Controller and control method

A control method for maneuvering a straddle-type vehicle (100), the straddle-type vehicle (100) including:

• a first wheel cylinder (24a) which is a wheel cylinder of a front wheel (3);
• a first braking operation unit (11) which is a braking operation unit configured to change a first wheel cylinder pressure corresponding to a pressure of a braking liquid of the first wheel cylinder (24a);
• a first master cylinder (21a) provided to the first braking operation unit (11);
• a second wheel cylinder (24b) which is a wheel cylinder of a rear wheel (4);
• a second braking operation unit (13) which is a braking operation unit configured to change a second wheel cylinder pressure corresponding to a pressure of a braking liquid of the second wheel cylinder (24b);
• and a second master cylinder (21b) provided to the second braking operation unit (13), the control method comprising:
• acquiring, using an acquisition unit (61) of a controller (60):
• a first master cylinder pressure corresponding to a pressure of a braking liquid of the first master cylinder (21a);
• and
• a second master cylinder pressure corresponding to a pressure of a braking liquid of the second master cylinder (21b);
• determining, using a determination unit (63) of the controller (60), whether a rider of the straddle-type vehicle (100) performs a braking operation, based on at least one of the first master cylinder pressure and the second master cylinder pressure acquired by the acquisition unit (61);
• and
• executing, using an execution unit (62) of the controller (60), a driving support mode, in which a braking force generated in the straddle-type vehicle (100) is amplified, when the determination unit (63) determines that the braking operation is performed, wherein
• the execution unit (62), in the driving support mode, amplifies:
• the braking force generated in the straddle-type vehicle (100), based on surrounding environment information about environment around the straddle-type vehicle (100);
• the braking force generated in the straddle-type vehicle (100) with the amplification of the second wheel cylinder pressure superior to the amplification of the first wheel cylinder pressure in response to determining that the rider performs the braking operation with the operation of the first braking operation unit (11) superior to the operation of the second braking operation unit (13);
• and
• the braking force generated in the straddle-type vehicle (100) with the amplification of the first wheel cylinder pressure superior to the amplification of the second wheel cylinder pressure in response to determining that the rider performs the braking operation with the operation of the second braking operation unit (13) superior to the operation of the first braking operation unit (11).