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    • 84. 发明授权
    • Valve control apparatus of internal combustion engine
    • 内燃机气门控制装置
    • US07832373B2
    • 2010-11-16
    • US12065552
    • 2006-08-30
    • Hiroshi Enomoto
    • Hiroshi Enomoto
    • F02D1/00F02D9/08
    • F02D41/042F02D41/0055F02D2011/108F02M26/11F02M26/48F02M26/50F02M26/54F02M26/70F02M26/73Y02T10/47
    • A valve control apparatus of a diesel engine (1) is provided with an EGR valve (30), which is provided in an EGR passage (26) of the engine (1) and varies the flow rate of exhaust gas flowing through a passage (26) by carrying out an opening and closing motion, and an actuator (28), which executes a sticking avoiding operation for dissolving or preventing a sticking of a valve (30) by causing the valve (30) to move to and fro so as to open and close the valve (30) by a predetermined moving amount respectively in one direction and the other direction near a full-close position of the valve (30). The apparatus inhibits the sticking avoiding operation by the actuator (28) when an ignition OFF operation is carried out without starting an operation of the engine (1) after an ignition ON operation is carried out. As a result, it is possible to prevent a useless valve opening and closing motion and achieve power saving.
    • 柴油发动机(1)的阀控制装置设置有EGR阀(30),其设置在发动机(1)的EGR通路(26)中,并且改变流过通道的排气的流量( 26),以及致动器(28),其执行用于通过使阀(30)来回移动来溶解或防止阀(30)的粘附的粘附避免操作,以便 分别在阀(30)的完全关闭位置附近的一个方向和另一个方向上打开和关闭阀(30)预定的移动量。 在执行点火ON操作之后,当进行点火OFF操作而不启动发动机(1)的操作时,该装置禁止致动器(28)的防止操作。 结果,可以防止无用的阀开闭动作,实现省电。
    • 89. 发明申请
    • Piezoelectric actuator driver
    • 压电执行器驱动
    • US20060012937A1
    • 2006-01-19
    • US10536825
    • 2003-12-11
    • Kazuhisa WatanabeSatoshi EnomotoHiroshi EnomotoShigeru KanaiToshiaki Takane
    • Kazuhisa WatanabeSatoshi EnomotoHiroshi EnomotoShigeru KanaiToshiaki Takane
    • H01H47/00
    • H02N2/067H01L41/094
    • To provide a driver for driving piezoelectric actuators with drastically reduced drive currents during on/off switch control, thereby reducing the power consumption of an overall device. Each of the plural piezoelectric actuators 1a to 1h is composed of a plate and piezoelectric sheets attached to the opposed surfaces of the plate. A positive feeder line 19 or a negative feeder line 21 is connected to the opposite side of each piezoelectric sheet to the side attached to the plate. The controller 27 on-controls the piezoelectric sheets of each of the piezoelectric actuators 1a to 1h by selectively applying a positive or negative drive voltage thereto. Thereafter, the controller 27 turns off the drive voltage applied to the piezoelectric sheets subjected to on-control and simultaneously with this, turns on a drive voltage to the piezoelectric sheets of any other one the piezoelectric electric actuators 1a to 1h to be driven next.
    • 为了提供用于驱动压电致动器的驱动器,其在开/关开关控制期间具有显着降低的驱动电流,从而降低了整个装置的功耗。 多个压电致动器1a至1h中的每一个由板和连接到板的相对表面的压电片组成。 正的馈线19或负馈线21连接到每个压电片的与安装在该板上的一侧相反的一侧。 控制器27通过选择性地施加正或负的驱动电压来控制每个压电致动器1a至1h的压电片。 此后,控制器27关闭施加在受控制的压电片材上的驱动电压,同时,驱动电压驱动压电电致动器1a至1h的压电片材驱动 下一个。