Disclosed is a cooling apparatus of a fuel cell vehicle, including an air supply part, an air conditioning part that cools air discharged from the air supply part, and a valve provided at a rear end of the air supply part and that communicates cooled air discharged from the air supply part with a fuel cell part or a battery.

A cooling system for cooling a fuel cell on a vehicle includes a radiator, a branch portion connected to an outlet side of the radiator, a confluence portion connected to an inlet side of the radiator, a first passage and a second passage connected in parallel between the confluence portion and the branch portion, a fuel cell and a first pump provided in the first passage, a resistor and a second pump provided in the second passage, and a backflow preventer provided in the second passage. The first passage has no backflow preventer.

Described herein is a fuel cell and battery hybrid system (1) comprising one or more sets (2) of serially connected fuel cells (FC1-n). The one or more sets (2) of serially connected fuel cells (FC1-n) are further serially connected via a respective fuel cell series enhancer (3). The serially connected sets (2) are further connected in parallel with a battery (4) via a fuel cell power charge controller (5). Each respective set (2) of serially connected fuel cells (FC1-n) is further arranged be controlled by the fuel cell series enhancer (3) to operate electrically independent from other sets (2) of serially connected fuel cells (FC1-n) and at its own unique maximum power point or uniquely selected other operating point, regardless of the operating points of other sets (2) of serially connected fuel cells (FC1-n).

A drive system. The drive system includes a first partial drive system and a second partial drive system, each having at least one electric machine, at least one control electronics for controlling the at least one electric machine, an energy source and an energy source control unit for monitoring and controlling the energy source. The drive system includes a first drive control unit and a second drive control unit, the first drive control unit communicating with both the first partial drive system and the second partial drive system and being designed to control and monitor the drive system, and the second drive control unit communicating with both the first partial drive system and with the second partial drive system and being designed to assume the control and the monitoring of the drive system in a fault state of the first drive control unit.

a fuel cell system without a high pressure line of a hydrogen supplying system, including a gas charging line formed between a gas charging station and a high pressure vessel charged with gas by the gas charging station, and a gas supplying line formed between the high pressure vessel and a stack, includes: a regulator provided in the gas supplying line; a solenoid valve provided in the gas supplying line between the regulator and the high pressure vessel; and a check valve provided in a bypass line connecting one point of the gas supplying line between the regulator and the solenoid valve and one point of the gas charging line.

In an embodiment, a method of forming a cooling plate, comprises laser welding a plurality of weld lines to physically connect a first substrate and a second substrate wherein the plurality of weld lines forms an inflatable track; and inflating the inflatable track with an inflation fluid to form a cooling channel in the cooling plate. In another embodiment, the cooling plate can comprise a first substrate and a second substrate and a plurality of weld lines can form a fluid tight seal for a cooling channel located therebetween.

A safety management system for an aircraft, or a propulsion system thereof including a fuel cell assembly and a combustion engine, may include various sensors and controllers configured to execute a safety action. At least one sensor is configured to detect at least one operating parameter of the propulsion system, and a controller is configured to determine that the at least one operating parameter has achieved a safety threshold and to execute a safety action when the at least one operating parameter has achieved the safety threshold. The safety action is configured to control operation of the fuel cell assembly and to control operation of the combustion engine.

An apparatus and method, according to an exemplary aspect of the present disclosure includes, among other things, a battery pack having a coolant inlet and a coolant outlet, a coolant source to cool the battery pack, and a proportional valve in communication with the coolant inlet and the coolant outlet, and in communication with the coolant source. A battery control module controls the proportional valve such that a direction of flow is switchable at the coolant inlet and the coolant outlet based on temperatures at the coolant inlet and the coolant outlet to provide bi-directional cooling flow through the battery pack. The battery control module directly connects the coolant outlet to the coolant inlet via the proportional valve to bypass the coolant source in response to a predetermined condition.

To provide a fuel-efficient fuel cell system configured to eliminate flooding in a fuel-based gas flow path, etc. The fuel cell system is a fuel cell system comprising a first fuel cell stack, a second fuel cell stack, a fuel gas supplier, a first supply flow path, a first circulation flow path, a second supply flow path, a second circulation flow path, a first bypass flow path which includes a first on-off valve, a second bypass flow path which includes a second on-off valve, a temperature detector, a current detector, a voltage detector and a controller.

A bipolar plate for use in a fuel cell stack includes a first delimiting surface and a second delimiting surface that is arranged parallel to the first delimiting surface, wherein the delimiting surfaces are arranged spaced apart from one another and define an intermediate space, wherein the bipolar plate includes at least one fuel cell section having a flow field that has depressions that protrude into the intermediate space and is provided so as to make direct contact with a fuel cell, and the bipolar plate includes at least one cooling section that extends therefrom along the delimiting surfaces, wherein at least one heat pipe is arranged in the intermediate space and extends so as to transfer heat from the fuel cell section into the cooling section.