Tractor with hybrid power system
US9637000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Apr 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/903
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tractor includes an internal combustion engine for delivering torque, wheels or tracks for imparting a propulsive force to the ground, and a power takeoff shaft for delivering torque to implements attached thereto. The power takeoff shaft is driven by a mechanical drive connection to the engine. An electrical motor/generator is drivingly connected to the engine, and at least one electrical motor is arranged to deliver a propulsion force to the wheels or tracks. The motor is electrically connected to, and powered by, the electrical motor/generator. A battery is connected to the electrical motor/generator and to the electrical motor so that electrical energy can be passed therebetween. The motor/generator can also operate as a motor so that the power takeoff shaft is at least partially powered by electrical energy from the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.