The invention discloses a rail transit wheel diameter correction system, which is characterized in that a main management unit MU calculates a train reference shaft speed according to a reference shaft wheel diameter, and judges whether the train reference shaft speed and train acceleration and deceleration are in a preset range or not and whether each shaft in an internal network does not slide or not, if yes, a wheel diameter correction permission command is sent to all LUs; the LU calculates the shaft speed of each wheel pair according to a preset wheel diameter value; meanwhile, each LU collects the train reference shaft speed of the MU unit and the shaft speed of each wheel set in the LU unit for multiple times in a preset period, the average train reference shaft speed and the average shaft speed of each wheel set are calculated respectively, and according to the difference value result of the average train reference shaft speed and the average shaft speed of each wheel set, the wheel diameter value of each local shaft is increased or decreased till the speed difference value is smaller than a preset threshold value; accurate judgment basis is provided for the anti-skid system, and system performance and reliability are improved.
本发明公开了一种轨道交通车轮轮径修正系统,主管理单元MU根据参考轴轮径计算列车参考轴速度,并判断列车参考轴速度及列车加减速度是否均在预设范围内,且内网内各轴均无滑行,若是,则向所有LU发送“允许轮径修正命令”。LU根据预设的轮径值计算各轮对轴速度;同时各LU在预设周期内多次采集MU单元的列车参考轴轴速度及本LU单元内各轮对轴速度,分别计算平均列车参考轴速度和各轮对平均轴速度,并根据两者差值结果,对本地各轴轮径值进行增减操作,直至速度差值小于预设的阈值,本发明为防滑系统提供准确的判别依据,提高了系统性能和可靠性。
Rail transit wheel diameter correction system
一种轨道交通车轮轮径修正系统
2022-07-05
Patent
Electronic Resource
Chinese
European Patent Office | 2020
|Horizontal wheel assembly, bogie, rail vehicle and rail transit system
European Patent Office | 2020
|