CN115214573A - Remote braking method and system - Google Patents
Remote braking method and system Download PDFInfo
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- CN115214573A CN115214573A CN202210417142.2A CN202210417142A CN115214573A CN 115214573 A CN115214573 A CN 115214573A CN 202210417142 A CN202210417142 A CN 202210417142A CN 115214573 A CN115214573 A CN 115214573A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000012544 monitoring process Methods 0.000 claims abstract description 44
- 230000000977 initiatory effect Effects 0.000 claims abstract description 3
- 238000012795 verification Methods 0.000 claims description 33
- 238000012790 confirmation Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 13
- 230000001960 triggered effect Effects 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 206010052770 Coma states Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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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
- B60T7/16—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
- B60Q1/448—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal specially adapted for vehicles with ABS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/52—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating emergencies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides a remote braking method and a system, wherein the method comprises the following steps: initiating a first remote braking mode or a second remote braking mode; in the first remote braking mode, sending an EMB controller state signal and a driver monitoring video to a management background, and enabling the management background to determine whether to issue a second braking instruction according to the EMB controller state signal and the driver monitoring video; when a second braking instruction is received, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle; and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and performing a vehicle locking operation on the target vehicle after the target vehicle stops. The remote braking under different safety problems is realized by providing different remote braking modes, so that the safety of the vehicle and the life and property safety of drivers are protected.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a remote braking method and a remote braking system.
Background
With the growth of the automobile market and the improvement of vehicle intelligence, vehicles become one of the most common vehicles. However, with the increase of vehicles, many safety problems also occur, such as the theft of the vehicles, the incapability of controlling the braking of the vehicles by drivers for various reasons, and the incapability of listening to the command of parking by the traffic management department by the drivers; in view of the foregoing safety problems, a method for remotely controlling a vehicle to brake is needed to ensure the safety of the vehicle and the safety of the driver's lives and properties.
Disclosure of Invention
In view of this, embodiments of the present invention provide a remote braking method and system, so as to achieve the purpose of remotely controlling a vehicle to brake in view of a safety problem.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the invention discloses a remote braking method in a first aspect, wherein the method is suitable for an Electronic Mechanical Brake (EMB) controller of a target vehicle, and comprises the following steps:
starting a first remote braking mode or a second remote braking mode, wherein the first remote braking mode is started when a specific key is detected to be triggered and a triggering rule is met, the second remote braking mode is started when a first braking instruction sent by a management background is received, and the first braking instruction is sent by the management background when a request of a specific object is received;
in the first remote braking mode, an EMB controller state signal and a driver monitoring video are sent to the management background, and the management background determines whether to issue a second braking instruction according to the EMB controller state signal and the driver monitoring video;
when the second braking instruction is received, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle;
and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and locking the target vehicle after the target vehicle stops.
Preferably, the sending the state signal of the EMB controller and the driver monitoring video to the management background, so that the management background determines whether to issue the second braking instruction according to the state signal of the EMB controller and the driver monitoring video includes:
sending an EMB controller state signal and a driver monitoring video to the management background;
receiving a second braking instruction sent by the management background when the abnormal state of the driver is determined, wherein the state of the driver is determined by the management background according to the driver monitoring video;
or,
receiving verification information sent by the management background, and displaying the verification information in an instrument panel, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of a driver is determined to be normal;
if a confirmation instruction aiming at the verification information is detected, the confirmation instruction is sent to the management background, and a second braking instruction sent by the management background is received, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
Preferably, the process of executing a braking logic to brake the target vehicle includes:
and increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle according to the vehicle speed of the target vehicle and a preset braking force slope, and lightening a danger indicator lamp and a braking tail lamp of the target vehicle, wherein the braking force of the target vehicle is increased based on the preset braking force slope, and the preset braking force slope is obtained by looking up a table according to the vehicle speed of the target vehicle.
Preferably, the method further comprises:
in the process of increasing the braking force of the target vehicle, under the condition that the target vehicle is detected to have a wheel locking trend, carrying out ABS control on the target vehicle according to ABS control logic of an anti-lock braking system;
starting an Advanced Driving Assistance System (ADAS) under the condition that the driver cannot perform steering control according to the driver monitoring video;
and combining the vehicle speed, the preset braking force slope and the road surface information acquired by the ADAS, increasing the braking force of the target vehicle and reducing the torque of the target vehicle so as to brake the target vehicle.
Preferably, the method further comprises:
and after the target vehicle is locked, sending the position information of the target vehicle to the management background.
Preferably, the method further comprises:
and in the process of braking the target vehicle, displaying warning information on an instrument panel and/or playing warning prompt tones, wherein the warning information is used for indicating that the target vehicle is subjected to remote braking control.
Preferably, the activation of the first remote braking mode or the second remote braking mode comprises:
starting a first remote braking mode when a specific key is detected to be continuously triggered for a preset time length;
and when a first braking instruction sent by the management background is received, starting a second remote braking mode.
A second aspect of an embodiment of the present invention discloses a remote braking system adapted to an electromechanical brake EMB controller of a target vehicle, the remote braking system including:
the system comprises a starting unit, a first remote braking mode and a second remote braking mode, wherein the first remote braking mode is started when a specific key is detected to be triggered and a triggering rule is met, the second remote braking mode is started when a first braking instruction sent by a management background is received, and the first braking instruction is sent by the management background when a request of a specific object is received;
the communication unit is used for sending an EMB controller state signal and a driver monitoring video to the management background in the first remote braking mode, so that the management background determines whether to issue a second braking instruction according to the EMB controller state signal and the driver monitoring video;
the braking unit is used for executing braking logic to brake the target vehicle according to the vehicle state of the target vehicle when the second braking instruction is received;
the brake unit is further configured to: and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and locking the target vehicle after the target vehicle stops.
Preferably, the communication unit includes:
the sending module is used for sending the state signal of the EMB controller and the driver monitoring video to the management background;
the communication module is used for receiving a second braking instruction sent by the management background when the abnormal state of the driver is determined, wherein the state of the driver is determined by the management background according to the monitoring video of the driver; or receiving verification information sent by the management background, and displaying the verification information in an instrument panel, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of a driver is determined to be normal; if a confirmation instruction aiming at the verification information is detected, the confirmation instruction is sent to the management background, and a second braking instruction sent by the management background is received, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
Preferably, the braking unit executing braking logic to brake the target vehicle is specifically configured to: and increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle according to the vehicle speed of the target vehicle and a preset braking force slope, and lightening a danger indicator lamp and a braking tail lamp of the target vehicle, wherein the braking force of the target vehicle is increased based on the preset braking force slope, and the preset braking force slope is obtained by looking up a table according to the vehicle speed of the target vehicle.
Based on the above-mentioned remote braking method and system provided by the embodiment of the invention, the method is as follows: initiating a first remote braking mode or a second remote braking mode; in the first remote braking mode, sending the state signal of the EMB controller and the driver monitoring video to a management background, and enabling the management background to determine whether to issue a second braking instruction according to the state signal of the EMB controller and the driver monitoring video; when a second braking instruction is received, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle; and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and performing a vehicle locking operation on the target vehicle after the target vehicle stops. The driver actively triggers the first remote braking mode to remotely brake the target vehicle, and the driver directly starts the second remote braking mode to remotely brake the target vehicle when receiving a request of a specific object. The remote braking under different safety problems is realized by providing different remote braking modes, so that the safety of the vehicle and the life and property safety of drivers are protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a remote braking method according to an embodiment of the present invention;
FIG. 2 is a logic diagram of a remote braking method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a portion of a device connection of a target vehicle according to an embodiment of the present invention;
fig. 4 is a block diagram of a remote braking system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
As can be seen from the background art, when a vehicle is stolen, a driver cannot control the vehicle to brake due to various reasons, and the driver does not listen to the command of the management department to stop the vehicle, a method for remotely controlling the vehicle to brake is needed to ensure the safety of the vehicle and the life and property safety of the driver.
Therefore, embodiments of the present invention provide a remote braking method and system, which provide a first remote braking mode and a second remote braking mode, where the first remote braking mode is activated to perform remote braking on a target vehicle when a driver actively triggers remote braking, and the second remote braking mode may be directly activated to perform remote braking on the target vehicle when a request of a specific object is received. Remote braking under different safety problems is realized through different remote braking modes, so that the safety of vehicles and the safety of lives and properties of drivers are protected.
By applying some embodiments of the present invention, one of the actual application scenarios is as follows: after the target vehicle is stolen, or after the drunk driver continues to drive the target vehicle to escape without listening to the instruction of the traffic control department, the second remote braking mode can be directly started to remotely brake the target vehicle when the request of the traffic control department is received, and the target vehicle is locked after being braked and stopped so as to avoid the current driver from escaping from the target vehicle. By applying some embodiments of the present invention, another actual application scenario is as follows: the driver can not control the vehicle brake for some reason, the first remote brake mode is started when the driver actively triggers the remote brake, and the target vehicle is remotely braked in the first remote brake mode, so that the personal safety of the driver is ensured.
The present invention will be described in detail below with reference to examples.
It should be noted that the remote braking method and system provided by the embodiment of the present invention are applicable to an Electromechanical Brake (EMB) controller of a target vehicle.
Referring to fig. 1, a flowchart of a remote braking method provided by an embodiment of the present invention is shown, where the remote braking method includes the following steps:
step S101: the first remote braking mode or the second remote braking mode is activated.
It should be noted that the first remote braking mode is started when the EMB controller detects that the specific key is triggered and meets the trigger rule, the second remote braking mode is started when the EMB controller receives a first braking instruction sent by the management background, and the first braking instruction is sent by the management background when receiving a request of a specific object.
In the specific implementation process of the step S101, the EMB controller starts a first remote braking mode when detecting that a specific key of the target vehicle is continuously triggered for a preset duration; for example: the special key is a one-key help-seeking switch, and the EMB controller starts a first remote braking mode when detecting that the one-key help-seeking switch is continuously triggered for more than 3 seconds; wherein the triggering rule is: the specific key is continuously triggered for a preset time. After the first remote braking mode is activated, step S102 and step S103 are executed.
It should be noted that the triggering rule is intended to prevent the driver from mistakenly touching the specific key.
And the EMB controller starts a second remote braking mode when receiving a first braking instruction sent by the management background. After the second remote braking mode is activated, step S104 is performed.
It is understood that a particular object (such as a traffic management department) may send a request to the management back-office for remote control of the braking of the target vehicle; when the management background receives a request sent by a specific object, the management background directly completes a handshake process (without checking by a driver) with a TBOX (intelligent vehicle-mounted terminal) of a target vehicle, and the management background sends a first braking instruction to the EMB controller through the TBOX of the target vehicle, so that the EMB controller starts a second remote braking mode.
In some embodiments, the TBOX of the target vehicle may communicate with the management background in a 5G or 4G manner, and the communication manner used between the TBOX and the management background is not limited in the embodiments of the present invention.
Step S102: and in the first remote braking mode, sending the state signal of the EMB controller and the driver monitoring video to a management background, and enabling the management background to determine whether to issue a second braking instruction according to the state signal of the EMB controller and the driver monitoring video.
In the process of specifically implementing step S102, after the EMB controller starts the first remote braking mode, the EMB controller acquires an EMB controller state signal and a driver monitoring video, where the driver monitoring video is acquired by a vehicle-mounted camera disposed in the target vehicle.
The EMB controller sends an EMB controller state signal and a driver monitoring video to a management background through the TBOX, for example: and the EMB controller sends the request signal to the TBOX, and the EMB controller sends the request signal carrying the state signal of the EMB controller and the driver monitoring video to a management background through the TBOX.
In some embodiments, after receiving the state signal of the EMB controller and the driver monitoring video, the management background determines whether the EMB controller is normal according to the state signal of the EMB controller, and determines whether the driver state is normal according to the driver monitoring video.
When the management background determines that the state of the EMB controller is normal (the EMB controller works normally) and the state of the driver is abnormal, the management background directly completes a handshake process with the TBOX of the target vehicle (without passing through driver verification) and issues a second control instruction to the EMB controller, wherein the abnormal state of the driver indicates that the driver cannot autonomously complete the handshake process between the management background and the TBOX, for example: and when the driver is in a coma state or a poor state, the management background directly skips the driver verification and TBOX to complete the handshake process and issue a second control instruction.
When the management background determines that the state of the EMB controller is normal and the state of a driver is normal, the management background needs to guide the driver to complete a handshake flow between the management background and the TBOX in a manner of sending verification information; and after the management background and the TBOX complete a handshake process, the management background issues a second brake instruction to the EMB controller.
In some embodiments, after the EMB controller sends the EMB controller state signal and the driver monitoring video to the management background, the EMB controller receives a second braking instruction sent by the management background when the driver state is determined to be abnormal, wherein the driver state is determined by the management background according to the driver monitoring video.
That is, if the management background determines that the state of the EMB controller is normal and the state of the driver is abnormal, the management background skips the check and directly completes the handshake process with the TBOX and issues a second braking instruction, and at this time, the EMB controller receives the second braking instruction through the TBOX.
In other embodiments, after the EMB controller sends the state signal of the EMB controller and the driver monitoring video to the management background, the EMB controller receives verification information sent by the management background and displays the verification information in the dashboard, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of the driver is determined to be normal; and if the EMB controller detects a confirmation instruction aiming at the verification information, the confirmation instruction is sent to the management background, and a second braking instruction sent by the management background is received, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
That is, if the management back office determines that the EMB controller is in a normal state and the driver is in a normal state, the management back office sends an authentication message through the TBOX, and the authentication message is displayed on the meter to guide the driver to perform the verification of the handshake procedure. After detecting the confirmation instruction aiming at the verification information, the EMB controller sends the confirmation instruction to the management background through the TBOX. And when the management background receives the confirmation command, the management background issues a second braking command to the EMB controller through the TBOX.
For example: if the management background determines that the state of the EMB controller is normal and the state of the driver is normal, the management background sends a verification message through the TBOX, and the verification message that the management background requests to control the vehicle brake control and whether the management background receives the verification message is displayed on an instrument panel; after the driver confirms the verification information through the appointed key, the confirmation instruction is sent to the management background through the TBOX, the management background completes the handshake process with the TBOX when receiving the confirmation instruction, and the management background sends the second brake instruction to the EMB controller through the TBOX.
Step S103: and when the second braking instruction is received, executing braking logic to brake the target vehicle according to the vehicle state of the target vehicle.
In the process of implementing step S103 specifically, when the EMB controller receives a second braking instruction sent by the management background, the EMB controller executes a braking logic to brake the target vehicle according to a vehicle state of the target vehicle, where the vehicle state includes but is not limited to: vehicle speed, steering wheel angle information, acceleration information, accelerator opening information, and the like.
In some embodiments, the EMB controller increases the braking force and decreases the torque of the target vehicle to brake the target vehicle, and lights a hazard lamp and a brake tail lamp of the target vehicle, according to the vehicle speed and the preset braking force gradient of the target vehicle.
It should be noted that the preset braking force slope may be a calibration quantity obtained by looking up a table, specifically, the preset braking force slope is obtained by looking up the table according to the vehicle speed of the target vehicle; and increasing the braking force of the target vehicle based on the preset braking force slope obtained by the table lookup, or gradually increasing the braking force of the target vehicle according to the preset braking force slope obtained by the table lookup.
Specifically, the EMB controller gradually increases the braking force by the four-wheel caliper motor of the target vehicle according to the vehicle speed and the preset braking force gradient of the target vehicle, and brakes the target vehicle by transmitting a torque down request signal to the powertrain of the target vehicle to reduce the torque (until down to 0 n.m), and requesting the powertrain to cut off the power of the target vehicle. During braking of the target vehicle, the EMB controller requests the body controller of the target vehicle to illuminate the hazard lamps and controls the illumination of the brake tail lamps by transmitting an espbrlmpctrl signal to the body controller.
In some embodiments, the EMB controller brakes the target vehicle in the first remote braking mode until the target vehicle stops (after the target vehicle is braked), and controls the target vehicle to park.
It should be noted that, during the braking process of the vehicle, a wheel lock may occur, and preferably, during the process of increasing the braking force of the target vehicle, when the EMB controller detects that the wheel lock tendency of the target vehicle occurs, the EMB controller performs ABS control on the target vehicle according to an Antilock Brake System (ABS) control logic.
It can be understood that, when the target vehicle is braked, in order to further guarantee the personal safety of the driver, the condition whether the driver can control the steering wheel of the vehicle needs to be considered; and to perform corresponding measures in case the driver is unable to control the steering wheel of the vehicle. Preferably, in the process of increasing the braking force of the target vehicle, the EMB controller determines whether the driver can perform steering control according to the driver monitoring video; under the condition that the driver cannot perform steering control according to the driver monitoring video, starting an Advanced Driving Assistance System (ADAS) of the target vehicle by the EMB controller, and acquiring road surface information (or peripheral information of the target vehicle) by the ADAS; the EMB controller increases the braking force of the target vehicle and decreases the torque of the target vehicle in combination with the vehicle speed, the preset braking force gradient, and the road surface information acquired by the ADAS to brake the target vehicle. That is, if it is determined that the driver cannot perform steering control during braking of the target vehicle, the ADAS is combined to assist the target vehicle in decelerating and simultaneously achieving the parking close to the side.
In some embodiments, the EMB controller displays an alarm message on the dashboard and/or plays an alarm tone during braking of the target vehicle, wherein the alarm message indicates that the target vehicle is under remote braking control. For example: and in the process of braking the target vehicle, the EMB controller displays warning information of 'vehicle deceleration control is taken over and please keep the vehicle direction' on an instrument panel and plays a warning prompt tone.
Step S104: and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and performing a vehicle locking operation on the target vehicle after the target vehicle stops.
In the process of specifically implementing step S104, after the EMB controller starts the second remote braking mode, the EMB controller executes a braking logic to brake the target vehicle according to the vehicle state of the target vehicle, and it should be noted that a specific implementation manner of executing the braking logic to brake the target vehicle may refer to the content in step S103, which is not described herein again.
In the second remote braking mode, after the target vehicle stops, the EMB controller performs a vehicle locking operation on the target vehicle, for example: in the second remote braking mode, after the target vehicle stops, the EMB controller controls the door lock of the target vehicle to lock the door, preventing the current driver from leaving the target vehicle.
It can be understood that after the target vehicle is stolen, or after the drunk driver continues to drive the target vehicle to escape without listening to the instruction of the traffic control department, a specific object such as the traffic control department can enable the EMB controller to start the second remote braking mode through the management background, and the target vehicle needs to be quickly found after stopping. Preferably, in the second remote braking mode, after the target vehicle is locked, the EMB controller sends the position information of the target vehicle to the management background to assist relevant persons to quickly find the target vehicle.
In an embodiment of the present invention, a first remote braking mode and a second remote braking mode are provided, the first remote braking mode is activated to remotely brake the target vehicle when the driver actively triggers remote braking, and the second remote braking mode may be directly activated to remotely brake the target vehicle when a request of a specific object is received. Remote braking under different safety problems is realized through different remote braking modes, so that the safety of vehicles and the safety of lives and properties of drivers are protected.
To better explain the contents of fig. 1 in the above-described embodiment of the invention, it is illustrated by a logic diagram of a remote braking method shown in fig. 2. In fig. 2, the overall execution content of the remote braking method is divided into a remote braking determination portion 201 and a deceleration control portion 202;
for the remote braking judgment part 201, the management background is communicated with the target vehicle through 5G, and when the management background determines that the target vehicle needs to be braked remotely, the management background issues a first braking instruction or a second braking instruction to the target vehicle so as to brake the target vehicle; the specific manner of issuing the first braking command or the second braking command is described in detail in the steps in fig. 1 in the above embodiment of the present invention, and is not described herein again.
With the deceleration control portion 202, the braking force of the target vehicle is increased by the four-wheel caliper motor of the target vehicle, the torque of the target vehicle is reduced by the powertrain of the target vehicle, and the brake tail lamp, the hazard lamp, and the lock control (i.e., whether the lock operation is performed) are turned on by the body controller of the target vehicle.
As can be seen from the above description in fig. 1 of the embodiment of the present invention, the EMB controller of the target vehicle may communicate with devices such as the vehicle-mounted camera, the specific key, the power system, and the vehicle body controller, and in order to better explain the connection relationship between the foregoing objects, the example is illustrated by the connection diagram of a part of devices of the target vehicle shown in fig. 3.
As shown in fig. 3, the target vehicle includes at least: the system comprises a vehicle-mounted camera 100, a specific key 200, an EMB controller 300, a power system 400, a vehicle body controller 500, a TBOX600 and an instrument panel 700; the EMB controller 300 is connected to the vehicle-mounted camera 100, the specific key 200, the power system 400, the vehicle body controller 500, and the TBOX600 is connected to the dashboard 700.
It should be noted that the vehicle body controller 500 can be used for at least lighting a brake tail lamp, lighting a hazard indicator lamp, and turning off a lock.
In correspondence with the remote braking method provided by the embodiment of the present invention described above, referring to fig. 4, the embodiment of the present invention further provides a structural block diagram of a remote braking system adapted to an EMB controller of a target vehicle, the remote braking system including: a starting unit 401, a communication unit 402, and a braking unit 403;
the starting unit 401 is configured to start a first remote braking mode or a second remote braking mode, where the first remote braking mode is started when it is detected that the specific key is triggered and a trigger rule is met, the second remote braking mode is started when a first braking instruction sent by the management background is received, and the first braking instruction is sent by the management background when a request of the specific object is received.
In a specific implementation, the starting unit 401 is specifically configured to: starting a first remote braking mode when a specific key is detected to be continuously triggered for a preset time length; and starting a second remote braking mode when a first braking instruction sent by the management background is received.
And the communication unit 402 is configured to send the state signal of the EMB controller and the driver monitoring video to the management background in the first remote braking mode, so that the management background determines whether to issue the second braking instruction according to the state signal of the EMB controller and the driver monitoring video.
And a braking unit 403, configured to execute a braking logic to brake the target vehicle according to the vehicle state of the target vehicle when receiving the second braking instruction.
The brake unit 403 is also used to: and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and performing a vehicle locking operation on the target vehicle after the target vehicle stops.
In a specific implementation, the braking unit 403, which executes braking logic to brake the target vehicle, is specifically configured to: and according to the speed and the preset braking force slope of the target vehicle, increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle, and lightening a danger indicator lamp and a braking tail lamp of the target vehicle, wherein the braking force of the target vehicle is increased based on the preset braking force slope, and the preset braking force slope is obtained by looking up a table according to the speed of the target vehicle.
Preferably, the braking unit 403 is also used for: in the process of increasing the braking force of the target vehicle, under the condition that the target vehicle is detected to have a wheel locking trend, carrying out ABS control on the target vehicle according to ABS control logic; starting ADAS under the condition that the driver cannot perform steering control according to the driver monitoring video; and combining the vehicle speed, the preset braking force slope and the road surface information acquired by the ADAS, increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle.
Preferably, the braking unit 403 is also used for: and after the target vehicle is locked, sending the position information of the target vehicle to a managed background.
Preferably, the braking unit 403 is also used for: and displaying alarm information on an instrument panel and/or playing an alarm prompt tone in the process of braking the target vehicle, wherein the alarm information is used for indicating that the target vehicle is subjected to remote braking control.
In an embodiment of the present invention, a first remote braking mode and a second remote braking mode are provided, the first remote braking mode is activated to remotely brake the target vehicle when the driver actively triggers remote braking, and the second remote braking mode may be directly activated to remotely brake the target vehicle when a request of a specific object is received. Remote braking under different safety problems is realized through different remote braking modes, so that the safety of vehicles and the safety of lives and properties of drivers are protected.
Preferably, in conjunction with the content shown in fig. 4, the communication unit 402 includes: the system comprises a sending module and a communication module, wherein the execution principle of each module is as follows:
and the sending module is used for sending the state signal of the EMB controller and the driver monitoring video to the management background.
The communication module is used for receiving a second braking instruction sent by the management background when the abnormal state of the driver is determined, wherein the state of the driver is determined by the management background according to the monitoring video of the driver; or receiving verification information sent by the management background, and displaying the verification information in the instrument panel, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of the driver is determined to be normal; and if a confirmation instruction aiming at the verification information is detected, sending the confirmation instruction to the management background, and receiving a second braking instruction sent by the management background, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
Preferably, the embodiment of the present invention further provides an electronic device, a processor and a memory, where the processor and the memory are connected through a communication bus; the processor is used for calling and executing the program stored in the memory; a memory for storing a program for implementing the remote braking method as disclosed in the above method embodiments.
Preferably, an embodiment of the present invention further provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are configured to execute the remote braking method disclosed in the foregoing method embodiment.
In summary, embodiments of the present invention provide a remote braking method and system, which can implement remote braking under different safety problems through different remote braking modes, so as to protect vehicle safety and the life and property safety of drivers.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A remote braking method for an electromechanical brake EMB controller of a target vehicle, the method comprising:
starting a first remote braking mode or a second remote braking mode, wherein the first remote braking mode is started when a specific key is detected to be triggered and a triggering rule is met, the second remote braking mode is started when a first braking instruction sent by a management background is received, and the first braking instruction is sent by the management background when a request of a specific object is received;
in the first remote braking mode, an EMB controller state signal and a driver monitoring video are sent to the management background, and the management background determines whether to issue a second braking instruction according to the EMB controller state signal and the driver monitoring video;
executing braking logic to brake the target vehicle according to the vehicle state of the target vehicle when the second braking instruction is received;
and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and locking the target vehicle after the target vehicle stops.
2. The method of claim 1, wherein sending an EMB controller status signal and a driver monitoring video to the management back-end, so that the management back-end determines whether to issue a second braking instruction according to the EMB controller status signal and the driver monitoring video comprises:
sending an EMB controller state signal and a driver monitoring video to the management background;
receiving a second braking instruction sent by the management background when the abnormal state of the driver is determined, wherein the state of the driver is determined by the management background according to the driver monitoring video;
or,
receiving verification information sent by the management background, and displaying the verification information in an instrument panel, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of a driver is determined to be normal;
if a confirmation instruction aiming at the verification information is detected, the confirmation instruction is sent to the management background, and a second braking instruction sent by the management background is received, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
3. The method of claim 1, wherein executing braking logic to brake the target vehicle comprises:
and increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle according to the vehicle speed of the target vehicle and a preset braking force slope, and lightening a danger indicator lamp and a braking tail lamp of the target vehicle, wherein the braking force of the target vehicle is increased based on the preset braking force slope, and the preset braking force slope is obtained by looking up a table according to the vehicle speed of the target vehicle.
4. The method of claim 3, further comprising:
in the process of increasing the braking force of the target vehicle, under the condition that the target vehicle is detected to have a wheel locking trend, carrying out ABS control on the target vehicle according to ABS control logic of an anti-lock braking system;
starting an Advanced Driving Assistance System (ADAS) under the condition that the driver cannot perform steering control according to the driver monitoring video;
and combining the vehicle speed, the preset braking force slope and the road surface information acquired by the ADAS, increasing the braking force of the target vehicle and reducing the torque of the target vehicle so as to brake the target vehicle.
5. The method of claim 1, further comprising:
and after the target vehicle is locked, sending the position information of the target vehicle to the management background.
6. The method of claim 1, further comprising:
and displaying warning information on an instrument panel and/or playing warning prompt tones in the process of braking the target vehicle, wherein the warning information is used for indicating that the target vehicle is subjected to remote braking control.
7. The method of claim 1, wherein initiating the first remote braking mode or the second remote braking mode comprises:
starting a first remote braking mode when a specific key is detected to be continuously triggered for a preset time length;
and when a first braking instruction sent by the management background is received, starting a second remote braking mode.
8. A remote brake system adapted for use with an electromechanical brake EMB controller of a target vehicle, the remote brake system comprising:
the system comprises a starting unit, a first remote braking mode and a second remote braking mode, wherein the first remote braking mode is started when a specific key is detected to be triggered and a triggering rule is met, the second remote braking mode is started when a first braking instruction sent by a management background is received, and the first braking instruction is sent by the management background when a request of a specific object is received;
the communication unit is used for sending an EMB controller state signal and a driver monitoring video to the management background in the first remote braking mode, so that the management background determines whether to issue a second braking instruction according to the EMB controller state signal and the driver monitoring video;
the braking unit is used for executing braking logic to brake the target vehicle according to the vehicle state of the target vehicle when the second braking instruction is received;
the brake unit is further configured to: and in the second remote braking mode, according to the vehicle state of the target vehicle, executing braking logic to brake the target vehicle, and locking the target vehicle after the target vehicle stops.
9. The remote brake system as defined in claim 8, wherein the communication unit comprises:
the sending module is used for sending the state signal of the EMB controller and the driver monitoring video to the management background;
the communication module is used for receiving a second braking instruction sent by the management background when the abnormal state of the driver is determined, wherein the state of the driver is determined by the management background according to the monitoring video of the driver; or receiving verification information sent by the management background, and displaying the verification information in an instrument panel, wherein the verification information is sent by the management background when the state of the EMB controller is determined to be normal and the state of a driver is determined to be normal; if a confirmation instruction for the verification information is detected, the confirmation instruction is sent to the management background, and a second braking instruction sent by the management background is received, wherein the second braking instruction is sent by the management background when the confirmation instruction is received.
10. Remote braking system according to claim 8, characterized in that the braking unit executing braking logic to brake the target vehicle is specifically configured to: and increasing the braking force of the target vehicle and reducing the torque of the target vehicle to brake the target vehicle according to the vehicle speed of the target vehicle and a preset braking force slope, and lightening a danger indicator lamp and a braking tail lamp of the target vehicle, wherein the braking force of the target vehicle is increased based on the preset braking force slope, and the preset braking force slope is obtained by looking up a table according to the vehicle speed of the target vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210417142.2A CN115214573A (en) | 2022-04-20 | 2022-04-20 | Remote braking method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210417142.2A CN115214573A (en) | 2022-04-20 | 2022-04-20 | Remote braking method and system |
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