| US 7,527,112 B2 | ||
| Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power | ||
| Satoshi Aoyagi, Shimotsuke (Japan); Hibiki Saeki, Utsunomiya (Japan); and Kuniaki Ojima, Yuki (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Mar. 31, 2006, as Appl. No. 11/396,194. | ||
| Claims priority of application No. 2005-102559 (JP), filed on Mar. 31, 2005. | ||
| Prior Publication US 2006/0222909 A1, Oct. 05, 2006 | ||
| Int. Cl. B60K 1/00 (2006.01) | ||
| U.S. Cl. 180—65.3 [180/65.2; 180/65.8; 903/944] | 9 Claims |
| 1. A fuel cell vehicle for being propelled by a propulsive motor, said fuel cell vehicle having an electric system in which
a fuel cell and an electric storage device are connected in parallel to each other with respect to the propulsive motor and
connected to the propulsive motor through a power converter, comprising:
a DC-to-DC converter connected closer to the electric storage device than a junction where the fuel cell and the electric
storage device are connected in parallel to each other;
reactive gas supply means for supplying a reactive gas to said fuel cell;
failure detecting means for detecting a failure of said DC-to-DC converter;
response limiting means for limiting the response of electric power output from said fuel cell when said failure detecting
means detects a failure of said DC-to-DC converter; and
regenerative electric power limiting means for limiting regenerative electric power of said propulsive motor to a value equal
to or smaller than a prescribed failure regenerative electric power limit value upon the failure of said DC-to-DC converter.
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