A vehicle power system including a fuel cell auxiliary power unit for providing clean, efficient power to a vehicle. The system generally includes a fuel cell with a first DC output and a heat output, a pressure vessel adapted to contain and provide pressurized hydrogen to the fuel cell, an electrical storage unit with a DC input coupled to the first DC output of the fuel cell. The electrical storage unit also has a second DC output. An inverter is coupled to the second DC output of the electrical storage unit to receive power, the inverter having a first AC output. The system can provide heat, AC power, and DC power to the vehicle.

A control device for a fuel cell vehicle includes a power limiter limiting power of a fuel cell when a temperature correlation value correlated to a temperature of the fuel cell indicates that the temperature is equal to or higher than a temperature threshold, a calculation unit calculating a weight of a towed vehicle, a gradient acquirer acquiring upward gradients at respective points on a planned traveling route, a predictor predicting whether the power of the fuel cell is limited when the fuel cell vehicle is traveling along the planned traveling route in a towing travel state, and a controller issuing, when the predictor predicts that the power of the fuel cell is limited, an alert that a vehicle speed of the fuel cell vehicle is expected to decrease when the fuel cell vehicle is traveling along the planned traveling route in the towing travel state.

A control device for a fuel cell vehicle includes a power limiter limiting power of a fuel cell when a temperature correlation value correlated to a temperature of the fuel cell indicates that the temperature is equal to or higher than a temperature threshold, a calculation unit calculating a weight of a towed vehicle, a gradient acquirer acquiring upward gradients at respective points on a planned traveling route, a predictor predicting whether the power of the fuel cell is limited when the fuel cell vehicle is traveling along the planned traveling route in a towing travel state, and a controller issuing, when the predictor predicts that the power of the fuel cell is limited, an alert that a vehicle speed of the fuel cell vehicle is expected to decrease when the fuel cell vehicle is traveling along the planned traveling route in the towing travel state.

An insulation fault response method for a fuel cell vehicle, comprising: when a vehicle starts, detecting whether a fuel cell is in a startup state or not; when the fuel cell is not in the startup state, reading a first insulation resistance detected by a fuel cell control unit and a second insulation resistance detected by a cell management system; when the first insulation resistance indicates that the vehicle is in an insulation fault, executing a first control policy; and when the second insulation resistance indicates that the vehicle in an insulation fault, executing a second control policy, wherein the first control policy is different from the second control policy, and wherein when the first insulation resistance is less than a first threshold and/or the second insulation resistance is less than a second threshold, the vehicle is in an insulation fault.

An operational system of the present disclosure is an operational system for a plurality of fuel cell electric vehicles. The operational system is equipped with a decision unit that decides a single operational route based on supply amounts of hydrogen available from a plurality of hydrogen stations respectively, from among a plurality of candidates of an operational route of each of the fuel cell electric vehicles, and a scheduling unit that schedules the filling of each of the fuel cell electric vehicles with hydrogen at the hydrogen station or hydrogen stations included on the decided operational route. The decision unit decides the new operational route based on post-change available supply amounts of hydrogen in the case where the supply amounts of hydrogen available from the respective hydrogen stations change when each of the fuel cell electric vehicles runs on the decided operational route.

A motor-driving control system includes an actuator configured to generate rotational force by driving received current, a current provider configured to provide current to the actuator while repeatedly turning on and off the current at a preset period and duty, and a controller configured to estimate a rotation position or a rotation speed of the actuator in a section in which the current of the current provider is turned on or off and to control the current provider to follow a speed command based on the estimated rotation position or rotation speed.

A method for determining a coasting torque, a storage medium, and a computer program are provided, this method includes: obtaining operating parameters of an electric vehicle when a fuel cell system of the electric vehicle is out of operation and the electric vehicle enters a coasting state; determining a theoretical recovery torque and a correction torque of the electric vehicle according to the operating parameters, where the correction torque includes an additional torque of the fuel cell system; and correcting the theoretical recovery torque according to the correction torque to obtain the coasting torque of the electric vehicle. The coasting torque is used for energy recovery of the electric vehicle during a coasting process of the electric vehicle.

The invention provides a range extension system including a range extension assembly, a fuel supply unit, and a second fuel storage device. The range extension assembly has a first fuel input portion and a second fuel input portion. The first fuel input portion is configured to receive a first fuel source. The second fuel input portion is configured to receive a second fuel source different from the first fuel source. The second fuel source and the first fuel source are mixed in the range extension assembly to generate an electrical output. The fuel supply unit is configured to provide the first fuel source to the first fuel input portion. The second fuel storage device is configured to store and provide the second fuel source to the second fuel input portion.

A method of controlling an air compressor motor for a fuel cell vehicle is provide. The method includes calculating a counter electromotive force constant of the air compressor motor based on a voltage and a current of the air compressor motor for the fuel cell vehicle supplying air to a fuel cell stack and a rotation speed of the air compressor motor. The method additionally includes determining whether a permanent magnet of the air compressor motor is demagnetized based on a result of comparison between the calculated counter electromotive force constant value and a pre-set counter electromotive force constant design value.

A method of controlling an air compressor motor for a fuel cell vehicle is provide. The method includes calculating a counter electromotive force constant of the air compressor motor based on a voltage and a current of the air compressor motor for the fuel cell vehicle supplying air to a fuel cell stack and a rotation speed of the air compressor motor. The method additionally includes determining whether a permanent magnet of the air compressor motor is demagnetized based on a result of comparison between the calculated counter electromotive force constant value and a pre-set counter electromotive force constant design value.