CN112549869A - Vehicle tire burst early warning device and system - Google Patents
Vehicle tire burst early warning device and system Download PDFInfo
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- CN112549869A CN112549869A CN202011206896.0A CN202011206896A CN112549869A CN 112549869 A CN112549869 A CN 112549869A CN 202011206896 A CN202011206896 A CN 202011206896A CN 112549869 A CN112549869 A CN 112549869A
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- 238000001514 detection method Methods 0.000 claims abstract description 63
- 230000002159 abnormal effect Effects 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000011897 real-time detection Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000001413 cellular effect Effects 0.000 claims description 5
- 230000010267 cellular communication Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 206010039203 Road traffic accident Diseases 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0401—Signalling devices actuated by tyre pressure mounted on the wheel or tyre characterised by the type of alarm
- B60C23/0406—Alarms noticeable from outside the vehicle, e.g. indication in side mirror, front light or audible alarms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/20—Devices for measuring or signalling tyre temperature only
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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
- B60Q1/46—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 giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
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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
- 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
-
- 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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
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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
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
- B60W60/001—Planning or execution of driving tasks
Abstract
The invention provides a vehicle tire burst early warning device and a vehicle tire burst early warning system, which comprise an initial detection unit, a tire pressure detection unit and a tire pressure detection unit, wherein the initial detection unit is used for predicting a temperature difference along the way and a corresponding predicted tire pressure value according to a Keraberon equation; the running state detection unit is used for detecting tire abnormity according to the speed limit requirement of the current position of the vehicle and the real-time detection speed, starting a deviation processing program when the detection result is abnormal, and entering circular detection if the detection result is abnormal; and after the deviation processing program is started, safety early warning is carried out, a nearby auxiliary road parking strategy is planned according to the current scene of the vehicle, and after parking, accident processing is waited. Therefore, the tire pressure monitoring system and the auxiliary/automatic driving system are effectively integrated, the real-time condition of the tire is intelligently detected, the auxiliary function is automatically responded when abnormity occurs, the driving safety of drivers and surrounding vehicles is guaranteed, and traffic accidents are reduced.
Description
Technical Field
The invention relates to the field of automobile fault diagnosis, in particular to a vehicle tire burst early warning device and system.
Background
The tire burst of a vehicle is one of important risk factors endangering driving safety, a tire pressure detection and early warning device is usually adopted for tire pressure monitoring and early warning at present, if the tire pressure and the temperature deviate from preset values, a driver subjectively judges and takes measures by himself, and once the driver judges the faults or takes the measures improperly, the traffic accidents are dangerous. The conventional tire pressure monitoring system is an isolated system and is not combined with an auxiliary driving system or an automatic driving system, so that when the tire pressure and the temperature deviate from preset values, only a reminding function is played, a driver subjectively and automatically judges and takes measures, and a vehicle cannot automatically take corresponding measures to avoid risks. Particularly, when the vehicle is driven for a long distance, the vehicle is driven from one region to another region due to long-time and distance driving, the condition that the tire pressure and the tire temperature deviate from the upper limit or the lower limit can be caused by the change of the external environment temperature difference and the friction temperature caused by long-time driving, a driver cannot predict the tire burst risk in advance, and hurry easily occurs in the face of an emergency, so that more serious traffic accidents are caused.
Disclosure of Invention
The invention provides a vehicle tire burst early warning device and a vehicle tire burst early warning system, which are characterized in that a tire pressure monitoring system and an auxiliary/automatic driving system are fused to detect and predict the change conditions of tire pressure and temperature in real time, and a deviation processing program is automatically started when the tire is abnormal, so that the safety of drivers or passengers and vehicles around the vehicle is ensured, and the occurrence of accidents is reduced.
Specifically, the vehicle tire burst early warning device comprises
The tire detection module is arranged at the tire end and is used for monitoring the tire pressure and the tire temperature in real time;
a computational unit planning system coupled to the tire testing module, the computational unit planning system comprising:
the initial detection unit is used for predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation;
the running state detection unit is used for detecting tire abnormity according to the speed limit requirement of the current position of the vehicle and the real-time detection speed, starting a deviation processing program when the detection result is abnormal, and otherwise, entering the cycle detection;
and after the deviation processing program is started, safety early warning is carried out, a nearby auxiliary road parking strategy is planned according to the current scene of the vehicle, and after parking, accident processing is waited.
Further, the system for planning a computing unit further comprises:
the environment temperature detection unit is respectively connected with the initial detection unit and the running state detection unit and is used for detecting the environment temperature when the vehicle is started;
and a GNSS (Global navigation Satellite System) Satellite navigation system, planning a destination route by combining a High precision map (High precision map) unit, and positioning the position of the automobile in real time;
and a cellular Communication unit (cellular Communication Box) for acquiring weather conditions, road ground temperature and forecast information along the route of the initial position and the destination;
furthermore, the calculation unit planning system also comprises a speed sensor connected with the driving state detection unit, the speed sensor is used for acquiring the driving speed of the automobile in real time, acquiring the road position of the automobile according to the GNSS satellite navigation unit and the high-precision map unit, acquiring the speed limit requirement of the current road section and adjusting the speed of the automobile.
Further, the system for planning a computing unit further comprises: the radar unit and the camera are connected with the deviation processing program and are used for detecting the current external environment of the automobile; and an inertia measurement unit for controlling the vehicle to stop nearby the side road when the deviation processing program is started; and a cellular internet of vehicles unit for sending alerts to surrounding vehicles.
Preferably, the present invention further provides a system for the vehicle tire burst warning device, comprising the following steps:
s1: starting the vehicle;
s2: detecting the initial state of the vehicle, and predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation; after the initial state correction is completed, the driving is started, and the process goes to S3;
s3: entering a running state detection unit, carrying out tire abnormity detection according to the speed limit requirement and the real-time detection speed, turning to S4 when the detection result is abnormal, otherwise, entering cycle detection;
s4: and starting a deviation processing program, entering safety early warning, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing accident processing after parking.
Wherein the S2 further includes:
s21: performing environment temperature detection, setting a navigation planning route according to a user destination, and acquiring the on-road weather condition, road ground temperature and forecast information of the planning route;
s22: detecting the initial tire pressure and tire temperature of the vehicle, and calculating a predicted tire pressure value according to the ground temperature of the road along the way;
s23: judging whether the tire pressure value on the way is larger than a low-pressure preset value, if so, judging whether the tire pressure value on the way is smaller than a high-pressure preset value, and if so, turning to S3; otherwise, prompting the driver to deflate the tire; otherwise, the driver is prompted to inflate the tire.
Further, the S22 further includes: predicting the tire pressure value of the destination route by adopting a Kerberon equation: P1/T1= P2/T2, where P1 and T1 are an initial tire pressure value and an initial temperature, and P2 and T2 are a tire pressure value and a ground temperature corresponding to any one point on the destination route.
Further, the S3 further includes:
s31: acquiring the position of a vehicle and the speed limit requirement of the current road section, and detecting the speed of the vehicle;
s32: judging whether the speed is greater than 60km/h, if so, executing tire pressure and temperature detection of the tire, wherein the detection frequency is 2 seconds and 1 time, and the emission frequency is 1 time every 1 minute; otherwise, the detection frequency is 6 seconds and 1 time, and the emission frequency is 1 time every 2 minutes;
s33: judging whether the tire pressure value is larger than a low-pressure preset value or not, if so, judging whether the tire has quick air leakage or not, if not, continuously judging whether the tire pressure value is smaller than a high-pressure preset value or not, if so, judging whether the tire temperature is lower than a high-temperature preset value or not, and if so, normally driving; otherwise, the deviation processing routine is started, and the routine goes to S4.
Further, the S4 further includes:
s41: starting safety early warning, and displaying abnormal information on a central control display end for prompting a driver;
s42: automatically starting a double-flash function;
s43: starting the cellular Internet of vehicles unit, sending abnormal information to adjacent vehicles within a preset range, and warning the adjacent vehicles to avoid;
s44: the method comprises the steps of collecting the current surrounding environment of a vehicle through a radar unit, a camera, a GNSS satellite navigation unit and a high-precision map unit, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing the accident treatment waiting after parking.
The auxiliary road parking strategy at least comprises a parking position and route planning of driving a vehicle from the current position to the parking position, wherein the parking position at least comprises a peripheral auxiliary road position, a temporary parking station, a toll station entrance and exit, or an automobile service station.
In summary, the present invention provides a vehicle tire burst warning device and system, including an initial detection unit for predicting a temperature difference along the way and a corresponding predicted tire pressure value according to the krabberon equation; the running state detection unit is used for detecting tire abnormity according to the speed limit requirement of the current position of the vehicle and the real-time detection speed, starting a deviation processing program when the detection result is abnormal, and entering circular detection if the detection result is abnormal; and after the deviation processing program is started, safety early warning is carried out, a nearby auxiliary road parking strategy is planned according to the current scene of the vehicle, and after parking, accident processing is waited. Therefore, the tire pressure monitoring system and the auxiliary/automatic driving system are effectively integrated, the real-time condition of the tire is intelligently detected, the auxiliary function is automatically responded when abnormity occurs, the driving safety of drivers and surrounding vehicles is guaranteed, and traffic accidents are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle tire burst warning device in an embodiment.
Fig. 2 is a system diagram of the vehicle tire burst warning device shown in fig. 1.
FIG. 3 is a flow chart of initial detection in one embodiment.
Fig. 4 is a flowchart of detecting normal running of a vehicle according to an embodiment.
FIG. 5 is a flow chart of a vehicle tire pressure and temperature deviation process in one embodiment.
Detailed Description
A vehicle tire burst warning device and system according to the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
Fig. 1 is a schematic structural diagram of a vehicle tire burst warning device provided by the invention, specifically: the vehicle tire burst early warning device comprises a calculation unit planning system, a control unit system and a tire burst early warning device,
the tire detection module is connected with the calculation unit planning system, is arranged at a tire end, and is used for monitoring the tire pressure and the tire temperature in real time and transmitting the acquired data to the calculation unit planning system;
further, the calculation unit planning system includes:
the initial detection unit is used for predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation;
the running state detection unit is used for detecting tire abnormity according to the speed limit requirement of the current position of the vehicle and the real-time detection speed, starting a deviation processing program when the detection result is abnormal, and otherwise, entering the cycle detection;
and a deviation processing program, entering safety early warning after the deviation processing program is started, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing accident processing after parking.
Preferably, the calculation unit planning system is further connected with:
the GNSS satellite navigation unit is used for positioning the current position and the target position of the vehicle in real time;
and the high-precision map unit is used for providing position information and a navigation route for driving by combining the GNSS satellite navigation unit in real time, and acquiring speed limit information of a road section according to the position of the vehicle, but is not limited to the above.
The cellular communication unit is used for acquiring the weather actual condition, road ground temperature and forecast information along the initial position and the destination route; optionally, the weather live comprises a real-time climate temperature; the road ground temperature can be selected from road implementation ground temperature acquired by acquiring large data of automobiles passing through the road section; the forecast information includes at least climate temperature information and ground predicted temperature per hour for the next 2 days, but is not limited thereto.
The V2X car networking communication unit is used for realizing communication with the car in the peripheral preset distance range, and when the car is abnormal, the abnormal information of the car is synchronously sent to the surrounding cars to warn other cars to pay attention to safety, or avoid driving, or give way.
The TPMS tire pressure detection system is used for collecting the pressure values of 4 tires of a vehicle in real time.
The Camera shooting unit records the surrounding environment information of the vehicle;
and the radar unit and the external environment information collected by the Camera Camera unit plan a nearby side road parking strategy for the vehicle according to the current situation of the vehicle, wherein the radar unit at least comprises an ultrasonic radar, a millimeter wave radar and a laser radar, but is not limited to the ultrasonic radar, the millimeter wave radar and the laser radar.
The speed sensor is used for acquiring the driving speed of the automobile in real time, acquiring the road position of the automobile according to the GNSS satellite navigation unit and the high-precision map unit, acquiring the speed limit requirement of the current road section and adjusting the speed of the automobile.
And the inertia measurement unit is used for controlling the vehicle to stop nearby the auxiliary road when the deviation processing program is started.
Further, the control unit system further includes sound control, light control, steering control, and braking control, but is not limited thereto;
the sound control is used for broadcasting the current driving condition of the automobile, the ambient environment condition, the tire temperature and the tire pressure information of the tire, but is not limited to the situation; the vehicle-mounted sound box can also be integrated with the vehicle-mounted sound box or embedded in the vehicle-mounted sound box, and is also used for playing music during normal driving.
The light control at least comprises the steps of automatically starting double flashing when abnormality occurs, and timely informing surrounding automobiles or pedestrians of avoiding.
And the steering control and the braking control are used for performing steering operation and controlling the automobile to stop nearby according to the nearby auxiliary road stopping strategy, and are particularly applied to assisting the automobile to perform self control under abnormal conditions when the automobile is automatically driven or unmanned, so that traffic accidents caused by human errors are avoided.
As another preferred aspect, the present invention further provides a system (as shown in fig. 2) applied to the vehicle tire burst warning device, including the following steps:
s1: starting the vehicle;
s2: detecting the initial state of the vehicle, and predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation; after the initial state correction is completed, the driving is started, and the process goes to S3;
s3: entering a running state detection unit, carrying out tire abnormity detection according to the speed limit requirement and the real-time detection speed, turning to S4 when the detection result is abnormal, otherwise, entering cycle detection;
s4: and starting a deviation processing program, entering safety early warning, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing accident processing after parking.
Further, the S2 (shown in fig. 3) further includes:
s21: starting a vehicle, executing environment temperature detection, setting a navigation planning route according to a user destination, and acquiring the on-road weather condition, road ground temperature and forecast information of the planning route;
s22: detecting the initial tire pressure and tire temperature of the vehicle, and calculating a predicted tire pressure value according to the ground temperature of the road along the way;
s23: judging whether the tire pressure value on the way is larger than a low-pressure preset value, if so, judging whether the tire pressure value on the way is smaller than a high-pressure preset value, and if so, turning to S3; otherwise, prompting the driver to deflate the tire; otherwise, the driver is prompted to inflate the tire.
Wherein the S22 further includes: predicting the tire pressure value of the destination route by adopting a Kerberon equation: P1/T1= P2/T2, where P1 and T1 are an initial tire pressure value and an initial temperature, and P2 and T2 are a tire pressure value and a ground temperature corresponding to any one point on the destination route. According to the krabberon equation, in a fixed volume environment, the relationship of air pressure to temperature is expressed as: PV = nRT, where P: pressure (in Pa), V: volume (in cubic meters), n: amount of substance (in mol), R: gas constants (in units of J/(mol × K)), T: temperature (in K). According to the Clarbelon equation, PV/T = constant, the volume (volume) of the tire is basically unchanged when the tire pressure is changed within a certain range, namely P1/T1= P2/T2, the temperature is increased, and the tire pressure is increased; the temperature is reduced and the tire pressure is reduced. P1 and T1 are the initial pressure and initial temperature, with the pressure and ground temperature corresponding differently to P2 and T2, P3 and T3, a. When the automobile moves, the tire is a main and complex friction part, the running automobile, particularly the automobile running at high speed in a high-temperature environment, continuously rubs the tire and the road surface to cause the temperature of the tire to rise, the vehicle auxiliary/automatic driving system calculates a temperature compensation coefficient M according to the planned running speed, the surface temperature forecast of a planned route, the environment temperature and the like, and compares the tire pressure and the tire temperature in an initial state with a preset standard tire pressure A, namely if the predicted tire pressure along the road is less than or equal to a low-pressure preset value, a driver or a passenger is reminded to properly inflate the tire; when the tire pressure value A is reached, the inflation is stopped through sound prompt; if the predicted tire pressure along the way is larger than or equal to the high-pressure preset value, reminding a driver or a passenger of properly deflating the tire; when the tire pressure value A is reached, the air release is stopped through the sound prompt. And starting driving until the initial tire pressure is corrected.
Further, the S3 (shown in fig. 4) further includes:
s31: acquiring the position of a vehicle and the speed limit requirement of the current road section, and detecting the speed of the vehicle;
s32: judging whether the speed is greater than 60km/h, if so, executing tire pressure and temperature detection of the tire, wherein the detection frequency is 2 seconds and 1 time, and the emission frequency is 1 time every 1 minute; otherwise, the detection frequency is 6 seconds and 1 time, and the emission frequency is 1 time every 2 minutes;
s33: judging whether the tire pressure value is larger than a low-pressure preset value or not, if so, judging whether the tire has quick air leakage or not, if not, continuously judging whether the tire pressure value is smaller than a high-pressure preset value or not, if so, judging whether the tire temperature is lower than a high-temperature preset value or not, and if so, normally driving; otherwise, the deviation processing routine is started, and the routine goes to S4.
Further, the S4 (shown in fig. 5) starts the tire warm tire pressure deviation processing procedure, which further includes:
s41: starting safety early warning, and displaying abnormal information on a central control display end for prompting a driver;
s42: automatically starting a double-flash function;
s43: starting a novel cellular Internet of vehicles (V2X) unit, and sending abnormal information to adjacent vehicles within a preset range for warning the adjacent vehicles to avoid;
s44: starting an Advanced Driver Assistance System (ADAS), acquiring the surrounding environment of the current vehicle through a radar unit, a camera, a GNSS satellite navigation unit and a high-precision map unit, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing the handling of waiting accidents after parking.
The auxiliary road parking strategy at least comprises a parking position and a route plan for driving a vehicle from a current position to the parking position, wherein the parking position at least comprises a peripheral auxiliary road position, or a temporary parking station, or a toll gate, or an automobile service station.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A vehicle tire burst early warning device is characterized by comprising
The tire detection module is arranged at the tire end and is used for monitoring the tire pressure and the tire temperature in real time;
a computational unit planning system coupled to the tire testing module, the computational unit planning system comprising:
the initial detection unit is used for predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation;
the running state detection unit is used for detecting tire abnormity according to the speed limit requirement of the current position of the vehicle and the real-time detection speed, starting a deviation processing program when the detection result is abnormal, and otherwise, entering the cycle detection;
and after the deviation processing program is started, safety early warning is carried out, a nearby auxiliary road parking strategy is planned according to the current scene of the vehicle, and after parking, accident processing is waited.
2. The vehicle tire burst warning device according to claim 1, wherein the computing unit planning system further comprises:
the environment temperature detection unit is respectively connected with the initial detection unit and the running state detection unit and is used for detecting the environment temperature when the vehicle is started;
the GNSS satellite navigation system plans a destination route through the combined high-precision map unit and positions the automobile in real time;
and a telematics cellular communication unit for acquiring weather conditions, road ground temperature and forecast information along the route between the initial position and the destination.
3. The vehicle tire burst early warning device according to claim 2, further comprising a speed sensor connected with the driving state detection unit, wherein the speed sensor is used for acquiring the driving speed of the vehicle in real time, acquiring the road position of the vehicle according to the GNSS satellite navigation unit and the high-precision map unit, acquiring the speed limit requirement of the current road section and adjusting the vehicle speed.
4. The vehicle tire burst warning device according to claim 1, wherein the computing unit planning system further comprises: the radar unit and the camera are connected with the deviation processing program and are used for detecting the current external environment of the automobile; and an inertia measurement unit for controlling the vehicle to stop nearby the side road when the deviation processing program is started; and a cellular internet of vehicles unit for sending alerts to surrounding vehicles.
5. The system of a vehicle tire burst warning device according to any one of claims 1 to 4, comprising the steps of:
s1: starting the vehicle;
s2: detecting the initial state of the vehicle, and predicting the temperature difference along the way and the corresponding predicted tire pressure value by adopting a Kerbelon equation; after the initial state correction is completed, the driving is started, and the process goes to S3;
s3: entering a running state detection unit, carrying out tire abnormity detection according to the speed limit requirement and the real-time detection speed, turning to S4 when the detection result is abnormal, otherwise, entering cycle detection;
s4: and starting a deviation processing program, entering safety early warning, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing accident processing after parking.
6. The system according to claim 5, wherein the S2 further comprises:
s21: performing environment temperature detection, setting a navigation planning route according to a user destination, and acquiring the on-road weather condition, road ground temperature and forecast information of the planning route;
s22: detecting the initial tire pressure and tire temperature of the vehicle, and calculating a predicted tire pressure value according to the ground temperature of the road along the way;
s23: judging whether the tire pressure value on the way is larger than a low-pressure preset value, if so, judging whether the tire pressure value on the way is smaller than a high-pressure preset value, and if so, turning to S3; otherwise, prompting the driver to deflate the tire; otherwise, the driver is prompted to inflate the tire.
7. The system according to claim 5, wherein the S22 further comprises: predicting the tire pressure value of the destination route by adopting a Kerberon equation: P1/T1= P2/T2, where P1 and T1 are an initial tire pressure value and an initial temperature, and P2 and T2 are a tire pressure value and a ground temperature corresponding to any one point on the destination route.
8. The system according to claim 5, wherein the S3 further comprises:
s31: acquiring the position of a vehicle and the speed limit requirement of the current road section, and detecting the speed of the vehicle;
s32: judging whether the speed is greater than 60km/h, if so, executing tire pressure and temperature detection of the tire, wherein the detection frequency is 2 seconds and 1 time, and the emission frequency is 1 time every 1 minute; otherwise, the detection frequency is 6 seconds and 1 time, and the emission frequency is 1 time every 2 minutes;
s33: judging whether the tire pressure value is larger than a low-pressure preset value or not, if so, judging whether the tire has quick air leakage or not, if not, continuously judging whether the tire pressure value is smaller than a high-pressure preset value or not, if so, judging whether the tire temperature is lower than a high-temperature preset value or not, and if so, normally driving; otherwise, the deviation processing routine is started, and the routine goes to S4.
9. The system according to claim 5, wherein the S4 further comprises:
s41: starting safety early warning, and displaying abnormal information on a central control display end for prompting a driver;
s42: automatically starting a double-flash function;
s43: starting the cellular Internet of vehicles unit, sending abnormal information to adjacent vehicles within a preset range, and warning the adjacent vehicles to avoid;
s44: the method comprises the steps of collecting the current surrounding environment of a vehicle through a radar unit, a camera, a GNSS satellite navigation unit and a high-precision map unit, planning a nearby auxiliary road parking strategy according to the current scene of the vehicle, and executing the accident treatment waiting after parking.
10. The system of claim 9, wherein the secondary stopping strategy comprises at least stopping locations and routing of vehicles from a current location to the stopping locations, wherein the stopping locations comprise at least surrounding secondary positions, or temporary stopping sites, or toll gate, or car service stations.
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