Vehicle drive power control apparatus, and control method
    92.
    发明授权
    Vehicle drive power control apparatus, and control method 失效
    车辆驱动电源控制装置及控制方法

    公开(公告)号:US06401022B2

    公开(公告)日:2002-06-04

    申请号:US09861620

    申请日:2001-05-22

    IPC分类号: B60K4112

    摘要: A vehicle drive power control apparatus and method control the speed ratio of a transmission based on a speed shift line that is set so that, within a practical region, the speed shift line is in a low revolution speed side of an optimal fuel consumption line determined based on the efficiency of the engine and the efficiency of the transmission. Therefore, the width of increase in revolution speed from the speed occurring at the beginning of the practical region is curbed. Hence, the fuel consumption resulting from inertia torques caused by fluctuations in engine revolution speed, that is, fluctuations in the revolution speed of the input shaft of the transmission and a fluidic power transfer mechanism, is reduced, so that the efficiency as a whole increases and the fuel economy improves in comparison with the case where the optimal fuel consumption line is used as a control basis.

    摘要翻译: 一种车辆用驱动力控制装置和方法,其基于设定为使得在实际区域内的变速线处于确定的最佳燃料消耗线的低转速侧的变速线来控制变速器的速比 基于发动机的效率和传动效率。 因此,抑制了从实际区域开始时发生的速度的转速的增加的宽度。 因此,由于发动机转速的波动,即变速器的输入轴的转速的波动和流体动力传递机构引起的惯性力矩导致的燃料消耗减少,使得整体的效率增加 与以最佳燃料消耗线为对照的情况相比,燃料经济性提高。

    Apparatus for detecting concentration of vapor fuel in lean-burn internal combustion engine, and applied apparatus thereof

    公开(公告)号:US06325052B1

    公开(公告)日:2001-12-04

    申请号:US09276529

    申请日:1999-03-25

    申请人: Zenichiro Mashiki

    发明人: Zenichiro Mashiki

    IPC分类号: F02M3302

    摘要: An apparatus for detecting a concentration of a vapor fuel in a lean-burn internal combustion engine includes a module for performing purge concentration learning when in a lean-burn where an air/fuel ratio sensor does not sufficiently work. When detecting the concentration of the vapor fuel during a lean-burn operation of the internal combustion engine, the internal combustion engine is switched over to a homogeneous combustion operation from a lean-burn operation, and the concentration of the vapor fuel is detected under the homogeneous combustion operation. Alternatively, the combustion is switched over to the homogeneous combustion when in a rich spike and when ensuring a brake negative pressure, and hence the concentration of the vapor fuel is detected by utilizing this timing. The thus detected and learned concentration of the vapor fuel is utilized for the purge control when in the lean-burn.

    Apparatus and method for controlling fuel injection in internal
combustion engine
    96.
    发明授权
    Apparatus and method for controlling fuel injection in internal combustion engine 失效
    用于控制内燃机燃油喷射的装置和方法

    公开(公告)号:US5848580A

    公开(公告)日:1998-12-15

    申请号:US992110

    申请日:1997-12-17

    申请人: Zenichiro Mashiki

    发明人: Zenichiro Mashiki

    摘要: An improved apparatus and method for controlling fuel injection in an internal combustion engine. An EGR passage is connected to an intake duct for supplying exhaust gas, which has been discharged from a combustion chamber, to the intake duct. An EGR valve is located in the EGR passage to adjust the flow rate of the exhaust gas supplied to the intake duct from the EGR passage. An acceleration pedal adjusts the flow rate of the air supplied to the combustion chamber. An ECU computes the amount of fuel to be injected from a fuel injection valve based on the depression degree of the acceleration pedal and the engine speed when the exhaust gas is supplied to the intake duct from the EGR passage. The ECU computes the amount of fuel to be injected from the fuel injection valve based on the intake pressure and the engine speed when the exhaust gas is not supplied to the intake duct from the EGR passage. The ECU controls the fuel injection valve based on the computed fuel injection amount. This prevents intake air fluctuations caused by exhaust gas recirculation from affecting the computed fuel injection amount.

    摘要翻译: 一种用于控制内燃机中的燃料喷射的改进的装置和方法。 EGR通道连接到进气管道,用于将已经从燃烧室排出的废气供应到进气管道。 EGR阀位于EGR通道中以调节从EGR通道供应到进气管道的废气的流量。 加速踏板调节供给到燃烧室的空气的流量。 ECU根据加速踏板的下压度和从EGR通路向排气供给排气时的发动机转速,计算从燃料喷射阀喷射的燃料量。 ECU从排气不从EGR通路供给到进气管道时,基于进气压力和发动机转速,计算从燃料喷射阀喷射的燃料量。 ECU根据计算出的燃料喷射量控制燃料喷射阀。 这防止由废气再循环引起的进气扰动影响计算出的燃料喷射量。