Engine load control device of work vehicle
US8126621B2 · kind B2 · utility
4Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2203/0605
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In an engine load control device of a work vehicle, an output of an engine is transmitted to a hydraulic actuator via a variable displacement type hydraulic pump. A controller is configured to calculate, based on a target rotational speed of the engine detected by a target rotational speed detecting portion and an actual rotational speed of the engine detected by an actual rotational speed detecting portion, a variation rate per unit time of a difference between the detected results, and to adjust the maximum absorbing torque of the hydraulic pump according to the magnitude of the variation rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.