I. Overview: This test sets Main implement steering column steering gap, starting torque, load torque test, the test car's steering column steering clearance special test equipment, the gap between the steering column assembly quantitative test Analysis. During the test, the computer draw the appropriate angle - torque characteristic curve, starting torque and load torque measurements, and test results for product adequacy determining Second, to meet the standards: 1, "QC / T 649-2010 Automobile steering control mechanism Performance requirements and test methods "Third, the test parameters: 1, the maximum torque: 10Nm, accuracy: ± 0.5% FS 2, maximum angle: 0 to 360, accuracy: ± 0.5% FS 3, to test the length: 0.5-1.5m 4, control: torque, angle four subjects: each vehicle steering column