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1. 发明专利

JPH07251737A VEHICLE CONTROL DEVICE 失效
公开(公告)号：JPH07251737A
公开(公告)日：1995-10-03
申请号：JP4381294
申请日：1994-03-15
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： ITAHANA HIROSHI , TSUNODA KOJI , SATO KENICHI , MIYASHITA TOMOJI , IWATAKI MASAHITO , HORIE SATORU , TSUBOI TAKASHI , KITABAYASHI HIDEAKI
IPC分类号： B61C17/00 , H02M7/04
摘要： PURPOSE:To provide a vehicle control device which allows easy maintenance and inspection work and enables reliable cooling of heating equipment. CONSTITUTION:In a vehicle control device having a control box 4 installed beneath the floor of a vehicle body, a first storage compartment 5 for accommodating control circuit components is provided on one side of the vehicle-body lateral direction of the control box 4 and along the longitudinal direction of the vehicle body, a blower chamber 6 for accommodating a blower is provided adjacent the first compartment and along the longitudinal direction of the vehicle body, and a second storage compartment 7 for accommodating semiconductor control elements, voltage absorption circuit components and a cooling unit is provided on the other side of the vehicle-body lateral direction of the control box. A cooling air passage is formed which allows cooling air created by the blower to be introduced into the interface between the first storage compartment 5 and the blower chamber 6 and along the forward direction of the vehicle body, pass through the second storage compartment 7 and be discharged out of the control box.

2. 发明专利

JPH0715975A SEMICONDUCTOR COOLING DEVICE 失效
公开(公告)号：JPH0715975A
公开(公告)日：1995-01-17
申请号：JP14455093
申请日：1993-06-16
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： IDE YUTAKA , MIYAKE WATARU , IWATAKI MASAHITO , ITAHANA HIROSHI , TSUNODA KOJI
IPC分类号： H01L23/467 , H02M7/48 , H05K7/20
摘要： PURPOSE:To miniaturize the semiconductor cooling device of a power conversion device consisting of the converter and inverter of an AC electrical vehicle and to reduce its weight as compared with a conventional one. CONSTITUTION:In a power conversion device, the refrigerants of cooling equipment 3 and 4 at converter and inverter parts are made to be common and then the amount of heat generated by both is dissipated by the same cooling equipment by paying attention to a fact that the peak timings of loss generated at the converter and inverter parts differ.

3. 发明专利

JPH0787612A CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH0787612A
公开(公告)日：1995-03-31
申请号：JP23280593
申请日：1993-09-20
申请人： HITACHI LTD
发明人： KITABAYASHI HIDEAKI , IWATAKI MASAHITO , TAKAI HIDEO , KASAI SHOJI
IPC分类号： B60L3/00 , B60L9/16 , H02P5/74 , H02P27/06 , H02P7/63 , H02P7/74
摘要： PURPOSE:To suppress the generation of noise from a flexible shaft coupling for coupling a main motor and a gear unit at the time of coasting. CONSTITUTION:A torque operating section 15 receives a coasting torque command 14 from a main controller 11 and a main motor current from each main motor and produces an output such that the total torque is offset. A main motor controller controls the main motors 16 individually to produce powering or regenerative torque.

4. 发明专利

JPH01117605A CONTROLLER FOR ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPH01117605A
公开(公告)日：1989-05-10
申请号：JP27187887
申请日：1987-10-29
申请人： HITACHI LTD
发明人： IWATAKI MASAHITO , HORIE SATORU , MIZOBUCHI TETSUYA , OZAWA TSUTOMU , OKAMATSU SHIGETOSHI , JINBO YOSHIJI , TOYODA EIICHI
IPC分类号： B60L9/18
摘要： PURPOSE:To enable constant-speed control to be exactly executed at an arbitrary speed, by making main circuit releasing function due to a main circuit releasing means, invalid at the time of generating constant speed command. CONSTITUTION:When a master controller 6 is thrown-in a constant speed operation notch 6e, then by the signal of a constant speed command wire 19, change- over switches 9 and 10 are switched. In the meantime, by a desired speed setting unit 20, the then car body speed signal fr is latched, and the signal is set to be following speed command signal fp. Besides, during constant speed operation, by the signal of the constant speed command wire 19, a change-over switch 25 is switched. Then, during the constant speed operation, control function due to a motor current detecting circuit 22 can be made invalid, and even if motor current is made less, a main circuit is not released, and stable constant speed operation can be controlled.

5. 发明专利

JPS6126403A Controller for regenerative brake 失效
标题翻译：再生制动控制器
公开(公告)号：JPS6126403A
公开(公告)日：1986-02-05
申请号：JP14675584
申请日：1984-07-17
申请人： Hitachi Ltd
发明人： AMIKURA SEIKI , IWATAKI MASAHITO , SATO YOSHIO
IPC分类号： B60L7/12
CPC分类号： B60L7/12
摘要： 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.
摘要翻译：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。

6. 发明专利

JPS5788805A CONTROL DEVICE FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPS5788805A
公开(公告)日：1982-06-02
申请号：JP16196480
申请日：1980-11-19
申请人： HITACHI LTD
发明人： IWATAKI MASAHITO , OZAWA TSUTOMU
IPC分类号： B60L15/32
摘要： 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.

7. 发明专利

JPS5368874A BREAKER 失效
公开(公告)号：JPS5368874A
公开(公告)日：1978-06-19
申请号：JP14340776
申请日：1976-12-01
申请人： HITACHI LTD
发明人： IWATAKI MASAHITO , YAMANAKA KAZUHIRO
IPC分类号： H01H3/62

8. 发明专利

JP2513732B2 失效
公开(公告)号：JP2513732B2
公开(公告)日：1996-07-03
申请号：JP27187687
申请日：1987-10-29
申请人： HITACHI LTD
发明人： OZAWA TSUTOMU , MIZOBUCHI TETSUYA , TOYODA EIICHI , JINBO YOSHIJI , IWATAKI MASAHITO , HORIE SATORU , OKAMATSU SHIGETOSHI
IPC分类号： B60L9/18 , B60L15/00 , G05B9/02

9. 发明专利

JPH0447525B2 失效
公开(公告)号：JPH0447525B2
公开(公告)日：1992-08-04
申请号：JP12796686
申请日：1986-06-04
申请人： HITACHI LTD
发明人： HATSUTORI YOSHE , IWATAKI MASAHITO
IPC分类号： B60L3/06 , B60L7/02

10. 发明专利

JPS62285601A CONTROLLER FOR ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPS62285601A
公开(公告)日：1987-12-11
申请号：JP12796686
申请日：1986-06-04
申请人： HITACHI LTD
发明人： HATTORI YOSHIE , IWATAKI MASAHITO
IPC分类号： B60L3/06 , B60L7/02
摘要： 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.

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