Patent ID: 7308883
Filing Date: 2007-12-18
Classification: F02B,Y10T

Abstract:
1. A vehicular accessory driving apparatus comprising: a main engine that drives a vehicle; an auxiliary engine having a smaller displacement than the main engine; a vehicular accessory that is driven by the main engine or the auxiliary engine; a fuel consumption predictor device that calculates a first predicted fuel amount that is predicted to be consumed by the main engine in order to drive the vehicular accessory if the vehicular accessory is driven by the main engine during an operation of the main engine, and a second predicted fuel amount that is predicted to be consumed by the auxiliary engine if the vehicular accessory is driven by the auxiliary engine; and a switching device that carries out switching between driving force sources so that the vehicular accessory is driven by the auxiliary engine if the first predicted fuel amount is greater than the second predicted fuel amount, and so that the vehicular accessory is driven by the main engine if the first predicted fuel amount is less than or equal to the second predicted fuel amount.