| CPC H01M 8/04029 (2013.01) [H01M 8/04067 (2013.01); H01M 8/04723 (2013.01); H01M 8/04768 (2013.01)] | 10 Claims |
|
1. A fuel cell cooling system mounted on a vehicle, the fuel cell cooling system comprising:
a coolant flow path inside which a coolant flows, the coolant flow path including a cooling unit flow path, a fuel cell flow path, and a heat generating body flow path, an upstream end of the fuel cell flow path and an upstream end of the heat generating body flow path being connected to a branched portion provided at a downstream end of the cooling unit flow path, and a downstream end of the fuel cell flow path and a downstream end of the heat generating body flow path being connected to a merged portion provided at an upstream end of the cooling unit flow path;
a cooling unit configured to cool the coolant in the cooling unit flow path;
a fuel cell configured to be cooled through heat exchange with the coolant in the fuel cell flow path;
a heat generating body configured to generate heat when actuated and configured to be cooled through heat exchange with the coolant in the heat generating body flow path;
a first pump configured to pump the coolant in the fuel cell flow path to a downstream side;
a second pump configured to pump the coolant in the heat generating body flow path to a downstream side; and
a control circuit configured to control the fuel cell, the first pump, and the second pump, wherein
the control circuit is configured to actuate the fuel cell and the first pump during travel of the vehicle,
the control circuit is configured to actuate the second pump while the heat generating body is actuated, and
the control circuit is configured to perform, when the vehicle is started, a first process of actuating the first pump with the second pump stopped, and a second process of actuating the second pump in addition to the first pump when a temperature of the coolant in the fuel cell flow path or the cooling unit flow path exceeds a first reference value during the first process.
|