Patent ID: 11894538
Assignee: HYUNDAI MOTOR COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 5:
6. A fuel cell-battery system comprising:
a battery module including a battery configured to store electric power and a coolant line through which coolant circulates to cool the battery;
a fuel cell module including a hydrogen tank configured to store hydrogen, a fuel cell configured to produce the electric power using the hydrogen, and a hydrogen line configured to connect the hydrogen tank and the fuel cell to deliver the hydrogen from the hydrogen tank to the fuel cell; and
a heat exchange module through which the coolant line and the hydrogen line pass such that the coolant is cooled by heat exchange with the hydrogen and the hydrogen is heated by heat exchange with the coolant,
wherein the battery module further includes a coolant temperature acquisition device configured to obtain temperature of the coolant released from the battery and a battery controller electrically connected with the coolant temperature acquisition device,
wherein the fuel cell module further includes a bypass line through which the hydrogen in the hydrogen line is bypassed to the fuel cell before entering the heat exchange module and a fuel cell controller electrically connected to the coolant temperature acquisition device and the battery controller, and
wherein the fuel cell controller
allows the hydrogen to pass through the heat exchange module, when the obtained coolant temperature is higher than a target coolant temperature and
allows the hydrogen to flow along the bypass line, when the obtained coolant temperature is lower than or equal to the target coolant temperature.