CN113879329B - Active safety braking method and system for vehicle, readable storage medium and vehicle - Google Patents
Active safety braking method and system for vehicle, readable storage medium and vehicle Download PDFInfo
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- CN113879329B CN113879329B CN202110940192.4A CN202110940192A CN113879329B CN 113879329 B CN113879329 B CN 113879329B CN 202110940192 A CN202110940192 A CN 202110940192A CN 113879329 B CN113879329 B CN 113879329B
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- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 6
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention provides a vehicle active safety braking method, a system, a readable storage medium and a vehicle, wherein the method comprises the following steps: when the whole vehicle is in a power-on state, acquiring hand brake state information and vehicle speed information of a target vehicle; judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information; if yes, judging whether the hand brake of the target vehicle is pulled up or not according to the hand brake state information; if the hand brake is not pulled up, judging whether the vehicle owner is in the cab or not; and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction. According to the active safety braking method for the vehicle, when the vehicle owner temporarily leaves the vehicle, if the vehicle owner forgets to switch the gear of the vehicle to the parking gear and does not pull up the hand brake, the vehicle can be actively braked, and safety accidents such as damage or casualties of the vehicle caused by unexpected sliding or unexpected running of the vehicle are prevented.
Description
Technical Field
The invention relates to the technical field of whole vehicle control, in particular to a vehicle active safety braking method and system, a readable storage medium and a vehicle.
Background
With the continuous improvement of the living standard of people, the number of automobiles is increased year by year, the popularization of automobiles creates convenience for the human society life, and meanwhile, the safety problem of the automobiles is also receiving more and more attention from people.
However, in daily driving, a car owner often forgets to record safe parking operations such as electric key pulling, handle braking, parking gear switching and the like when the car owner needs to get off due to temporary accidents, and the car owner easily slides due to insufficient braking force of the car after leaving a door due to unobvious or unobtrusive gradient of a road surface, so that the car is damaged or casualties and other safety accidents.
Disclosure of Invention
Based on the above, an object of the present invention is to provide a vehicle active safety braking method, system, readable storage medium and vehicle, so as to solve the above problems.
According to the active safety braking method of the vehicle, which is provided by the invention, the method is applied to an auxiliary braking system of the vehicle and comprises the following steps:
when the whole vehicle is in a power-on state, acquiring hand brake state information and vehicle speed information of a target vehicle;
judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
if yes, judging whether the hand brake of the target vehicle is pulled up or not according to the hand brake state information;
if the hand brake is not pulled up, judging whether the vehicle owner is in the cab or not;
and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
In summary, according to the active safety braking method for a vehicle, when the whole vehicle is in a power-on state, the vehicle speed information of the target vehicle is received, and a preset speed threshold is set to judge that the current speed of the target vehicle is smaller or approaches zero, so that the vehicle is judged to possibly slide down at the moment, further whether the hand brake of the target vehicle is pulled up or not is judged according to the monitored hand brake state information, if the hand brake is not pulled up, whether the vehicle owner is in the cab is further judged, and when the auxiliary braking system recognizes that the vehicle owner is not in the cab, the risk of sliding down or sliding down of the vehicle at the moment is accurately judged, so that the auxiliary braking system sends a parking instruction to a parking mechanism of the target vehicle, and the parking mechanism locks according to the parking instruction, thereby effectively preventing serious safety accidents such as damage or casualties of the vehicle caused by unexpected sliding down of the vehicle.
Further, if the hand brake is not pulled up, the step of judging whether the vehicle owner is in the cab includes:
acquiring a safety belt state signal on a main driver seat;
if the safety belt on the main driver seat is not tied according to the safety belt state signal, acquiring a main driver seat sensor signal of the target vehicle in a first preset time;
calculating a current pressure value of the main driver seat according to the signal of the sensor of the main driver seat, and judging whether the current pressure value of the main driver seat is smaller than a preset pressure value or not;
if yes, continuously detecting the door state of the target vehicle, acquiring whether the door corresponding to the main driver seat is opened or not according to the door state of the target vehicle, and if yes, judging that the vehicle owner has left the driver cab.
Further, the method further comprises:
and if the safety belt on the main driver seat is tied according to the safety belt state signal, or the current pressure value of the main driver seat is larger than the preset pressure value, judging that the vehicle owner is still in the driver cab.
Further, if it is determined that the seat belt on the main driver seat is fastened according to the seat belt status signal, or the current pressure value of the main driver seat is greater than the preset pressure value, the step of determining that the vehicle owner is still in the driver cab further includes:
acquiring a brake pedal state signal of the target vehicle, and acquiring a current brake pedal opening value according to the brake pedal state signal;
judging whether the current brake pedal opening is lower than a preset pedal opening value or not;
if the current opening value of the brake pedal is lower than the preset opening value of the pedal, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, controlling the target vehicle to alarm, and starting a timer at the same time to remind the vehicle owner to pull up a hand brake.
Further, if the current opening of the brake pedal is lower than the preset opening value of the pedal, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, and starting a timer to remind the vehicle owner that the step of pulling up the hand brake further comprises:
repeatedly acquiring current hand brake state information of the target vehicle;
and if the current hand brake state information is still not pulled up within the second preset time, sending an automatic parking instruction to the parking mechanism so that the parking mechanism can be locked according to the automatic parking instruction.
Further, if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle, so that the step of locking the parking mechanism according to the parking instruction further includes:
and calling pre-stored car owner information, and sending the car sliding early warning reminding information to the car owner according to the car owner information.
Further, the step of retrieving pre-stored vehicle owner information and sending the vehicle sliding early warning reminding information to the vehicle owner according to the vehicle owner information further comprises the following steps:
repeatedly detecting the current hand brake state information and the current brake pedal opening value of the target vehicle;
and if the current hand brake state information is pulled up or the current brake pedal opening value is higher than the preset pedal opening value, sending a parking cancellation instruction to the parking mechanism so that the parking mechanism cancels locking of the target vehicle according to the parking cancellation instruction.
According to an embodiment of the invention, an active safety braking system for a vehicle is applied to an auxiliary braking system of the vehicle, and comprises:
the acquisition module is used for: the method comprises the steps that when the whole vehicle is in a power-on state, hand brake state information and vehicle speed information of a target vehicle are obtained;
a first detection module: the speed control device is used for judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
and a second detection module: if yes, judging whether the hand brake of the target vehicle is pulled up according to the hand brake state information;
and a third detection module: if the hand brake is not pulled up, judging whether the vehicle owner is in the cab;
the parking execution module: and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
Another aspect of the present invention also provides a readable storage medium including the readable storage medium storing one or more programs that when executed implement a vehicle active safety braking method as described above.
Another aspect of the invention also provides a vehicle, the computer device comprising a memory and a processor, wherein:
the memory is used for storing a computer program;
the processor is used for implementing the active safety braking method of the vehicle when executing the computer program stored in the memory.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a method for active safety braking of a vehicle according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for active safety braking of a vehicle according to a second embodiment of the present invention;
fig. 3 is a detailed view of step S14 in the second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an active safety brake system for a vehicle according to a third embodiment of the present invention.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a flowchart of a vehicle active safety braking method according to a first embodiment of the present invention is shown, the vehicle active safety braking method includes steps S01 to S05, wherein:
step S01: when the whole vehicle is in a power-on state, acquiring hand brake state information and vehicle speed information of a target vehicle;
it should be noted that, this auxiliary braking system is applied to pure electric vehicle type or mixed motor vehicle type, and when whole car is in the state of being electrified, promptly indicate that whole car is in high pressure and no trouble, can support the normal state of going of whole car, auxiliary braking system listens to obtain the manual brake state information and the speed of a motor vehicle information of target vehicle this moment to the relevant state of real-time supervision vehicle.
Step S02: judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
it can be understood that, since the slip accident is generally caused by insufficient braking force after the target vehicle stops running, if the slip occurs, the target vehicle must have a vehicle speed, based on this, by setting a preset speed threshold, in this embodiment, the preset threshold is set to 3kph, that is, when the monitored vehicle speed of the target vehicle is less than 3kph, if so, the risk that the target vehicle may slip is obtained, and it is required to be noted that the preset speed threshold is mainly related to the environment in which the target vehicle is located and the driving habit of the vehicle owner, and the vehicle owner can set to other values according to the actual requirement.
Step S03: if yes, judging whether the hand brake of the target vehicle is pulled up or not according to the hand brake state information;
it can be understood that the hand brake has the function of providing a resistance to the automobile when the automobile is parked, so that the automobile does not slip, and when the automobile slip risk is judged to exist through the speed information of the target automobile, the auxiliary brake system further actively controls the hand brake system to acquire the hand brake signal so as to acquire the current hand brake state information, and judges whether the hand brake of the target automobile is pulled up according to the hand brake state information so as to analyze whether the self-locking function of the target automobile is started.
Step S04: if the hand brake is not pulled up, judging whether the vehicle owner is in the cab or not;
it should be noted that if the auxiliary braking system monitors that the hand brake of the target vehicle is pulled up, the auxiliary braking system indicates that the locking function of the target vehicle is started, so that the risk of sliding the vehicle does not exist; if the hand brake of the target vehicle is not pulled up, the fact that the locking function of the vehicle is not started is indicated, and at the moment, the auxiliary braking system further judges whether a vehicle owner is in a cab or not so as to analyze whether the target vehicle needs to be actively braked or not.
Step S05: and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
It can be understood that if the vehicle owner is not in the cab, the hand brake is not pulled up, and the target vehicle is still in the power-on state, which means that the vehicle owner temporarily leaves the target vehicle due to emergency, and at the moment, the auxiliary brake system can actively send a parking instruction to the parking mechanism of the target vehicle, so that the parking mechanism locks the target vehicle in time according to the parking instruction.
In summary, according to the active safety braking method for a vehicle, when the whole vehicle is in a power-on state, the vehicle speed information of the target vehicle is received, and a preset speed threshold is set to judge that the current speed of the target vehicle is smaller or approaches zero, so that the vehicle is judged to possibly slide down at the moment, further whether the hand brake of the target vehicle is pulled up or not is judged according to the monitored hand brake state information, if the hand brake is not pulled up, whether the vehicle owner is in the cab is further judged, and when the auxiliary braking system recognizes that the vehicle owner is not in the cab, the risk of sliding down or sliding down of the vehicle at the moment is accurately judged, so that the auxiliary braking system sends a parking instruction to a parking mechanism of the target vehicle, and the parking mechanism locks according to the parking instruction, thereby effectively preventing serious safety accidents such as damage or casualties of the vehicle caused by unexpected sliding down of the vehicle.
Referring to fig. 2, a flow chart of a method for actively braking a vehicle according to a second embodiment of the invention is shown, the method includes steps S11 to S18, wherein:
step S11: when the whole vehicle is in a power-on state, acquiring hand brake state information and vehicle speed information of a target vehicle;
step S12: judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
step S13: if yes, judging whether the hand brake of the target vehicle is pulled up or not according to the hand brake state information;
step S14: if the hand brake is not pulled up, judging whether the vehicle owner is in the cab or not;
further, referring to fig. 3, step S14 specifically includes steps S141 to S144, wherein
Step S141: acquiring a safety belt state signal of a main driver seat;
it will be appreciated that in determining whether the vehicle owner is in the cab, the auxiliary brake system will first receive a safety belt status signal on the primary driver's seat to analyze whether the safety belt on the primary driver's seat is being engaged by the driver.
Step S142: if the safety belt of the main driver seat is not tied according to the safety belt state signal, acquiring a main driver seat sensor signal of the target vehicle within a first preset time;
in this step, when the auxiliary braking system determines that the seat belt on the main driver seat is not tied according to the safety belt status signal, it is primarily determined that the vehicle owner may not be on the main driver seat, and it is also possible that the vehicle owner releases the seat belt when temporarily stopping, so, in order to further accurately analyze whether the vehicle owner is on the main driver seat, the auxiliary driving system monitors the main driver seat sensor signal of the target vehicle in a first preset time.
The main driver seat sensor is mainly used for sensing whether the main driver seat receives external pressure or not, and whether the vehicle owner is not on the main driver seat or not can be judged in real time by acquiring signals of the main driver seat sensor.
Step S143: calculating a current pressure value of the main driver seat according to the signal of the sensor of the main driver seat, and judging whether the current pressure value of the main driver seat is smaller than a preset pressure value or not;
by way of example and not limitation, the primary operator seat sensor signal received by the auxiliary brake system is a current signal and the current signal is converted to a pressure value in percent, e.g., if the current signal obtained by the auxiliary brake system is 6 milliamps, the calculated pressure value is 1.
Further, in this embodiment, the preset pressure value is specifically set to 30, that is, the auxiliary brake system determines whether the driver has left the main driver seat by comparing whether the current pressure value of the main driver seat is less than 30, and it can be understood that, in other embodiments of the present invention, since the current pressure value of the main driver seat is related to the use environment of the target vehicle, the vehicle owner can set according to the actual situation.
Step S144: if yes, continuously detecting the door state of the target vehicle, and acquiring whether a door corresponding to a main driver seat is opened or not according to the door state of the target vehicle, if yes, judging that the vehicle owner has left the driver cab;
it will be appreciated that when it is detected that the seat belt on the main driver's seat is not fastened and the current pressure value on the main driver's seat is less than the preset pressure value, the driver may also temporarily raise the seat to adjust the seat, so that in order to accurately determine whether the driver has left the cab, the auxiliary brake system needs to continuously detect the door state of the target vehicle to determine whether the door of the main driver's seat is opened.
It should be noted that the front-rear intervals of the safety belt state signal, the main driver seat pressure sensor signal and the vehicle door state monitored by the auxiliary braking system are all in the millisecond level, so that the situation that the analyzed result is lagged due to the fact that the monitoring signal is obtained slowly is effectively avoided.
It can be understood that when the auxiliary braking system detects that the corresponding door state of the cab is open, the auxiliary braking system sends a parking instruction to the parking mechanism of the target vehicle to lock the target vehicle because the safety belt on the main cab has been detected to be released before and the driver is judged not to be on the seat according to the signal of the pressure sensor of the main cab, so that the driver is judged to have left the cab.
Step S15: acquiring a brake pedal state signal of the target vehicle, and acquiring a current brake pedal opening value according to the brake pedal state signal;
it should be noted that, if it is determined that the seat belt on the main driver seat is tied according to the seat belt state signal, or the current pressure value of the main driver seat is greater than the preset pressure value, it is determined that the vehicle owner is still in the driver seat, and it is not necessary to further detect the door state of the target vehicle at this time, but because the hand brake state of the target vehicle is still not pulled, there is a risk of sliding, based on this, the auxiliary brake system further obtains the brake pedal state signal of the target vehicle, so as to determine whether the vehicle owner in the driver seat has stepped on the brake pedal.
Step S16: judging whether the current brake pedal opening is lower than a preset pedal opening value or not;
it will be appreciated that the brake pedal status signal obtained by the auxiliary brake system is a current signal, and the manufacturer sets the conversion of the current signal into a pedal opening value before detecting the brake pedal status, for example, when the current signal value obtained with respect to the brake pedal status signal is 20mA, the corresponding brake pedal opening value is 10%.
Further, in this embodiment, the preset pedal opening value is 20%, that is, when the auxiliary braking system detects that the current brake pedal opening of the target vehicle is less than 20%, it indicates that the vehicle owner does not brake the target vehicle, or the vehicle owner lightly steps on the brake pedal but the braking force is insufficient.
It should be noted that, in the daily driving process, the vehicle owner also often uses the brake pedal, in order to avoid the situation that the vehicle owner generates false braking in the normal driving process, the preset pedal opening value set cannot be too large, and because the driving habits of the vehicle owners are different, the vehicle owner can also set according to the actual situation of the vehicle owner.
Step S17: if the current opening value of the brake pedal is lower than the preset opening value of the pedal, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, controlling the target vehicle to alarm, and starting a timer at the same time to remind the vehicle owner to pull up a hand brake.
It can be understood that when the current brake pedal is detected to be lower than the preset pedal opening value, the auxiliary brake system judges that the braking force of the target vehicle is insufficient at the moment, and the auxiliary brake system sends the vehicle sliding early warning information to the target vehicle.
Step S18: and sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
It can be understood that after the vehicle owner carries out the early warning prompt of sliding, the auxiliary braking system can also repeatedly acquire the current hand brake state information of the target vehicle, and when the current hand brake state information is still not pulled up in the second preset time, an automatic parking instruction is sent to the parking mechanism, so that the parking mechanism locks according to the automatic parking instruction.
It should be noted that, when detecting that the vehicle owner has left the cab, the auxiliary braking system will also send a parking instruction to the parking mechanism to make the target vehicle realize locking, and at the same time, the pre-stored vehicle owner information will be called, in this embodiment, the vehicle owner information is mainly the phone number of the vehicle owner, and according to the vehicle owner information, the vehicle sliding early warning reminding information is sent to the mobile terminal of the vehicle owner, so as to remind the vehicle owner to forget that the target vehicle has not flameout and has not been braked.
Further, after the auxiliary braking system sends the car sliding early warning reminding information to the mobile terminal of the car owner, the current hand brake state information and the current brake pedal opening value of the target car are still detected repeatedly, if the current hand brake state information is pulled up or the current brake pedal opening value is higher than the preset pedal opening value, the fact that the car owner returns to the cab at the moment is indicated that the auxiliary braking system sends a parking cancellation instruction to the parking mechanism, and the parking mechanism cancels locking of the target car according to the parking cancellation instruction.
In summary, according to the active safety braking method for a vehicle, when the whole vehicle is in a power-on state, the vehicle speed information of the target vehicle is received, and a preset speed threshold is set to judge that the current speed of the target vehicle is smaller or approaches zero, so that the vehicle is judged to possibly slide down at the moment, further whether the hand brake of the target vehicle is pulled up or not is judged according to the monitored hand brake state information, if the hand brake is not pulled up, whether the vehicle owner is in the cab is further judged, and when the auxiliary braking system recognizes that the vehicle owner is not in the cab, the risk of sliding down or sliding down of the vehicle at the moment is accurately judged, so that the auxiliary braking system sends a parking instruction to a parking mechanism of the target vehicle, and the parking mechanism locks according to the parking instruction, thereby effectively preventing serious safety accidents such as damage or casualties of the vehicle caused by unexpected sliding down of the vehicle. In addition, when the driver is in the vehicle, if the safety actions such as braking or handle braking are not performed on the vehicle, the auxiliary braking system can be effectively locked according to the state of the target vehicle, so that the safety performance of the vehicle is further ensured.
Referring to fig. 4, there is shown an active safety brake system for a vehicle, applied to an auxiliary brake system for a vehicle, according to a third embodiment of the present invention, the system comprising:
the acquisition module 10: the method comprises the steps that when the whole vehicle is in a power-on state, hand brake state information and vehicle speed information of a target vehicle are obtained;
the first detection module 20: the speed control device is used for judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
the second detection module 30: if yes, judging whether the hand brake of the target vehicle is pulled up according to the hand brake state information;
the third detection module 40: if the hand brake is not pulled up, judging whether the vehicle owner is in the cab;
further, the third detection module 40 further includes:
a seat belt detection unit: the safety belt state signal acquisition module is used for acquiring a safety belt state signal of the main driver seat;
main driver seat sensor detection unit: if the safety belt of the main driver seat is not tied according to the safety belt state signal, acquiring a main driver seat sensor signal of the target vehicle within a first preset time;
a pressure value calculation unit: the method comprises the steps of calculating a current pressure value of a main driver seat according to a signal of a sensor of the main driver seat, and judging whether the current pressure value of the main driver seat is smaller than a preset pressure value or not;
door detection unit: and if yes, the vehicle owner is judged to have left the cab.
Brake pedal signal acquisition module 50: the method comprises the steps of acquiring a brake pedal state signal of the target vehicle, and acquiring a current brake pedal opening value according to the brake pedal state signal;
brake pedal opening analysis module 60: the method comprises the steps of judging whether the current brake pedal opening is lower than a preset pedal opening value or not;
the car sliding early warning execution module 70: if the current brake pedal opening value is lower than the preset pedal opening value, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, controlling the target vehicle to alarm, and starting a timer at the same time to remind the vehicle owner of pulling up a hand brake;
parking execution module 80: and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
In summary, according to the active safety braking system for a vehicle, when the whole vehicle is in a power-on state, the vehicle speed information of the target vehicle is received, and a preset speed threshold is set to judge that the current speed of the target vehicle is smaller or approaches zero, so that the vehicle is judged to possibly slide down at the moment, further whether the hand brake of the target vehicle is pulled up or not is judged according to the monitored hand brake state information, if the hand brake is not pulled up, whether the vehicle owner is in the cab is further judged, and when the auxiliary braking system recognizes that the vehicle owner is not in the cab, the risk of sliding down or sliding down of the vehicle at the moment is accurately judged, so that the auxiliary braking system sends a parking instruction to a parking mechanism of the target vehicle, and the parking mechanism locks according to the parking instruction, thereby effectively preventing serious safety accidents such as damage or casualties of the vehicle caused by unexpected sliding down of the vehicle.
In another aspect, the present invention also provides a computer readable storage medium having one or more programs stored thereon, which when executed by a processor, implement the vehicle active safety braking method described above.
In another aspect, the present invention further provides a vehicle, including a memory and a processor, where the memory is configured to store a computer program, and the processor is configured to execute the computer program stored in the memory, so as to implement the active safety braking method of the vehicle.
Those of skill in the art will appreciate that the logic and/or steps represented in the flow diagrams or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain or store the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A method of active safety braking of a vehicle, applied to an auxiliary braking system of the vehicle, the method comprising:
when the whole vehicle is in a power-on state, acquiring hand brake state information and vehicle speed information of a target vehicle;
judging whether the speed of the target vehicle is lower than a preset speed threshold value according to the speed information;
if yes, judging whether the hand brake of the target vehicle is pulled up or not according to the hand brake state information;
if the hand brake is not pulled up, judging whether the vehicle owner is in the cab or not;
if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction;
if the safety belt on the main driver seat is tied according to the safety belt state signal, or the current pressure value of the main driver seat is larger than the preset pressure value, the step of judging that the vehicle owner is still in the driver cab further comprises the following steps:
acquiring a brake pedal state signal of the target vehicle, and acquiring a current brake pedal opening value according to the brake pedal state signal;
judging whether the current brake pedal opening is lower than a preset pedal opening value or not;
if the current brake pedal opening value is lower than the preset pedal opening value, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, controlling the target vehicle to alarm, and starting a timer at the same time to remind the vehicle owner to pull up a hand brake;
if the current brake pedal opening is lower than the preset pedal opening value, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, and starting a timer to remind the vehicle owner that the step of pulling up the hand brake further comprises:
repeatedly acquiring current hand brake state information of the target vehicle;
and if the current hand brake state information is still not pulled up within the second preset time, sending an automatic parking instruction to the parking mechanism so that the parking mechanism can be locked according to the automatic parking instruction.
2. The method of active safety braking of a vehicle according to claim 1, wherein the step of determining whether the vehicle owner is in the cab if the handbrake is not pulled up comprises:
acquiring a safety belt state signal on a main driver seat;
if the safety belt on the main driver seat is not tied according to the safety belt state signal, acquiring a main driver seat sensor signal of the target vehicle in a first preset time;
calculating a current pressure value of the main driver seat according to the signal of the sensor of the main driver seat, and judging whether the current pressure value of the main driver seat is smaller than a preset pressure value or not;
if yes, continuously detecting the door state of the target vehicle, acquiring whether the door corresponding to the main driver seat is opened or not according to the door state of the target vehicle, and if yes, judging that the vehicle owner has left the driver cab.
3. The vehicle active safety braking method according to claim 2, characterized in that the method further comprises:
and if the safety belt on the main driver seat is tied according to the safety belt state signal, or the current pressure value of the main driver seat is larger than the preset pressure value, judging that the vehicle owner is still in the driver cab.
4. The method according to claim 1, wherein the step of sending a parking instruction to a parking mechanism of the target vehicle if the vehicle owner is not in the cab so that the parking mechanism is locked according to the parking instruction further comprises:
and calling pre-stored car owner information, and sending the car sliding early warning prompt information to the car owner according to the car owner information.
5. The method according to claim 4, wherein the step of retrieving pre-stored owner information and sending the slip warning prompt information to the owner according to the owner information further comprises:
repeatedly detecting the current hand brake state information and the current brake pedal opening value of the target vehicle;
and if the current hand brake state information is pulled up or the current brake pedal opening value is higher than the preset pedal opening value, sending a parking cancellation instruction to the parking mechanism so that the parking mechanism cancels locking of the target vehicle according to the parking cancellation instruction.
6. A vehicle active safety brake system, characterized by an auxiliary brake system applied to a vehicle, the vehicle active safety brake system comprising:
the acquisition module is used for: the method comprises the steps that when the whole vehicle is in a power-on state, hand brake state information and vehicle speed information of a target vehicle are obtained;
a first detection module: the vehicle speed judging device is used for judging whether the vehicle speed of the target vehicle is lower than a preset speed threshold value according to the vehicle speed information;
and a second detection module: if yes, judging whether the hand brake of the target vehicle is pulled up according to the hand brake state information;
and a third detection module: if the hand brake is not pulled up, judging whether the vehicle owner is in the cab;
the parking execution module: if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction;
the brake pedal signal acquisition module: the method comprises the steps of acquiring a brake pedal state signal of the target vehicle, and acquiring a current brake pedal opening value according to the brake pedal state signal;
brake pedal opening analysis module: the method comprises the steps of judging whether the current brake pedal opening is lower than a preset pedal opening value or not;
the car sliding early warning execution module: if the current brake pedal opening value is lower than the preset pedal opening value, sending a vehicle sliding early warning prompt message to an instrument panel of the target vehicle, controlling the target vehicle to alarm, and starting a timer at the same time to remind the vehicle owner of pulling up a hand brake;
the parking execution module: and if the vehicle owner is not in the cab, sending a parking instruction to a parking mechanism of the target vehicle so that the parking mechanism is locked according to the parking instruction.
7. A readable storage medium, comprising: the readable storage medium stores one or more programs which when executed by a processor implement the vehicle active safety braking method of any of claims 1-5.
8. A vehicle, the vehicle comprising a memory and a processor, wherein:
the memory is used for storing a computer program;
the processor is configured to implement the vehicle active safety braking method according to any one of claims 1 to 5 when executing the computer program stored on the memory.
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| CN113879329A (en) | 2022-01-04 |
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