湖南工业大学学报
湖南工業大學學報
호남공업대학학보
JOURNAL OF HUNAN UNIVERSITY OF TECHNOLOGY
2015年
2期
84-88
,共5页
电动轮自卸车%制动力分配%横摆力矩%模糊自整定
電動輪自卸車%製動力分配%橫襬力矩%模糊自整定
전동륜자사차%제동력분배%횡파력구%모호자정정
motorized wheel dump truck%EBD (electronic brake force distribution)%yaw moment%fuzzy self-tun-ing
电动轮自卸车在左右附着系数不同的路面进行紧急制动时,会产生干扰横摆力矩,导致自卸车侧滑跑偏。为此,提出了一种基于横摆力矩控制的电动轮自卸车制动力分配策略,该策略采用参数模糊自整定PID控制器,根据横摆角速度偏差值分别调整制动时自卸车左轮和右轮的滑移率,自动分配左轮和右轮的制动力来直接实现横摆力矩控制。仿真分析结果表明:系统能够很好地实现电动轮自卸车制动力的合理分配;采用制动力分配策略后,最大侧滑距离从8.9 m减小为0.72 m。
電動輪自卸車在左右附著繫數不同的路麵進行緊急製動時,會產生榦擾橫襬力矩,導緻自卸車側滑跑偏。為此,提齣瞭一種基于橫襬力矩控製的電動輪自卸車製動力分配策略,該策略採用參數模糊自整定PID控製器,根據橫襬角速度偏差值分彆調整製動時自卸車左輪和右輪的滑移率,自動分配左輪和右輪的製動力來直接實現橫襬力矩控製。倣真分析結果錶明:繫統能夠很好地實現電動輪自卸車製動力的閤理分配;採用製動力分配策略後,最大側滑距離從8.9 m減小為0.72 m。
전동륜자사차재좌우부착계수불동적로면진행긴급제동시,회산생간우횡파력구,도치자사차측활포편。위차,제출료일충기우횡파력구공제적전동륜자사차제동력분배책략,해책략채용삼수모호자정정PID공제기,근거횡파각속도편차치분별조정제동시자사차좌륜화우륜적활이솔,자동분배좌륜화우륜적제동력래직접실현횡파력구공제。방진분석결과표명:계통능구흔호지실현전동륜자사차제동력적합리분배;채용제동력분배책략후,최대측활거리종8.9 m감소위0.72 m。
During the emergency braking on the road with different left and right adhesion coefficients, the motorized wheel dump truck will emerge interferential yaw moment, leading to the dump truck side slip and deflection. Therefore, puts forward a kind of EBD(electronic brake force distribution) strategy of motorized wheel dump truck based on yaw moment control. The strategy adopts the parameter fuzzy self-tuning PID controller which can adjust the slip ratios of the left and right wheels of the dump truck respectively during the emergency braking according to the yaw velocity deviation value and realize the direct yaw moment control by the automatic brake force distribution of the left and right wheels. Simulation analysis shows that the system realizes the reasonable brake force distribution of the motorized wheel dump truck, and the maximum side slip distance decreases from 8.9 m to 0.72m.