Research on Key Control Strategy for Travel-ling System of 26 t Battery Electric Pneu-matic Tyre Roller
With the gradual application of electric drive technology in construction machinery,battery electric pneumatic tyre rollers have also entered the ranks of research and development.Taking the 26-t battery electric pneumatic tyre roller with independent drive of multiple motors of 4 in the front and 5 in the rear as the research object,with the objectives of improving the efficiency of the drive system and ensuring the quality of operation,the key control technolo-gies of its travelling system are studied.Firstly,the composition and working principle of the travelling system of the 26-t battery electric pneumatic tyre roller are analyzed.Secondly,the automatic switching control strategy of the drive modes of the travelling system based on the goal of energy saving is proposed,three travelling drive modes are designed according to different load conditions of the pneumatic tyre roller,and in conjunction with the perma-nent magnet synchronous motor efficiency Map,the switching algorithm of drive modes is developed.Finally,on the basis of different drive modes,with pure rolling of the drive tyres as the control objective,an electronic differen-tial steering control strategy based on Acker-mann model is proposed.
Battery electric pneumatic tyre rollerMotor efficiency MapDrive mode switchingElectronic differential
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