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:
May. 20, 2025
Filed:
Jul. 06, 2021
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Andreas Ertlmeier, Wolnzach, DE;
Julian Wiesmeier, Deisenhofen, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A device and method for increasing the range of an electric vehicle. A control unit estimates a remaining range of the high-voltage battery based on a state-of-charge of the high-voltage battery. The remaining range is displayed on a display. If the control unit determines, during driving in the normal mode, that the remaining range results from an estimation error that over-estimates the remaining range, then without correcting the remaining range displayed, the control unit automatically switches the electric vehicle from a normal mode to an emergency mode in which a cell voltage below a first cell voltage limit is useable by the electric motor. The cell voltage below the first cell voltage limit is not useable by the electric vehicle in the normal mode. The first cell voltage limit is associated with a lower state-of-charge limit at which the remaining range is displayed as a no-remaining-range indicator.