Electric control board burning device of automobile steering auxiliary electric power assisting unit

Abstract

The utility model solves the problem that burning channels need to be switched manually during multi-chip burning of an electric control board of an automobile steering assisting electric power unit, and provides an electric control board burning device of an automobile steering assisting electric power unit, which comprises a cabinet-shaped burning tool and a burner, an integrally connected pressing handle is arranged in the middle of the upper end of the burning tool; a voltage acquisition module is further arranged at the upper end of the burning tool, the burning tool is electrically connected with the burner, and during burning, according to the burning process configured and completed in advance by an upper computer, one-key burning is conducted on a tested piece through a downward pressing handle arranged on the burning tool, so that the burning process is completed. The voltage acquisition module on the burning tool is used for carrying out voltage detection on the tested piece, so that the burning efficiency can be effectively improved, frequent manual switching of burning channels is not needed, the probability of missing burning and wrong burning is reduced, one-key burning is realized, and a report is generated during burning.

Description

Technical Field

[0001] The utility model relates to the field of automobile electronic components, and in particular to an electric control board burning device of an automobile steering auxiliary electric power unit. Background Art

[0002] Chips are also known as microcircuits, microchips, and integrated circuits. With the development of science and technology and the booming development of the electronics industry, the application scope of chips has also expanded rapidly, and the demand has increased day by day. The main processes include: photolithography; etching; thin film (chemical vapor deposition or physical vapor deposition); doping (thermal diffusion or ion implantation); chemical mechanical planarization. At present, every product with electronic chips needs to program the chip on the chip board, so the burning device came into being.

[0003] The common use of dedicated burning tools to burn firmware requires high professional skills of production personnel and is cumbersome to operate. In addition, the interface of the dedicated tool is usually designed for developers and is designed inside the device. When encountering a firmware upgrade scenario, the entire device needs to be disassembled, which is labor-intensive.

[0004] With the advent of the intelligent era of the automotive industry, the intelligent automotive steering assistance system (EPS) has become an important link. In the production process, the electronic control board (EPPECU) chip of the electric power unit in the automotive steering assistance system (EPS) usually needs to burn the control software. The existing burning host computer in the factory needs to manually switch multiple chip burning channels, which is prone to missing burning and wrong burning. Now it is urgent to develop a host computer that can be burned with one click after configuration is completed, as well as a burning device for tooling.

[0005] The Chinese patent publication number is CN210038762U, and the publication date is February 7, 2020. The name of the invention is an automatic burning tool. The scheme discloses an automatic burning tool. Its disadvantage is that it requires manual switching of the burning channel, which is prone to problems such as missed burning and wrong burning. Utility Model Content

[0006] The utility model solves the problem that the burning of multiple chips of the electric control board of the automobile steering assist electric power unit requires manual switching of the burning channels, and provides a burning device for the electric control board of the automobile steering assist electric power unit.

[0007] In order to achieve the above practical purpose, this utility adopts the following technical solutions:

[0008] A device for burning an electric control board of an automobile steering auxiliary electric power unit comprises a cabinet-shaped burning tool and a burner. An integrated push-down handle is provided at the middle position of the upper end of the burning tool; a voltage acquisition module is also provided at the upper end of the burning tool, and the burning tool is electrically connected to the burner.

[0009] In the present invention, a burning device for an electric control board of an automobile steering auxiliary electric power unit cooperates with a cabinet-type burning tool and a burner to burn and modulate the device under test according to the burner. During the burning process, according to the burning process configured in advance by the host computer, the device under test is burned with one key through the downward pressure handle set on the burning tool. After the burning is completed, the voltage of the device under test is detected through the voltage acquisition module on the burning tool, which can effectively improve the burning efficiency, without frequent manual switching of the burning channel, and reduce the probability of missed burning and wrong burning. The solution can also quickly detect the voltage of the device under test after the burning is completed, and also has the function of synchronously scanning the code and generating a report during the burning, which can intuitively and quickly reflect the working process of the burning and the state of the device under test after the burning.

[0010] Preferably, an electrical box is provided below the burning tooling, a closely connected download board is provided on the electrical box, and an upload board is provided above the download board.

[0011] In this application, the upper upload board and the download board provide stable physical support, so that the device under test will not be damaged due to improper operation or external force during the burning process. In addition, the carrier board has a precise positioning structure, which can ensure that the device under test is correctly placed in the predetermined position during the burning process, which is crucial for high-precision connection and burning processes.

[0012] The burning tool is also provided with a guide rail, and the guide rail penetrates and fixes the upper upload board and the download board.

[0013] During the programming process, the DUT may generate a certain amount of heat. The carrier board can help disperse the heat to prevent the chip or other components from being damaged or degraded due to excessive temperature. The carrier board contains insulating materials to electrically isolate the DUT from other components to prevent unexpected situations such as short circuits or charge accumulation.

[0014] The upper upload board and the download board are both arranged in a rectangular shape, and the width of the upper upload board is smaller than the width of the download board. Through the standardized carrier board design, the operation steps of the burning process can be simplified and the work efficiency can be improved. The carrier board on the burning tool is an important auxiliary tool, which ensures the safety of the device under test and the success rate of the burning process.

[0015] Preferably, an integrated pressing column is provided below the pressing handle. In the present invention, a pressing handle is provided on the burning tool to ensure reliable contact between the burning probe and the device under test. By pressing the handle manually or automatically, the burning probe can be accurately pressed on the pin of the chip under test, thereby ensuring effective transmission of data and programming signals.

[0016] By adjusting the pressure of the push handle, the operator can adjust the pressure applied by the probe to the chip under test as needed to avoid damage due to excessive pressure or poor contact due to insufficient pressure. The push handle designed in this practical design can make the entire burning process smoother and more convenient, reduce the possibility of operating errors, and improve work efficiency; the push handle is also equipped with a locking device or other safety measures to prevent accidental movement or lifting of the handle during the burning process, ensuring the safety and reliability of the burning process.

[0017] The burner is provided with a burning control display module, which is rectangular. The burning control display module can provide real-time working status information, such as current burning progress, burning results (success or failure) and error codes inside the device.

[0018] The burning control and display module can set burning parameters, such as burning speed, voltage level, programming algorithm selection, etc.; the burning control and display module can provide necessary prompts and warning information to help the operator understand the precautions or problems in the burning process; the burning control and display module can also be used to display detailed log information and diagnostic data when encountering burning problems, which is convenient for technicians to troubleshoot and adjust equipment. As a preferred embodiment, the burner communicates with the burned test piece through the JTAG interface. In this practice, communication through the JTAG interface can be used to download program code or configuration data to FPGA, CPLD and other devices that support the JTAG protocol. This can achieve firmware updates or hardware configuration of the target device. Through the JTAG interface, developers can access the internal registers and memory of the chip when the system is running for real-time debugging. This includes operations such as single-step execution of instructions, setting breakpoints, and viewing variable values.

[0019] The programmer communicates with the tested device through the JTAG interface, and cooperates with the voltage acquisition module to check whether there is a fault on the tested device, such as a connection error, a circuit board short circuit or an open circuit, and other hardware faults. The communication between the programmer and the tested device through the JTAG interface can not only ensure an accurate and efficient programming and configuration process, but also facilitate the development, testing and maintenance of the system.

[0020] The electrical box is provided with a power switch for opening or closing the burning operation. The voltage collection module is also provided with a voltage collection circuit.

[0021] The beneficial effects of the utility model are as follows: an electric control board burning device for an automobile steering auxiliary electric power unit cooperates with a cabinet-type burning tool and a burner to burn and modulate the tested device according to the burner; during the burning operation, according to the burning process configured in advance by the upper computer, the tested device is burned with one key through a downward pressure handle arranged on the burning tool; after the burning is completed, the voltage of the tested device is detected through a voltage acquisition module on the burning tool, which can effectively improve the burning efficiency, eliminate the need for frequent manual switching of the burning channel, and reduce the probability of missed burning and wrong burning.

[0022] This solution can also quickly detect the voltage of the device under test after the burning is completed. It also has the function of scanning the code and generating a report during the burning, which can intuitively and quickly reflect the burning process and the status of the device under test after burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a side view of the burning tooling structure of this practical embodiment;

[0024] Figure 2 This is a front view of the burning tooling structure of this practical embodiment;

[0025] Figure 3 Schematic diagram of the voltage acquisition circuit of this practical embodiment.

[0026] In the figure: 1. Voltage acquisition module, 2. Push handle, 3. Guide rail, 4. Upload board, 5. Download board, 6. Electrical box, 7. Press column. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of this utility model clearer, the technical scheme in the embodiment of this application will be clearly and completely described below in conjunction with the drawings in the embodiment of this application. Obviously, the described embodiment is only a part of the embodiment of this application, not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technology in this field without creative work are within the scope of protection of this application.

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In this embodiment, if Figure 1 As shown, a device for burning an electric control board of an automobile steering auxiliary electric power unit includes a cabinet-shaped burning tool and a burner. An integrated downward push handle is provided at the middle position of the upper end of the burning tool; a voltage acquisition module is also provided at the upper end of the burning tool, and the burning work is electrically connected to the burner.

[0030] In the present invention, a burning device for an electric control board of an automobile steering auxiliary electric power unit cooperates with a cabinet-type burning tool and a burner to burn and modulate the device under test according to the burner. During the burning process, according to the burning process configured in advance by the host computer, the device under test is burned with one key through the downward pressure handle set on the burning tool. After the burning is completed, the voltage of the device under test is detected through the voltage acquisition module on the burning tool, which can effectively improve the burning efficiency, without frequent manual switching of the burning channel, and reduce the probability of missed burning and wrong burning. The solution can also quickly detect the voltage of the device under test after the burning is completed, and also has the function of synchronously scanning the code and generating a report during the burning, which can intuitively and quickly reflect the working process of the burning and the state of the device under test after the burning.

[0031] An electrical box is arranged below the burning tooling, a closely connected download board is arranged on the electrical box, and an upload board is arranged above the download board.

[0032] In this application, the upper upload board and the download board provide stable physical support, so that the device under test will not be damaged due to improper operation or external force during the burning process. In addition, the carrier board has a precise positioning structure, which can ensure that the device under test is correctly placed in the predetermined position during the burning process, which is crucial for high-precision connection and burning processes.

[0033] The burning tool is also provided with a guide rail, which penetrates and fixes the upper loading board and the downloading board. In the present invention, the burning tool is provided with two guide rails, which are fixed to the edge of the upper loading board, to help the upper loading board to move downward stably under the action of the downward pressing handle to burn the tested device.

[0034] In this embodiment, the guide rail can ensure that the chip to be burned is accurately placed under the burning head to achieve precise alignment, thereby ensuring the accuracy of the burning process; the guide rail provides a solid support structure for the carrier board, which can withstand the impact of vibration, impact, etc. generated during the operation of the equipment and maintain the stability of the burning tooling; the guide rail can guide the carrier board to move smoothly along a preset path, reduce friction and resistance, so that the chip on the carrier board can smoothly enter and exit the burning area during the burning process.

[0035] In this embodiment, the guide rail is cast using wear-resistant material to ensure low wear and good performance under long-term use, simple maintenance and long service life.

[0036] During the programming process, the DUT may generate a certain amount of heat. The carrier board can help disperse the heat to prevent the chip or other components from being damaged or degraded due to excessive temperature. The carrier board contains insulating materials to electrically isolate the DUT from other components to prevent unexpected situations such as short circuits or charge accumulation.

[0037] The upload board and the download board are both rectangular, and the width of the upload board is smaller than that of the download board. The standardized carrier board design can simplify the operation steps of the burning process and improve work efficiency. The carrier board on the burning tool is an important auxiliary tool, which ensures the safety of the device under test and the success rate of the burning process.

[0038] An integrated pressing column is provided below the pressing handle. In the present invention, a pressing handle is provided on the burning tool to ensure reliable contact between the burning probe and the device under test. By pressing the handle manually or automatically, the burning probe can be accurately pressed on the pin of the chip under test, thereby ensuring effective transmission of data and programming signals.

[0039] By adjusting the pressure of the push handle, the operator can adjust the pressure applied by the probe to the chip under test as needed to avoid damage due to excessive pressure or poor contact due to insufficient pressure. The push handle designed in this practical design can make the entire burning process smoother and more convenient, reduce the possibility of operating errors, and improve work efficiency; the push handle is also equipped with a locking device or other safety measures to prevent accidental movement or lifting of the handle during the burning process, ensuring the safety and reliability of the burning process.

[0040] The burner is provided with a burning control display module, which is rectangular. The burning control display module can provide real-time working status information, such as current burning progress, burning results (success or failure) and error codes inside the device.

[0041] The burning control and display module can set burning parameters, such as burning speed, voltage level, programming algorithm selection, etc.; the burning control and display module can provide necessary prompts and warning information to help operators understand the precautions or problems in the burning process; the burning control and display module can also be used to display detailed log information and diagnostic data when encountering burning problems, which is convenient for technicians to troubleshoot and adjust equipment. The burner communicates with the burned test piece through the JTAG interface. In this practice, communication through the JTAG interface can be used to download program code or configuration data to FPGA, CPLD and other devices that support the JTAG protocol. This can achieve firmware updates or hardware configuration of the target device. Through the JTAG interface, developers can access the internal registers and memory of the chip when the system is running for real-time debugging. This includes operations such as single-step execution of instructions, setting breakpoints, and viewing variable values.

[0042] The programmer communicates with the tested device through the JTAG interface, and cooperates with the voltage acquisition module to check whether there is a fault on the tested device, such as a connection error, a circuit board short circuit or an open circuit, and other hardware faults. The communication between the programmer and the tested device through the JTAG interface can not only ensure an accurate and efficient programming and configuration process, but also facilitate the development, testing and maintenance of the system.

[0043] The electrical box is provided with a power switch for turning on or off the burning operation.

[0044] The voltage acquisition module is also equipped with a voltage acquisition circuit, which includes a HC32F005C6PA main control chip, a TM1637 digital tube, a 4-digit LCD display, a RN8209D energy metering chip, capacitors C1 / C2 / C3 / C4 / C5 / C6 / C7 / C8 / C9 / C10 / C11, and resistors R1 / R2 / R3 / R4, as well as X1 3.579545MHZ crystal oscillator; the AVCC port (9th port) of the HC32F005C6PA main control chip is connected to one end of the capacitor C11, the RESETB port (4th port) of the HC32F005C6PA main control chip is respectively connected to the other end of the capacitor C11 and one end of the resistor R5, the P32 port and P33 port of the HC32F005C6PA main control chip are respectively connected to the DIO port and CLK port of the TM1637 digital tube, and the conventional connection method is adopted between the TM1637 digital tube and the 4-bit LCD display.

[0045] The OSCO port and the OSCI port of the RN8209D electric energy metering chip are respectively connected to two ports of the X1 3.579545MHZ crystal oscillator, one port of the X1 3.579545MHZ crystal oscillator is connected to one end of the capacitor C1, the other port of the X1 3.579545MHZ crystal oscillator is connected to one end of the capacitor C2, and the other end of the capacitor C1 is connected to the other end of the capacitor C2; the DVDD port of the RN8209D electric energy metering chip is respectively connected to one end of the capacitor C8 and one end of the capacitor C9, and the other end of the capacitor C8 and the other end of the capacitor C9 are grounded together.

[0046] The AVDD port of the RN8209D electric energy metering chip is respectively connected to one end of the resistor R1, one end of the capacitor C6 and one end of the capacitor C7, and the other end of the capacitor C6 and the other end of the capacitor C7 are grounded together; the V3P port, V3N port, and REFV port of the RN8209D electric energy metering chip are correspondingly connected to one end of the capacitor C10, one end of the capacitor C5, and one end of the capacitor C4; one end of the capacitor C10 is also connected to one end of the resistor R3, one end of the capacitor C5 is also connected to one end of the resistor R2, and one end of the capacitor C4 is also connected to one end of the capacitor C3; the other end of the resistor R3, the other end of the resistor R2, the other end of the capacitor C10, the other end of the capacitor C5, the other end of the capacitor C3, and the other end of the capacitor C4 are grounded together.

[0047] In this embodiment, the host computer is developed based on the NI LabVIEW platform and communicates with the slave computer through TCP / IP and RS-232 serial communication protocols; the burning system includes a host computer, a burner, a burning tool, and a barcode scanner. The burning tool adopts hand-pressing operation, and the burner and the device under test communicate via the JTAG interface. The SHM WriteNOW4 burner is selected.

[0048] The main interface of the burning host computer includes model selection, chip channel selection, chip quantity selection (<=3), connect burning device button, start burning button, configuration button, exit program button and burning result display; the configuration interface includes project configuration tab and port configuration tab.

[0049] In this embodiment, the working process of an electric control board burning device for an automobile steering auxiliary electric power unit is roughly as follows:

[0050] Click the Start button on the main interface, and a scan box will pop up to prompt you to scan the code. After scanning, automatic burning will begin. After completion, a scan box will pop up to wait for scanning, or you can exit the scan interface to end the test.

[0051] The main program interface uses the state machine and event-triggered mode, including the states idle, init, model_init, connection, get_barcode, master, delay, slave, data_processing, report, clear, and exit.

[0052] The idle state mainly handles event triggering.

[0053] The init state mainly initializes the ethernet port, RS-232 port, and control references.

[0054] The model_init state reads the model configuration.

[0055] In connection state, the sub-function is called to use TCP / IP and RS-232 serial communication protocols to implement communication sending and receiving instructions, and detect whether it is connected to the burning device. If the connection is successful, the connection status control lights up green, otherwise it lights up red.

[0056] get_barcode status, get the scan code information.

[0057] In master state, call LAN PRO and UART PRO sub-functions to use TCP / IP and RS-232 serial communication protocols to implement communication and send and receive instructions and detect whether the burning is successful.

[0058] The delay state is mainly a 1000ms delay function.

[0059] In slave state, call LAN PRO and UART PRO sub-functions to use TCP / IP and RS-232 serial communication protocols to implement communication and send and receive instructions and detect whether the burning is successful.

[0060] data_processing state, the main function is to process data and display the results.

[0061] Clear status, the main function is to clear the status of the last burning.

[0062] The main function of the exit state is to exit the burning host computer.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

Claims

1. A device for burning an electric control board of an automobile steering auxiliary electric power unit, characterized in that: The utility model comprises a cabinet-shaped burning tool and a burner. An integrated pressing handle is arranged at the middle position of the upper end of the burning tool. A voltage collecting module is also arranged at the upper end of the burning tool. The burning tool is electrically connected with the burner.

2. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 1 is characterized in that: An electrical box is arranged below the burning tooling, a closely connected downloading board is arranged on the electrical box, and an uploading board is arranged above the downloading board.

3. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 2 is characterized in that: The burning tool is also provided with a guide rail, and the guide rail penetrates and fixes the upper upload board and the download board.

4. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 2 is characterized in that: The upload board and the download board are both arranged in a rectangular shape, and the width of the upload board is smaller than the width of the download board.

5. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 1 is characterized in that: An integrated pressing column is provided below the pressing handle.

6. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 1 is characterized in that: The burner is provided with a burning control and display module, and the burning control and display module is rectangular.

7. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 1 or 6, characterized in that: The programmer communicates with the tested piece to be programmed via a JTAG interface.

8. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 2 is characterized in that: The electrical box is provided with a power switch for turning on or off the burning operation.

9. The electronic control board burning device of the automobile steering auxiliary electric power unit according to claim 1 is characterized in that: The voltage collection module is also provided with a voltage collection circuit.

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