利用悬架K&C试验台测试某两型车的侧倾梯度。台架测试结果与实车稳态回转试验测试结果基本吻合。基于悬架侧倾试验和侧向力试验,并结合轮胎性能试验和转向系统试验,计算整车不足转向来源及其大小。结果表明:侧倾转向、轮胎侧偏、侧向力柔顺转向是影响整车不足转向的主要因素。 Using a K & C test stand to test the roll gradient of a two-car model. Bench test results and real car steady rotation test test results are basically consistent. Based on the suspension roll test and lateral force test, combined with tire performance test and steering system test, the source and size of vehicle under-steering are calculated. The results show that the main factors that affect the steering of vehicle are: roll steering, tire side deflection and lateral force compliance steering.