Title:
ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD FOR WORKING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/108444
Kind Code:
A1
Abstract:
If the rotational speed of an engine is within the range Rmin to Rmax and falls below the average value for the rotational speed of the engine within a prescribed period of time, a transmission controller limits the output torque of the engine in conformity with an engine output torque limit line (LL) and suppresses unnecessary fuel injection. As a result, the output torque of the engine is limited when travelling stably, thus limiting the unnecessary consumption of fuel and improving fuel efficiency.
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Inventors:
SAITO YOSHIAKI (JP)
TAKEDA SHU (JP)
TAKEDA SHU (JP)
Application Number:
PCT/JP2011/054198
Publication Date:
September 09, 2011
Filing Date:
February 24, 2011
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
SAITO YOSHIAKI (JP)
TAKEDA SHU (JP)
SAITO YOSHIAKI (JP)
TAKEDA SHU (JP)
International Classes:
F02D41/04; F02D1/02; F02D29/00; F02D45/00
Domestic Patent References:
| WO2005014990A1 | 2005-02-17 |
Foreign References:
| JP2005163605A | 2005-06-23 | |||
| JPH11223142A | 1999-08-17 | |||
| JP2004150306A | 2004-05-27 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: