CN105856980A - Passenger-car rollover early-warning method based on tire pressure monitoring - Google Patents
Passenger-car rollover early-warning method based on tire pressure monitoring Download PDFInfo
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- CN105856980A CN105856980A CN201610398549.XA CN201610398549A CN105856980A CN 105856980 A CN105856980 A CN 105856980A CN 201610398549 A CN201610398549 A CN 201610398549A CN 105856980 A CN105856980 A CN 105856980A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 12
- 230000008450 motivation Effects 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 6
- 230000008447 perception Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
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
-
- 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
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W30/02—Control of vehicle driving stability
- B60W30/04—Control of vehicle driving stability related to roll-over prevention
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a passenger-car rollover early-warning method based on tire pressure monitoring. The passenger-car rollover early-warning method includes the steps that the pressure P1 and the pressure P2 of tires on the two sides of a front axle of a car are collected in real time; the maximum absolute value deltaP<max> of the difference of the pressure of the tires on the two sides and the maximum change rate F<max> of the pressure of the tires are preset; the pressure of the tires on the two sides is monitored and counted in real time, and the real-time pressure difference absolute value deltaP=|P1-P2| and the change rates F<1>=dp/dt and F<2>=dp/dt of the pressure of the tires on the two sides are analyzed;deltaP>=deltaP<max>, F<1>>=F<max> and F<2>>=F<max> are judged; when deltaP>=deltaP<max> or F<1>>=F<max> or F<2>>=F<max>, it is judged that a car body has the rollover risk, and meanwhile a warning signal and an engine forced-control signal are output.
Description
Technical field
The present invention relates to passenger vehicle traffic safety monitoring and warning technical field, pre-particularly to the rollover of a kind of passenger vehicle based on tire pressure monitoring
Alarm method.
Background technology
The motorbus bodywork height having at present is the highest, and storage room also compares significantly.Due to passenger vehicle car load real time barycentre position
The difference put with volume, density, luggage placement location and the passengers quantity of storage room luggage, passenger institute seat and different.When
Storage room is empty, and when having occupied passenger on the seat of upper strata, the center of gravity of car load will become the highest；Equally, relatively collect when luggage
In side in storage room time, car load center of gravity also can be made to deviate to side.The turning that now a speed is too fast, i.e. causes
The risk of car load rollover.
Major part driver mainly by the speed of car body and instant in the case of the inclination degree of vehicle body carry out the wind of perception rollover tendency
Danger, thus realize controlling the stable enforcement of vehicle body, but this is the most insecure, because in the case of Ji Shi, speed is fast and turns
Curved the most underway, driver's perception the most out of control is slipped up, and consequence is hardly imaginable.Present passenger vehicle the most all uses variation rigidity to design
Air spring, it is possible to the actual side tilt angle of vehicle body perceived is all smaller, more makes the subjective perception ability of driver
Unreliable.
Existing automobile middle part divides and possesses tire pressure monitoring system, monitors pressure of tire in real time by the sensor being arranged in tire,
And the tire pressure signal monitored is sent to tire pressure processing and control element (PCE), tire pressure processing and control element (PCE) send out after carrying out Treatment Analysis
The display device delivered on instrument board shows, and before vehicle will be turned on one's side, the tire pressure of automobile can be because of vehicle body centre-of gravity shift
And change, the most how to use tire pressure as judging whether vehicle body has the foundation being inclined to of turning on one's side and become the present invention in advance
Main design thought.
Summary of the invention
It is an object of the invention to provide a kind of passenger vehicle based on tire pressure monitoring rollover method for early warning, its technical problem to be solved
Being: the damping performance of passenger vehicle is superior at present, exercise performance strong, driver can carry out perception vehicle body by body roll degree and turn on one's side
The difficulty of risk is increasing, and the device for rollover early warning is fewer.
For solving above-mentioned technical problem, the present invention provides a kind of passenger vehicle based on tire pressure monitoring rollover method for early warning, first, in real time
Gather tire pressure P1 and P2 of automobile front axle both sides tire；Preset the maximum value Δ P of a both sides tire pressure pressure reductionmaxAnd tire pressure
Maximum rate of change Fmax；The tire pressure of monitoring and statistics both sides tire in real time, and analyze real-time pressure reduction absolute value delta P=| P1-P2 |,
And the rate of change F of the tire pressure of both sides tire1=dp/dt, F2=dp/dt；Judge Δ P >=Δ Pmax、F1≥FmaxAnd F2≥Fmax,
As Δ P >=Δ PmaxOr F1≥FmaxOr F2≥FmaxThen it is judged to that vehicle body exists and rolls danger, export alarm signal simultaneously and send out
Motivation forces control signal.
It is preferable over: the described front axle both sides tire of the device for monitoring tyre pressure Real-time Collection by being arranged in the tire of described front axle both sides
Tire pressure P1 and P2, and tire pressure P1 and P2 of the described front axle both sides tire of Real-time Collection is sent to tire pressure process control single
Unit carries out Treatment Analysis, and the information transmission after analysis shows to display device.
Be preferable over: be additionally provided with audible alerts device and warning lamp, described alarm signal control simultaneously described audible alerts device and
Warning lamp works.
It is preferable over: described motivation forces control signal to be that engine reduces power output signal, and control signal forced by described engine
For: described tire pressure processing and control element (PCE) is signaled to Engine ECU, forces to reduce Engine Injection Mass.
It is preferable over: the power output that described motivation forces control signal to control engine is reduced to the travel speed of automobile and is less than
30Km/h, until tire pressure P1 and P2 of monitoring in real time is analyzing described Δ P < Δ Pmax, described F1<FmaxAnd described F2<
FmaxAfter, stop exporting described alarm signal and described motivation forces control signal.
Compared with prior art, the invention has the beneficial effects as follows:
One, the present invention carries out implementing based on tire pressure monitoring system original on automobile, therefore few to automobile improvement work, only needs
Original Engine ECU writes the execution program of the present invention, and Monitoring Data is few, the most only need to monitor automobile front axle
The tire pressure of both sides tire；
Two, can make after being analyzed and roll dangerous judgement, therefore when vehicle body because loading is unreasonable, inclination causes
The both sides tire pressure that causes of vehicle body centre-of gravity shift different, when the absolute value of both sides tire pressure pressure reduction exceedes setting value, i.e. there is rollover
Risk can send early warning signal and force to control drop engine speed (utilizing engine braking principle to promote vehicle deceleration), thus
Peril is avoided to occur；
Three, by the monitoring of both sides tire pressure rate of change, it is possible to earlier find to roll danger, it is to avoid because tire is abnormal or
During turning, speed is fast, it is fast to beat steering wheel and causes vehicle body both sides discontinuity to be turned on one's side, and can effectively avoid quickly turning
To and hit the dangerous driving actions such as steering wheel, stopped the existence of hazards further.
Accompanying drawing explanation
Fig. 1 is the method operational process structural representation of the present invention.
Detailed description of the invention
A kind of based on tire pressure monitoring the passenger vehicle rollover early warning side present invention proposed below with reference to accompanying drawing 1 and preferred embodiment
Method is described in greater detail below.
A kind of passenger vehicle based on tire pressure monitoring rollover method for early warning, it comprises the steps:
The first step, information gathering, before being arranged at the Real-time Collection automobile of the device for monitoring tyre pressure in the tire of automobile front axle both sides
Tire pressure P1 and P2 of axle both sides tire；
Second step, default control threshold values, write the maximum value Δ P of both sides tire pressure pressure reduction in the memory of car running computermax
And the maximum rate of change F of tire pressuremax；
3rd step, Information Statistics analysis, the tire pressure of real-time monitoring and statistics both sides tire, and carried out by tire pressure processing and control element (PCE)
Analyze, analyze real-time pressure reduction absolute value delta P=| P1-P2 |, and the rate of change F of the tire pressure of both sides tire1=dp/dt,
F2=dp/dt, the display device (instrument board or display screen) that the information after simultaneously analyzing sends in real time to automobile front operation table enters
Row display；
4th step, rollover early warning judge, it is judged that above-mentioned Δ P >=Δ Pmax、F1≥FmaxAnd F2≥Fmax, when described Δ P,
F1、F2In any one numerical value more than preset threshold values time, i.e. Δ P >=Δ PmaxOr F1≥FmaxOr F2≥FmaxThen it is judged to
There is inclination danger in vehicle body, control signal forced by output alarm signal and engine simultaneously, and wherein, described engine is forced to control
Signal processed is that engine reduces power output signal, and described motivation pressure control signal is: described tire pressure processing and control element (PCE) sends
Signal, to Engine ECU, is forced to reduce Engine Injection Mass, thus is forced the power output of engine automatically to decline.
The present invention in the specific implementation, all can cause vehicle owing to the unreasonable loading of vehicle or vehicle travel on tilted road surface
Centre-of gravity shift, thus the tire pressure of both sides tire can be caused inconsistent, when the tire pressure pressure reduction absolute value of both sides tire is more than presetting
Threshold values Δ PmaxTime, illustrate that the outer force unbalance that vehicle body both sides are subject to has reached a dangerous critical value, therefore can sentence
Being set to vehicle body and there is inclination danger, output alarm signal is to point out driver simultaneously；And work as F1、F2In any one numerical value be more than
The threshold values F presetmaxTime, then because tire loses heart rapidly or in the case of fast speed, driver suddenly beats steering wheel and turns rapidly during possibility
Curved cause vehicle body center of gravity quickly to lopsidedness, now can be judged to vehicle body exist roll danger；In any one situation above-mentioned
Under, the equal output engine of Engine ECU forces control signal to reduce power output to control engine, utilizes engine braking
Principle makes vehicle body reduction of speed, thus ensures the steady of vehicle body, it is to avoid dangerous generation, the method for the present invention sets based on automobile original system
Putting, change low cost, the feasibility of enforcement is high, it is possible to the existence of the danger that gives warning in advance, and automatically controlled engine reduces output
Power, fundamentally makes vehicle deceleration, and by engine braking reduction of speed, prevents because anxious the touching on the brake of driver causes dangerous generation
Or stepping on clutch causes automobile to be lost control of because inertia is too big.
It addition, be additionally provided with on the front operating desk of automobile cab audible alerts device (can be loudspeaker or siren or
Buzzer) and warning lamp, described alarm signal controls the actuator (switch) of described audible alerts device and warning lamp simultaneously
Work, thus it is dangerous to point out driver's vehicle body to there is rollover, needs with caution, smooth ride.
The power output utilizing described motivation to force control signal to control engine is reduced to the travel speed of automobile and is less than
30Km/h, until tire pressure P1 and P2 of monitoring in real time is analyzing described Δ P < Δ Pmax, described F1<FmaxAnd described F2
<FmaxAfter, stop exporting described alarm signal and described motivation forces control signal.
Comprehensive described, technical scheme sufficiently effective can complete foregoing invention purpose, and the structure of the present invention is former
Reason and the principle of work and power are the most sufficiently verified, and can reach intended effect and purpose, and the present invention
Embodiment can also convert according to these principles, and therefore, the present invention includes that all are previously mentioned scope in claim
Interior all replacement contents.Any equivalence change made in scope of the present invention patent, all belongs to the patent model of this case application
Within enclosing.
Claims (5)
1. a passenger vehicle based on tire pressure monitoring rollover method for early warning, it is characterised in that: first, Real-time Collection automobile front axle both sides
Tire pressure P1 and P2 of tire；Preset the maximum value Δ P of a both sides tire pressure pressure reductionmaxAnd the maximum rate of change F of tire pressuremax；
The tire pressure of monitoring and statistics both sides tire in real time, and analyze real-time pressure reduction absolute value delta P=| P1-P2 |, and the tire of both sides tire
The rate of change F of pressure1=dp/dt, F2=dp/dt；Judge Δ P >=Δ Pmax、F1≥FmaxAnd F2≥Fmax, as Δ P >=Δ PmaxOr
F1≥FmaxOr F2≥FmaxThen being judged to that vehicle body exists and roll danger, output alarm signal and engine are forced to control letter simultaneously
Number.
2. passenger vehicle based on tire pressure monitoring rollover method for early warning as claimed in claim 1, it is characterised in that: by being arranged at
State tire pressure P1 and P2 of the described front axle both sides tire of device for monitoring tyre pressure Real-time Collection in the tire of front axle both sides, and will be in real time
Tire pressure P1 and the P2 transmission of the described front axle both sides tire gathered carries out Treatment Analysis, after analysis to tire pressure processing and control element (PCE)
Information transmission shows to display device.
3. passenger vehicle based on tire pressure monitoring rollover method for early warning as claimed in claim 2, it is characterised in that: it is additionally provided with audio frequency
Attention device and warning lamp, described alarm signal controls described audible alerts device and warning lamp work simultaneously.
4. passenger vehicle based on tire pressure monitoring rollover method for early warning as claimed in claim 2, it is characterised in that: described motivation is forced
Control signal is that engine reduces power output signal, and described motivation pressure control signal is: described tire pressure processing and control element (PCE) is sent out
Go out signal and reduce Engine Injection Mass to Engine ECU, pressure.
5. passenger vehicle based on tire pressure monitoring rollover method for early warning as claimed in claim 4, it is characterised in that: described motivation is forced
The power output of control signal control engine is reduced to the travel speed of automobile and is less than 30Km/h, until the tire pressure of monitoring in real time
P1 and P2 is analyzing described Δ P < Δ Pmax, described F1<FmaxAnd described F2<FmaxAfter, stop exporting described warning
Signal and described motivation force control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398549.XA CN105856980A (en) | 2016-06-07 | 2016-06-07 | Passenger-car rollover early-warning method based on tire pressure monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398549.XA CN105856980A (en) | 2016-06-07 | 2016-06-07 | Passenger-car rollover early-warning method based on tire pressure monitoring |
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| Publication Number | Publication Date |
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| CN105856980A true CN105856980A (en) | 2016-08-17 |
Family
ID=56675981
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610398549.XA Pending CN105856980A (en) | 2016-06-07 | 2016-06-07 | Passenger-car rollover early-warning method based on tire pressure monitoring |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945659A (en) * | 2017-03-24 | 2017-07-14 | 南京航空航天大学 | The car for guarding against side turned over prior-warning device and method deformed based on Wheel slip |
| CN107767490A (en) * | 2017-10-24 | 2018-03-06 | 合肥工业大学 | A kind of method judged for fork truck rollover instability status |
| CN110196092A (en) * | 2018-02-26 | 2019-09-03 | 长城汽车股份有限公司 | A kind of car load unevenness detection method, device and vehicle |
| CN110239508A (en) * | 2019-05-08 | 2019-09-17 | 浙江吉利控股集团有限公司 | A kind of control method for vehicle, vehicle control system and the vehicle with the system |
| CN110450699A (en) * | 2019-08-23 | 2019-11-15 | 淮安信息职业技术学院 | A kind of tank truck rollover leakage parameters detection system and its detection method |
| CN111547044A (en) * | 2020-03-31 | 2020-08-18 | 桂林电子科技大学 | Truck curve automatic driving training method and system |
| CN113386647A (en) * | 2021-07-30 | 2021-09-14 | 东风商用车有限公司 | Method, system, vehicle, device and readable storage medium for preventing dump truck from tilting |
| CN113968105A (en) * | 2021-12-07 | 2022-01-25 | 中国第一汽车股份有限公司 | Method, device, equipment and storage medium for detecting tire pressure abnormity |
| CN115257253A (en) * | 2022-09-02 | 2022-11-01 | 长城汽车股份有限公司 | Tire pressure calculation method, device, equipment and vehicle |
| FR3124780A1 (en) * | 2021-07-01 | 2023-01-06 | Psa Automobiles Sa | METHOD FOR DETECTION AND ANTICIPATION OF ROLLOVER OF A VEHICLE AND ASSOCIATED VEHICLE |
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| CN201052734Y (en) * | 2007-03-14 | 2008-04-30 | 师海峰 | Vehicle tyre air pressure automatic control mechanism |
| CN201659894U (en) * | 2010-03-25 | 2010-12-01 | 刘梦真 | Multi-factor early-warning control device for automobile run-flat tires |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945659A (en) * | 2017-03-24 | 2017-07-14 | 南京航空航天大学 | The car for guarding against side turned over prior-warning device and method deformed based on Wheel slip |
| CN107767490A (en) * | 2017-10-24 | 2018-03-06 | 合肥工业大学 | A kind of method judged for fork truck rollover instability status |
| CN110196092A (en) * | 2018-02-26 | 2019-09-03 | 长城汽车股份有限公司 | A kind of car load unevenness detection method, device and vehicle |
| CN110239508A (en) * | 2019-05-08 | 2019-09-17 | 浙江吉利控股集团有限公司 | A kind of control method for vehicle, vehicle control system and the vehicle with the system |
| CN110450699A (en) * | 2019-08-23 | 2019-11-15 | 淮安信息职业技术学院 | A kind of tank truck rollover leakage parameters detection system and its detection method |
| CN111547044A (en) * | 2020-03-31 | 2020-08-18 | 桂林电子科技大学 | Truck curve automatic driving training method and system |
| CN111547044B (en) * | 2020-03-31 | 2022-01-28 | 桂林电子科技大学 | Truck curve automatic driving training method and system |
| FR3124780A1 (en) * | 2021-07-01 | 2023-01-06 | Psa Automobiles Sa | METHOD FOR DETECTION AND ANTICIPATION OF ROLLOVER OF A VEHICLE AND ASSOCIATED VEHICLE |
| CN113386647A (en) * | 2021-07-30 | 2021-09-14 | 东风商用车有限公司 | Method, system, vehicle, device and readable storage medium for preventing dump truck from tilting |
| CN113968105A (en) * | 2021-12-07 | 2022-01-25 | 中国第一汽车股份有限公司 | Method, device, equipment and storage medium for detecting tire pressure abnormity |
| CN115257253A (en) * | 2022-09-02 | 2022-11-01 | 长城汽车股份有限公司 | Tire pressure calculation method, device, equipment and vehicle |
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Application publication date: 20160817 |
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