利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.015 秒)

    Navigation system furnished with means for estimating error of mounted sensor
    2.
    发明公开
    Navigation system furnished with means for estimating error of mounted sensor 失效
    安装在具有用于估计一个传感器的误差导航系统

    公开(公告)号：EP0715150A1

    公开(公告)日：1996-06-05

    申请号：EP94118762.7

    申请日：1994-11-29

    申请人： Xanavi Informatics Corporation ,  HITACHI, LTD.

    发明人： Hoshino, Masatoshi ,  Oho, Shigeru ,  Gunji, Yasuhiro ,  Kuroda, Hiroshi ,  Takano, Kenji ,  Nagashima, Yoshimasa ,  Onari, Mikihiko

    IPC分类号： G01C21/20 ,  G01C21/16 ,  H01Q1/12

    CPC分类号： H01Q1/1257 ,  G01C21/165 ,  G01C21/28

    摘要： A navigation system which can enhance the position determining accuracy of a mobile object without employing any high precision measuring instrument. The navigation system comprises a GPS range measuring device (101 in Fig. 1), an angular velocity measuring device (102), a velocity measuring device (103) and an azimuth measuring device (104), which measure the motion of the mobile object; a GPS range error estimating device (105), an angular velocity error estimating device (106), a velocity, error estimating device (107) and an azimuth error estimating device (108), which estimate errors involved in the respectively corresponding measuring devices; and a position calculating device (109) which calculates the position of the mobile object from the outputs of the error estimating devices. The error estimating devices are implemented by Kalman filters and averaging processes. The factors of the errors of the individual measuring devices are assumed, and the outputs thereof are corrected, so that the position of the mobile object can always be determined at a high accuracy without employing any high precision sensor.

    摘要翻译： 一种导航系统，其能够提高移动体的位置确定性采矿精度而没有任何用人高精度测量仪器。 该导航系统包括GPS测距装置（101 1中所示）上的角速度测定装置（102），速度测量装置（103），并在方位角测量装置（104），测量移动物体的运动 ; 一个GPS误差范围估计装置（105），以角速度误差估计装置（106），速度，误差估计装置（107）和到方位角误差估计装置（108），估计在分别对应的测量装置涉及的错误; 以及位置计算装置（109），其计算所述移动物体的从误差估计装置的输出的位置。 估计装置的误差是通过卡尔曼滤波器和平均化处理来实现。 各个测量设备的误差的因素被假定，并且其输出被校正的，所以没有移动物体的位置可以总是确定性的开采以高精度而没有任何用人高精度传感器。

    Control method for a fuel injection engine
    5.
    发明公开
    Control method for a fuel injection engine 失效
    燃油喷射发动机的控制方法

    公开(公告)号：EP0184626A3

    公开(公告)日：1986-08-27

    申请号：EP85112425

    申请日：1985-10-01

    申请人： HITACHI, LTD.

    发明人： Sekozawa, Teruji ,  Shioya, Makoto ,  Funabashi, Motohisa ,  Onari, Mikihiko ,  Shida, Masami

    IPC分类号： F02D41/34 ,  F02D41/10 ,  F02D41/26

    CPC分类号： F02D41/047

    摘要： The fuel injection quantity required for maintaining the air-fuel ratio of the mixture supplied to each cylinder of an engine (10) at a desired value is determined by calculating from sensor data a deposition rate X at which injected fuel deposits and forms film mass on an intake manifold wall (21) of the engine and a vaporization rate 1/ T at which the film mass vaporizes from the manifold wall, calculating a current film mass quantity M, from the calculated X and 1/ T and the fuel quantity by the preceding injection, calculating a desired fuel quantity Q a /(A/F) to be supplied to the cylinder from an intake air flow Q. and a desired air-fuel ratio A/F and determining a current fuel injection quantity G f from the calculation results in accordance with the following equation Also, an accurate film mass quantity estimation is accomplished by subtracting a calculated value of a carry-over fuel quantity to be delivered to the cylinder from the film mass quantity estimated during the preceding period and adding a calculated value of a wall deposition fuel quantity per period obtained on the basis of an actual fuel injection quantity per stroke of the engine to the remaining film mass quantity thereby estimating a current film mass quantity.

    Control method for a fuel injection engine
    6.
    发明公开
    Control method for a fuel injection engine 失效
    Steuerverfahrenfüreinen Motor mit Kraftstoffeinspritzung。

    公开(公告)号：EP0184626A2

    公开(公告)日：1986-06-18

    申请号：EP85112425.5

    申请日：1985-10-01

    申请人： HITACHI, LTD.

    发明人： Sekozawa, Teruji ,  Shioya, Makoto ,  Funabashi, Motohisa ,  Onari, Mikihiko ,  Shida, Masami

    IPC分类号： F02D41/34 ,  F02D41/10 ,  F02D41/26

    CPC分类号： F02D41/047

    摘要： The fuel injection quantity required for maintaining the air-fuel ratio of the mixture supplied to each cylinder of an engine (10) at a desired value is determined by calculating from sensor data a deposition rate X at which injected fuel deposits and forms film mass on an intake manifold wall (21) of the engine and a vaporization rate 1/ T at which the film mass vaporizes from the manifold wall, calculating a current film mass quantity M, from the calculated X and 1/ T and the fuel quantity by the preceding injection, calculating a desired fuel quantity Q a /(A/F) to be supplied to the cylinder from an intake air flow Q. and a desired air-fuel ratio A/F and determining a current fuel injection quantity G f from the calculation results in accordance with the following equation
    Also, an accurate film mass quantity estimation is accomplished by subtracting a calculated value of a carry-over fuel quantity to be delivered to the cylinder from the film mass quantity estimated during the preceding period and adding a calculated value of a wall deposition fuel quantity per period obtained on the basis of an actual fuel injection quantity per stroke of the engine to the remaining film mass quantity thereby estimating a current film mass quantity.

    摘要翻译： 通过从传感器数据计算喷射的燃料沉积并形成膜质量的沉积速率X来确定将供应到发动机（10）的每个气缸的混合物的空燃比维持在期望值所需的燃料喷射量 发动机的进气歧管壁（21）和蒸发速率1 / tau，薄膜质量从歧管壁蒸发，从计算出的X和1 / tau计算当前薄膜质量Mf，并将燃料量从前一 从进气流量Qa和期望的空燃比A / F计算要供应到气缸的期望燃料量Qa /（A / F），并根据计算结果确定当前燃料喷射量Gf 使用以下等式另外，通过从由下式估计的膜质量中减去要传送到圆筒的循环燃料量的计算值来实现精确的膜质量估计 并且根据发动机的每个行程的实际燃料喷射量获得的每个周期的壁沉积燃料量的计算值与剩余的膜质量相加，从而估计当前的膜质量。

    System and method for electronic control of internal combustion engine
    10.
    发明公开
    System and method for electronic control of internal combustion engine 失效
    内燃机电子控制系统与方法

    公开(公告)号：EP0247626A3

    公开(公告)日：1988-10-12

    申请号：EP87107830

    申请日：1987-05-29

    申请人： HITACHI, LTD.

    发明人： Sekozawa, Teruji ,  Shioya, Makoto ,  Funabashi, Motohisa ,  Onari, Mikihiko

    IPC分类号： F02D11/10 ,  F02D41/10

    CPC分类号： F02D11/10 ,  F02D41/10 ,  F02P5/045 ,  F02P5/1455 ,  F02P5/1514 ,  Y02T10/46

    摘要： A system and a method for electronically controlling an internal combustion engine of a vehicle is disclosed which is of the kind electrically controlling the opening of a throttle valve (20) controlling the quantity of intake air supplied to the engine. The electronic engine control system includes means (211) setting a target acceleration (ACCO) of the vehicle according to an amount of depression of an accelerator pedal (22) by the driver means, comparing the target acceleration (ACCO) with an actual acceleration (ACC) of the vehicle to find a deviation (ΔACC) there­between and means (212), setting a target value of the throttle valve opening on the basis of the acceleration deviation (ΔACC), and controlling the throttle valve opening until it attains the target value (ACCO).