All terrain adaptive locomotion chassis equipped with ultra-low-pressure tyres (ATALCULPT) to reduce mechanical soil compaction

Abstract. Using ultra-low-pressure tyres is a better way to reduce the mechanical soil compaction, but they are seldom used until now just because their bearing capacity and tractive performance are too weak to work normally when being used on the regulary vehicle. So the premise of using ultra-low-pressure tyres is a kind of new chassis with multi-wheels which can realize all-wheel drive and terrain adaptive locomotion. Stand on the point to consider soil-machinery together, the innovation of the agricultural mechanism is also a fundamental and effective way to mitigate the mechanical soil compaction in small holder countries like China. The theory of wheeled terrain adaptive locomotion with multi-degree-of-freedom has been presented because of the complicated farmland terrain. All terrain adaptive locomotion chassis (ATALC) has been designed to realize all-wheel drive and terrain adaptive locomotion anywhere and anytime. ATALC's terrain adaptive locomotion on various complicated terrain has been simulated and experimented. All terrain adaptive locomotion chassis equipped with ultra-low-pressure tyres (ATALCULPT) can reduce the mechanical soil compaction with strong drawbar full in comparison with the DFH-504 tractor which can be verified by the theoretical analysis and terramechanics calculation. So the application and popularization of ATALCULPT can not only avoid the destroy of the soil resources but also meet the modern agricultural machinary's performance requests.