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以某8×4重型自卸车为分析对象,建立了四轴汽车的制动力学模型,对该车在满载、超载情况下进行各轴载荷的计算,前、中、后桥制动力矩和制动力分配分析,在此基础上,提出了多轴汽车的行车制动性能分析方法,并与该车制动性能O型试验结果数据进行对比。实例分析结果表明,该方法简单、实用,能对四轴汽车行车制动性能进行有效分析。
Taking an 8 × 4 heavy-duty dump truck as the analysis object, a four-axle vehicle braking mechanics model is established. The calculation of each axle load, the braking torque of the front, middle and rear axle under the condition of full load and overloading, On the basis of this analysis, a method to analyze the service braking performance of multi-axle vehicles is proposed and compared with the O-test results of the braking performance of the vehicle. The example analysis shows that the method is simple and practical and can effectively analyze the service braking performance of four-axle vehicles.