CPC F01N 3/2013 (2013.01) [F01N 3/101 (2013.01); F01N 2240/16 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1621 (2013.01)] | 6 Claims |
1. An electronic device for purifying exhaust gas comprising:
a sensor module comprising a first sensor module and a second sensor module;
a heating device;
a memory; and
a processor operatively coupled to the sensor module, the heating device, and the memory, the processor configured to:
control the heating device such that a catalytic converter of a vehicle is heated,
measure a first air-fuel ratio of the exhaust gas passing through the catalytic converter using the first sensor module during heating of the catalytic converter,
measure a second air-fuel ratio of the exhaust gas exiting the catalytic converter using the second sensor module during heating of the catalytic converter,
identify a purification efficiency of the catalytic converter by comparing the first air-fuel ratio and the second air-fuel ratio,
determine whether the purification efficiency exceeds a reference efficiency, and
when the purification efficiency exceeds the reference efficiency, control the heating device such that heating of the catalytic converter is ended based on the air-fuel ratio of the exhaust gas.
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