Controller, control method, and brake system

A control method of controlling behavior of a motorcycle (100), the motorcycle (100) including a damping device (80) that damps kinetic energy, the control method comprising:

• an acquisition step (S111) of acquiring trigger information that is generated in accordance with peripheral environment of the motorcycle (100);
• and
• an execution step (S115) of initiating a control mode in response to the trigger information, the control mode making the motorcycle (100) execute an automatic deceleration operation, wherein
• in the control mode, the automatic deceleration operation is executed in a state where a damping rate of the damping device (80) is increased to be higher than that immediately before initiation of the control mode, and
• upon termination of the automatic deceleration operation, the damping rate of the damping device (80) is lowered at a lower change rate than a change rate at a time when the damping rate of the damping device (80) is increased to be higher than that immediately before the initiation of the control mode, wherein
• in the case where it is determined that a driver has an avoidance intention during the automatic deceleration operation, the automatic deceleration operation is prohibited and terminated.

A brake system (10) comprising:

• a peripheral environment sensor (46) that detects peripheral environment of a motorcycle (100), the motorcycle (100) including a damping device (80) that damps kinetic energy;
• and
• a controller (60) that controls behavior of the motorcycle (100) on the basis of the peripheral environment, wherein
• the controller (60) includes:
• an acquisition section (61) that acquires trigger information generated in accordance with the peripheral environment;
• and
• an execution section (62) that initiates a control mode in response to the trigger information, the control mode making the motorcycle (100) execute an automatic deceleration operation, and
• in the control mode, the automatic deceleration operation is executed in a state where a damping rate of the damping device (80) is increased to be higher than that immediately before initiation of the control mode, and
• upon termination of the automatic deceleration operation, the damping rate of the damping device (80) is lowered at a lower change rate than a change rate at a time when the damping rate of the damping device (80) is increased to be higher than that immediately before the initiation of the control mode, wherein
• in the case where it is determined that a driver has an avoidance intention during the automatic deceleration operation, the automatic deceleration operation is prohibited and terminated.