Abstract: The present disclosure provides a controller and a control method that execute an adaptive cruise control appropriately in a group riding. According to the present disclosure, an execution section (22) of a controller (20) executes an adaptive cruise control based on a surrounding environment information that is information about a surrounding environment of the motorcycle (1). The execution section (22), in the adaptive cruise control, controls a speed of the motorcycle (1) automatically regardless of an accelerating/decelerating operation by a rider of the motorcycle (1) and executes a distance maintenance control to keep a distance between the motorcycle (1) and a target vehicle at a target distance. An identification section (23) of the controller (20) identifies a first convoy including the motorcycle (1) in a group riding in which the motorcycle (1) travels in a group of a plurality of motorcycles (2) forming at least the first convoy and a second convoy separated from each other.

Abstract: The present invention obtains a controller and a control method capable of appropriately executing adaptive cruise control of a straddle-type vehicle. In the controller and the control method according to the present invention, when braking forces are generated on at least one of wheels of the straddle-type vehicle during the adaptive cruise control, in which the straddle-type vehicle is made to travel according to a distance from the straddle-type vehicle to a preceding vehicle, motion of the straddle-type vehicle, and a rider's instruction, at a braking start time point at which the braking force starts being generated on at least one of the wheels, braking force distribution between the front and the rear wheel is brought into an initial state where the braking force is generated on the front wheel.

Abstract: 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 (62) configured to perform a brake control to increase a braking force of the lean vehicle (100). The control section (62) performs the brake control based on a collision possibility that is determined in response to an output result from an environment sensor (44). The control section (62), in the brake control, controls the braking force based on posture information of the lean vehicle (100).

Abstract: The present invention provides a controller and a control method that improve safety of a lean vehicle. The controller (60) has a control section (62) and a setting section (63). The control section (62) performs a brake control to increase a braking force of the lean vehicle (100) based on a collision possibility that is determined in response to an output result from an environment sensor (44). The setting section (63) sets a distribution of braking force between the braking force applied to a front wheel (3) and the braking force applied to a rear wheel (4) in the brake control. In the brake control, the control section (62) controls the braking force applied to the front wheel (3) and the braking force applied to the rear wheel (4) based on the distribution of braking force set by the setting section (63).

Abstract: The present invention obtains a controller and a control method capable of appropriately executing automatic emergency deceleration operation of a straddle-type vehicle. In the controller according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at a braking start time point at which a braking force starts being generated on at least one of wheels, braking force distribution between the front and rear wheels is brought into an initial state where the braking force is generated on the front wheel. In the control method according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at the braking start time point at which the braking force starts being generated on at least one of the wheels, the braking force distribution between the front and rear wheels is brought into the initial state where the braking force is generated on the front wheel.

Abstract: The present invention obtains a controller and a control method capable of appropriately assisting with driving by a rider. In the controller and the control method according to the present invention, an acquisition section of a controller (60) acquires yaw rate information of a traveling straddle-type vehicle (100), and in a control mode in which behavior control operation to make the straddle-type vehicle (100) automatically decelerate or automatically accelerate is performed, an execution section of the controller (60) changes the behavior control operation according to the yaw rate information.

Abstract: A controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like is disclosed. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a lean angle of the motorcycle.

Abstract: The present invention obtains a controller and a control method capable of appropriately assisting with driving by a rider. In the controller and the control method according to the present invention, an acquisition section of a controller (60) acquires lateral acceleration information of a traveling straddle-type vehicle (100), and in a control mode in which behavior control operation to make the straddle-type vehicle (100) automatically decelerate or automatically accelerate is performed, an execution section of the controller (60) changes the behavior control operation according to the lateral acceleration information.

Abstract: A controller for a motorcycle includes a mode change section that changes a mode to a first mode in a state where a temperature of a rear-wheel friction brake mechanism is lower than a first prescribed temperature and to a second mode in a state where the temperature of the rear-wheel friction brake mechanism is higher than the first prescribed temperature during automatic deceleration in the automatic cruise operation. In the case where the braking forces generated on the rear wheel in the first mode and the second mode are compared under a condition that the same deceleration is generated in the motorcycle by the automatic deceleration, in a state where the deceleration is at least less than a first reference amount, the braking force generated on the rear wheel in the second mode is smaller than the braking force generated on the rear wheel in the first mode.

Abstract: The present invention obtains a controller and a control method capable of hastening identification of an object or an event to be focused by a rider of a straddle-type vehicle, the rider having perceived haptic motion. A controller (51) for a rider-assistance system (50) mounted to a straddle-type vehicle (100) includes: a determination section that determines necessity of a warning given to the rider; and a haptic motion performing section that performs haptic motion at least once to reduce or increase acceleration/deceleration of the straddle-type vehicle (100) only for a moment. The haptic motion performing section changes a priority of each wheel (3, 4) at the time of changing a braking force to reduce or increase the acceleration/deceleration only for the moment in the haptic motion according to a focusing direction that is a direction in which the rider should focus by the warning.

Abstract: To obtain a rider-assistance system capable of providing a rider of a straddle-type vehicle with a sense of comfort and safety during a turn, and a control method for such a rider-assistance system. The present invention provides the rider-assistance system that assists with driving by the rider of the straddle-type vehicle and includes a controller.

Abstract: The present invention obtains a controller and a control method capable of appropriately executing adaptive cruise control of a straddle-type vehicle. In the controller and the control method according to the present invention, when braking forces are generated on at least one of wheels of the straddle-type vehicle during the adaptive cruise control, in which the straddle-type vehicle is made to travel according to a distance from the straddle-type vehicle to a preceding vehicle, motion of the straddle-type vehicle, and a rider's instruction, at a braking start time point at which the braking force starts being generated on at least one of the wheels, braking force distribution between the front and the rear wheel is brought into an initial state where the braking force is generated on the front wheel.

Abstract: The present invention obtains a controller and a control method capable of appropriately executing automatic emergency deceleration operation of a straddle-type vehicle. In the controller according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at a braking start time point at which a braking force starts being generated on at least one of wheels, braking force distribution between the front and rear wheels is brought into an initial state where the braking force is generated on the front wheel. In the control method according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at the braking start time point at which the braking force starts being generated on at least one of the wheels, the braking force distribution between the front and rear wheels is brought into the initial state where the braking force is generated on the front wheel.

Abstract: A controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like is disclosed. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a lean angle of the motorcycle.

Abstract: The present invention obtains a controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a change rate of a state amount relevant to a posture of the motorcycle during turning travel.

Abstract: A controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like is disclosed. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a lean angle of the motorcycle.

Abstract: A wheelie controller and a control method thereof or preventing a reduction of acceleration that is more than necessary and reducing a shock during a contact of a front wheel with the ground when a wheelie state is terminated. The wheelie controller for controlling a wheelie of a vehicle body computes a target trajectory, which is a target of a parameter and is used to control the wheelie state of the vehicle body, in accordance with the parameter that is related to pitch of the vehicle body and controls an increase/reduction of the pitch of the vehicle body so as to bring the parameter close to the target trajectory.

Abstract: The present invention obtains a controller and a control method capable of appropriately assisting with an operation by a rider. The present invention also obtains a driver-assistance system including such a controller. A controller (60) for a driver-assistance system (10) used for a motorcycle includes: a relevant information acquisition section (65) that acquires information relevant to automatic deceleration generated during adaptive cruise operation; and a notification control section (66) that makes a notification device (70) execute notification operation to the rider in the case where the information relevant to the automatic deceleration, which is acquired by the relevant information acquisition section (65), satisfies a determination criteria.

Abstract: The present invention obtains a controller and a control method capable of executing automatic cruise operation that suppresses failure of a friction brake mechanism for a rear wheel. A controller for a motorcycle according to the present invention includes a mode change section that changes a mode to a first mode in a state where a temperature of a rear-wheel friction brake mechanism is lower than a first prescribed temperature and to a second mode in a state where the temperature of the rear-wheel friction brake mechanism is higher than the first prescribed temperature during automatic deceleration in the automatic cruise operation.

Abstract: A controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like is disclosed. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a lean angle of the motorcycle.