Temperature management device

A temperature management device comprising:

• a cooling flow path through which a cooling fluid sent out from a heat source is supplied in order of a radiator and a first pump and returned to the heat source;
• a bypass flow path that includes a second pump so as to cause a cooling fluid on an upstream side of the radiator in the cooling flow path to merge at a downstream side of the first pump;
• a first sensor flow path including a narrow tube in which a part of a cooling fluid sent out by the first pump is sent out;
• a second sensor flow path including a narrow tube in which a part of a cooling fluid sent out by the second pump is sent out;
• a merging path sensor configured to detect a temperature of a cooling fluid flowing in a merging path in which the first sensor flow path and the second sensor flow path merge;
• and
• a controller configured to simultaneously drive the first pump and the second pump, and separately control driving forces of the first pump and the second pump on a basis of a detection temperature detected by the merging path sensor.