CONTROLLER AND CONTROL METHOD

The present invention obtains a controller and a control method capable of appropriately emitting an emergency braking signal in a straddle-type vehicle. A controller () and the control method according to the present invention control operation of a straddle-type vehicle () in which anti-lock brake control for a front wheel () and anti-lock brake control for a rear wheel () are executed. An acquisition section of the controller () acquires an anti-lock brake actuation state showing whether the anti-lock brake control is actuated for any of the wheels (). A determination section of the controller () determines a threshold value on the basis of the anti-lock brake actuation state. An output section of the controller () outputs an emergency braking signal command in the case where deceleration of the straddle-type vehicle () is higher than the threshold value.