Fuel cell-battery system and control method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorWoo Jung Kwon
Life of this patent
Estimating the term…
Abstract
A fuel cell-battery system includes: a battery module including a battery that stores electric power and a coolant line through which coolant circulates to cool the battery; a fuel cell module including a hydrogen tank that stores hydrogen, a fuel cell that produces the electric power using the hydrogen, and a hydrogen line that connects 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.
Claims11
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 fuel cell module further includes
- an external heat exchanger disposed on the hydrogen line between the heat exchange module and the hydrogen tank and configured to heat the hydrogen flowing in the hydrogen line, and
- a return line configured to return the hydrogen passing through the external heat exchanger to an upstream side of the external heat exchanger with respect to a direction in which the hydrogen flows in the hydrogen line.
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.
Dependencies are inferred from the claim text.