| 摘要 |
PROBLEM TO BE SOLVED: To reduce a sense of discomfort of an occupant by preventing an air quantity rate of the air blowing-out toward the occupant from being changed all at once in switching the modes from the foot mode to bi-level mode in warm-up control during winter time. SOLUTION: At the initial time of warm-up control, foot mode is executed at first, a first linear bi-level mode is executed for timer time t1 when a prescribed condition is met, a fixed bi-level mode for maintaining a uniform upper and lower air blow-out quantity rate is executed for timer time t2, and a second linear bi-level mode is executed. By the first and second linear bi-level modes, the air blow-out quantity rate from a foot opening and a face opening is changed little by little with an elapse of time duration, and the first and second linear bi-level modes are blow-out modes for smoothly switching the modes from the foot mode to a fixed bi-level mode. COPYRIGHT: (C)2004,JPO
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