›› 2012, Vol. 42 ›› Issue (05): 1127-1134.

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Control and matching of steering parameters for high-speed tracked vehicle with hydrostatic drive

ZHANG Hai-ling1, LI He-yan1, SONG Wei-qun2, MA Biao1, GAO Zhi-feng1   

  1. 1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,China;
    2. Military Representative Office of PLA in 318 Factory, Beijing 100053, China
  • Received:2011-07-07 Online:2012-09-01 Published:2012-09-01

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Abstract: In order to deal with the problem that the tracked vehicle with hydraulic drive steers the pressure of the outer hydraulic system may become too high and the problem of the steering trajectory control, a new steering control strategy was proposed. In the proposed strategy the outer side hydromotor displacement uses dual-parameter control by hydraulic pressure and engine speed, while the inner side uses speed closed-loop control to follow the outer side. The targeted relative steering radius, the turning angle of steering wheel, vehicle speed, hydraulic displacement, engine speed, and hydraulic system pressure were matched. A simulation model was built for the whole vehicle steering, and a test system was established for the real vehicle. The results of simulation and field test showed, the proposed control strategy can control effectively the hydraulic system pressure, the parameter match can meet the requirements of steering control, to realize the accurate and rapid steering of the vehicle according to the targeted relative steering radius.

Key words: vehicle engineering, tracked vehicle, hydrostatic drive, steering, control strategy, parameter matching

CLC Number: 

  • U463.2
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