行喷射量学习处理。 当累计数据的数量达到规定的计数时,控制器判断是否获取了最旧的数据之间的时间差与获取的最新的数据之间的时间差是否小于规定的时间。 当差小于规定时间时,控制器基于规定数量的数据来校正指令量。 根据该方法,当校正喷射量时,在规定时间之前已经获取的旧数据被丢弃,并且仅使用在规定时间内获取的规定数量的数据来校正指令量,从而提高学习精度。