TEMPERATURE-RAISING DEVICE AND TEMPERATURE-RAISING METHOD FOR IN-CAR BATTERY

摘要

The present invention relates to a temperature-raising device and a temperature-raising method to raise the temperature of a battery loaded in a vehicle. In a temperature-raising device for a battery loaded in a vehicle, the temperature-raising device comprises: a battery temperature obtaining unit formed to obtain the temperature of the battery loaded in the vehicle; an environment temperature obtaining unit formed to obtain an environment temperature; a heater formed to raise the temperature of the battery, and a controller i) to turn on or off the heater by a comparison result of the battery temperature obtained by the battery temperature obtaining unit and a predetermined threshold value and ii) to reduce and change the threshold value depending on the reduction of the environment temperature obtained by the environment temperature obtaining unit.