Output power split hybrid electric drive system
US7000717B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Apr 26, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/918
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power split hybrid wheel drive system of the present invention comprises a planetary gear train (16) coupled to the output shaft of a driving engine (12). A primary motor or generator (18) is coupled to an output shaft of the planetary gear train (16) for receiving power therefrom, and a secondary motor or generator (30, 32) is associated with each driven vehicle wheel (14) to provide an electrical power pathway. A mechanical differential gear train (20) is coupled between the output shaft of the planetary gear train (16) and each driven vehicle wheel; (14) to provide a mechanical power pathway, while a mechanical clutch (22) and brake system (24) is configured to regulate the mechanical power routed to the differential gear train (20). A control system (48) is included to regulate the flow of electrical power between the primary motor (18) and secondary motors or generators (30, 32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.