Fuel-cell vehicle
A fuel-cell vehicle includes a fuel cell and a secondary battery. A circulation flow passage causes a coolant to circulate between the fuel cell and a radiator. A bypass flow passage passes through the secondary battery. One end of the bypass flow passage is connected to an upstream side of the radiator and the other end thereof is connected to a downstream side of the radiator of the circulation flow passage. A controller switches a switching valve such that the coolant flows to the radiator side when a coolant temperature is higher than a predetermined temperature threshold value, and switches the switching valve such that the coolant flows to the bypass flow passage side when the coolant temperature is lower than the temperature threshold value.
1. A fuel-cell vehicle comprising:
a fuel cell;
a secondary battery;
a radiator;
a circulation flow passage configured to cause a coolant to circulate between the fuel cell and the radiator;
a bypass flow passage passing through the secondary battery, one end of the bypass flow passage being connected to the circulation flow passage on an upstream side of the radiator and the other end of the bypass flow passage being connected to the circulation flow passage on a downstream side of the radiator;
a switching valve configured to switch a direction in which the coolant flows between a radiator side and a bypass flow passage side, the switching valve being provided at a junction between the circulation flow passage and the bypass flow passage on an upstream side of the radiator;
a first temperature sensor configured to measure a coolant temperature, the coolant temperature being a temperature of a coolant passed through the fuel cell;
a second temperature sensor configured to measure a secondary battery temperature, the secondary battery temperature being the temperature of the secondary battery; and
a controller configured to switch the switching valve to the bypass flow passage side when the coolant temperature is lower than a predetermined temperature threshold value and the coolant temperature is higher than the secondary battery temperature, and
wherein when the coolant temperature is not lower than the predetermined temperature threshold value and the coolant temperature is not higher than the secondary battery temperature, the controller being configured to switch the switching valve to the radiator side.