MULTIPLE VEHICULAR CHARGE SOURCES AND LOADS

摘要

A charge controller for a vehicle passive energy system employs an interface to a plurality of charge sources including intermittent sources, such as vehicle mounted solar photovoltaic (PV) panels and the vehicle engine and alternator, and an interface to a plurality of charge loads, such as a comfort heating ventilation, refrigeration and air conditioning (HVAC) system and auxiliary vehicle loads. Charge logic computes which of the plurality of sources will supply the charge current and which of the plurality of loads will receive the charge current, and a switch responsive to the charge logic will direct the charge current from at least one of the plurality of sources to at least one of the loads, the plurality of charge sources mutually exclusive from simultaneously powering a common load.

主权项

1. In a vehicle electrical system including at least one passive source and a primary load, a method of maintaining vehicle electrical loads, comprising:
identifying voltage characteristics of a vehicle primary load, the primary load including a storage element operable for starting the vehicle; identifying voltage characteristics of an auxiliary source provided by an auxiliary power system, the auxiliary power system including at least one passive source; converting, if an auxiliary load is not satisfied and a primary source has available excess power, the electrical characteristics of the available excess power to correspond to the auxiliary load; and directing the converted excess power to the auxiliary load.