TWI798684B

A controller (60) of a straddled vehicle (1) performs a control in which an oxygen sensor heater control and an idling stop/start control are integrated. When an engine (10) shifts from a driving state to an idling stop state while a power switch (70) is in an on-state, the controller stops electric power supply to a heater (22) of an oxygen sensor (20), irrespective of the temperature of a sensor element (21) of the oxygen sensor. After the first operation related to a rider's intention to run is performed after the shift to the idling stop state, the controller restarts the electric power supply to the heater of the oxygen sensor, irrespective of the temperature of the sensor element. After the shift to the idling stop state and until the first operation related to the rider's intention to run is performed after the shift to the idling stop state, the controller does not return the state of the engine to the driving state and does not restart the electric power supply to the heater of the oxygen sensor.