Dual mode hybrid hydrostatic driveline
US10377220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2015 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jan 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid driveline which may be operated in a hydrostatic drive mode and a direct drive mode and a method of operating a hybrid driveline in a hydrostatic drive mode and a direct drive mode is provided. The hybrid driveline comprises a power source, a first hydrostatic unit drivingly engaged with the power source, a second hydrostatic unit selectively drivingly engaged with a vehicle output and in fluid communication with the first hydrostatic unit, an accumulator assembly in fluid communication with the first hydrostatic unit and the second hydrostatic unit, and a clutching device selectively drivingly engaged with the vehicle output and one of the first hydrostatic unit and the second hydrostatic unit. The hybrid driveline provides the benefits of a series hybrid arrangement and a parallel hybrid arrangement, reduces torque interruptions during operation and shifting procedures, and increases an efficiency of a vehicle the driveline is incorporated in.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.