| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle temperature estimation device of which the estimation accuracy for an exhaust system temperature is improved.SOLUTION: A vehicle temperature estimation device comprises an acquisition unit 21 acquiring engine correlation temperatures WT and AT correlating with a temperature of a stopped engine 11. Furthermore, the vehicle temperature estimation device comprises an estimation unit 22 estimating a catalyst temperature Tof a catalyst device 5 provided in an exhaust system of the engine 11 based on an inlet temperature Testimated in primary delay processing in which an exhaust manifold temperature Tat timing of stopping the engine 11 is assumed as an initial temperature and the engine correlation temperatures WT and AT are assumed as target temperatures. |
