Electric pedal control method, control system and electric pedal

Abstract

The invention belongs to the technical field of general vehicles, and particularly relates to configuration of pedals, in particular to an electric pedal control method and system and an electric pedal, and the electric pedal control method comprises the steps that when a user gets on a vehicle, a control module obtains the treading pressure of the pedal; during getting-off, the control module adjusts the extension length of the pedal according to the treading pressure obtained during getting-on, that is, when the treading pressure obtained during getting-on is not smaller than the preset maximum value, the pedal extends by the maximum length during getting-off, and when the treading pressure obtained during getting-on is smaller than the preset maximum value, the extension length of the pedal is adjusted; therefore, the extending length of the pedal is adjusted according to different treading weights, so that the contact position of a gear in the transmission mechanism and a gear on the motor is replaced, and the fixed position of the gear is prevented from being abraded.

Description

Technical Field

[0001] The present invention belongs to the technical field of general vehicles, and particularly relates to the configuration of pedals, and more particularly to an electric pedal control method, a control system and an electric pedal. Background Art

[0002] There is a welcome pedal on the vehicle, and the welcome pedal will be repeatedly stepped on when passengers get on and off the vehicle. The extension and retraction of the welcome pedal are controlled by a motor. In the prior art, most of the damage to the welcome pedal is caused by motor failures, and usually the output gear of the motor and the transmission gear meshing with the output gear in the transmission mechanism are damaged, resulting in the welcome pedal being unable to extend and retract normally.

[0003] Therefore, due to the technical problem of damage to the output gear and the transmission gear, it is necessary to design an electric pedal control method, a control system and an electric pedal.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, it is not considered that the above description constitutes the information of the prior art. Summary of the Invention

[0005] The embodiments of the present disclosure provide at least an electric pedal control method, a control system and an electric pedal.

[0006] In a first aspect, the embodiments of the present disclosure provide an electric pedal control method, including:

[0007] When getting on the vehicle, the control module obtains the stepping pressure of the pedal;

[0008] When getting off the vehicle, the control module adjusts the extension length of the pedal according to the stepping pressure obtained when getting on the vehicle, that is, when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value, the pedal extends to the maximum length when getting off the vehicle, and when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value, the extension length of the pedal is adjusted.

[0009] In an optional implementation manner, the method for adjusting the extension length of the pedal when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value includes:

[0010] The control module obtains the stepping pressure F, and the preset maximum value of the stepping pressure is F T ;

[0011] If F < F T , then when getting off the vehicle, the control module obtains the actual extension length of the pedal according to the stepping pressure F, and adjusts the extension length of the pedal according to the actual extension length.

[0012] In an optional implementation manner, the method for the control module to obtain the actual extension length of the pedal according to the stepping pressure F includes:

[0013] The actual extended length of the pedal is:

[0014]

[0015] Among them, L is the actual extended length of the pedal; L max is the maximum extended length of the pedal; η is the safety factor; μ is the transmission efficiency ratio; F is the stepping pressure; T safe is the safety torque threshold.

[0016] In an alternative embodiment, the method for adjusting the extended length of the pedal according to the actual extended length includes:

[0017] Obtaining the corresponding number of motor rotation turns according to the actual extended length:

[0018]

[0019] Among them, N is the number of motor rotation turns; I total is the total gear transmission ratio; P lead is the lead of the lead screw;

[0020] The control module controls the motor according to the number of motor rotation turns so that the extended length of the pedal reaches the corresponding actual extended length.

[0021] In an alternative embodiment, the method for the pedal to extend to the maximum length when getting off the vehicle when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value includes:

[0022] The control module obtains the stepping pressure F, and the preset maximum value of the stepping pressure is F T ;

[0023] If F > F T , then when getting off the vehicle, the control module controls the motor so that the extended length of the pedal reaches the maximum extended length.

[0024] In a second aspect, an embodiment of the present disclosure further provides an electric pedal control system, including:

[0025] A collection module configured to obtain the stepping pressure of the pedal when getting on the vehicle;

[0026] An adjustment module configured to adjust the extended length of the pedal according to the stepping pressure obtained when getting on the vehicle when getting off the vehicle.

[0027] In a third aspect, an embodiment of the present disclosure further provides a non-transitory readable storage medium, on which computer programs / instructions are stored, and when the computer programs / instructions are executed by a processor, the steps of the above-mentioned electric pedal control method are implemented.

[0028] Fourthly, an embodiment of the present disclosure also provides a program product including instructions, which, when run on a device, cause the device to execute the steps of the above electric pedal control method.

[0029] Fifthly, an embodiment of the present disclosure also provides an electric pedal, including:

[0030] a pedal, a control module, a motor and a pressure sensor electrically connected to the control module;

[0031] the motor is connected to the pedal;

[0032] the pressure sensor is arranged on the pedal to detect the stepping pressure on the pedal

[0033] the control module is adapted to adjust the extending length of the pedal by using the above electric pedal control method.

[0034] In an optional embodiment, the pedal includes: a pedal body and an extension mechanism;

[0035] the extension mechanism is connected to the pedal body;

[0036] the output end of the motor is connected to the extension mechanism through a transmission mechanism.

[0037] The beneficial effect of the present invention is that the electric pedal control method includes: when getting on the vehicle, the control module obtains the stepping pressure of the pedal; when getting off the vehicle, the control module adjusts the extending length of the pedal according to the stepping pressure obtained when getting on the vehicle, that is, when the stepping pressure obtained when getting on the vehicle is not less than a preset maximum value, the pedal extends to the maximum length when getting off the vehicle, and when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value, the extending length of the pedal is adjusted so that the extending length of the pedal is less than the maximum length, thereby realizing adjusting the extending length of the pedal according to different stepping weights to change the contact position between the gear in the transmission mechanism and the gear on the motor, and avoiding wear at the fixed position of the gear.

[0038] Other features and advantages of the present invention will be described in the following description, and some of them will be obvious from the description or understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the description and the drawings.

[0039] To make the above objectives, features and advantages of the present invention more obvious and understandable, specific preferred embodiments are given herein and detailed descriptions are made in conjunction with the accompanying drawings as follows. Description of the Drawings

[0040] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 Flowchart of an electric pedal control method provided by an embodiment of the present disclosure;

[0042] Figure 2 Principle block diagram related to an electric pedal control method provided by an embodiment of the present disclosure;

[0043] Figure 3 Schematic diagram of an electric pedal provided by an embodiment of the present disclosure;

[0044] Figure 4 Schematic diagram of the actual extended length provided by an embodiment of the present disclosure.

[0045] In the figure:

[0046] 1 Pedal, 2 Pedal body, 3 Extension mechanism, 4 Motor. Specific embodiments

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0048] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific features, structures, or characteristics after the phrase can be included in at least one embodiment of the present disclosure. Therefore, specific features, structures, or characteristics can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "for the purpose of serving as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.

[0049] In related technologies, the telescopic travel of the welcome pedal for automobiles usually includes two types. One is a fixed-length extension method, that is, the pedal has only one definite telescopic end point. The other is to extend multiple lengths according to the threshold divided by the passenger's weight, that is, the pedal has multiple definite telescopic end points. However, both of the above methods have defects. That is, the first method makes the driving shaft of the motor and the transmission gear have a fixed contact surface, and the latter only replaces one fixed contact surface with two to three fixed contact surfaces. Since the electric pedal has to bear the repeated trampling of passengers, this results in the impact on the above-mentioned fixed contact surface being much greater than that on other non-contact surfaces, thereby increasing the risk of wear or broken teeth on the contact surface.

[0050] Regarding the defects existing in the above solutions, they are all the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article for the above problems should be the contributions made by the inventors to the present disclosure during the process of the present disclosure.

[0051] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0052] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0053] As Figure 1 shown, at least one disclosed embodiment provides an electric pedal control method, including: when getting on the vehicle, the control module obtains the stepping pressure of pedal 1; when getting off the vehicle, the control module adjusts the extension length of pedal 1 according to the stepping pressure obtained when getting on the vehicle, that is, when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value, pedal 1 extends to the maximum length when getting off the vehicle, and when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value, the extension length of pedal 1 is adjusted. At this time, the extension length of pedal 1 is less than the maximum length, thereby realizing the adjustment of the extension length of pedal 1 according to different stepping weights to change the contact position between the gear in the transmission mechanism and the gear on motor 4, avoiding the wear of the fixed position of the gear, that is, adjusting the meshing position between the output gear on motor 4 and the transmission gear in the transmission mechanism, and avoiding the wear caused by their continuous meshing at a fixed position.

[0054] In this embodiment, an output gear is provided on the output shaft of the motor 4, which rotates following the output shaft of the motor 4. An extension mechanism 3 is provided on the pedal body 2, and a transmission mechanism is connected between the extension mechanism 3 and the output gear. The transmission mechanism can be composed of gears. The output gear meshes with the transmission gear in the transmission mechanism. In the related art, the extended length of the pedal 1 is determined, that is, the meshing position between the output gear and the meshing transmission gear after the pedal 1 extends is fixed. After the pedal 1 is repeatedly stepped on, the force-bearing positions of the output gear and the transmission gear remain unchanged, resulting in an increased risk of wear or tooth breakage at the force-bearing positions.

[0055] In this embodiment, adjusting the extended length of the pedal 1 is to adjust the extended length of the pedal body 2.

[0056] In an alternative embodiment, the method for adjusting the extended length of the pedal 1 when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value includes: the control module obtains the stepping pressure F, and the preset maximum value of the stepping pressure is F T ; if F < F T , then when getting off the vehicle, the control module obtains the actual extended length of the pedal 1 according to the stepping pressure F, and adjusts the extended length of the pedal 1 according to the actual extended length.

[0057] In this embodiment, the extended length of the pedal 1 is adjusted according to the different stepping weights to change the contact position between the output gear and the transmission gear, so as to avoid an increased risk of wear or tooth breakage between these two gears.

[0058] In this embodiment, the stepping pressure can reflect the weight of the passenger. When the passenger's weight is small, the extended length of the pedal 1 can be adjusted. After the pedal 1 extends, the contact position between the transmission gear and the output gear is changed.

[0059] In this embodiment, the support of the electric pedal mainly comes from the mechanical bracket of the pedal 1. The mechanical bracket can be the extension mechanism 3, etc. The load between the motor shaft, the output gear and the transmission gear is more the impact force when the passenger steps on for the first time. For this, the extended length of the pedal 1 is adjusted through the set preset maximum value. If the passenger's weight is greater than the preset maximum value, the pedal 1 extends to its normal length at this time, so that the mechanical bracket can be fully opened to bear the passenger's stepping pressure in the best load state. When the passenger's weight is less than the preset maximum value, the length of the pedal 1 is adjusted, so that the contact position between the transmission gear and the output gear is changed, avoiding long-term single-position force damage between the two. And because the length adjustment of the pedal 1 is only a few millimeters, the safety of stepping can be ensured.

[0060] Such as Figure 4As shown, in an alternative embodiment, the method for the control module to obtain the actual extension length of the pedal 1 based on the stepping pressure F includes: The actual extension length of the pedal 1 is:

[0061]

[0062] where L is the actual extension length of the pedal 1, and the specific corresponding position is as Figure 4 shown, in meters; L max is the maximum extension length of the pedal 1, in meters; η is the safety factor, which can be 0.08; μ is the transmission efficiency ratio, which can be 0.9; F is the stepping pressure, in Newtons; T safe is the safety torque threshold, in Newton - Meters.

[0063] In an alternative embodiment, the method for adjusting the extension length of the pedal 1 according to the actual extension length includes: Obtaining the corresponding number of rotation turns of the motor 4 based on the actual extension length:

[0064]

[0065] where N is the number of rotation turns of the motor 4; I total is the total gear transmission ratio, the transmission ratio of all gears between the motor 4 and the extension mechanism 3, which can be 12; P lead is the lead screw pitch, in millimeters per revolution; The control module controls the motor 4 according to the number of rotation turns of the motor 4 so that the extension length of the pedal 1 reaches the corresponding actual extension length.

[0066] Specifically, if the stepping pressure is 588 N, the safety torque threshold is 50, the safety factor is 0.08, the transmission ratio efficiency is 0.9, the maximum extension length is 0.3, the lead screw pitch is 2, and the preset maximum value of the stepping pressure is 988, then the actual extension length L of the pedal 1 is 0.292, and at this time the number of rotation turns of the motor 4 is 1752.

[0067] In an alternative embodiment, the method for the pedal 1 to extend to the maximum extension length when getting off the vehicle when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value includes: The control module obtains the stepping pressure F, and the preset maximum value of the stepping pressure is F T ; If F > F T , then when getting off the vehicle, the control module controls the motor 4 so that the extension length of the pedal 1 reaches the maximum extension length.

[0068] In this embodiment, when the stepping pressure is not less than the preset maximum value, it is determined that the weight of the passenger is too heavy at this time. When getting off the vehicle, the pedal 1 extends to the maximum extension length, so that the extension mechanism 3 is fully unfolded, so that the extension mechanism 3 can fully bear the stepping pressure.

[0069] In some embodiments, since the stepping of pedal 1 is uncertain, because the number of passengers and the weight of passengers will change, the maximum weight of a single step is usually used as an adjustment condition. That is, if three people get on the car before a driving process, and the weight of one of them exceeds the preset maximum value, it is determined that the electric pedal (pedal 1) is extended to the maximum extension length when getting off the car after the driving is completed.

[0070] At least one disclosed embodiment also provides an electric pedal control system, including: a collection module, which is configured to obtain the pedal pressure of the pedal 1 when getting on the vehicle; and an adjustment module, which is configured to adjust the extension length of the pedal 1 according to the pedal pressure obtained when getting on the vehicle when getting off the vehicle.

[0071] In this embodiment, the acquisition module and the adjustment module may be virtual modules in a program or software that execute various functions, and their functions may be integrated in the control module to implement corresponding functional steps.

[0072] At least one disclosed embodiment also provides a non-transitory readable storage medium having a computer program / instruction stored thereon, which implements the steps of the above-mentioned electric pedal control method when executed by a processor.

[0073] At least one disclosed embodiment also provides a program product including instructions, which, when executed by a device, causes the device to perform the steps of the above-mentioned electric pedal control method.

[0074] like Figure 2 and Figure 3 As shown, at least one disclosed embodiment also provides an electric pedal, comprising: a pedal 1, a control module, and a motor 4 and a pressure sensor electrically connected to the control module; the motor 4 is connected to the pedal 1; the pressure sensor is arranged on the pedal 1, for example, the pedal body 2 is hollow inside, and the pressure sensor is arranged inside the pedal body 2 to detect the pedaling pressure applied to the pedal 1. The control module is suitable for adjusting the extension length of the pedal 1 by using the above-mentioned electric pedal control method.

[0075] In an optional embodiment, the pedal 1 includes: a pedal body 2 and an extension mechanism 3; the extension mechanism 3 is connected to the pedal body 2; and the output end of the motor 4 is connected to the extension mechanism 3 via a transmission mechanism.

[0076] In summary, the electric pedal control method includes: when getting in the vehicle, the control module obtains the stepping pressure of pedal 1; when getting out of the vehicle, the control module adjusts the extension length of pedal 1 according to the stepping pressure obtained when getting in the vehicle, that is, when the stepping pressure obtained when getting in the vehicle is not less than the preset maximum value, pedal 1 extends to the maximum length when getting out of the vehicle, and when the stepping pressure obtained when getting in the vehicle is less than the preset maximum value, the extension length of pedal 1 is adjusted, thereby achieving the adjustment of the extension length of pedal 1 according to different stepping weights, so as to randomly change the contact position between the gears in the transmission mechanism and the gears on the motor 4, and avoid wear at the fixed positions of the gears.

[0077] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" shall 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0078] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms used in this text do not imply an order or sequence unless clearly indicated in the text. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section.

[0079] Spatially relative terms, such as "inner", "outer", "below", "beneath", "lower", "above", "upper", etc., may be used herein to facilitate describing the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature will be oriented "above" the other element or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0080] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electric pedal control method, characterized in that, Including: When getting on the vehicle, the control module obtains the stepping pressure of the pedal (1); When getting off the vehicle, the control module adjusts the extending length of the pedal (1) according to the stepping pressure obtained when getting on the vehicle, that is, when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value, the pedal (1) extends to the maximum length when getting off the vehicle, and when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value, the extending length of the pedal (1) is adjusted.

2. The electric pedal control method according to claim 1, wherein: The method of adjusting the extending length of the pedal (1) when the stepping pressure obtained when getting on the vehicle is less than the preset maximum value includes: The control module obtains the pedaling pressure F, and the preset maximum value of the pedaling pressure is F T ; If F < F T When getting off the vehicle, the control module obtains the actual extension length of the pedal (1) according to the pedal pressure F, and adjusts the extension length of the pedal (1) according to the actual extension length.

3. The electric pedal control method according to claim 2, wherein: The method by which the control module obtains the actual extending length of the pedal (1) according to the stepping pressure F includes: The actual extending length of the pedal (1) is: Wherein, L is the actual extension length of the pedal (1); L max is the maximum extension length of the pedal (1); η is the safety factor; μ is the transmission efficiency ratio; F is the pedal pressure; T safe is the safety torque threshold.

4. The electric pedal control method according to claim 3, wherein: The method of adjusting the extending length of the pedal (1) according to the actual extending length includes: Obtaining the corresponding number of rotation turns of the motor (4) according to the actual extending length: where N is the number of rotations of the motor (4); I total is the total gear transmission ratio; P lead is the lead of the lead screw; The control module controls the motor (4) according to the number of rotation turns of the motor (4) so that the extending length of the pedal (1) reaches the corresponding actual extending length.

5. The electric pedal control method according to claim 1, wherein: The method of when the stepping pressure obtained when getting on the vehicle is not less than the preset maximum value and the pedal (1) extends to the maximum length when getting off the vehicle includes: The control module obtains the pedaling pressure F, and the preset maximum value of the pedaling pressure is F T ; If F > F T , when getting off the vehicle, the control module controls the motor (4) to make the extension length of the pedal (1) reach the maximum extension length.

6. An electric pedal control system, characterized in that, Including: A collection module configured to obtain the stepping pressure of the pedal (1) when getting on the vehicle; An adjustment module configured to adjust the extending length of the pedal (1) according to the stepping pressure obtained when getting on the vehicle when getting off the vehicle.

7. A non-transitory readable storage medium, on which a program / instructions is stored, characterized in that, When the program / instructions are executed by the processor, the steps of the electric pedal control method according to any one of claims 1-5 are implemented.

8. A program product containing instructions, characterized in that, When the instructions are run by the device, the device is caused to execute the steps of the electric pedal control method according to any one of claims 1-5.

9. An electric pedal, characterized in that, Including: The pedal (1), a control module, and a motor (4) and a pressure sensor electrically connected to the control module; The motor (4) is connected to the pedal (1); The pressure sensor is arranged on the pedal (1) to detect the stepping pressure received by the pedal (1) The control module is adapted to adjust the extending length of the pedal (1) by using the electric pedal control method according to any one of claims 1-5.

10. The electric pedal according to claim 9, wherein: The pedal (1) includes: a pedal body (2) and an extension mechanism (3); The extension mechanism (3) is connected to the pedal body (2); The output end of the motor (4) is connected to the extension mechanism (3) through a transmission mechanism.

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