CN113968203B - Method for continuously controlling acceleration and braking of motor vehicle by combined pedal - Google Patents
Method for continuously controlling acceleration and braking of motor vehicle by combined pedal Download PDFInfo
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- CN113968203B CN113968203B CN202111226145.XA CN202111226145A CN113968203B CN 113968203 B CN113968203 B CN 113968203B CN 202111226145 A CN202111226145 A CN 202111226145A CN 113968203 B CN113968203 B CN 113968203B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The application discloses a method for continuously controlling acceleration and braking of a motor vehicle by a combined pedal, which comprises the following steps: the gradual change process of continuously controlling the acceleration and the braking of the motor vehicle from the maximum top accelerating force of the upper accelerating stroke to the maximum bottom braking force of the lower braking stroke of the combined pedal is as follows: the method comprises the steps of maximum accelerating force, minimum accelerating force, zero braking force, minimum braking force and maximum braking force; the gradual change process of continuously controlling the braking and accelerating of the motor vehicle from the maximum bottom braking force of the lower braking stroke to the maximum top accelerating force of the upper accelerating stroke of the combined pedal is as follows: the acceleration force and the braking force can be continuously switched and controlled in the total stroke of the combined pedal from the process of maximum braking force, minimum braking force, zero acceleration force, minimum acceleration force and maximum acceleration force. The application has the characteristics of avoiding traffic accidents caused by mistakenly stepping on the accelerator pedal, and the like.
Description
Technical Field
The application relates to a method for continuously controlling acceleration and braking of a motor vehicle by using a combined pedal.
Background
With the tremendous development of economy, motor vehicles have become more popular. A brake pedal and an accelerator pedal are arranged in a cab of the motor vehicle; the brake pedal and the accelerator pedal are adjacent and independent of each other. Common methods of operation are: one is a method for controlling the acceleration and braking of a motor vehicle by an accelerator pedal and a brake pedal; another is a method for controlling the acceleration and braking of a motor vehicle by an acceleration and kinetic energy recovery pedal and a brake pedal.
The first method for controlling the acceleration and braking of a motor vehicle by using an accelerator pedal and a brake pedal has the following problems:
(1) When the motor vehicle adopting the control method runs, a driver needs to: a. the method for controlling the acceleration and the braking of the motor vehicle can only control one pedal at a time, and can not continuously control the acceleration and the braking of the motor vehicle.
(2) When the foot is positioned on the accelerator pedal and emergency braking is needed in emergency, the foot must be moved from the accelerator pedal to the brake pedal to downwards step on the brake pedal for braking, and in the process, the time required for moving the foot from the accelerator pedal to the brake pedal can indirectly increase the braking distance of the motor vehicle. When the foot is on the brake pedal and emergency acceleration is needed, the foot must be moved from the brake pedal to the accelerator pedal to step down on the accelerator pedal for acceleration, and in this process, the time required for moving the foot from the brake pedal to the accelerator pedal can indirectly increase the acceleration time of the motor vehicle, so it can be seen that the control method can indirectly increase the braking distance or the acceleration time of the motor vehicle.
(3) The acceleration direction of the independent accelerator pedal is to increase the acceleration force downwards; the braking direction of the independent brake pedal is downward to increase the braking force, and the control directions of the two independent pedals are downward, so that under emergency conditions, the situation that the brake pedal is to be stepped on to brake and the accelerator pedal is to be stepped on by mistake or the situation that the accelerator pedal is to be stepped on to accelerate and the brake pedal is to be stepped on by mistake can occur, and the control method can generate the same-direction mistaken stepping.
The second is the problem of the method of controlling the acceleration and braking of the motor vehicle by the acceleration and kinetic energy recovery pedal and the brake pedal:
(1) The method for controlling the acceleration and the braking of the motor vehicle by adopting the acceleration and kinetic energy recovery mode pedal and the independent braking pedal has the same acceleration direction and the braking direction which are downward, so that the control directions of the pedals with different functions are the same, and the accident of stepping on the pedals in the same direction by mistake can occur in emergency.
(2) The direction of accelerating reset (or kinetic energy recovery, similar to braking effect) is upward and the braking direction is downward, so that the pedal control directions of two identical functions are opposite, and under emergency, misjudgment can be generated, and the accident of stepping on the pedal in the same direction by mistake can occur.
(3) The acceleration and the braking of the device are not continuously controllable, and the acceleration reset (or kinetic energy recovery) direction and the braking direction are opposite and are not continuously controllable.
It can be seen that both methods have their own drawbacks, and a method for continuously controlling acceleration and braking of a motor vehicle is needed to address such problems.
Disclosure of Invention
The application aims at overcoming the defects of the prior art and provides a method for continuously controlling acceleration and braking of a motor vehicle by combining pedals.
In order to achieve the above object of the present application, the following technical scheme is adopted:
a method of continuously controlling acceleration and braking of a motor vehicle with a combination pedal, the method comprising: the combined pedal is continuously switched up and down in a total stroke of acceleration and braking of the motor vehicle to control the acceleration and braking of the motor vehicle; the total stroke comprises an upper acceleration stroke and a lower braking stroke; the combined pedal continuously switches and controls the change of the accelerating force and the braking force of the motor vehicle in the total stroke, namely, the combined pedal can stop at any point in the total stroke or continuously switches and controls the acceleration and the braking of the motor vehicle in any section of the range; wherein, the gradual change process of the combined pedal from the maximum top accelerating force of the upper accelerating stroke to the maximum bottom braking force of the lower braking stroke is that the continuous control motor vehicle accelerates and brakes is as follows: the method comprises the steps of maximum accelerating force, minimum accelerating force, zero braking force, minimum braking force and maximum braking force; the gradual change process of continuously controlling the braking and accelerating of the motor vehicle from the maximum bottom braking force of the lower braking stroke to the maximum top accelerating force of the upper accelerating stroke of the combined pedal is as follows: the method comprises the steps of maximum braking force, minimum braking force, zero accelerating force, minimum accelerating force and maximum accelerating force; the acceleration force and the braking force are continuously switched to each other in the total stroke of the combination pedal.
As a further improvement of the technical scheme, the normal state of the combined pedal is arranged at the joint of the upper acceleration stroke and the lower braking stroke and is in a state that the acceleration force is zero and the braking force is zero; in the control process, when a foot leaves the combined pedal, the combined pedal automatically resets to a normal state.
As a further improvement of the technical proposal, the combined pedal realizes the upward acceleration and the downward resetting in the upper acceleration stroke, and an auxiliary device for lifting the combined pedal upward in the upper acceleration stroke is needed; in the range of the total travel, when the foot is stepped on the combined pedal, the auxiliary device gives the combined pedal an upward force in the upper acceleration travel, under the action of the upward force, when the foot moves upward, the combined pedal moves upward from a normal state to a position with the maximum top acceleration force of the upper acceleration travel along with the foot synchronization, and the gradual change process of the acceleration of the motor vehicle is continuously controlled by the combined pedal: from zero braking force to zero accelerating force to minimum accelerating force to maximum accelerating force; when the foot leaves the combined pedal, the auxiliary device provides a force for automatically resetting downwards to a state that the braking force is zero and the accelerating force is zero for the combined pedal, and the combined pedal automatically resets to a state that the braking force is zero and the accelerating force is zero.
As a further improvement of the technical scheme, the method for continuously controlling the acceleration and the braking of the motor vehicle by the combined pedal is added with a brake pedal to form a control mode of combining the combined pedal and the brake pedal. In addition to the continuous switching control of the motor vehicle acceleration and braking by using the combined pedal, the control mode can also control the motor vehicle acceleration by using the combined pedal and control the motor vehicle braking by using the brake pedal under special conditions like the currently adopted control mode of the accelerator pedal and the brake pedal.
As a further improvement of the technical scheme, the auxiliary device comprises a tact switch, a push-pull electromagnet, a sliding block and a spring; the push-pull electromagnet is provided with a telescopic sliding block; the combined pedal is provided with a tact switch; one end of the spring is connected with the sliding block, and the other end of the spring is connected with the combined pedal; wherein, push-pull electromagnet is connected with dab the switch electricity.
As a further improvement of the technical scheme, the tact switch is provided with a tact switch panel, and the tact switch panel is covered on the combined pedal and is used for judging whether the combined pedal is touched by feet.
As a further improvement of the technical solution, the width of the tact switch panel is equal to the width of the combination pedal.
As a further improvement of the technical scheme, the auxiliary device comprises any one of a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
As a further improvement of the technical proposal, the width of the combined pedal is equal to the sum of the panel width of the existing single brake pedal, the panel width of the single accelerator pedal and the distance between the brake pedal and the accelerator pedal.
As a further improvement of the technical scheme, the existing acceleration control assembly is turned up and down by 180 degrees, and the upper acceleration stroke of the combined pedal is realized without changing the other components.
The working principle of the application is as follows:
the total stroke of the combined pedal consists of an upper acceleration stroke and a lower braking stroke; changing the braking stroke of the braking pedal to the lower braking stroke of the total stroke of the combined pedal; the acceleration stroke of the accelerator pedal is changed into the upper acceleration stroke of the total stroke of the combined pedal, and in the process, the existing acceleration control assembly of the accelerator pedal is turned up and down for 180 degrees, namely, the downward acceleration stroke is changed into the acceleration direction of gradually increasing the acceleration force, and the upward acceleration stroke of the upper part of the combined pedal is changed into the acceleration direction of gradually increasing the acceleration force. The normal position of the combined pedal is in a state that the acceleration force is zero and the braking force is zero at the joint of the upper acceleration stroke and the lower braking stroke; during the control process, the combined pedal automatically resets to the normal state (detailed in figure 1) as soon as the foot leaves the combined pedal; thus, the application combines the methods of controlling the acceleration and the braking of the motor vehicle by the accelerator pedal and the brake pedal into a method of continuously controlling the acceleration and the braking of the motor vehicle by the combined pedal. The present acceleration control assembly of the accelerator pedal comprises a fuel motor vehicle acceleration control assembly and a new energy motor vehicle acceleration control assembly, wherein the fuel motor vehicle acceleration control assembly can only realize an acceleration function, the new energy motor vehicle acceleration control assembly can realize an acceleration and kinetic energy recovery function, the actual control methods of the two control assemblies are the same, and the present application is uniformly described according to the control method of the fuel motor vehicle for convenience of description.
Control principle: the combined pedal gradually increases braking force from normal downward and gradually increases accelerating force from normal upward; the combined pedal is in an acceleration state or a braking state, and continuously downwards gradually increases the braking force and continuously upwards gradually increases the acceleration force; the accelerating force and the braking force can be continuously switched and controlled in the total stroke of the combined pedal; the combined pedal automatically resets to the normal state as soon as the foot leaves the combined pedal.
Compared with the prior art, the application has obvious progress:
1. compared with a control method adopting an accelerator pedal and a brake pedal, the combined pedal control method has the following beneficial effects:
(1) According to the application, only one combined pedal is used, the accelerator pedal and the brake pedal are not required to be distinguished from each other left and right, and the combined pedal is not required to be moved back and forth between the two pedals, so that the acceleration and the braking of the motor vehicle can be continuously controlled only by switching back and forth up and down, and the motor vehicle can be controlled more simply and conveniently; the direction of the gradually increasing acceleration force of the combined pedal is upward, and the direction of the gradually increasing braking force is downward, and the two opposite control directions avoid the accident of mistakenly stepping on the acceleration pedal to accelerate in emergency;
(2) The braking direction of the combined pedal is the same as that of the existing braking pedal, so that the driving habit of drivers who adopt different pedal motor vehicles is reserved, and the combined pedal is easier to adapt to the drivers;
(3) The accelerating force increasing direction of the combined pedal is upward, and the braking increasing direction is downward; the current acceleration direction of the accelerator pedal is downward, the braking direction of the brake pedal is also downward, and the two same control directions can cause the situation that the accelerator pedal is mistakenly stepped to accelerate when the brake pedal is stepped to carry out emergency braking under emergency conditions, so that accidents are caused; however, the acceleration force increasing direction of the combined pedal is opposite to that of the existing accelerator pedal, and even if the downward error combined pedal occurs, the braking force is increased, so that the motor vehicle brakes and decelerates, and the accident of mistakenly stepping on the accelerator pedal can be avoided;
(4) According to the application, only one combined pedal is used, so that the accelerator pedal and the brake pedal are not required to be distinguished, and therefore, the time for moving feet back and forth between two independent pedals and distinguishing the pedals left and right can be compressed to zero, and the reaction time for controlling the acceleration or the brake of the motor vehicle is reduced; therefore, when emergency braking is needed, only the combined pedal is needed to be stepped down, and the motor vehicle is decelerated, so that the distance between acceleration and braking of the motor vehicle can be indirectly reduced;
(5) Compared with the existing accelerator pedal and brake pedal, the application only changes the acceleration direction and the resetting direction of the accelerator pedal, and other parts are not changed, so the application has low changing cost, high cost performance and easy realization.
2. Compared with the control method adopting an acceleration pedal and a kinetic energy recovery pedal and a brake pedal, the control method of the combined pedal and the brake pedal has the following beneficial effects:
(1) The acceleration and braking directions of the combined pedal are opposite, the acceleration reset (or the effect similar to braking of kinetic energy recovery) direction and the braking direction are the same, so that the pedal control directions of two different functions are opposite, the pedal control directions of two same functions are the same, and the accident of stepping on the pedal by mistake in the same direction can not be generated in emergency;
(2) The acceleration and braking of the combined pedal can be continuously controlled, and the acceleration resetting (or kinetic energy recovery) direction and the braking direction are the same and can be continuously controlled.
3. The normal state of the combined pedal is in a state of minimizing acceleration and braking force at the joint of the acceleration stroke and the braking stroke; the combined pedal swings upwards in a normal state, so that acceleration is realized; the combined pedal swings downwards in a normal state, so that braking is realized; the combined pedal continuously swings upwards through the end point of the braking stroke, so that the braking force is reduced, the accelerating force is gradually increased, and the acceleration of the automobile is realized; conversely, when the combined pedal continuously swings downwards from the end point of the acceleration stroke, the acceleration force is reduced, the braking force is increased, and the automobile is decelerated; therefore, when dangerous situations are met and acceleration is needed to avoid, the driver subconsciously presses down the presser foot, braking and decelerating are realized, and the risk of flying out of the motor vehicle caused by stepping down the accelerator pedal by mistake is avoided.
4. The application can realize the mutual continuous conversion between acceleration and braking, and the foot of a driver only needs to control one pedal, thus avoiding the foot on the existing motor vehicle from moving back and forth between the acceleration pedal and the braking pedal, saving the time for moving back and forth between the acceleration pedal and the braking pedal, reducing the reaction time for controlling the acceleration or the braking of the motor vehicle, indirectly reducing the acceleration and the braking distance of the motor vehicle and being beneficial to improving the acceleration and the braking performance of the motor vehicle.
5. The application can continuously switch between the acceleration stroke and the braking stroke, is beneficial to realizing the switching between acceleration and braking by one combined pedal, avoids the need of foot swing control when switching between the existing automobile accelerator pedal and the existing automobile brake pedal, can effectively avoid mistakenly stepping on the accelerator pedal, and reduces the occurrence of accidents caused by mistakenly stepping on the accelerator pedal.
6. The single pedal is connected with the auxiliary device, the auxiliary device can give upward lifting force to the single pedal, and the single pedal can be controlled to move upwards by slightly lifting the foot; the auxiliary device can also enable the single pedal to return to a normal state when the foot is disengaged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a method of continuously controlling acceleration and braking of a motor vehicle with a combination pedal in accordance with the present application;
FIG. 2 is a schematic diagram of a normal state in which the combination pedal is not stepped on by a foot leaving the combination pedal tact switch, the tact switch is turned off, the push-pull electromagnet is powered off and reset, the spring is shortened and reset, and the combination pedal is reset to the normal state;
FIG. 3 is a schematic illustration of a foot on a combination pedal, the foot on a combination pedal tact switch, the tact switch closed, a push-pull electromagnet energized to lengthen a spring, the spring providing a force to the combination pedal to move upward to the top of an upper acceleration stroke;
FIG. 4 is a schematic diagram of the continuous control of the combination pedal during the lower braking stroke, the foot is stepped on the combination pedal tact switch, the tact switch is closed, the push-pull electromagnet is energized to lengthen the spring, the spring provides a force for the combination pedal to move upwards to the top of the upper acceleration stroke, and the combination pedal moves from a normal state to the position with the maximum braking force of the lower braking stroke or moves back and forth during the lower braking stroke, wherein the movement stroke of the foot is controlled;
FIG. 5 is a schematic diagram of the continuous control of the combination pedal during the upper acceleration stroke, the foot is stepped on the combination pedal tact switch, the tact switch is closed, the push-pull electromagnet is energized to lengthen the spring, the spring provides a force for the combination pedal to move upwards to the top of the upper acceleration stroke, and the combination pedal moves from a normal state to the position with the maximum acceleration force of the upper acceleration stroke or moves back and forth during the upper acceleration stroke by how much of the stroke is controlled by the stroke of the foot;
FIG. 6 is a schematic diagram of a combination pedal continuously controlled over a total stroke, a foot operated combination pedal tact switch is closed, a push-pull electromagnet is energized to lengthen a spring, the spring provides a force to the combination pedal to move upward to the top of the upper acceleration stroke, the combination pedal moves from the maximum acceleration force of the upper acceleration stroke to the maximum braking force of the lower braking stroke or how much of the back and forth movement of the combination pedal over the total stroke is controlled by the movement stroke of the foot;
the names and serial numbers of the components in the figure are as follows: 1-push-pull electromagnet, 11-slider, 2-spring, 3-combination pedal, 4-tact switch.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described with reference to the accompanying drawings and examples, and it is apparent that the described examples are only a part of examples of the present application, and all other examples obtained by those skilled in the art without making any inventive effort are intended to be within the scope of the present application.
According to the control schematic diagram (see fig. 1 in detail) of the application, three colors of red, yellow and green are allocated for quicker understanding of the schematic diagram, the green represents acceleration, the red represents braking, and the yellow represents a state of neither acceleration nor braking, and the schematic diagram is respectively marked as follows from top to bottom: the upper acceleration stroke, the minimum acceleration force and the maximum acceleration force are green; the middle acceleration force is zero and the braking force is zero (normal state) is yellow; the lower brake stroke, brake force minimum, brake force maximum is red.
Example 1:
as shown in fig. 1-6, a method for continuously controlling acceleration and braking of a motor vehicle with a combination pedal, the method comprising: the total stroke of the combined pedal comprises an upper acceleration stroke and a lower braking stroke; the combined pedal continuously controls the change of the acceleration and the braking of the motor vehicle in the total stroke, namely, the combined pedal can be stopped at any point in the total stroke or can be continuously switched and controlled in any section of range in the total stroke; wherein, the gradual change process of the combined pedal from the maximum top accelerating force of the upper accelerating stroke to the maximum bottom braking force of the lower braking stroke is that the continuous control motor vehicle accelerates and brakes is as follows: the method comprises the steps of maximum accelerating force, minimum accelerating force, zero braking force, minimum braking force and maximum braking force; the gradual change process of continuously controlling the braking and accelerating of the motor vehicle from the maximum bottom braking force of the lower braking stroke to the maximum top accelerating force of the upper accelerating stroke of the combined pedal is as follows: the method comprises the steps of maximum braking force, minimum braking force, zero accelerating force, minimum accelerating force and maximum accelerating force; the acceleration force and the braking force are continuously switched to each other in the total stroke of the combination pedal.
Example 2:
compared with example 1, the difference is that: in order to facilitate the arrangement of balance points in the total stroke, a normal state is additionally arranged.
The normal state of the combined pedal is set at the joint of the upper accelerating stroke and the lower braking stroke and is in a state that the accelerating force is zero and the braking force is zero; in the control process, when a foot leaves the combined pedal, the combined pedal automatically resets to a normal state.
Example 3:
compared with the embodiment 1 or 2, the difference is that: in order to be able to give the combined pedal an upward lifting force and automatically return downwards, an auxiliary device is used.
As shown in fig. 2-6, the combined pedal achieves upward acceleration and downward resetting in the upper acceleration stroke, and an auxiliary device for lifting the combined pedal upward in the upper acceleration stroke is needed; in the range of the total travel, when the foot is stepped on the combined pedal, the auxiliary device gives the combined pedal an upward force in the upper acceleration travel, under the action of the upward force, when the foot moves upward, the combined pedal moves upward from a normal state to a position with the maximum top acceleration force of the upper acceleration travel along with the foot synchronization, and the gradual change process of the acceleration of the motor vehicle is continuously controlled by the combined pedal: from zero braking force to zero accelerating force to minimum accelerating force to maximum accelerating force; when the foot leaves the combined pedal, the auxiliary device provides a force for automatically resetting downwards to a state that the braking force is zero and the accelerating force is zero for the combined pedal, and the combined pedal automatically resets to a state that the braking force is zero and the accelerating force is zero.
Example 4:
compared with example 3, the difference is that: a construction of the auxiliary device is given.
As shown in fig. 2-6, the auxiliary device comprises a tact switch, a push-pull electromagnet, a sliding block and a spring; the push-pull electromagnet is provided with a telescopic sliding block; the pedal is provided with a tact switch; one end of the spring is connected with the sliding block, and the other end of the spring is connected with the combined pedal; wherein, push-pull electromagnet is connected with dab the switch electricity.
The auxiliary device works in the following manner:
the foot touches the tact switch 4 on the combined pedal 3, the sliding block 11 of the push-pull electromagnet 1 stretches the spring 2 while retracting, the spring 2 elastically deforms and has elastic deformation acting force, and the spring 2 has upward lifting force on the combined pedal 3 through the elastic deformation acting force; the foot is lifted lightly, and the combined pedal swings upwards along with the foot under the pulling action of the spring, so that the acceleration force is increased gradually; after the combined pedal swings upwards, the combined pedal can be pressed downwards, and the combined pedal swings downwards, so that the accelerating force is reduced, and the braking force is gradually increased.
When the pedal rises to the maximum accelerating force, at the moment, the foot is separated from the combined pedal, the tact switch 4 is disconnected, the sliding block 11 extends out of the push-pull electromagnet, and the spring pushes the combined pedal and the combined pedal to reset to a normal state by self gravity.
Example 5:
compared with example 4, the difference is that: a set structural form of the tact switch is given.
The touch switch is provided with a touch switch panel, and the touch switch panel is covered on the combined pedal and is used for judging whether the combined pedal is touched by feet.
Example 6:
compared with example 5, the difference is that: a width definition of a tact switch panel is given.
The width of the tact switch panel is equal to the width of the combination pedal. The foot of the driver can be effectively trampled on the tact switch when the motor vehicle is driven.
Example 7:
compared with example 3, the difference is that: the auxiliary device comprises any one of a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
Example 8:
the difference compared to any of examples 1-7 is that: a structural form of the combination pedal is given.
The width of the combined pedal is equal to the sum of the panel width of the existing single brake pedal, the panel width of the single accelerator pedal and the distance between the brake pedal and the accelerator pedal. The width of the pedal panel is taken into consideration, so that a driver can easily tread on a single pedal no matter where the foot is.
The working mode of the application is as follows:
the total stroke of the combined pedal for continuously controlling the acceleration and the braking of the motor vehicle is divided into: an upper acceleration stroke and a lower braking stroke. The normal state of the combined pedal is arranged at the joint of the upper acceleration stroke and the lower braking stroke and is in a state that the acceleration force is zero and the braking force is zero (detailed figure 1); during the control process, the foot automatically resets to the normal state (detailed in fig. 2) as soon as the foot leaves the combination pedal.
Embodiments of the combined pedal lower brake stroke of the present application:
the lower braking stroke of the combined pedal can be realized by using the lower braking stroke of the combined pedal to replace the braking stroke of the braking pedal to control the original braking control component of the motor vehicle. The control principle, control method, control assembly and the like of the lower braking stroke of the combined pedal are the same as those of the braking pedal, and the combined pedal is in a direction of increasing the braking force of the lower braking stroke in a normal downward direction. The lower braking stroke of the combined pedal is from the normal state of the combined pedal to the position of the maximum bottom braking force of the lower braking stroke, and the lower braking stroke continuously controls the motor vehicle to brake in the following changing process: the magnitude of the braking force can be continuously controlled in the lower braking stroke of the combined pedal from the process of zero accelerating force, zero braking force (normal state), minimum braking force and maximum braking force. (see FIG. 4 for details).
Embodiments of the combined pedal upper acceleration stroke of the present application:
the upper acceleration stroke of the combined pedal is used for replacing the acceleration stroke of the accelerator pedal to control the original acceleration control assembly of the motor vehicle, so that the control direction of the original acceleration control assembly is changed from downward acceleration to upward resetting to the control direction of the upper acceleration stroke of the combined pedal: the upper acceleration and the lower acceleration are reset, namely the acceleration control assembly is turned up and down by 180 degrees, and the upper acceleration stroke of the combined pedal can be realized without changing the other components.
The combined pedal is in a normal upward direction of the accelerating force increased by the upper accelerating stroke; the upper accelerating stroke of the combined pedal is from the normal state of the combined pedal to the maximum top accelerating force of the upper accelerating stroke, and continuously controls the change process of the acceleration of the motor vehicle to be as follows: the magnitude of the acceleration force can be continuously controlled in the upper acceleration stroke of the combination pedal from the process of zero braking force, zero acceleration force (normal state), minimum acceleration force and maximum acceleration force. (see FIG. 5 for details).
To realize the control process that the upper acceleration stroke of the combined pedal is upward acceleration and the lower acceleration stroke is downward reset, an auxiliary device for upward lifting the upper acceleration stroke of the combined pedal is arranged, and the auxiliary device has the main functions that: in the total travel range, when the foot is stepped on the combined pedal, the combined pedal can provide an upward force for the upper acceleration travel of the combined pedal, under the action of the upward force, when the foot moves upwards, the combined pedal can also move from a normal state upwards to the position of the maximum top acceleration force of the upper acceleration travel synchronously with the foot, and the gradual change process of the combined pedal for continuously controlling the acceleration of the motor vehicle is as follows: from zero braking force-zero acceleration force-zero (normal state) -minimum acceleration force-maximum acceleration force (see figure 5 for details); when the foot leaves the combined pedal, the combined pedal can provide an automatic downward reset force to the normal state, so that the combined pedal can be automatically reset to the normal state (see figure 2 for details).
The auxiliary device for upward lifting and downward resetting of the upper acceleration stroke of the combined pedal consists of a tact switch, a tact switch panel, a spring expansion control device and a spring (see fig. 2 and 3 for details). The spring tension control device can be selected according to the original conditions of different motor vehicles: :
a, a motor vehicle with compressed air can select an upward lifting and downward resetting auxiliary device controlled pneumatically;
b, a motor vehicle with hydraulic control conditions can select an upward lifting and downward resetting auxiliary device controlled by hydraulic pressure;
and c, an electric control motor vehicle can select an electric control lifting and resetting auxiliary device.
Panel length reference value for combination pedal:
the width of the pedal panel=the width of the accelerator pedal panel+the width of the brake pedal panel+the distance between the two pedals, and the width of the pedal panel considers the driving habit of a driver, so that the foot can easily tread on the tact switch of the combined pedal no matter which position is stepped on.
For convenience of description, the application combines the spring expansion control device of the auxiliary device for upward lifting and downward resetting of the upper acceleration stroke of the pedal, and the specific implementation mode is described in detail by a push-pull electromagnet in a unified way:
the working mode between the electric control combined pedal and the auxiliary device for upward lifting and downward resetting of the upper accelerating stroke is as follows:
a touch switch panel of a combined pedal: the width of the touch switch panel of the combined pedal is the same as that of the combined pedal, and the main functions of the touch switch panel are as follows: when a foot is stepped on the panel, the tact switch is closed, and the push-pull electromagnet is electrified to lengthen the spring (detailed figure 3); when the foot leaves the panel, the tact switch is disconnected, the push-pull electromagnet is powered off, the push-pull electromagnet automatically resets, and the spring resets (detailed figure 2); the tact switch mainly judges whether the foot is in a push or pull state by controlling the combined pedal and the push-pull electromagnet.
And b, the push-pull electromagnet mainly controls the extension and the reset of a spring lifted upwards by the upper acceleration stroke of the combined pedal according to the closing and opening of the tact switch panel.
And c, controlling a spring for upwards lifting the upper acceleration stroke of the combined pedal, wherein the spring mainly provides an upward force for the upper acceleration stroke of the combined pedal by stretching of a push-pull electromagnet, and under the action of the upward force, the combined pedal can synchronously move upwards with the foot when the foot moves upwards, so that the acceleration process (detailed figure 5) of the motor vehicle from zero acceleration force to zero (normal state), minimum acceleration force and maximum acceleration force is continuously controlled.
Specific implementation of the upper acceleration stroke of the combined pedal:
a when a foot is stepped on any position on the panel of the tact switch, the tact switch is closed, the push-pull electromagnet is electrified, the sliding block on the tact switch is contracted inwards, so that the sliding block stretches a spring for controlling the upper acceleration stroke of the combined pedal to lift upwards, the spring can provide an upward force for the upper acceleration stroke of the combined pedal (detailed figure 3), and under the action of the upward force, the combined pedal can also be synchronous upwards with the foot when the foot is upward, and the process of the motor vehicle from minimum acceleration force to maximum acceleration force (detailed figure 5) is controlled.
And b, when the foot leaves the touch switch panel of the combined pedal, the touch switch is disconnected, the sliding block outwards slides out after the push-pull electromagnet is powered off, the external force applied to the spring for controlling the upward lifting of the upper acceleration stroke of the combined pedal is eliminated, the spring elastically retracts to the normal length, and the combined pedal is automatically reset to the normal state (detailed figure 2).
The combined pedal continuously controls a total stroke of the acceleration and the braking of the motor vehicle, wherein the continuous control from top to bottom is from the maximum accelerating force of the top of the upper acceleration stroke to the maximum braking force of the bottom of the lower braking stroke, and the continuous control of the change process of the acceleration and the braking of the motor vehicle comprises the following steps: the method comprises the steps of maximum acceleration force, minimum acceleration force, zero braking force, minimum braking force and maximum braking force; the continuous control from bottom to top is from the position with the largest braking force at the bottom of the lower braking stroke to the position with the largest accelerating force at the top of the upper accelerating stroke, and the continuous control of the combined pedal comprises the following steps of: the process of maximum braking force, minimum braking force, zero accelerating force with zero braking force, minimum accelerating force and maximum accelerating force. The acceleration and braking forces are continuously switchable during the total travel of the combined pedal (detailed in fig. 6).
Example 9:
the difference compared to any of examples 1-8 is that: for applications where simultaneous acceleration and braking use is required, a brake pedal is added.
The brake pedal and the combined pedal form a control mode of the combined pedal and the brake pedal. In addition to the continuous switching control of the motor vehicle acceleration and braking by using the combined pedal, the control mode can also control the motor vehicle acceleration by using the combined pedal and control the motor vehicle braking by using the brake pedal under special conditions like the currently adopted control mode of the accelerator pedal and the brake pedal.
The combined pedal and brake pedal control mode of the application:
according to the mode of controlling the motor vehicle by the accelerator pedal, the brake pedal (or the accelerator and kinetic energy recovery pedal and the brake pedal) adopted at present, the accelerator pedal (or the accelerator and kinetic energy recovery pedal) is changed into a combined pedal, the control points of the brake assembly are changed into two from one, one is controlled by the brake pedal, and the other is controlled by the combined pedal, so that the mode of controlling the motor vehicle by the combined pedal and the brake pedal is changed; in addition to the continuous switching control of the motor vehicle acceleration and braking by using the combined pedal (in detail, fig. 6, the panel length of the combined pedal is the same as that of the accelerator pedal), the control mode can also be used for controlling the motor vehicle acceleration by using the combined pedal and controlling the motor vehicle braking by using the brake pedal under special conditions like the currently adopted accelerator pedal and brake pedal control mode. In addition, when the control mode of the accelerator pedal and the brake pedal is changed into the combined pedal control mode, the method can also provide old and new adaptation engineering for a driver, and plays a role in excessive buffering.
Example 1 a special case of a half-hill start and a parking brake failure for an automatic transmission vehicle: the first step of right heel is stepped on the brake pedal, and the second step is to press the start switch, and the gear is put into the forward gear, and the third step of right toe control combination footboard is upwards accelerated simultaneously, slowly loosens the brake pedal of right heel control, just so can half slope start.
Example 2 a special case of manual gear motor vehicle hill start and parking brake failure: the first step of right heel steps on the brake pedal, and the second step hangs the neutral gear, presses the start switch, and left foot steps on the clutch, hangs 1 fender, and the third step of right toe control accelerator pedal is upwards accelerated simultaneously, slowly releases left foot control's clutch and right heel control's lower floor brake pedal, just so can half-hill start.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being within the scope of the application, obvious variations or modifications may be made thereto.
Claims (8)
1. A method for continuously controlling acceleration and braking of a motor vehicle with a combination of pedals, the method comprising:
the combined pedal is continuously switched up and down in a total stroke of acceleration and braking of the motor vehicle to control the acceleration and braking of the motor vehicle; the total stroke comprises an upper acceleration stroke and a lower braking stroke;
the combined pedal continuously switches and controls the change of the accelerating force and the braking force of the motor vehicle in the total stroke, namely, the combined pedal can stop at any point in the total stroke or continuously switches and controls the acceleration and the braking of the motor vehicle in any section of the range;
the combined pedal realizes upward acceleration and downward resetting in the upper acceleration stroke, and an auxiliary device for lifting the combined pedal upward in the upper acceleration stroke is needed; the auxiliary device comprises a tact switch, a push-pull electromagnet, a sliding block and a spring; the push-pull electromagnet is provided with a telescopic sliding block; the combined pedal is provided with a tact switch; one end of the spring is connected with the sliding block, and the other end of the spring is connected with the combined pedal; the push-pull electromagnet is electrically connected with the tact switch; and
adding a brake pedal, changing the control points of a motor vehicle brake assembly from one to two, wherein one is controlled by the brake pedal and the other is controlled by the combined pedal;
wherein, the liquid crystal display device comprises a liquid crystal display device,
the working mode of the combined pedal is as follows: the combined pedal is stepped on by feet, a tact switch on the combined pedal is closed, a sliding block of the push-pull electromagnet is retracted, and simultaneously, the spring is stretched, and elastically deforms to have elastic deformation acting force, and the spring has upward lifting force on the combined pedal through the elastic deformation acting force;
at this moment, the foot moves upwards, the combined pedal moves upwards along with the foot under the pulling action of the spring, and the gradual change process for continuously controlling the acceleration of the motor vehicle is as follows: zero acceleration force, minimum acceleration force and maximum acceleration force; after the combined pedal moves upwards to the maximum acceleration force, the combined pedal can continuously move downwards, and the gradual change process of the acceleration and the braking of the motor vehicle is continuously controlled by the combined pedal: the method comprises the steps of maximum accelerating force, minimum accelerating force, zero braking force, minimum braking force and maximum braking force; after the combined pedal runs downwards to the maximum braking force, the combined pedal can continuously move upwards, and the gradual change process of continuously controlling the braking and the acceleration of the motor vehicle is as follows: the process of maximum braking force, minimum braking force, zero accelerating force, minimum accelerating force and maximum accelerating force.
2. The method for continuously controlling acceleration and braking of a motor vehicle with a combination pedal according to claim 1, wherein:
the normal state of the combined pedal is set at the joint of the upper accelerating stroke and the lower braking stroke and is in a state that the accelerating force is zero and the braking force is zero; in the control process, when a foot leaves the combined pedal, the combined pedal automatically resets to a normal state.
3. A method of continuously controlling acceleration and braking of a motor vehicle with a combination pedal according to claim 1 or 2, characterized in that:
in the range of the total travel, when the foot is stepped on the combined pedal, the auxiliary device gives the combined pedal an upward force in the upper acceleration travel, under the action of the upward force, when the foot moves upward, the combined pedal moves upward from a normal state to a position with the maximum top acceleration force of the upper acceleration travel along with the foot synchronization, and the gradual change process of the acceleration of the motor vehicle is continuously controlled by the combined pedal: from zero braking force to zero accelerating force to minimum accelerating force to maximum accelerating force;
when the foot leaves the combined pedal, the auxiliary device provides a force for automatically resetting downwards to a state that the braking force is zero and the accelerating force is zero for the combined pedal, and the combined pedal automatically resets to a state that the braking force is zero and the accelerating force is zero.
4. A method of continuously controlling acceleration and braking of a motor vehicle with a combination pedal as set forth in claim 3, wherein: the touch switch is provided with a touch switch panel, and the touch switch panel is covered on the combined pedal and is used for judging whether the combined pedal is touched by feet.
5. The method for continuously controlling acceleration and braking of a motor vehicle with a combination pedal according to claim 4, wherein: the width of the tact switch panel is equal to the width of the combination pedal.
6. A method of continuously controlling acceleration and braking of a motor vehicle with a combination pedal as set forth in claim 3, wherein: the auxiliary device comprises any one of a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
7. A method for continuously controlling acceleration and braking of a motor vehicle with a combination pedal according to any one of claims 1, 2, 4-6, characterized in that: the width of the combined pedal is equal to the sum of the panel width of the existing single brake pedal, the panel width of the single accelerator pedal and the distance between the brake pedal and the accelerator pedal.
8. The method for continuously controlling acceleration and braking of a motor vehicle with a combination pedal as set forth in claim 7, wherein: the existing acceleration control component is turned up and down by 180 degrees, and the upper acceleration stroke of the combined pedal is realized if the other components are unchanged.
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| CN113167181A (en) * | 2018-12-11 | 2021-07-23 | 丰田自动车株式会社 | Reaction force control device for pedal |
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- 2021-10-21 CN CN202111226145.XA patent/CN113968203B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| CN1048196A (en) * | 1989-06-21 | 1991-01-02 | 耿宝玉 | Self-propelled vehicle quickens, the unified maneuvering system of braking |
| CN1095340A (en) * | 1994-03-10 | 1994-11-23 | 金平 | Motor vehicle gasoline throttle and brake integration scheme |
| WO2015027793A1 (en) * | 2013-08-30 | 2015-03-05 | Deng Zhi | Reverse pedal mechanism |
| CN103481777A (en) * | 2013-09-19 | 2014-01-01 | 谢树德 | Motor vehicle driving control device |
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