Drive system control device for working vehicle
US8838348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Oct 20, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/221
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a working vehicle, there is dissolved a risk that a black smoke is discharged, a knocking is generated and an engine stall is caused, if a lot of load is applied to a rotary tiller during various works while traveling at a low speed. In the working vehicle provided with an engine which is mounted to a travel machine body, a common rail type fuel injection device which injects fuel to the engine, and a continuously variable transmission which shifts power from the engine, an engine driving point Q (Q1→Q2) relating to a rotating speed N and a torque T of the engine is changed in such a manner that the rotation speed come to a high speed side rotating speed N2 dissolving an overload, and a change gear ratio of the continuously variable transmission is modified and regulates in such a manner that a vehicle speed V of the travel machine body does not change in the case that the overload acts on the engine of having a low speed N1 in the rotating speed N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.