Title:
MACHINE SPEED LIMIT CONTROL
Document Type and Number:
WIPO Patent Application WO/2012/127221
Kind Code:
A3
Abstract:
An engine forming part of a machine is controlled in order to effect a predetermined machine speed limit. One or more engine control parameters are determined based on a theoretical engine speed limit that is based on the predetermined machine speed limit and variable machine parameters. This comprises one or more of: varying a control software engine speed limit from a first engine speed value to a desired engine speed limit value that is based on the theoretical limit; setting the control software engine speed limit at a locked engine speed limit value that remains constant when the theoretical limit is within a set range; setting an engine governor gain based on the theoretical limit; setting control software engine speed filter parameters based on the theoretical limit; and determining control commands to prevent the machine transmission from changing gears based on the engine speed limit with a hysteresis applied.
Inventors:
ANANTHASIVAN VENKATRAMANAN V (GB)
BABBE ALEXANDER (GB)
CRAWFORD CHRISTOPHER (GB)
SMITH MICHAEL D (GB)
BABBE ALEXANDER (GB)
CRAWFORD CHRISTOPHER (GB)
SMITH MICHAEL D (GB)
Application Number:
PCT/GB2012/050607
Publication Date:
December 27, 2012
Filing Date:
March 20, 2012
Export Citation:
Assignee:
PERKINS ENGINES CO LTD (GB)
ANANTHASIVAN VENKATRAMANAN V (GB)
BABBE ALEXANDER (GB)
CRAWFORD CHRISTOPHER (GB)
SMITH MICHAEL D (GB)
ANANTHASIVAN VENKATRAMANAN V (GB)
BABBE ALEXANDER (GB)
CRAWFORD CHRISTOPHER (GB)
SMITH MICHAEL D (GB)
International Classes:
F02D31/00; B60W10/06; F16H61/16
Foreign References:
| DE3618844A1 | 1987-12-10 | |||
| EP2143917A1 | 2010-01-13 | |||
| EP0256268A1 | 1988-02-24 | |||
| US5113821A | 1992-05-19 |
Attorney, Agent or Firm:
BOULT WADE TENNANT (70 Gray's Nn RoadLondon, Greater London WC1X 8BT, GB)
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