Internal combustion engine internal purification system controller aging test bench

Abstract

The invention discloses an internal combustion engine internal purification system controller aging test bench, and particularly relates to the controller test equipment field, the internal combustion engine internal purification system controller aging test bench comprises a cabinet, the cabinet is internally provided with a controller power supply state control unit, a simulation automobile rotation speed control unit, and a controller control display unit; a controller linkage signal feedback unit is arranged in the cabinet, and detection of functions and working states of corresponding controllers is achieved through the controller power state control unit, the simulated automobile rotating speed control unit, the controller control display unit and the controller linkage signal feedback unit. According to the internal combustion engine internal purification system controller aging test bench, the detection number of each internal combustion engine internal purification system controller aging test bench is 50, 5 units * 10, the yield is high, time is saved, the number of equipped personnel is small, and all functions of the controllers can be conveniently detected. Test procedures are saved, and processing operation is convenient, safe and reliable.

Description

Technical Field

[0001] The invention relates to the field of controller testing equipment, and more specifically to an aging test bench for a controller of an in-engine purification system of an internal combustion engine. Background Art

[0002] Cars have become an indispensable part of people's lives in modern society, but automobile exhaust has also become one of the important sources of environmental pollution. With the intensification of urbanization and traffic congestion, the negative impact of automobile exhaust emissions on the environment and people's health has attracted more and more attention.

[0003] The main components of automobile exhaust include carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOX) and particulate matter. CO2 is a greenhouse gas that has a significant impact on climate change due to its long-term and cumulative effects, while C0 also directly harms human health. High concentrations of CO prevent hemoglobin from absorbing oxygen, leading to suffocation. NOX is one of the main components of acid rain and haze. The diameter of particulate matter ranges widely, from fine nanoparticles to dust up to 10 microns, which can cause air pollution and endanger people's health.

[0004] Automobile exhaust can cause serious damage to the atmospheric environment, water environment and ecological environment. This product: Internal combustion engine in-engine purification system controller aging test bench is mainly used in conjunction with the exhaust purification system control equipment for testing. Its function meets the technical design requirements. The exhaust purification system control equipment is widely used in a large number of vehicles in use. The purification technology uses advanced in-engine purification technology to purify the exhaust gas generated by the car to reduce the pollution of the exhaust gas emission to the atmospheric environment.

[0005] Internal combustion engine in-engine purification system controller aging test bench: uses a multi-channel controller detection circuit to detect the working status of the controller and perform aging at room temperature.

[0006] However, the utility model targets the detection defects of various functions of a single controller device, adopts a function-integrated detection mode, detects the functions of batch controllers and the stability of products, and improves the efficiency and production quality of batch production of controllers.

[0007] Therefore, in order to solve the above problems, an aging test bench for the controller of the internal combustion engine in-engine purification system is proposed. Summary of the invention

[0008] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an aging test bench for an internal combustion engine in-engine purification system controller to solve the detection defects of each function of a single controller device proposed in the above-mentioned background technology, and adopts a functional integrated detection mode to detect the functions of batch controllers and the stability of products, thereby improving the efficiency of batch production of controllers and production quality issues.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal combustion engine in-engine purification system controller aging test bench, comprising a cabinet, a controller power state control unit is arranged inside the cabinet, a simulated automobile speed control unit is arranged inside the cabinet, various controller control display units are arranged inside the cabinet, and a controller linkage signal feedback unit is arranged inside the cabinet.

[0010] Furthermore, the controller power status control unit is composed of five high-efficiency voltage stabilizing devices, which have overload protection, overvoltage protection, short circuit protection, and output delay protection, providing a stable and reliable DC regulated power supply for the controller. The total number of controllers is 5 units*10 units, a total of 50 units, and each 10 units is 1 unit, which is controlled by the red power start switch of the unit to provide the required working voltage and current. Press the red power start switch. In normal state, the red power start switch light is on, and the electronic display simultaneously displays the output voltage value of the voltage stabilizing device. The blue light of the nozzle start switch of each controller is on, indicating that each controller is in working state.

[0011] Furthermore, the simulated automobile speed control unit emits a sinusoidal wave frequency signal from a high-stability sinusoidal wave signal generator, which is transmitted to the corresponding five-way sinusoidal wave balanced matchers. The sinusoidal wave balanced matchers ensure that the sinusoidal wave signal is not attenuated and display that the output value of the sinusoidal wave signal meets the design requirements of the controller. The output end of the sinusoidal wave balanced matcher is transmitted to the speed signal input end of each controller to meet the functional action requirements of the controller and realize the linkage of the control end.

[0012] Furthermore, each controller controls a display unit, and each controller is provided with two control units. When the controller is working, a signal is input into the speed signal input terminal of the controller, the two control units work, the control switch is closed, the blue light of the corresponding working nozzle start switch is on, and the load of the corresponding unit is started at the same time to complete the instruction function, thereby judging whether the output working state of the corresponding controller is normal.

[0013] Furthermore, the controller is linked to the signal feedback unit. When the controller is working, the corresponding linkage signal is actuated to start the corresponding relay. At this time, the load working feedback pump start indicator light turns on in yellow, and the pump is started at the same time.

[0014] Furthermore, the functions and working states of the corresponding controllers are detected through the controller power state control unit, the simulated automobile speed control unit, the controller control display units and the controller linkage signal feedback unit, and normal temperature operation is performed in a normal working environment and test time to meet the needs of mass production.

[0015] Furthermore, the cabinet is provided with five layers inside, and in the five-layer control cabinet, each layer is equipped with a high-stability sine wave signal generator linked to a sine wave balanced matcher.

[0016] Further, the test interface of the test controller is connected by an 18-pin controller plug.

[0017] Furthermore, the power supply of the fifth-floor console has a corresponding red power start switch.

[0018] Furthermore, the test nozzle is linked in two ways, with a dedicated nozzle interface terminal, and each controller has two nozzle interfaces.

[0019] Furthermore, the pump action signal is displayed by the pump start indicator light.

[0020] Technical effects and advantages of the present invention:

[0021] 1. Compared with the existing technology, the internal combustion engine purification system controller aging test bench has a single test quantity of 50 units, 5 units * 10 units, high yield, time saving, less staff, and can easily detect all functions of the controller. The test process is saved, the processing operation is convenient, and it is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of each component of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the sine wave balanced matching device of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of an 18-pin controller plug of the present invention;

[0027] Figure 6 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 7 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0029] The accompanying drawings are marked as follows: 1. Cabinet; 2. Controller power status control unit; 3. Simulated automobile speed control unit; 4. Controller control display unit; 5. Controller linkage signal feedback unit; 101. High-stability sine wave signal generator; 102. Sine wave balanced matcher; 103. Electronic display; 104. Red power start switch; 105. Nozzle start switch; 106. Pump start indicator light; 107. Nozzle interface terminal; 108. 18-pin controller plug. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] like Figures 1 to 7 The internal combustion engine in-engine purification system controller aging test bench shown includes a cabinet 1, a controller power state control unit 2 is arranged inside the cabinet 1, a simulated automobile speed control unit 3 is arranged inside the cabinet 1, a controller control display unit 4 is arranged inside the cabinet 1, and a controller linkage signal feedback unit 5 is arranged inside the cabinet 1.

[0033] Embodiment 2

[0034] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 7 As shown, see the following description for details:

[0035] As a preferred embodiment, the controller power state control unit 2 is composed of five high-efficiency voltage stabilizing devices, with overload protection, overvoltage protection, short circuit protection, and output delay protection, providing a stable and reliable DC regulated power supply for the controller. The total number of controllers is 5 units * 10 units, a total of 50 units, and each 10 units is 1 unit, which is controlled by the red power start switch 104 of the unit to provide the required working voltage and current. Press the red power start switch 104. In normal state, the red power start switch 104 light is on, and the electronic display 103 simultaneously displays the output voltage value of the voltage stabilizing device. The blue light of the nozzle start switch 105 of each controller is on, indicating that each controller is in working state.

[0036] As a preferred embodiment, the simulated automobile speed control unit 3 emits a sine wave frequency signal from a high-stability sine wave signal generator 101, which is transmitted to the corresponding five-way sine wave balanced matchers 102. The sine wave balanced matchers 102 ensure that the sine wave signal is not attenuated and display that the output value of the sine wave signal meets the design requirements of the controller. The output end of the sine wave balanced matcher 102 is transmitted to the speed signal input end of each controller to meet the functional action requirements of the controller and realize the linkage of the control end.

[0037] As a preferred embodiment, each controller controls the display unit 4, and each controller is provided with two control units. When the controller is working, there is a signal input to the speed signal input terminal of the controller, the two control units work, the control switch is closed, the blue light of the corresponding working nozzle start switch 105 is on, and the load of the corresponding unit is started to complete the instruction function, thereby judging whether the output working state of the corresponding controller is normal.

[0038] As a preferred embodiment, the controller linkage signal feedback unit 5, when the controller is working, the corresponding linkage signal is actuated to start the corresponding relay to work, at this time the load working feedback pump start display light 106 is on in yellow and the pump is started at the same time.

[0039] As a preferred implementation, the functions and working states of the corresponding controllers are detected through the controller power state control unit 2, the simulated vehicle speed control unit 3, the controller control display units 4 and the controller linkage signal feedback unit 5, and normal temperature operation is performed in a normal working environment and test time to meet the needs of mass production.

[0040] As a preferred embodiment, the cabinet 1 is provided with five layers inside, and in the five-layer control cabinet, each layer is equipped with a high-stability sine wave signal generator 101 linked with a sine wave balanced matcher 102 .

[0041] As a preferred embodiment, the test interface of the test controller is connected by an 18-pin controller plug 108 .

[0042] As a preferred embodiment, the power supply of the five-layer control console has a corresponding red power start switch 104 .

[0043] As a preferred embodiment, the test nozzle is linked in two ways, with a dedicated nozzle interface terminal 107, and each controller has two nozzle interfaces.

[0044] As a preferred embodiment, the pump action signal is displayed by the pump start indicator light 106. The working process of the present invention is as follows:

[0045] In the later use of this device, the controller power state control unit 2 provides a good 12V regulated power supply to each controller to be tested. When the controller is powered, the blue power indicator light of the controller is on, indicating that the controller starts to work, simulating the power switch of the signal generator of the automobile speed control unit 3. At this time, the signal generator displays the speed sine wave frequency signal required to start the controller. The frequency signal is transmitted to the corresponding five-way sine wave balanced matcher 102, and the stable and attenuated sine wave signal output by the sine wave balanced matcher 102 reaches the input end of the controller. The controller's various control display units 4 receive the positive signal. After the sine wave signal, the control switch is closed, the corresponding light turns blue, and the load work completion instruction function of the corresponding unit is started, thereby judging whether the output working state of the corresponding controller is normal. At the same time, when the test bench is working, each controller's linkage signal is actuated to start the corresponding relay. At this time, the load work feedback light turns yellow, and the start pump of the corresponding controller is started to complete all the tests. In this way, the working principle and work flow of the internal combustion engine in-engine purification system controller aging test bench are completed, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0046] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

Claims

1. An internal combustion engine in-engine purification system controller aging test bench, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with a controller power state control unit (2), the cabinet (1) is provided with a simulated automobile speed control unit (3), the cabinet (1) is provided with a controller control display unit (4), and the cabinet (1) is provided with a controller linkage signal feedback unit (5).

2. The internal combustion engine in-engine purification system controller aging test bench according to claim 1 is characterized by: The controller power state control unit (2) is composed of five high-efficiency voltage stabilizing devices, which have overload protection, overvoltage protection, short circuit protection, and output delay protection, and provide a stable and reliable DC voltage stabilizing power supply for the controller. The total number of controllers is 5 units*10 units, a total of 50 units, and each 10 units form a unit. The corresponding units are controlled by the red power start switch (104) of the unit to provide the required working voltage and current. When the red power start switch (104) is pressed, in a normal state, the red power start switch (104) light is on, and the electronic display (103) simultaneously displays the output voltage value of the voltage stabilizing device of the line, and the blue light of the nozzle start switch (105) of each controller is on, indicating that each controller is in a working state.

3. The internal combustion engine in-engine purification system controller aging test bench according to claim 2 is characterized in that: The simulated automobile speed control unit (3) generates a sine wave frequency signal from a high-stability sine wave signal generator (101), which is transmitted to the corresponding five-way sine wave balance matchers (102). The sine wave balance matchers (102) ensure that the sine wave signal has no attenuation and display that the output value of the sine wave signal meets the design requirements of the controller. The output end of the sine wave balance matcher (102) is transmitted to the speed signal input end of each controller to meet the functional action requirements of the controller and realize the linkage of the control ends.

4. The internal combustion engine in-engine purification system controller aging test bench according to claim 3 is characterized in that: Each controller has a control display unit (4), and each controller is provided with two control units. When the controller is working, a signal is input to the speed signal input terminal of the controller, the two control units work, the control switch is closed, the blue light of the corresponding working nozzle start switch (105) is on, and the load of the corresponding unit is started to work, completing the instruction function, thereby judging whether the output working state of the corresponding controller is normal.

5. The internal combustion engine in-engine purification system controller aging test bench according to claim 4 is characterized in that: The controller linkage signal feedback unit (5) is configured such that when the controller is working, the corresponding linkage signal is activated to start the corresponding relay to work. At this time, the load working feedback pump start display light (106) lights up in yellow, and the pump is started at the same time.

6. The internal combustion engine in-engine purification system controller aging test bench according to claim 1 is characterized by: The functions and working states of the corresponding controllers are detected through the controller power state control unit (2), the simulated automobile speed control unit (3), the controller control display units (4) and the controller linkage signal feedback unit (5), and normal temperature operation is performed in a normal working environment and during the test time, thereby meeting the requirements of mass production.

7. The internal combustion engine in-engine purification system controller aging test bench according to claim 1 is characterized by: The cabinet (1) is provided with five layers inside, and in the five-layer control cabinet, each layer is provided with a high-stability sine wave signal generator (101) linked to a sine wave balanced matcher (102).

8. The internal combustion engine in-engine purification system controller aging test bench according to claim 1 is characterized by: The test interface of the test controller is connected by an 18-pin controller plug (108).

9. The internal combustion engine in-engine purification system controller aging test bench according to claim 1, characterized in that: The power supply of the fifth-floor control console has a corresponding red power start switch (104).

10. The internal combustion engine in-engine purification system controller aging test bench according to claim 1, characterized in that: The test nozzle is linked in two ways and has a dedicated nozzle interface terminal (107). Each controller has two nozzle interfaces.

11. The internal combustion engine in-engine purification system controller aging test bench according to claim 1, characterized in that: The pump action signal is displayed by the pump start indicator light (106).

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