会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明专利
    • 絶縁回路および交流電気車用主回路
    • 绝缘电路和交流电动车主电路
    • JP2015089238A
    • 2015-05-07
    • JP2013225967
    • 2013-10-30
    • 公益財団法人鉄道総合技術研究所
    • 福田 典子小笠 正道
    • B60L9/12H02M7/48H02M3/00
    • Y02T10/7241
    • 【課題】電気的な絶縁を確保しつつ、電力の融通を可能とした変圧器とは異なる新たな機器を実現すること。 【解決手段】スイッチング素子とダイオード素子とを逆並列接続した4つの基本回路20(20−1〜20−4)と、コンデンサ30とを有して絶縁回路10を構成する。4つの基本回路20のうち、第1基本回路20−1および第3基本回路20−3を、互いのダイオード素子の順方向が向き合うように縦続接続されて高圧側ラインHLに挿入する。第2基本回路20−2および第4基本回路20−4を、互いのダイオード素子の順方向が向き合うように縦続接続されて低圧側ラインLLに挿入する。そして、第1基本回路20−1および第3基本回路20−3の接続点と、第2基本回路20−2および第4基本回路20−4の接続点とをコンデンサ30で接続する。 【選択図】図1
    • 要解决的问题:实现与变压器不同的新设备,能够在确保电绝缘的同时交换电力。解决方案:绝缘电路10包括:四个基本电路20(20-1至20-4),每个基本电路包括开关元件和 二极管元件,反相并联连接; 和电容器30.四个基本电路20中的第一基本电路20-1和第三基本电路20-3串联连接,使得其二极管元件的正向彼此面对并插入高电压 侧线HL。 第二基本电路20-2和第四基本电路20-4级联连接,使得其二极管元件的正向彼此面对,并插入低电压侧线LL。 第一基本电路20-1和第三基本电路20-3之间的连接点以及第二基本电路20-2和第四基本电路20-4之间的连接点与电容器30连接。
    • 8. 发明专利
    • ELECTRIC CAR CONTROLLING DEVICE
    • JPH1155809A
    • 1999-02-26
    • JP20277097
    • 1997-07-29
    • TOSHIBA CORP
    • NAKAZAWA YOSUKE
    • B60L9/12B60L9/16
    • PROBLEM TO BE SOLVED: To provide an electric car controlling device capable of performing a slip control reliably even in the state that all shafts are slipping. SOLUTION: A wheel speed detecting part 2 is provided on an electric car 1, and rotating speed ωr1 to ωr4 are inputted into a controlling part 3. A car body speed presuming part 31 presumes and outputs car body speed ωrT based on the input of the rotating speed ωr1 to ωr4. A slip speed calculating part 32 inputs the car body presumed speed ωrT and the wheel speed ωr1 to obtain and output slip speed Δωr. An all-shaft slip detecting part 33 determines whether or not all the shafts are slipping (whether or not there is such a sign) to output a detection flag FlgZEN. An all-shaft slip controlling torque reducing part 34 inputs the FlgZEN to obtain and output a torque command TrqRef1. If there is a sign that all the shafts may slip, torque is reduced on a motor having the rotating speed of ωr1 in the electric car 1.
    • 9. 发明专利
    • POWER-SUPPLY APPARATUS FOR VEHICLE
    • JPH10285701A
    • 1998-10-23
    • JP8901997
    • 1997-04-08
    • TOSHIBA TRANSPORT ENG KKTOSHIBA CORP
    • KOZUKA AKIRAAISAKA TORU
    • B60L1/00B60L3/00B60L9/12H02M7/48
    • PROBLEM TO BE SOLVED: To reduce a starting current to a load and to suppress a transient increase in an output corrent by a method wherein, when a starting command to the load is input, so that an inverter is controlled in such a way that the output voltage of the inverter is made lower than a rated voltage for a prescribed time and a contactor is charged. SOLUTION: DC electric powder which is received by a pantograph 1 charges a filter capacitor 2 is converted into a desired AC electric power by an inverter 3. The output of the inverter 3 is supplied to a load 5 via a contactor 4. A control device 6 controls the contact 4 so as to be charged and released, and it controls the inverter 3. When a starting command 8 is input, the control device 6 controls the output voltage of the inverter 3, so as to be lowered for only a definite time. Then, when the output voltage is stabilized at a voltage which is lower than a rated voltage, the contactor 4 is controlled to be charged. Consequently, since the starting current of the load 5 is proportional to an applied voltage, the starting current of the load 5 in this case can be suppressed more than that in a case in which the load is charged at a rated output voltage.