JPS5464310A - Safety device for electric motor vehicle - Google Patents
Safety device for electric motor vehicleInfo
- Publication number
- JPS5464310A JPS5464310A JP13050777A JP13050777A JPS5464310A JP S5464310 A JPS5464310 A JP S5464310A JP 13050777 A JP13050777 A JP 13050777A JP 13050777 A JP13050777 A JP 13050777A JP S5464310 A JPS5464310 A JP S5464310A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- electric motor
- motor vehicle
- cause
- energized
- 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
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To reversely move an electric motor vehicle when the vehicle collides with a wall during forward travel by operating a limit switch to engage an electric brake regardless of the position of an accelerator.
CONSTITUTION: When a manual forward switch LsAF is closed, a magnet coil MF is energized to cause a contact mf to make contact with contact b, a motor DM to normally rotate, and a vehicle to run forward. When an electric motor vehicle collides with a wall or the like, the limit switch LsHD is operated to cause its contact X2 to be disconnected, and its contacts X1 and X3 to be connected so as to deenergize the coil MF. Thus, the contact mf is closed with a contact a. Then, a magnet coil MR is energized to cause a contact mr to make contact with a contact b so as to reversely rotate a motor. Since the contact X3 is connected, the base potential of a transistor Tr1 is dropped via a resistor R3 regardless of the position of an accelerator resistor AR to control the gate of a chopper CH through an oscillator OSC.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13050777A JPS5464310A (en) | 1977-10-31 | 1977-10-31 | Safety device for electric motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13050777A JPS5464310A (en) | 1977-10-31 | 1977-10-31 | Safety device for electric motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5464310A true JPS5464310A (en) | 1979-05-24 |
Family
ID=15035925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13050777A Pending JPS5464310A (en) | 1977-10-31 | 1977-10-31 | Safety device for electric motor vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5464310A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS465258A (en) * | 1970-04-25 | 1971-11-27 | ||
JPS4995513A (en) * | 1973-01-13 | 1974-09-10 |
-
1977
- 1977-10-31 JP JP13050777A patent/JPS5464310A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS465258A (en) * | 1970-04-25 | 1971-11-27 | ||
JPS4995513A (en) * | 1973-01-13 | 1974-09-10 |
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