Brake fluid filling aid and method of use

Abstract

This application relates to the field of automotive manufacturing technology and discloses a brake fluid filling auxiliary device and its usage method. A power cable assembly is connected to a controller and a connector, respectively, and the power cable assembly is configured to supply power to the controller and the connector. A signal cable assembly is also connected to the controller and the connector. The controller is configured to connect to the braking system interface in the vehicle to receive a first signal from the vehicle and, based on the first signal, send a second signal to the connector via the signal cable assembly. The second signal indicates whether the vehicle meets the conditions for brake fluid filling. The connector is configured to connect to the signal interface of a brake fluid filling machine to send the second signal to the filling machine. The brake fluid filling auxiliary device and usage method provided by this application can conveniently realize signal interaction between the vehicle and the brake fluid filling machine, thereby improving the efficiency of brake fluid filling.

Description

Technical Field

[0001] This application relates to the field of automotive manufacturing technology, specifically to a brake fluid filling auxiliary device and its usage method. Background Technology

[0002] Brake fluid filling is a crucial process in the automotive assembly plant. When a vehicle is missing a component in its hydraulic braking system (such as a control chip), the vehicle or the brake fluid filling machine may not be able to determine whether the vehicle meets the requirements for brake fluid filling. This results in the inability to automatically fill the brake fluid, reducing the filling efficiency and the overall production line efficiency. Summary of the Invention

[0003] In view of this, this application provides a brake fluid filling auxiliary device and its usage method, which can conveniently realize signal interaction between the vehicle and the brake fluid filling machine, thereby improving the efficiency of brake fluid filling.

[0004] The specific technical solution adopted in this application is as follows:

[0005] This application provides a brake fluid filling auxiliary device, which includes: a power cable assembly, a signal cable assembly, a controller, and a connector;

[0006] The power cable assembly is connected to the controller and the connector respectively, and the power cable assembly is configured to supply power to the controller and the connector;

[0007] The signal line assembly is connected to the controller and the connector, respectively;

[0008] The controller is configured to connect to the braking system interface in the vehicle to receive a first signal from the vehicle and, based on the first signal, send a second signal to the connector via the signal line assembly, the second signal indicating whether the vehicle meets the conditions for adding brake fluid.

[0009] The connector is configured to connect to the signal interface of the brake fluid filler to send the second signal to the brake fluid filler.

[0010] In one implementation of this application, the second signal is a differential signal;

[0011] The signal line assembly includes a first signal line and a second signal line, which are twisted together to form a twisted pair.

[0012] In one implementation of this application, the power cable assembly is configured to connect to the battery and ignition switch in the vehicle.

[0013] In one implementation of this application, the power cable assembly includes: a constant power cable, a conditional power cable, and a grounding cable;

[0014] The controller is connected to both the constant power line and the conditional power line.

[0015] The connector is connected to the constant power supply line;

[0016] The controller and the connector are respectively connected to the grounding wire;

[0017] The constant power line is configured to be connected to the battery, and the conditional power line is configured to be connected to the ignition switch.

[0018] In one implementation of this application embodiment, the power cord assembly further includes: a first fuse, a second fuse, and a third fuse;

[0019] The first fuse is disposed between the constant power supply line and the controller, the second fuse is disposed between the conditional power supply line and the controller, and the third fuse is disposed between the constant power supply line and the connector;

[0020] The first fuse and the third fuse are welded to the constant power supply line.

[0021] The second fuse is soldered to the conditional power line.

[0022] In one implementation of this application, the power cord assembly further includes a positive power clip and a negative power clip;

[0023] The positive terminals of the constant power line, the conditional power line, and the grounding line are all welded to the positive power clamp, and the positive power clamp is configured to be connected to the positive terminal of the battery.

[0024] The negative terminals of the constant power line, the conditional power line, and the grounding line are all welded to the negative power clamp, and the negative power clamp is configured to be connected to the negative terminal of the battery.

[0025] In one implementation of this application, the brake fluid filling auxiliary device further includes: flocked tape and insulating sleeve;

[0026] The flocked tape is wrapped around the outer periphery of the power cable assembly and the signal cable assembly to wind the power cable assembly and the signal cable assembly into a pre-assembled wire harness;

[0027] The insulating sheath is fitted over the outside of the pre-assembled wire harness.

[0028] In one implementation of this application, the controller is any one of an ABS controller, an ESP controller, and an IPB controller.

[0029] In one implementation of this application, the controller and the connector are obtained from a discarded or faulty vehicle wiring harness.

[0030] This application embodiment also provides a method of using a brake fluid filling auxiliary device, the brake fluid filling auxiliary device including a power line assembly, a signal line assembly, a controller and a connector;

[0031] The positive terminal of the power cable assembly is connected to a positive power clip, and the negative terminal of the power cable assembly is connected to a negative power clip. The power cable assembly is connected to the controller and the connector, respectively. The signal cable assembly is connected to the controller and the connector, respectively.

[0032] The method of use includes:

[0033] Connect the positive power clip to the positive terminal of the battery and the negative power clip to the negative terminal of the battery.

[0034] Connect the controller to the vehicle's braking system interface and connect the connector to the signal interface of the brake fluid filler.

[0035] Brake fluid is added according to the brake fluid filling process;

[0036] The controller is configured to receive a first signal from the vehicle and send a second signal to the connector via the signal line assembly. The second signal is used to indicate whether the vehicle meets the conditions for adding brake fluid. The connector is configured to send the second signal to the brake fluid filling machine.

[0037] The beneficial effects of the technical solutions provided in this application include at least the following:

[0038] The automotive brake fluid filling auxiliary device and its usage method provided in this application embodiment are powered by a power cable assembly to ensure the normal operation of the controller and connector. The controller is connected to the vehicle's braking system interface, and the connector is connected to the signal interface of the brake fluid filler. The signal cable assembly enables signal communication between the controller and the connector, thereby realizing signal interaction between the vehicle and the brake fluid filler. Even when the braking system lacks a chip, the brake fluid filler can obtain a signal indicating whether the vehicle meets the conditions for adding brake fluid through the controller and connector in the brake fluid filling auxiliary device, thereby realizing brake fluid filling and improving the brake fluid filling efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This illustration shows a first structural schematic diagram of a brake fluid filling auxiliary device according to an embodiment of this application;

[0041] Figure 2 This illustration shows a second structural schematic diagram of a brake fluid filling auxiliary device provided in an embodiment of this application;

[0042] Figure 3 A flowchart illustrating the method of using the brake fluid filling auxiliary device provided in this application embodiment is shown.

[0043] Figure label:

[0044] 100. Power cord assembly; 101. Normal power cord; 102. Conditional power cord; 103. Grounding wire; 104. First fuse; 105. Second fuse; 106. Third fuse; 107. Positive power clip; 108. Negative power clip;

[0045] 200. Signal line assembly; 201. First signal line; 202. Second signal line;

[0046] 300. Controller;

[0047] 400. Connector.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] With the sustainable development of automotive products, automobile manufacturers face significant production pressures, necessitating improvements in production efficiency across all process stages of the vehicle assembly line. In recent years, due to the challenges of chip manufacturing, automakers sometimes struggle to procure necessary chips in a timely manner. This can lead to situations where automakers need to add brake fluid to vehicles with missing hydraulic braking system components. However, the absence of the required chip in the hydraulic braking system prevents the brake fluid filling machine from determining whether the vehicle meets the requirements for brake fluid filling, thus hindering automatic brake fluid filling efficiency and disrupting the production line's smooth operation, further reducing overall production efficiency. Furthermore, vehicles leaving the production line without brake fluid cannot brake, posing a significant safety hazard during vehicle transport. To address this, this application provides a brake fluid filling auxiliary device and method that enables signal interaction between the vehicle and the brake fluid filling machine even when the intelligent integrated braking system lacks the required chip, thereby improving brake fluid filling efficiency.

[0051] To make the technical solution and advantages of this application clearer, the following will be combined with the appendix. Figures 1 to 3 The auxiliary equipment for adding brake fluid and its usage are described in detail.

[0052] Figure 1 A schematic diagram of a brake fluid filling auxiliary device provided in an embodiment of this application is shown. Figure 1 As shown, the brake fluid filling auxiliary device includes: a power cable assembly 100, a signal cable assembly 200, a controller 300, and a connector 400; the power cable assembly 100 is connected to the controller 300 and the connector 400 respectively, and the power cable assembly 100 is configured to supply power to the controller 300 and the connector 400; the signal cable assembly 200 is connected to the controller 300 and the connector 400 respectively; the controller 300 is configured to connect to the brake system interface in the vehicle to receive a first signal from the vehicle, and based on the first signal, send a second signal to the connector 400 through the signal cable assembly 200, the second signal indicating whether the vehicle meets the conditions for adding brake fluid; the connector 400 is configured to connect to the signal interface of the brake fluid filler to send the second signal to the brake fluid filler.

[0053] In the brake fluid filling auxiliary device provided in the embodiments of this application, the controller 300 and connector 400 are powered by the power cable assembly 100 to ensure their normal operation. The controller 300 is connected to the brake system interface of the vehicle, and the connector 400 is connected to the signal interface of the brake fluid filler. The signal cable assembly 200 enables signal communication between the controller 300 and the connector 400, thereby realizing signal interaction between the vehicle and the brake fluid filler. Even if the brake system lacks a chip, the brake fluid filler can obtain a signal indicating whether the vehicle meets the conditions for adding brake fluid through the controller 300 and connector 400 in the brake fluid filling auxiliary device to realize brake fluid filling, thereby improving the brake fluid filling efficiency.

[0054] In some embodiments, when using the above-described brake fluid filling auxiliary equipment, the controller 300 and connector 400 can be connected to the vehicle and brake fluid filling machine, respectively. The vehicle sends a first signal to the controller 300. After receiving the first signal, the controller 300 generates a second signal based on the first signal and sends the second signal to the connector 400 through the signal line assembly 200, and then sends the second signal to the brake fluid filling machine. When the brake fluid filling machine determines based on the second signal that the vehicle meets the conditions for brake fluid filling, the brake fluid filling machine can then fill the brake fluid according to the brake fluid filling process flow. Thus, the brake fluid filling auxiliary equipment provided in this application embodiment solves the problem of brake fluid not being able to be filled when the brake system lacks chips, ensuring the sustainability of the vehicle production line and improving production efficiency.

[0055] It should be noted that the brake fluid filler will only perform the brake fluid filling operation when the vehicle meets the set conditions; if the set conditions are not met, the brake fluid filling operation will be suspended. The situations in which the set conditions are not met include, but are not limited to, situations in which the vacuum degree of the hydraulic braking system in the vehicle is not met, there is a leak in the hydraulic braking system, and the amount of brake fluid in the hydraulic braking system is insufficient.

[0056] In some embodiments, the first signal can be a parameter signal related to the hydraulic braking system in the vehicle, such as parameters related to leakage in the hydraulic braking system, vacuum level of the hydraulic braking system, and brake fluid filling amount. These parameter signals can be acquired by sensors in the vehicle and sent to the controller 300; the controller 300 can have data processing capabilities and can perform data processing and judgment based on the received parameter signals (first signal) to generate a control signal (second signal) indicating whether the vehicle meets the conditions for adding brake fluid.

[0057] In some embodiments, when the vehicle to be filled with brake fluid has a brake system chip, the first signal can be, for example, a control signal issued by the chip in the vehicle. This control signal is used to indicate that the vehicle meets the conditions for adding brake fluid, and the controller 300 can directly forward this control signal to the connector 400. In some embodiments, both the first and second signals can be parameter signals related to the brake system. After the controller 300 and the connector 400 forward the parameter signals to the brake fluid filling machine, the brake fluid filling machine autonomously determines whether to add brake fluid to the vehicle.

[0058] In some embodiments, the connector 400 may have data processing capabilities. After receiving a second signal (e.g., a parameter signal) sent by the controller 300, it can process the second signal and generate a control signal to indicate whether the vehicle meets the conditions for adding brake fluid, and then forward the newly generated control signal to the brake fluid filling machine.

[0059] In some embodiments, the second signal may be the same as the first signal, so that the controller 300 can be used only to forward signals from the vehicle to the connector 400. Exemplarily, the first and second signals may simply represent logic 0 or 1 to instruct the brake fluid filler to perform the corresponding brake fluid filling operation. For example, when the first and second signals are logic 0, it indicates that the vehicle does not meet the conditions for adding brake fluid, so the brake fluid filler does not perform brake fluid filling and reports an error; when the first and second signals are logic 1, it indicates that the vehicle meets the conditions for adding brake fluid, so the brake fluid filler can perform the brake fluid filling operation normally.

[0060] Optionally, the brake fluid filler can also process data using the controller 300 or connector 400. For example, the vehicle sends its various parameters to the controller 300 via the brake system interface, i.e., sends a first signal to the controller 300. The controller 300 processes the first signal using a processor to obtain a second signal. The connector 400 then directly forwards this second signal to the brake fluid filler to instruct it to perform or not perform the brake fluid filling operation. For instance, if the controller 300 determines based on the first signal that the vehicle does not meet the conditions for brake fluid filling, it instructs the brake fluid filler not to perform the filling operation via the second signal; conversely, if the controller 300 determines based on the first signal that the vehicle meets the conditions for brake fluid filling, it instructs the brake fluid filler to perform the filling operation via the second signal.

[0061] In some embodiments, the conditions for adding brake fluid can be determined by the vehicle manufacturer, and these conditions can be pre-written into a chip in the vehicle, the controller 300, or the processor of the brake fluid filling machine.

[0062] In some embodiments, the controller 300 can be connected to the brake system interface in the vehicle via a plug-in connector (e.g., a pin header). The connector 400 may be, for example, an OBDII (Second On-Board Diagnostics) diagnostic interface, which connects to the signal interface of the brake fluid filler via a plug-in connector.

[0063] In some embodiments, to ensure the security and stability of signal transmission, the second signal in the brake fluid filling auxiliary device provided in this application is a differential signal; the signal line assembly 200 connected between the controller 300 and the connector 400 can be a differential signal line. For example... Figure 1 and Figure 2 As shown, the signal line assembly 200 includes a first signal line 201 and a second signal line 202, and the first signal line 201 and the second signal line 202 are twisted together to form a twisted pair.

[0064] In some embodiments, the signal line assembly 200 is a CAN bus, wherein the first signal line 201 can be CAN-H and the second signal line 202 can be CAN-L.

[0065] It should be noted that differential transmission is a signal transmission technology. Traditional transmission methods use one signal line to transmit the signal and one ground line to ground; while differential signals require the transmission of the signal on both lines, with the two signals having the same amplitude but opposite phase. The differential signal is represented by the potential difference on the two signal lines (e.g., the first signal line 201 and the second signal line 202). For the CAN bus, the potential difference is divided into dominant level and recessive level, with the dominant level being logic 0 and the recessive level being logic 1.

[0066] In some embodiments, before performing the brake fluid filling operation, the controller 300 of the brake fluid filling auxiliary device provided in this application is connected to the vehicle's brake system interface, and the connector 400 is connected to the signal interface of the brake fluid filler. Afterwards, the vehicle sends a first signal to the controller 300 indicating whether the vehicle meets the set conditions for adding brake fluid. The first signal is of two types, indicating whether the vehicle meets the conditions for adding brake fluid or not. When the first signal indicates that the vehicle meets the conditions, the controller 300 generates a second signal based on the first signal, which is logic 1. That is, when the conditions are met, the potential difference between the first signal line 201 and the second signal line 202 is an implicit level. After receiving the second signal with logic 1, the brake fluid filler performs brake fluid filling on the vehicle. When the first signal indicates that the vehicle does not meet the conditions, the controller 300 generates a second signal based on the first signal, which is logic 0. That is, when the conditions are met, the potential difference between the first signal line 201 and the second signal line 202 is an explicit level. After receiving the second signal with logic 0, the brake fluid filler stops or pauses the brake fluid filling operation.

[0067] Optionally, the length of the first signal line 201 and the second signal line 202 can be 100cm. After the terminals are crimped onto both ends of the first signal line 201, one end is inserted into terminal 24 of the controller 300 and the other end is inserted into terminal 14 of the connector 400. After the terminals are crimped onto both ends of the second signal line 202, one end is inserted into terminal 23 of the controller 300 and the other end is inserted into terminal 6 of the connector 400.

[0068] Furthermore, to facilitate differentiation during wire harness fabrication, the first signal line 201 and the second signal line 202 can be different colors; for example, the first signal line 201 may be yellow and the second signal line may be green.

[0069] It should be noted that those skilled in the art can select and adjust the lengths of the first signal line 201 and the second signal line 202 according to their own needs.

[0070] In one implementation of this application, the power cable assembly 100 is configured to connect to the battery and ignition switch in the vehicle.

[0071] The brake fluid filling auxiliary device provided in this application embodiment has a power cable assembly 100 connected to the vehicle's battery and ignition switch.

[0072] In one implementation of the embodiments of this application, such as Figure 2As shown, the power cable assembly 100 includes: a constant power cable 101, a conditional power cable 102, and a grounding cable 103; a controller 300 is connected to the constant power cable 101 and the conditional power cable 102 respectively; a connector 400 is connected to the constant power cable 101; the controller 300 and the connector 400 are connected to the grounding cable 103 respectively; wherein the constant power cable 101 is configured to be connected to a battery, and the conditional power cable 102 is configured to be connected to an ignition switch.

[0073] See also Figure 2 In the brake fluid filling auxiliary device provided in this application embodiment, the controller 300 can be connected to the constant power line 101 and the conditional power line 102 via two power lines respectively. One end of each power line is crimped with a terminal. The power line connected to the constant power line 101 is inserted into terminal 1 of the controller 300, and the other power line connected to the conditional power line 102 is inserted into terminal 18 of the controller 300. The connector 400 can be connected to the constant power line 101 via one power line, one end of which is crimped with a terminal and inserted into terminal 16 of the connector 400. Furthermore, the controller 300 is also connected to the grounding line 103 via one power line, one end of which is crimped with a terminal and inserted into terminal 14 of the controller 300. The connector 400 is connected to the grounding line 103 via two power lines, one end of which is crimped with a terminal and inserted into terminals 4 and 5 of the connector 400 respectively.

[0074] Optionally, the cross-sectional area of ​​the constant power supply line 101 and the grounding line 103 can be 4 mm². 2 The cross-sectional area of ​​the power cord 102 can be 0.5 mm². 2 In other embodiments, those skilled in the art can select and adjust the diameters of the constant power line 101, the conditional power line 102, and the grounding line 103 according to their own needs.

[0075] Optionally, the lengths of the power lines between the constant power line 101 and the controller 300, the conditional power line 102 and the controller 300, the constant power line 101 and the connector 400, the controller 300 and the grounding wire 103, and the connector 400 and the grounding wire 103 can be 150 cm. In other embodiments, those skilled in the art can select and adjust the lengths of the power lines according to their own needs.

[0076] In some embodiments, the constant power supply line 101 in the brake fluid filling auxiliary device provided in this application is connected to the positive terminal of the battery and is referred to as "constant positive power"; the grounding line 103 is connected to the negative terminal of the battery, and it cooperates with the constant power supply line 101 to form a current loop, thereby supplying power to the controller 300 and connector 400 through the battery; the conditional power supply line 102 is integrated in the controller 300. After the controller 300 is connected to the brake system interface in the vehicle, the conditional power supply line 102 can be connected to the start signal line in the vehicle through the interface of the controller 300. For example, the start signal line in the vehicle can be line 15, which can be connected to the positive terminal of the battery via the ignition switch. When the ignition switch is in the ON (on) and ST (start) positions, line 15 provides the specified voltage. Line 15 in the vehicle is also referred to as "keyless power".

[0077] It should also be noted that the terminal numbers of the controller 300 and connector 400 in this embodiment are exemplary interpretations, and those skilled in the art can adjust the terminal numbers according to actual needs.

[0078] In one implementation of this application embodiment, in order to ensure the safe operation of the circuit, such as Figure 2 As shown, the power cord assembly 100 also includes: a first fuse 104, a second fuse 105, and a third fuse 106; the first fuse 104 is disposed between the constant power cord 101 and the controller 300, the second fuse 105 is disposed between the conditional power cord 102 and the controller 300, and the third fuse 106 is disposed between the constant power cord 101 and the connector 400; wherein, the first fuse 104 and the third fuse 106 are soldered to the constant power cord 101; and the second fuse 105 is soldered to the conditional power cord 102.

[0079] In some embodiments, the first fuse 104, the second fuse 105, and the third fuse 106 can be soldered to the power lines between the constant power line 101 and the controller 300, the power lines between the conditional power line 102 and the controller 300, and the constant power line 101 and the connector 400, respectively. In the event of abnormal current in the circuit, the aforementioned fuses can provide overload protection and prevent damage to the brake fluid filling auxiliary equipment.

[0080] Optionally, the first fuse 104 can be an F1 15A fuse, the second fuse 105 can be an F2 10A fuse, and the third fuse 106 can be an F3 10A fuse; where "F" represents the fuse, "1" represents the fuse number, "15A" indicates that the fuse's fusing current is 15A, and similarly, "10A" indicates that the fuse's fusing current is 10A. In other embodiments, those skilled in the art can select and adjust the fuse type according to their own needs.

[0081] In one implementation of this application, the power cable assembly 100 further includes a positive power clip 107 and a negative power clip 108; the positive terminals of the constant power cable 101, the conditional power cable 102, and the grounding cable 103 are all welded to the positive power clip 107, and the positive power clip 107 is configured to be connected to the positive terminal of the battery; the negative terminals of the constant power cable 101, the conditional power cable 102, and the grounding cable 103 are all welded to the negative power clip 108, and the negative power clip 108 is configured to be connected to the negative terminal of the battery.

[0082] In the brake fluid filling auxiliary device provided in this application embodiment, the positive terminals of all power lines can be soldered to the positive power clamp 107, and the negative terminals of all power lines can be soldered to the negative power clamp 108, and connected to the battery through the positive power clamp 107 and the negative power clamp 108.

[0083] In one implementation of this application, the brake fluid filling auxiliary device further includes: flocked tape and insulating sheath; the flocked tape is wrapped around the outer periphery of the power cable assembly 100 and the signal cable assembly 200 to wind the power cable assembly 100 and the signal cable assembly 200 into a pre-assembled wire harness; the insulating sheath is sleeved on the outside of the pre-assembled wire harness.

[0084] The power cable assembly 100 and signal cable assembly 200 are wrapped together with flocked tape to form a pre-assembled wire harness, which winds multiple power cables into a single component, making it easy to locate during replacement or maintenance. In addition, an insulating sleeve with a protective and fixing function is installed on the pre-assembled wire harness to protect the wire harness from mechanical damage when it is installed on or after installation, and the insulating sleeve can reduce safety hazards.

[0085] In one implementation of this application, the controller 300 is any one of an ABS controller, an ESP controller, and an IPB controller.

[0086] It's important to note that IPB (Integrated Power Brake) stands for "Intelligent Integrated Braking System." "Intelligent" refers to the fact that IPB is an electronically controlled braking system. Compared to traditional vacuum-assisted braking systems, it offers faster response and more precise control, and its intelligent electronic control allows for the expansion of its functionality. When combined with new energy vehicles, IPB can significantly enhance the efficiency of regenerative braking. "Integrated" refers to the fact that IPB integrates ESP (Electronic Stability Program), making it lighter and taking up less interior space compared to non-integrated braking systems. Furthermore, ESP includes Electronic Brake Distribution (EBD), Anti-lock Braking System (ABS), Traction Control System (TCS), and Vehicle Dynamic Control (VDC).

[0087] The IPB mentioned in the above embodiments of this application refers to a braking system integrated with ESP, ESC, or ABS. Different controllers 300 can be selected depending on the vehicle model and production standard. When the controller 300 lacks a chip, the brake fluid filling machine cannot determine whether the vehicle meets the conditions for brake fluid filling. Therefore, operators can select and adjust the type of controller 300 in the brake fluid filling auxiliary equipment according to production needs.

[0088] In one implementation of this application, the controller 300 and connector 400 are obtained from disassembled old or faulty vehicle wiring harnesses.

[0089] To ensure the smooth operation of the production line and the proper functioning of the brake fluid filling machine, in the event of a missing controller 300 or connector 400, corresponding types of controller 300 and connector 400 components are reused from discarded or faulty vehicle wiring harnesses. These components are then connected via a power cable assembly 100 and a signal cable assembly 200 to form the brake fluid filling auxiliary device. This auxiliary device has a simple structure, is easy to manufacture, meets the assembly requirements of various vehicle models, and is manufactured using locally sourced wiring harness components, ensuring the device's strength and service life.

[0090] according to Figure 3As shown in the embodiments, this application also provides a method for using the brake fluid filling auxiliary device described above. In some embodiments, the brake fluid filling auxiliary device includes a power cord assembly 100, a signal line assembly 200, a controller 300, and a connector 400; the positive terminal of the power cord assembly 100 is connected to a positive power clip 107, and the negative terminal of the power cord assembly 100 is connected to a negative power clip 108; the power cord assembly 100 is connected to the controller 300 and the connector 400 respectively; the signal line assembly 200 is connected to the controller 300 and the connector 400 respectively.

[0091] Usage instructions include:

[0092] S301. Connect the positive power clip 107 to the positive terminal of the battery and the negative power clip 108 to the negative terminal of the battery.

[0093] S302. Connect the controller 300 to the vehicle's braking system interface and connect the connector 400 to the signal interface of the brake fluid filler.

[0094] S303. Add brake fluid according to the brake fluid filling process.

[0095] The controller 300 is configured to receive a first signal from the vehicle and send a second signal to the connector 400 via the signal line assembly 200. The second signal is used to indicate whether the vehicle meets the conditions for adding brake fluid. The connector 400 is configured to send the second signal to the brake fluid filling machine.

[0096] In the absence of a chip in the vehicle's hydraulic braking system, after the brake fluid filling auxiliary equipment is connected to the vehicle and the brake fluid filling machine, the controller 300 can obtain a first signal provided by the vehicle through the braking system interface. This first signal can be a parameter signal obtained by various sensors in the vehicle, or a signal processed by other processors in the vehicle. Then, the controller 300 generates a second signal based on the first signal and sends the second signal to the connector 400 connected to the signal interface of the brake fluid filling machine. Thus, the brake fluid filling machine can obtain the second signal from the connector 400 and execute or stop the brake fluid filling process based on the second signal. Therefore, even when the braking system lacks a chip, the brake fluid filling machine can obtain a signal indicating whether the vehicle meets the conditions for brake fluid filling through the controller and connector in the brake fluid filling auxiliary equipment to realize brake fluid filling and improve the brake fluid filling efficiency.

[0097] Optionally, if the brake fluid filling process is interrupted, the brake fluid filling auxiliary equipment is removed, and the vacuum degree, leakage, and filling amount of the brake fluid filling machine of the hydraulic braking system are checked. After troubleshooting, the above steps (1) to (3) are executed again. The brake fluid filling auxiliary equipment is connected to the vehicle and the brake fluid filling machine respectively, and then the brake fluid is filled according to the brake fluid filling process.

[0098] The brake fluid filling auxiliary equipment and its usage method provided in this application embodiment are self-made, reliable in installation, convenient in use, fast in assembly, and durable. In practical applications, they can save at least 60 seconds of labor time per vehicle, which not only solves the problem of difficulty in filling brake fluid when parts are missing, but also improves production efficiency.

[0099] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0100] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0101] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0102] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A brake fluid filling auxiliary device, characterized in that, The brake fluid filling auxiliary equipment includes: a power cable assembly (100), a signal cable assembly (200), a controller (300), and a connector (400); The power cord assembly (100) is connected to the controller (300) and the connector (400) respectively, and the power cord assembly (100) is configured to supply power to the controller (300) and the connector (400); The signal line assembly (200) is connected to the controller (300) and the connector (400) respectively; The controller (300) is configured to connect to the braking system interface in the vehicle to receive a first signal from the vehicle and, based on the first signal, send a second signal to the connector (400) through the signal line assembly (200), the second signal indicating whether the vehicle meets the conditions for adding brake fluid; The connector (400) is configured to connect to the signal interface of the brake fluid filler to send the second signal to the brake fluid filler.

2. The brake fluid filling auxiliary device according to claim 1, characterized in that, The second signal is a differential signal; The signal line assembly (200) includes a first signal line (201) and a second signal line (202), wherein the first signal line (201) and the second signal line (202) are twisted together to form a twisted pair.

3. The brake fluid filling auxiliary device according to claim 1, characterized in that, The power cable assembly (100) is configured to connect to the battery and ignition switch in the vehicle.

4. The brake fluid filling auxiliary device according to claim 3, characterized in that, The power cord assembly (100) includes: a constant power cord (101), a conditional power cord (102), and a grounding cord (103); The controller (300) is connected to the constant power line (101) and the conditional power line (102) respectively; The connector (400) is connected to the constant power supply line (101); The controller (300) and the connector (400) are respectively connected to the grounding wire (103); The constant power line (101) is configured to be connected to the battery, and the conditional power line (102) is configured to be connected to the ignition switch.

5. The brake fluid filling auxiliary device according to claim 4, characterized in that, The power cord assembly (100) further includes: a first fuse (104), a second fuse (105), and a third fuse (106); The first fuse (104) is disposed between the constant power line (101) and the controller (300), the second fuse (105) is disposed between the conditional power line (102) and the controller (300), and the third fuse (106) is disposed between the constant power line (101) and the connector (400). The first fuse (104) and the third fuse (106) are welded to the constant power supply line (101); The second fuse (105) is soldered to the conditional power line (102).

6. The brake fluid filling auxiliary device according to claim 4, characterized in that, The power cord assembly (100) also includes a positive power clip (107) and a negative power clip (108); The positive terminals of the constant power line (101), the conditional power line (102), and the grounding line (103) are all welded to the positive power clamp (107), and the positive power clamp (107) is configured to be connected to the positive terminal of the battery. The negative terminals of the constant power line (101), the conditional power line (102), and the grounding line (103) are all welded to the negative power clamp (108), and the negative power clamp (108) is configured to be connected to the negative terminal of the battery.

7. The brake fluid filling auxiliary device according to any one of claims 1 to 6, characterized in that, The brake fluid filling auxiliary equipment also includes: flocked tape and insulating sleeve; The flocking tape is wrapped around the outer periphery of the power cord assembly (100) and the signal line assembly (200) to wind the power cord assembly (100) and the signal line assembly (200) into a pre-assembled wire harness; The insulating sheath is fitted over the outside of the pre-assembled wire harness.

8. The brake fluid filling auxiliary device according to any one of claims 1 to 6, characterized in that, The controller (300) is any one of the following: ABS controller, ESP controller, and IPB controller.

9. The brake fluid filling auxiliary device according to any one of claims 1 to 6, characterized in that, The controller (300) and the connector (400) are obtained by disassembling old or faulty vehicle wiring harnesses.

10. A method of using a brake fluid filling auxiliary device, characterized in that, The brake fluid filling auxiliary device includes a power cable assembly (100), a signal cable assembly (200), a controller (300), and a connector (400). The positive terminal of the power cable assembly (100) is connected to a positive power clip (107), and the negative terminal of the power cable assembly (100) is connected to a negative power clip (108). The power cable assembly (100) is connected to the controller (300) and the connector (400) respectively. The signal cable assembly (200) is connected to the controller (300) and the connector (400) respectively. The method of use includes: Connect the positive power clip (107) to the positive terminal of the battery and the negative power clip (108) to the negative terminal of the battery. Connect the controller (300) to the vehicle's braking system interface and connect the connector (400) to the signal interface of the brake fluid filler. Brake fluid is added according to the brake fluid filling process; The controller (300) is configured to receive a first signal from the vehicle and send a second signal to the connector (400) via the signal line assembly (200), the second signal indicating whether the vehicle meets the conditions for adding brake fluid; the connector (400) is configured to send the second signal to the brake fluid filling machine.

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