Intermediate car electric coupler control circuit for subway vehicle
US12202530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2020 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Jan 16, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L15/0036
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An intermediate car electric coupler control circuit for a subway vehicle includes a coupling state relay, a power supply circuit for a decoupling electromagnetic valve, a first power supply circuit for an electric coupler control relay, a second power supply circuit for an air path and electric coupler module control electromagnetic valve, and a third power supply circuit for a bus control contactor. A coupler coupling operation is performed exactly according to a sequence of a mechanical coupling, an air path conduction, an electric coupler extension, and a medium- and low-voltage bus closing, wherein contacts of electric couplers are prevented from being damaged. A coupler decoupling operation is performed exactly according to a sequence of a contact heavy-current removal, an electric coupler withdrawal, an air path disconnection and a mechanical decoupling, wherein the contacts are prevented from being damaged by a heavy current arcing and a discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.