Outside air temperature determination apparatus

Details Outside air temperature determination apparatus Outside air temperature determination apparatus

2008-06-13

2009-08-11

Caputo, Lisa M (Department: 2855)

Thermal measuring and testing

Temperature measurement

Combined with diverse art device

C374S001000, C374S141000

Reexamination Certificate

active

07572055

ABSTRACT:
The present invention provides an outside air temperature determination apparatus including an outside air temperature detection means (3) disposed in a vehicle for detecting an outside air temperature; a control means (6) having a first determination processing portion (61) which performs a first determination processing to obtain a determination value based on the detection temperature detected by the outside air temperature detection means (3); and a speed detection means (4) for detecting a speed of the vehicle, wherein the control means (6) includes a second determination processing portion (62) which predicts a real outside air temperature based on a variation on the detection temperature detected by the outside air temperature detection means (3) and performs a second determination processing to obtain a determination value based on the predicted outside air temperature; and controls the second determination processing portion (62) to perform the second determination processing (STEP6) prior to the first determination processing (STEP7) performed by the first determination processing portion (61) when the speed detected by the speed detection means (3) is accelerated equal to or greater than a predefined speed V0from a speed lower than the predefined speed V0(STEP5). According to the outside air temperature determination apparatus of the present invention, the outside air temperature can be determined instantly and appropriately even though there is a great deviation between the detection temperature and real outside air temperature.

REFERENCES:
patent: 5737243 (1998-04-01), Wallrafen
patent: 6974251 (2005-12-01), DeRonne et al.
patent: 2001/0043147 (2001-11-01), Yamada et al.
patent: 2003/0015159 (2003-01-01), Suzuki
patent: 2006/0209921 (2006-09-01), Brown et al.
patent: 2008/0196487 (2008-08-01), Suzuki
patent: 01-212637 (1989-08-01), None

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