Thermal management system online test system

Abstract

The invention discloses an online test system for a thermal management system, including: a PLC controller, an industrial computer, a CN communication module, a small relay group, a controller group, a frequency conversion module, a test pipeline, a test circulation pump, a sensor module group, a flow meter, and a pneumatic valve are all integrated and arranged in a control cabinet; a circulating water tank is arranged outside the control cabinet, an electric heating rod and a sewage pump are arranged on the circulating water tank, the electric heating rod is connected to the small relay group through the controller group, and the sewage pump is connected to the small relay group through the controller group; the PLC controller is connected to the industrial computer, the industrial computer is connected to the CN communication module, and the CN communication module is used to collect temperature, speed and flow data information of the thermal management system and transmit the collected data information to the industrial computer. The invention can test multiple data parameters of the thermal management system, and is easy to install and detect.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to an online testing system for a thermal management system. Background Art

[0002] At present, only simple tests can be performed on the automotive thermal management system:

[0003] 1. Check whether the product is leaking and whether the installation accessories are loose;

[0004] 2. When testing with power on, there are many wiring connections, and the site is equipped with various water pipes and testing instruments, which is cumbersome to use;

[0005] 3. All test data need to be recorded on site. After the test, a lot of pipeline disassembly and installation operations are required, which leads to low operating efficiency. Summary of the invention

[0006] The object of the present invention is to provide an online testing system for a thermal management system.

[0007] To achieve the above object, the present invention adopts the following contents:

[0008] A thermal management system online test system, comprising: a control cabinet, a PLC controller, an industrial computer, a CN communication module, a small relay group, a controller group, a frequency conversion module, a test pipeline, a test circulation pump, a sensor module group, a flow meter, a pneumatic valve, a circulating water tank, an electric heating rod and a sewage pump. The PLC controller, the industrial computer, the CN communication module, the small relay group, the controller group, the frequency conversion module, the test pipeline, the test circulation pump, the sensor module group, the flow meter and the pneumatic valve are all integrated in the control cabinet. The test pipeline is provided with a pneumatic valve, a sensor module group, a flow meter, a test circulation pump and a circulating water tank. The small relay group, the sensor module group and the flow meter are respectively connected to the PLC controller through wires. The test circulation pump is connected to the small relay group through the frequency conversion module and the controller group in turn; the pneumatic valve is connected to the small relay group through a wire.

[0009] The circulating water tank is arranged outside the control cabinet, and an electric heating rod and a sewage pump are arranged on the circulating water tank. The electric heating rod is connected to the small relay group through the controller group, and the sewage pump is connected to the small relay group through the controller group;

[0010] The PLC controller is connected to the industrial computer via a communication cable, and the industrial computer is connected to the CN communication module via a wire. The CN communication module is used to collect temperature, speed and flow data information of the thermal management system and transmit the collected data information to the industrial computer.

[0011] Preferably, the sensor module group includes a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are both connected to the PLC controller via wires.

[0012] Preferably, it also includes an input device, and the input device is used to input process parameters of the thermal management system into the industrial computer.

[0013] Preferably, the input device is a keyboard, a mouse and / or a wireless barcode scanner.

[0014] Preferably, it also includes a printing device, which is arranged in the control cabinet and connected to the industrial computer, and is used to output a test report according to the analysis results of the industrial computer.

[0015] Preferably, an alarm is also included, which is arranged on the top of the control cabinet and is used to issue a sound and / or light warning according to whether the data information monitored in real time by the industrial computer exceeds a preset threshold.

[0016] Preferably, a cooling fan is also included. The control cabinet is equipped with a cooling fan, and the cooling fan is connected to the industrial computer via a wire.

[0017] Preferably, it also includes an ERP interface module for establishing data connection with an external enterprise ERP system via TCP / IP protocol.

[0018] A thermal management system online testing method comprises the following steps: inputting self-edited test process parameters, detection parameters and detection parameter values ​​into a PLC controller manually or through an ERP system; a thermal management system testing system automatically determines the type of an air compressor and sends a control instruction to test the thermal management system; collecting test data of the thermal management system in real time through an acquisition sensor module group and comparing the data with the detection parameter values; if the data is abnormal, sending an early warning instruction to an air compressor test device for early warning, and if the data is normal, generating a thermal management system test report.

[0019] Preferably, the process parameters include: equipment model, outlet temperature, outlet pressure, exhaust pressure, operating time, voltage, current, power, power factor and maximum pressure.

[0020] The present invention has the following advantages:

[0021] 1. The test system can test various automotive thermal management system products, automatically switch the operation process, unify the output, and improve the operation efficiency;

[0022] 2. By adding the CN communication system, the internal state of the vehicle thermal management system can be tested, expanding the types of vehicle thermal management systems that can be tested on the test bench and better adapting to the testing requirements of the trial version components of electric vehicles;

[0023] 3. Increase the storage function of the system to store different test process parameters, so as to achieve the effect of editing once and using multiple times, and improve the test efficiency;

[0024] 4. The system output processing function has been added. After the test is completed, the system automatically outputs the test report, which reduces the difficulty of operation and simplifies the operation process;

[0025] 5. The system reserves an ERP docking interface, which can realize remote operation and management of operators and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a structural schematic diagram of an online testing system for a thermal management system of the present invention;

[0028] Figure 2 It is a front structural schematic diagram of a control cabinet in an online test system of a thermal management system of the present invention;

[0029] Figure 3 It is a front structural schematic diagram of a control cabinet in an online test system of a thermal management system of the present invention;

[0030] Figure 4 It is a PLC controller circuit diagram of the thermal management system online test system of the present invention;

[0031] Figure 5 It is the main circuit diagram of the online test system of the thermal management system of the present invention;

[0032] In the figure, each reference numeral is:

[0033] 1-control cabinet, 2-PLC controller, 3-industrial computer, 31-display, 4-CN communication module, 5-small relay group, 6-controller group, 7-frequency conversion module, 8-test pipeline, 9-test circulation pump, 10-sensor module group, 11-flow meter, 12-pneumatic valve, 13-circulating water tank, 131-electric heating rod, 132-sewage pump, 14-intelligent instrument, 15-keyboard, mouse, 16-thermal management system, 161-import, 162-export, 17-wireless barcode scanner, 171-barcode scanner bracket, 18-printing equipment, 19-alarm, 20-cooling fan, 21-ERP interface module, 22-switching power supply, 23-air switch, 24-output terminal group, 25-drawer. DETAILED DESCRIPTION

[0034] In order to explain the present invention more clearly, the present invention is further described below in conjunction with preferred embodiments. It should be understood by those skilled in the art that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 5 As shown, the thermal management system online test system includes: a control cabinet 1, a PLC controller 2, an industrial computer 3, a CN communication module 4, a small relay group 5, a control group 6, a frequency conversion module 7, a test pipeline 8, a test circulation pump 9, a sensor module group 10, a flow meter 11, a pneumatic valve 12, a circulating water tank 13, an electric heating rod 14 and a sewage pump 15. The PLC controller 2, the industrial computer 3, the CN communication module 4, the small relay group 5, the controller group 6, the frequency conversion module 7, the test pipeline 8, the test circulation pump 9, the sensor module group 10, the flow meter 11, and the pneumatic valve 12 are all integrated and arranged in In the control cabinet 1, the test pipeline 8 is provided with a pneumatic valve 12, a sensor module group 10, a flow meter 11, a test circulation pump 9 and a circulating water tank 13. One end of the test pipeline 8 is connected to the inlet 161 in the thermal management system 16, and the other end is connected to the outlet 162 of the thermal management system 16; the small relay group 5, the sensor module group 10 and the flow meter 11 are respectively connected to the output terminal group 24 of the PLC controller 2 through wires, and the test circulation pump 9 is connected to the small relay group 5 through the frequency conversion module 7 and the controller group 6 in turn; the pneumatic valve 12 is connected to the small relay group 5 through a wire;

[0038] The circulating water tank 13 is fixedly arranged outside the control cabinet 1, and an electric heating rod 131 and a sewage pump 132 are arranged on the circulating water tank 13. The electric heating rod 131 is connected to the small relay group 5 through the controller group 6, and the sewage pump 132 is connected to the small relay group 5 through the controller group 6;

[0039] The PLC controller 3 is connected to the industrial computer 4 through a communication cable, and the industrial computer 4 is connected to the CN communication module 5 through a wire. The CN communication module 5 is used to collect temperature, speed and flow data information of the thermal management system 16 and transmit the collected data information to the industrial computer 3, wherein the industrial computer 3 analyzes and processes the temperature, speed and flow data information of the thermal management system 16 collected by the CN communication module 5 and the data information collected by the sensor module group 10. The industrial computer 3 includes a display 31, and the display 31 is used to display the data information processed by the industrial computer 3 in real time; the PLC controller 2 is used to determine the type of the thermal management system 16 according to the process parameters and control the operation of the small relay group 5.

[0040] Furthermore, the sensor module group 10 includes a temperature sensor and a pressure sensor, which are connected to the PLC controller via wires and are used to collect real-time temperature and pressure data information of the thermal management system 16. A noise sensor, a current transformer and a voltage power meter can also be set according to requirements, the noise sensor is connected to the PLC controller 2 via wires, and the current transformer and the voltage power meter are connected to the smart meter 14 via wires.

[0041] Furthermore, it also includes an input device, which includes a keyboard, a mouse 15 and / or a wireless barcode scanner 17. The keyboard and mouse 15 are placed in the drawer 25 of the control cabinet 1, and the wireless barcode scanner 17 is set on the barcode scanner bracket 171 of the control cabinet 1. The input device is used to input the process parameters of the thermal management system into the industrial computer 3, and the industrial computer can store the input process parameters to facilitate the subsequent testing of the same type of thermal management system, avoiding secondary input and improving detection efficiency.

[0042] Furthermore, it also includes a printing device 18, which is arranged in the control cabinet 1 and connected to the industrial computer 3, and is used to output a test report according to the analysis result of the industrial computer 3 for the operator to view.

[0043] Furthermore, it also includes an alarm 19, which is arranged on the top of the control cabinet 1. During the test process, it is used to issue a sound and / or light warning according to whether the data information monitored in real time by the industrial computer 3 exceeds a preset threshold, thereby ensuring the safety of the system and operators.

[0044] Furthermore, it also includes a cooling fan 20. The control cabinet 1 is equipped with a cooling fan 20, and the cooling fan 20 is connected to the industrial computer 3 through a wire. When the test temperature is too high, the fan 20 is started to cool down to ensure the safety of the test system.

[0045] Furthermore, it also includes an ERP interface module 21 for establishing data connection with an external enterprise ERP system via the TCP / IP protocol.

[0046] Furthermore, a switching power supply 22 and an air switch 23 are also provided in the control cabinet 1. The switching power supply 22 is used to start the test device, and the air switch 23 is used to protect the test system from current overload.

[0047] A thermal management system online testing method comprises the following steps:

[0048] 1. The ERP system or the local operator of the test bench sends the self-compiled test process parameters to the PLC controller 2 through the industrial computer 3 and the Modbus RTU protocol. The PLC controller 2 identifies the type of vehicle thermal management system 16 to be tested and the test items (flow resistance, leakage, flow, efficiency) according to the product type field in the process parameters. Then the PLC controller 2 starts the small relay group 5, and the small relay group 5 then drives the pneumatic valve 12 of the corresponding controller group 6 to control the inlet and outlet water pressure, adjusts the output water pressure and flow through the frequency conversion module 7, and collects the test flow through the flow meter 11. The process parameters include: equipment model, outlet temperature, outlet pressure, exhaust pressure, operating time, voltage, current, power, power factor and maximum pressure; the detection parameters;

[0049] 2. The CN communication module 4 sends control instructions to the thermal management system 16 to control the operation of the product, and collects temperature, speed, flow, state and other parameters in the thermal management system 16, and feeds back the internal data of the thermal management system 16 to the industrial computer 3 for storage through the CN communication module 4;

[0050] 3. During the entire test process, various sensors such as temperature, pressure, noise, and flow in the test system continuously read the test parameters, and the industrial computer 3 collects, shapes, and re-outputs the parameters of the thermal management system 16 in real time. During the test process, the system will also monitor the test system in real time according to the preset pressure threshold, temperature threshold, and flow threshold. Once a parameter abnormality occurs, the alarm (LED three-color sound and light alarm) 19 will be automatically turned on to ensure the safety of the system and the operator; if no parameter abnormality occurs, after the test is completed, a series of data information such as leakage, flow resistance, efficiency, and flow of the automotive thermal management system will be obtained based on the data collected during the test period.

[0051] Obviously, the embodiments of the online testing system of the thermal management system of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. Thermal management system online test system, characterized in that: include: A control cabinet, a PLC controller, an industrial computer, a CN communication module, a small relay group, a controller group, a frequency conversion module, a test pipeline, a test circulation pump, a sensor module group, a flow meter, a pneumatic valve, a circulating water tank, an electric heating rod and a sewage pump. The PLC controller, the industrial computer, the CN communication module, the small relay group, the controller group, the frequency conversion module, the test pipeline, the test circulation pump, the sensor module group, the flow meter and the pneumatic valve are all integrated in the control cabinet. The test pipeline is provided with a pneumatic valve, a sensor module group, a flow meter, a test circulation pump and a circulating water tank. The small relay group, the sensor module group and the flow meter are respectively connected to the PLC controller through wires. The test circulation pump is connected to the small relay group through the frequency conversion module and the controller group in turn; the pneumatic valve is connected to the small relay group through a wire; The circulating water tank is arranged outside the control cabinet, and an electric heating rod and a sewage pump are arranged on the circulating water tank. The electric heating rod is connected to the small relay group through the controller group, and the sewage pump is connected to the small relay group through the controller group; The PLC controller is connected to the industrial computer via a communication cable, and the industrial computer is connected to the CN communication module via a wire. The CN communication module is used to collect temperature, speed and flow data information of the thermal management system and transmit the collected data information to the industrial computer; A thermal management system online testing method using the thermal management system online testing system comprises the following steps: manually or through an ERP system, inputting self-edited test process parameters, detection parameters and detection parameter values ​​into a PLC controller; the thermal management system testing system automatically determines the type of air compressor and sends a control instruction to test the thermal management system; and collecting test data of the thermal management system in real time through an acquisition sensor module group and comparing the data with the detection parameter values; If the data is abnormal, an early warning instruction is sent to the air compressor test device for early warning; If the data is normal, a thermal management system test report is generated.

2. The thermal management system online testing system according to claim 1, characterized in that: The sensor module group includes a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are both connected to the PLC controller through wires.

3. The thermal management system online testing system according to claim 1, characterized in that: It also includes an input device, which is used to input process parameters of the thermal management system into the industrial computer.

4. The thermal management system online testing system according to claim 3, characterized in that: The input device is a keyboard, a mouse and / or a wireless barcode scanner.

5. The thermal management system online testing system according to claim 1, characterized in that: It also includes a printing device, which is arranged in the control cabinet and connected to the industrial computer, and is used to output a test report according to the analysis result of the industrial computer.

6. The thermal management system online testing system according to claim 1, characterized in that: It also includes an alarm, which is arranged on the top of the control cabinet and is used to issue a sound and / or light warning according to whether the data information monitored in real time by the industrial computer exceeds a preset threshold.

7. The thermal management system online testing system according to claim 1, characterized in that: It also includes a cooling fan. The control cabinet is equipped with a cooling fan, and the cooling fan is connected to the industrial computer through a wire.

8. The thermal management system online testing system according to claim 1, characterized in that: It also includes an ERP interface module for establishing data connection with an external enterprise ERP system via the TCP / IP protocol.

9. The thermal management system online testing system according to claim 1, characterized in that: The process parameters include: equipment model, outlet temperature, outlet pressure, exhaust pressure, operating time, voltage, current, power, power factor and maximum pressure.

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