CN111873963A - Brake control system, method, vehicle, and storage medium - Google Patents
Brake control system, method, vehicle, and storage medium Download PDFInfo
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- CN111873963A CN111873963A CN202010758547.3A CN202010758547A CN111873963A CN 111873963 A CN111873963 A CN 111873963A CN 202010758547 A CN202010758547 A CN 202010758547A CN 111873963 A CN111873963 A CN 111873963A
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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
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The embodiment of the invention discloses a brake control system, a brake control method, a vehicle and a storage medium. The system comprises: the grip sensor is arranged on a vehicle steering wheel and used for acquiring grip information on the vehicle steering wheel and sending the grip information to the brake controller; the camera is arranged on the surface of the vehicle steering wheel and used for acquiring the facial information of a driver and sending the facial information to the brake controller; and the brake controller is used for determining vehicle control information according to the grip strength information and the face information and controlling the vehicle to brake. According to the technical scheme, the problem of low braking efficiency caused by that the vehicle only depends on the grip strength information of the steering wheel to brake and judge when the vehicle is in danger is solved, and the robustness of a braking control system in the running process of the vehicle and the driving safety of the vehicle when the vehicle is in danger are improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicle control, in particular to a brake control system, a brake control method, a vehicle and a storage medium.
Background
Automobiles have become indispensable vehicles in our daily lives, but as vehicles increase, traffic accidents are also occurring more and more frequently. When a driver encounters an emergency, the situation that braking is not thorough and the driver takes the accelerator as the brake in a busy or messy state often occurs, so that an automobile accident occurs.
When a driver encounters danger during driving, the driver can hold the steering wheel tightly based on instinctive stress response, and in the prior art, braking judgment is carried out by acquiring the holding power information of the steering wheel based on the above reasons so as to supplement a foot brake. When braking judgment is carried out, a pressure area is usually arranged at a fixed position of a steering wheel, whether the standard of triggering braking is met or not is judged according to the pressure intensity of the pressure area, and the standard of triggering braking can be set individually so as to meet the requirements of drivers with different grip strengths on the triggering standard; or starting a timer when the acquired pressure on the steering wheel exceeds a threshold value, and braking when the duration exceeds a time threshold value.
However, the braking judgment is only carried out through the grip strength information of the steering wheel, the standard is single, and the triggering braking standard needs to be calibrated again for each driver, so that the workload of the system is increased, and the burden is added to the drivers; the method for judging braking according to the duration that the pressure intensity exceeds the threshold value increases the reaction time of vehicle braking, cannot adapt to the working condition of actual braking, gives braking feedback meeting the expectation of a driver in time, causes the reduction of vehicle braking efficiency, and reduces the robustness of a braking control system in the vehicle running process.
Disclosure of Invention
The invention provides a brake control system, a brake control method, a vehicle and a storage medium, which are used for realizing the correct judgment of an emergency brake working condition in the running process of the vehicle and improving the brake efficiency of the vehicle and the robustness of a brake control system.
In a first aspect, an embodiment of the present invention provides a brake control system, including: a grip sensor, a camera and a brake controller,
the grip sensor is arranged on a vehicle steering wheel and used for acquiring grip information on the vehicle steering wheel and sending the grip information to the brake controller;
the camera is arranged on the surface of the vehicle steering wheel and used for acquiring the facial information of a driver and sending the facial information to the brake controller;
and the brake controller is used for determining vehicle control information according to the grip strength information and the face information and controlling the vehicle to brake.
In a second aspect, an embodiment of the present invention further provides a brake control method, including:
receiving grip strength information on a vehicle steering wheel sent by a grip strength sensor;
receiving face information of a driver sent by a camera;
and determining vehicle control information according to the grip strength information and the face information, and controlling the vehicle to brake according to the vehicle control information.
In a third aspect, an embodiment of the present invention further provides a vehicle, including:
the grip sensor is used for acquiring grip information on a vehicle steering wheel;
the camera is used for collecting the facial information of the driver;
the sound sensor is used for collecting sound information of a driver;
the pedal sensor is used for acquiring acceleration information of the brake pedal;
at least one controller, the controller comprising at least a brake controller;
storage means for storing one or more programs;
when the plurality of programs are executed by the at least one controller, the at least one controller is caused to implement the brake control method according to any of the embodiments of the present invention.
In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a braking control method as provided by any of the embodiments of the present invention.
An embodiment of the present invention provides a brake control system, including: the grip sensor is arranged on a vehicle steering wheel and used for acquiring grip information on the vehicle steering wheel and sending the grip information to the brake controller; the camera is arranged on the surface of the vehicle steering wheel and used for acquiring the facial information of a driver and sending the facial information to the brake controller; and the brake controller is used for determining vehicle control information according to the grip strength information and the face information and controlling the vehicle to brake. The vehicle control information is determined by combining the facial information of the driver and the grip strength information on the steering wheel, the appropriate threshold value condition for judging the grip strength information is selected according to the facial information of the driver, so that the driver can brake in time when in a stress state, the problem of low braking efficiency caused by that the vehicle only depends on the grip strength information of the steering wheel to brake and judge when in danger is solved, the re-establishment of triggering braking standards for different drivers is avoided, the robustness of a braking control system in the vehicle driving process is improved, and the driving safety of the vehicle when in danger is improved.
Drawings
Fig. 1 is a schematic configuration diagram of a brake control system according to a first embodiment of the present invention;
fig. 2 is a schematic configuration diagram of a brake control system according to a second embodiment of the present invention;
fig. 3 is a flowchart of a brake control method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
Example one
Fig. 1 is a schematic structural diagram of a brake control system according to an embodiment of the present invention, where the brake control system includes: grip sensor 11, camera 12 and brake controller 13.
The grip sensor 11 is disposed on a steering wheel of the vehicle, and is configured to acquire grip information on the steering wheel of the vehicle and send the grip information to the brake controller 13.
The camera 12 is provided on a surface of a steering wheel of the vehicle, and is configured to acquire facial information of a driver and send the facial information to the brake controller 13.
The brake controller 13 is configured to determine vehicle control information according to the grip strength information and the face information, and control the vehicle to brake.
Wherein, the grip sensor 11 and the camera 12 are respectively connected with the brake controller 13 in a communication way. The grip sensor 11 may be understood as a device or apparatus capable of sensing a Pressure signal and regularly converting the Pressure signal into an electric signal capable of being output, and may be understood as a Pressure Transducer (Pressure Transducer). Optionally, the grip sensors 11 may be distributed over the outer edge of the steering wheel, the distance between the grip sensors 11 may be 2cm, and the grip sensors 11 are arranged in a position that can receive grip information of a driver at any position of the steering wheel as a standard, which is not limited in this embodiment of the present invention.
The camera 12 may be understood as a device for capturing video and converting captured analog video signals into digital signals, and optionally, in the embodiment of the present invention, the camera 12 may be embedded in the center of the surface of the steering wheel body to capture facial information of the driver.
The facial information may include expression information of the driver, distance information between the face of the driver and the steering wheel of the vehicle, and identity characteristic information of the driver, and specifically, the identity characteristic information of the driver includes gender characteristic information and age characteristic information.
Specifically, the expression information can be obtained by identifying a plurality of feature points in the collected face image and comparing the feature points with an expression information standard obtained by analyzing the big data according to the relative position relationship between the feature points. The identity characteristic information of the driver can be determined by the face characteristic information in the acquired face image, and may include, for example, sex characteristic information that the driver is male or female determined according to contour information in the face characteristic information, and age characteristic information that the driver is young, middle-aged, or old determined according to face details in the face characteristic information.
The vehicle control information may be understood as control information for controlling the vehicle to run or brake, and the brake controller 13 may control the deceleration wheel and the transmission mechanism to brake the vehicle according to the determined vehicle control information.
Specifically, in the running process of the vehicle, the grip strength information of the hand of the driver on the steering wheel is constantly acquired through the grip strength sensors 11 distributed on the steering wheel, and the acquired grip strength information is sent to the brake controller 13 through the grip strength sensors 11; the method comprises the steps that expression information of the face of a driver, distance information between the face and a vehicle steering wheel and identity characteristic information of the driver are obtained constantly through a camera 12 embedded in the center surface of the steering wheel, and the information is sent to a brake controller 13; the brake controller 13 determines grip strength threshold information for determining braking according to the grip strength information according to the identity characteristic information in the received facial information, judges whether the vehicle needs to be braked according to the received grip strength information and expression information and/or distance information in the facial information, generates corresponding vehicle control information, and enables the vehicle to be braked emergently by controlling the speed reducing wheel and the transmission mechanism if the vehicle needs to be braked emergently.
Further, the brake controller 13 is also configured to determine grip threshold information according to the driver identity characteristic information; the grip strength threshold information comprises a first threshold, a second threshold and a third threshold; wherein the first threshold is greater than the second threshold and the third threshold, and the second threshold is different from the third threshold.
The grip threshold information may be understood as a criterion for determining whether the vehicle satisfies emergency braking based on the grip information.
Specifically, six groups of grip strength threshold information can be determined according to the difference between the gender and the age of the driver, wherein the six groups of grip strength threshold information are respectively female adolescence, female middle-age, female old age, male adolescence, male middle-age and male old age, and each group of grip strength threshold information comprises three thresholds which are respectively a first threshold, a second threshold and a third threshold. Wherein the first threshold value is defined as a limit threshold value of the grip strength of the driver in the stress situation, which is determined according to the identity characteristics of the driver; the second threshold value can be understood as a lowest threshold value of the grip strength of the driver of the type under the unforeseen circumstance of hands and feet, which is determined according to the identity characteristics of the driver; the third threshold value can be understood as a lowest threshold value of the grip strength of the driver when the driver is subjected to emergency braking, wherein the lowest threshold value is determined according to the identity characteristics of the driver; wherein the first threshold is greater than the second threshold and the third threshold and the second threshold is different from the third threshold.
Optionally, the sex and age information of the driver may also be manually input by the driver before the vehicle is started, and the corresponding grip strength threshold information is determined according to the input sex and age information, which is not limited in this embodiment of the present invention.
Further, the brake controller 13 is specifically configured to:
when the grip strength information is larger than a first threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure; when the grip strength information is larger than a second threshold value and the expression information is terrorism and/or the distance information is smaller than a preset distance threshold value, determining that the vehicle control information is emergency braking and controlling the vehicle to brake at the maximum brake pressure; and when the grip strength information is larger than the second threshold value and the face information does not contain complete face information, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure.
Specifically, when the grip strength information is greater than a first threshold value, it can be considered that the driver is in a stress state of holding the steering wheel in a reflecting manner when encountering a dangerous condition, and the vehicle control information is determined to be emergency braking; when the grip strength information is greater than the second threshold value and the expression information is terrorism, the driver can be considered to be in a stress state that the driver can not grip the steering wheel when encountering danger, and the vehicle control information is determined to be emergency braking; when the grip strength information is greater than the second threshold value and the distance information is less than the preset distance threshold value, the driver can be considered to be in a stress state that the driver is stressed and lowers the head to be close to the steering wheel and cannot hold the steering wheel tightly, and the vehicle control information is determined to be emergency braking; when the grip strength information is larger than the second threshold value and complete face information cannot be identified in the face information, it can be considered that the driver is in a stress state that the driver is in danger of covering the face and cannot hold the steering wheel tightly, and it is determined that the vehicle control information is emergency braking. When the vehicle control information is confirmed as emergency braking, the deceleration wheel and the transmission mechanism are controlled by the brake controller 13 so that the brake pressure of the master cylinder reaches the maximum to brake the vehicle.
The technical solution of this embodiment is to provide a brake control system, including: the grip sensor is arranged on a vehicle steering wheel and used for acquiring grip information on the vehicle steering wheel and sending the grip information to the brake controller; the camera is arranged on the surface of the vehicle steering wheel and used for acquiring the facial information of a driver and sending the facial information to the brake controller; and the brake controller is used for determining vehicle control information according to the grip strength information and the face information and controlling the vehicle to brake. The vehicle control information is determined by combining the facial information of the driver and the grip strength information on the steering wheel, the appropriate threshold value condition for judging the grip strength information is selected according to the facial information of the driver, so that the driver can brake in time when in a stress state, the problem of low braking efficiency caused by that the vehicle only depends on the grip strength information of the steering wheel to brake and judge when in danger is solved, the re-establishment of triggering braking standards for different drivers is avoided, the robustness of a braking control system in the vehicle driving process is improved, and the driving safety of the vehicle when in danger is improved.
Example two
Fig. 2 is a schematic structural diagram of a brake control system according to a second embodiment of the present invention, and the technical solution of the present embodiment is further detailed on the basis of the above technical solution, and the brake control system includes: grip sensor 11, camera 12, brake controller 13, sound sensor 14 and pedal sensor 15.
The grip sensor 11 is disposed on a steering wheel of the vehicle, and is configured to acquire grip information on the steering wheel of the vehicle and send the grip information to the brake controller 13.
The camera 12 is provided on a surface of a steering wheel of the vehicle, and is configured to acquire facial information of a driver and send the facial information to the brake controller 13.
The sound sensor 14 is used to acquire sound information of the driver and send the sound information to the brake controller 13.
The pedal sensor 15 is provided on a brake pedal of the vehicle, and is configured to acquire acceleration information of the brake pedal and send the acceleration information to the brake controller 13.
The brake controller 13 is configured to determine vehicle control information according to the grip strength information and the face information, and control the vehicle to brake.
Further, the brake controller 13 is also configured to determine vehicle control information according to the grip strength information and the sound information or the acceleration information, and control the vehicle to brake.
The sound sensor 14 can be understood as a device for receiving sound waves and generating corresponding electrical signals according to the intensity and waveform of the sound, and the device can function as a microphone. Alternatively, the sound sensor 14 may be mounted on the vehicle dashboard to receive sound information from the vehicle, such that it is mounted close to the driver to better receive the driver's sound information. The pedal sensor 15 is understood to be a device which is mounted on the vehicle brake pedal and is used to detect the movement and force conditions of the vehicle brake pedal.
Further, the brake controller 13 is specifically configured to:
when the grip strength information is greater than a second threshold value and the sound information is greater than a preset decibel threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum braking pressure; and when the grip strength information is greater than the third threshold and the acceleration information is greater than the preset acceleration threshold, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure.
Specifically, when the grip strength information is greater than the second threshold value and the sound information is greater than the preset decibel threshold value, it can be considered that the driver is in a stress state that the driver cannot hold the steering wheel due to the dangerous aphonia scream, and it is determined that the vehicle control information is emergency braking; when the grip strength information is greater than the third threshold value and the acceleration information is greater than the preset acceleration threshold value, the driver is considered to be in danger and has a willingness to brake, and at the moment, in order to save the time required by the driver to step the brake pedal to the bottom, the vehicle control information is determined to be emergency braking. When the vehicle control information is confirmed as emergency braking, the deceleration wheels and the transmission mechanism are controlled by the brake controller 13 such that the brake pressure of the master cylinder is maximized to brake the vehicle.
Optionally, the preset decibel threshold may be set to 70 decibels, and the preset decibel threshold may be obtained according to big data statistics, which is not limited in the embodiment of the present invention.
According to the technical scheme of the embodiment, gender and age information of a driver is determined according to collected facial information of the driver, corresponding grip strength threshold information is matched with a brake control system according to the determined gender and age information, a brake controller determines state information of the driver by combining at least one of expression information, distance information, sound information and acceleration information in the received facial information on the basis of the received grip strength information and the grip strength threshold information matched with the received grip strength information, and determines vehicle control information according to the state information, so that when the vehicle control information is emergency braking, the vehicle is braked by controlling the brake pressure of a brake master cylinder to be maximum. Whether the vehicle needs to be emergently braked is judged by combining the reflection of various drivers on the basis of the grip strength information of the steering wheel, the judgment accuracy and the robustness of a control system are improved, and when the drivers have brake willingness, the emergency brake is directly carried out, so that the time for the drivers to guess the brake pedal to the bottom in emergency is saved, the brake reaction speed in emergency is increased, and the driving safety when the vehicle is in danger is improved.
EXAMPLE III
Fig. 3 is a flowchart of a braking control method according to a third embodiment of the present invention, where this embodiment is applicable to a situation where a driver controls a vehicle to perform emergency braking in an emergency situation, and the method may be executed by a braking control system, where the braking control system may be implemented by software and/or hardware, and the braking control system may be configured on a computing device, and specifically includes the following steps:
s201, grip strength information on a vehicle steering wheel sent by a grip strength sensor is received.
Specifically, in the driving process of the vehicle, the brake controller receives the grip force information of the driver on the steering wheel in real time through a plurality of grip force sensors arranged on the outer edge of the steering wheel of the vehicle in real time.
And S202, receiving the face information of the driver sent by the camera.
Specifically, during the running process of the vehicle, the brake controller receives the facial information of the driver collected by the camera arranged in the center of the surface of the steering wheel body of the vehicle in real time. The facial information may include expression information of the driver, distance information between the face of the driver and the steering wheel of the vehicle, and identity characteristic information of the driver, and specifically, the identity characteristic information of the driver includes gender characteristic information and age characteristic information.
And S203, determining vehicle control information according to the grip strength information and the face information, and controlling the vehicle to brake according to the vehicle control information.
Specifically, the brake controller determines grip threshold information according to identity characteristic information in the received facial information, the grip threshold information is used for judging grip information under different braking conditions, meanwhile, on the basis of the received grip information and the determined grip threshold information, whether the vehicle needs to be braked or not is judged by combining expression information and/or distance information in the received facial information, vehicle control information is determined according to a judgment result, and if the vehicle control information determines that the vehicle needs to be emergently braked, the brake controller controls a speed reducing wheel and a transmission mechanism to enable the brake pressure of a brake master cylinder to achieve the maximum braking of the vehicle.
Further, before determining the vehicle control information, the method further includes: receiving sound information of a driver sent by a sound sensor; receiving acceleration information of a brake pedal sent by a pedal sensor; and determining vehicle control information according to the grip strength information and the sound information or the acceleration information, and controlling the vehicle to brake according to the vehicle control information.
Specifically, the brake controller judges whether the vehicle needs to be braked or not by combining received sound information or acceleration information of a brake pedal on the basis of received grip strength information and determined grip strength threshold information, vehicle control information is determined according to a judgment result, and if the vehicle control information determines that the vehicle needs to be emergently braked, the brake controller controls a speed reducing wheel and a transmission mechanism to enable the brake pressure of a brake master cylinder to be maximum to brake the vehicle.
According to the technical scheme of the embodiment, the grip strength information on the vehicle steering wheel sent by the grip strength sensor is received; receiving face information of a driver sent by a camera; and determining vehicle control information according to the grip strength information and the face information, and controlling the vehicle to brake according to the vehicle control information. The vehicle control information is determined by combining the facial information of the driver and the grip strength information on the steering wheel, the appropriate threshold value condition for judging the grip strength information is selected according to the facial information of the driver, so that the driver can brake in time when in a stress state, the problem of low braking efficiency caused by that the vehicle only depends on the grip strength information of the steering wheel to brake and judge when in danger is solved, the re-establishment of triggering braking standards for different drivers is avoided, the robustness of a braking control system in the vehicle driving process is improved, and the driving safety of the vehicle when in danger is improved.
Example four
Fig. 4 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention, as shown in fig. 4, the vehicle includes a grip strength sensor 31, a camera 32, a sound sensor 33, a pedal sensor 34, a controller 35, a storage device 36, an input device 37, and an output device 38; the number of the grip strength sensor 31, the camera 32, the sound sensor 33, the pedal sensor 34 and the controller 35 in the vehicle may be one or more, and fig. 4 exemplifies one grip strength sensor 31, camera 32, sound sensor 33, pedal sensor 34 and controller 35; grip sensor 31, camera 32, sound sensor 33, pedal sensor 34, controller 35, storage device 36, input device 37, and output device 38 in the vehicle may be connected by a bus or other means, as exemplified by the bus connection in fig. 4.
And the grip sensor 31 is used for collecting grip information on a steering wheel of the vehicle.
And the camera 32 is used for collecting the facial information of the driver.
And a sound sensor 33 for collecting sound information of the driver.
And a pedal sensor 34 for collecting acceleration information of the brake pedal.
The storage device 36 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the braking control method in the embodiment of the present invention. The controller 35 executes various functional applications and data processing of the vehicle, that is, implements the above-described brake control method, by executing software programs, instructions, and modules stored in the storage device 36.
The storage device 36 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage device 36 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage device 36 may further include memory remotely located from the controller 35, which may be connected to the vehicle over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 37 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the vehicle. The output device 38 may include a display device such as a display screen.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a braking control method, the method including:
receiving grip strength information on a vehicle steering wheel sent by a grip strength sensor;
receiving face information of a driver sent by a camera;
and determining vehicle control information according to the grip strength information and the face information, and controlling the vehicle to brake according to the vehicle control information.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also execute the relevant operations in the braking control method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the above search apparatus, each included unit and module are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A brake control system, characterized by comprising: a grip sensor, a camera and a brake controller,
the grip sensor is arranged on a vehicle steering wheel and used for acquiring grip information on the vehicle steering wheel and sending the grip information to the brake controller;
the camera is arranged on the surface of the vehicle steering wheel and used for acquiring the facial information of a driver and sending the facial information to the brake controller;
and the brake controller is used for determining vehicle control information according to the grip strength information and the face information and controlling the vehicle to brake.
2. The system of claim 1, wherein the facial information comprises: expression information, distance information between the face of the driver and the steering wheel of the vehicle, and driver identity characteristic information;
the driver identity characteristic information comprises gender characteristic information and age characteristic information.
3. The system of claim 2, wherein the brake controller is further configured to determine grip threshold information based on the driver identity characteristic information;
the grip strength threshold information comprises a first threshold, a second threshold and a third threshold;
the first threshold is greater than the second threshold and the third threshold, and the second threshold is different from the third threshold.
4. The system of claim 3, wherein the brake controller is specifically configured to:
when the grip strength information is larger than the first threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure;
when the grip strength information is larger than the second threshold value, and the expression information is panic and/or the distance information is smaller than a preset distance threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure;
and when the grip strength information is larger than the second threshold value and the face information does not contain complete face information, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure.
5. The system of claim 3, wherein the brake control system further comprises: a sound sensor and a pedal sensor, wherein the sound sensor and the pedal sensor are arranged on the base plate,
the sound sensor is used for acquiring sound information of the driver and sending the sound information to the brake controller;
the pedal sensor is arranged on a brake pedal of the vehicle and used for acquiring acceleration information of the brake pedal and sending the acceleration information to the brake controller;
and the brake controller is used for determining vehicle control information according to the grip strength information and the sound information or the acceleration information and controlling the vehicle to brake.
6. The system of claim 5, wherein the brake controller is specifically configured to:
when the grip strength information is larger than the second threshold value and the sound information is larger than a preset decibel threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum braking pressure;
and when the grip strength information is greater than the third threshold value and the acceleration information is greater than a preset acceleration threshold value, determining that the vehicle control information is emergency braking, and controlling the vehicle to brake at the maximum brake pressure.
7. A brake control method characterized by comprising:
receiving grip strength information on a vehicle steering wheel sent by a grip strength sensor;
receiving face information of a driver sent by a camera;
and determining vehicle control information according to the grip strength information and the face information, and controlling the vehicle to brake according to the vehicle control information.
8. The method of claim 7, further comprising:
receiving sound information of the driver sent by a sound sensor;
receiving acceleration information of a brake pedal sent by a pedal sensor;
and determining vehicle control information according to the grip strength information and the sound information or the acceleration information, and controlling the vehicle to brake according to the vehicle control information.
9. A vehicle, characterized in that the vehicle comprises:
the grip sensor is used for acquiring grip information on a vehicle steering wheel;
the camera is used for collecting the facial information of the driver;
the sound sensor is used for collecting sound information of a driver;
the pedal sensor is used for acquiring acceleration information of the brake pedal;
at least one controller, the controller comprising at least a brake controller;
storage means for storing one or more programs;
when the plurality of programs are executed by the at least one controller, the at least one controller is caused to implement the brake control method according to any one of claims 7 to 8.
10. A storage medium containing computer executable instructions for performing the brake control method according to any one of claims 7 to 8 when executed by a computer processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010758547.3A CN111873963A (en) | 2020-07-31 | 2020-07-31 | Brake control system, method, vehicle, and storage medium |
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| CN112874298A (en) * | 2021-04-15 | 2021-06-01 | 广州市交通技师学院(广州市交通高级技工学校) | Intelligent control system for preventing accelerator from being stepped on mistakenly |
| CN113257403A (en) * | 2021-04-26 | 2021-08-13 | 武汉中科医疗科技工业技术研究院有限公司 | Medical device control method, system, apparatus, computer device and storage medium |
| CN114852022A (en) * | 2022-07-05 | 2022-08-05 | 国汽智控(北京)科技有限公司 | Vehicle and automatic emergency braking method, device, system and storage medium thereof |
| CN114954383A (en) * | 2021-02-25 | 2022-08-30 | 博泰车联网科技(上海)股份有限公司 | Control method and system for preventing accelerator from being stepped on by mistake |
| CN115019832A (en) * | 2022-05-27 | 2022-09-06 | 中国第一汽车股份有限公司 | Emotion analysis-based wake-up-free interaction method and device for vehicle |
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