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    • 1. 发明授权
    • Control apparatus of electric vehicle
    • 电动车控制装置
    • US06456909B1
    • 2002-09-24
    • US09651721
    • 2000-08-30
    • Motomi ShimadaTetsuo KojimaKiyoshi NakataEiichi ToyotaToshihiko Sekizawa
    • Motomi ShimadaTetsuo KojimaKiyoshi NakataEiichi ToyotaToshihiko Sekizawa
    • B60L700
    • B60L7/26B60L2200/26Y02T10/7258
    • To determine the timing of the electrical brake for completely stopping in electrical braking control, and also to achieve both sure stopping and good riding comfort in an electric vehicle powered by the motor by decreasing the braking force at a prescribed rate of change, the torque of the electric motor is controlled by controlling the power converter which powers the motor using a power converter controller. The deceleration of the motor is computed based on the detected speed of the electric motor which is as an output of the speed detection means, the subsequent speed of the electric motor is estimated based on the detected speed and the deceleration rate of the electric motor at the time the detected rotational speed of the electric motor falls below a prescribed speed, and torque control is carried out using an electric power converter controller, based on the estimated speed.
    • 为了确定在电制动控制中完全停止的电动制动器的时机,并且通过以规定的变化率减小制动力,也能够实现由电动机驱动的电动车辆的确定停止和良好的乘坐舒适性, 通过控制使用功率转换器控制器为电机供电的功率转换器来控制电动机。 基于作为速度检测装置的输出的电动机的检测速度来计算电动机的减速度,基于电动机的检测速度和减速度来估计电动机的后续速度 电动机的检测转速下降到低于规定速度的时间,并且使用电力转换控制器基于估计速度进行转矩控制。
    • 3. 发明授权
    • DC apparatus and vehicle using the same
    • 直流设备和使用其的车辆
    • US06633495B2
    • 2003-10-14
    • US10101529
    • 2002-03-20
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • H02M324
    • H02M1/143
    • The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.
    • 施加到功率转换器的电压由电压检测器检测,功能发生器产生与该检测电压成比例的电压,高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压,加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较,并且根据比较结果控制开关元件进行开关操作。 当直流电流被交流分量降低时,电阻电流Ib增加,从而可以消除叠加在电流和电阻电流上的交流分量。
    • 8. 发明申请
    • DC POWER SUPPLY
    • 直流电源
    • US20120224396A1
    • 2012-09-06
    • US13367653
    • 2012-02-07
    • Yuichiro NOZAKITetsuo KojimaMasafumi Makino
    • Yuichiro NOZAKITetsuo KojimaMasafumi Makino
    • H02M3/335
    • H02M3/3378Y02B70/1433
    • In a DC power supply in which a DC power source and a transformer are connected via a power conversion circuit and a secondary winding of the transformer is connected to a load via a rectifier diode bridge and a filter circuit to supply power to the load, a resonance reactor is provided on an output side of the transformer, a resonant switch circuit including a parallel circuit of a diode and a semiconductor switch and a resonant capacitor is connected in parallel to the rectifier diode bridge and a snubber circuit including a snubber capacitor, a snubber diode and a diode for discharge is connected to a serial resonant circuit including the resonance reactor and the resonant capacitor in the resonant switch circuit to absorb a surge voltage.
    • 在其中直流电源和变压器通过功率转换电路连接的直流电源和变压器的次级绕组经由整流二极管桥和滤波电路连接到负载以向负载供电, 谐振电抗器设置在变压器的输出侧,包括二极管和半导体开关的并联电路和谐振电容器的谐振开关电路并联连接到整流二极管桥和包括缓冲电容器的缓冲电路, 缓冲二极管和用于放电的二极管连接到包括谐振电抗器和谐振开关电路中的谐振电容器的串联谐振电路以吸收浪涌电压。
    • 10. 发明申请
    • Solid-state laser system
    • 固态激光系统
    • US20050232328A1
    • 2005-10-20
    • US11090174
    • 2005-03-28
    • Junichi NishimaeTetsuo Kojima
    • Junichi NishimaeTetsuo Kojima
    • H01S3/08G02B27/09H01S3/00H01S3/06H01S3/07H01S3/081H01S3/091H01S3/10H01S3/16H01S3/23
    • H01S3/0602H01S3/005H01S3/07H01S3/08H01S3/08072H01S3/0815H01S3/091H01S3/2316
    • A simple and high-reliability constitution provides a solid-state laser system that allows a high-output, long-pulse-width laser beam to be obtained. A solid-state laser system that includes a solid-state laser medium 1, a light source 2 for pumping the solid-state laser medium 1, two reflecting mirrors 3 and 4 for flanking the solid-state laser medium 1, thereby constituting a laser resonator, is constituted in such a manner that a virtual-mirror plane 5 is defined in the space between the solid-state laser medium 1 and the reflecting mirror 4; a lens 6 is provided between the virtual-mirror plane 5 and the reflecting mirror 4; and, by means of the forward and backward paths along the route from the virtual-mirror plane to the reflecting mirror by way of the lens, the virtual-mirror plane in the forward path and the virtual-mirror plane in the backward path are made in an optically conjugated relationship with each other.
    • 简单且高可靠性的结构提供了一种能够获得高输出,长脉冲宽度的激光束的固态激光系统。 一种固态激光系统,包括固体激光介质1,用于泵浦固态激光介质1的光源2,用于固定固体激光介质1侧面的两个反射镜3和4,从而构成激光 谐振器构成为在固体激光介质1和反射镜4之间的空间中限定虚拟镜面5; 在虚拟镜面5和反射镜4之间设置透镜6; 借助于通过镜头从虚拟镜面到反射镜的路径的前进和后退路径,使前向路径中的虚拟镜面和后向路径中的虚拟镜面成为 彼此具有光学共轭关系。