A vehicle ECU data flashing tooling

Abstract

The present invention relates to a vehicle ECU data writing tooling, which includes a displacement control module and a data writing module. The displacement control module includes a lateral limiting module, a longitudinal limiting module, and a driving module disposed on a bottom plate. The lateral limiting module is provided with a working station and can displace horizontally. The longitudinal limiting module can extend and retract longitudinally towards the working station. The driving module can extend and retract horizontally towards the working station. The data writing module includes a probe module and a control box connected by a circuit. The probe module is fixedly arranged on the side of the working station facing away from the driving module. When the driving module extends, it can drive the ECU to be electrically connected to the probes of the probe module. Multiple selection switches in the control box are respectively connected to the probes of the probe module through a multi-channel interlock circuit. The selection switches are used to switch data writing channels, and the multi-channel interlock circuit allows only one data writing channel to be conducted at any time. The tooling of the present invention improves work efficiency, improves product quality, and reduces work difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle ECU production, and in particular to a vehicle ECU data flashing tool. Background Art

[0002] There are generally three ways to upgrade the vehicle ECU flash program on the market: the first one: K line flash equipment; the second one: CAN line flash equipment; the third one: bottom-level flash program. At present, the most commonly used method for mass production is CAN line flash equipment. When flashing ECUs in batches with CAN lines, you need to plug and unplug the power cord every time you flash an ECU. Every time you switch the ECU type, you need to plug and unplug 4 data cables. Too many plug-in and unplug times will cause the plug to be damaged, communication interruption, or cause many abnormalities such as failure to connect to the ECU, increase the physical load of workers, and affect the production efficiency of the product. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a vehicle ECU data flashing tool, which only needs one electrical connection and can switch the data flashing channel through the control box of the data flashing module, thereby completing the data flashing of the three major functional modules of ABS, EBS and ELC of the vehicle ECU respectively, simplifying the production process and operation difficulty and improving production efficiency.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A vehicle ECU data flashing tool comprises a displacement control module and a data flashing module arranged adjacent to the displacement control module, wherein the displacement control module comprises a lateral limit module, a longitudinal limit module and a driving module arranged on a bottom plate, wherein the lateral limit module can be displaced in the lateral direction and a station is arranged on the lateral limit module, wherein the longitudinal limit module is arranged above the station and can be extended and retracted toward the station in the longitudinal direction, and wherein the driving module is arranged at one side of the station and can be extended and retracted toward the station in the lateral direction; wherein the data flashing module comprises a probe module and a control box connected by a circuit, wherein the probe module is fixedly arranged on a side of the station away from the driving module, and when the driving module is extended, the ECU can be driven to be electrically connected to a probe of the probe module; wherein the control box comprises a multi-way interlocking circuit, wherein a plurality of selection switches are arranged in the multi-way interlocking circuit, wherein the plurality of selection switches are respectively connected to a plurality of probes of the probe module through the multi-way interlocking circuit, wherein the selection switch is used to switch a data flashing channel, and wherein the multi-way interlocking circuit allows only one data flashing channel to be turned on at any time.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Preferably, the multiple selection switches include an ABS switch, an EBS switch, and an ELC switch, and the multi-channel interlock circuit further includes relays KA1 to KA6; the normally open contact of the ABS switch, the normally closed contact of the EBS switch, the normally closed contact of the ELC switch, and the control coil of relay KA1 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA2 is connected in parallel with the control coil of relay KA1. The normally open contact of relay KA1 is connected in series between the data line and the ABS data writing pin of the probe module. The normally open contact of relay KA2 is connected in series between the power supply and the power supply pin of the probe module. The normally open contact of the EBS switch, the normally closed contact of the ABS switch, the normally closed contact of the ELC switch, and the control coil of relay KA3 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA4 is connected in parallel with the control coil of relay KA3. The normally open contact of relay KA3 is connected in series between the data line and the EBS data writing pin of the probe module. The normally open contact of relay KA4 is connected in series between the power supply and the power supply pin of the probe module. The normally open contact of the ELC switch, the normally closed contact of the EBS switch, the normally closed contact of the ABS switch, and the control coil of relay KA5 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA6 is connected in parallel with the control coil of relay KA5. The normally open contact of relay KA5 is connected in series between the data line and the ELC data writing pin of the probe module. The normally open contact of relay KA6 is connected in series between the power supply and the power supply pin of the probe module.

[0008] Preferably, the lateral limiting module includes a limiting plate and two parallel sliding rails. The two sliding rails are symmetrically arranged on both sides of the limiting plate along the telescopic direction of the driving module, and the sliding rails are fixedly installed on the bottom plate. The two side edges of the limiting plate are respectively slidably connected to the two sliding rails and can slide along the sliding rails. The top end of the limiting plate is provided with an ECU positioning groove, and the shape of the ECU positioning groove is adapted to the ECU. The telescopic end of the driving module can extend into the ECU positioning groove and abut against the ECU.

[0009] Preferably, a detachable limiting block is further provided in the ECU positioning groove. The limiting block is arranged parallel to the sliding rail and is used for limiting the ECU in the direction perpendicular to the sliding rail.

[0010] Preferably, the longitudinal limiting module includes a mounting base, a first pull rod, and a second pull rod. The mounting base is fixedly installed on the bottom plate. The second pull rod intersects with the first pull rod and is perpendicular to the slide rail. One end of the first pull rod is hinged to the mounting base, and the other end is provided with a downward first pressing head, which is arranged above the ECU. One end of the second pull rod is hinged to the mounting base, and the other end is provided with a first handle. A pressing block is fixedly arranged on the second pull rod. When the second pull rod rotates along the hinge point, the pressing block is slidably matched with the first pull rod to push the first pressing head to move longitudinally.

[0011] Preferably, the first pressing head includes a fixed end and a pressing end coaxially sleeved. The fixed end and the pressing end are slidably connected along their own axial directions. The fixed end is installed at the end of the first pull rod, and the pressing end faces the limiting plate. A buffer spring is coaxially sleeved on the outer periphery of the first pressing head, and both ends of the buffer spring are abutted against the fixed end and the pressing end respectively.

[0012] Preferably, the driving module includes a third pull rod and a fourth pull rod. One end of the third pull rod is hinged to the bottom plate through a connecting piece, and the other end is provided with a second handle. One end of the fourth pull rod is hinged to the middle section of the third pull rod, and the other end is provided with a second pressing head, which extends into the ECU positioning groove and cooperates with the ECU. The rotation planes of the third pull rod and the fourth pull rod are parallel to the direction of the slide rail.

[0013] Preferably, a guiding groove is provided on the groove wall of the ECU positioning groove. The second pressing head penetrates through the guiding groove and can slide along the guiding groove.

[0014] Preferably, at least two guiding sleeves are provided on the bottom plate. At least two of the guiding sleeves are symmetrically distributed on both sides of the bottom plate. The guiding sleeves are longitudinally arranged and cooperate with the external positioning pins.

[0015] Preferably, a handle is fixedly arranged on the bottom plate.

[0016] The beneficial effects of the present invention are as follows: The vehicle ECU data writing tooling of the present invention designs a probe module that matches the wiring port of the ECU. The probe replaces the traditional TYCO connector, and there is no need to plug and unplug any anti-loosening plugs when replacing an ECU workpiece; when switching the function module for data writing, there is no need to plug and unplug any data lines, and the switching of the function module is all completed by the corresponding selection switch, saving time and effort. To power off the ECU, only need to turn the gear of the selection switch to the off position, and there is no need to unplug the power plug of the power supply socket, completely eliminating potential safety hazards. A multi-channel interlock circuit is designed for reliable error prevention. Only one of the three selection switches is on, and the other two are off. And only when the gear of the selection switch is correctly selected can it be used normally. When two or three selection switches are on, the function of switching the data writing channel cannot take effect, preventing ECU damage. Through the displacement control module, the wiring port of the ECU is driven to achieve electrical connection of all pins with this probe module at one time, and then switch to the expected data writing channel through multiple selection switches on the control box to perform data writing of the corresponding function module; after completing the data writing of one module, turn off the current selection switch and close the selection switch corresponding to the next function module. Due to the action of the multi-channel interlock circuit, the previous data writing channel is closed and the new data writing channel can be opened, so as to perform the data writing work of the next function module, achieving reliable error prevention. Therefore, only one wiring is required and multiple selection switches are operated in sequence to complete the data writing work of all function modules of the ECU, simplifying the data writing work process, simplifying the operation difficulty, improving the work efficiency, and reducing the mistakes caused by manual connection and wire replacement, which is worthy of promotion in the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present invention;

[0018] Figure 2 is a top view of the displacement control module of the present invention;

[0019] Figure 3 is a front view of the displacement control module of the present invention;

[0020] Figure 4 is a left view of the displacement control module of the present invention;

[0021] Figure 5 is a schematic electrical principle diagram of the data writing module of the present invention;

[0022] Figure 6 is a schematic circuit connection diagram when data writing is performed on each function module of the present invention.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Base plate, 2. Horizontal limit module, 201. Limit plate, 202. Slide rail, 203. ECU positioning groove, 2031. Guide groove, 204. Limit block, 3. Longitudinal limit module, 301. Mounting seat, 302. First pull rod, 303. Second pull rod, 304. First clamping head, 305. First handle, 306. Pressure block, 307. Buffer spring, 308. Fixed seat, 4. Drive module, 401. Third pull rod, 402. Fourth pull rod, 403. Second handle, 404. Second clamping head, 5. Probe module, 6. Control box, 601. Selection switch, 7. Guide sleeve, 8. Positioning pin, 9. Handle. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] like Figures 1 to 4 As shown, this embodiment provides a vehicle ECU data flashing tool, including a displacement control module and a data flashing module arranged adjacent to the displacement control module, the displacement control module includes a lateral limit module 2, a longitudinal limit module 3 and a drive module 4 arranged on a base plate 1, the lateral limit module 2 can be displaced in the lateral direction, and a workstation is provided on the lateral limit module 2, and the workstation is used to place and fix the ECU workpiece to be data flashed; the longitudinal limit module 3 is arranged above the workstation and can be extended toward the workstation in the longitudinal direction, the drive module 4 is arranged on one side of the workstation and can be extended toward the workstation in the lateral direction; the data The flashing module includes a probe module 5 and a control box 6 connected by a circuit. The probe module 5 is fixedly arranged on a side of the workstation away from the driving module 4. When the driving module 4 is extended, the ECU can be driven to electrically connect with the probe of the probe module 5; the control box 6 includes a multi-way interlocking circuit, in which a plurality of selection switches 601 are provided. The plurality of selection switches 601 are respectively connected to the plurality of probes of the probe module 5 through the multi-way interlocking circuit. The selection switch 601 is used to switch the data flashing channel. The multi-way interlocking circuit allows only one data flashing channel to be turned on at any time.

[0027] Due to the conventional ECU, among the 17 pins of its wiring ports, when implementing the ABS, EBS, and ELC functions respectively, the definitions of the same pin corresponding to different functional modules are not necessarily the same. Therefore, the current practice is to wire separately when performing data writing for each functional module. After completing the data writing of one functional module, the original wiring is removed and re-wired for the data writing of the next functional module. This causes problems of low efficiency and complex operation, which is not conducive to production line implementation. The vehicle ECU data writing tooling provided in this embodiment abandons the existing operation scheme of wiring each of the ABS, EBS, and ELC functional modules separately, and designs a probe array (i.e., the above-mentioned probe module 5) that matches the ECU wiring port. The displacement control module is used to drive the ECU wiring port to achieve electrical connection of all pins with this probe module 5 at one time. Then, by switching the multiple selection switches 601 on the control box 6 to the expected data writing channels, the data writing of the corresponding functional modules can be performed. After completing the data writing of one module, close the current selection switch 601 and close the selection switch 601 corresponding to the next functional module. Due to the function of the multi-channel interlock circuit, the previous data writing channel is closed and the new data writing channel is opened, so as to perform the data writing work of the next functional module. It should be noted that for the convenience of production line production, the probe module 5 in this embodiment is provided with 18 probes, one of which is an idle pin, and a plastic pin can be used (taking advantage of its structural stability and insulation), and the remaining 17 pins correspond one-to-one to the 17 pins of the ECU port. Therefore, the solution of this embodiment only needs to perform wiring once and operate multiple selection switches 601 in sequence to achieve the data writing work of all functional modules of the ECU. The solution of this embodiment simplifies the data writing work process, simplifies the operation difficulty, improves the work efficiency, and reduces the mistakes caused by manual connection and wire replacement, which is worthy of promotion in the production line.

[0028] On the basis of the above technical solution, this embodiment can also be improved as follows.

[0029] Such as Figures 5 to 6As shown in the electrical schematic diagram, multiple said selection switches 601 include an ABS switch, an EBS switch, and an ELC switch, and the multi-channel interlock circuit further includes relays KA1 to KA6; the normally open contact of the ABS switch, the normally closed contact of the EBS switch, the normally closed contact of the ELC switch, and the control coil of relay KA1 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA2 is connected in parallel with the control coil of relay KA1. The normally open contact of relay KA1 is connected in series between the data line and the ABS data writing pin of probe module 5, and the normally open contact of relay KA2 is connected in series between the power supply and the power supply pin of probe module 5, jointly forming an ABS control loop; the normally open contact of the EBS switch, the normally closed contact of the ABS switch, the normally closed contact of the ELC switch, and the control coil of relay KA3 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA4 is connected in parallel with the control coil of relay KA3. The normally open contact of relay KA3 is connected in series between the data line and the EBS data writing pin of probe module 5, and the normally open contact of relay KA4 is connected in series between the power supply and the power supply pin of probe module 5, jointly forming an EBS control loop; the normally open contact of the ELC switch, the normally closed contact of the EBS switch, the normally closed contact of the ABS switch, and the control coil of relay KA5 are sequentially connected in series between the positive and negative poles of the power supply. The control coil of relay KA6 is connected in parallel with the control coil of relay KA5. The normally open contact of relay KA5 is connected in series between the data line and the ELC data writing pin of probe module 5, and the normally open contact of relay KA6 is connected in series between the power supply and the power supply pin of probe module 5, jointly forming an ELC control loop.

[0030] When performing data writing for the ABS function module, rotate the ABS switch to close its normally open contact. At this time, the control coils of relay KA1 and relay KA2 are energized, driving the normally open contacts of relay KA1 and relay KA2 to close, so that the ABS data writing pin on the probe module 5 is connected to the external data line; at the same time, the positive and negative poles of the power supply are respectively connected to the corresponding power supply pins on the probe module 5, enabling the ABS function module of the ECU to obtain the working power supply. Therefore, by rotating the ABS switch to close its normally open contact, the ABS data writing channel is connected. At the same time, the normally closed contact of the ABS switch is synchronously disconnected, causing the EBS control loop and the ELC control loop to be in the off state, realizing the interlock of the three control loops, so that only one of the control loops is allowed to be connected at any time. Similarly, when rotating the EBS switch to close its normally open contact, the EBS control loop is conducted, connecting the EBS data writing channel, and the other two data writing channels are closed; when rotating the ELC switch to close its normally open contact, the ELC control loop is conducted, connecting the ELC data writing channel, and the other two data writing channels are closed. Since in the ports of the ECU, different function modules involve the sharing of pins, and the same pin may have different definitions in different function modules (for example, in the EBS function module, pin No. 13 is the positive power input pin, but in the ELC function module, it is used as a data writing pin for communication with the CAN bus), the multi-channel interlock circuit is adopted to prevent the misconnection of the pin wiring, prevent the ECU from burning out, and ensure the safety of the ECU during the data writing process.

[0031] In this embodiment, as Figure 1 and Figure 2 shown, the lateral limit module 2 includes a limit plate 201 and two parallel slide rails 202. The two slide rails 202 are symmetrically arranged on both sides of the limit plate 201 along the telescopic direction of the drive module 4, and the slide rails 202 are fixedly installed on the bottom plate 1. The two side edges of the limit plate 201 are respectively slidably connected to the two slide rails 202 and can slide along the slide rails 202; the top end of the limit plate 201 is provided with an ECU positioning groove 203, and the outer shape of the ECU positioning groove 203 is adapted to the ECU; the telescopic end of the drive module 4 can extend into the ECU positioning groove 203 and abut against the ECU for cooperation.

[0032] The ECU positioning slot 203 serves as a work station for positioning the ECU workpiece and aligning the ports of the ECU with the probe module 5 to ensure a reliable electrical connection with the probe module 5 during the data writing process. The limiting plate 201 carries the ECU workpiece and can slide along the slide rail 202. When the telescopic end of the driving module 4 pushes the ECU, the limiting plate 201 carries the ECU and moves synchronously towards the probe module 5 until the ports of the ECU are accurately docked with the probe module 5. The lateral limiting module 2 prevents the offset during the docking of the ports of the ECU and the probe module 5, ensuring the accuracy of the electrical connection.

[0033] In this embodiment, a detachable limiting block 204 is further provided in the ECU positioning slot 203. The limiting block 204 is arranged parallel to the slide rail 202 and is used to limit the ECU in the direction perpendicular to the slide rail 202.

[0034] The limiting block 204 can be arranged on one side of the ECU positioning slot 203 along the direction of the slide rail 202. An oblong hole can be provided on the limiting block 204, and the long direction of the oblong hole can be perpendicular to the direction of the slide rail 202. At the same time, a threaded hole corresponding to the position of the oblong hole is provided on the limiting plate 201. The limiting block 204 and the limiting plate 201 are detachably connected by a detachable bolt passing through the oblong hole and the threaded hole. When installing the ECU, by adjusting the position of the limiting block 204, the limiting block 204 presses the ECU tightly in the ECU positioning slot 203, so as to ensure that the ports of the ECU are aligned with the probe module 5. Then, tighten the bolt to fix the position of the ECU.

[0035] In this embodiment, as Figures 1 to 4As shown in the figure, the longitudinal limiting module 3 includes a mounting base 301, a first pull rod 302 and a second pull rod 303. The mounting base 301 is fixedly installed on the bottom plate 1. The second pull rod 303 intersects with the first pull rod 302 and is perpendicular to the slide rail 202. One end of the first pull rod 302 is hinged to the mounting base 301, and the other end is provided with a downward first pressing head 304, which is arranged above the ECU. One end of the second pull rod 303 is hinged to the mounting base 301, and the other end is provided with a first handle 305. A pressing block 306 is fixedly arranged on the second pull rod 303. When the second pull rod 303 rotates along the hinge point, the pressing block 306 is slidably matched with the first pull rod 302 to push the first pressing head 304 to move longitudinally. On this basis, as a preferred embodiment, the end of the second pull rod 303 hinged to the mounting base 301 can be set in the shape of a U-shaped fork. The open end of the U shape is hinged to the mounting base 301. The first pull rod 302 passes through the U-shaped fork and intersects with the second pull rod 303, and their rotation planes are coplanar. The pressing block 306 is arranged at the closed end of the U shape (i.e., the bottom position corresponding to the U-shaped groove). When the second pull rod 303 rotates along its hinge point with the mounting base 301, the pressing block 306 pushes the first pull rod 302 to rotate synchronously, so as to drive the first pressing head 304 to press the lower ECU into the ECU positioning groove 203 of the limiting plate 201. In order to facilitate the reset of the first pull rod 302 after the data writing process is completed, another V-shaped hinge rod (not shown in the figure) can be provided. One end of the V-shaped hinge rod is hinged to the second pull rod 303, and the other end is hinged to the first pull rod 302. Since the V-shaped vertex in the middle section of the V-shaped hinge rod is the hinge point, the included angle of the V-shaped hinge rod can be changed. Therefore, when the pressing block 306 on the second pull rod 303 presses down to drive the first pull rod 302 to move downward, the included angle of the V-shaped hinge rod becomes smaller; when the data writing is completed and the ECU needs to be released, the second pull rod 303 is pulled up through the first handle 305, the angle of the V-shaped hinge rod becomes larger, and at the same time, the first pull rod 302 is pulled to rotate in the reverse direction, so as to leave the ECU and achieve reset.

[0036] In order to adjust the height of the longitudinal limiting module 3 to obtain an effective longitudinal limiting effect of the longitudinal limiting module 3 on the ECU, the mounting base 301 can be fixedly installed on the bottom plate 1 through a fixing base 308. The first pressing head 304 on the first pull rod 302 is in pressing fit with the ECU. When the operator holds the first handle 305 on the second pull rod 303 and presses it down to rotate, the pressing block 306 pushes the first pull rod 302 to rotate downward synchronously, so as to push the first pressing head 304 to press the upper surface of the ECU, preventing the electrical connection between the ECU and the probe module 5 from loosening during the data writing process.

[0037] In this embodiment, as Figure 1As shown, the first pressing head 304 includes a fixed end and a pressing end coaxially sleeved. The fixed end and the pressing end are slidably connected along their own axial directions. The fixed end is installed at the end of the first pull rod 302, and the pressing end faces the limiting plate 201. A buffer spring 307 is coaxially sleeved on the outer periphery of the first pressing head 304, and both ends of the buffer spring 307 are abutted against the fixed end and the pressing end respectively.

[0038] When the pressing end of the first pressing head 304 touches the ECU, due to the downward pressure from the fixed end of the first pressing head 304, the first pressing head 304 contracts and the buffer spring 307 compresses to store energy. When the downward pressure at the fixed end of the first pressing head 304 disappears, the first pressing head 304 extends, the buffer spring 307 extends and resets, and releases energy, realizing the buffering during the crimping process of the ECU. The first pressing head 304 is set in a telescopic style. During the process of pressing the ECU, due to the action of the buffer spring 307, it prevents the ECU from being damaged when the pressing force is too large. And because the first pressing head 304 has a certain elastic space, it can damp the vibration of the ECU during the process of driving the ECU to move towards the probe module 5, which is beneficial to the precise docking of the ECU and the probe module 5.

[0039] As Figure 1 and Figure 4 shown, the driving module 4 includes a third pull rod 401 and a fourth pull rod 402. One end of the third pull rod 401 is hinged to the bottom plate 1 through a connecting piece, and the other end is provided with a second handle 403. One end of the fourth pull rod 402 is hinged to the middle section of the third pull rod 401, and the other end is provided with a second pressing head 404. The second pressing head 404 extends into the ECU positioning groove 203 and cooperates with the ECU. The rotation planes of the third pull rod 401 and the fourth pull rod 402 are coplanar and are arranged parallel to the direction of the slide rail 202.

[0040] When holding the second handle 403 and rotating the third pull rod 401 towards the ECU, the third pull rod 401 drives the second pressing head 404 at the end of the fourth pull rod 402 to move towards the ECU, thereby pressing the ECU tightly in the ECU positioning groove 203. When the third pull rod 401 continues to rotate, it pushes the ECU and the limiting plate 201 to slide towards the probe module 5, thereby realizing the electrical connection between the ECU and the probe module 5. Through this connection method, only one electrical connection is required. By opening the corresponding data writing channel through the selection switch 601, the data writing of multiple functional modules of the ECU can be completed.

[0041] As Figure 1As shown, a guiding groove 2031 is provided on the groove wall of the ECU positioning groove 203. The second pressing head 404 penetrates through the guiding groove 2031 and can slide along the guiding groove 2031. The guiding groove 2031 limits the second pressing head 404 and defines the telescopic path of the second pressing head 404, so that the pressure direction is centered when pressing the ECU, achieving a better pressing effect.

[0042] Based on the above embodiments, as a preferred embodiment, at least two guiding sleeves 7 are provided on the base plate 1. At least two of the guiding sleeves 7 are symmetrically distributed on both sides of the base plate 1. The guiding sleeves 7 are arranged longitudinally and are matched with the external positioning pins 8.

[0043] A plurality of guiding sleeves 7 are simultaneously inserted and matched with the positioning pins 8 on the external (such as the workbench surface) for positioning the entire data writing device, preventing the device from deflecting during operation and causing poor electrical connection. The connection mode between the guiding sleeve 7 and the positioning pin 8 is coaxial socket connection, which can be flexibly disassembled, facilitating the data writing process of multiple models of ECUs using one workbench and making full use of the space.

[0044] As Figures 1 to 4 shown, a handle 9 is fixedly provided on the base plate 1. For example, two handles 9 are symmetrically arranged on both sides of the base plate 1. The operator can lift or lower the handle 9 to take the device away or install it on the corresponding workbench surface, which increases the portability of the device.

[0045] Working principle:

[0046] For the vehicle ECU data flashing tooling in this embodiment, a probe is used to replace the traditional TYCO connector. When replacing an ECU workpiece, there is no need to plug and unplug any anti-loosening plugs; when switching the functional modules for data flashing, there is no need to plug and unplug any data cables. The switching of functional modules is all completed by the corresponding selection switches, which saves time and effort. To power off the ECU, just turn the gear of the selection switch to the off position, and there is no need to unplug the power plug of the power supply socket strip, completely eliminating potential safety hazards. A multi-channel interlock circuit is designed for reliable error prevention. Only one of the three selection switches is on, and the other two are off. And only when the gear of the selection switch is correctly selected can it be used normally. When two or three selection switches are on, the function of switching the data flashing channel cannot take effect, preventing ECU damage. More specifically, a probe module 5 matching the ECU wiring port is designed. The ECU wiring port is driven by the displacement control module to achieve electrical connection of all pins with this probe module 5 at one time. Then, by switching to the expected data flashing channel through multiple selection switches 601 on the control box 6, the data flashing of the corresponding functional module can be carried out; after the data flashing of one module is completed, close the current selection switch 601 and close the selection switch 601 corresponding to the next functional module. Due to the function of the multi-channel interlock circuit, the previous data flashing channel is closed and the new data flashing channel is opened, so as to carry out the data flashing work of the next functional module. Therefore, the solution of this embodiment only needs to connect the wires once and operate multiple selection switches 601 in sequence to achieve the data flashing work of all functional modules of the ECU, simplifying the data flashing work process, simplifying the operation difficulty, improving the work efficiency, and reducing the mistakes caused by manual connection and wire replacement, which is worthy of promotion on the production line.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle ECU data flashing tool, It is characterized in that The invention comprises a displacement control module and a data writing module arranged adjacent to the displacement control module, wherein the displacement control module comprises a transverse limit module (2), a longitudinal limit module (3) and a drive module (4) arranged on a base plate (1), wherein the transverse limit module (2) can be displaced in the transverse direction and a workstation is arranged on the transverse limit module (2), wherein the longitudinal limit module (3) is arranged above the workstation and can be extended and retracted in the longitudinal direction toward the workstation, and wherein the drive module (4) is arranged on one side of the workstation and can be extended and retracted in the transverse direction toward the workstation; and wherein the data writing module comprises a probe module (5) and a control box (6) connected by a circuit. 6), the probe module (5) is fixedly arranged on a side of the workstation away from the drive module (4), and when the drive module (4) is extended, it can drive the ECU to electrically connect with the probe of the probe module (5); the control box (6) includes a multi-way interlocking circuit, and the multi-way interlocking circuit is provided with a plurality of selection switches (601), and the plurality of selection switches (601) are respectively connected to the plurality of probes of the probe module (5) through the multi-way interlocking circuit, and the selection switch (601) is used to switch the data flashing channel, and the multi-way interlocking circuit allows only one data flashing channel to be turned on at any time.

2. According to the vehicle ECU data flashing tool described in claim 1, It is characterized in that The plurality of selection switches (601) include an ABS switch, an EBS switch and an ELC switch, and the multi-way interlocking circuit further includes relays KA1 to KA6; the normally open contact of the ABS switch, the normally closed contact of the EBS switch, the normally closed contact of the ELC switch, and the control coil of the relay KA1 are sequentially connected in series between the positive and negative poles of the power supply, the control coil of the relay KA2 is connected in parallel with the control coil of the relay KA1, the normally open contact of the relay KA1 is connected in series between the data line and the ABS data writing pin of the probe module (5), and the normally open contact of the relay KA2 is connected in series between the power supply and the power supply pin of the probe module (5); the normally open contact of the EBS switch, the normally closed contact of the ABS switch, the normally closed contact of the ELC switch, and the control coil of the relay KA3 are sequentially connected in series The control coil of the relay KA4 is connected in parallel with the control coil of the relay KA3, the normally open contact of the relay KA3 is connected in series between the data line and the EBS data writing pin of the probe module (5), and the normally open contact of the relay KA4 is connected in series between the power supply and the power supply pin of the probe module (5); the normally open contact of the ELC switch, the normally closed contact of the EBS switch, the normally closed contact of the ABS switch, and the control coil of the relay KA5 are sequentially connected in series between the positive and negative poles of the power supply, the control coil of the relay KA6 is connected in parallel with the control coil of the relay KA5, the normally open contact of the relay KA5 is connected in series between the data line and the ELC data writing pin of the probe module (5), and the normally open contact of the relay KA6 is connected in series between the power supply and the power supply pin of the probe module (5).

3. The vehicle ECU data flashing tooling according to claim 1 or 2, characterized in that, the lateral limiting module (2) includes a limiting plate (201) and two parallel slide rails (202). The two slide rails (202) are symmetrically arranged on both sides of the limiting plate (201) along the telescopic direction of the driving module (4), and the slide rails (202) are fixedly installed on the bottom plate (1). The two side edges of the limiting plate (201) are respectively slidably connected to the two slide rails (202) and can slide along the slide rails (202); an ECU positioning groove (203) is provided at the top of the limiting plate (201), and the outer shape of the ECU positioning groove (203) is adapted to the ECU; the telescopic end of the driving module (4) can extend into the ECU positioning groove (203) and abut against the ECU for cooperation.

4. The vehicle ECU data flashing tooling according to claim 3, characterized in that, a detachable limiting block (204) is further provided in the ECU positioning groove (203). The limiting block (204) is arranged parallel to the slide rail (202) and is used for limiting the ECU in the direction perpendicular to the slide rail (202).

5. The vehicle ECU data flashing tooling according to claim 3, characterized in that, the longitudinal limiting module (3) includes a mounting seat (301), a first pull rod (302) and a second pull rod (303). The mounting seat (301) is fixedly installed on the bottom plate (1). The second pull rod (303) intersects with the first pull rod (302) and is perpendicular to the slide rail (202); one end of the first pull rod (302) is hinged to the mounting seat (301), and the other end is provided with a downward first pressing head (304). The first pressing head (304) is arranged above the ECU; one end of the second pull rod (303) is hinged to the mounting seat (301), and the other end is provided with a first handle (305). A pressing block (306) is fixedly arranged on the second pull rod (303). When the second pull rod (303) rotates along the hinge point, the pressing block (306) slides with the first pull rod (302) and pushes the first pressing head (304) to move longitudinally.

6. The vehicle ECU data flashing tooling according to claim 5, characterized in that, the first pressing head (304) includes a fixed end and a pressing end sleeved coaxially. The fixed end and the pressing end are slidably connected along their own axial directions. The fixed end is installed at the end of the first pull rod (302), and the pressing end is arranged towards the limiting plate (201); a buffer spring (307) is coaxially sleeved on the outer periphery of the first pressing head (304), and both ends of the buffer spring (307) abut against the fixed end and the pressing end respectively.

7. The vehicle ECU data flashing tooling according to any one of claims 4 to 6, characterized in that, The driving module (4) includes a third pull rod (401) and a fourth pull rod (402). One end of the third pull rod (401) is hinged to the bottom plate (1) through a connecting piece, and a second handle (403) is provided at the other end thereof. One end of the fourth pull rod (402) is hinged to the middle section of the third pull rod (401), and a second pressing head (404) is provided at the other end thereof. The second pressing head (404) extends into the ECU positioning groove (203) and cooperates with the ECU. The rotation planes of the third pull rod (401) and the fourth pull rod (402) are arranged parallel to the direction of the slide rail (202).

8. The vehicle ECU data writing tooling according to claim 7, characterized in that, a guiding groove (2031) is provided on the groove wall of the ECU positioning groove (203), and the second pressing head (404) penetrates through the guiding groove (2031) and can slide along the guiding groove (2031).

9. The vehicle ECU data writing tooling according to claim 1, characterized in that, at least two guiding sleeves (7) are provided on the bottom plate (1), and the at least two guiding sleeves (7) are symmetrically distributed on both sides of the bottom plate (1). The guiding sleeves (7) are arranged longitudinally and cooperate with an external positioning pin (8).

10. The vehicle ECU data writing tooling according to claim 1, characterized in that, a handle (9) is fixedly provided on the bottom plate (1).

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