Idle control device for fuel cell vehicle
First Claim
1. An idle control device for a fuel cell vehicle, comprising:
- a power storage unit for supplying electric power to a driving motor of the fuel cell vehicle and/or auxiliary devices of the fuel cell vehicle for assisting the output of the fuel cell, and for storing generated energy of the fuel cell and regenerative energy obtained by a regenerative operation of the driving motor; and
a fuel cell driving device for supplying reaction gases for power generating and a fuel cell drive control device for controlling operation of the fuel cell driving device;
wherein the fuel cell driving device stops the power generation of the fuel cell by stopping supply of the reaction gases when the fuel cell vehicle is in a predetermined idling state.
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Accused Products
Abstract
In order to improve the fuel consumption efficiency of the fuel cell vehicles, a control flow is provided, in which, first, it is determined whether the vehicle speed VST is lower than a predetermined speed ISTP (step S01), whether a motor output PMCMD including the driving motor and the motor for driving the air compressor is less than a predetermined motor output ISTPPM (step S04), whether the brake is in the ON state (step S05), and whether the terminal voltage Vst of the power storage unit is higher than predetermined values VISTPH and VISTPL (step S06). When all of the determinations are “YES”, a permission flag for executing the idle stop F_ISTP is set to “1”, and if any of them is “NO”, the permission flag F_ISTP is set to “0”.
35 Citations
7 Claims
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1. An idle control device for a fuel cell vehicle, comprising:
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a power storage unit for supplying electric power to a driving motor of the fuel cell vehicle and/or auxiliary devices of the fuel cell vehicle for assisting the output of the fuel cell, and for storing generated energy of the fuel cell and regenerative energy obtained by a regenerative operation of the driving motor; and
a fuel cell driving device for supplying reaction gases for power generating and a fuel cell drive control device for controlling operation of the fuel cell driving device;
wherein the fuel cell driving device stops the power generation of the fuel cell by stopping supply of the reaction gases when the fuel cell vehicle is in a predetermined idling state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification