JPS55136802A - Dynamic brake control of railway electric car - Google Patents
Dynamic brake control of railway electric carInfo
- Publication number
- JPS55136802A JPS55136802A JP4342979A JP4342979A JPS55136802A JP S55136802 A JPS55136802 A JP S55136802A JP 4342979 A JP4342979 A JP 4342979A JP 4342979 A JP4342979 A JP 4342979A JP S55136802 A JPS55136802 A JP S55136802A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- current
- signal
- dynamic brake
- vehicle speed
- 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.)
- Granted
Links
Landscapes
- Stopping Of Electric Motors (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To prevent overvoltage and overcurrent by switching the first and second current for setting the dynamic brake current each corresponding to the first and second preset speed.
CONSTITUTION: When the vehicle speed exceeds the first preset speed, the first set speed signal corresponding to the first preset speed from the first speed pattern generator 18 is compared with the vehicle speed detected by means of a comparator 19. Thus, the output relay 21 provided through the speed detector 20 in noway excited. As the drop of the vehicle speed actuates the output relay 21, the current pattern change-over relay is excited and the first set current signal is cut at the contact 24a of the change-over relay 24, so that the contact 24b is closed to allow the second set current signal to be inputted into a comparator 14. The second set signal is outputted from the second generator 25 to switch the set current signal whereby a large braking force is obtained corresponding to the set current at the low speed range. Accordingly, overvoltage and overcurrent can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4342979A JPS6032405B2 (en) | 1979-04-09 | 1979-04-09 | Electric vehicle power generation brake control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4342979A JPS6032405B2 (en) | 1979-04-09 | 1979-04-09 | Electric vehicle power generation brake control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55136802A true JPS55136802A (en) | 1980-10-25 |
JPS6032405B2 JPS6032405B2 (en) | 1985-07-27 |
Family
ID=12663446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4342979A Expired JPS6032405B2 (en) | 1979-04-09 | 1979-04-09 | Electric vehicle power generation brake control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6032405B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303301A (en) * | 1989-05-18 | 1990-12-17 | Sanyo Electric Co Ltd | Motor car |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62200704U (en) * | 1986-06-06 | 1987-12-21 |
-
1979
- 1979-04-09 JP JP4342979A patent/JPS6032405B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303301A (en) * | 1989-05-18 | 1990-12-17 | Sanyo Electric Co Ltd | Motor car |
Also Published As
Publication number | Publication date |
---|---|
JPS6032405B2 (en) | 1985-07-27 |
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