2014中国汽车工程学会年会用户论文集：Braking deviation is a common dangerous working condition during vehicle is braking，which must be avoided in the process of braking system design. The main reason is the unequal braking force between the left and right wheels. The mechanism is analyzed based on many theoretical researches and practical experiences，by using specific date to calculate the difference of braking force that results in the braking deviation. The road braking test also proves the test conclusion is the same as the calculated result. It shows that the mechanism research and quantitative analysis can give good reference to the follow-up design.汽车制动跑偏机理研究和定量分析