Dual-redundant control method of main processing unit of locomotive

Abstract

The invention relates to redundant control of a main processing unit (MPU) of a locomotive, specifically to a dual-redundant control method of the main processing unit of a locomotive, thereby solvinga problem that the existing dual-redundant processing method of the main processing unit of the locomotive is prone to the redundant switching misoperation. According to the control method, a main control MCU and a redundant MPU with the same hardware structures are mounted to a multi-function vehicle bus MVB; a local area network CAN bus is connected between the main control MPU and the redundant MPU; the main control MU periodically detects the running status of the machine and sends a running status and a heartbeat signal to the CAN bus; and the main control MPU sends a life signal to theMBV bus at the same time, and determines whether redundant switching is required by combining the running status and heartbeat signal on the CAN bus and the life signal on the MBV bus. According to the invention, on the basis of the control mode of dual-redundant control of the MMV bus and the CAN bus, the redundant control of the MPU is realized; the failure of the main control MPU is identifiedcorrectly; and the stability and accuracy of the MPU redundant switching are improved.

Description

technical field [0001] The invention relates to the redundant control of the locomotive main processing unit MPU, in particular to a dual redundant control method of the locomotive main processing unit. Background technique [0002] In recent years, with the rapid development of the global economy, the demand for railway transportation has also increased rapidly, and more stringent requirements have been put forward for the safety and efficiency of locomotive operation. As the core component of vehicle operation control and network communication bus management, the locomotive main processing unit MPU is the key to the normal operation of the locomotive. In order to ensure the safe, stable and punctual operation of the locomotive, the main processing unit MPU of the locomotive adopts a dual-redundancy design to avoid MPU failure and fault conditions in high-intensity working environments. Run timeliness. [0003] The existing dual-redundancy control method is to connect two...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the existing dual redundant control method of the main processing unit of the locomotive is prone to malfunction of redundant switching, and provides a dual redundant control method of the main processing unit of the locomotive

This method can accurately detect the failure of the main control MPU and quickly realize the redundant switching function of the MPU without affecting the normal operation of the vehicle, so as to solve the problem that the existing technology easily causes the malfunction of the redundant switching of the MPU

Images