On-board air conditioner control device, and vehicle
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 29, 2022
Grant Date -
Jul 8, 2021
app pub date -
Apr 17, 2019
filing date -
Apr 17, 2019
priority date (Note) -
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Abstract
This on-board air conditioner control device comprises: a PTC heater which is contained in a high-voltage circuit and generates heat by means of power supplied from a high-voltage battery; a micro-controller which is contained in a low-voltage circuit and controls the power supplied to the PTC heater from the high-voltage battery; a current detection sensor which is contained in the high-voltage circuit and outputs a voltage signal indicating a value for the current flowing through the PTC heater; a V/f conversion unit which is contained in the high-voltage circuit and converts the voltage signal outputted by the current detection sensor to a frequency signal; and a digital isolator which transmits the frequency signal to the micro-controller while preserving electrical insulation between the V/f conversion unit and the micro-controller.
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