|
Abstract: The
influence of hydraulic and mechanical coupling on control property is
analyzed in the secondary regulation load simulation test equipment for
the drive axle of heavy vehicle. Simulation shows that disturbance error
caused by mechanical coupling between the speed control subsystem to
simulate the drive and the torque control subsystem to simulate the
loads on the secondary axle and wheel edges are comparatively large and
may obviously decrease the control accuracy of the whole system. Certain
decoupling control elements can be installed to the system so as to make
each subsystem almost independent of each other, realize decoupling of
secondary regulation load simulation system, eliminate deteriorating
effect of coupling and finally quite improve control property. The
decoupling strategy proposed provides an efficient way to realize
decoupling control of the secondary regulation load simulation test
equipment and to enhance its performance.
Key words: Drive
axle Secondary regulation Load simulation Hydraulic coupling
Mechanical coupling Decoupling control
CLC No: TP273.2
Received 20030522, received in revised form
20031110
|