JPS5495314A - Electric train controller - Google Patents

Electric train controller

Info

Publication number
JPS5495314A
JPS5495314A JP201978A JP201978A JPS5495314A JP S5495314 A JPS5495314 A JP S5495314A JP 201978 A JP201978 A JP 201978A JP 201978 A JP201978 A JP 201978A JP S5495314 A JPS5495314 A JP S5495314A
Authority
JP
Japan
Prior art keywords
vehicle speed
resistor
braking
change over
predetermined value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP201978A
Other languages
Japanese (ja)
Inventor
Toshikatsu Kono
Yoshio Nozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP201978A priority Critical patent/JPS5495314A/en
Publication of JPS5495314A publication Critical patent/JPS5495314A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent a rapid change of a braking force at a change over of resistors by detecting that a vehicle speed reaches to a predetermined value with a vehicle speed detector, and then decreasing a field current to a predetermined value to change over a resistor in a dynamic brake at braking.
CONSTITUTION: When a main motor 8 is operated as a separately excited generator by connecting its armature to a dynamic brake resistor 11 and closing a braking switch 15 to decrease a current of a field winding 13 through a rectifier 4d at dynamic braking, a decision circuit checks whether a vehicle speed reaches to the speed to be change over reistance of the dynamic brake resistor 11 or not base on an output from a vehicle speed detector and commands to decrease the field current to a predetermined value and the resistor is changed over with a circuit breadker 12 after detection of this decrese. By this means, a smooth change over of the brake resistor can be made without a rapid change of a braking force in a main circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP201978A 1978-01-13 1978-01-13 Electric train controller Pending JPS5495314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP201978A JPS5495314A (en) 1978-01-13 1978-01-13 Electric train controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP201978A JPS5495314A (en) 1978-01-13 1978-01-13 Electric train controller

Publications (1)

Publication Number Publication Date
JPS5495314A true JPS5495314A (en) 1979-07-27

Family

ID=11517615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP201978A Pending JPS5495314A (en) 1978-01-13 1978-01-13 Electric train controller

Country Status (1)

Country Link
JP (1) JPS5495314A (en)

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