A vehicle heater testing station

Abstract

This utility model discloses a vehicle heater testing bench, relating to the field of vehicle heaters, comprising: an industrial control computer, a heater test bench control box, a CAN box, and a heater; wherein, the industrial control computer establishes serial communication with the heater test bench control box, and the industrial control computer sends commands to the heater test bench control box via serial communication; the heater test bench control box converts the commands into CAN communication commands and sends them to the CAN box; the CAN box converts the commands into command signals and sends them to the heater. This utility model connects the heater to the testing bench, and the industrial control computer issues control commands. Simultaneously, the testing bench can receive fault codes from the heater, translate them into Chinese, and display them on the industrial control computer screen. The heater test bench is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of vehicle heaters, and is particularly applicable to a vehicle heater testing station. Background Technology

[0002] A heater testing bench is a testing device used to test automotive heaters and to address the factory testing requirements for heaters.

[0003] Most existing technologies use rocker switches to control and detect heaters, turning the water pump and heating function on or off by closing or opening the switch. It's also necessary to know in advance whether the heater's feedback signal is high or low, and to adjust the indicator light pin level of the rocker switch. When the indicator light is on, it indicates that the heater has entered heating mode. The heating status indicator light can also flash to indicate a fault according to a pre-defined protocol.

[0004] In view of this, how to provide a heater test bench that can automatically determine whether the heating status indicator output is high or low level, and can also read the fault code fed back by the heater by detecting the heating status signal line according to a pre-agreed protocol, and can also automatically time to help testers record the test time, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a vehicle heater testing station.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vehicle heater testing bench includes: an industrial control computer, a heater test bench control box, a CAN box, and a heater; wherein,

[0008] The industrial control computer establishes serial communication with the heater test bench control box. The industrial control computer sends commands to the heater test bench control box through serial communication. The heater test bench control box converts the commands into CAN communication commands and sends them to the CAN box. The CAN box converts the commands into command signals and sends them to the heater.

[0009] Optionally, the industrial control computer displays the serial port switch status and the translated text of the heater fault codes.

[0010] Optionally, the heater includes a heater controller, a heater pump unit, and a heater heating unit, wherein the heater pump unit and the heater heating unit are electrically connected to the heater controller.

[0011] Optionally, the number of CAN boxes is the same as the number of heaters, and they correspond one-to-one.

[0012] Optionally, the testing station also includes a serial port setting unit for setting the serial port number, baud rate, data bits, stop bits, and checksum of the serial port.

[0013] Optionally, the testing platform is also equipped with buttons and indicator lights for displaying the operating status of the heater. The buttons and indicator lights are electrically connected to the heater controller.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a vehicle heater testing platform, which has the following beneficial effects:

[0015] (1) This utility model connects the heater to the test bench and sends control commands through the industrial control computer. At the same time, the test bench can receive the fault codes sent by the heater and translate them into Chinese and display them on the industrial control computer screen. The heater test bench is easy to operate.

[0016] (2) The industrial control computer screen of the testing platform of this utility model displays the switch status and faults, and makes the testing platform more high-end and simple.

[0017] (3) This utility model greatly reduces the number of test bench lines through communication control and information transmission, making test bench maintenance simpler. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the present invention;

[0020] Figure 2 A schematic diagram of the CAN box structure provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the heater test bench control box provided by this utility model;

[0022] Figure 4 A schematic diagram of the working principle of the heater testing station provided by this utility model;

[0023] Among them, 1-heater, 2-first power supply, 3-heater test bench control box, 4-housing, 5-industrial control computer, 6-CAN box, 7-second power supply. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 As shown, this utility model discloses a vehicle heater testing bench, including: an industrial control computer 5, a heater test bench control box 3, a CAN box 6, and a heater 1; wherein,

[0026] The industrial control computer 5 establishes serial communication with the heater test bench control box 3. The industrial control computer 5 sends commands to the heater test bench control box 3 through serial communication. The heater test bench control box 3 converts the commands into CAN communication commands and sends them to the CAN box 6. The CAN box 6 converts the commands into command signals and sends them to the heater 1.

[0027] Furthermore, the industrial control computer 5 displays the serial port switch status and the translated text of the heater fault codes.

[0028] Furthermore, heater 1 includes a heater controller, a heater water pump unit, and a heater heating unit, which are electrically connected to the heater controller.

[0029] Furthermore, the number of CAN boxes is the same as the number of heaters, and they correspond one-to-one.

[0030] Furthermore, the testing station also includes a serial port setting unit for configuring the serial port number, baud rate, data bits, stop bits, and checksum.

[0031] Furthermore, the testing platform is also equipped with buttons and indicator lights for displaying the operating status of the heater, and the buttons and indicator lights are electrically connected to the heater controller.

[0032] In one specific embodiment, such as Figure 2 and Figure 3 As shown, the specific testing steps of the testing station are as follows:

[0033] Turn on the first power supply 2 of the heater test bench control box 3, open the host computer software of the heater test bench control box 3 on the industrial control computer 5, and click the open serial port button. The current status indicator light changes from red to green, and the serial port is successfully opened.

[0034] The testing station can test 6 heaters simultaneously. Clicking the corresponding "Turn on Water Pump" button will turn on the water pump of the corresponding heater, and the indicator light next to the button will change from red to green. Clicking the corresponding "Turn on Heating" button will turn on the heating function of the corresponding heater, and the indicator light next to the button will change from red to green.

[0035] If heater 1 malfunctions and outputs a flashing fault code, the test bench will detect the fault code and translate it into Chinese for display on the industrial control computer screen.

[0036] Figure 2 The heater 1 includes five pins: pin 1A is empty, pin 1B is the water pump indicator, pin 1C is the heater indicator, pin 1D is the water pump control, pin 1E is empty, pin 1F is the heater control, and pin 1G is empty. The first power supply 2 includes two pins: pin 2A is the +24V positive terminal, and pin 2B is the power ground. The heater test bench control box 3 includes two pins: pin 3A is the CANH port, and pin 3B is the CANL port. The test bench control box 3 also includes a housing 4.

[0037] Figure 3 The CAN box 6 has two pins, where pin 6A represents the CANH port and pin 6B represents the CANL port; the second power supply 7 has two pins, where pin 7A represents the positive terminal of the detection tool power supply and pin 7B represents the negative terminal of the detection tool power supply.

[0038] The detection principle is as follows:

[0039] When the industrial control computer 5 clicks the "Open Serial Port" button, the industrial control computer 5 establishes serial communication with the lower-level heater test bench control box 3. The upper computer sends commands to the lower-level heater test bench control box 3 through serial communication. The lower-level heater test bench control box 3 converts the commands into CAN communication commands and sends them to the CAN box 6. The CAN box 6 converts the commands into command signals and sends them to the heater controller.

[0040] Specifically, such as Figure 4 As shown, when the host computer clicks the "Turn on water pump 1" button, the instruction is sent to the lower-level heater test bench control box 3 via serial communication. Then, the lower-level heater test bench control box 3 converts the instruction into a CAN communication instruction and sends it to the CAN box 6. The CAN box 6 executes the instruction and outputs a high level to the heater 1 through the water pump switch signal line.

[0041] When heater 1 malfunctions, it emits intermittent high-level signals. After detecting the intermittent high-level signals, the test bench sends the information to the lower-level heater test bench control box 3 via CAN communication. The heater test bench control box 3 then sends the information to the upper-level software of the industrial control computer 5 via serial port. The software translates the information into Chinese and displays it in the corresponding editing box.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle heater testing station, characterized by, include: Industrial control computer, heater test bench control box, CAN box, and heater; among them... The industrial control computer establishes serial communication with the heater test bench control box. The industrial control computer sends commands to the heater test bench control box through serial communication. The heater test bench control box converts the commands into CAN communication commands and sends them to the CAN box. The CAN box converts the commands into command signals and sends them to the heater.

2. The vehicle heater testing platform according to claim 1, characterized in that, The industrial control computer displays the serial port switch status and the translated text of the heater fault codes.

3. The vehicle heater testing platform according to claim 1, characterized in that, The heater includes a heater controller, a heater pump unit, and a heater heating unit, which are electrically connected to the heater controller.

4. The vehicle heater testing platform according to claim 1, characterized in that, The number of CAN boxes is the same as the number of heaters, and they correspond one-to-one.

5. A vehicle heater testing platform according to claim 1, characterized in that, The testing station also includes a serial port setting unit for configuring the serial port number, baud rate, data bits, stop bits, and check settings.

6. A vehicle heater testing bench according to any one of claims 1-5, characterized in that, The testing platform is also equipped with buttons and indicator lights to display the operating status of the heater. The buttons and indicator lights are electrically connected to the heater controller.

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