Depth gap testing tool for brake pedal

Abstract

The utility model discloses a brake pedal depth gap testing tool, which comprises a butt joint plug and a digital display voltmeter. The butt joint plug is connected to the digital display voltmeter through a first wire harness, the butt joint plug is used for being inserted into a wire harness interface of a vehicle brake pedal depth sensor, the butt joint plug obtains an electric signal of a brake pedal stroke, and the digital display voltmeter is used for displaying a voltage value corresponding to the electric signal. The device is simple in structure, convenient to use, simple in structure, convenient to operate and low in testing cost compared with a traditional testing mode, the brake pedal stroke gap can be rapidly and effectively tested, and the efficiency and accuracy of gap adjustment detection of the kinetic energy feedback brake system of the electric vehicle are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake pedal test equipment technical field, concretely is a brake pedal depth gap test tool. BACKGROUND

[0002] Brake pedal, commonly known as "foot brake", is one of the five major operating devices of the automobile. It uses foot pedal force to increase friction through hydraulic pressure, air pressure, etc. to slow down or stop the vehicle. Specifically, when the driver steps on the brake pedal, the piston of the brake master cylinder will move, and then the brake fluid will transfer energy to the brake calipers of the wheels, making the brake pads contact the wheels and stop the wheels from rotating through friction, thereby achieving the deceleration or stopping of the vehicle. In the brake system of the automobile, the brake pedal is a key component, and its design, material and performance are directly related to the safety of the automobile. Therefore, during daily driving, the driver should always pay attention to the operation feeling of the brake pedal, and once any abnormality is found, such as hard or soft pedal, sinking, etc., the brake system should be checked and repaired in time to ensure the normal operation of the brake system. In general, the brake pedal is an indispensable part of automobile driving, which ensures the safety and stability during driving.

[0003] Pure electric vehicle, when the driver steps on the brake, the electric vehicle drive motor can feed back electric energy to the power battery, and the brake pedal depth gap size adjustment directly affects the size of the electric energy feedback, and the size of the electric energy feedback also directly affects the vehicle braking performance.

[0004] In order to ensure the normal operation of the brake system, it is necessary to measure the brake pedal depth gap, but at present, the brake pedal gap test relies on the host computer or VDS2000 for measurement. Since the team does not have a host computer and the VDS2000 system is updated frequently, it is difficult for the team to conveniently and quickly test the brake pedal gap value, resulting in inaccurate brake pedal gap value and small vehicle electric energy feedback. Therefore, we need to propose a brake pedal depth gap test tool. Utility model content

[0005] The utility model aims at providing a brake pedal depth gap test tool, the device simple structure, convenient to use, compared with traditional test mode, simple structure, convenient operation, low test cost, can fast and effectively test the brake pedal depth stroke gap, improve the efficiency and accuracy of electric automobile kinetic energy feedback brake system gap adjustment detection, to solve the problem raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A brake pedal depth gap test tool, comprising:

[0008] The utility model discloses a docking plug and digital voltmeter, which are connected through a first wire harness.

[0009] The docking plug is connected to the digital voltmeter through the first wire harness, and is used for being inserted into a wire harness interface of a vehicle brake pedal depth sensor.

[0010] Preferably, a signal amplifier is further arranged between the docking plug and the digital voltmeter, one end of the signal amplifier is connected to the docking plug through a wire, and the other end of the signal amplifier is connected to the digital voltmeter through a wire.

[0011] Preferably, the signal amplifier is used for amplifying the electrical signal of the brake pedal stroke, so that the digital voltmeter can accurately and stably display the voltage value.

[0012] Preferably, a control panel is further connected to the digital voltmeter, and the control panel is electrically connected to the digital voltmeter through a second wire harness.

[0013] Preferably, the control panel is provided with a display screen and control buttons, and a control circuit board is arranged in the control panel, and a microprocessor and a data storage module are integrated on the control circuit board.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The docking plug is connected to the wire harness interface of the vehicle brake pedal depth sensor, and the docking plug is connected to the digital voltmeter through the first wire, so that the device has the advantages of simple structure, convenient use, simple structure, convenient operation, low test cost, fast and effective test of the brake pedal stroke gap, and improved efficiency and accuracy of the gap adjustment detection of the electric vehicle kinetic energy feedback braking system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic view.

[0017] In the drawing: 1, docking plug; 2, digital voltmeter; 3, signal amplifier; 4, control panel; 5, display screen; 6, control button; 7, first wire harness; 8, second wire harness. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] Please refer to Figure 1 The utility model provides a technical scheme:

[0020] A brake pedal depth gap test tool, comprising:

[0021] The docking plug 1 is connected to the digital voltmeter 2 through the first wire harness 7, the docking plug 1 is used for being inserted into the vehicle brake pedal depth sensor wire harness interface, the docking plug 1 obtains the electric signal corresponding to the brake pedal stroke, and the digital voltmeter 2 is used for displaying the voltage value corresponding to the electric signal.

[0022] The utility model discloses a docking plug 1 and digital voltmeter 2 are set up, docking plug 1 connects vehicle brake pedal depth sensor wire harness interface, docking plug 1 is connected to digital voltmeter 2 through the first wire, in actual use, first clean up the plug of docking plug connecting wire one end, ensure that the plug is not damaged and can be in good contact with the electric vehicle brake pedal depth sensor wire harness interface, check digital voltmeter 2, ensure that it is in normal working condition, and the range setting is reasonable.

[0023] When testing, the plug of the docking plug connecting wire is inserted into the brake pedal depth sensor wire harness interface of the electric vehicle, the tester steps on or presses the brake pedal, and the tester steps on the brake pedal from the fully released state step by step. In the brake pedal stepping process, the voltage value change displayed by the digital voltmeter 2 is observed, the stroke gap of the brake pedal is judged according to the corresponding relationship table (see the following table) of the brake pedal stroke and the voltage value determined in advance, the plug is inserted into the brake pedal depth sensor wire harness interface of the electric vehicle, the electric signal corresponding to the brake pedal stroke can be obtained, and the digital voltmeter 2 is used for displaying the voltage value corresponding to the electric signal. Since the brake pedal stroke and the voltage value have a corresponding relationship, the voltage value on the digital voltmeter 2 can be read to judge the stroke gap of the brake pedal.

[0024] After testing, the plug is carefully pulled out of the brake pedal depth sensor wire harness interface, the docking plug 1 connecting wire and the digital voltmeter 2 are arranged, and are properly stored for next use.

[0025] In general, the device is simple in structure and convenient to use. Compared with the traditional test method, the device is simple in structure, convenient to operate, and low in test cost, and can quickly and effectively test the brake pedal stroke gap, thereby improving the efficiency and accuracy of the gap adjustment detection of the electric vehicle kinetic energy feedback braking system.

[0026] Further, please refer to Figure 1 :

[0027] A signal amplifier 3 is further arranged between the mating plug 1 and the digital voltmeter 2. One end of the signal amplifier 3 is connected to the mating plug 1 through a wire, and the other end of the signal amplifier 3 is connected to the digital voltmeter 2 through a wire. The signal amplifier 3 is used to amplify the electrical signal of the brake pedal stroke, so as to ensure that the digital voltmeter 2 can accurately and stably display the voltage value.

[0028] Since the electrical signal obtained from the brake pedal depth sensor wire harness interface can be relatively weak, the signal amplifier 3 can amplify the electrical signal, so as to ensure that the digital voltmeter 2 can accurately and stably display the voltage value. This helps to improve the measurement accuracy and reduce errors caused by weak signals.

[0029] Further, please refer to Figure 1 :

[0030] The control panel 4 is further connected to the digital voltmeter 2. The control panel 4 is electrically connected to the digital voltmeter 2 through the second wire harness 8. The control panel 4 is provided with a display screen 5 and control buttons 6. The control panel 4 is internally provided with a control circuit board, and the control circuit board is integrated with a microprocessor and a data storage module.

[0031] During the test process, the data storage module can store the voltage value displayed by the digital voltmeter 2 and the corresponding time stamp in real time. This is very useful for subsequent data analysis, such as viewing the stroke state of the brake pedal at different time points, analyzing the performance change trend of the braking system, etc.

[0032] In addition to the digital voltmeter 2 being able to display the instantaneous voltage value, the display screen 5 can display the historical voltage value data stored in the data storage module in the form of a chart or a list. This allows the tester to more intuitively view the change of the brake pedal stroke gap, and can perform data query, filtering, etc. by operating the menu on the display screen 5.

[0033] The control mode of the control panel 4 is controlled by the PLC controller built-in the control panel 4. The control circuit of the PLC controller can be realized by simple programming by those skilled in the art, which is common knowledge in the art. Moreover, the present application file is mainly used to protect the mechanical device, so the control mode and circuit connection will not be explained in detail.

[0034] The following table is a brake pedal depth gap adjustment inspection size table, and the correspondence between the brake pedal stroke and the voltage value is obtained by comparing the BYD K8 and C8A models through multiple tests and calibration, which is used for comparison and judgment of the stroke gap of the brake pedal when the device is used.

[0035]

[0036]

[0037] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A brake pedal depth gap test tool characterized by, Include: The docking plug (1) and digital voltmeter (2); The docking plug (1) is connected to the digital voltmeter (2) through the first wire harness (7), the docking plug (1) is used for inserting into the vehicle brake pedal depth sensor wire harness interface, the docking plug (1) obtains the electrical signal corresponding to the brake pedal stroke, and the digital voltmeter (2) is used for displaying the voltage value corresponding to the electrical signal.

2. A brake pedal dead travel test tool as defined in claim 1, wherein: The docking plug (1) and digital voltmeter (2) are also provided with a signal amplifier (3), one end of the signal amplifier (3) is connected to the docking plug (1) through a wire, and the other end of the signal amplifier (3) is connected to the digital voltmeter (2) through a wire.

3. A brake pedal dead travel test tool as defined in claim 2 wherein: The signal amplifier (3) is used for amplifying the electrical signal of the brake pedal stroke, so that the digital voltmeter (2) can accurately and stably display the voltage value.

4. A brake pedal dead travel test tool as defined in claim 1, wherein: The digital voltmeter (2) is also connected with a control panel (4), and the control panel (4) is electrically connected with the digital voltmeter (2) through a second wire harness (8).

5. A brake pedal dead travel test tool as defined in claim 4 wherein: The control panel (4) is provided with a display screen (5) and a control button (6), and a control circuit board is arranged in the control panel (4), and a microprocessor and a data storage module are integrated on the control circuit board.

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