The invention relates to the technical field of
vehicle safety, in particular to a warning method and
system for avoiding vehicle rear-end collision. The method provided by the invention comprises thesteps of collecting vehicle state information according to sensor signals and converting state information into digital signals to be input into a
central processing unit, judging whether the digitalsignal value exceeds a preset threshold value; if not, returning to step 2, and if yes, performing the next step; selecting a corresponding warning
signal from a voice file, outputting to a voice circuit and giving out the warning
signal. The
system provided by the invention is composed of an acceleration
transducer, a speed sensor, other sensors, a voice file, a voice module, a power
amplifier circuit, a
loudspeaker, a
central processing unit and the like. When faults, such as tire burst, collision, roll over, secondary rear-end collision and the like, occur to a vehicle, the invention can notice a rear vehicle of the state of the vehicle with voice, can effectively prevent rear-end collision from occuring in
severe weather and ensures the life safety of a driver.