JPS5681003A - Method and apparatus for controlling electric car - Google Patents
Method and apparatus for controlling electric carInfo
- Publication number
- JPS5681003A JPS5681003A JP15525879A JP15525879A JPS5681003A JP S5681003 A JPS5681003 A JP S5681003A JP 15525879 A JP15525879 A JP 15525879A JP 15525879 A JP15525879 A JP 15525879A JP S5681003 A JPS5681003 A JP S5681003A
- Authority
- JP
- Japan
- Prior art keywords
- current
- plugging
- circuit
- flowing
- 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.)
- Granted
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE: To detect the plugging operation precisely by providing the current detecting circuit which detects the difference between the current flowing via a field winding and the current flowing in a plugging diode and employing the output of this circuit.
CONSTITUTION: When the output value (the potential at a point C) of a differential amplifier 12 which amplifies the output signal of the current detecting circuit 11 becomes the value lower than the plugging detecting level, a comparator 25 detects the plugging brake. A capacitor 24 is discharged through a resistor 31, and the increase in the difference between the current IF flowing in a field winding 2 and the current IP flowing in a plugging diode 7 can be prevented. When the potential at the point C reaches the set value (overcurrent limiting value) in the current limiting circuit 32, a chopper 1 is cut off by a chopper control circuit 10. Furthermore, when the plugging diode 7 is shorted and failed, the failure is detected by a shorting failure detecting circuit 33, a transistor 40 is cut off, and the main circuit is stopped by the operation of an electromagnetic contactor 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15525879A JPS5681003A (en) | 1979-11-30 | 1979-11-30 | Method and apparatus for controlling electric car |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15525879A JPS5681003A (en) | 1979-11-30 | 1979-11-30 | Method and apparatus for controlling electric car |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5681003A true JPS5681003A (en) | 1981-07-02 |
JPS6220761B2 JPS6220761B2 (en) | 1987-05-08 |
Family
ID=15601976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15525879A Granted JPS5681003A (en) | 1979-11-30 | 1979-11-30 | Method and apparatus for controlling electric car |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5681003A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6363098U (en) * | 1986-10-09 | 1988-04-26 |
-
1979
- 1979-11-30 JP JP15525879A patent/JPS5681003A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6363098U (en) * | 1986-10-09 | 1988-04-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS6220761B2 (en) | 1987-05-08 |
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