Honda Motor Co., Ltd.
Vehicle power supply system and cooling circuit

Abstract:

A vehicle power supply system includes: a plurality of battery modules; a high-voltage system equipment and a cooling circuit having a plurality of battery module cooling units for cooling the plurality of battery modules, and a high-voltage system equipment cooling unit for cooling the high-voltage system equipment. In the cooling circuit, the plurality of battery module cooling units are disposed in parallel, a branching portion is provided on an upstream side of the plurality of battery module cooling units, a merging portion is provided on a downstream side of the plurality of battery module cooling units, and the high-voltage system equipment cooling unit is provided on a downstream side of the merging portion.