Patent ID: 8473184

Claim:
A control method for deceleration of a vehicle including a continuous valve lift apparatus (CVVL) comprising: a) determining whether a fuel cutting condition is satisfied; b) determining whether a brake pedal input signal is detected when the fuel cutting condition is satisfied; c) controlling deceleration of the vehicle according to the brake pedal input signal by at least one of controlling a throttle opening angle and controlling a valve lift of the CVVL, wherein the determining of whether the fuel cutting condition is satisfied is performed after concluding that an acceleration pedal is released; stopping a fuel injection when the fuel cutting condition is satisfied; sensing the brake pedal input signal when the brake pedal input signal is detected; transforming the sensed brake pedal signal into a first target throttle opening angle; and controlling a throttle valve according to the first target throttle opening angle; lowering the valve lift of the CVVL so as to decelerate the vehicle when the fuel cutting condition is satisfied and the brake pedal input signal is not detected; determining whether the brake pedal input signal is detected when the fuel cutting condition is not satisfied sensing the brake pedal input signal when the brake pedal input signal is detected, transforming the sensed brake pedal signal into a second target throttle opening angle, and controlling the throttle valve according to the second target throttle opening angle; and determining a third target throttle opening angle when the fuel cutting condition is not satisfied and the brake pedal input signal is not detected; lowering the valve lift of the CVVL so as to decelerate the vehicle; and controlling the throttle valve according to the third target throttle opening angle.