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:
Sep. 23, 2025
Filed:
Apr. 26, 2023
Daf Trucks N.v., Eindhoven, NL;
Luc Hubertus Josephina Worms, Eindhoven, NL;
Maarten Robertus Ingmar Nieuwenhuijze, Vlijmen, NL;
DAF Trucks N.V., Eindhoven, NL;
Abstract
A pressure monitor is arranged to calculate a pre-turbine pressure. The monitor is programmed to derive a normalized turbine speed, normalized for a pre turbine temperature, and a heat capacity ratio of exhaust gas before the turbine as first inputs; determine a turbine power normalizing factor as a second input; determine an actual turbocompressor power value as a third input; derive, for said first inputs, a linear relation between a turbine expansion ratio and a turbine power value normalized by the second input; and equate the turbine power value to the actual turbocompressor power; thereby deriving the pre turbine pressure from said linear relation, as an output.