System and method for controlling braking of electric vehicle

A method for controlling a brake of an electric vehicle provided with a smart cruise control system, the method comprising:

• detecting, by a driving information detector, a brake demand of a driver when braking control due to a smart cruise controller is performed;
• determining, by a vehicle controller, a demand braking amount of the driver according to a position value of a brake pedal when the brake demand of the driver is detected;
• stopping, by the vehicle controller, the braking control due to the smart cruise controller when the demand braking amount is the same as a braking amount caused by the smart cruise controller;
• and
• performing, by the vehicle controller, braking control by using the demand braking amount.

A method for controlling a brake of an electric vehicle provided with a smart cruise control system, the method comprising:

• detecting, by a driving information detector, a brake demand of a driver when braking control due to a smart cruise controller is performed;
• stopping, by a vehicle controller, the braking control due to the smart cruise controller and maintaining a braking amount caused by the smart cruise controller when the brake demand of the driver is detected;
• determining, by the vehicle controller, a demand braking amount according to the brake demand of the driver;
• releasing, by the vehicle controller, the braking amount caused by the smart cruise controller when the demand braking amount is greater than the braking amount caused by the smart cruise controller;
• and
• performing, by the vehicle controller, braking control by using the demand braking amount.

A method for controlling a brake of an electric vehicle provided with a smart cruise control system, the method comprising:

• detecting, by a driving information detector, a brake demand of a driver when braking control due to a smart cruise controller is performed;
• stopping, by a vehicle controller, the braking control due to the smart cruise controller and slowly decreasing a braking amount caused by the smart cruise controller when the brake demand of the driver is detected;
• determining, by the vehicle controller, a demand braking amount according to the brake demand of the driver;
• releasing, by the vehicle controller, the braking amount caused by the smart cruise controller when the demand braking amount is greater than the braking amount caused by the smart cruise controller;
• and
• performing, by the vehicle controller, braking control by using the demand braking amount.

A system for controlling a brake of an electric vehicle, comprising:

• a driving information detector configured to detect driving information of the electric vehicle;
• a smart cruise controller configured to perform braking control through regenerative braking and hydraulic pressure braking depending on a vehicular distance to a preceding vehicle based on a signal from the driving information detector;
• a brake controller configured to control hydraulic pressure supplied to a brake cylinder of a driving wheel according to a braking amount of hydraulic pressure based on signals from the driving information detector and the smart cruise controller;
• and
• a vehicle controller configured to stop braking control due to the smart cruise controller when a brake demand of a driver is detected during the braking control due to the smart cruise controller performing, adjust a braking amount caused by the smart cruise controller, and perform braking control of the electric vehicle by determining a demand braking amount according to the brake demand of the driver.

A system for controlling a brake of an electric vehicle, comprising:

• a driving information detector configured to detect driving information of the electric vehicle;
• a smart cruise controller configured to perform braking control through regenerative braking and hydraulic pressure braking depending on a vehicular distance to the preceding vehicle based on a signal from the driving information detector;
• a brake controller configured to control hydraulic pressure supplied to a brake cylinder of a driving wheel according to a braking amount of hydraulic pressure based on signals from the driving information detector and the smart cruise controller;
• and
• a vehicle controller configured to determine a demand braking amount when a brake demand of a driver is detected during braking control due to the smart cruise controller performing, stop the braking control due to the smart cruise controller when the demand braking amount is the same as a braking amount caused by the smart cruise controller, and perform braking control of the electric vehicle by using the demand braking amount.