Working vehicle
US10947701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2246
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a working vehicle capable of, while reducing fuel consumption, improving traveling performance only when high traveling performance is required.A wheel loader 1 comprises: an engine 3; a variable displacement HST pump 41; a variable displacement HST motor 42 connected to the HST pump 41 through a closed circuit; pressure sensors 72A, 72B configured to load pressure of the HST motor 42; and a controller 5, wherein the controller 5 is configured to, in a case of determining that a load pressure detection value P is included in a predetermined pressure range of greater than load pressure Pα corresponding to flat ground traveling and smaller than load pressure Pγ corresponding to an excavation operation, increase maximum rotational speed of the engine 3 only within the predetermined pressure range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.