CONTROLLER AND CONTROL METHOD

The present disclosure obtains a controller and a control method capable of appropriately improving safety of a lean vehicle. According to the controller and the control method, the controller has a control section () configured to perform a brake control to increase a braking force of the lean vehicle (). The control section () performs the brake control based on a collision possibility that is determined in response to an output result from an environment sensor (). The control section (), in the brake control, controls the braking force based on posture information of the lean vehicle ().