Excavator and method of controlling excavator
US11260906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jul 20, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6615
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An excavator includes a lower travelling body; an upper turning body mounted on the lower travelling body; a hydraulic pump installed in the upper turning body; a travelling hydraulic motor that is a variable displacement type motor configured to move the lower travelling body by being driven by hydraulic oil discharged by the hydraulic pump; and a control device configured to control a motor capacity of the travelling hydraulic motor so as to be switchable between a plurality of levels. The control device switches the motor capacity to a low rotation setting upon detecting that an operation for changing a travelling direction of the lower travelling body is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.