| Abstract [eng] |
Transport stability is one of the most important factors ensuring road safety. It is equally important for all means of transport, including, but not limited to - cars, trucks, motorcycles. This thesis is focused on trucks, as they are quite bulky and some of the hardest to keep stable on the road. In literature source review are analysed truck stability and driving dynamics. Firstly, the operation principle of electronic stability systems, such as ABS, EBD, TCS or ESP is introduced and described. Using mathematical formula, were calculated support reaction forces, engaging with the road when turning, the critical truck's without cargo rollover speed with different road turn radiuses. Secondly were calculated the critical truck's with a trailer skid and rollover speeds with varying coefficient of friction and center of gravity height with different road turn radiuses, wind influence being considered. Also was calculated the critical wind skid speed with varying truck weight, center of gravity height and wheel base. Finally was calculated critical lateral wind skid speed with varying truck weight and the coefficient of friction with the road and truck side area. All data was presented visually and conclusions were written. |
