1
Kevin I Bertness: Energy management system for automotive vehicle. Midtronics, Westman Champlin & Kelly P A, December 18, 2001: US06331762 (198 worldwide citation)

A battery monitor is provided for use with a battery of an automotive vehicle. The battery monitor can provide real time battery condition measurements and can selectively control the charging of the battery through an alternator of the vehicle based upon the measured battery condition.


2
Kevin I Bertness, Michael E Troy: Vehicle electrical system tester with encoded output. Midtronics, Westman Champlin & Kelly, September 3, 2002: US06445158 (155 worldwide citation)

An automotive vehicle electrical system tester includes a starter motor or charging system voltage measurement circuit configured to measure a voltage of an electrical system of a vehicle. A microprocessor is configured to diagnose the electrical system as a function of the measured voltage and resp ...


3
Michael E Troy: Battery tester for JIS Standard. Midtronics, Westman Champlin & Kelly P A, November 3, 1998: US05831435 (155 worldwide citation)

A method and apparatus for testing JIS rated batteries is disclosed. A JIS battery type reference number is provided to a battery tester. Battery test information for the JIS rated battery is determined as a function of the JIS battery type reference number. The battery tester provides a battery tes ...


4
Kevin I Bertness, Stephen J McShane: Method and apparatus for charging a battery. Midtronics, Westman Champlin & Kelly P A, June 27, 2000: US06081098 (151 worldwide citation)

An apparatus for charging a battery includes a first electrical connection adapted to connect to a positive terminal of the battery and a second electrical connector adapted to connect to a negative terminal of the battery. An electrical charging source couples to the first and second electrical con ...


5
Kevin I Bertness: Electronic battery tester. Midtronics, Westman Champlin & Kelly P A, May 21, 2002: US06392414 (148 worldwide citation)

A microprocessor couples to a voltage sensor through an analog to digital converter. The voltage sensor is adapted to be coupled across terminals of a battery. A small current source is also provided and adapted to be coupled across the terminal to the battery. The current source is momentarily appl ...


6
Stephen J McShane, Kevin I Bertness, Keith S Champlin: Electronic battery tester with tailored compensation for low state-of charge. Midtronics, Westman Champlin & Kelly P A, October 13, 1998: US05821756 (148 worldwide citation)

Various embodiments of an improved electronic device for testing or monitoring storage batteries that may be only partially charged are disclosed. The device determines the battery's small-signal dynamic conductance in order to provide either a proportional numerical readout, displayed in appropriat ...


7
Stephen J McShane, Mark Hlavac, Kevin Bertness: Method and apparatus for detection and control of thermal runaway in a battery under charge. Midtronics, Westman Champlin & Kelly P A, November 12, 1996: US05574355 (147 worldwide citation)

A thermal runaway detection apparatus is provided for use during charging of a battery. The thermal runaway detection apparatus includes circuitry for determining internal resistance (impedance) or conductance (admittance) of the battery under charge. Detection circuitry detects an increase in inter ...


8
August G Klingbiel: Electronic battery testing device loose terminal connection detection via a comparison circuit. Midtronics, Westman Champlin & Kelly P A, January 7, 1997: US05592093 (143 worldwide citation)

An electronic battery testing device includes first and second electrical probes for coupling to first and second battery terminals, respectively, and electrical circuitry coupled to the electrical probes for providing an output related to battery condition. The probes each have a pair of electrical ...


9
Kevin I Bertness: Method and apparatus for auditing a battery test. Midtronics, Westman Champlin & Kelly P A, April 18, 2000: US06051976 (142 worldwide citation)

A method and apparatus for auditing condition of a storage battery performs a battery test on the storage battery to obtain a test result. Test condition information is obtained related to conditions of the battery test. The battery test result and the test condition information is combined into a c ...


10
Stephen J McShane, Kevin I Bertness: Method and apparatus for detecting a bad cell in a storage battery. Midtronics, Westman Champlin & Kelly P A, May 26, 1998: US05757192 (142 worldwide citation)

A method and apparatus for detecting a bad cell in a storage battery having a plurality of cells as provided. Input circuitry electrically couples to first and second terminals of the storage battery. Voltage measuring circuitry coupled to the input circuitry provides a voltage output related to a v ...