Method and device for controlling regenerative braking of hybrid commercial vehicle

A method for controlling regenerative braking of a hybrid commercial vehicle that includes a main brake and an auxiliary brake, comprising:

• determining, by a controller, whether a braking request condition of the vehicle is satisfied based on a state data;
• generating, by the controller, a request braking amount based on the state data when the braking request condition is satisfied;
• determining, by the controller, whether an operation switch of the auxiliary brake is on;
• generating, by the controller, an auxiliary braking amount of the auxiliary brake in response to determining that the operation switch is on;
• generating, by the controller, a final braking amount based on the request braking amount and the auxiliary braking amount;
• generating, by the controller, a regenerative braking amount based on the final braking amount;
• and
• performing, by the controller, braking of the vehicle based on the final braking amount.