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:
Mar. 02, 2021
Filed:
Oct. 25, 2018
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Ferdinand Wiesbeck, Munich, DE;
Arthur Huelsmann, Munich, DE;
Eric Berger, Freising, DE;
Johann Engl, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A method and a device operate a hybrid vehicle having an electric energy store, an electric propulsion system and an internal combustion engine. A special operating strategy that can be initiated for the internal combustion engine allows the state of charge of the energy store to be increased when predefined acoustic conditions are met. The special operating strategy has a performance-enhancing effect by raising the load point until acoustic limits are reached which are ascertained in real time, can be predefined in a variable manner and are defined in accordance with ascertained potentials for masking specific acoustic events. The disclosed method and device for carrying out the method raise the acoustic limits for controlling the load point of the internal combustion engine at least to the level that is currently admissible as a result of at least one acoustically relevant event being masked, possible acoustically relevant events being defined by vehicle-internal sources of influence, the characteristic spectra of which are known from empirical assessments and the occurrence of which is controlled by vehicle-internal systems.