Abstract: A method and system are disclosed for limiting the voltage provided by a generator in the event of a regulator or field coil short circuit failure in an automotive vehicle. The voltage provided by the generator is sensed and a corresponding voltage level is generated. The voltage level is then compared to a predetermined voltage threshold. If the voltage level exceeds the predetermined voltage threshold, the high-side field coil switch is cycled by the controller so as to control the voltage provided by the generator. The electronic components of the vehicle are protected from over-voltage damage, and the battery is prohibited from overcharging.

Abstract: An arrangement for heating and cooling a vehicle battery includes a thermal chamber shaped to hold the vehicle battery. The thermal chamber includes a floor and three walls and is positioned against a fender of the vehicle so that the fender forms a fourth wall of the chamber. The thermal chamber includes an inlet opening for receiving air and an outlet opening for expelling air. The inlet opening receives air from a first inlet duct which transports ambient air from outside of the engine compartment, and from a second inlet duct which transports air from an exhaust manifold of the engine. A temperature controlled damper directs air from either the first inlet duct or the second inlet duct into the inlet opening. An outlet duct transports air expelled through the outlet opening into the engine intake manifold. A filter positioned in the thermal chamber filters the air expelled through the outlet duct.