| 摘要 |
PROBLEM TO BE SOLVED: To operate a fuel cell at an operation point with high energy conversion efficiency. SOLUTION: A control part calculates required output of an inverter from taking in accelerator opening (S12). The control part takes out output current- output voltage characteristic corresponding to taking in gas amount, calculates the highest point of energy efficiency from the characteristic taken out, decides as the operation point of a fuel cell, and calculates the output power of the fuel cell at the operation point (S16-S20). The control part decides output voltage required to a battery, based on the difference between inverter requiring output and fuel cell output power and SOC of the battery (S24). The control part controls a DC/DC converter and adjusts the output voltage of the DC/DC converter, so that the output voltage of the battery becomes the decided output voltage (S28). The control part controls the inverter and causes the electric power corresponding to required output in a motor (S30) to be consumed. |
