CN115158252B - Acceleration braking control method, control device and acceleration braking integrated device - Google Patents

Acceleration braking control method, control device and acceleration braking integrated device Download PDF

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Publication number
CN115158252B
CN115158252B CN202210811861.2A CN202210811861A CN115158252B CN 115158252 B CN115158252 B CN 115158252B CN 202210811861 A CN202210811861 A CN 202210811861A CN 115158252 B CN115158252 B CN 115158252B
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Prior art keywords
brake
pedal
integrated
acceleration
vehicle
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CN115158252A (en
Inventor
吴志运
熊禹
袁恒
周君武
梁国全
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Dongfeng Liuzhou Motor Co Ltd
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Dongfeng Liuzhou Motor Co Ltd
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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
    • 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
    • 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
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Regulating Braking Force (AREA)

Abstract

The invention discloses an acceleration braking control method, a control device and an acceleration braking integrated device, and specifically the acceleration braking control method comprises the following steps: acquiring position information of the integrated pedal and state information of the two brake buttons; and selecting a speed strategy for controlling the vehicle according to the position information and the state information. The actual state of stepping on the integrated pedal and the actual state of the brake buttons are matched together to serve as a trigger mechanism, namely, the acceleration system and the deceleration control system are controlled by the manual and foot stepping matching of a driver when in a current driving mode, the integrated pedal is connected with one of the systems, the state of each brake button and the position of the integrated pedal are influenced on the current vehicle execution system, and therefore when corresponding conditions are achieved, acceleration, deceleration and braking of the vehicle are controlled, and accelerator and brake integration is achieved.

Description

Acceleration braking control method, control device and acceleration braking integrated device
Technical Field
The invention relates to the technical field of automobiles, in particular to an acceleration braking control method, a control device and an acceleration braking integrated device.
Background
With the rapid development of the automobile industry, new drivers are more and more, and because the driving technology of the new drivers is not skilled enough and the distance between the brake and the accelerator of the automatic transmission automobile is relatively short, no barrier exists in the middle, the situation that the accelerator is wrongly taken as the brake is easy to occur under the condition of emergency braking.
In the prior art, in order to improve the situation, the braking is realized by changing the layout between the brake and the accelerator, adding the sensor detection or adopting the forms of an electronic pedal and the like, however, the used electronic single pedal realizes the braking through the emptying pedal, and the acceleration is realized by pressing the pedal, so that the inertia thinking of a driver is changed, and the driving operation of the driver is not utilized.
Disclosure of Invention
The invention mainly aims to provide an acceleration braking control method, an acceleration braking control device and an acceleration braking integrated device, which reduce the probability of false braking, improve the energy recycling rate and reduce the loss of false stepping on the braking to the service life of automobile parts.
In order to achieve the above object, the present invention provides an acceleration braking control method, comprising the steps of:
acquiring position information of the integrated pedal and state information of the two brake buttons, wherein the position information comprises a stepping position and an initial position, and the state information comprises a pressing state and an initial state;
and selecting a speed strategy for controlling the vehicle according to the position information and the state information.
Optionally, the step of selecting a speed policy of the vehicle according to the location information and the state information includes:
and when the integrated pedal is in a stepping position, selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons.
Optionally, the step of selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons includes:
when one of the brake buttons is in a pressed state;
acquiring the displacement or actual position of the integrated pedal;
and controlling the vehicle to slow down or brake according to the displacement or the actual position of the integrated pedal.
Optionally, the step of selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons includes:
when the two brake buttons are in an initial state;
acquiring the displacement or actual position of the integrated pedal;
and controlling the acceleration of the vehicle according to the displacement or the actual position of the integrated pedal.
Optionally, the step of selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons includes:
and when the two brake buttons are in a pressed state, controlling the emergency braking of the vehicle.
Optionally, the step of selecting a speed policy of the vehicle according to the location information and the state information includes:
and when the integrated pedal is at the initial position, controlling the speed of the vehicle to be unchanged or to be braked urgently according to the state information of the two brake buttons.
Optionally, the step of controlling the speed of the vehicle to be unchanged or to be braked urgently according to the state information of the two brake buttons comprises the following steps:
and when the two brake buttons are in a pressed state, controlling the emergency braking of the vehicle.
Optionally, the step of controlling the speed of the vehicle to be unchanged or to be braked urgently according to the state information of the two brake buttons comprises the following steps:
and when one of the brake buttons is in a pressed state or both the brake buttons are in an initial state, controlling the speed of the vehicle to be unchanged.
The invention also provides a control device which comprises a memory, a processor and an acceleration braking control program stored on the memory and capable of running on the processor, wherein the acceleration braking control program is configured to realize the steps of the acceleration braking control method.
The invention also provides an acceleration and braking integrated device, which comprises:
the pedal assembly comprises an integrated pedal, one end of the integrated pedal is movably mounted on the frame, and the other end of the integrated pedal is provided with a movable stroke swinging up and down;
two brake buttons for spaced mounting to a steering wheel of an automobile;
the signal acquisition module comprises a plurality of sensors corresponding to the integrated pedal and the two brake buttons, wherein the sensors corresponding to the two brake buttons are used for detecting state information of the two brake buttons, and the sensors corresponding to the integrated pedal are used for detecting displacement of the other end of the integrated pedal;
the detection module is electrically connected with the signal acquisition module and is used for collecting the electric signals transmitted by the plurality of sensors and confirming information; the method comprises the steps of,
and the control device is electrically connected with the signal acquisition module and the detection module.
According to the technical scheme, the structure of the brake pedal and the accelerator pedal is changed into the structure of a single integrated pedal, an original accelerator accelerating system and an original brake decelerating system are still reserved in the vehicle movement process, the actual state of treading of the integrated pedal and the actual state of a brake button are matched together to serve as a trigger mechanism, namely, the accelerator system or the brake controlling system is controlled by the manual and pedal matching of a driver to be connected with one of the integrated pedals in the current driving mode, the states of the brake buttons and the positions of the integrated pedals are all influenced on the current vehicle executing system, and therefore, when corresponding conditions are achieved, acceleration, deceleration and braking of the vehicle are controlled, and accelerator and brake integration is achieved. The operation mode of the driver is simple, so that a novice driver has a more comfortable driving environment, the probability of false braking is reduced, the energy recycling rate is improved, and the loss of the false braking to the service life of automobile parts is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of an embodiment of an acceleration braking control method according to the present invention;
FIG. 2 is a flow chart diagram of the integrated accelerator and brake apparatus of FIG. 1;
fig. 3 is a schematic structural diagram of a control device of a hardware running environment according to an embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the case where a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
At present, a common means for preventing a driver from mistaking a throttle for a brake mostly solves the problem of how to change the layout between the brake and the throttle, or detect the force on the throttle pedal through a sensor, and when the force change occurs greatly, the throttle is used as an invalid instruction; some patents also control braking and acceleration by removing a brake pedal through an integrated accelerator, such as dividing the pedal into a deceleration area, an acceleration area, a buffer area and a braking area from top to bottom, and entering a braking deceleration state when the stepping down or lifting up speed is too high. In some vehicle types, the accelerator is converted into a pedal integrating oiling and braking through adding a one-key conversion mode, but the electronic single pedal used changes the inertia thinking of a person, the pedal is emptied to realize braking, and the pedal is pressed to accelerate. The braking is realized by dragging the automobile through electromagnetic resistance generated by reverse current generated by lifting the pedal, energy recovery is realized, endurance is increased, and the traditional braking device is not abandoned, and a single pedal in a strict sense is not adopted.
First, the main disadvantage of using electronic pedals is that the driving habits of each person are different, and the habit of stepping on the accelerator is also quite different, and particularly, accurate positioning is difficult to achieve for controlling the stepping speed and the stepping force. The pedal is also judged by the force of stepping, so that the pedal can be automatically converted into a braking mode when the pedal is suddenly stepped, or the pedal is converted into the braking mode when the force acting on the pedal is particularly large, but the braking condition is difficult to trigger because the stepping amplitude of the accelerator is large if the pedal is in a high-speed driving condition.
Moreover, the single Pedal is not a strict single Pedal, and the main purpose of the single Pedal is to realize energy recovery through an e-Pedal electronic Pedal system, and the braking source is reverse current generated by lifting the Pedal to realize braking, and the stepping is oil feeding acceleration, so that the lifting is converted into a braking mode. Its main disadvantages are as follows;
1. the main purpose is to reduce energy consumption and improve the endurance problem of the vehicle. The application range is mainly urban roads driven at low speed, the effect of braking is affected when the reverse current collection is smaller on some bumpy roads, and effective braking is difficult to achieve on automobiles driven at high speed.
2. According to the effect of market driver feedback, the probability of accident in single pedal mode is much higher than that of traditional mode, mainly people can instinctively step on another brake pedal if the kinetic energy recovery device can not reach the expected braking effect in emergency, but people are likely to feel confused due to the fact that the operation habit is switched in emergency, and accidents are easily caused by mistakenly stepping on the electronic pedal due to the influence of muscle memory.
3. The portability of single pedal operation is low, and once a single pedal mode is familiar, turning off the vehicle's mind and muscle memory in other modes is difficult to respond, especially in emergency situations.
4. The e-Pedal mode contradicts the theory of intelligent unmanned braking, one by venting the Pedal and one by depressing the Pedal, thus being highly controversial.
In view of the above, the invention provides an acceleration and braking integrated device, which realizes the integration of an accelerator and a brake by thoroughly removing a brake pedal and controlling the brake through buttons on the accelerator and a steering wheel, simplifies the structural layout of an automobile and enables a novice driver to have a more comfortable driving environment. Fig. 1 to 3 are embodiments of an acceleration braking integrated device provided by the present invention.
The invention provides an acceleration and braking integrated device, which at least comprises a control device, and referring to fig. 3, fig. 3 is a schematic structural diagram of the control device of a hardware running environment according to an embodiment of the invention.
As shown in fig. 3, the control device may include: a processor 1001, such as a CPU, a communication bus 1002, a driver interface 1003, a network interface 1004, and a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The driver interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional driver interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration of the control device shown in fig. 1 is not limiting and may include more or fewer components than shown, or may be combined with certain components, or a different arrangement of components.
As shown in fig. 3, an operating system, a network communication module, a driver interface module, and an acceleration brake control program may be included in a memory 1005 as one type of computer storage medium.
In the control device shown in fig. 3, the processor 1001, the memory 1005 may be provided in an acceleration brake integrated device that calls an acceleration brake control program stored in the memory 1005 through the processor 1001 and performs the following operations:
acquiring position information of the integrated pedal and state information of the two brake buttons;
and selecting a speed strategy for controlling the vehicle according to the position information and the state information.
Specifically, the accelerating and braking integrated device further comprises an integrated pedal and two braking buttons, wherein the integrated pedal is used for being movably mounted on a frame, the two braking buttons are used for being mounted on a steering wheel of an automobile, and based on the structure, the embodiment of the accelerating and braking control method is provided.
Referring to fig. 1 to 2, the acceleration braking control method includes the steps of:
s10: acquiring position information of the integrated pedal and state information of the two brake buttons;
it should be noted that, for the integrated pedal, the position information includes a pedal position and an initial position, where the initial position is a natural state where the integrated pedal is not subjected to an external force, and is a position where an elastic structure inside the pedal assembly is kept stable, the integrated pedal is stepped by a driver to be pressed and swung, and a certain displacement occurs against the action of the elastic force in the pedal assembly, so that the integrated pedal is converted from the initial position to the pedal position, and the pedal position is only one state, and does not limit the swing angle and the pressing displacement of the integrated pedal. For the brake button, the state information includes a pressed state and an initial state, wherein the initial state is a state that the brake button is not triggered, and the pressed state indicates that the driver applies external force to the brake button to change the state of the brake button, namely, the triggered state.
S20: and selecting a speed strategy for controlling the vehicle according to the position information and the state information.
According to the technical scheme, the structure of the brake pedal and the accelerator pedal is changed into the structure of a single integrated pedal, an original accelerator accelerating system and an original brake decelerating system are still reserved in the vehicle movement process, the actual state of treading of the integrated pedal and the actual state of a brake button are matched together to serve as a trigger mechanism, namely, the accelerator system or the brake controlling system is controlled by the manual and pedal matching of a driver to be connected with one of the integrated pedals in the current driving mode, the states of the brake buttons and the positions of the integrated pedals are all influenced on the current vehicle executing system, and therefore, when corresponding conditions are achieved, acceleration, deceleration and braking of the vehicle are controlled, and accelerator and brake integration is achieved. The operation mode of the driver is simple, so that a novice driver has a more comfortable driving environment, the probability of false braking is reduced, the energy recycling rate is improved, and the loss of the false braking to the service life of automobile parts is reduced.
Further, step S20 includes:
s21: and when the integrated pedal is in a stepping position, selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons.
When the driver steps on the integrated pedal, the default integrated pedal is triggered, the speed of the vehicle needs to be controlled, and correspondingly, the control instructions of the vehicle speed can be definitely acceleration, deceleration and even braking through the states of the two brake buttons.
It will be understood that the pressing combinations of the presence of two brake buttons include any one button pressing, both buttons not pressing, further, step S21 includes:
when one of the brake buttons is in a pressed state;
the position of the brake button in the pressed state is not limited, but it is limited that only one brake button is in the pressed state at this time.
Acquiring the displacement or actual position of the integrated pedal;
it should be noted that, in the driving process of the automobile, the trampling degree of the integrated pedal by the driver is different according to different working conditions, and the trampling force can be changed along with the propulsion of the driving time, namely, the position of the integrated pedal can be changed along with the different grasping of the working conditions by the driver.
And controlling the vehicle to slow down or brake according to the displacement or the actual position of the integrated pedal.
It should be noted that, when one of them brake button is in the state of pressing, this integrated footboard is connected braking control system at this moment, uses as brake pedal promptly, and according to driver's trample degree, the displacement volume of integrated footboard is less when trampling slightly, and control vehicle is slowed down this moment, tramples even when trampling to the end with integrated footboard again, and the displacement volume of integrated footboard is big this moment, brakes to guarantee the security of driving. The position amount refers to a displacement variation amount of the end of the movable stroke with respect to the initial position, rather than with respect to the ground, when the position of the integrated pedal is varied.
Further, step S21 further includes:
when the two brake buttons are in an initial state;
at this time, both the brake buttons are in an unactuated state.
Acquiring the displacement or actual position of the integrated pedal;
it will be appreciated that the position of the integrated pedal will vary with the driver's varying awareness of the operating conditions.
And controlling the acceleration of the vehicle according to the displacement or the actual position of the integrated pedal.
It should be noted that, when both brake buttons are in an initial state, the integrated pedal is connected with the accelerator control system by default, that is, is used as an accelerator pedal, and according to the stepping degree of the driver, the displacement amount of the integrated pedal is smaller when the driver steps lightly, the acceleration degree of the control vehicle is smaller, and when the integrated pedal is stepped heavily even to the bottom, the displacement amount of the integrated pedal is large at this time, and higher acceleration is performed, so that the vehicle speed is improved, and the position amount refers to the displacement change amount of the end part of the movable stroke relative to the initial position of the integrated pedal when the position of the integrated pedal changes, rather than relative to the ground.
When the brake pedal is modified, one of the accelerator pedal and the brake pedal can be selectively removed, in this embodiment, the brake pedal is removed, so that the accelerator pedal is modified, the accelerator pedal can be selectively disconnected and connected with the brake control, and in a default state, the integrated pedal is used as the accelerator pedal, which considers that in the vehicle driving process, accelerator acceleration is a necessary condition for starting the vehicle, and the requirement for stepping on the accelerator is larger in the traveling process, and only when at least one brake button is in a pressed state, the brake control system is triggered, and the integrated pedal is used as the brake pedal to perform deceleration and braking. It will be appreciated that when retrofitting is to remove the accelerator pedal and only leave the brake pedal, the integrated pedal membrane is connected to the brake control system without pressing both brake buttons, which is not described in detail herein.
According to the different sequence of driver to brake button and integrated footboard operation, there may be different judging mechanisms, for example, trample integrated footboard earlier, then press one of them brake button, and there is certain displacement volume at this moment to integrate the footboard, and the position changes, and the condition one, the driver keeps trampling unchangeable or slightly changes trampling degree to integrated footboard, after pressing the brake button this moment, gives corresponding braking degree control through obtaining integrated footboard current displacement volume, and the condition two, the driver just releases integrated footboard again tramples after pressing the brake button again, and the normal speed reduction control according to the brake mode of this moment. Of course, the control can be performed by the pressing degree of the button, but in consideration of the fact that the driver often suddenly performs a braking action, the pressing of the button is limited, emergency braking is easy to be caused, and bad driving experience is caused for the driver. It will be appreciated that when one of the brake buttons is first pressed, and the integrated pedal is depressed, the deceleration control is performed according to the conventional braking mode.
In consideration of the situation that the vehicle needs emergency braking, in step S20, when both the two brake buttons are in a pressed state, the vehicle emergency braking is controlled. At the moment, the current displacement of the integrated pedal is not required to be acquired, the emergency braking mode is directly started, and the safety performance is ensured.
Further, step 20 further includes:
s22: and when the integrated pedal is at the initial position, controlling the speed of the vehicle to be unchanged or to be braked urgently according to the state information of the two brake buttons.
It will be appreciated that when the integrated pedal is not depressed, the corresponding throttle control system and brake control system are both triggered, and when one of the brake buttons is in a pressed state or both of the brake buttons are in an initial state, the corresponding execution program is not corresponding, so that the current vehicle speed is not changed. When the two brake buttons are in a pressing state, the current displacement of the integrated pedal is not required to be acquired any more, an emergency braking mode is directly started, and the execution of the emergency braking is not influenced by the position information of the integrated pedal.
In the technical scheme of the embodiment, the accelerator pedal and the brake pedal are combined by using one integrated pedal, the switch of the accelerator and the brake functions is controlled by using the buttons on the steering wheel, the action is similar to a two-way switch, when any brake button on the steering wheel is not operated, the accelerator is in an accelerator acceleration mode, and when any brake button and the pedal on the steering wheel are simultaneously acted, the brake is switched to a brake mode. In the driving process of the automobile, particularly at the turning position of an intersection, when the integrated pedal is not in the stepping stage, the operation process is simplified, and the uncoordinated reaction of the body is caused by the simultaneous operation is reduced. A new braking mode is additionally arranged, namely, a braking button on the steering wheel is in a pressing state at the same time, so that the steering wheel can enter an emergency braking mode, when the integrated pedal is not in a stepping position, any braking button on the steering wheel is independently pressed down to be in an invalid operation, and corresponding misoperation caused by unexpected pressing of the button is avoided.
It can be understood that the two brake buttons are arranged on the steering wheel and can be arranged corresponding to the two hands of the driver, so that the driver can push the brake buttons through the extension of the thumbs, and the operation is more convenient. The invention does not limit the specific form of the brake button, can be an electric control switch directly, can directly control the conduction of a circuit on a corresponding circuit board by pressing the brake button, can also be only one pressing key, and can carry out state sensing through a pressure sensor or a position sensor so as to carry out signal transmission of corresponding state information.
In order to achieve the above method steps, the accelerator-brake integrated device according to the embodiment of the present invention includes a pedal assembly, two brake buttons, a signal acquisition module and a detection module, where the pedal assembly includes an integrated pedal, one end of the integrated pedal is movably mounted on a vehicle frame, the other end of the integrated pedal has a movable stroke that swings up and down, the two brake buttons are mounted on a steering wheel of an automobile at intervals, the signal acquisition module includes a plurality of sensors corresponding to the integrated pedal and the two brake buttons, the sensors corresponding to the two brake buttons are used for detecting state information of the two brake buttons, the sensor corresponding to the integrated pedal is used for detecting a displacement amount at the other end of the integrated pedal, the detection module is electrically connected with the signal acquisition module, and is used for collecting electrical signals transmitted by the plurality of sensors and confirming information, and the control device is electrically connected with the signal acquisition module and the detection module.
In the embodiment of the invention, the signal acquisition module mainly acquires the integrated pedal stepping signals and the information of the pressing condition of the brake button through a plurality of sensors, and the acquired information is transmitted to the detection module, so that the detection module performs different mode matching on the acquired signals and then transmits the signals to corresponding different execution units in the control device to execute corresponding programs, and finally a series of operations such as braking, accelerating, emergency braking and the like are achieved.
Specifically, under the natural condition that the vehicle is in an accelerator acceleration mode, a driver steps on an integrated pedal, namely, the integrated pedal overcomes the elasticity of a pedal spring to downwards a certain angle in the process of controlling the vehicle to travel at a constant speed, so that a certain displacement is realized, when any brake button on a steering wheel is pressed down, the signal acquisition module transmits the acquired signal to the control device, so that a brake execution unit is triggered to switch the pedal to a brake mode, and the brake operation is implemented when the driver continues to step down. When the integrated pedal is restored to the initial position, a signal is sent through the sensor, and at the moment, the steering wheel brake button can automatically spring up to enter an accelerator acceleration mode. Specifically, when the integrated pedal is not in the stepping position, two brake buttons on the steering wheel are detected to be in the pressing state through the sensors, the detection state of the integrated pedal is skipped to enter an emergency braking mode, namely emergency braking, and the scene is suitable for sudden unexpected situations, such as sudden intrusion of a new person into the front of a car or sudden stop of a car in front of the car, and the like, so that the probability of traffic accidents is reduced. When the integrated pedal is not in the stepping position and the single brake buttons on the left side and the right side of the steering wheel are pressed, information is transmitted to the signal acquisition module through the sensor, and the integrated pedal is in the initial position at the moment, so that the system cannot enter the brake execution unit or the emergency brake unit, the system can be treated as invalid signals at the moment, and the automobile cannot execute any operation.
The type of sensor used in the present application is not limited, and may be a pressure sensor, a displacement sensor, or a position sensor.
In addition, in this embodiment, the position sensor collects the voltage information of the integrated pedal, determines the current pedal position, the control device converts the signal into a voltage peak value and a voltage peak value change rate, and according to the determination result, the system performs the following operations: the voltage peak value or the change rate of the voltage peak value is smaller than the corresponding threshold value, and the automobile is judged to be in a normal state and is normally accelerated to run; the voltage peak value is smaller than the given threshold value, and the voltage peak value change rate is larger than the given threshold value, and the state of 'false stepping' is judged, so that the state of false stepping is not used as an indication of the change of the vehicle speed strategy.
Compared with the prior art, the application has the following advantages: the control method and the device are simple, the brake and brake integrated operation can be realized through the brake button on the steering wheel, the structural layout of the main driving position of the automobile is simplified, and the practicability is high; the whole scheme of the automobile is not greatly changed, and most of the automobile adopts the original automobile scheme, so that the compatibility is good; the multi-condition triggering mechanism is adopted, so that a single misoperation is prevented from triggering a brake execution unit, the probability of false braking is effectively reduced, and the life safety of a person is ensured; when the integrated pedal is in a emptying state, the brake button on the steering wheel is additionally arranged and is in a pressing state to enter an emergency braking mode, the situation that the foot cannot brake due to the fact that the foot is not in the emergency condition when the brake pedal is in the emergency condition is effectively avoided, when the braking is finished, the steering wheel brake button senses that the pedal returns to the completely emptying state through the sensor, namely, the initial position, the brake button is automatically reset, and then the accelerator accelerating mode is re-entered. The process avoids the problem of overlarge speed caused by the sudden braking end; the traffic accident caused by mistakenly stepping on the accelerator by emergency braking of a driver can be effectively avoided, and the safety of a novice driver is ensured, so that the social order is maintained; the traditional pedal braking mode is not changed greatly, and no paradox is generated with future automatic driving technology.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (8)

1. An acceleration braking control method based on an acceleration braking integrated device, the acceleration braking integrated device comprising an integrated pedal and two brake buttons, the integrated pedal is used for being movably mounted on a frame, and the two brake buttons are used for being mounted on a steering wheel of an automobile, the acceleration braking control method comprises the following steps:
acquiring position information of the integrated pedal and state information of the two brake buttons, wherein the position information comprises a stepping position and an initial position, and the state information comprises a pressing state and an initial state;
selecting a speed strategy for controlling the vehicle according to the position information and the state information;
the step of selecting a speed policy of the vehicle according to the position information and the state information includes:
when the integrated pedal is at a stepping position, selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons;
the step of selecting a speed strategy for controlling the vehicle according to the state information of the two brake buttons comprises the following steps:
when one of the brake buttons is in a pressed state;
acquiring the displacement or actual position of the integrated pedal;
and controlling the vehicle to slow down or brake according to the displacement or the actual position of the integrated pedal.
2. The acceleration braking control method of claim 1, wherein the step of selecting a speed strategy for controlling the vehicle based on the state information of the two brake buttons includes:
when the two brake buttons are in an initial state;
acquiring the displacement or actual position of the integrated pedal;
and controlling the acceleration of the vehicle according to the displacement or the actual position of the integrated pedal.
3. The acceleration braking control method of claim 1, wherein the step of selecting a speed strategy for controlling the vehicle based on the state information of the two brake buttons includes:
and when the two brake buttons are in a pressed state, controlling the emergency braking of the vehicle.
4. The acceleration braking control method of claim 1, wherein the step of selecting a speed strategy of the vehicle based on the position information and the state information includes:
and when the integrated pedal is at the initial position, controlling the speed of the vehicle to be unchanged or to be braked urgently according to the state information of the two brake buttons.
5. The acceleration braking control method according to claim 4, wherein the step of controlling the speed of the vehicle to be constant or the emergency braking according to the state information of the two brake buttons comprises:
and when the two brake buttons are in a pressed state, controlling the emergency braking of the vehicle.
6. The acceleration braking control method according to claim 4, wherein the step of controlling the speed of the vehicle to be constant or the emergency braking according to the state information of the two brake buttons comprises:
and when one of the brake buttons is in a pressed state or both the brake buttons are in an initial state, controlling the speed of the vehicle to be unchanged.
7. A control device comprising a memory, a processor and an acceleration brake control program stored on the memory and operable on the processor, the acceleration brake control program being configured to implement the steps of the acceleration brake control method of any one of claims 1 to 6.
8. An acceleration braking integrated device, characterized by comprising:
the pedal assembly comprises an integrated pedal, one end of the integrated pedal is movably mounted on the frame, and the other end of the integrated pedal is provided with a movable stroke swinging up and down;
two brake buttons for spaced mounting to a steering wheel of an automobile;
the signal acquisition module comprises a plurality of sensors corresponding to the integrated pedal and the two brake buttons, wherein the sensors corresponding to the two brake buttons are used for detecting state information of the two brake buttons, and the sensors corresponding to the integrated pedal are used for detecting the position of the other end of the integrated pedal;
the detection module is electrically connected with the signal acquisition module and is used for collecting the electric signals transmitted by the plurality of sensors and confirming information; the method comprises the steps of,
the control device of claim 7, wherein the control device is electrically connected to the signal acquisition module and the detection module.
CN202210811861.2A 2022-07-11 2022-07-11 Acceleration braking control method, control device and acceleration braking integrated device Active CN115158252B (en)

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