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. 28, 2019
Filed:
Feb. 15, 2013
Method and system for estimating the insulation resistance between a battery and an electrical earth
Renault S.a.s., Boulogne-Billancourt, FR;
Lionel Cordesses, Montigny-le-Bretonneux, FR;
Michel Mensler, Montigny-le-Bretonneux, FR;
Sid-Ali Randi, Chambery, FR;
Daniel Chatroux, Teche, FR;
Sebastien Carcouet, Vif, FR;
RENAULT S.A.S., Boulogne-Billancourt, FR;
Abstract
A method for estimating insulation resistance between a terminal of a battery and an electrical ground, including: connecting a measuring circuit to one terminal of the battery, the measuring circuit including a resistance of known value and a capacitance; application of a known input signal having an input voltage; measurement of an output voltage between the ground and a point located between the resistance of known value and the capacitance; determination of a complex impedance of a dipole of the capacitance and the insulation resistance or determination of parameters of a differential equation; and determination of the insulation resistance from the parameters of the differential equation or the complex impedance.