Honda Motor Co., Ltd.
HEATING DEVICE AND CONTROL METHOD OF HEATING DEVICE

Abstract:

A heat generator includes: a high-frequency power source configured to generate a high-frequency power with a variable frequency; a heating element connected to the high-frequency power source; and a controller configured to set the high-frequency power to a frequency such that the high-frequency power with the frequency maximizes a quotient obtained by dividing a measured temperature change of the heating element by a temperature change of the heating element when the heating element is supplied with a DC power equal to the high-frequency power supplied to the heating element, the controller being configured to drive the high-frequency power source to generate the high-frequency power having approximately the frequency. The heating element may include a resistor, and the quotient may be maximized at the frequency of 2 to 30 MHz.