Brake controller, brake control method and brake control system

A brake control method for controlling a brake device, the brake control method setting a pressing force by which a pad of the brake device is pressed against a rotor of the brake device during braking such that the pressing force is in a range other than a predetermined range, the brake control method comprising:

• detecting a pressing force information corresponding to the pressing force;
• detecting a stroke information corresponding to a stroke amount of the pad toward the rotor during braking;
• setting the predetermined range based on the pressing force information and the stroke information;
• and
• deriving, based on the pressing force information and the stoke information, a contact rigidity of the pad which comes into contact with the rotor, wherein the brake control method derives the predetermined range in accordance with the contact rigidity.

A brake control system comprising:

• a brake device including a pad and a rotor, the brake device applying a braking force to each of wheels by moving the pad toward the rotor provided for each of the wheels and pressing the pad against the rotor;
• and
• a brake controller configured to:
• detect a pressing force information corresponding to a pressing force by which the pad is pressed against the rotor during braking;
• detect a stroke information corresponding to a stroke amount of the pad toward the rotor during braking;
• distribute the braking force to each of the wheels such that the pressing force is in a range other than a predetermined range;
• set the predetermined range based on the pressing force information and the stroke information;
• and
• derive, based on the pressing force information and the stroke information, a contact rigidity of the pad which comes into contact with the rotor, wherein the brake controller derives the predetermined range in accordance with the contact rigidity.