摘要:
To provide a sensor abnormality determining apparatus that detects an abnormality of a temperature sensor for detecting a power element temperature, even when the difference between the power element temperature and the temperature of the cooling water for cooling the power element is low. This sensor abnormality determining apparatus is applied to an inverter (3) that is provided with: a power element (3a); a cooling water circulation path (42) having cooling water (41) for cooling the power element (3a) circulating therein; a temperature sensor (51) that detects a temperature of the power element (3a); and a water temperature sensor (52) that detects a temperature of the cooling water (41) circulating in the cooling water circulation path (42). The sensor abnormality determining apparatus is configured such that the apparatus is provided with: an abnormality determining section (5a), which determines that the temperature sensor (51) is abnormal when a temperature difference (AT) between the temperature detected by means of the temperature sensor (51) and the water temperature detected by means of the water temperature sensor (52) is larger than a previously set determination temperature difference; and a determination temperature setting section (5b) whereby the determination temperature difference for the time when the temperature detected by means of the temperature sensor (51 ) is lower than the water temperature detected by means of the water temperature sensor (52) is set at a lower value than the determination temperature difference for the time when the temperature detected by means of the temperature sensor (51) is higher than the water temperature detected by means of the water temperature sensor (52).
摘要:
The present invention relates to a control device (10, 11) for radiators (1), convector heaters or the like for a heating system, said radiator (1) comprising a fluid inlet (2, 211) at inlet temperature (T i ), a fluid outlet (3, 311) at outlet temperature (To) and at least a heat exchange portion (8a, 8b, 8c, 8d, 8e) at exchange temperature (T e ); said control device (10, 11) comprising a metering device comprising: - first detection means (12, 112, 13, 113, 18, 118, 22, 122) to detect the fluid flow through said flow inlet (2, 211), said first detection means (12, 112, 13, 113, 18, 118, 22, 122) being associated to first measuring means (18, 118, 22, 122) of the time interval between the starting time and the ending time of said flow through said flow inlet (2, 211); - second detection means to detect said inlet temperature (T i ) and/or said outlet temperature (To) and/or said exchange temperature (T e ), said second detection means being associated to second measuring means using at least one of said detected temperature to calculate temperature difference of said radiator (1); - means for calculate the energy consumption and/or the energy transfer of said radiator (1), said means for calculation being associated to said first (18, 118, 22, 122) and second measuring means.
摘要:
A heat flux sensor 10 is installed in such a way that heat flux emanating from a biological object present at a predetermined position is detectable. It is determined whether or not a biological object is present at the predetermined position by comparing sensing results of the heat flux sensor with determination criteria. The determination criteria is preset according to heat flux that can be sensed when a biological object is present at the predetermined position. When the sensing results of the heat flux sensor satisfy the determination criteria, in other words, when the heat flux sensed by the heat flux sensor is the heat flux emanating from a biological object, it is determined that a biological object is present at the predetermined position. Consequently, it is possible to realize accurate detection of a biological object.
摘要:
There is provided a heat flux sensor 10 with first and second interlayer connection members 130, 140 composed of different metals from each other of which metal atoms maintain a predetermined crystal structure embedded in first and second via holes 101, 102 of a thermoplastic resin made insulating substrate 100, the first and the second interlayer connection members are connected in series alternately, and a control unit 20 that performs abnormality determination of a heating element 30 disposed in a vehicle. The heat flux sensor 10 is provided to the heating element 30 and outputs a sensor signal corresponding to heat flux between the heating element 30 and an outside air, and the control unit 20 determines based on the sensor signal that there is abnormality in the heating element 30 when the heat flux between the heating element 30 and the outside air is out of a predetermined range.