METHOD FOR CONTROLLING BRAKING OF HEV

摘要

A braking controlling method of hybrid vehicle is provided prevent accident by braking safely the vehicles using motor of the hybrid vehicle, transmission and engine in trouble of the brake. A braking controlling method of hybrid vehicle comprises steps of: judging normality or malfunction of a brake; and receiving trouble signal of the brake of ESP and controlling motor, engine and transmission into a condition required for the brake. The step of decision trouble of brake of ESP comprises steps of: inputting each sensing value from a brake pedal stroke sensor, a brake wheel oil pressure sensor and a longitudinal direction G sensor to the ESP; determining whether a pedal stroke comparison brake wheel fluid pressure is proper or not based on a sensing value of the brake pedal stroke sensor and a sensing value of the brake wheel oil pressure sensor and determining as the trouble of brake if it is not proper and transmitting the signal in the HCU; estimating gradient based on the sensing value of the longitudinal direction G sensor, determining whether vehicles belongs to optimal range of depreciation speed or not based on a sensing value of the brake wheel oil pressure sensor and determining as the trouble of brake if the condition comparison depreciation speed does not belong to slope to the optimal range and transmitting the signal in the HCU.