Pressure control method and pressure control device for braking cylinder of rail vehicle, and rail vehicle
US12384344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | May 8, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/228
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed are a pressure control method and a pressure control device for a braking cylinder of a rail vehicle, and the rail vehicle. The method includes the following steps: acquiring the air charge-release volume of the braking cylinder of the rail vehicle and the air flowrate of the braking cylinder; determining the charge-release duration according to the air charge-release volume of the braking cylinder and the air flowrate of the braking cylinder, and controlling the charge-release working duration of the air charge-release solenoid valve according to the air charge-release duration; when the working duration of the air charge-release solenoid valve reaches the charge-release duration, acquiring the predictive pressure of the braking cylinder, and controlling the working state of the air charge-release solenoid valve according to the predictive pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.