In one aspect, an apparatus and a method for monitoring a hydrogen storage system of a vehicle to always monitor the hydrogen storage system of the vehicle are provided. The apparatus comprises a first temperature sensor that measures an internal temperature of a hydrogen tank, a second temperature sensor that measures an outdoor temperature, a comparator that determines whether a hydrogen leak occurs based on the result of comparing the internal temperature with the outdoor temperature and outputs a wake-up signal, and a controller that performs failure diagnosis of a hydrogen storage system, when receiving the wake-up signal.

In one aspect, disclosed are a hydrogen leak sensing device and method for a fuel cell vehicle. The device comprises a processor configured to control a valve of a hydrogen tank, wherein the processor may calculate a state of fuel (SOF) of the hydrogen tank when the valve is closed and a SOF of the hydrogen tank when the valve is opened, and determine whether hydrogen leak has occurred based on the calculated SOFs.

According to an embodiment, a control system includes a fuel cell configured to generate electric power using an anode and a cathode, a power storage device capable of storing the electric power generated by the fuel cell, auxiliary equipment to which the electric power is able to be supplied, and a controller configured to control operations of the fuel cell and the auxiliary equipment. The controller performs control so that the electric power is consumed by the auxiliary equipment in accordance with a power storage state of the power storage device at the time of power generation of the fuel cell and adjusts one or both of a timing and a degree at which electric power to be consumed by the auxiliary equipment is limited on the basis of temperature information associated with the auxiliary equipment.

A fuel cell apparatus may include a stack, a reformer configured to generate reformed gas, a burner, a water supply tank configured to store cooling water, a burner air blower configured to draw in external air and then to blow the air, a vertex tube configured to convert the air into heated air and cooled air, a three-way valve configured to supply the air from the burner air blower selectively to the vertex tube or the burner, a first heat exchanger configured to exchange heat between the air discharged from the vertex tube and the cooling water, a second heat exchanger configured to exchange heat between the air discharged from the vertex tube and the reformed gas, and a four-way valve configured to supply the heated air and the cooled air to the first and second heat exchangers.

The present disclosure relates to a nozzle heating device including a heating cover configured to cover a periphery of a nozzle configured to supply a charging fluid, and an induction heating unit disposed in the heating cover and configured to heat the nozzle by induction heating, thereby effectively inhibiting freezing of the nozzle.

A hydrogen filling method for a fuel cell vehicle includes filling a hydrogen tank of the fuel cell vehicle with hydrogen using a hydrogen dispenser by sequentially using a low-pressure storage tank of the fuel cell vehicle, a medium-pressure storage tank of the fuel cell vehicle, and a high-pressure storage tank of the fuel cell vehicle.

On a start of a fuel cell system, (i) when the temperature of a high-voltage secondary battery obtained from a temperature sensor is higher than a predetermined reference value, a controller of the fuel cell system is configured to set an output voltage on a step-down side of a DC-DC converter to a higher voltage than a voltage of a low-voltage secondary battery and subsequently start an FC auxiliary machine using electric power from the high-voltage secondary battery. (ii) When the temperature of the high-voltage secondary battery obtained from the temperature sensor is equal to or lower than the predetermined reference value, on the other hand, the controller of the fuel cell system is configured to set the output voltage on the step-down side of the DC-DC converter to a lower voltage than the voltage of the low-voltage secondary battery and subsequently start the FC auxiliary machine using the electric power from the high-voltage secondary battery.

A power supply apparatus according to an example embodiment includes an abnormal state determiner configured to determine a maximum output of a fuel cell by determining whether there is an abnormality in the fuel cell, a fuel cell controller configured to control output power of the fuel cell within the maximum output based on demand power of a load, an energy storage configured to charge with power by receiving the power from the fuel cell and supply the power to the load, a charging state determiner configured to determine a charging state of the energy storage based on a charging amount of the energy storage, and a storage controller configured to control charging and discharging of the energy storage based on a difference between the demand power of the load and the output power of the fuel cell.

A system and method for controlling a fuel cell system. An anode tail gas oxidizer (ATO) receives air and fuel exhaust streams from one or more fuel cell stacks of the fuel cell system. The one or more fuel cell stacks provide current to one or more loads. An ATO temperature signal is used to control at least one of a fuel inlet flow to the one or more fuel cell stacks or the current provided to the one or more loads.

The fuel cell includes a power generation unit, a plurality of storage containers that are detachable and house hydrogen absorbing alloy, a heat medium passage through which a heat medium flows, and a temperature control unit for heating the storage containers by controlling the temperature of the heat medium and causing the heat medium to flow. The temperature control unit can carry out a first temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a first temperature, and a second temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a second temperature. The temperature control unit determines whether the second temperature mode is to be carried out or not based on the pressure or the temperature of an attached storage container when a new storage container is attached.