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:
Apr. 28, 1998
Filed:
Jul. 16, 1996
Wesley A Rogers, Grosse Pointe Park, MI (US);
Electronic Development, Inc., Grosse Pointe Park, MI (US);
Abstract
Method and apparatus for accurately measuring charge storage system operating conditions in a vehicle. A measurement circuit produces an electrical response at an output which varies linearly with voltage levels measured via a remote connection to the battery terminals. The circuit is calibrated to provide that electrical levels are produced at the output only over a voltage range above a specified voltage level at the battery terminals in order to improve the resolution in detecting these levels using a standard electrical level detector such an ammeter or voltmeter. The measurement circuit is connected to a display circuit for indicating at least one charge storage system operating condition based on the terminal voltage of the battery. Alternatively, the measurement circuit may be connected to a display circuit for indicating the specific gravity of the battery based on the terminal voltage of the battery.