Air fuel ratio detecting arrangement and method therefor for an internal
combustion engine
    1.
    发明授权
    Air fuel ratio detecting arrangement and method therefor for an internal combustion engine 失效
    用于内燃机的空燃比检测装置及其方法

    公开(公告)号:US5323635A

    公开(公告)日:1994-06-28

    申请号:US68670

    申请日:1993-05-28

    摘要: An air fuel ratio detecting arrangement using a diffusion suppressing type air fuel ratio sensor applicable to an air fuel ratio control unit for an internal combustion engine incorporating an atmospheric air pressure correction circuit in a signal processing and outputting device for correcting an output voltage signal processed therein based on a change in atmospheric air pressure which is detected when a predetermined operating condition of an internal combustion engine is satisfied. A secular change correction circuit included in the signal processing and outputting device detects a change in electromotive force of a concentration cell portion of the air fuel ratio sensor when a predetermined rich air fuel ratio is reached and corrects a reference voltage for the air fuel ratio sensor based on the detected change in electromotive force of the concentration cell portion in addition to an air calibration circuit.

    摘要翻译: 一种空气燃料比检测装置,其使用扩散抑制型空燃比传感器,其适用于在内置有大气压力校正电路的内燃机的空燃比控制单元,该信号处理和输出装置用于校正其中处理的输出电压信号 基于当满足内燃机的预定操作条件时检测到的大气压力的变化。 包括在信号处理和输出装置中的长期变化校正电路在达到预定的浓空气燃料比时检测空燃比传感器的浓缩池部分的电动势的变化,并校正空燃比传感器的参考电压 基于除了空气校准电路之外的所检测到的浓度单元部分的电动势的变化。

    On-vehicle radar
    2.
    发明申请
    On-vehicle radar 审中-公开
    车载雷达

    公开(公告)号:US20060290564A1

    公开(公告)日:2006-12-28

    申请号:US11178408

    申请日:2005-07-12

    IPC分类号: G01S13/90

    摘要: A small, light and low-cost on-vehicle radar which reduces noise caused by a road surface, own car and radar itself, prevents road clutter and improves detection performance is provided. The on-vehicle radar includes an antenna having one or a plurality of radiation elements which radiate linearly polarized waves, a slit plate provided with a plurality of slits on a metal plate disposed in front of this antenna surface and a foamed material provided between the antenna and slit plate. Side lobes whose principal component is a cross polarized wave from a feeder line of the antenna can be reduced and road clutter can be prevented. Resonance of slits whose characteristic frequency becomes equal to or smaller than the frequency of vehicle can be reduced and noise can be suppressed. Therefore, it is possible to obtain excellent detection performance as the radar apparatus.

    摘要翻译: 一种小型,轻便和低成本的车载雷达,减少路面噪音,自身车载雷达本身,防止道路杂波,提高检测性能。 车载雷达包括具有辐射线性偏振波的一个或多个辐射元件的天线,在设置在该天线表面之前的金属板上设置有多个狭缝的狭缝板和设置在该天线之间的泡沫材料 和狭缝板。 其主要成分是来自天线的馈电线的交叉极化波的旁瓣可以减少,并且可以防止道路杂波。 可以减小特征频率变得等于或小于车辆频率的缝隙的共振,并且可以抑制噪声。 因此,作为雷达装置,可以获得优异的检测性能。

    Vehicle-mounted millimeter wave radar device, millimeter wave radar module, and manufacturing method thereof
    3.
    发明授权
    Vehicle-mounted millimeter wave radar device, millimeter wave radar module, and manufacturing method thereof 失效
    车载毫米波雷达装置,毫米波雷达模块及其制造方法

    公开(公告)号:US07355547B2

    公开(公告)日:2008-04-08

    申请号:US11482056

    申请日:2006-07-07

    IPC分类号: G01S13/00 H01L23/28

    摘要: An object of the present invention is to provide a millimeter wave radar device and module that provides a hollow structure while assuring adequate moisture resistance.A multilayer substrate on which at least one millimeter wave MMIC is mounted and a cap for forming a hollow around the MMIC are joined together with an adhesive or other similar organic member to obtain a high-frequency characteristic. The resulting assembly is housed in a case and covered with a moisture resistance by a gelled organic resin. The nonairtight structure obtained in this manner permits the use of low-cost members and provides increased productivity.

    摘要翻译: 本发明的目的是提供一种提供中空结构同时确保足够的耐湿性的毫米波雷达装置和模块。 其上安装有至少一毫米波MMIC的多层基板和用于在MMIC周围形成中空的盖子用粘合剂或其它类似的有机部件连接在一起以获得高频特性。 所得的组件容纳在壳体中并通过凝胶状有机树脂覆盖有防潮性。 以这种方式获得的非密封结构允许使用低成本构件并提高生产率。

    Radar Device
    4.
    发明申请
    Radar Device 审中-公开
    雷达装置

    公开(公告)号:US20080062038A1

    公开(公告)日:2008-03-13

    申请号:US11840680

    申请日:2007-08-17

    IPC分类号: G01S13/00

    摘要: In a radar device, in order to make it simple to attach a connector to a housing and connect a control circuit board to an antenna module, to make it possible to automate assembly, and to achieve downsizing and weight reduction, the radar device comprises a resin housing having upper and lower opening portions, and a control circuit board attached to the resin housing, a metal front cover and a metal rear cover are arranged so as to close the upper and lower opening portions of the resin housing, an opening portion is formed in the metal front cover, and an antenna module is arranged in the opening portion so as to be firmly attached, whereby the radar device can be assembled from one side, it is possible to improve efficiency of assembling work and it is possible to achieve downsizing and cost reduction of the radar device.

    摘要翻译: 在雷达装置中,为了简单地将连接器连接到外壳并将控制电路板连接到天线模块,使得能够自动组装,并且实现小型化和减轻重量,雷达装置包括 具有上开口部和下开口部的树脂壳体和安装在树脂壳体上的控制电路基板,金属前盖和金属后盖配置成封闭树脂壳体的上下开口部,开口部为 形成在金属前盖中,并且天线模块布置在开口部分中以牢固地附接,从而可以从一侧组装雷达装置,可以提高组装作业的效率,并且可以实现 雷达装置的精简和降低成本。