A fuel cell system configured to supply electric power to load includes: a fuel cell; and a control unit configured to set target electric power to be generated by the fuel cell and control electric power generation by the fuel cell such that the fuel cell generates the target electric power. The control unit is configured to, when setting the target electric power using request electric power that the load requests the fuel cell to generate, execute a fluctuation suppression process for making a fluctuation of the target electric power smaller than a fluctuation of the request electric power.

An FCV includes: a driving device that generates traveling power by using at least one of electric power output from an FC system and electric power output from a battery; and a display device that presents a first indicator and a second indicator, the first indicator indicating a remaining amount of electric power to be output from the FC system, the second indicator indicating a remaining amount of electric power to be output from the battery. An amount of electric power that can be output from the FC system when the hydrogen tank is full is larger than an amount of electric power that can be output from the battery when the battery is fully charged. A presentation area of the first indicator is larger than a presentation area of the second indicator.

A vehicle control method and device. The vehicle control method comprises the steps of generating a first control instruction and a second control instruction when a vehicle is in a parking state, so that a fuel cell control unit (FCU) is controlled to perform charging control on a battery management system (BMS) through the first control instruction, a vehicle control unit (VCU) is controlled to perform power-off control on a target component through the second control instruction, and the target component is a non-essential operation component when the vehicle is charged in a parking state; and generating a third control instruction when the vehicle is in a normal operating state, so that the VCU controls the BMS according to the third control instruction. According to the method, under different vehicle states of the BMS, the control instructions are sourced from different control units; after the vehicle enters the parking charging mode, the non-essential components are enabled to stop working to lower a parasitic load, thereby improving the charging efficiency of the system.

A vehicle control method and device. The vehicle control method comprises the steps of generating a first control instruction and a second control instruction when a vehicle is in a parking state, so that a fuel cell control unit (FCU) is controlled to perform charging control on a battery management system (BMS) through the first control instruction, a vehicle control unit (VCU) is controlled to perform power-off control on a target component through the second control instruction, and the target component is a non-essential operation component when the vehicle is charged in a parking state; and generating a third control instruction when the vehicle is in a normal operating state, so that the VCU controls the BMS according to the third control instruction. According to the method, under different vehicle states of the BMS, the control instructions are sourced from different control units; after the vehicle enters the parking charging mode, the non-essential components are enabled to stop working to lower a parasitic load, thereby improving the charging efficiency of the system.

Methods and systems for an electric vehicle (EV) propulsion are provided. A method for operating an EV propulsion system is provided, in one example, that includes, while a traction battery assembly generates electric power, initiating start-up of a hydrogen fuel cell assembly based on a first battery state of charge (SOC) threshold and a first hydrogen fuel storage threshold to transition into a hybrid mode of operation. In the propulsion system, the traction battery assembly includes one or more traction batteries that are electrically coupled to one or more hydrogen fuel cells in the hydrogen fuel cell assembly via a distribution assembly, where the distribution assembly is electrically coupled to a traction motor.

Methods and systems for an electric vehicle (EV) propulsion are provided. A method for operating an EV propulsion system is provided, in one example, that includes, while a traction battery assembly generates electric power, initiating start-up of a hydrogen fuel cell assembly based on a first battery state of charge (SOC) threshold and a first hydrogen fuel storage threshold to transition into a hybrid mode of operation. In the propulsion system, the traction battery assembly includes one or more traction batteries that are electrically coupled to one or more hydrogen fuel cells in the hydrogen fuel cell assembly via a distribution assembly, where the distribution assembly is electrically coupled to a traction motor.

A control method includes acquiring the operation stop request of the fuel cell system, acquiring a next vehicle operation start timing, and calculating a first energy cost and a second energy cost at a predetermined timing after acquiring the operation stop request and the next vehicle operation start timing. The first energy cost is an energy cost required from the predetermined timing to completion of warming up of the fuel cell when a warm-up control is executed using the heater in accordance with the next vehicle operation start timing after the stop control is executed. The second energy cost is an energy cost required when an operation of the fuel cell is continued so as to maintain a temperature of the fuel cell at a warm-up temperature from the predetermined timing to the next vehicle operation start timing. The control method includes continuing the operation of the fuel cell such that the temperature of the fuel cell is maintained at the warm-up temperature while the first energy cost is larger than the second energy cost after the operation stop request is acquired.

Advanced vehicle control systems are disclosed. Within a vehicle system having several subsystem controllers dedicated to separate tasks in the vehicle, the subsystem controllers may use supplied control parameters. In this context, a centralized optimization unit is configured to receive prediction data, determine, within a prediction horizon, a modification to at least one supplied control parameter using the prediction data; and communicate the modification to the at least one supplied control parameter to at least one subsystem control unit.

A fuel cell system for air vehicles, wherein the fuel cell system comprises: a fuel cell, a fuel gas system for supplying fuel gas to the fuel cell, a potential sensor, and a controller; wherein the fuel gas system comprises a fuel gas supplier; wherein the controller determines whether or not a potential of the fuel cell measured by the potential sensor, is a reversal potential; and wherein, when the controller determines that the potential of the fuel cell is a reversal potential, the controller increases a fuel gas supply from the fuel gas supplier to the fuel cell.

To provide a fuel cell system configured to charge a battery with maintaining the independence and redundancy of a fuel cell and a battery as power sources. A fuel cell system for air vehicles, wherein the fuel cell system comprises a fuel cell, a battery, a motor and a controller; wherein the fuel cell and the battery are connected to the motor as independent power sources, and the motor includes a double three-phase winding that uses a double inverter; and wherein, when normal output is requested from the motor, the controller operates the motor by a predetermined first output from the fuel cell, and the controller charges the battery by a torque generated in the motor.