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Performance experiment of integrated system with car electromagnetic and frictional brakes |
1.School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Department of Automobile Engineering, Guangxi Communication Vocational & Technical Institute, Nanning, Guangxi 530023, China) |
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Abstract At the test bench of integrated system with electromagnetic and frictional brakes, the blend brake torque comparison was conducted with various air gap, maximum supplying current, electromagnetic brake coil turns and brake disc material. The relationship among blend brake torque, electromagnetic brake torque and frictional brake torque, and the influence of different parameters on the blend brake torque were investigated. The results show that air gap, supplying current of electromagnetic brake coil, electromagnetic brake coil turns and brake disc material all have influences on the total torque of integrated system. With consideration of two factors of performance and installation, the optimum air gap and maximum supplying current of electromagnetic brake coil are 2 mm and 15 A with electromagnetic brake coil turns of 820×4 for copper brake disc. For those vehicles with gross mass more than 1 200 kg, the maximum supplying current of electromagnetic brake coil can be increased to 25 A.
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