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
    • 3. 发明专利
    • Controller for regenerative brake
    • 再生制动控制器
    • JPS6126403A
    • 1986-02-05
    • JP14675584
    • 1984-07-17
    • Hitachi Ltd
    • AMIKURA SEIKIIWATAKI MASAHITOSATO YOSHIO
    • B60L7/12
    • B60L7/12
    • PURPOSE:To prevent a regenerative brake at parallel-to-series converting time from abruptly varying by correcting the selection of a notch in response to a trolley voltage. CONSTITUTION:When a regenerative brake is instructed, it first becomes a parallel mode. When a shunt field current arrives at the maximum value, a main motor start switching from parallel to series. The switching operation first connects a resistor 11 with armatures 3-1, 3-2 of two main motors, and then connects the armatures 3-1, 3-2 through the resistor 11 in series. On the other hand, when a shunt field current arrives at the maximum value, a contact 15 is closed. Thus, a collecting unit 20 applies an armature current signal corrected in response to a trolley voltage S to detectors 16-1-16-3. The detectors 16-1-16-3 close respectively contacts 17-1-17-3 in response to the armature current signal to eliminate the variation in the armature current around the switching from the parallel mode to the series mode.
    • 目的:为了防止并联 - 串联转换时间的再生制动突然变化,通过响应于电车电压来校正一个切口的选择。 规定:当再生制动器被指示时,它首先变成并行模式。 当并联电流达到最大值时,主电机开始从并联转换为串联。 开关操作首先将电阻器11与两个主电机的电枢3-1,3-2连接,然后将电枢3-1,3-2通过电阻器11串联连接。 另一方面,当分流场电流达到最大值时,触点15闭合。 因此,收集单元20将响应于电车电压S校正的电枢电流信号施加到检测器16-1-16-3。 检测器16-1-16-3响应于电枢电流信号分别接触17-1-17-3,以消除从并联模式到串联模式的切换周围的电枢电流的变化。
    • 4. 发明专利
    • CONTROL DEVICE FOR ELECTRIC MOTOR VEHICLE
    • JPS5788805A
    • 1982-06-02
    • JP16196480
    • 1980-11-19
    • HITACHI LTD
    • IWATAKI MASAHITOOZAWA TSUTOMU
    • B60L15/32
    • PURPOSE:To set the characteristics of electric motor vehicles of types for controlling N pieces of main motors and for controlling 2N pieces of main motors in coupling operation to the characteristics obtained by adding both the characteristics by shortcircuitting a series control command line and parallel control command line when coupling both the vehicles. CONSTITUTION:In a control circuit for controlling, for example, 8 main motors A1-A8, two wires become active when a master controller is at ''2'' notch, and when the controller advances to S11, a main circuit becomes final series connection. Three wires become active at the ''3'' notch, and when the controller advances to P9, the master circuit becomes in final parallel. When the vehicle of the type having four main motors are coupled, two wires and three wires are shortcircuitted at the contact of a relay MRg. In this manner, the characteristics obtained by adding both the characteristics at the coupling operation time can be provided, and the original characteristics are provided at the independent operation time.
    • 8. 发明专利
    • CONTROLLER FOR ELECTRIC ROLLING STOCK
    • JPS62285601A
    • 1987-12-11
    • JP12796686
    • 1986-06-04
    • HITACHI LTD
    • HATTORI YOSHIEIWATAKI MASAHITO
    • B60L3/06B60L7/02
    • PURPOSE:To prevent the burning of a rheostatic brake resistor by automatically opening a rheostatic brake command circuit after a fixed time passes after a braking command from a motorman's seat is transmitted. CONSTITUTION:When a brake command is outputted to a brake command line (a) line or (b) line from a motorman's seat, a line breaker 15 switching a main motor circuit through an auxiliary contact 7 for a reverser and an auxiliary contact 8 for a braking changeover switch and a cam shaft controller 9 for constituting a rheostatic brake circuit are excited. When a brake command is outputted, on the other hand, a relay 10 is excited, a contact 10a is closed, and a relay 12 is operated after the set time of a timer 11. Consequently, a contact 12a is opened, the line breaker 15 and the cam shaft controller 9 are demagnetized, and the rheostatic brake circuit is opened. Accordingly, the burden of braking force on the rheostatic brake system electric car side is reduced, thus preventing the burning of a main resistor.
    • 9. 发明专利
    • Controller for electric railcar
    • 电动雷达控制器
    • JPS61116904A
    • 1986-06-04
    • JP23662184
    • 1984-11-12
    • Hitachi Ltd
    • AMIKURA SEIKISATO YOSHIOIWATAKI MASAHITO
    • B60L7/12B60L7/22B60L7/24
    • B60L7/22B60L2200/26
    • PURPOSE:To automatically shift to a pneumatic brake if a regenerative load is eliminated during speed suppressing brake by designating a brake force for a speed suppressing brake command from a cab. CONSTITUTION:A speed suppressing brake command N2 (brake force 200kg/M) from a cab 22 is applied from a brake control command 18 through a current control pattern 17 to a main motor to obtain regenerative brake force corresponding to 200kg/M. The command further instructs a pneumatic brake 25 to output pneumatic brake force corresponding to 200kg/M. The brake 25 does not operate pneumatic brake if the output of a brake force detector 20 is the prescribed 200kg/M. If the regenerative load is eliminated, the pneumatic brake force is automatically supplemented by a blending control to always apply constant brake force as an electric railcar.
    • 目的:通过从驾驶室指定用于制动速度制动指令的制动力,在减速制动期间消除再生负载时,自动切换到气动制动器。 构成:从制动控制指令18通过电流控制模式17向主电动机施加来自驾驶室22的减速制动指令N2(制动力200kg / M),得到对应于200kg / M的再生制动力。 该命令进一步指示气动制动器25输出对应于200kg / M的气动制动力。 如果制动力检测器20的输出为规定的200kg / M,则制动器25不操作气动制动器。 如果再生负荷被消除,则气动制动力由混合控制自动补充,以始终作为电气轨道车辆施加恒定的制动力。