A method, device and system for detecting automobile clutch handling performance

Abstract

The present invention relates to a method for detecting the clutch handling performance of an automobile, which comprises the following steps: using a first displacement sensor to measure the displacement of a vehicle clutch pedal, using a second displacement sensor to measure the displacement of a whole vehicle, and using a third displacement sensor to measure the displacement of a clutch release rocker arm; using a data analysis computer to draw a vehicle starting engagement point curve according to the displacement of the vehicle clutch pedal and the displacement of the whole vehicle, and to draw a control system efficiency curve according to the displacement of the vehicle clutch pedal and the displacement of the clutch release rocker arm. Since the first displacement sensor, the second displacement sensor and the third displacement sensor can be used to measure parameters such as the pedal stroke, the wheel cylinder stroke, and the starting engagement point when the whole vehicle is running, and the collected information is transmitted to the data analysis computer through a signal line, the vehicle starting engagement point curve and the control system efficiency curve can be calculated and drawn for analysis, thereby reducing measurement errors and safety hazards.

Description

Technical Field

[0001] The present invention relates to the field of automobile clutch control system performance detection, and in particular to an automobile clutch control performance detection method, device and system. Background Art

[0002] There is no detection device in the current equipment that can measure parameters such as pedal stroke, clutch slave cylinder stroke, starting engagement point, etc. while the whole vehicle is running. Technicians use a dynamometer to measure the pedal force, and then use a tape measure to measure the pedal stroke and clutch slave cylinder stroke. At the same time, they judge the engagement point position based on whether the vehicle is moving, and the clutch slave cylinder stroke cannot be measured during the operation of the whole vehicle.

[0003] However, this measurement method can only measure the handling performance of the clutch pedal system when the vehicle is stationary. Parameters such as pedal stroke and engagement point need to be measured multiple times. At the same time, the measurement error is large and the operation is complicated. There is a safety hazard of vehicle collision when measuring the engagement point. Summary of the invention

[0004] The embodiments of the present invention provide a method, device and system for detecting the handling performance of a vehicle clutch, so as to solve the problem that the related art can only measure the handling performance of the clutch pedal system when the vehicle is stationary, requires multiple measurements, has large measurement errors, is complex to operate, and has potential safety hazards.

[0005] In a first aspect, a method for detecting the clutch handling performance of an automobile is provided, which comprises the following steps: using a first displacement sensor to measure the displacement of a clutch pedal of a vehicle, using a second displacement sensor to measure the displacement of the entire vehicle, and using a third displacement sensor to measure the displacement of a clutch release rocker arm; using a data analysis computer to draw a vehicle starting engagement point curve according to the displacement of the clutch pedal of the vehicle and the displacement of the entire vehicle, and to draw a handling system efficiency curve according to the displacement of the clutch pedal of the vehicle and the displacement of the clutch release rocker arm.

[0006] In some embodiments, the detection method further includes: using a pressure sensor to measure the pedal force of the vehicle clutch pedal; using the data analysis computer to draw a force-stroke relationship curve of the vehicle clutch pedal based on the displacement and pedal force of the vehicle clutch pedal.

[0007] In a second aspect, a device for the above-mentioned automobile clutch handling performance detection method is provided, which includes: a first displacement sensor, which is used to be fixed inside the vehicle, and the first displacement sensor is used to measure the displacement of the vehicle clutch pedal; a second displacement sensor, which is used to be fixed outside the vehicle body, and the second displacement sensor is used to measure the displacement of the entire vehicle; a third displacement sensor, which is used to be fixed on the gearbox housing, and the third displacement sensor is used to measure the displacement of the clutch release rocker arm; a data analysis computer, whose signals are connected to the first displacement sensor, the second displacement sensor and the third displacement sensor, and the data analysis computer is used to draw a vehicle starting engagement point curve according to the displacement of the vehicle clutch pedal and the displacement of the entire vehicle, and to draw a handling system efficiency curve according to the displacement of the vehicle clutch pedal and the displacement of the clutch release rocker arm.

[0008] In some embodiments, the vehicle clutch handling performance detection device also includes a pressure sensor, which is used to be fixed on the vehicle clutch pedal. The pressure sensor is electrically connected to the data analysis computer, and the data analysis computer is used to draw a force-stroke relationship curve of the vehicle clutch pedal according to the displacement and pedal force of the vehicle clutch pedal.

[0009] In some embodiments, the first displacement sensor is a pull rod type displacement sensor, and the pull rod of the first displacement sensor is used to connect to the vehicle clutch pedal.

[0010] In some embodiments, the first displacement sensor is used to be fixed to the steering wheel of the car through a clamp ring, and the pull rod is connected to the pull ring of the pressure sensor through a hook.

[0011] In some embodiments, the second displacement sensor is attached to the outer side of the vehicle door via a magnet.

[0012] In some embodiments, the second displacement sensor and the third displacement sensor are both laser displacement sensors.

[0013] In a second aspect, a system for the above-mentioned automobile clutch handling performance detection method is provided, which includes: a first processing module, which is used to draw a vehicle starting connection point curve based on data measured by the first displacement sensor and the second displacement sensor; a second processing module, which is used to draw a handling system efficiency curve based on data measured by the first displacement sensor and the third displacement sensor.

[0014] In some embodiments, the detection system further includes a third processing module, and the third processing module is used to draw a vehicle clutch pedal force and stroke relationship curve based on data measured by the pressure sensor and the first displacement sensor.

[0015] The beneficial effects brought about by the technical solution provided by the present invention include:

[0016] The embodiment of the present invention provides a method, device and system for detecting the clutch handling performance of an automobile. By using a first displacement sensor, a second displacement sensor and a third displacement sensor, parameters such as a pedal stroke, a slave cylinder stroke and a starting engagement point can be measured together when the whole vehicle is running, and the collected information can be transmitted to a data analysis computer through a signal line, so that a vehicle starting engagement point curve and a control system efficiency curve can be calculated and drawn for analysis, thereby reducing measurement errors, simplifying the operation process, reducing safety hazards, and realizing the dynamic clutch performance detection of the whole vehicle. The clutch engagement point of the whole vehicle can be conveniently and safely measured, and the mechanical efficiency of the clutch control system can be output at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A flow chart of a method for detecting the clutch handling performance of an automobile provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the assembly of a vehicle clutch handling performance detection device provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of a vehicle clutch handling performance detection system provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a measurement result curve provided by an embodiment of the present invention.

[0022] Numbers in the figure:

[0023] 1. Car steering wheel; 2. First displacement sensor; 3. Pull rod; 4. Vehicle clutch pedal; 5. Pressure sensor; 6. Second displacement sensor; 7. Third displacement sensor; 8. Transmission housing; 9. Clutch release rocker arm; 10. Clutch slave cylinder; 11. Clutch; 12. Data analysis computer; 13. Force and stroke relationship curve; 14. Vehicle starting point curve; 15. Control system efficiency curve. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The embodiments of the present invention provide a method, device and system for detecting the handling performance of a vehicle clutch, which can solve the problems in the related art that only the handling performance of the clutch pedal system can be measured when the vehicle is stationary, multiple measurements are required, the measurement error is large, the operation is complicated, and there are safety hazards.

[0026] See also Figure 1 and Figure 2 As shown, a method for detecting the clutch handling performance of an automobile provided by an embodiment of the present invention may include the following steps: using a first displacement sensor 2 to measure the displacement of a vehicle clutch pedal 4, using a second displacement sensor 6 to measure the displacement of the entire vehicle, and using a third displacement sensor 7 to measure the displacement of a clutch release rocker arm 9; using a data analysis computer 12 to draw a vehicle starting engagement point curve 14 according to the displacement of the vehicle clutch pedal 4 and the displacement of the entire vehicle, and to draw a handling system efficiency curve 15 according to the displacement of the vehicle clutch pedal 4 and the displacement of the clutch release rocker arm 9.

[0027] In this embodiment, when the whole vehicle is running, the displacement of the vehicle clutch pedal 4 is measured by using the first displacement sensor 2, the displacement of the whole vehicle is measured by using the second displacement sensor, and the displacement of the clutch release rocker arm 9 is measured by using the third displacement sensor 7. The ratio of the measured displacement of the clutch release rocker arm 9 to the displacement of the vehicle clutch pedal 4 is the efficiency of the clutch control system. The control system efficiency curve 15 can be drawn according to the measurement data. The stroke of the vehicle clutch pedal 4 recorded when the whole vehicle moves is the clutch engagement point when the whole vehicle starts. The vehicle starting engagement point curve 14 can be drawn according to the measurement data. Through the above method, the pedal stroke, the slave cylinder stroke, the starting engagement point and other parameters can be measured together when the whole vehicle is running, and the collected information can be transmitted to the data analysis computer 12 through the signal line, so that the vehicle starting engagement point curve 14 and the control system efficiency curve 15 can be calculated and drawn for analysis. Detection when the whole vehicle is running reduces measurement errors and reduces the safety hazards of vehicle leakage. Detecting multiple data at one time simplifies the operation process.

[0028] See also Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the detection method may further include: using the pressure sensor 5 to measure the pedal force of the vehicle clutch pedal 4; using the data analysis computer 12 to draw a force-stroke relationship curve 13 of the vehicle clutch pedal 4 according to the displacement and pedal force of the vehicle clutch pedal 4. In this embodiment, when the whole vehicle is running, the pedal force of the vehicle clutch pedal 4 is measured by using the pressure sensor 5, and the travel data of the vehicle clutch pedal 4 collected by the first displacement sensor 2 and the force data of the vehicle clutch pedal 4 collected by the pressure sensor 5 are processed by the data analysis computer 12 to draw a force-stroke relationship curve 13 of the vehicle clutch pedal 4. Through the above method, the pedal stroke, the wheel cylinder stroke, the starting engagement point and other parameters can be measured together when the whole vehicle is running, and the collected information can be transmitted to the data analysis computer 12 through the signal line, so that the vehicle starting engagement point curve 14, the control system efficiency curve 15 and the force-stroke relationship curve 13 can be calculated and drawn for analysis. Detection when the whole vehicle is running reduces measurement errors and reduces the safety hazards of vehicle leakage. Detecting multiple data at one time simplifies the operation process.

[0029] See also Figure 2 and Figure 4 As shown, an apparatus for the above-mentioned automobile clutch handling performance detection method provided by an embodiment of the present invention may include: a first displacement sensor 2, which is used to be fixed inside the vehicle, and the first displacement sensor 2 is used to measure the displacement of the vehicle clutch pedal 4; a second displacement sensor 6, which is used to be fixed outside the vehicle body, and the second displacement sensor 6 is used to measure the displacement of the entire vehicle; a third displacement sensor 7, which is used to be fixed on the gearbox housing 8, and the third displacement sensor 7 is used to measure the displacement of the clutch release rocker arm 9; a data analysis computer 12, whose signals are connected to the first displacement sensor 2, the second displacement sensor 6 and the third displacement sensor 7, and the data analysis computer 12 is used to draw a vehicle starting engagement point curve 14 according to the displacement of the vehicle clutch pedal 4 and the displacement of the entire vehicle, and draw a handling system efficiency curve 15 according to the displacement of the vehicle clutch pedal 4 and the displacement of the clutch release rocker arm 9.

[0030] In this embodiment, when the whole vehicle is running, the displacement of the vehicle clutch pedal 4 is measured by using the first displacement sensor 2, the displacement of the whole vehicle is measured by using the second displacement sensor, and the displacement of the clutch release rocker arm 9 is measured by using the third displacement sensor 7. The ratio of the measured displacement of the clutch release rocker arm 9 to the displacement of the vehicle clutch pedal 4 is the efficiency of the clutch control system. The control system efficiency curve 15 can be drawn according to the measurement data. The stroke of the vehicle clutch pedal 4 recorded when the whole vehicle moves is the clutch engagement point when the whole vehicle starts. The vehicle starting engagement point curve 14 can be drawn according to the measurement data. Through the above method, the pedal stroke, the slave cylinder stroke, the starting engagement point and other parameters can be measured together when the whole vehicle is running, and the collected information can be transmitted to the data analysis computer 12 through the signal line, so that the vehicle starting engagement point curve 14 and the control system efficiency curve 15 can be calculated and drawn for analysis. Detection when the whole vehicle is running reduces measurement errors and reduces the safety hazards of vehicle leakage. Detecting multiple data at one time simplifies the operation process.

[0031] See also Figure 2 As shown, in some embodiments, the automobile clutch handling performance detection device also includes a pressure sensor 5, and the pressure sensor 5 is used to be fixed on the vehicle clutch pedal 4. The pressure sensor 5 is electrically connected to the data analysis computer 12, and the data analysis computer 12 is used to draw a force-stroke relationship curve 13 of the vehicle clutch pedal 4 according to the displacement and pedal force of the vehicle clutch pedal 4. In this embodiment, when the whole vehicle is running, the pedal force of the vehicle clutch pedal 4 is measured by using the pressure sensor 5, and the stroke data of the vehicle clutch pedal 4 collected by the first displacement sensor 2 and the force data of the vehicle clutch pedal 4 collected by the pressure sensor 5 are processed by the data analysis computer 12, and the force-stroke relationship curve 13 of the vehicle clutch pedal 4 can be drawn. The detection when the whole vehicle is running reduces the measurement error and reduces the safety hazard of vehicle jamming. The detection of multiple data at one time simplifies the operation process.

[0032] See also Figure 2 As shown, in some optional embodiments, the first displacement sensor 2 adopts a pull rod type displacement sensor, and the pull rod 3 of the first displacement sensor 2 is used to connect the vehicle clutch pedal 4. In this embodiment, the working principle of the pull rod type displacement sensor is to convert the linear mechanical displacement into an electrical signal with a linear or arbitrary function relationship through a potentiometer element, which is more in line with the movement law of the vehicle clutch pedal 4, making the measurement result more accurate. In other embodiments, other displacement sensors such as a pull rope displacement sensor, an angle displacement sensor, a magnetostrictive displacement sensor, and a laser displacement sensor can also be used.

[0033] See also Figure 2As shown, in some embodiments, the first displacement sensor 2 is used to be fixed to the car steering wheel 1 by a snap ring, and the pull rod 3 is connected to the pull ring of the pressure sensor 5 by a hook. In this embodiment, by fixing the first displacement sensor 2 on the car steering wheel 1, the car steering wheel 1 is located above the vehicle clutch pedal 4, which is more convenient when measuring the displacement of the vehicle clutch pedal 4. The first displacement sensor 2 is fixed to the car steering wheel 1 by a snap ring, and the pull rod 3 is connected to the pull ring of the pressure sensor 5 by a hook, so that installation and removal are convenient and quick.

[0034] See also Figure 2 As shown, in some embodiments, the second displacement sensor 6 is adsorbed on the outside of the vehicle door by a magnet. In this embodiment, by adsorbing the second displacement sensor 6 on the outside of the vehicle door by a magnet, the second displacement sensor 6 can sense the signal at the moment the vehicle starts to move after starting, and the measurement result is more accurate. The stroke of the vehicle clutch pedal 4 recorded when the vehicle moves is the clutch engagement point when the whole vehicle starts, and the vehicle starting engagement point curve 14 can be drawn based on the measurement data.

[0035] See also Figure 2 As shown, in some embodiments, the second displacement sensor 6 and the third displacement sensor 7 both adopt laser displacement sensors. In this embodiment, the laser displacement sensor is a sensor that uses laser technology for measurement, and is composed of a laser, a laser detector and a measurement circuit. As a new type of measuring equipment, the laser displacement sensor can accurately measure the position, displacement and other changes of the object being measured without contact.

[0036] During installation, the pressure sensor 5 is fixed on the vehicle clutch pedal 4, the first displacement sensor 2 is connected to the car steering wheel 1 by a fixing part through a clamping ring, the pull rod 3 is connected to the side pull ring of the pressure sensor 5 by a hook, the second displacement sensor 6 is adsorbed on the outside of the vehicle door by a magnet and aimed at the ground, the third displacement sensor 7 is fixed on the gearbox housing 8 and aimed at the force point of the clutch release rocker arm 9, and the four sensors transmit the collected information to the data analysis computer 12 through signal lines.

[0037] During the test, a pedal force F is applied to the vehicle clutch pedal 4, and the vehicle clutch pedal 4 rotates around the fixed axis, and the clutch separation rocker arm 9 is pushed to produce axial movement through the clutch slave cylinder 10, and the clutch is separated; when the clutch pedal force F is gradually reduced to 0, the clutch 11 pushes the clutch separation rocker arm 9 to produce axial movement, and the clutch slave cylinder 10 pushes the vehicle clutch pedal 4 to rotate around the fixed axis to the initial position. During the process, the whole vehicle is displaced due to the clutch engagement, thereby realizing the dynamic clutch performance test of the whole vehicle. The device can measure and record the vehicle clutch pedal force and stroke, and can conveniently and safely measure the clutch engagement point of the whole vehicle, and can output the mechanical efficiency of the clutch control system at the same time.

[0038] See also Figure 3 and Figure 4 As shown, a system for the above-mentioned automobile clutch handling performance detection method may include: a first processing module, which is used to draw a vehicle starting point curve 14 according to the data measured by the first displacement sensor 2 and the second displacement sensor 6; a second processing module, which is used to draw a handling system efficiency curve 15 according to the data measured by the first displacement sensor 2 and the third displacement sensor 7. In this embodiment, the first processing module and the second processing module are located inside the data analysis computer 12, the first processing module is used to process the data of the first displacement sensor 2 and the second displacement sensor 6, and the second processing module is used to process the data of the first displacement sensor 2 and the third displacement sensor 7. By using the first processing module to draw the vehicle starting point curve 14 according to the data measured by the first displacement sensor 2 and the second displacement sensor 6, and using the second processing module to draw the control system efficiency curve 15 according to the data measured by the first displacement sensor 2 and the third displacement sensor 7, the pedal stroke, the cylinder stroke, the starting point and other parameters can be measured together when the whole vehicle is running, and the collected information can be transmitted to the data analysis computer 12 through the signal line, so that the vehicle starting point curve 14 and the control system efficiency curve 15 can be calculated and drawn for analysis. The detection when the whole vehicle is running reduces the measurement error and the safety hazard of vehicle leakage. The detection of multiple data at one time simplifies the operation process.

[0039] See also Figure 3 As shown, in some embodiments, the detection system may further include a third processing module, and the third processing module is used to draw a vehicle clutch pedal 4 force and stroke relationship curve 13 based on the data measured by the pressure sensor 5 and the first displacement sensor 2. In this embodiment, the third processing module is located in the data analysis computer 12, and the first processing module, the second processing module and the third processing module are electrically connected. The third processing module is used to process the data of the pressure sensor 5 and the first displacement sensor 2. When the whole vehicle is running, the pedal stroke, the cylinder stroke, the starting engagement point and other parameters can be measured together, and the collected information can be transmitted to the data analysis computer 12 through a signal line, so that the vehicle starting engagement point curve 14, the control system efficiency curve 15 and the force and stroke relationship curve 13 can be calculated and drawn for analysis. Detection when the whole vehicle is running reduces measurement errors and reduces the safety hazards of vehicle leakage. Detecting multiple data at one time simplifies the operation process.

[0040] The principles of a method, device and system for detecting the clutch handling performance of an automobile provided by an embodiment of the present invention are as follows:

[0041] The pressure sensor 5 is fixed on the vehicle clutch pedal 4, the first displacement sensor 2 is connected to the car steering wheel 1 by a fixing part through a clamp ring, the pull rod 3 is connected to the side pull ring of the pressure sensor 5 by a hook, the second displacement sensor 6 is adsorbed on the outside of the vehicle door by a magnet and is aimed at the ground, the third displacement sensor 7 is fixed on the gearbox housing 8 and is aimed at the force point of the clutch release rocker arm 9, and the four sensors transmit the collected information to the data analysis computer 12 through signal lines.

[0042] When a pedal force F is applied to the vehicle clutch pedal 4, the vehicle clutch pedal 4 rotates around a fixed axis, and the clutch separation rocker arm 9 is pushed to move axially through the clutch slave cylinder 10, and the clutch is separated; when the clutch pedal force F is gradually reduced to 0, the clutch 11 pushes the clutch separation rocker arm 9 to move axially, and the clutch slave cylinder 10 pushes the vehicle clutch pedal 4 to rotate around a fixed axis to the initial position. During the process, the whole vehicle is displaced due to the clutch engagement. The displacement of the vehicle clutch pedal 4 is collected by the first displacement sensor 2, the pedal force F applied to the vehicle clutch pedal 4 is collected by the pressure sensor 5, the axial displacement generated by the clutch separation rocker arm 9 is collected by the third displacement sensor 7, and the whole vehicle motion state signal is collected by the second displacement sensor 6.

[0043] The ratio of the measured displacement of the clutch release rocker arm 9 to the displacement of the pull rod 3 is the efficiency of the clutch control system. The stroke of the vehicle clutch pedal 4 recorded when the whole vehicle moves is the clutch engagement point when the whole vehicle starts. The pedal stroke data collected by the first displacement sensor 2 and the pedal force data collected by the pressure sensor 5 are processed by the data analysis computer 12 to draw a clutch pedal force and clutch pedal stroke relationship curve. The measured displacement of the clutch release rocker arm 9 collected by the third displacement sensor 7 and the displacement data of the vehicle clutch pedal 4 collected by the first displacement sensor 2 are processed by the data analysis computer 12 to draw a control system efficiency curve 15. The whole vehicle movement data collected by the second displacement sensor 6 and the stroke data of the vehicle clutch pedal 4 collected by the first displacement sensor 2 are processed by the data analysis computer 12 to draw a vehicle starting engagement point curve 14, which reduces measurement errors and reduces safety hazards.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0045] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for detecting the clutch handling performance of an automobile, characterized in that: It includes the following steps: Using a first displacement sensor (2) to measure the displacement of a vehicle clutch pedal (4), using a second displacement sensor (6) to measure the displacement of the entire vehicle, and using a third displacement sensor (7) to measure the displacement of a clutch release rocker arm (9); Using a data analysis computer (12), a vehicle starting engagement point curve (14) is drawn based on the displacement of the vehicle clutch pedal (4) and the displacement of the entire vehicle, and a control system efficiency curve (15) is drawn based on the displacement of the vehicle clutch pedal (4) and the displacement of the clutch release rocker arm (9); The detection method further comprises: Measuring the pedal force of the vehicle clutch pedal (4) using a pressure sensor (5); Using the data analysis computer (12), based on the displacement and pedal force of the vehicle clutch pedal (4), a force-stroke relationship curve (13) of the vehicle clutch pedal (4) is drawn; The four sensors transmit the collected information to the data analysis computer (12) through signal lines, so as to calculate and draw the vehicle starting point curve (14), the control system efficiency curve (15) and the force and stroke relationship curve (13) for analysis.

2. A device for the vehicle clutch handling performance detection method according to claim 1, characterized in that: It includes: A first displacement sensor (2), which is used to be fixed inside the vehicle, and the first displacement sensor (2) is used to measure the displacement of a clutch pedal (4) of the vehicle; A second displacement sensor (6), which is used to be fixed outside the vehicle body, and the second displacement sensor (6) is used to measure the displacement of the entire vehicle; A third displacement sensor (7) is used to be fixed on a gearbox housing (8), and the third displacement sensor (7) is used to measure the displacement of a clutch release rocker arm (9); A data analysis computer (12), whose signal is connected to the first displacement sensor (2), the second displacement sensor (6) and the third displacement sensor (7), and the data analysis computer (12) is used to draw a vehicle starting point curve (14) according to the displacement of the vehicle clutch pedal (4) and the displacement of the whole vehicle, and to draw a control system efficiency curve (15) according to the displacement of the vehicle clutch pedal (4) and the displacement of the clutch release rocker arm (9); It also includes a pressure sensor (5), the pressure sensor (5) being used to be fixed on the vehicle clutch pedal (4), the pressure sensor (5) being electrically connected to the data analysis computer (12), and the data analysis computer (12) being used to draw a force-stroke relationship curve (13) of the vehicle clutch pedal (4) based on the displacement and pedal force of the vehicle clutch pedal (4).

3. The device according to claim 2, characterized in that: The first displacement sensor (2) is a pull rod type displacement sensor, and the pull rod (3) of the first displacement sensor (2) is used to connect to the vehicle clutch pedal (4).

4. The device according to claim 3, characterized in that: The first displacement sensor (2) is used to be fixed to the steering wheel (1) of the automobile via a clamping ring, and the pull rod (3) is connected to the pull ring of the pressure sensor (5) via a hook.

5. The device according to claim 2, characterized in that: The second displacement sensor (6) is adsorbed on the outer side of the vehicle door by a magnet.

6. The device according to claim 2, characterized in that: The second displacement sensor (6) and the third displacement sensor (7) are both laser displacement sensors.

7. A system for the vehicle clutch handling performance detection method according to claim 1, characterized in that: It includes: A first processing module, which is used to draw a vehicle starting junction curve (14) based on data measured by the first displacement sensor (2) and the second displacement sensor (6); A second processing module, which is used to draw a control system efficiency curve (15) based on the data measured by the first displacement sensor (2) and the third displacement sensor (7); It also includes a third processing module, which is used to draw a vehicle clutch pedal (4) force and stroke relationship curve (13) based on data measured by the pressure sensor (5) and the first displacement sensor (2).

Images