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. 10, 2024
Filed:
May. 16, 2019
Volvo Truck Corporation, Gothenburg, SE;
Lionel Farres, Heyrieux, FR;
Jean Sébastien Carle, Lyons, FR;
Volvo Truck Corporation, Gothenburg, SE;
Abstract
A control method for controlling a spring loaded brake actuator () comprising a first chamber (Ch) to receive a parking brake pressure (PBR) acting against a main spring (), and a second chamber (Ch) to receive a service brake pressure (SB) for applying a service brake force, the method comprising a circumstantial selection of one control law among a set of control laws comprising two or more compound control laws: —where the first compound control law (CL), known as anti-compound mode, is such the service brake pressure (SB) is electronically controlled such that the resulting total braking force (F) does not exceed a first upper limit (UL) corresponding to the force of the main spring () when the parking brake pressure (PBR) is substantially null, —where the second compound control law (CL), known as controlled-compound mode, is such that the service brake pressure (SB) is electronically controlled such that the resulting total braking force (F) does not exceed a second upper limit (UL) higher than the first upper limit.