The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2007
Filed:
Dec. 12, 2005
Sixten Berglund, Torslanda, SE;
Anders Eriksson, Gothenburg, SE;
Marcus Steen, Angered, SE;
Soren Udd, Nodinge, SE;
Sixten Berglund, Torslanda, SE;
Anders Eriksson, Gothenburg, SE;
Marcus Steen, Angered, SE;
Soren Udd, Nodinge, SE;
Volvo Lastvagnar AB, Gothenburg, SE;
Abstract
Method and arrangement for providing a vehicle having a combustion engine () with valves () adapted to have variable valve timing and/or valve lift height. The valves are provided with operating devices () that are controlled by electronic controlling devices (), which are arranged, while the vehicle is being driven, with the aid of entered information about at least the gradient of the road and the throttle position, to calculate future resistance to forward motion and the period of time to a future transient in the engine's operating condition, for example in association with a future change of engine operating mode and/or a future gear change in a gearbox () connected to the engine. The controlling devices are arranged to control valve timing and/or the valve lift height during the period of time for optimization of the engine's performance, once the transient has arisen.