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    • 5. 发明授权
    • Hydraulic-pressure control apparatus and operation-characteristic obtaining apparatus
    • 液压控制装置和操作特性取得装置
    • US07481500B2
    • 2009-01-27
    • US11322562
    • 2006-01-03
    • Tetsuya MiyazakiMasaaki KomazawaYoshito Tanaka
    • Tetsuya MiyazakiMasaaki KomazawaYoshito Tanaka
    • B60T8/88
    • B60T8/4081B60T8/367B60T8/90
    • An operation-characteristic obtaining apparatus including an operation-characteristic obtaining portion which obtains, as an operation characteristic of an electromagnetic control valve which includes a coil and which is opened and closed according to at least a relationship between (a) an acting force corresponding to a difference of respective pressures of a working liquid on either side of the electromagnetic control valve and (b) an electromagnetic drive force corresponding to an electric current supplied to the coil, a relationship between (c) a valve switching current as an electric current that is supplied to the coil of the electromagnetic control valve at a time when the electromagnetic control valve is switched between a closed state thereof and an opened state thereof and (d) a difference at the time of the respective pressures on either side of the electromagnetic control valve; and a leakage detecting portion which detects, when the operation-characteristic obtaining portion obtains the operation characteristic of the electromagnetic control valve, whether the electromagnetic control valve has a leakage of the working liquid.
    • 一种操作特性获取装置,包括操作特性获取部分,其获得包括线圈的电磁控制阀的操作特性,所述电磁控制阀至少根据以下的关系而被打开和关闭:(a) 电磁控制阀的任一侧上的工作液体的压力差和(b)与供给线圈的电流对应的电磁驱动力的关系,(c)作为电流的阀开关电流之间的关系, 在电磁控制阀在其关闭状态和打开状态之间切换时提供给电磁控制阀的线圈,以及(d)电磁控制两侧各压力时的差值 阀; 以及泄漏检测部,其在所述操作特性获取部获得所述电磁控制阀的动作特性时,检测所述电磁控制阀是否具有所述工作液体的泄漏。
    • 8. 发明申请
    • BRAKE SYSTEM
    • 刹车系统
    • US20110316326A1
    • 2011-12-29
    • US13254262
    • 2010-02-02
    • Tetsuya MiyazakiTakayuki Yamamoto
    • Tetsuya MiyazakiTakayuki Yamamoto
    • B60T13/68B60T11/20B60T13/138
    • B60T8/885B60T8/344B60T8/4081B60T8/88B60T2270/402
    • A brake system including: (i) hydraulic brakes provided for respective wheels of a vehicle, and configured to be activated by hydraulic pressures of respective brake cylinders so as to restrain rotations of the respective wheels; (ii) a power hydraulic pressure source including a drive source that is activatable by supply of electric energy, and configured to generate hydraulic pressure by activation of the drive source; and (iii) a common passage to which the power hydraulic pressure source and the brake cylinders of the hydraulic brakes are connected. The brake cylinders include a first brake cylinder connected to the common passage via a first individual passage that is provided with a normally-close electromagnetic valve as a first individual control valve. The brake cylinders include a second brake cylinder connected to the common passage via a second individual passage that is provided with a normally-open electromagnetic valve as a second individual control valve.
    • 一种制动系统,包括:(i)为车辆的各个车轮提供的液压制动器,并且构造成由相应的制动缸的液压启动,以便抑制各个车轮的转动; (ii)动力液压源,其包括可通过供应电能激活的驱动源,并且构造成通过所述驱动源的激活产生液压; 和(iii)连接液压制动器的动力液压源和制动缸的共同通道。 制动液缸包括经由第一单独通道连接到公共通道的第一制动缸,第一单独通道设置有作为第一单独控制阀的常闭电磁阀。 制动缸包括通过第二单独通道连接到公共通道的第二制动缸,该第二单独通道设置有作为第二单独控制阀的常开电磁阀。