CN110837897A - Intelligent physical examination method and device for electric motor coach entering and exiting station - Google Patents
Intelligent physical examination method and device for electric motor coach entering and exiting station Download PDFInfo
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- 238000012423 maintenance Methods 0.000 abstract description 37
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Abstract
The invention provides an intelligent physical examination method and device for an electric motor coach entering and exiting station, which are characterized in that running state data of the electric motor coach, power battery temperature, power battery voltage, power battery current, whole coach insulation resistance, super capacitor voltage and temperature and driving motor temperature are obtained; comparing the running state data of each vehicle with a corresponding preset threshold value by using the handheld physical examination equipment to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle has a fault. The maintenance process is simple, the maintenance efficiency is high, the problem of poor pertinence of the traditional maintenance mode is solved, accurate maintenance is realized, and each electric motor coach has a customized maintenance scheme; the intelligent detection and operation guidance can reduce the professional level requirement of maintenance personnel; the maintenance process is simple, and the maintenance efficiency is high; the vehicle physical examination system can realize the physical examination of a plurality of vehicles at the same time, saves the physical examination time and has high physical examination efficiency.
Description
Technical Field
The invention belongs to the technical field of intelligent maintenance of electric motor coaches, and particularly relates to an intelligent physical examination method and device for an electric motor coach entering and exiting station.
Background
Along with the continuous development of science and technology, the possession of the electric motor coach in China is continuously increased, so that a lot of convenience is brought to the life of people, and in addition, the development of the electric motor coach is provided with new vitality due to the change of the electronic information industry. The electric motor coach is widely applied, but the safety and reliability problems of the electric motor coach are increasingly remarkable, and a large number of micro-processing units and electronic control devices are used on the electric motor coach, and the number of the micro-processing units and the electronic control devices is up to hundreds on some vehicles. Each microprocessor unit needs to communicate with the related sensor and actuator, and information exchange between the processor units is also needed, although the manufacturing process and other various communication technologies and processing technologies are continuously developed, the use of such numerous microprocessor units and sensors inevitably leads to an increase in failure rate.
At present, through a user publicity manual and organization client training, a user is informed to regularly maintain a vehicle, so that the safety risk can be reduced to a certain extent, and the reliability of vehicle operation is improved. However, the maintenance mode is not targeted, maintenance can be performed only by regular maintenance or according to specified mileage, and the effect of improving the reliability and safety of the electric motor coach is limited; in the traditional maintenance mode of enterprise, connect vehicle OBD interface through the data line and read vehicle state information, but need satisfy following condition: the method comprises the steps of preparing a notebook computer, preparing a data acquisition tool, installing matched special upper computer software, searching an OBD interface of the whole vehicle, exporting data, being in contact with a designer for analysis and analysis, and completing maintenance according to guide suggestions. The whole process is complex and inefficient, and has higher professional requirements on maintenance personnel.
Disclosure of Invention
The invention aims to provide an intelligent physical examination method and device for an electric motor coach entering and exiting station, which are used for solving the problems of complex maintenance process and low efficiency of the electric motor coach in the prior art.
In order to achieve the purpose, the invention provides an intelligent physical examination method for an electric motor coach entering and exiting station, which comprises the following steps:
1) when an electric passenger car enters and exits a station, the vehicle-mounted terminal of each vehicle receives a physical examination request instruction and acquires the running state data of each vehicle according to the physical examination request, wherein the running state data of each vehicle comprises the temperature of a power battery, the voltage of the power battery, the current of the power battery, the insulation resistance of the whole car, the voltage and the temperature of a super capacitor and the temperature of a driving motor;
2) the running state data of each vehicle is sent to the handheld physical examination equipment, and the handheld physical examination equipment compares the running state data of each vehicle with a corresponding preset threshold value to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle breaks down.
In order to conveniently maintain the electric motor coach, after the electric motor coach is judged to have a fault, the handheld physical examination equipment searches for the same historical fault as the fault and outputs a fault solution.
In order to ensure that the vehicle-mounted terminal CAN normally acquire the vehicle running state data, when the vehicle running state data is acquired according to the physical examination request, the CAN network connection state is judged, if the connection is normal, the feedback is successfully started, the vehicle-mounted terminal acquires the vehicle running state data through the CAN network, and otherwise, the CAN network connection fault is fed back.
The invention also provides an intelligent physical examination device for the electric motor coach entering and exiting the station, which comprises a vehicle-mounted terminal and handheld physical examination equipment, wherein the vehicle-mounted terminal is used for receiving the corresponding physical examination request instruction when the electric motor coach enters and exits the station, and acquiring running state data of each vehicle according to the physical examination request, and the running state data of the vehicles comprise power battery temperature, power battery voltage, power battery current, finished automobile insulation resistance, super capacitor voltage and temperature and driving motor temperature; the handheld physical examination equipment is used for receiving the running state data of each vehicle and comparing the running state data of each vehicle with a corresponding preset threshold value to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle breaks down.
In order to conveniently maintain the electric motor coach, after the handheld physical examination equipment judges that the coach breaks down, the handheld physical examination equipment searches for the historical faults which are the same as the faults and outputs fault solutions.
In order to ensure that the vehicle-mounted terminal can normally acquire the vehicle running state data, the handheld physical examination equipment is a mobile phone or an ipad.
The invention has the beneficial effects that:
the method comprises the steps of obtaining running state data of the electric motor coach, power battery temperature, power battery voltage, power battery current, whole coach insulation resistance, super capacitor voltage and temperature and driving motor temperature; comparing the running state data of each vehicle with a corresponding preset threshold value by using the handheld physical examination equipment to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle has a fault. The maintenance process is simple, the maintenance efficiency is high, maintenance and maintenance operation is guided based on the evaluation result and the diagnosis result of the maintenance and maintenance method, the problem of poor pertinence of the traditional maintenance mode is solved, accurate maintenance is realized, and each electric motor coach has a customized maintenance and maintenance scheme; the intelligent detection and operation guidance can reduce the professional level requirement of maintenance personnel; the maintenance process is simple, and the maintenance efficiency is high; the vehicle physical examination system can realize the physical examination of a plurality of vehicles at the same time, saves the physical examination time and has high physical examination efficiency.
Drawings
FIG. 1 is a schematic view of an intelligent physical examination device for an electric motor coach entering and exiting station;
FIG. 2 is a schematic diagram of a network topology of an electric motor coach;
fig. 3 is a software diagnostic diagram of the handheld medical examination device.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings:
the invention provides an intelligent physical examination device for an electric motor coach entering and exiting station, which comprises a vehicle-mounted terminal and handheld physical examination equipment, wherein the vehicle-mounted terminal is used for receiving a corresponding physical examination request instruction when the electric motor coach enters and exits the station, and acquiring running state data of each vehicle according to the physical examination request, wherein the running state data of the vehicles comprise power battery temperature, power battery voltage, power battery current, whole vehicle insulation resistance, super capacitor voltage and temperature and driving motor temperature; the handheld physical examination equipment is used for receiving the running state data of each vehicle and comparing the running state data of each vehicle with a corresponding preset threshold value to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle breaks down.
Particularly, as shown in fig. 1, [ electric ] motor coach business turn over station intelligence physical examination device, including vehicle mounted terminal, handheld physical examination equipment and wireless repeater, wherein, wireless repeater installs in vehicle operation station, when the vehicle business turn over station, connects vehicle mounted terminal and handheld physical examination equipment through wifi network communication, realizes handheld physical examination equipment and [ electric ] motor coach's interconnection, and data are synchronous in real time. The handheld physical examination equipment rapidly finishes the health state assessment when the electric motor coach enters and exits the station, outputs a physical examination report, and provides detailed operation guidance for substandard items. The handheld physical examination device in this embodiment is a mobile phone or an ipad, and as another implementation, the handheld physical examination device may be another terminal device with a physical examination function.
The method for checking the electric motor coach by the intelligent checking device for the electric motor coach entering and exiting station comprises the following steps:
1. the vehicle-mounted terminal is accessed to a whole vehicle CAN network of the electric motor coach and is required to be provided with a CAN bus communication module, a wifi communication module and a data storage module; in the CAN network topology shown in fig. 2, controllers of core components such as a motor controller and a vehicle controller need to be respectively connected to the same CAN network, and a vehicle-mounted terminal and a power battery controller are also connected to the CAN network.
2. Calibrating the vehicle-mounted terminal, creating a wifi network with each vehicle VIN number as a name to distinguish the name of the network, wherein all vehicles share a general network, and starting access; before receiving no 'physical examination request' instruction sent by the handheld physical examination equipment, the function is in a closed state by default.
3. The handheld physical examination equipment CAN be a mobile phone or a portable ipad, a physical examination APP is opened, a physical examination request instruction is sent, the vehicle-mounted terminal judges the CAN network connection state after receiving the physical examination request instruction, if the CAN network connection state is normal, the CAN network connection state is fed back, and if the CAN network connection state is not normal, the CAN network connection state is fed back.
4. After the vehicle-mounted terminal feeds back that the CAN network is successfully started to the handheld physical examination equipment, the vehicle-mounted terminal acquires running state data of each vehicle entering and exiting the station through the CAN network, opens a WiFi (wireless fidelity) forwarding function of CAN data, and starts to transmit the CAN data to the handheld physical examination equipment through a wireless repeater.
5. The handheld physical examination equipment is provided with two functional modules, namely a health state evaluation system and an expert diagnosis system; the handheld physical examination equipment can be simultaneously connected into a plurality of electric motor coaches, and the health state evaluation of the electric motor coaches is completed simultaneously. The specific handheld physical examination equipment can complete the following functions: the system comprises an economic oil consumption measuring and calculating function, a driving behavior analyzing function, a fault monitoring function, a health early warning function, an accurate maintenance planning function and a material abnormity identifying function. The economic oil consumption measuring and calculating function refers to the economic oil consumption of a line and a vehicle type based on big data analysis, and covers double influence factors of various road conditions of vehicle conditions; the driving behavior analysis function refers to monitoring the accelerator, sudden braking, idling air conditioning, ultra-long idling and ultra-economic zone operation (low-grade high speed or high-grade low speed) behaviors of a driver and analyzing the frequency of different bad driving behaviors; the fault monitoring function refers to the real-time monitoring of faults of vehicles of various brands, and covers the faults of various components such as an engine, vehicle electronic devices and the like; the health early warning function refers to the analysis and prediction of vehicle faults based on big data and the continuous accumulation of a prediction diagnosis model; the accurate maintenance planning function refers to the functions of refining maintenance mileage, acquiring vehicle running state information in real time, dynamically adjusting maintenance intervals and reminding maintenance workers in real time; the material abnormity identification function refers to identifying the problem of unrepaired material taking, identifying the problem of repeated material taking of the same fault and identifying the problem that the material consumption is far higher than the average level.
6. When the electric motor coach enters the station, the electric motor coach needs to be charged; when the electric motor coach leaves the station, the electric motor coach is normally just fully charged, so parameters related to charging, such as temperature, voltage, current and other data of a power battery of the electric motor coach, are collected when the electric motor coach leaves the station, and the collected vehicle running state data is specifically shown in table 1. Comparing the running state data of each vehicle with the corresponding preset health threshold value, outputting a health assessment report after the comparison is completed, classifying the health assessment report according to parts, listing the results of each monitoring item one by one, and displaying a green light if the results reach the standard and displaying a red light if the results do not reach the standard.
TABLE 1
7. For the health assessment items which do not reach the standard, historical cases are automatically retrieved through an expert diagnosis system, and detailed fault solutions are output, wherein the software diagnosis of the handheld physical examination equipment is shown in figure 3.
The expert diagnosis system integrates a large number of cases accumulated in the market problem processing process of research personnel and after-sales personnel, wherein the cases comprise problems discovered how, reason analysis of the problems, the problem solving process and measures for avoiding similar problems generated subsequently. The expert diagnosis system can summarize the steps of problem investigation, judgment basis and processing for each case, form detailed operation guidance, expect to reduce the professional level requirement on maintenance personnel, and enable the maintenance to be more convenient.
Taking the whole vehicle insulation safety and health assessment item as an example, when the detection does not reach the standard, the expert diagnosis system can search all cases with similar vehicle types, similar failure modes and similar operation environments from a massive expert database according to keywords such as 'insulation', the cases can be entered, the insulation resistance values of the motor can be measured firstly according to operation guidance, then the insulation resistance values of components such as an air conditioner, an electric air compressor and the like are measured, and the judgment basis in the operation guidance is compared, so that the detection is completed or the maintenance is completed according to the guidance steps. Then, the detailed summary of the operation can be uploaded through the handheld physical examination equipment to form a new expert database case, and the resources of the expert database are continuously strengthened.
The specific embodiments are given above, but the present invention is not limited to the above-described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that no creative effort is needed to design various modified models, formulas and parameters according to the teaching of the present invention. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (6)
1. An intelligent physical examination method for an electric motor coach entering and exiting station is characterized by comprising the following steps:
1) when an electric passenger car enters and exits a station, the vehicle-mounted terminal of each vehicle receives a physical examination request instruction and acquires the running state data of each vehicle according to the physical examination request, wherein the running state data of each vehicle comprises the temperature of a power battery, the voltage of the power battery, the current of the power battery, the insulation resistance of the whole car, the voltage and the temperature of a super capacitor and the temperature of a driving motor;
2) the running state data of each vehicle is sent to the handheld physical examination equipment, and the handheld physical examination equipment compares the running state data of each vehicle with a corresponding preset threshold value to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle breaks down.
2. The intelligent physical examination method for the entrance and exit of the electric motor coach as claimed in claim 1, wherein when it is determined that the vehicle has a fault, the handheld physical examination device searches for the same historical fault as the fault and outputs a fault solution.
3. The intelligent physical examination method for the electric motor coach entering and exiting station as claimed in claim 2, wherein when the vehicle running state data is acquired according to the physical examination request, the CAN network connection state is judged, if the connection is normal, the feedback is started successfully, the vehicle-mounted terminal acquires the vehicle running state data through the CAN network, and otherwise, the CAN network connection fault is fed back.
4. The intelligent physical examination device for the passing-in and passing-out stations of the electric motor coach is characterized by comprising a vehicle-mounted terminal and handheld physical examination equipment, wherein the vehicle-mounted terminal is used for receiving a corresponding physical examination request instruction when the electric motor coach passes in and out of the stations, and acquiring running state data of each vehicle according to the physical examination request, and the running state data of the vehicles comprise power battery temperature, power battery voltage, power battery current, finished automobile insulation resistance, super capacitor voltage and temperature and driving motor temperature; the handheld physical examination equipment is used for receiving the running state data of each vehicle and comparing the running state data of each vehicle with a corresponding preset threshold value to evaluate the health state; and when the vehicle running state data does not meet the corresponding preset threshold value requirement, judging that the vehicle breaks down.
5. The intelligent physical examination apparatus for electric motor coach entering and exiting station as claimed in claim 4, wherein when the handheld physical examination device determines that the vehicle has a fault, the handheld physical examination device searches for the same historical fault as the fault and outputs a fault solution.
6. The intelligent physical examination device for the electric motor coach entering and exiting station as claimed in claim 5, wherein the handheld physical examination equipment is a mobile phone or an ipad.
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| CN201810904450.1A CN110837897A (en) | 2018-08-09 | 2018-08-09 | Intelligent physical examination method and device for electric motor coach entering and exiting station |
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| CN201810904450.1A CN110837897A (en) | 2018-08-09 | 2018-08-09 | Intelligent physical examination method and device for electric motor coach entering and exiting station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112785751A (en) * | 2021-01-05 | 2021-05-11 | 易站智联科技(广州)有限公司 | Processing method, system and storage medium of vehicle-mounted monitoring data |
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