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    • 6. 发明授权
    • Piezoelectric material and piezoelectric element
    • 压电材料和压电元件
    • US5935485A
    • 1999-08-10
    • US961147
    • 1997-10-30
    • Takao TaniHiroaki MakinoNobuo Kamiya
    • Takao TaniHiroaki MakinoNobuo Kamiya
    • H01L41/187H01L41/00
    • H01L41/187Y10T428/2991
    • A piezoelectric material includes a PZT ceramic, and a noble metal component. The noble metal component is added to the PZT ceramic in an amount of 0.35 parts by volume or more with respect to 100 parts by volume of the PZT ceramic, and is at least one element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt and Au, or is an alloy of silver (Ag) and the noble metal element. A piezoelectric element includes a pair of external electrodes, at least a pair of piezoelectric layers, and a conductive layer. The piezoelectric layers are formed of the PZT ceramic, and are disposed between the external electrodes. The conductive layer is formed of the noble metal component, and is insulated from the external electrodes. The piezoelectric layers and the conductive layer are formed lamellarly, and are laminated alternately in a direction connecting the external electrodes.
    • 压电材料包括PZT陶瓷和贵金属组分。 相对于100体积份的PZT陶瓷,贵金属成分以0.35体积份以上的量添加到PZT陶瓷中,并且为选自Ru,Rh,Pd, Os,Ir,Pt和Au,或者是银(Ag)和贵金属元素的合金。 压电元件包括​​一对外部电极,至少一对压电层和导电层。 压电层由PZT陶瓷形成,并且设置在外部电极之间。 导电层由贵金属成分形成,与外部电极绝缘。 压电层和导电层层叠形成,并且在连接外部电极的方向上交替层叠。
    • 7. 发明申请
    • Wheel Action Force Detection System and Wheel Action Force Detection Method
    • 车轮动作力检测系统和车轮动作力检测方法
    • US20070029872A1
    • 2007-02-08
    • US11461833
    • 2006-08-02
    • Fumito KurataToshimichi TakahashiMitsuru AsaiHiroaki MakinoNobutsuna Motohashi
    • Fumito KurataToshimichi TakahashiMitsuru AsaiHiroaki MakinoNobutsuna Motohashi
    • F16D66/00
    • B60T8/172B60G2400/64B60G2800/21B60W10/184B60W30/18172B60W2520/28B60W2530/20B60W2720/28B60W2720/30
    • An object is to provide a wheel action force detection system and a wheel action force detection method for finding braking force of a vehicle having a disc brake at the time of braking with high accuracy. A wheel action force detection system 1 comprises deformation amount sensors 2a and 2b detecting elastic deformation amount of a suspension unit 13 which pivotally supports a traveling wheel 11 rotatably; a braking force sensor 3 detecting braking force in the case that a disc brake 14 fixed to the suspension unit 13 brakes the traveling wheel 11; and a control part 4a calculating longitudinal force, axial force and vertical force acting on the suspension unit 13 based on the elastic deformation amount of the suspension unit 13, regarding the result of subtracting longitudinal component of reaction force of braking force of the disc brake 14 from longitudinal force acting on the suspension unit 13 as longitudinal force acting on the traveling wheel 11, and regarding the result of subtracting vertical component of reaction force of braking force of the disc brake 14 from vertical force acting on the suspension unit 13 as vertical force acting on the traveling wheel 11 so as to calculate wheel action force acting on the traveling wheel 11 at the touching part between the traveling wheel 11 and a road surface.
    • 本发明提供一种用于在制动时以高精度找到具有盘式制动器的车辆的制动力的车轮作动力检测系统和车轮作动力检测方法。 车轮动作力检测系统1包括检测可转动地支撑行进轮11的悬架单元13的弹性变形量的变形量传感器2a和2b; 在固定在悬架单元13的盘式制动器14制动行进轮11的情况下,检测制动力的制动力传感器3; 以及控制部分4a,关于减去盘式制动器的制动力的反作用力的纵向分量的结果,计算基于悬架单元13的弹性变形量作用在悬架单元13上的纵向力,轴向力和垂直力 14作为作用在行进轮11上的纵向力的作用在悬架单元13上的纵向力,并且关于从盘式制动器14的制动力的反作用力的垂直分量减去垂直作用在悬架单元13上的垂直力的结果为垂直 作用在行进轮11上的力,以计算在行进轮11与路面之间的接触部分作用在行进轮11上的车轮作用力。