Fuel cell system installed in vehicle
A fuel cell system, fuel cell technology, applied in the direction of fuel cell, fuel cell application, fuel cell control, etc.
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no. 1 Embodiment approach
[0016] A1. Structure of fuel cell system
[0017] figure 1 It is a schematic configuration diagram showing a fuel cell system 100 as an embodiment of the present invention. The fuel cell system 100 is equipped in a vehicle 200 . Such as figure 1 As shown, the fuel cell system 100 includes a fuel cell 10 as a power supply source to a load, a secondary battery 50, a fuel cell converter 20 (hereinafter also referred to as "FDC20"), an FC relay circuit 30, and a secondary battery including a secondary battery. Power control unit 40 (hereinafter also referred to as "PCU40") of battery converter 45 (hereinafter also referred to as "BDC45"), control device 60, secondary battery relay circuit 70, auxiliary machine 90, auxiliary machine battery 91. Auxiliary machine inverter 28, air conditioner 29, and air compressor MG1 and drive motor MG2 as loads.
[0018] The fuel cell 10 is a cell that generates electricity by reacting hydrogen and oxygen as reaction gases. The vehicle 200 eq...
no. 2 Embodiment approach
[0049] image 3 It is a figure which shows the process of the limp running control in 2nd Embodiment. In the second embodiment, the difference from the first embodiment is that in the first embodiment figure 2 The process of step S80, step S82, step S84, and step S86 is provided between step S60 and step S90. Since the configurations of the fuel cell system 100 and the vehicle 200 of the second embodiment and other steps in the limp running control are the same, description thereof will be omitted.
[0050] After energizing the reactive current to the air compressor MG1 in step S60, in step S80, the control unit 61 checks whether the continuous energization time from the start of energizing the reactive current to the air compressor MG1 is a predetermined first time Judge above T1. The continuous energization time is, for example, the elapsed time from the energization of the reactive current in step S40. The first time T1 is obtained in advance through experiments and si...
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