Importance

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Abstract

An in-vehicle device temperature adjustment apparatus of the present invention includes: a first temperature adjustment circuit (2) circulating a first heat medium to adjust a temperature of a first device (4); a second temperature adjustment circuit (3) circulating a second heat medium to adjust a temperature of a second device (5); and a mixing valve (16) that is provided between the first temperature adjustment circuit (2) and the second temperature adjustment circuit (3), and mixes the first and second heat media to flow out to each of the temperature adjustment circuits (2, 3) as a mixed heat medium. The temperature adjustment apparatus controls a mixing valve (16) by calculating a target outflow temperature tgtTout of the mixed heat medium flowing out to the second temperature adjustment circuit (3), calculating the ratio of the first heat medium contained in the mixed heat medium as a flow ratio R based on inflow temperatures Tin1 and Tin2 of the first and second heat media and an outflow temperature Tout of the mixed heat medium, calculating an opening degree correction coefficient K from the flow ratio R and an opening degree θ of the mixing valve (16), calculating a target flow ratio tgtR from the inflow temperatures Tin1 and Tin2 and a target outflow temperature tgtTout, and calculating a target opening degree tgtθ of the mixing valve (16) from the opening degree correction coefficient K and the target flow ratio tgtR.

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First Claim