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为了准确获取轮胎径向尺寸变化对加速行驶车外噪声试验的影响,文章采用同一辆乘用车换装2种型号轮胎,依据GB1495—2002《汽车加速行驶车外噪声限值及测量方法》进行对比试验。结果显示,轮胎径向尺寸变化会对加速行驶车外噪声试验结果产生影响,并指出采用径向尺寸较小的轮胎,加速行驶车外噪声试验过程中汽车发动机转速越高,噪声试验最终结果也越大。文章建议将轮胎尺寸的差异列为车型判定的条件。
In order to accurately obtain the radial tire radial dimension changes to accelerate the impact of the vehicle outside the noise test, the article using the same passenger car dress up two types of tires, according to GB1495-2002 “car acceleration traveling outside the noise limits and measurement methods” for Comparative Test. The results show that the radial tire size changes will affect the test results of accelerated driving outside noise. It is also pointed out that with the tire with smaller radial size, the higher the engine speed of the car during the acceleration noise test, the final result of the noise test The bigger The article suggests that the differences in tire size should be listed as a condition of the model.