The invention discloses a double 2-vote-2 vehicle-mounted subsystem dual-redundancy acceleration input design method, which comprises the following steps: S1, taking two accelerometers equipped at a TC1 end as input to obtain accelerations a1 and a2; s2, performing data comparison on the obtained a1 and a2; s3, if the comparison between a1 and a2 does not exceed the set tolerance of the system, a1 and a2 are regarded as reliable data, and acceleration input is provided for the TC1 end; s4, if the comparison between a1 and a2 exceeds the system set tolerance, the TC1 end main processor performs reset processing on the accelerometer; s5, if the reset accelerometer value does not exceed the tolerance through comparison, a1 and a2 are regarded as reliable data, and acceleration input is provided for the TC1 end; and S6, if the values of the group of accelerometers after resetting exceed the tolerance through comparison, determining that the accelerometer at the TC1 end has a fault, sending the fault to the ATS, and using a1'and a2 'of the TC2 end as redundant acceleration input by the TC1 end. Therefore, the availability of the acceleration and the availability of the VOBC subsystem are improved.
本发明公开了一种二乘二取二车载子系统双冗余加速度输入设计方法,包括:步骤S1,将TC1端配备的两个加速度计作为输入,得到加速度a1和a2;步骤S2,对得到的a1和a2进行数据比较;步骤S3,若a1和a2之间比较未超过系统设定容限,则a1和a2视为可靠数据,为TC1端提供加速度输入;步骤S4,若a1和a2之间比较超过系统设定容限,则TC1端主处理器将对加速度计进行复位处理;步骤S5,若复位后加速度计数值比较未超过容限,则a1和a2视为可靠数据,为TC1端提供加速度输入;步骤S6,若复位后该组加速度计数值比较超过容限,则TC1端加速度计故障,并将故障发送给ATS,TC1端将使用TC2端的a1'和a2'作为冗余加速度输入。以此提高加速度的可用性和提高VOBC子系统的可用性。
Double 2-vote-2 vehicle-mounted subsystem dual-redundancy acceleration input design method
一种二乘二取二车载子系统双冗余加速度输入设计方法
2024-02-23
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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