| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a failure diagnosis device capable of further improving the reliability of a boosting system which controls an output voltage on the basis of atmospheric pressure, to provide a control device of a boosting circuit, and to provide a vehicle. <P>SOLUTION: A boosting converter 242 (boosting circuit) and a boosting control part 310 are mounted to the vehicle. A failure diagnosis part 311 makes a diagnosis on the failure of an atmospheric pressure sensor 250 on the basis of the detection result (atmospheric pressure PA) of the atmospheric pressure sensor 250, and the detection result (intake pressure PI) of an intake voltage sensor 126 for detecting engine intake pressure which changes according to the change of atmospheric pressure. The boosting control part 310 controls the output voltage (voltage VH) of the boosting converter 242 on the basis of the detection result of the atmospheric pressure sensor 250 and the detection result of the intake pressure sensor 126. <P>COPYRIGHT: (C)2008,JPO&INPIT |
