In this paper, we aimed to achieve the indoor tracking control of a two-wheeled inverted pendulum (TWIP) vehicle. The attitude data are acquired from a low cost micro inertial measurement unit (IMU), and the ultra-wideband (UWB) technology is utilized to obtain an accurate estimation of the TWIP's position. We propose a dual-loop control method to realize the simultaneous balance and trajectory...

A Fe-20.1Mn-1.23Si-1.72Al-0.5C TWIP steel with ultra-fine grain structure was successfully processed through Equal Channel Angular Pressing (ECAP) at warm temperature up to four passes following the BC route. The microstructure evolution was characterized by Electron Back Scattered Diffraction (EBSD) to obtain the grain maps, which revealed an obvious reduction of grain size, as well as a decre...

Two-wheeled inverted pendulum (TWIP) vehicles are prone to lose their mobility and postural stability owing inherently unstable underactuated dynamic characteristics, specifically when they encounter abruptly changed slopes or ground friction. Overcoming such environmental disturbances is essential realize an agile TWIP-based mobile platform. In this paper, we suggest a disturbance compensation...

The microstructures, mechanical properties, and anticorrosion properties of Fe–25Mn–Cr(12, 18 wt.%)–CN TWIP steels compared with nominal Fe–22Mn–0.6C steel (TWIP-ref) in the solid-solution state were investigated present study by using X-ray diffraction (XRD), electron backscattered (EBSD), transmission microscopy (TEM), tensile tests, potentiodynamic polarization measurement, etc. results show...

When a two-wheeled inverted pendulum (TWIP) robot vehicle travels on slippery roads, the occurrence of wheel slip extremely threatens its postural stability owing to loss traction. If severe happens between driving wheels and contact surfaces, no control techniques can guarantee performance TWIP robots in absence an extra strategy. In this paper, TWIP-compatible countermeasure against phenomena...

A new ultra-high strength steel with a fully austenitic microstructure and twinning-induced plasticity (TWIP) effect has been developed. TWIP gives this good combination of high over 1000 MPa ductility 35%. This chromium content, which increases its corrosion resistance. By combining cold rolling annealing, the achieved very fine an average grain diameter 2.85 µm. could be used for structural a...

Twinning-induced plasticity (TWIP) steel offers high strength and ductility. However, in this study, deformation-induced detwinning was studied to prove that not all twins significantly benefit the mechanical properties. The quasi situ observation results indicated submicron-sized were unstable during Charpy impact loading. In contrast TWIP concept, analysis of geometrically necessary dislocati...

microstructural evolutions of twinning induced plasticity (twip) steel during tensile straining wereinvestigated by in situ sem observations. the results indicated that slip lines and mechanical twins aswell as surface relief were increased with increasing strain, resulting in a stepped surface. additionally,these deformation mechanisms could change the shape of each grain via shear and rotatio...