武汉理工大学学报（信息与管理工程版）
武漢理工大學學報（信息與管理工程版）
무한리공대학학보（신식여관리공정판）
JOURNAL OF WUHAN AUTOMOTIVE POLYTECHNIC UNIVERSITY
2015年
3期
315-317,326
,共4页
四轮转向%瞬心偏差法%转向梯形参数
四輪轉嚮%瞬心偏差法%轉嚮梯形參數
사륜전향%순심편차법%전향제형삼수
four wheel steering%instantaneous center deviation%parameter of steering trapezoid
某型号消防车前后转向梯形均为整体式转向梯形，针对四轮转向的消防车在四轮转向状态下车轮会因转动瞬心不在车轮轴线而产生磨损，采用瞬心偏差法评价低速四轮转向状态下车辆的车轮磨损情况，确定车辆转弯半径及误差范围和车辆的最小转弯半径。基于Ackerman定律优化前转向梯形参数，用瞬心偏差法优化后转向梯形参数，优化后瞬心偏差最大值减小了46％。
某型號消防車前後轉嚮梯形均為整體式轉嚮梯形，針對四輪轉嚮的消防車在四輪轉嚮狀態下車輪會因轉動瞬心不在車輪軸線而產生磨損，採用瞬心偏差法評價低速四輪轉嚮狀態下車輛的車輪磨損情況，確定車輛轉彎半徑及誤差範圍和車輛的最小轉彎半徑。基于Ackerman定律優化前轉嚮梯形參數，用瞬心偏差法優化後轉嚮梯形參數，優化後瞬心偏差最大值減小瞭46％。
모형호소방차전후전향제형균위정체식전향제형，침대사륜전향적소방차재사륜전향상태하차륜회인전동순심불재차륜축선이산생마손，채용순심편차법평개저속사륜전향상태하차량적차륜마손정황，학정차량전만반경급오차범위화차량적최소전만반경。기우Ackerman정률우화전전향제형삼수，용순심편차법우화후전향제형삼수，우화후순심편차최대치감소료46％。
The front and the rear steering trapezoids of a fire truck are the Ackerman steering .Due to the instantaneous cen-ter not in the four wheel axes , the wheels produce wear in four -wheel steering state .The instantaneous center deviation method can evaluate the wear rate of the wheels in four -wheel steering state and evaluate the value and error range of turning radius and the minimum turning radius of vehicles .Based on the law of Ackerman , the front steering trapezoid was optimized .And the rear steering trapezoid was optimized based on instantaneous center deviation method .
