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AssigneeNanjing Xiaozhuang University
InventorsYuzheng Lu, Senlin Yan, Ligang Ma
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An extended-range fuel cell electric vehicle power device includes a driving motor, a bidirectional converter, a chopper, a power cell, a fuel cell, a high-pressure hydrogen storage tank, an electric control valve, a controller, an accelerator pedal and a brake pedal. An output of the driving motor is connected to a transmission shaft of an electric vehicle through a speed change gearbox, and an input of the driving motor is connected to an alternating current output end of the bidirectional converter; a direct current input end of the bidirectional converter is connected in parallel to an output of the power cell and an output of the chopper, and an input of the chopper is connected to a power source output of the fuel cell.
An extended-range fuel cell electric vehicle power device, comprising a driving motor (1), a bidirectional converter (2), a chopper (3), a power cell (4), a fuel cell (5), a high-pressure hydrogen storage tank (6), an electric control valve (7), a controller (8), an accelerator pedal (9) and a brake pedal (10), wherein:
A method for controlling an extended-range fuel cell electric vehicle power device, wherein when a given power Pin is positive, an electric vehicle works in a driving state, when the given power Pin is negative, the electric vehicle works in a braking state, an actual output power Pout of a driving motor drives the electric vehicle, a signal of the actual output power Pout of the driving motor is fed back to an input end and compared with the given power Pin to form a feedback control system, the signal of the Pout and a signal of the Pin are inputted into a comparator to obtain a power error signal ΔP, and differentiation processing is performed on the power error signal ΔP to obtain a power change rate signal dP/dt, and two controlled quantities y1 and y2 are obtained from the ΔP and the dP/dt by a control algorithm, wherein the controlled quantity y1 controls an opening degree of an electric control valve, thus controlling an output electric power of a fuel cell;
Dependencies are inferred from the claim text.