Patent ID: 8957639
Filing Date: 2015-02-17
Classification: G01R,H01M,H02H,Y02E

Abstract:
1. A battery management and protection system comprising: a central processing unit that controls aspects of the battery management and protection system; a plurality of modules each of which monitors at least one respective operational characteristic of a battery when the battery is coupled to the battery management and protection system, wherein each module determines whether the at least one respective operational characteristic is within a corresponding predetermined range, and wherein the modules collectively monitor battery voltage, battery current and battery temperature; a dedicated routing network; a timekeeper including a prescaler to generate synchronous pulse signals from an initial pulse signal, wherein each of the synchronous pulse signals has a different respective frequency F/n1 . . . F/nm, where n1 through nm are integers, and wherein the timekeeper generates the synchronous pulse signals independently of the central processing unit, wherein respective ones of the synchronous pulse signals are transmitted, independently of the central processing unit, over the dedicated routing network to the modules, wherein each module is arranged to select a respective one of the synchronous pulse signals based on information auto-loaded to registers during system start-up and, in response to the selected synchronous pulse signal, to perform a battery safety measurement, and wherein at least one of the modules is arranged to select a first one of the synchronous signals having a first frequency, and a second one of the modules is arranged to select a second one of the synchronous signals having a different second frequency.