牵引车辅助制动研究

Research on auxiliary braking of traction vehicle

大马力发动机小速比后桥已成为牵引车动力总成发展的趋势,后桥速比变小要求辅助制动力矩有较大提升,液力缓速器+发动机缸内制动可以同时满足车辆在低、中、高速时的辅助制动需求,是牵引车辅助制动的最佳选择。

The matching of large power engine with small speed ratio rear axle has become the trend of powertrain development of traction vehicle, and the auxiliary braking is required to provide greater braking torque. This paper studies the development trend of several auxiliary braking. It is pointed out that hydraulic retarder and engine in-cylinder braking is the best choice for auxiliary braking of traction vehicle.