To maintain a driver's condition adaptable to the traveling environment by generating a flavor appropriate to the driver's condition.
When the driver's condition is determined as a hyperprosexia condition, the flavor of a sedative aromatic is intermittently released to promptly relieve the driver's tension by relatively lengthening the release period of the flavor and relatively shortening the release halt period of the flavor (S15). When determined as an unthinking condition, the flavor of the sedative aromatic is reduced from the release amount in the hyperprosexia condition to maintain the unthinking condition by relatively shortening the release period of the flavor and relatively lengthening the release period of the flavor to control the release period of the flavor to such a degree whether or not the driver notices the flavor (S17) and, in addition, surely preventing the driver's vigilance from declining by releasing the flavor of the sedative aromatic near the driver's nose as appropriate (S18).
KOBAYASHI MIYUKI
MATSUO NORIYOSHI
| JP2000301964A | 2000-10-31 | |||
| JPH01214368A | 1989-08-28 | |||
| JPH11310054A | 1999-11-09 | |||
| JPH06255358A | 1994-09-13 | |||
| JPH0642965A | 1994-02-18 | |||
| JPH09254742A | 1997-09-30 | |||
| JP2000233684A | 2000-08-29 | |||
| JP2002370559A | 2002-12-24 |