Pedal assembly, braking method and vehicle

Abstract

The application discloses a pedal assembly, a braking method and a vehicle, and the pedal assembly comprises a driver's seat floor, a pressure sensor and a control module, the driver's seat floor is provided with a brake treading area, the pressure sensor is arranged on the brake treading area and is used for detecting a pressure value of the brake treading area, and the control module is connected with the pressure sensor and is used for braking the vehicle according to the pressure value detected by the pressure sensor. According to the pedal assembly of the application, the brake treading area is arranged on the driver's seat floor, and the pressure sensor is arranged on the brake treading area, so that the vehicle can be braked through pressure change, a pedal stroke-free braking mode is realized, and compared with the scheme of arranging an independent brake pedal on the driver's seat floor to brake, the risk that foreign matters fall between the pedal and the driver's seat floor and cause the pedal to be unable to be stepped on can be avoided, the vehicle can be reliably braked, and the braking safety of the vehicle is effectively ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle engineering, in particular to a pedal assembly, a braking method and a vehicle. BACKGROUND

[0002] In the related art, in the scheme of setting an independent brake pedal on the driver's floor, there is a pedal stroke on the brake pedal, and when a water cup or a mobile phone or other sundries falls below the pedal, it is easy to cause the brake pedal to be stuck, thereby causing the vehicle to be unable to brake, and there is a driving risk. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a pedal assembly which can realize vehicle braking through pressure change, realize a pedal stroke-free braking mode, and enable the vehicle to reliably brake and effectively ensure the braking safety of the vehicle.

[0004] The present application also provides a braking method for braking a vehicle by using the above pedal assembly.

[0005] The present application also provides a vehicle having the above pedal assembly.

[0006] According to the pedal assembly of the first aspect of the present application, a driver's floor having a brake pedal region is provided, a pressure sensor is arranged in the brake pedal region for detecting the pressure value of the brake pedal region, and a control module is connected to the pressure sensor and used for braking the vehicle according to the pressure value detected by the pressure sensor.

[0007] According to the pedal assembly of the present application, by setting a brake pedal region on the driver's floor and arranging a pressure sensor in the brake pedal region, the vehicle can be braked through pressure change, a pedal stroke-free braking mode is realized, and compared with the scheme of setting an independent brake pedal on the driver's floor, the risk that foreign matter falling between the pedal and the driver's floor causes the pedal to be unable to be stepped on can be avoided, the vehicle can reliably brake, and the braking safety of the vehicle can be effectively ensured.

[0008] According to some embodiments of the present application, the brake pedal region is convex toward the driver's seat of the vehicle.

[0009] According to some embodiments of the present application, the surface of the brake pedal region toward the driver's seat of the vehicle is a pedal surface, and the normal of the pedal surface and the length direction of the vehicle form an angle greater than or equal to 25° and less than or equal to 35°.

[0010] According to some embodiments of the present application, the pressure sensor is arranged on a side of the brake pedal area facing the driver's cabin of the vehicle.

[0011] According to some embodiments of the present application, the driver's floor is elastically deformable at the brake pedal area, and the pressure sensor is arranged on a side of the brake pedal area facing away from the driver's cabin of the vehicle.

[0012] According to the brake method of the second aspect of the present application, the vehicle is braked by using the pedal assembly of the first aspect of the present application, and the brake method comprises:

[0013] Recording an initial pressure value when the driver initially steps on the brake pedal area;

[0014] Detecting a dynamic pressure value when the driver subsequently steps on the brake pedal area;

[0015] Confirming that the difference between the dynamic pressure value and the initial pressure value is greater than or equal to a fluctuation value;

[0016] Braking the vehicle.

[0017] According to the brake method of the present application, the vehicle is braked by using the pedal assembly described above, and the vehicle can be braked by pressure change, realizing a pedal stroke-free braking mode, so that the vehicle can be reliably braked, effectively ensuring the braking safety of the vehicle, and the user's foot can be placed more relaxed on the brake pedal area, avoiding long-time force action on the brake pedal area and causing user fatigue, and improving the overall performance of the vehicle.

[0018] According to some embodiments of the present application, before recording the initial pressure value when the driver initially steps on the brake pedal area, the brake method further comprises:

[0019] Confirming that the pressure value when the driver steps on the brake pedal area is within a preset initial range; wherein the preset initial range is the pressure value range when the driver of different height and weight places his foot on the brake pedal area in a natural state.

[0020] According to some embodiments of the present application, before braking the vehicle, the brake method further comprises:

[0021] Confirming that the increase value of the dynamic pressure value in a preset time period is greater than or equal to a preset difference value; wherein the preset difference value is less than the fluctuation value.

[0022] According to some embodiments of the present application, the preset time period is greater than or equal to 100 ms and less than or equal to 300 ms.

[0023] The vehicle according to the third aspect of the present application comprises the pedal assembly according to the second aspect of the present application.

[0024] According to the vehicle of the present application, the pedal assembly described above can realize the braking of the vehicle through the pressure change, realize the pedal stroke-free braking mode, and make the vehicle reliably brake, effectively ensuring the braking safety of the vehicle.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0027] Figure 1 is a schematic view of a vehicle according to some embodiments of the present application;

[0028] Figure 2 is a flow chart of a braking method according to some embodiments of the present application.

[0029] REFERENCE NUMERALS:

[0030] 100, vehicle; 10, pedal assembly; 1, driver's floor; 11, braking pedal area; 12, pedal surface. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which examples of the embodiments are shown, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0032] The pedal assembly 10 according to the embodiments of the present application is described below with reference to the accompanying drawings.

[0033] Referring to Figure 1 and Figure 2According to the pedal assembly 10 of the first aspect of the present application, the driver seat floor 1 has a brake pedal area 11, and the pressure sensor is arranged on the brake pedal area 11. The pressure sensor is used to detect the pressure value of the brake pedal area 11. The control module is connected with the pressure sensor, and the control module is used to brake the vehicle 100 according to the pressure value detected by the pressure sensor. For example, the control module can control the brake system of the vehicle 100 to brake the vehicle 100 when it is confirmed that the pressure value change amount exceeds the pressure value 5N in the natural state. The control module can also control the brake system of the vehicle 100 to brake the vehicle 100 when it is confirmed that the pressure value changes by 2N in 200ms.

[0034] By arranging the brake pedal area 11 on the driver seat floor 1 and arranging the pressure sensor on the brake pedal area 11, the brake of the vehicle 100 can be realized through the pressure change, and the brake mode without pedal stroke is realized. Compared with the scheme of arranging the independent brake pedal on the driver seat floor 1 to brake, the risk that foreign matter falls between the pedal and the driver seat floor 1 to cause the pedal to be unable to be stepped down can be avoided, so that the vehicle 100 can be reliably braked, and the brake safety of the vehicle 100 is effectively ensured.

[0035] Referring to Figure 1 and Figure 2 According to some embodiments of the present application, the brake pedal area 11 is protruded towards the driver seat of the vehicle 100. That is, the brake pedal area is protruded from the driver seat floor 1, so that the user can easily identify the brake pedal area 11, and accurately step on the brake pedal area.

[0036] Referring to Figure 1 and Figure 2 According to some embodiments of the present application, the surface of the brake pedal area 11 towards the driver seat of the vehicle 100 is a pedal surface 12, and the normal of the pedal surface 12 and the length direction of the vehicle 100 forms an angle greater than or equal to 25° and less than or equal to 35°. That is, when the vehicle 100 is placed horizontally, the angle between the pedal surface 12 and the horizontal plane is greater than or equal to 25° and less than or equal to 35°. For example, the angle between the normal of the pedal surface 12 and the length direction of the vehicle 100 can be 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, or 35°.

[0037] When the user sits on the driver's seat and places the feet on the tread surface 12, the tread surface 12 can be more in line with the user's foot, and the angle between the user's foot and lower leg is more labor-saving, which meets the user's requirement for high-quality riding experience. At the same time, the tread surface 12 is arranged at a certain angle with the horizontal plane, so that when foreign matter (for example, the foreign matter can be a water cup, a mobile phone or a wallet) falls on the driver's seat floor 1, the foreign matter can be avoided to stay on the tread surface 12, so that the user can more reliably control the vehicle 100 to brake through the tread surface 12, and the safety performance of the vehicle 100 is improved.

[0038] With reference to Figure 1 and Figure 2 , according to some embodiments of the present application, the pressure sensor is arranged on the side of the brake tread area 11 towards the cab of the vehicle 100, i.e. the pressure sensor is arranged on the tread surface 12. In this way, the pressure sensor can more sensitively and directly detect the force applied by the user on the brake tread area 11, so that the detection result is more accurate, and the reaction speed of the control module to brake the vehicle 100 through the pressure value detected by the pressure sensor is more sensitive, so that the vehicle 100 can be more quickly and reliably braked, the reliability of the vehicle 100 is improved, and the safety performance of the vehicle 100 is improved.

[0039] With reference to Figure 1 and Figure 2 , according to some embodiments of the present application, the driver's seat floor 1 is elastically deformable at the brake tread area 11, and the pressure sensor is arranged on the side of the brake tread area 11 away from the cab of the vehicle 100. In this way, the risk of damage to the pressure sensor due to long-time stepping can be reduced, the wire harness of the pressure sensor can be arranged on the outside of the cab, the risk of damage to the wire harness of the pressure sensor can be reduced, the reliability of the pressure sensor is improved, the service life of the pressure sensor is prolonged, and the reliability of the vehicle 100 is improved.

[0040] With reference to Figure 2 , according to the brake method of the second aspect of the present application, the vehicle 100 is braked by using the pedal assembly 10 according to the first aspect of the present application described above, and the brake method comprises:

[0041] record the initial pressure value F1 when the driver initially steps on the brake tread area 11;

[0042] detect the dynamic pressure value F2 when the driver subsequently steps on the brake tread area 11;

[0043] confirm that the difference between the dynamic pressure value F2 and the initial pressure value F1 is greater than or equal to the fluctuation value F3;

[0044] brake the vehicle 100.

[0045] When the user sits in the driver's seat and places his feet on the pedal surface 12, the initial pressure value F1 when the user initially steps on the brake pedal area 11 is recorded, and then the dynamic pressure value F2 when the user subsequently steps on the brake pedal area 11 is continuously detected. When the difference between the dynamic pressure value F2 and the initial pressure value F1 is less than the fluctuation value F3, the control system determines that the force applied by the user to the brake pedal area 11 is within the fluctuation range in the natural placement state, and the vehicle 100 is not braked. When the difference between the dynamic pressure value F2 and the initial pressure value F1 is greater than or equal to the fluctuation value F3, the control system determines that the force applied by the user to the brake pedal area 11 exceeds the fluctuation range in the natural placement state, determines that the user has applied a brake signal to the vehicle 100, and the control module controls the brake system of the vehicle 100 to brake the vehicle 100.

[0046] The difference between the dynamic pressure value F2 and the initial pressure value F1 is greater than or equal to the fluctuation value F3, including the case that the dynamic pressure value F2 is greater than the initial pressure value F1 and the case that the dynamic pressure value F2 is less than the initial pressure value F1. It should be understood that when the dynamic pressure value F2 is greater than the initial pressure value F1, it is the user's force applied to the brake pedal area 11. When the dynamic pressure value F2 is less than the initial pressure value F1, it is the pressure value reduction caused by the user's foot leaving the brake pedal area 11, which can achieve the braking of the vehicle 100 after the driver leaves the vehicle.

[0047] The vehicle 100 is braked by using the above pedal assembly 10, which can achieve the braking of the vehicle 100 through pressure changes, realize the pedal stroke-free braking mode, and reliably brake the vehicle 100, effectively ensuring the braking safety of the vehicle 100.

[0048] At the same time, the vehicle 100 is braked by confirming that the difference between the dynamic pressure value F2 and the initial pressure value F1 is greater than or equal to the fluctuation value F3. When the user slightly applies force to the brake pedal area 11 or slightly moves away from the brake pedal area 11, the vehicle 100 is not braked, so that the user's feet can be placed more relaxed in the brake pedal area 11, avoiding user fatigue caused by long-time force application to the brake pedal area 11, and improving the overall performance of the vehicle 100. At the same time, this can reduce the risk of the vehicle 100 being braked due to changes in the force applied by the user to the brake pedal area 11 caused by vibration of the vehicle 100, so that the vehicle 100 can be reliably braked by using the above braking method.

[0049] According to the brake method, the vehicle 100 is braked by the pedal assembly 10, the brake of the vehicle 100 can be realized by pressure change, the brake mode without pedal stroke is realized, the vehicle 100 can be reliably braked, the brake safety of the vehicle 100 is effectively ensured, the user's foot can be placed in the brake pedal area 11 more relaxed, the fatigue of the user caused by long-time force application to the brake pedal area 11 is avoided, and the overall performance of the vehicle 100 is improved.

[0050] With reference to Figure 2 According to some embodiments of the present application, before recording the initial pressure value of the driver when initially stepping on the brake pedal area 11, the brake method further comprises:

[0051] Confirming that the pressure value of the driver when stepping on the brake pedal area 11 is within a preset initial range; wherein the preset initial range is a pressure value range of the driver with different heights and weights when placing the foot on the brake pedal area 11 in a natural state. For example, the preset initial range can be collected and stored in the control module in advance.

[0052] When the user sits in the driver's seat and places the foot on the pedal surface 12, the pressure value of the driver when stepping on the brake pedal area 11 is detected, when the detected pressure value of the driver when stepping on the brake pedal area 11 is not within the preset initial range, it is judged as an abnormal driving state, the control module does not brake the vehicle 100, and the driving function of the vehicle 100 is not activated; when the detected pressure value of the driver when stepping on the brake pedal area 11 is within the preset initial range, it is judged that the driver is in a normal driving state, and the pressure value is recorded as the initial pressure value F1.

[0053] In this way, the control module can generate different initial pressure values F1 according to the different heights and weights of each driver, so that the driver with higher height and heavier weight can not need to control the force to be smaller when braking the vehicle 100, and the driver with higher height and heavier weight can not need to accurately control the force applied thereto; the driver with lower height and lighter weight can not need to apply a larger force to the brake pedal when braking the vehicle 100, so that the driver with lower height and lighter weight can be more labor-saving when braking the vehicle 100, thereby realizing personalized brake matching of the vehicle 100 and meeting the user's demand for high-quality stepping experience.

[0054] With reference to Figure 2 According to some embodiments of the present application, before braking the vehicle 100, the brake method further comprises:

[0055] Confirming that the increase F4 of the dynamic pressure value F2 in the preset time period T is greater than or equal to a preset difference F5;

[0056] Wherein, the preset difference F5 is less than the fluctuation value F2, for example, the preset difference F5 can be 2N.

[0057] When the difference between the dynamic pressure value F2 and the initial pressure value F1 is less than the fluctuation value F3, and the increase value F4 of the dynamic pressure value F2 in the preset time period T is less than the preset difference F5, the control system determines that the force applied by the user to the brake pedal area 11 is within the fluctuation range in the natural placement state, and does not brake the vehicle 100; when the difference between the dynamic pressure value F2 and the initial pressure value F1 is less than the fluctuation value F3, and the increase value F4 of the dynamic pressure value F2 in the preset time period T is greater than or equal to the preset difference F5, the control system determines that the change rate of the force applied by the user to the brake pedal area 11 exceeds the change rate of the fluctuation in the natural placement state, the control system determines that the user has applied a brake signal to the vehicle 100, and the control module controls the brake system of the vehicle 100 to brake the vehicle 100.

[0058] By detecting whether the increase value F4 of the dynamic pressure value F2 in the preset time period T is greater than or equal to the preset difference F5, it is determined whether the vehicle 100 needs to be braked. When foreign matter falls and hits the brake pedal area 11, the risk of the vehicle 100 being braked due to the instantaneous change of the force generated by the dynamic pressure value F2 caused by the falling of foreign matter can be reduced, the risk of the vehicle 100 being braked due to the change of the force applied by the user to the brake pedal area 11 caused by the vibration of the vehicle 100 can be reduced, and the reliability of the vehicle 100 can be improved.

[0059] In this way, whether the driver needs to brake the vehicle 100 can be determined by the change rate of the dynamic pressure value F2, and the vehicle 100 can be braked in time when it is confirmed that the driver needs to brake the vehicle 100, the response rate of the brake system is improved, and the overall performance of the vehicle 100 is improved.

[0060] Referring to Figure 2According to some embodiments of the present application, the preset time period is greater than or equal to 100 ms and less than or equal to 300 ms; for example, the preset time period can be 100 ms, 110 ms, 120 ms, 130 ms, 140 ms, 150 ms, 160 ms, 170 ms, 180 ms, 190 ms, 200 ms, 210 ms, 220 ms, 230 ms, 240 ms, 250 ms, 260 ms, 270 ms, 280 ms, 290 ms, 300 ms. The longer the preset time period, the more effectively the instantaneous change in force caused by the falling of foreign matter resulting in the dynamic pressure value F2 can be filtered out, the more effectively the change in force applied by the user to the brake pedal area 11 caused by the vibration of the vehicle 100 can be filtered out, and the more reliably the brake method can analyze whether the user needs to brake the vehicle 100; the shorter the preset time period, the shorter the analysis time of the brake method in analyzing whether the user needs to brake the vehicle 100, and the more timely the vehicle 100 can be braked when the vehicle 100 needs to be braked.

[0061] By setting the preset time period to be greater than or equal to 100 ms and less than or equal to 300 ms, the instantaneous change in force caused by the falling of foreign matter resulting in the dynamic pressure value F2 and the change in force applied by the user to the brake pedal area 11 caused by the vibration of the vehicle 100 can be effectively filtered out, so that the brake method can quickly and reliably analyze whether the user needs to brake the vehicle 100 and reliably brake the vehicle 100 when the vehicle 100 needs to be braked.

[0062] Referring to Figures 1-2 According to the vehicle 100 of the third aspect of the present application, the vehicle 100 includes the pedal assembly 10 according to the second aspect of the present application. For example, the vehicle 100 can be a car.

[0063] According to the vehicle 100 of the present application, by means of the pedal assembly 10 described above, the brake of the vehicle 100 can be achieved by pressure change, realizing a pedal stroke-free brake mode, so that the vehicle 100 can be reliably braked, effectively ensuring the brake safety of the vehicle 100.

[0064] In the description of the present application, it is to be understood that the terms such as "first" and "second", and the like, merely refer to difference between entities or operations, and do not necessarily imply that these entities or operations are in any specific sequence, unless explicitly stated otherwise. Also, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to comprise only those elements in the list, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0065] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used for convenience in describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that the referred devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application.

[0066] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The exemplary expressions of the above terms in the present specification do not necessarily refer to the same embodiment or example. Also, the specific feature, structure, material, or characteristic described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, alternatives, and variations of these embodiments can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A pedal assembly comprising: The brake pedal assembly comprises: a driver's seat floor having a brake pedal area; a pressure sensor arranged in the brake pedal area for detecting a pressure value of the brake pedal area; a control module connected to the pressure sensor and configured to brake the vehicle according to the pressure value detected by the pressure sensor; the control module is configured to record an initial pressure value when the driver initially steps on the brake pedal area; the control module detects a dynamic pressure value when the driver subsequently steps on the brake pedal area through the pressure sensor; and the control module is configured to brake the vehicle when the difference between the dynamic pressure value and the initial pressure value is greater than or equal to a fluctuation value; wherein the difference between the dynamic pressure value and the initial pressure value greater than or equal to the fluctuation value includes both the dynamic pressure value greater than the initial pressure value and the dynamic pressure value less than the initial pressure value.

2. The pedal assembly of claim 1, wherein, The brake pedal area is convex towards the driver's seat of the vehicle.

3. The pedal assembly of claim 1, wherein, The surface of the brake pedal area towards the driver's seat of the vehicle is a pedal surface, and the normal of the pedal surface and the length direction of the vehicle form an angle greater than or equal to 25° and less than or equal to 35°.

4. The pedal assembly of claim 1, wherein, The pressure sensor is arranged on one side of the brake pedal area towards the driver's cabin of the vehicle.

5. The pedal assembly of claim 1, wherein, The driver's seat floor is elastically deformable in the brake pedal area, and the pressure sensor is arranged on the side of the brake pedal area away from the driver's cabin of the vehicle.

6. A braking method, characterized by, The brake method for a vehicle using the brake pedal assembly according to any one of claims 1-5 comprises: recording an initial pressure value when the driver initially steps on the brake pedal area; detecting a dynamic pressure value when the driver subsequently steps on the brake pedal area; confirming that the difference between the dynamic pressure value and the initial pressure value is greater than or equal to a fluctuation value; braking the vehicle.

7. The braking method according to claim 6, characterized in that, Before recording the initial pressure value when the driver initially steps on the brake pedal area, the brake method further comprises: confirming that the pressure value when the driver steps on the brake pedal area is within a preset initial range; wherein the preset initial range is the pressure value range when the driver naturally places his foot on the brake pedal area in different heights and weights.

8. The braking method according to claim 6, characterized in that, Before braking the vehicle, the brake method further comprises: confirming that the increase value of the dynamic pressure value in a preset time period is greater than or equal to a preset difference value; wherein the preset difference value is less than the fluctuation value.

9. The braking method according to claim 8, characterized in that, The preset time period is greater than or equal to 100 ms and less than or equal to 300 ms.

10. A vehicle characterized by comprising: The brake pedal assembly according to any one of claims 1-5. ​

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