本程序提供了确定额定车辆总重不超过4540 kg的所有乘用车和轻型卡车的适当惯性值的方法。对于相同的车辆应用和车轴（前部或后部），不同的测试部分或制动应用可能使用不同的惯性值来反映特定测试中指示的工作循环和负载条件。

This procedure provides methods to determine the appropriate inertia values for all passenger cars and light trucks up to 4540 kg of GVWR. For the same vehicle application and axle (front or rear), different tests sections or brake applications may use different inertia values to reflect the duty-cycle and loading conditions indicated on the specific test.