Brake control device and brake system

A brake control device comprising:

• an electronic controller configured to control a brake unit configured to brake a rotation body of a human-powered vehicle,
• the electronic controller being further configured to:
• determine whether a first predetermined condition and a second predetermined condition are each satisfied,
• execute an ABS control when the first predetermined condition is satisfied, the ABS control configured to control the brake unit to adjust a braking force acting on the rotation body,
• limit the ABS control when both the first predetermined condition for executing the ABS control and the second predetermined condition for limiting the ABS control are satisfied, and
• determine whether the first predetermined condition is satisfied based on different information than that used to determine whether the second predetermined condition is satisfied,
• the second predetermined condition being set based on limitation information that differs from information related to a traveling speed of the human-powered vehicle, and
• the electronic controller being configured to determine whether the second predetermined condition is satisfied based on at least one selected from the group consisting of:
• a relationship between a cadence input to a crank of the human-powered vehicle and a predetermined cadence, a relationship between a power input to the crank and a predetermined power, a relationship between a torque input to the crank and a predetermined torque, a relationship between a slip angle of the human-powered vehicle and a predetermined slip angle, a relationship between a steering angle of the human-powered vehicle and a predetermined steering angle, a relationship between a lateral load of the human-powered vehicle and a predetermined lateral load, a relationship between a yaw angle of the human-powered vehicle and a predetermined yaw angle, a relationship between a roll angle of the human-powered vehicle and a predetermined roll angle, a relationship between a pitch angle of the human-powered vehicle and a predetermined pitch angle, a relationship between a vertical load of the human-powered vehicle and a predetermined vertical load, a friction coefficient of a road surface, weather of a traveling environment of the human-powered vehicle, an amplitude of the road surface, a state of charge of a battery of the human-powered vehicle, a detected abnormality of a component of the human-powered vehicle, an air pressure of a tire of the human-powered vehicle, whether the tire is flat, a thickness of a friction member of the brake unit, a detected condition of a rider of the human-powered vehicle, a total weight of the human-powered vehicle, and a vehicle body specification of a component of the human-powered vehicle.