Patent Number: 7,612,524

Title: Motor vehicle battery disconnect circuit having electronic disconnects

Abstract: An electronic disconnect switch module (12) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices (30A, 30B, 32A, and 32B). The source terminal of one device of each pair is connected to vehicle load circuits (27), the source terminal of the other device of each pair is connected to the vehicle battery bank (16), and the drain terminals of the devices of each pair are connected in common. The module also has a microcontroller (34) that interfaces the switch devices with the vehicle electrical system. Four feature groups are provided: Vehicle Electrical System Protection, Battery Charge Control, Battery Disconnect, and Battery Monitoring.

Inventors: Howell; Clayton M. (Fort Wayne, IN), Jervis; John D. (Fort Wayne, IN), Kelwaski; H. Edward (Craigville, IN)

Assignee: International Truck Intellectual Property Company, LLC

International Classification: H02J 7/14 (20060101)

Expiration Date: 1/03/02017