Diesel engine electronic control unit hardware detection device

Abstract

The utility model relates to a diesel engine electronic control unit hardware detection device, and relates to the field of diesel engine fuel system spare and accessory part testing. The device comprises a signal output panel, a first switching wire harness and a second switching wire harness, the device comprises a power supply, a communication port, a relay, a circuit board and an electronic control unit ECU connector. The circuit board is connected with the communication port, the relay and the ECU connector through the second adapter wire harness; and the communication port is used for realizing communication of the circuit board. On the basis of convenient connection, an output panel is arranged as a visual output state display module, and a switching wire harness, a power supply, a relay and a circuit board are arranged to form a test circuit, so that when an ECU generates a feedback signal based on control of the circuit board, the signal output panel can visually display the signal obtained by the signal output panel; the ECU detection result can be obtained visually, and convenient and batch ECU element detection is realized.

Description

Technical Field

[0001] The utility model relates to the field of diesel engine fuel system parts testing, in particular to a diesel engine electronic control unit hardware detection device. Background Art

[0002] With the increasing degree of automobile electrification, the diesel engine electronic control system has developed from simple functional control to an information-rich, comprehensive, intelligent, safe and reliable integrated engine management system, which involves the application of knowledge in multiple directions and fields. Therefore, as the functions of the diesel electronic control system continue to increase, the control software of the electronic control unit has shifted from extensive control to detailed control. The diesel engine electronic control unit needs to collect dozens of types of information, which are converted into electrical signals through sensors. These electrical signals are both analog and digital. At the same time, the output of the diesel engine electronic control unit is also relatively complex, so it is necessary to systematically test the functions of each module of the diesel engine electronic control unit to ensure the quality of the product.

[0003] The traditional manual Electronic Control Unit (ECU) testing method requires a specially built test environment and pure manual testing. With the cooperation of two engineers, it takes one hour for one ECU. If ECU offline batch testing is to be carried out, a large amount of manpower and material resources are required. Due to resource limitations, only random inspections can be carried out.

[0004] Therefore, the ECU detection method and device in the related art cannot adapt to the requirements of large-scale detection. Summary of the invention

[0005] The utility model relates to a diesel engine electronic control unit hardware detection device, which can adapt to the large-scale ECU component detection requirements. The device includes a signal output panel, a first adapter harness, a second adapter harness; a power supply, a communication port, a relay, a circuit board and an electronic control unit ECU connector;

[0006] The output panel is electrically connected to the circuit board through the first adapter harness, and the signal output panel is used to output signals;

[0007] The second adapter harness is connected to the circuit board, and the circuit board is connected to the communication port, the relay and the ECU connector through the second adapter harness;

[0008] The communication port is used to realize the communication of the circuit board;

[0009] Relays are used to provide auxiliary control of the power supply;

[0010] The power supply is connected to the circuit board and is used to supply power to the circuit board;

[0011] The ECU connector is used to connect the ECU components to be tested.

[0012] In an optional embodiment, the output panel includes at least two output signal indicator lights.

[0013] In an optional embodiment, the power supply is implemented as a battery pack;

[0014] The power supply includes a 12V power supply, a 4V power supply and a 2V power supply.

[0015] In an optional embodiment, the number of output signal indicator lights corresponds to the number of power supplies.

[0016] In an optional embodiment, the circuit board includes a high-end drive input area, a signal indicator terminal, a low-end drive output area, a circuit board signal terminal, a switch signal input area, an analog signal input area, a power input area, and a power signal terminal;

[0017] The signal indicator light terminal is used to connect to the signal output panel;

[0018] The high-end driver input area is used to implement high-end input and output IO control;

[0019] The low-end driver output area is used to implement low-end IO control;

[0020] The circuit board signal terminals are used for wiring and the power signal terminals are used for wiring;

[0021] The switch signal input area is used to input the switch signal;

[0022] The analog signal input area is used to input analog signals;

[0023] The power input area is used to input power signals.

[0024] In an optional embodiment, the second adapter wiring harness includes a wiring harness high-end driving end, a wiring harness low-end driving end, a wiring harness switch signal end, a wiring harness analog signal end, and a wiring harness power input end;

[0025] The high-end drive end of the wiring harness corresponds to the high-end drive input area;

[0026] The low-end drive end of the harness corresponds to the low-end drive output area;

[0027] The wiring harness switch signal terminal corresponds to the switch signal input area;

[0028] The analog signal end of the wiring harness corresponds to the analog signal input area;

[0029] The harness power input terminal corresponds to the power input area.

[0030] In an optional embodiment, the communication port includes at least one of a CAN communication port, a USB communication port, and an On-Board Diagnostics (OBD) interface.

[0031] In an optional embodiment, the diesel engine electronic control unit hardware detection device further includes a box;

[0032] The first adapter harness, the second adapter harness, the power supply, the relay, and the circuit board are located inside the box.

[0033] The communication ports are located on the surface of the box.

[0034] In an optional embodiment, the diesel engine electronic control unit hardware detection device further includes a circuit control switch;

[0035] The circuit control switch is located on the surface of the box.

[0036] The beneficial effects brought by the technical solution provided by the utility model include at least:

[0037] By setting up ECU connectors, quick connection with the ECU components to be tested can be achieved. On the basis of convenient connection, an output panel is set as an intuitive output status display module, and a wiring harness, power supply, relay and circuit board are set up to form a test circuit. When the ECU generates a feedback signal based on the control of the circuit board, the signal output panel can be used to intuitively display the output signal, so as to achieve intuitive acquisition of ECU detection results and convenient and batch ECU component detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic structural diagram of a diesel engine electronic control unit hardware detection device provided by an exemplary embodiment of the present application is shown.

[0040] Figure 2 A schematic structural diagram of a circuit board provided by an exemplary embodiment of the present application is shown.

[0041] Figure 3 A schematic structural diagram of a second switching circuit provided by an exemplary embodiment of the present application is shown.

[0042] The reference numerals in the accompanying drawings are as follows:

[0043] 1-Signal output panel, 2-Box, 3-First adapter harness, 4-12V power supply, 5-Second adapter harness, 6-First CAN communication port, 7-Second CAN communication port, 8-OBD interface; 9-Relay, 10-Circuit board, 11-Power cord, 12-Signal output indicator light. 13-4V power supply, 14-2V power supply, 15-Circuit switch, 16-USB communication port, 17-ECU connector;

[0044] 18- high-end drive input area, 19- signal indicator terminal, 20- low-end drive output area, 21- circuit board signal terminal, 22- switch signal input area, 23- analog signal input area, 24- power input area, 25- power signal terminal;

[0045] 26-wiring harness high-end drive end, 27-wiring harness low-end drive end, 28-wiring harness switch signal end, 29-wiring harness analog signal end, 30-wiring harness power input end. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Figure 1 A structural schematic diagram of a diesel engine electronic control unit hardware detection device provided by an exemplary embodiment of the present application is shown, the device includes a signal output panel, a first adapter harness, a second adapter harness; a power supply, a communication port, a relay, a circuit board and an electronic control unit ECU connector; the output panel is electrically connected to the circuit board through the first adapter harness, and the signal output panel is used to output signals; the second adapter harness is connected to the circuit board, and the circuit board is connected to the communication port, the relay and the ECU connector through the second adapter harness; the communication port is used to realize communication of the circuit board; the relay is used to provide auxiliary control to the power supply; the power supply is connected to the circuit board to supply power to the circuit board; the ECU connector is used to connect the ECU components to be tested.

[0048] It should be noted that what the present application seeks to protect is the hardware structure corresponding to the hardware detection device of the diesel engine electronic control unit. After the technical personnel in this field complete the circuit connection in a corresponding manner, the process of setting the detection items is common knowledge to the technical personnel in this field.

[0049] Next, combine Figures 1 to 3 , the specific structure and working principle of the diesel engine electronic control unit hardware detection device involved in this application are further explained.

[0050] In an alternative embodiment, please refer to Figure 1 The output panel includes at least two output signal indicator lights. When different test items are performed, different signal indicator lights are on.

[0051] In an alternative embodiment, please refer to Figure 1 , the power supply is implemented as a battery pack; the power supply includes a 12V power supply, a 4V power supply and a 2V power supply. In this case, the number of output signal indicators corresponds to the number of power supplies. That is, the 12V power supply, the 4V power supply and the 2V power supply all have corresponding power indicator lights. Please refer to Figure 1 In the embodiment of the present application, a power cord is also configured.

[0052] In an optional embodiment, the circuit board includes a high-end drive input area, a signal indicator terminal, a low-end drive output area, a circuit board signal terminal, a switch signal input area, an analog signal input area, a power input area and a power signal terminal; the signal indicator terminal is used to connect to the signal output panel; the high-end drive input area is used to realize high-end input and output IO control; the low-end drive output area is used to realize low-end IO control; the circuit board signal terminal is used for wiring and the power signal terminal is used for wiring; the switch signal input area is used to input the switch signal; the analog signal input area is used to input the analog signal; the power input area is used to input the power signal.

[0053] Corresponding to the structure of the circuit board, in an optional embodiment, the second adapter wiring harness includes a wiring harness high-end drive end, a wiring harness low-end drive end, a wiring harness switch signal end, a wiring harness analog signal end and a wiring harness power input end; the wiring harness high-end drive end corresponds to the high-end drive input area; the wiring harness low-end drive end corresponds to the low-end drive output area; the wiring harness switch signal end corresponds to the switch signal input area; the wiring harness analog signal end corresponds to the analog signal input area; the wiring harness power input end corresponds to the power input area.

[0054] In an optional embodiment, the communication port includes at least one of a CAN communication port, a USB communication port, and an OBD interface. In the embodiment of the present application, the host computer can communicate with the circuit board through any one of the CAN communication port and the USB communication port. At the same time, the ECU component connected to the ECU connector can realize additional functional configuration through the connection of the OBD interface.

[0055] Optionally, refer to Figure 1 In the embodiment of the present application, the CAN communication port also includes a first CAN communication port and a second CAN communication port.

[0056] In an alternative embodiment, please refer to Figure 1The diesel engine electronic control unit hardware detection device also includes a box body; a first adapter harness and a second adapter harness; a power supply, a relay, and a circuit board are located inside the box body. The communication port is located on the surface of the box body.

[0057] In an optional embodiment, the diesel engine electronic control unit hardware detection device further includes a circuit control switch; the circuit control switch is located on the surface of the box.

[0058] In the case of accessing a computer device as a host computer through a USB interface or a CAN interface, in the embodiment of the present application, the electronic control unit is connected, the circuit control main switch is turned on, the host computer software is turned on, the corresponding port is selected, and the host computer sends instructions to the electronic control unit through CAN according to the communication protocol, the electronic control unit responds correctly, and the input signal test results are displayed by the host computer, and the output signal test results are displayed on the signal output panel to determine whether the electronic control unit can work normally. Optionally, the above process is implemented as the operating steps of the packaged software corresponding to the diesel electronic control unit hardware detection device shown in the present application, and the present application does not limit the specific operating process.

[0059] In summary, the diesel engine electronic control unit hardware detection device provided in each embodiment of the present application realizes a quick connection with the ECU component to be tested by setting an ECU connector. On the basis of convenient connection, an output panel is set as an intuitive output status display module, and a wiring harness, a power supply, a relay and a circuit board are set to form a test circuit. When the ECU generates a feedback signal based on the control of the circuit board, the signal output panel can be used to intuitively display the signal obtained by its output, so as to realize intuitive acquisition of the results of ECU detection and realize convenient and batch ECU component detection.

[0060] The above are only optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A diesel engine electronic control unit hardware detection device, characterized in that: The diesel engine electronic control unit hardware detection device includes a signal output panel, a first adapter harness, a second adapter harness; a power supply, a communication port, a relay, a circuit board and an electronic control unit ECU connector; The output panel is electrically connected to the circuit board via a first adapter harness, and the signal output panel is used to output signals; The second adapter harness is connected to the circuit board, and the circuit board is connected to the communication port, the relay and the ECU connector through the second adapter harness; The communication port is used to realize the communication of the circuit board; The relay is used to provide auxiliary control for the power supply; The power supply is connected to the circuit board and is used to supply power to the circuit board; The ECU connector is used to connect the ECU component to be tested.

2. The diesel engine electronic control unit hardware detection device according to claim 1, characterized in that: The output panel includes at least two output signal indicator lights.

3. The diesel engine electronic control unit hardware detection device according to claim 2, characterized in that: The power supply is implemented as a battery pack; The power supply includes a 12V power supply, a 4V power supply and a 2V power supply.

4. The diesel engine electronic control unit hardware detection device according to claim 3, characterized in that: The number of the output signal indicator lights corresponds to the number of the power supplies.

5. The diesel engine electronic control unit hardware detection device according to claim 1, characterized in that: The circuit board includes a high-end drive input area, a signal indicator light terminal, a low-end drive output area, a circuit board signal terminal, a switch signal input area, an analog signal input area, a power input area and a power signal terminal; The signal indicator light connection terminal is used to connect to the signal output panel; The high-end drive input area is used to implement high-end input and output IO control; The low-end driver output area is used to implement low-end IO control; The circuit board signal terminals are used for wiring and the power signal terminals are used for wiring; The switch signal input area is used to input a switch signal; The analog signal input area is used to input analog signals; The power input area is used to input a power signal.

6. The diesel engine electronic control unit hardware detection device according to claim 5, characterized in that: The second adapter wiring harness includes a wiring harness high-end driving end, a wiring harness low-end driving end, a wiring harness switch signal end, a wiring harness analog signal end, and a wiring harness power input end; The high-end drive end of the wiring harness corresponds to the high-end drive input area; The low-end driving end of the wiring harness corresponds to the low-end driving output area; The wiring harness switch signal terminal corresponds to the switch signal input area; The wiring harness analog signal end corresponds to the analog signal input area; The wiring harness power input terminal corresponds to the power input area.

7. The diesel engine electronic control unit hardware detection device according to claim 1, characterized in that: The communication port includes at least one of a CAN communication port, a USB communication port, and an OBD interface.

8. The diesel engine electronic control unit hardware detection device according to claim 1, characterized in that: The diesel engine electronic control unit hardware detection device also includes a box body; The first adapter harness, the second adapter harness, the power supply, the relay, and the circuit board are located inside the box; The communication port is located on the surface of the box.

9. The diesel engine electronic control unit hardware detection device according to claim 8, characterized in that: The diesel engine electronic control unit hardware detection device also includes a circuit control switch; The circuit control switch is located on the surface of the box.

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