Air conditioning health monitoring system and monitoring method for electric bus

Abstract

An air conditioning health monitoring system for an electric bus comprises an air conditioning fault information hardware acquisition module used for acquiring parameters of an air conditioning systemof the electric bus, an on-site inputting module used for inputting regular maintenance information, bus information and maintenance record information, and a background cloud server monitoring and storage module, wherein the background cloud server monitoring and storage module is used for storing the various information acquired by the air conditioning fault information hardware acquisition module and the various information inputted and obtained by the on-site inputting module, and also used for performing analysis and calculation on the various information acquired by the air conditioningfault information hardware acquisition module and the various information inputted and obtained by the on-site inputting module so as to judge whether the corresponding air conditioning system is faulty, whether the same requires timely maintenance, and whether the same needs to be scrapped and replaced. The invention also provides an air conditioning health monitoring method for the electric bus.

Description

technical field [0001] The invention belongs to an air conditioner health monitoring system and a monitoring method, in particular to an air conditioner health monitoring system and a monitoring method for electric passenger cars. Background technique [0002] The air conditioning system of a pure electric bus is an important and complex part of a bus, and its daily maintenance and troubleshooting are the key means to ensure its effective and reliable operation. At present, in the process of inverter air conditioner fault diagnosis and making corresponding decisions, the time spent on finding faults accounts for more than 60% of the total troubleshooting time. When the air conditioner stops running, some fault characteristics (such as compressor fault) are not obvious, and various fault data can no longer be collected, which brings great difficulties to troubleshooting. In addition, according to on-site investigations and on-the-spot investigations, the traditional air cond...

AI Technical Summary

Problems solved by technology

When the air conditioner stops running, some fault characteristics (such as compressor fault) are not obvious, and various fault data can no longer be collected, which brings great difficulties to troubleshooting

In addition, according to on-site investigations and on-the-spot investigations, the traditional air conditioners and the currently promoted inverter air conditioners will also have the following situations in actual situations: 1. The fan outside the car is short-circuited by water, causing the fan to burn out. For this situation, it is necessary to detect whether the fan is working online in real time normal

2. The voltage of the generator is very unstable. When the voltage is too high, the frequency converter will be burnt. When the voltage is too low, the system will be undervoltage protected. For this situation, it is necessary to detect the generator bus voltage in real time, record data and alarm when the voltage is undervoltage or overvoltage. If there is a failure for a long time or several times, it is necessary to carefully check the generator to find out the cause of the failure

4. The cooling efficiency of the air conditioner will decrease with time, and regular maintenance and maintenance are required for this situation

5. It is very difficult to disassemble and assemble the air conditioner on site. Once a fault occurs, maintenance will take time and effort to determine the cause of the fault, and the search and replacement cannot be timely and accurate

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