Control apparatus of brake system and method of controlling the same

A method of controlling a brake system, comprising:

• a first input operation of receiving a connection signal on a connection between a vehicle and a trailer sensed by a sensing apparatus;
• a determination operation of determining whether the vehicle and the trailer are mutually connected based on the connection signal;
• a second input operation of receiving current yaw rate error information of the vehicle according to current oscillation information of the trailer sensed by the sensing apparatus when the vehicle and the trailer are mutually connected;
• a selection operation of selecting target yaw rate information preset while being divided for each type and weight of the trailer depending on the connection of the trailer to reduce a yaw rate error rate with respect to the current yaw rate error information of the vehicle according to the current oscillation information;
• and
• a driving operation of transmitting a brake command to the brake system to brake the vehicle according to the selected corresponding target yaw rate information.