JPS55127801A - Controlling system for electric car - Google Patents
Controlling system for electric carInfo
- Publication number
- JPS55127801A JPS55127801A JP3328179A JP3328179A JPS55127801A JP S55127801 A JPS55127801 A JP S55127801A JP 3328179 A JP3328179 A JP 3328179A JP 3328179 A JP3328179 A JP 3328179A JP S55127801 A JPS55127801 A JP S55127801A
- Authority
- JP
- Japan
- Prior art keywords
- current
- chopper
- relay
- circuit
- power
- 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
Links
Landscapes
- Motor And Converter Starters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To make fine inching running possible even for an electric car having a filter circuit in a power supply by expenditing the current-decreasing speed in proportion to the decreasing input current to the filter circuit.
CONSTITUTION: Power is supplied to a driving motor A through a filter Fil, and the motor is controlled by a current control system ACR such as a chopper and the like. When a power-supply current IS is small and an output voltage VIS from a current detector (DCCT)s does not reach the Zener voltage of a constant-voltage diode ZD, a transistor Tr1 is not conducted, a relay Ry1 is not operated, and an integrating circuit TI is not connected to a relay Ry which turns the gate of a chopper CH off. Therefore, when a switch S is switched from a contact 1 to a contact 2 by a circuit-breaking signal, a transistor Tr is turned off, the relay Ry is turned off, the gate to the chopper CH is stopped, and a motor current IM becomes zero. In this constitution, an operator can make a fine inching running.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3328179A JPS55127801A (en) | 1979-03-23 | 1979-03-23 | Controlling system for electric car |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3328179A JPS55127801A (en) | 1979-03-23 | 1979-03-23 | Controlling system for electric car |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127801A true JPS55127801A (en) | 1980-10-03 |
Family
ID=12382138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3328179A Pending JPS55127801A (en) | 1979-03-23 | 1979-03-23 | Controlling system for electric car |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1299927C (en) * | 2003-12-29 | 2007-02-14 | 泛亚汽车技术中心有限公司 | High-voltage DC insulating monitoring circuit for electric automobile |
-
1979
- 1979-03-23 JP JP3328179A patent/JPS55127801A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1299927C (en) * | 2003-12-29 | 2007-02-14 | 泛亚汽车技术中心有限公司 | High-voltage DC insulating monitoring circuit for electric automobile |
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