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《Journal of Zhejiang University(Engineering Science)》 2014-06
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Dynamic distribution method of multi-axle vehicle's driving axle load on test bench

YANG Yong;ZHOU Xiao-jun;YANG Chen-long;MO Jin-qiu;The State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University;Mechanical Engineering School,Shanghai Jiao Tong University;  
When a multi-axle vehicle was tested in a test bench,due to the equal distribution of load,the driving-axles' load of vehicle applied by the dynamometer-motor kept the same and no dynamical changes were observed according to the different driving statuses.So a method of dynamical load distribution was put forward,by which the distribution of the driving-axles' load is close to that in the real driving statuses.A dynamical model was built for the multi-axle vehicle,by which different driving status were analyzed.The computing methods of the defined coefficients of the load's distribution under different running statuses,such as stationary,starting,acceleration,neutral taxiing and breaking were given.By using the new distribution method,the simulated analyses of the whole test system showed that as different as the driving status was,the different coefficients of the load's distribution were.The drivingaxles' load applied by the dynamometer-motor varied well with the variations of the distribution coefficients,and thus the dynamic load distribution of the driving-axles was achieved.
【CateGory Index】: U467
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