Battery-powered vehicle with AC driven traction and pump motors for mining applications
US7053568B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2004 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Sep 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A battery-powered vehicle for transporting a mined payload or supplies over the roadways existing in or around an underground mine, includes variable voltage, variable frequency drivers that convert DC voltage from a battery into an AC voltage for driving AC induction motors of a front wheel drive system of the vehicle, and a further variable frequency driver that converts DC voltage from the battery into an AC voltage for driving an AC pump motor for supplying hydraulic fluid to hydraulically operated components of the vehicle. A controller controls the operation of the variable voltage variable frequency drivers in response to commands supplied to the controller by an operator of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.