Integrated unit test bench meeting multi-scene test application

Abstract

The utility model relates to an integrated unit test bench capable of satisfying multi-scene test application, and solves the problem that the current detection method is tedious and low in efficiency. Comprising a steel plate shell, a three-gear switch with high-low effectiveness, an LED bulb, a banana terminal with analog quantity / digital quantity input, a 24V adjustable power supply, an OBD diagnosis port and a CAN communication port, a plurality of holes are punched in the steel plate shell, and corresponding identifiers of related installation parts are marked beside the holes; the three-gear switch, the LED bulb and the banana terminal are fixed on the insulating plate and are connected through a lead; the three-gear switch is connected to the positive pole and the negative pole of the 24V adjustable power supply in parallel through a wire, a wiring terminal in the middle of the three-gear switch is welded with a wire harness connection controller pin to serve as an input end, one end of the LED bulb is led out to serve as an output end, and the other end of the LED bulb is connected with GND through a wire; the banana terminal is connected with the output end of the controller and is used as an analog / digital quantity test output end; the positions, corresponding to the three-gear switch and the LED bulb, of the steel plate shell are marked with functions achieved by the three-gear switch. The device can replace a real vehicle for verification.

Description

Technical Field

[0001] The utility model relates to a test bench, in particular to an integrated unit test bench that meets multi-scenario test applications. Background Art

[0002] Currently, to identify the cause of a controller problem, we must install the controller on a real vehicle, remove the bottom and top guard plates on the passenger side, then remove the original controller from the vehicle. Then, we install the problematic controller back on the vehicle. We then verify the controller's functionality by pressing buttons on the driver's side. Once confirmed, we remove the problematic controller and install the original controller on the passenger side. Finally, we complete the installation of the bottom and top guard plates. This existing technology makes the controller problem verification process very cumbersome and inefficient. Utility Model Content

[0003] The utility model uses an integrated unit test bench to replace the actual vehicle function test, solving the problem that the current testing method is complicated and inefficient.

[0004] The utility model is realized by the following technical solutions:

[0005] An integrated unit test bench that meets multi-scenario test applications, including a steel shell, a three-position switch with high and low effective, an LED bulb, banana terminals with analog / digital input, a 24V adjustable power supply, an OBD diagnostic port, and a CAN communication port.

[0006] The steel plate shell is punched with several holes, and the corresponding identification of each relevant installation part is marked next to the holes;

[0007] The three-position switch, LED bulb, and banana terminals are fixed on the insulating plate and connected by wires;

[0008] The three-speed switch is connected in parallel to the positive and negative poles of the 24V adjustable power supply through wires. The wiring harness in the middle of the three-speed switch is soldered to the controller pin as the input end. One end of the LED bulb is connected as the output end, and the other end is connected to GND.

[0009] The banana terminal is connected to the controller output terminal as the analog / digital test output terminal;

[0010] The functions of the three-speed switch and LED bulb corresponding to the steel plate casing are marked.

[0011] This utility model can replace the actual vehicle for verification, improve test efficiency and quality, meet the testing needs of different scenarios, and achieve 100% coverage of test cases; it not only has the functions of detecting the functions of each controller, testing input and output interfaces, testing fault diagnosis and CAN transmission and reception, but also can effectively improve efficiency and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION

[0013] like Figure 1 As shown in the figure, the integrated unit test bench of the utility model mainly consists of 7 parts: ① 0.9mm steel plate shell, ② three-position switch (with high and low effective), ③ LED bulb (24V), ④ banana terminal (analog / digital input), ⑤ 24V adjustable power supply, ⑥ OBD diagnostic port, and ⑦ CAN communication port.

[0014] The specific construction steps are as follows:

[0015] 1. Customize the size of steel plates according to your needs;

[0016] 2. Punch several holes on the steel plate and use laser engraving to print the corresponding logo;

[0017] 3. Fix the three-speed switch, LED bulb, and banana terminals on the insulating board and connect them with wires;

[0018] 4. Use wires inside the integrated unit test bench to connect the three-speed switch in parallel to the positive and negative poles of the adjustable power supply to meet the high and low effective requirements. The wiring harness in the middle of the three-speed switch is welded to the controller pin as the input end. One end of the LED bulb is connected to the output end, and the other end is connected to GND (the negative pole of the power supply).

[0019] 5. The banana terminal is fixed on the test bench and connected to the controller output terminal as the analog / digital test output terminal;

[0020] 6. Build the corresponding stand according to the input (connected to the switch) and output (connected to the bulb) in the pin definition, and mark the functions implemented on the corresponding three-speed switch and LED bulb.

[0021] The utility model has the following beneficial effects:

[0022] 1. Using an integrated unit test bench instead of a real vehicle test allows verification of controller functionality on the bench without removing the vehicle's top and bottom panels or the original body controller, significantly improving efficiency. Testing has shown that using an integrated unit test bench improves controller testing efficiency by 200% compared to real vehicle testing. The advantage of an integrated unit test bench is that it eliminates the need for testing on a real vehicle, ensuring the safety of testers.

[0023] 2. The innovative design of the integrated unit test bench features a steel housing, BOB connector, a three-position switch (with active high and low), a 24V LED bulb, banana terminals (analog input and output), a 24V adjustable power supply, an OBD diagnostic port, and a CAN communication port. Install the problematic controller on the test bench, power the controller and the bench with a 24V power supply, and verify the proper function of the vehicle controller by toggling the switch to check the corresponding bulb output.

Claims

1. An integrated unit test bench that meets multi-scenario test applications, characterized by: It includes a steel shell, a three-speed switch with high and low effective signals, an LED bulb, banana terminals with analog / digital input, a 24V adjustable power supply, an OBD diagnostic port and a CAN communication port. The steel shell is punched with several holes, and the corresponding identification of each related mounting part is marked next to the holes; the three-speed switch, LED bulb and banana terminals are fixed on the insulating plate and connected by wires; the three-speed switch is connected to the positive and negative poles of the 24V adjustable power supply in parallel through wires, and the wiring terminals in the middle of the three-speed switch are respectively welded with wiring harnesses to connect to the controller pins as the input end, one end of the LED bulb is connected as the output end, and the other end is connected to GND; the banana terminals are connected to the output end of the controller as the analog / digital test output end; the functions implemented by the three-speed switch and LED bulb are marked on the corresponding parts of the steel shell.

2. The integrated unit test bench that meets multi-scenario test applications according to claim 1 is characterized by: The thickness of the steel plate shell is 0.9mm.

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