公开(公告)号：US20040107944A1

公开(公告)日：2004-06-10

申请号：US10725664

申请日：2003-12-02

申请人： Isuzu Motors Limited

发明人： Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

IPC分类号： F02M001/00

CPC分类号： F02D41/3836 ,  F02D41/3845 ,  F02D2041/1432 ,  F02D2200/0602 ,  F02D2250/04 ,  F02D2250/14

摘要： The detected values of a common rail pressure that were detected by a pressure sensor are read within crank angle periods nullt which are at least not more than half of a pumping cycle nullT of a supply pump, the values detected within one pumping cycle preceding a reading time (for example, S(1), S(0), . . . S(null4)) are averaged during each of the reading times, and the value thus obtained (for example, Pav(1)) is used as a common rail pressure after averaging processing, which is a representative value or a control value of the actual common rail pressure. The feedback control of common rail pressure is executed by using the values of common rail pressure after averaging processing thus computed by moving averaging. Consequently, the actual common rail pressure is converted into values suitable for control, and the feedback control of common rail pressure is executed with higher accuracy.

摘要翻译： 在压力传感器检测到的共轨压力的检测值在曲轴角度周期Deltat内被读取，曲柄角周期Deltat至少不超过供应泵的泵送周期DeltaT的一半，在读数之前的一个泵送循环中检测到的值 时间（例如，S（1），S（0），... S（-4））在每个读取时间期间被平均，并且将由此获得的值（例如，Pav（1））用作 平均处理之后的共轨压力，其是实际共轨压力的代表值或控制值。 通过使用通过移动平均计算的平均化处理后的共轨压力值来执行共轨压力的反馈控制。 因此，将实际共轨压力转换为适合于控制的值，并且以更高的精度执行共轨压力的反馈控制。

公开(公告)号：US20040144362A1

公开(公告)日：2004-07-29

申请号：US10757811

申请日：2004-01-15

申请人： Isuzu Motors Limited

发明人： Futoshi Nakano ,  Koichiro Yomogida ,  Yuji Sasaki

IPC分类号： F02D041/30

CPC分类号： F02D41/1402 ,  F02D31/007 ,  F02D2041/1409 ,  F02D2041/1422 ,  F02D2041/2048

摘要： A fuel injection quantity control device for controlling an actual revolution speed En of an engine to a target revolution speed Eo, comprises difference computation unit for subtracting the actual revolution speed En from the target revolution speed Eo and finding the difference e therebetween; proportional term computation unit for multiplying the aforesaid difference e by the prescribed proportionality constant Kp and finding a proportional term output value Qp; integral term computation means for finding an integral term output value Qi which is obtained by integrating the product of the aforesaid difference e and the prescribed integration constant Ki; differential term computation unit for finding a differential term output value Qd which is obtained by multiplying the value obtained by differentiating the aforesaid difference e by the prescribed differentiation constant Kd; and injection quantity computation unit for adding up the proportional term output value Qp and the integral term output value Qi and determining the injection quantity.

摘要翻译： 用于将发动机的实际转速En控制为目标转速Eo的燃料喷射量控制装置包括：差分计算单元，用于从目标转速Eo中减去实际转速En，并求出其间的差e; 比例项计算单元，用于将上述差e乘以规定的比例常数Kp，并求出比例项输出值Qp; 积分项计算装置，用于求出通过将上述差值e的积与规定的积分常数Ki进行积分而得到的积分项输出值Qi; 差分项计算单元，用于找到通过将通过将上述差值e区分所得到的值乘以规定的微分常数Kd而获得的微分项输出值Qd; 以及喷射量计算单元，用于将比例项输出值Qp和积分项输出值Qi相加，并确定喷射量。

公开(公告)号：US20040133334A1

公开(公告)日：2004-07-08

申请号：US10741286

申请日：2003-12-18

申请人： Isuzu Motors Limited

发明人： Futoshi Nakano ,  Koichiro Yomogida ,  Yuji Sasaki

IPC分类号： G06F007/00

CPC分类号： F02D41/402 ,  Y02T10/44

摘要： A fuel injection control device for executing multiple injection includes first means for determining the total injection quantity of fuel (Qtotal), second means for determining base injection quantities (QBsub) of each auxiliary injection, and third means which, when the sum (QBsubtotal) of base injection quantities (Qsub) of each of auxiliary injections is not larger than the value obtained by multiplying the total injection quantity (Qtotal) by a coefficient (K) (0

摘要翻译： 用于执行多次喷射的燃料喷射控制装置包括用于确定燃料的总喷射量（Qtotal）的第一装置，用于确定每个辅助喷射的基本喷射量（QBsub）的第二装置，以及当第三装置（QBsubtotal） 每次辅助喷射的基准喷射量（Qsub）不大于通过将总喷射量（Qtotal）乘以系数（K）（0

公开(公告)号：US20040112340A1

公开(公告)日：2004-06-17

申请号：US10731351

申请日：2003-12-09

申请人： Isuzu Motors Limited

发明人： Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

IPC分类号： F02M037/04

CPC分类号： F02D41/3845 ,  F02D41/3809 ,  F02D2041/2027 ,  F02M59/34 ,  F02M59/466 ,  F02M63/004

摘要： The common rail fuel injection control device in accordance with the present invention computes a base duty (A) equivalent to a base target opening degree of a metering valve and a correction coefficient (B) based on the engine operation state, adds the value obtained by multiplying an oscillation duty (C) which oscillates periodically by the correction coefficient (B) to the base duty (A), and determines the final duty (D) equivalent to a final target opening degree of the metering valve.

摘要翻译： 根据本发明的共轨燃料喷射控制装置基于发动机运转状态计算与计量阀的基本目标开度相等的基本负荷（A）和校正系数（B），将由 将周期性振荡校正系数（B）的振荡负荷（C）乘以基准负荷（A），并确定与计量阀的最终目标开度相当的最终占空比（D）。