BATTERY TEMPERATURE CONTROL DEVICE

摘要

Provided is a battery temperature control device configured to automatically heat a battery (1) with a battery-driven heater (2) so that the battery does not freeze at a minimum electric power consumption when the battery is out of use. The battery temperature control device predicts, based on a combination of a battery temperature Tbat and an outside air temperature Tatm, a predictive time that the battery temperature Tbat is likely to be less than a first set temperature Tbat1, while the battery temperature Tbat is higher than or equal to the first set temperature Tbat1 at which there is no risk of freezing (step S13), and sets the predictive time as the next controller startup time ”t (step S14), and determines whether or not the battery temperature has fallen to below the first set temperature (i.e., Tbat