Speed control apparatus of working vehicle and speed control method thereof
US6564548B2 · kind B2 · utility
9Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Sep 20, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2296
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A speed control apparatus and method of a working vehicle which can reduce a working speed and a traveling speed of the vehicle to a desired speed range in correspondence to a change of working conditions at a time of a vehicle crane operation. A controller sets an optional hydraulic pump absorbing curve when an operator selects the crane operation mode. When the speed is adjusted by the operator, a pump tilt and rotation angle is automatically controlled to a pump absorbing torque in correspondence to the crane working speed along the optional pump absorbing torque curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.