Temperature control apparatus for exhaust gas sensor of vehicle, has electric heater to heat exhaust gas sensor and temperature control unit to control switching unit to maintain temperature of gas sensor at preset value

摘要

The apparatus (100a) has an electric heater (119) to heat an exhaust gas sensor (107). A switching unit (125a) turns on and off a supply of electric power to the heater. A temperature control unit (120a) controls the switching unit to maintain temperature of the sensor at a preset value. The control unit has a heat control unit to control the sensor in accordance with the temperature of the sensor.