CN111301593B - Vehicle speed control device, circuit, method, medium, and terminal - Google Patents
Vehicle speed control device, circuit, method, medium, and terminal Download PDFInfo
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- CN111301593B CN111301593B CN202010084263.0A CN202010084263A CN111301593B CN 111301593 B CN111301593 B CN 111301593B CN 202010084263 A CN202010084263 A CN 202010084263A CN 111301593 B CN111301593 B CN 111301593B
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- vehicle speed
- capacitor
- outer ring
- inner ring
- charging voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/08—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips foot actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
Abstract
The invention provides a vehicle speed control device, a circuit, a method, a medium and a terminal, comprising: an outer ring of the device; an inner ring of the device; a cavity between the device inner ring and the device outer ring is filled with a charge storage medium so as to form a capacitor between the device inner ring and the device outer ring; the capacitor is coupled with a voltage source for charging and discharging, and the charging voltage value of the capacitor is used for controlling the vehicle speed; the outer ring of the device is a deformable outer ring, and the distance between the outer ring and the inner ring of the device is changed through self deformation, so that the vehicle speed is changed. According to the technical scheme provided by the invention, the speed is controlled in a mode of converting the external pressure into the voltage, an effective feedback system is formed, and the safety of a rider is better protected.
Description
Technical Field
The present invention relates to the field of shared vehicles, and more particularly, to a vehicle speed control apparatus, circuit, method, medium, and terminal.
Background
Moped and motorcycle have been more and more deeply into people's life, have brought very big facility for people's life, are the indispensable better choice of people's trip. Nevertheless, many functions of the moped and the motorcycle have many places to be improved in practical use.
Taking an acceleration control mode as an example, a traditional moped and a traditional motorcycle rotate by screwing a handlebar to realize acceleration, but the speed control mode easily causes too much acceleration due to excessive force, causes many potential safety hazards, and cannot effectively protect the safety of riders.
Therefore, those skilled in the art have made efforts to develop a specific accelerating device capable of forming a positive feedback system to thereby preferably protect the safety of a rider.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to develop a specific accelerating device capable of forming a positive feedback system to protect the safety of the rider.
To achieve the above object, a first aspect of the present invention provides a vehicle speed control device comprising: an outer ring of the device; an inner ring of the device; a cavity between the device inner ring and the device outer ring is filled with a charge storage medium so as to form a capacitor between the device inner ring and the device outer ring; the outer ring of the device is a deformable outer ring, and the distance between the outer ring and the inner ring of the device is changed through self deformation, so that the vehicle speed is changed.
In a preferred embodiment of the first aspect of the invention, the vehicle speed control device further includes: the voltage source is coupled with the capacitor and used for charging and discharging the capacitor; and the main control chip is coupled with the capacitor and used for receiving the charging voltage data of the capacitor and outputting a corresponding vehicle speed control instruction according to the charging voltage data.
In a preferred embodiment of the first aspect of the present invention, the main control chip outputs a control command for making a vehicle speed change inversely with the charging voltage data according to the received charging voltage data of the capacitor.
In a preferred embodiment of the first aspect of the present invention, the vehicle speed and the charging voltage value of the capacitor change in opposite directions, the charging voltage value of the capacitor and the capacitance value thereof change in opposite directions, and the capacitance value of the capacitor and the distance between the device inner ring and the device outer ring change in opposite directions.
In a preferred embodiment of the first aspect of the present invention, the main control chip outputs a control command for making a vehicle speed vary positively with the charging voltage data according to the received charging voltage data of the capacitor.
In a preferred embodiment of the first aspect of the present invention, the vehicle speed and the charging voltage value of the capacitor change in a forward direction, the charging voltage value of the capacitor and the capacitance value thereof change in a reverse direction, and the capacitance value of the capacitor and the distance between the device inner ring and the device outer ring change in a reverse direction.
In a preferred embodiment of the first aspect of the present invention, the charge storage medium filled in the cavity is soft rubber with metal powder.
To achieve the above object, a second aspect of the present invention provides a vehicle speed control circuit comprising: a voltage source; the first end of the voltage source is grounded; a resistance; the first end of the resistor is connected with the second end of the voltage source; a capacitor; the first end of the capacitor is grounded, and the second end of the capacitor is connected with the second end of the resistor; the voltage source charges and discharges the capacitor through the resistor; the input end of the analog-to-digital conversion circuit is connected with the second end of the capacitor and is used for performing analog-to-digital conversion on the voltage value of the capacitor; the input end of the main control chip is connected with the output end of the analog-to-digital conversion circuit; the main control chip is used for outputting a corresponding vehicle speed control instruction according to the input charging voltage value of the capacitor; wherein the capacitance is equivalently formed by the inner ring, the deformable outer ring and the charge storage medium filled between the inner ring and the deformable outer ring; the deformable outer ring changes the distance between the deformable outer ring and the inner ring through deformation, and the vehicle speed changes along with the change of the distance between the deformable outer ring and the inner ring.
To achieve the above object, a third aspect of the invention provides a vehicle speed control method, the method comprising: acquiring charging voltage data of a capacitor; outputting a corresponding vehicle speed control instruction according to the charging voltage data of the capacitor; the capacitor is equivalently formed by an inner ring, a deformable outer ring and a charge storage medium filled between the inner ring and the deformable outer ring; the deformable outer ring changes the distance between the deformable outer ring and the inner ring through deformation, and the vehicle speed changes along with the change of the distance between the deformable outer ring and the inner ring.
In a preferred embodiment of the third aspect of the present invention, the vehicle speed control command includes a control command for changing the vehicle speed and the charging voltage value of the capacitor in opposite directions; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner ring and the deformable outer ring are changed reversely.
In a preferred implementation manner of the third aspect of the present invention, the vehicle speed control command includes a control command for changing the vehicle speed and the charging voltage value of the capacitor in a positive direction; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner ring and the deformable outer ring are changed reversely.
To achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the vehicle speed control method.
To achieve the above object, a fifth aspect of the present invention provides an electronic terminal, comprising: a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory so as to enable the terminal to execute the vehicle speed control method.
The vehicle speed control device, the circuit, the method, the medium and the terminal provided by the invention have the following technical effects: according to the technical scheme provided by the invention, the vehicle speed is controlled in a mode of converting the external pressure into the voltage, a positive feedback system which is easy to be sensed by a user is formed, and the safety of a rider can be well protected.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a vehicle speed control apparatus of the present invention.
Fig. 2 is a schematic circuit diagram of a vehicle speed control apparatus according to a preferred embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a preferred embodiment of the vehicle speed control circuit of the present invention.
FIG. 4 is a flow chart of a preferred embodiment of the vehicle speed control method of the present invention.
Fig. 5 is a schematic structural diagram of a preferred embodiment of the electronic terminal of the present invention.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It is noted that in the following description, reference is made to the accompanying drawings which illustrate several embodiments of the present application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "above," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The existing moped and motorcycle comprises a household moped, a household motorcycle, a shared moped, a shared motorcycle and the like, the speed control is realized by twisting a handlebar, but the speed control mode cannot form effective feedback, a user can hardly perceive how many handlebars are rotated to the end, and particularly, the speed of the bicycle is greatly accelerated by slightly rotating the handlebars. Therefore, the vehicle speed control mode cannot form effective positive feedback, so that the acceleration is easy to be too violent, and the safety of a rider cannot be effectively protected.
In view of the above, the present invention provides a vehicle speed control device, a circuit, a method, a medium, and a terminal, which control a vehicle speed by converting a pressure applied to a handlebar into a voltage, thereby forming a positive feedback system that is easily perceived by a user, and can well protect safety of a rider.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
as shown in fig. 1, a schematic structural diagram of a vehicle speed control device in an embodiment of the invention is shown. The vehicle speed control device of the present embodiment includes a device outer ring 101 and a device inner ring 102, and a cavity is formed between the device outer ring 101 and the device inner ring 102, and the cavity is filled with a charge storage medium 103, so that a capacitance is formed between the device outer ring 101 and the device inner ring 102.
In a preferred implementation manner of this embodiment, the charge storage medium filled in the cavity formed between the device outer ring 101 and the device inner ring 102 is soft rubber with metal powder.
In this embodiment, the outer ring 101 is made of a deformable material (such as rubber, deformable plastic, or deformable metal), and can change a distance (denoted as distance d) from the inner ring 102 by deforming itself. For example, the outer ring 101 of the device is pressed toward the inner ring 102 of the device when being subjected to an external pressing force, so that the distance d between the inner ring 102 of the device and the outer ring 101 of the device becomes smaller; conversely, when the external pressing force applied to the device outer ring 101 becomes small or disappears, the device outer ring becomes distant from the device inner ring 102, and thus the distance d between the device inner ring 102 and the device outer ring 101 becomes large. The device outer ring 101 changes the distance from the device inner ring 102 through self deformation, and the change of the distance between the device inner ring and the device outer ring is used for changing the vehicle speed.
It should be understood that the vehicle speed control device of the present invention can be disposed on a handle of a controlled vehicle, the outer ring of the device is the outer ring of the handle, the inner ring of the device is the outer ring of the handle, and the outer ring of the device can be deformed by the gripping force of the hand when a user holds the handle, so as to change the distance between the inner ring of the device and the outer ring of the device, thereby controlling the vehicle speed. The vehicle speed control device is preferably sleeved on the handle, and the contact area of the vehicle speed control device and the hand is designed to be larger, so that the palm of a user can contact the vehicle speed control device when holding the handle, and the fingers and the palm of the user can exert force together to control the vehicle speed; of course, for cost reasons, the contact area between the vehicle speed control device and the hand may be designed to be small, so that the user can control the vehicle speed by using only a part of the fingers (such as the thumb and the index finger), and the embodiment is not limited thereto.
In addition, the vehicle speed control device of the present invention may be provided in other places than the handle. For example, the vehicle speed control device can be arranged on a pedal, and the outer ring of the device is deformed by the pressing force of the foot part, so that the vehicle speed is changed. For another example, the vehicle speed control device can be arranged on a lifting rod, so that the height of the lifting rod can be adjusted up and down to match the height of the knees of a user, and the user can deform the outer ring of the device through the clamping force between the knees, so that the vehicle speed is changed. Because the outer ring of the control device has more deformation, the outer ring is not listed.
Further, after the deformable device outer ring 101 changes the distance d by self deformation, the capacitance value of the capacitor is changed, and the capacitance value of the capacitor and the distance d are changed in the opposite direction. Specifically, the relationship between the capacitance value of the capacitor and the distance d is shown as follows:
c ═ epsilon S/d; formula 1)
Where C represents a capacitance value of the capacitor, epsilon represents a relative dielectric constant, S represents a surface area of the outer ring of the device and the inner ring of the device, and d represents a distance between the outer ring of the device and the inner ring of the device. As can be seen from formula 1), when the distance d between the outer ring and the inner ring of the device is reduced, the capacitance value of the capacitor is correspondingly increased; and when the distance d between the outer ring and the inner ring of the device is increased, the capacitance value of the capacitor is correspondingly reduced.
In a preferred implementation manner of this embodiment, the vehicle speed control device further includes a voltage source and a main control chip; the voltage source is coupled with the capacitor and used for charging and discharging the capacitor; the main control chip is coupled with the capacitor and used for receiving the charging voltage data of the capacitor and outputting a corresponding vehicle speed control instruction according to the charging voltage data.
It is to be understood that the term "coupled" is to be interpreted as either a direct or indirect electrical connection. Accordingly, if one device is electrically connected to another device, that connection may be through a direct electrical connection or through an indirect electrical connection using other devices or connections.
To facilitate understanding by those skilled in the art, the description will now be made in conjunction with fig. 2. The capacitor C is externally connected to a voltage source Vu, which is connected to the capacitor C through a resistor R. Therefore, the value of the charging voltage of the capacitor C is calculated as follows:
wherein, VtThe voltage value of the capacitor at the time t is shown, R is the resistance value of the resistor, C is the capacitance value of the capacitor, and Vu is the rated voltage value of the voltage source. As can be seen from equation 2), when the capacitance value of the capacitor becomes smaller, the voltage value of the capacitor at the fixed time t becomes larger correspondingly; when the capacitance value of the capacitor becomes larger, the voltage value of the capacitor at the fixed time t becomes smaller correspondingly.
Optionally, the charging and discharging are performed by a fixed frequency RC circuit (i.e. a resistance-capacitance circuit), so as to obtain a fixed charging voltage value VtAnd can be combined with VtThe value is input to the main control chip, not shown, and the vehicle speed is controlled by the main control chip.
It should be noted that the main control chip of the present embodiment is, for example, an arm (advanced RISC machines) controller, an fpga (field Programmable Gate array) controller, a soc (system on chip) controller, a dsp (digital Signal processing) controller, or an mcu (micro controller unit) controller, and the present embodiment is not limited thereto.
In an implementation manner of this embodiment, the main control chip outputs a control instruction for making a vehicle speed change reversely with the charging voltage data according to the received charging voltage data of the capacitor; the speed of the controlled vehicle and the distance d between the inner ring and the outer ring of the device are changed in opposite directions.
Specifically, the charging voltage value of the capacitor and the vehicle speed are reversely changed, namely the main control chip controls the vehicle speed to reversely change along with the charging voltage value of the capacitor. In addition, as can be seen from the above equation 2), the charge voltage value and the capacitance value of the capacitor change in opposite directions, and as can be seen from the above equation 1), the capacitance value of the capacitor and the distance d between the inner ring and the outer ring of the device change in opposite directions. Therefore, the speed of the controlled vehicle and the distance between the inner ring and the outer ring of the device are changed reversely.
It should be noted that, in this implementation manner of this embodiment, the main control chip controls the vehicle speed to change inversely with the charging voltage value of the capacitor, and since the charging voltage value and the capacitance value of the capacitor change inversely and the capacitance value and the distance d change inversely, the vehicle speed and the distance d change inversely. Therefore, when the external force applied to the outer ring of the device by a user is larger, the deformation of the outer ring of the device is larger, the distance d between the outer ring of the device and the inner ring of the device is smaller, and the vehicle speed is larger; and when the external force applied to the outer ring of the device by a user is smaller, the deformation of the outer ring of the device is smaller, the distance d between the outer ring of the device and the inner ring of the device is larger, and the vehicle speed is slower. For convenience of understanding, taking a vehicle handle as an example, the more forcefully a user grips the handle, the larger the deformation of the outer ring of the device is, the smaller the distance between the inner ring and the outer ring of the handle is, and the faster the vehicle speed is; if the user looses the handle, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is slower. Therefore, in the implementation mode of the embodiment, the harder the user exerts the force, the faster the vehicle speed is, and the harder the user exerts the force, the slower the vehicle speed is, so that a good feedback system is formed, and the safety of a rider is greatly improved.
In another implementation manner of this embodiment, the main control chip outputs a control instruction for making a vehicle speed change in a positive direction along with the charging voltage data according to the received charging voltage data of the capacitor; namely, the main control chip controls the vehicle speed to become smaller as the distance d becomes smaller and become larger as the distance d becomes larger, and the vehicle speed of the controlled vehicle and the distance d between the device inner ring and the device outer ring are changed in a positive direction.
Specifically, the charging voltage value of the capacitor and the vehicle speed are changed in a positive direction, namely the main control chip controls the vehicle speed to change along with the charging voltage value of the capacitor in the positive direction. In addition, as can be seen from the above equation 2), the charge voltage value and the capacitance value of the capacitor change in opposite directions, and as can be seen from the above equation 1), the capacitance value of the capacitor and the distance d between the inner ring and the outer ring of the device change in opposite directions. Therefore, the speed of the controlled vehicle and the distance between the inner ring and the outer ring of the device are changed positively.
It should be noted that, in this implementation manner of this embodiment, the main control chip controls the vehicle speed to vary positively with the charging voltage value of the capacitor, and since the charging voltage value and the capacitance value of the capacitor vary reversely, and the capacitance value and the distance d vary reversely, the vehicle speed and the distance d vary positively. Therefore, when the external force applied to the outer ring of the device by a user is larger, the deformation of the outer ring of the device is larger, the distance d is smaller, and the vehicle speed is slower; and when the external force applied to the outer ring of the device by a user is smaller, the deformation of the outer ring of the device is smaller, the distance d is larger, and the vehicle speed is faster. For convenience of understanding, the vehicle handle is taken as an example, the more the user grabs the handle with force, the larger the deformation of the outer ring of the device is, the smaller the distance between the inner ring and the outer ring of the handle is, and the slower the vehicle speed is; if the user holds the handle looser, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is faster. Therefore, in the implementation mode of the embodiment, the vehicle speed is slower when the user applies more force, and the vehicle speed is faster when the user does not apply more force, the effect of the vehicle speed control mode is similar to that of a brake system, conditioned reflex of emergency braking can be better matched when the user meets special conditions, and therefore riding safety can be improved very well.
As can be seen from the above, the vehicle speed control device provided in this embodiment controls the vehicle speed by converting the external pressure into the voltage, so as to form an effective feedback system, thereby better protecting the safety of the rider.
Example two:
as shown in fig. 3, a schematic structural diagram of a vehicle speed control circuit in an embodiment of the invention is shown. The vehicle speed control circuit of the present embodiment includes a voltage source Vu, a resistor R, a capacitor C, an analog-to-digital conversion circuit (a/D conversion circuit), and a main control chip.
In the present embodiment, the capacitor C is equivalently formed by the inner ring, the deformable outer ring, and the charge storage medium filled between the inner and outer rings; the distance between the deformable outer ring and the inner ring is changed through deformation, the vehicle speed is changed along with the change of the distance between the inner ring and the outer ring, the implementation principle of the deformable outer ring is similar to that of the deformable outer ring, and therefore the implementation principle is not repeated.
It should be noted that, the main control chip in this embodiment may adopt an arm (advanced RISC machines) controller, an fpga (field Programmable Gate array) controller, an soc (system on chip) controller, a dsp (digital Signal processing) controller, or an mcu (micro controller unit) controller, and the present embodiment is not limited thereto.
One end of the voltage source Vu is grounded, and the other end of the voltage source Vu is connected with one end of the resistor R; the other end of the resistor R is connected with one end of the capacitor C; the other end of the capacitor C is grounded. The input end of the A/D conversion circuit is connected with the non-grounding end of the capacitor C and used for converting the charging voltage value of the capacitor C from an analog signal to a corresponding digital signal and then transmitting the digital signal to the input end of the main control chip. And the main control chip correspondingly controls the speed of the vehicle after receiving the charging voltage value of the capacitor C.
Optionally, the main control chip may control the vehicle speed to change in a reverse direction with the charging voltage value of the capacitor C; the speed of the controlled vehicle and the distance d between the inner ring and the outer ring of the device are changed in opposite directions.
Specifically, the charging voltage value of the capacitor and the vehicle speed are reversely changed, namely the main control chip controls the vehicle speed to reversely change along with the charging voltage value of the capacitor. In addition, as can be seen from equation 2) in the above embodiment, the charge voltage value and the capacitance value of the capacitor change in opposite directions, and as can be seen from equation 1) in the above embodiment, the capacitance value of the capacitor and the distance d between the inner ring and the outer ring of the device change in opposite directions. Therefore, the speed of the controlled vehicle and the distance between the inner ring and the outer ring of the device are changed reversely.
It should be noted that, in this implementation manner of this embodiment, the main control chip controls the vehicle speed to change inversely with the charging voltage value of the capacitor, and since the charging voltage value and the capacitance value of the capacitor change inversely and the capacitance value and the distance d change inversely, the vehicle speed and the distance d change inversely. Therefore, when the external force applied to the outer ring of the device by a user is larger, the deformation of the outer ring of the device is larger, the distance d is smaller, and the vehicle speed is larger; and when the external force applied to the outer ring of the device by a user is smaller, the deformation of the outer ring of the device is smaller, the distance d is larger, and the vehicle speed is slower. For convenience of understanding, taking a vehicle handle as an example, the more forcefully a user grips the handle, the larger the deformation of the outer ring of the device is, the smaller the distance between the inner ring and the outer ring of the handle is, and the faster the vehicle speed is; if the user looses the handle, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is slower. Therefore, in the implementation mode of the embodiment, the harder the user exerts the force, the faster the vehicle speed is, and the harder the user exerts the force, the slower the vehicle speed is, so that a good feedback system is formed, and the safety of a rider is greatly improved.
Optionally, the main control chip may control the vehicle speed to change positively with the charging voltage value of the capacitor C; namely, the main control chip controls the vehicle speed to become smaller as the distance d becomes smaller and become larger as the distance d becomes larger, and the vehicle speed of the controlled vehicle and the distance d between the device inner ring and the device outer ring are changed in a positive direction.
Specifically, the charging voltage value of the capacitor and the vehicle speed are changed in a positive direction, namely the main control chip controls the vehicle speed to change along with the charging voltage value of the capacitor in the positive direction. In addition, as can be seen from the formula 2) of the above embodiment, the charge voltage value and the capacitance value of the capacitor change in opposite directions, and as can be seen from the formula 1) of the above embodiment, the capacitance value of the capacitor and the distance d between the inner ring and the outer ring of the device change in opposite directions. Therefore, the speed of the controlled vehicle and the distance between the inner ring and the outer ring of the device are changed positively.
It should be noted that, in this implementation manner of this embodiment, the main control chip controls the vehicle speed to vary positively with the charging voltage value of the capacitor, and since the charging voltage value and the capacitance value of the capacitor vary reversely, and the capacitance value and the distance d vary reversely, the vehicle speed and the distance d vary positively. Therefore, when the external force applied to the outer ring of the device by a user is larger, the deformation of the outer ring of the device is larger, the distance d is smaller, and the vehicle speed is slower; and when the external force applied to the outer ring of the device by a user is smaller, the deformation of the outer ring of the device is smaller, the distance d is larger, and the vehicle speed is faster. For convenience of understanding, the vehicle handle is taken as an example, the more the user grabs the handle with force, the larger the deformation of the outer ring of the device is, the smaller the distance between the inner ring and the outer ring of the handle is, and the slower the vehicle speed is; if the user holds the handle looser, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is faster. Therefore, in the implementation mode of the embodiment, the vehicle speed is slower when the user applies more force, and the vehicle speed is faster when the user does not apply more force, the effect of the vehicle speed control mode is similar to that of a brake system, conditioned reflex of emergency braking can be better matched when the user meets special conditions, and therefore riding safety can be improved very well.
It can be known from the above that, the speed control circuit provided by the embodiment controls the speed of the vehicle by converting the external pressure into the voltage, so as to form an effective feedback system, and better protect the safety of the rider.
Example three:
referring to fig. 4, a flow chart of a vehicle speed control method according to an embodiment of the invention is shown. The vehicle speed control method of the present embodiment is applied to an arm (advanced RISC machines) controller, an fpga (field Programmable Gate array) controller, an soc (system on chip) controller, a dsp (digital Signal processing) controller, or an mcu (micro controller unit) controller, and the execution steps include S401 and S402.
In step S401, charging voltage data of the capacitor is acquired.
In step S402, outputting a corresponding vehicle speed control command according to the charging voltage data of the capacitor; the capacitor is formed by equivalently filling a charge storage medium between the inner ring, the deformable outer ring and the inner ring and the outer ring; the deformable outer ring changes a distance from the inner ring by deformation, and the vehicle speed changes with the change of the distance between the inner ring and the outer ring.
It should be understood that the capacitance equivalently formed by the inner ring, the deformable outer ring and the charge storage medium filled between the inner ring and the outer ring can be arranged on a handle of a controlled vehicle, the deformable outer ring is the handle outer ring, the inner ring is the handle outer ring, and when a user holds the handle, the device outer ring can be deformed by the gripping force of the hand, so that the distance between the device inner ring and the device outer ring is changed, and the vehicle speed is controlled. The vehicle speed control device is preferably sleeved on the handle, and the contact area of the vehicle speed control device and the hand is designed to be larger, so that the palm of a user can contact the vehicle speed control device when holding the handle, and the fingers and the palm of the user can exert force together to control the vehicle speed; of course, for cost reasons, the contact area between the vehicle speed control device and the hand may be designed to be small, so that the user can control the vehicle speed by using only a part of the fingers (such as the thumb and the index finger), and the embodiment is not limited thereto.
Besides, the capacitor of the invention can be arranged at other places except the handle. For example, the vehicle speed control device can be arranged on a pedal, and the outer ring of the device is deformed by the pressing force of the foot part, so that the vehicle speed is changed. For another example, the capacitor can be arranged on a lifting rod, so that the height of the capacitor can be adjusted up and down to match the height of the knees of a user, and the user can deform the deformable outer ring through the clamping force between the knees, so that the vehicle speed is changed.
In an implementation manner of this embodiment, the vehicle speed control command includes a control command for making the vehicle speed and the charging voltage value of the capacitor change in opposite directions; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner and outer rings are inversely changed.
It should be noted that, in this implementation manner of the present embodiment, when the external force applied to the deformable outer ring by the user is larger, the deformation of the deformable outer ring is larger, the distance d is smaller, and the vehicle speed is larger; and when the external force applied to the deformable outer ring by a user is smaller, the deformation of the deformable outer ring is smaller, the distance d is larger, and the vehicle speed is slower. For convenience of understanding, taking a vehicle handle as an example, the more forcefully a user grips the handle, the larger the deformation of the deformable outer ring is, the smaller the distance between the inner ring and the outer ring of the handle is, and the faster the vehicle speed is; if the user looses the handle, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is slower. Therefore, in the implementation mode of the embodiment, the harder the user exerts the force, the faster the vehicle speed is, and the harder the user exerts the force, the slower the vehicle speed is, so that a good feedback system is formed, and the safety of a rider is greatly improved.
In another implementation manner of this embodiment, the vehicle speed control command includes a control command that makes the vehicle speed and the charging voltage value of the capacitor change in a positive direction; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner and outer rings are inversely changed.
It should be noted that, in this implementation manner of this embodiment, when the external force applied to the deformable outer ring by the user is larger, the deformation of the deformable outer ring is larger, the distance d is smaller, and the vehicle speed is slower; and when the external force applied to the deformable outer ring by a user is smaller, the deformation of the deformable outer ring is smaller, the distance d is larger, and the vehicle speed is faster. For convenience of understanding, the vehicle handle is taken as an example, the more the user grabs the handle with force, the larger the deformation of the deformable outer ring is, the smaller the distance between the inner ring and the outer ring of the handle is, and the slower the vehicle speed is; if the user holds the handle looser, the distance between the inner ring and the outer ring of the handle is larger, and the vehicle speed is faster. Therefore, in the implementation mode of the embodiment, the vehicle speed is slower when the user applies more force, and the vehicle speed is faster when the user does not apply more force, the effect of the vehicle speed control mode is similar to that of a brake system, conditioned reflex of emergency braking can be better matched when the user meets special conditions, and therefore riding safety can be improved very well.
It should be understood that the implementation principle of the vehicle speed control method of the present embodiment is similar to that of the vehicle speed control device described above, and therefore, the detailed description thereof is omitted.
Example four:
fig. 5 is a schematic structural diagram of an electronic terminal according to an embodiment of the present invention. This example provides an electronic terminal, includes: a processor 51, a memory 52, a communicator 53; the memory 52 is connected to the processor 51 and the communicator 53 through the system bus and performs communication with each other, the memory 52 is used for storing computer programs, the communicator 53 is used for communicating with other devices, and the processor 51 is used for running the computer programs, so that the electronic terminal executes the steps of the above speed control method.
The above-mentioned system bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus. The communication interface is used for realizing communication between the database access device and other equipment (such as a client, a read-write library and a read-only library). The Memory may include a Random Access Memory (RAM), and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.
The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
Example five:
the present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the vehicle speed control method.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
In summary, the present application provides a vehicle speed control device, a circuit, a method, a medium, and a terminal, and the technical scheme provided by the present invention controls a vehicle speed by converting an external pressure into a voltage, so as to form an effective feedback system, thereby better protecting the safety of a rider. Therefore, the application effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (13)
1. A vehicle speed control device characterized by comprising:
an outer ring of the device;
the device inner ring is sleeved with the device outer ring; a cavity between the device inner ring and the device outer ring is filled with a charge storage medium so as to form a capacitor between the device inner ring and the device outer ring;
the outer ring of the device is a deformable outer ring, and the distance between the outer ring of the device and the inner ring of the device is changed through self deformation, so that the vehicle speed is changed.
2. The vehicle speed control device according to claim 1, characterized by further comprising:
the voltage source is coupled with the capacitor and used for charging and discharging the capacitor;
and the main control chip is coupled with the capacitor and used for receiving the charging voltage data of the capacitor and outputting a corresponding vehicle speed control instruction according to the charging voltage data.
3. The vehicle speed control device according to claim 2, wherein the main control chip outputs a control command for making a vehicle speed change in reverse direction with the charging voltage data, based on the received charging voltage data of the capacitor.
4. The vehicle speed control device according to claim 3, characterized in that the vehicle speed and the charging voltage value of the capacitor are changed in opposite directions, the charging voltage value of the capacitor and the capacitance value thereof are changed in opposite directions, and the capacitance value of the capacitor and the distance between the inner ring of the device and the outer ring of the device are changed in opposite directions.
5. The vehicle speed control device according to claim 2, wherein the main control chip outputs a control command for making a vehicle speed vary positively with the charging voltage data according to the received charging voltage data of the capacitor.
6. The vehicle speed control device according to claim 5, characterized in that the vehicle speed and the charging voltage value of the capacitor change in a forward direction, the charging voltage value of the capacitor and the capacitance value thereof change in a reverse direction, and the capacitance value of the capacitor and the distance between the inner ring of the device and the outer ring of the device change in a reverse direction.
7. The vehicle speed control device according to claim 1, wherein the charge storage medium filled in the cavity is soft rubber with metal powder.
8. A vehicle speed control circuit, characterized by comprising:
a voltage source, a first end of the voltage source being grounded;
the first end of the resistor is connected with the second end of the voltage source;
the first end of the capacitor is grounded, and the second end of the capacitor is connected with the second end of the resistor; the voltage source charges and discharges the capacitor through the resistor;
the input end of the analog-to-digital conversion circuit is connected with the second end of the capacitor and is used for performing analog-to-digital conversion on the voltage value of the capacitor;
the input end of the main control chip is connected with the output end of the analog-to-digital conversion circuit; the main control chip is used for outputting a corresponding vehicle speed control instruction according to the input charging voltage value of the capacitor;
the capacitor is equivalently formed by an inner ring, a deformable outer ring and a charge storage medium filled between the inner ring and the deformable outer ring; the deformable outer ring changes the distance between the deformable outer ring and the inner ring through deformation, and the vehicle speed changes along with the change of the distance between the deformable outer ring and the inner ring.
9. A vehicle speed control method characterized by comprising:
acquiring charging voltage data of a capacitor;
outputting a corresponding vehicle speed control instruction according to the charging voltage data of the capacitor;
the capacitor is equivalently formed by an inner ring, a deformable outer ring and a charge storage medium filled between the inner ring and the deformable outer ring; the deformable outer ring changes the distance between the deformable outer ring and the inner ring through deformation, and the vehicle speed changes along with the change of the distance between the deformable outer ring and the inner ring.
10. The vehicle speed control method according to claim 9, characterized in that the vehicle speed control command includes a control command for changing the vehicle speed and the charging voltage value of the capacitor in opposite directions; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner ring and the deformable outer ring are changed reversely.
11. The vehicle speed control method according to claim 9, characterized in that the vehicle speed control command includes a control command for positively varying the vehicle speed and the charging voltage value of the capacitor; the charging voltage value of the capacitor and the capacitance value of the capacitor are changed in a reverse direction; the capacitance value of the capacitor and the distance between the inner ring and the deformable outer ring are changed reversely.
12. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a vehicle speed control method according to any one of claims 9 to 11.
13. An electronic terminal, comprising: a processor and a memory;
the memory is used for storing a computer program;
the processor is configured to execute the computer program stored in the memory to cause the terminal to execute the vehicle speed control method according to any one of claims 9 to 11.
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| CN202010084263.0A CN111301593B (en) | 2020-02-10 | 2020-02-10 | Vehicle speed control device, circuit, method, medium, and terminal |
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| CN202010084263.0A CN111301593B (en) | 2020-02-10 | 2020-02-10 | Vehicle speed control device, circuit, method, medium, and terminal |
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| CN111301593B true CN111301593B (en) | 2021-06-08 |
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| CN111301593A (en) | 2020-06-19 |
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