CN106314046B - Determine the method, apparatus and system of rotation angle of the tyre pressure sensor in wheel - Google Patents
Determine the method, apparatus and system of rotation angle of the tyre pressure sensor in wheel Download PDFInfo
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- CN106314046B CN106314046B CN201610688921.0A CN201610688921A CN106314046B CN 106314046 B CN106314046 B CN 106314046B CN 201610688921 A CN201610688921 A CN 201610688921A CN 106314046 B CN106314046 B CN 106314046B
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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
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0489—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors for detecting the actual angular position of the monitoring device while the wheel is turning
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- Measuring Fluid Pressure (AREA)
Abstract
The method, apparatus and system of a kind of rotation angle of determining tyre pressure sensor in wheel, the method includes：Obtain the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel；The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of tyre pressure sensor is determined using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function；And rotation angle of the corresponding tyre pressure sensor in wheel in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to the correspondence.Thus, it is possible to determine rotation angle of the tyre pressure sensor in wheel, in turn, reliable method is provided for rotation angle of the selection tyre pressure sensor in wheel.
Description
Technical field
The present invention relates to automotive wheels to monitor field, and in particular to a kind of rotation angle of determining tyre pressure sensor in wheel
The method, apparatus and system of degree.
Background technology
Automotive tire pressure real-time monitoring system (TPMS), be mainly used in running car in real time to tire pressure into
The automatic monitoring of row, with guarantee driving safety, is the life peace of motorist, rider to having a flat tire and low pressure is alarmed
All risk insurance hinders early warning system.Monitoring tire pressure module on automobile tire is tyre pressure sensor, due to inside tires
Can not directly be connect with vehicle by cable, and in order to ensure transmission range and avoiding travel by interfere with each other, therefore at present
The transmission of all tyre pressure sensor information in market all will use the radio frequency (RF) of 1MHz to transmit, but the metals such as vehicle hub, chassis
There are certain shielding, the real-time and stability of information transmission to be all a greater impact to this signal.Wheel is in rotation process
In, when tyre pressure sensor carries out data transmission, if hub for vehicle wheel is exactly between tyre pressure sensor and receiver, due to
The interference of wheel hub causes the success rate of data transmission to be lower.Tyre pressure sensor cannot be made into line number with suitably determining angle
According to transmission, data transmission success can be caused low.
Therefore, how to determine rotation angle of the tyre pressure sensor of automobile in wheel, keep tyre pressure sensor selection suitable
Determination angle carry out data send become urgent problem to be solved.
Invention content
The technical problem to be solved in the present invention is rotation angle of the tyre pressure sensor of determining automobile in wheel, makes tire
The suitably determining angle of pressure sensor selection carries out data transmission.
For this purpose, according in a first aspect, a kind of rotation an embodiment of the present invention provides determining tyre pressure sensor in wheel
The method of angle, this method comprises the following steps：
Obtain the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel；Based on preset function profit
Acceleration and rotation of the tyre pressure sensor in wheel of tyre pressure sensor are determined with the acceleration sampled value extreme value of tyre pressure sensor
The correspondence of gyration；Corresponding tire in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to correspondence
Rotation angle of the pressure sensor in wheel.
It is preferably based on preset function and determines adding for tyre pressure sensor using the acceleration sampled value extreme value of tyre pressure sensor
The correspondence of speed and rotation angle of the tyre pressure sensor in wheel, including：Calculate the acceleration sampled value of adjacent periods
The difference of extreme value；Handing value is carried out to preset function using difference and determines acceleration and rotation of the tyre pressure sensor in wheel
The correspondence of angle.
Preferably, the difference of the acceleration sampled value extreme value of adjacent periods is calculated, including：Calculate adding for multiple adjacent periods
Difference between speed sampling value extreme value；Using the average value for the multiple differences being calculated as the tyre pressure sensor of adjacent periods
Acceleration sampled value extreme value difference.
Preferably, the acceleration sampled value extreme value of tyre pressure sensor is peak acceleration sampled value, obtains wheel at least two
The acceleration sampled value extreme value of tyre pressure sensor in a rotation period, including：It obtains multiple at least two rotation period of wheel
The acceleration sampled value of tyre pressure sensor；It is sequentially selected in the acceleration sampled value of multiple tyre pressure sensors in same period
Three continuous acceleration sampled values；Judge intermediate acceleration sampled value whether be simultaneously greater than preceding acceleration sampled value and
Posterior acceleration sampled value；If intermediate acceleration sampled value be simultaneously greater than preceding acceleration sampled value and it is posterior plus
Speed sampling value, then using intermediate acceleration sampled value as the peak acceleration sampled value in the period of place.
Preferably, tyre pressure sensor acceleration sampled value extreme value is minimum acceleration sampled value, obtains vehicle wheel rotation extremely
The acceleration sampled value extreme value of the tyre pressure sensor in few two periods, including：It obtains multiple at least two rotation period of wheel
The acceleration sampled value of tyre pressure sensor；It is sequentially selected in the acceleration sampled value of multiple tyre pressure sensors in same period
Three continuous acceleration sampled values；Judge intermediate acceleration sampled value whether simultaneously less than preceding acceleration sampled value with
Posterior acceleration sampled value；If intermediate acceleration sampled value simultaneously less than preceding acceleration sampled value and it is posterior plus
Speed sampling value, then using intermediate acceleration sampled value as the minimum acceleration sampled value in the period of place.
Preferably, corresponding tire pressure in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to correspondence
Rotation angle of the sensor in wheel, including：According to the particular value of the acceleration of tyre pressure sensor, obtained using correspondence
Rotation angle of two tyre pressure sensors in wheel in particular value corresponding period of the acceleration of tyre pressure sensor；Root
The variation tendency of current acceleration is obtained according to the particular value and adjacent moment acceleration value of acceleration；It is determined and is added according to variation tendency
The particular value of speed corresponds to rotation angle of the tyre pressure sensor in wheel.
According to second aspect, the embodiment of the present invention additionally provides a kind of tire pressure data transmission method for uplink, and this method includes as follows
Step：
Obtain the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel；Based on preset function profit
Acceleration and rotation of the tyre pressure sensor in wheel of tyre pressure sensor are determined with the acceleration sampled value extreme value of tyre pressure sensor
The correspondence of gyration；Corresponding tire in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to correspondence
Rotation angle of the pressure sensor in wheel；When rotation angle of the tyre pressure sensor in wheel is predetermined value, to receiving terminal
Send tire pressure data.
The embodiment of the present invention additionally provides a kind of rotation angle dress of the rotation angle of determining tyre pressure sensor in wheel
It sets, including：
First acquisition module, the acceleration sampled value pole for obtaining tyre pressure sensor at least two rotation period of wheel
Value；First determining module, for determining that tire pressure senses using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of device；First angle obtains module, is used for basis
Rotation of the corresponding tyre pressure sensor in wheel in real time when the acceleration that correspondence obtains tyre pressure sensor is a certain particular value
Gyration.
Preferably, correspondence determining module, including：First computational submodule, the acceleration for calculating adjacent periods
The difference of sampled value extreme value；First determination sub-module determines that tire pressure passes for carrying out handing value to preset function using difference
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of sensor.
Preferably, the first computational submodule, including：Computing unit, the acceleration for calculating multiple adjacent periods sample
The difference being worth between extreme value；Determination unit, for using the average value for the multiple differences being calculated as the tire pressure of adjacent periods
The difference of the acceleration sampled value extreme value of sensor.
Preferably, the acceleration sampled value extreme value of tyre pressure sensor is peak acceleration sampled value, the first acquisition module, packet
It includes：First acquisition submodule, the acceleration sampled value for obtaining multiple tyre pressure sensors at least two rotation period of wheel；
First choice submodule, sequentially select in the acceleration sampled value of multiple tyre pressure sensors in same period three it is continuous
Acceleration sampled value；First judging submodule, for judging whether intermediate acceleration sampled value is simultaneously greater than preceding acceleration
Spend sampled value and posterior acceleration sampled value；Second determination sub-module, if big simultaneously for intermediate acceleration sampled value
In preceding acceleration sampled value and posterior acceleration sampled value, then using intermediate acceleration sampled value in the period as where
Peak acceleration sampled value.
Preferably, the acceleration sampled value extreme value of tyre pressure sensor is minimum acceleration sampled value, the first acquisition module, packet
It includes：Second acquisition submodule, the acceleration sampled value for obtaining multiple tyre pressure sensors at least two rotation period of wheel；
Second selects submodule, and three companies are sequentially selected in the acceleration sampled value for multiple tyre pressure sensors in same period
Continuous acceleration sampled value；Second judgment submodule, for judging it is preceding whether intermediate acceleration sampled value is less than simultaneously
Acceleration sampled value and posterior acceleration sampled value；Third determination sub-module, if the acceleration sampled value for intermediate is same
When be less than preceding acceleration sampled value and posterior acceleration sampled value, then it is all where being used as intermediate acceleration sampled value
Minimum acceleration sampled value in phase.
Preferably, first angle obtains module, including：Second computational submodule, for the acceleration according to tyre pressure sensor
Two in particular value corresponding period of the acceleration of tyre pressure sensor are calculated using correspondence for the particular value of degree
Rotation angle of the tyre pressure sensor in wheel；Trend obtains submodule, for adding according to the particular value and subsequent time of acceleration
Speed is worth to the variation tendency of current acceleration；Angle obtains submodule, the spy for determining acceleration according to variation tendency
Definite value corresponds to rotation angle.
The embodiment of the present invention additionally provides a kind of tire pressure data sending device, including：
Second acquisition module, the acceleration sampled value pole for obtaining tyre pressure sensor at least two rotation period of wheel
Value；Second determining module, for determining that tire pressure senses using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of device；Second angle obtains module, is used for basis
Rotation of the corresponding tyre pressure sensor in wheel in real time when the acceleration that correspondence obtains tyre pressure sensor is a certain particular value
Gyration；Sending module, for when rotation angle of the tyre pressure sensor in wheel is predetermined value, tire pressure to be sent to receiving terminal
Data.
The system that the embodiment of the present invention further provides a kind of rotation angle of determining tyre pressure sensor in wheel, packet
It includes：
Tyre pressure sensor, the acceleration for acquiring and measuring tyre pressure sensor, and send for characterizing tyre pressure sensor
Acceleration data-signal；Signal receiving device, the data-signal for receiving the acceleration for characterizing tyre pressure sensor；
Processor is connect with signal receiving device, determines tyre pressure sensor in wheel for executing any one of above-described embodiment such as
Rotation angle method or tire pressure data transmission method for uplink.
The method, apparatus and system of rotation angle of the determining tyre pressure sensor provided in an embodiment of the present invention in wheel,
By the acceleration sampled value extreme value for obtaining tyre pressure sensor at least two rotation period of wheel；Tire is utilized based on preset function
The acceleration sampled value extreme value of pressure sensor determines the acceleration and rotation angle of the tyre pressure sensor in wheel of tyre pressure sensor
The correspondence of degree；And corresponding tire pressure in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to correspondence
Rotation angle of the sensor in wheel.Thus, it is possible to rotation angle of the tyre pressure sensor in wheel be determined, in turn, for choosing
It selects rotation angle of the tyre pressure sensor in wheel and reliable method is provided.
It is adopted as a preferred technical solution, by obtaining the acceleration of tyre pressure sensor at least two rotation period of wheel
Sample value extreme value；Based on preset function using the acceleration sampled value extreme value of tyre pressure sensor determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel；And the acceleration that tyre pressure sensor is obtained according to correspondence is
Rotation angle of the corresponding tyre pressure sensor in wheel in real time when a certain particular value, when rotation of the tyre pressure sensor in wheel
When angle is predetermined value, tire pressure data are sent to receiving terminal.And then tyre pressure sensor can be made to select suitable angle into line number
According to transmission, it is further ensured that traffic safety.
The acceleration of automotive wheel is acquired and measured as a preferred technical solution, by tyre pressure sensor, and transmission is used for
The data-signal of the acceleration of tyre pressure sensor is characterized, and then signal receiving device receives the acceleration for characterizing tyre pressure sensor
The data-signal of degree, processor connect row information interaction of going forward side by side with signal receiving device, handle for characterizing tyre pressure sensor
The data-signal of acceleration executes the method for determining rotation angle of the tyre pressure sensor in wheel and the side for sending tire pressure data
Method senses the rotation angle in wheel to realize determining tire pressure, tyre pressure sensor is made to select suitable angle into line number
According to transmission.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the tyre pressure sensor position distribution schematic diagram in the embodiment of the present invention；
Fig. 2 shows the flows of the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 1 in wheel
Figure；
Fig. 3 shows the flow of the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 2 in wheel
Figure；
Fig. 4 shows the flow chart of rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 3 in wheel；
Fig. 5 shows the flow of the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 4 in wheel
Figure；
Fig. 6 shows wheel in the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 4 in wheel
Uniform motion brief acceleration change curve and variation tendency schematic diagram；
Fig. 7 shows wheel in the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 4 in wheel
Accelerate brief acceleration change curve and variation tendency schematic diagram；
Fig. 8 shows wheel in the method for rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 4 in wheel
Retarded motion brief acceleration change curve and variation tendency schematic diagram；
Fig. 9 shows the signal of the device of rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 5 in wheel
Figure；
Figure 10 shows the schematic diagram of the tire pressure data sending device of the embodiment of the present invention 6；
Figure 11 shows the signal of the system of rotation angle of the determination tyre pressure sensor of the embodiment of the present invention 7 in wheel
Figure.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term "upper", "lower", "left", "right"
It is to be based on the orientation or positional relationship shown in the drawings to set relationship, is merely for convenience of description of the present invention and simplification of the description, rather than
Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and should not be understood as
Instruction implies relative importance.
Embodiment 1
Present embodiment discloses a kind of rotation angle method of determining tyre pressure sensor in wheel, this method utilizes tire pressure
Sensor can acquire the acceleration suffered by itself to determine rotation angle of the tyre pressure sensor in wheel, as shown in Figure 1, tire
Pressure sensor 1 is mounted on hub for vehicle wheel 2, and certain tyre pressure sensor 1 can also be mounted on tire.It is clear in order to describe, with
The angle α in tyre pressure sensor and the wheel center of circle direction straight up is wheel rotation angle.
Fig. 2 shows the flows of the method for rotation angle of the tyre pressure sensor according to the ... of the embodiment of the present invention in wheel
Figure, this method may include steps of：
S11. the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel is obtained.Specific real
It applies in example, during vehicle wheel rotation, obtains the acceleration sampled value of tyre pressure sensor, the acceleration got in real time first
It can be acceleration of the tyre pressure sensor in wheel radial direction, can be acceleration of the tyre pressure sensor in wheel tangential direction
Degree.In the present embodiment, as shown in Figure 1, during vehicle wheel rotation, radial direction that tyre pressure sensor can acquire plus
Speed is made of the acceleration of gravity of tyre pressure sensor in the component of radial direction and the centripetal acceleration of tyre pressure sensor.It can
The acceleration of the collected radial direction of tyre pressure sensor is indicated by following formula (1)：
A=gcos α+aTo (1)
Wherein, a is the acceleration sampled value of tyre pressure sensor acquisition, and g is acceleration of gravity, and α is wheel rotation angle, aTo
For centripetal acceleration.
Likewise, the acceleration for the tangential direction that tyre pressure sensor can also acquire is by tyre pressure sensor acceleration of gravity
In the component of tangential direction and the tangential acceleration composition of tyre pressure sensor.It can indicate that tyre pressure sensor is adopted by following formula (2)
The acceleration of the tangential direction collected：
A=gsin α+aIt cuts (2)
Wherein, a is the acceleration sampled value of tyre pressure sensor acquisition, and g is acceleration of gravity, and α is wheel rotation angle, aIt cuts
For centripetal acceleration.
It should be noted that in the process of running due to vehicle, including speed, acceleration etc. may all be variations,
Therefore the centripetal acceleration a in above-mentioned formula (1) and (2)ToWith tangential acceleration aIt cutsIt is unknown.Above-mentioned formula is served only for indicating vehicle
The composition of the acceleration acquired in the process of running.
In the present embodiment, enough data are acquired for guarantee, determine the variation tendency of acceleration whithin a period of time,
Do not cause data volume excessively huge simultaneously, needs the acceleration sampled value for acquiring the tyre pressure sensor at least two periods, certainly,
Three periods, the acceleration etc. in four periods can also be acquired.
By above-mentioned formula (1) or formula (2) it is found that in same period the acceleration of tyre pressure sensor distribution in class just
Cosine curve changes, and wheel often turns over a cycle, and tyre pressure sensor all can be there are two extreme value, peak acceleration sampled value and most
Small acceleration sampled value.After the acceleration sampled value for obtaining tyre pressure sensor acquisition, the acceleration sampling in each period is obtained
It is worth extreme value, i.e. peak acceleration sampled value or minimum acceleration sampled value.
S12. the acceleration of tyre pressure sensor is determined using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of degree and rotation angle of the tyre pressure sensor in wheel.Specifically, can tyre pressure sensor be indicated by preset function
Acceleration and rotation angle of the tyre pressure sensor in wheel correspondence.Above-mentioned formula (1) or formula (2) pass for tire pressure
The correspondence of the acceleration and wheel rotation angle of sensor.But since wheel is in rotation process, centripetal acceleration and tangential
Acceleration may change at any time, can not accurately represent the corresponding pass of acceleration rotation angle in wheel of tire pressure sensing
System, preset function can be by formula (3) expression radial acceleration as a result,：
Wherein, a is the acceleration of tyre pressure sensor, and g is the acceleration of gravity of tyre pressure sensor, and a1 is when sampling for the first time
Centripetal acceleration, α be tire pressure sensing acceleration in wheel rotation angle, Δ be adjacent periods same position acceleration
Difference, such as can be the peak acceleration of adjacent periods or the difference of minimum acceleration.
After obtaining the peak acceleration or minimum acceleration in each sampling period, so that it may to determine adding for tyre pressure sensor
The correspondence of speed and rotation angle of the tyre pressure sensor in wheel.
S13. obtain when the acceleration of tyre pressure sensor is a certain particular value that corresponding tire pressure is passed in real time according to correspondence
Rotation angle of the sensor in wheel.In the particular embodiment, by above-mentioned formula (3) it is found that when determining tyre pressure sensor
When a certain particular value, rotation angle of two tyre pressure sensors in wheel can be corresponded to.It needs according to last moment and next
The acceleration at moment determines the variation tendency of acceleration, since corresponding two angles of a determining acceleration value are in respectively
First transition and last transition can determine that current acceleration is corresponding unique according to the variation tendency of the acceleration of the determination
Angle.For example, rotation angle of the corresponding tyre pressure sensor of acceleration of current a certain determination in wheel be α=30 ° and α=
330 °, at rotation angle α=30 ° of the tyre pressure sensor in wheel, the variation tendency of acceleration is over time
Acceleration value becomes larger, when rotation angle of the tyre pressure sensor in wheel is α=330 °, the variation tendency of acceleration be with
The passage of time, acceleration tapers into.So as to distinguish the acceleration of some tyre pressure sensor in same period easily
It is worth rotation angle of the corresponding tyre pressure sensor in wheel.
S11 to S13 through the above steps obtains the acceleration sampling of tyre pressure sensor at least two rotation period of wheel
It is worth extreme value；The acceleration and tire of tyre pressure sensor are determined using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of rotation angle of the pressure sensor in wheel；And the acceleration that tyre pressure sensor is obtained according to correspondence is certain
Rotation angle of the corresponding tyre pressure sensor in wheel in real time when one particular value.Thus, it is possible to determine tyre pressure sensor in vehicle
Rotation angle in wheel provides reliable method for rotation angle of the selection tyre pressure sensor in wheel in turn.
Embodiment 2
In the present embodiment, by taking the peak acceleration sampled value in each period for obtaining vehicle wheel rotation as an example, in conjunction with Fig. 3
The method that rotation angle of the tyre pressure sensor according to the ... of the embodiment of the present invention in wheel is described in detail, this method may include as
Lower step：
S21. the acceleration sampled value of multiple tyre pressure sensors at least two rotation period of wheel is obtained.Specifically, may be used
With referring to the description for being obtained to acceleration sampled value in step S11 in embodiment 1.
S22. three are sequentially selected continuously to add in the acceleration sampled value of multiple tyre pressure sensors in same period
Speed sampling value.
S23. judge whether intermediate acceleration sampled value is simultaneously greater than preceding acceleration sampled value and posterior acceleration
Spend sampled value.If intermediate acceleration sampled value is simultaneously greater than preceding acceleration sampled value and the sampling of posterior acceleration
Value, then enter step S24.If intermediate acceleration sampled value be not simultaneously greater than preceding acceleration sampled value and it is posterior plus
Speed sampling value, then return to step S22 continue select acceleration sampled value.In the particular embodiment, for example, can take continuous
Three acceleration sampled value A1、A2And A3If A2More than A1And A2Less than A3Or A2Less than A1And A2More than A3, then selected by explanation
Continuous three acceleration values taken exist in same first transition or same last transition in three acceleration sampled values of selection
It is not peak acceleration sampled value in the period, needs return to step S22.A mobile sample values continue to choose continuous
Three acceleration sampled value A2、A3And A4If A in the continuous three acceleration sampled values gotnMore than An-1And it is more than
An+1, then S24 can be entered step.
S24. the peak acceleration sampled value using intermediate acceleration sampled value in the period as where.It is arrived meeting to choose
Continuous three acceleration sampled values in AnMore than An-1And it is more than An+1, then may determine that as AnAccelerate to be maximum in the period
Spend sampled value.Preferably, when often judging a peak acceleration sampled value, a peak acceleration sampled value is recorded, even
It is continuous to record multiple peak acceleration sampled values.
In a preferred embodiment, in order to ensure the accuracy of wheel rotation angle identification, acceleration is sampled
Sample frequency is at least twice of vehicle wheel rotation frequency.Specifically, the peak acceleration in each period is judged in step S23
Sampled value, required three continuous acceleration sampled values need to be chosen in same period, if sample frequency turns less than wheel
Twice of dynamic frequency, the then continuous three acceleration sampled values chosen lead to the peak acceleration judged not in same period
Sampled value is inaccurate, is identified so as to cause wheel rotation angle inaccurate.Can be vehicle wheel rotation to the sample frequency of acceleration
3 times, 10 times, 20 times or more multiples more than twice of frequency.Sample frequency is related with tyre pressure sensor performance, sampling frequency
Rate is higher, rotation angle accuracy of identification is higher, user can rotation angle as needed accuracy of identification selection different performance
Tyre pressure sensor.It specifically, can be public according to circular motion linear velocity according to general vehicle travel speed prediction vehicle wheel rotational speed V
Formula：The big almost periodic of predictable vehicle wheel rotation, such as sample in one cycle 36 times, then sampling precision is 10 °, can
Know, rotational angle accuracy of identification of the tyre pressure sensor in wheel is 10 °, can be according to vehicle wheel rotation period and required identification
Precision determines suitable sample frequency to select suitable tyre pressure sensor.
S25. the difference of the peak acceleration sampled value of adjacent periods is calculated.One can be calculated in the particular embodiment
The difference of the peak acceleration sampled value in two adjacent periods, in order to further ensure the accuracy of the difference calculated, into
And can accurately determine rotation angle of the tyre pressure sensor in wheel, calculate the acceleration sampling of multiple adjacent periods
The difference being worth between extreme value.In the period of sampling, the difference of an adjacent periods is only calculated as determining acceleration and rotation
The correspondence of angle may be such that result is deviated, and need the difference for the acceleration sampled value extreme value for calculating multiple adjacent periods
Value.Using the average value of obtained multiple differences of calculating as the difference of the acceleration sampled value of adjacent periods.In the present embodiment
In, it may be the interval equal period that multiple adjacent periods, which can be the period adjacent one by one, such as can be spaced a week
Phase, two periods etc..
S26. handing value is carried out to preset function using difference and determines acceleration and rotation of the tyre pressure sensor in wheel
The correspondence of gyration.In the particular embodiment, after obtaining difference, using the function call in program, by the difference
It is brought into above-mentioned formula (3), the acceleration comprising tyre pressure sensor and tyre pressure sensor are in wheel in obtained relational expression
In two unknown quantitys of rotation angle, so that it may with obtain rotation angle of the acceleration with tyre pressure sensor in wheel it is corresponding pass
System.
S27. obtain when the acceleration of tyre pressure sensor is a certain particular value that corresponding tire pressure is passed in real time according to correspondence
Rotation angle of the sensor in wheel.Specifically, it may refer to the description for step S13 in embodiment 1.
S21 to S27 through the above steps obtains the peak acceleration of tyre pressure sensor at least two rotation period of wheel
Sampled value；The acceleration and tire of tyre pressure sensor are determined using the peak acceleration sampled value of tyre pressure sensor based on preset function
The correspondence of rotation angle of the pressure sensor in wheel；And the acceleration that tyre pressure sensor is obtained according to correspondence is certain
Rotation angle of the corresponding tyre pressure sensor in wheel in real time when one particular value.Thus, it is possible to determine tyre pressure sensor in vehicle
Rotation angle in wheel provides reliable method for rotation angle of the selection tyre pressure sensor in wheel in turn.
Embodiment 3
In the present embodiment, by taking the minimum acceleration sampled value in each period for obtaining vehicle wheel rotation as an example, in conjunction with Fig. 4
The method that rotation angle of the determining tyre pressure sensor according to the ... of the embodiment of the present invention in wheel is described in detail, this method can wrap
Include following steps：
S31. the acceleration sampled value of multiple tyre pressure sensors at least two rotation period of wheel is obtained.Specifically, may be used
With referring to the description for being obtained to acceleration sampled value in step S11 in embodiment 1.
S32. three are sequentially selected continuously to add in the acceleration sampled value of multiple tyre pressure sensors in same period
Speed sampling value.
S33. judge intermediate acceleration sampled value whether simultaneously less than preceding acceleration sampled value and posterior acceleration
Spend sampled value.If intermediate acceleration sampled value is sampled less than preceding acceleration sampled value and posterior acceleration simultaneously
Value, then enter step S34.If be less than when intermediate acceleration sampled value difference preceding acceleration sampled value and it is posterior plus
Speed sampling value, then return to step S32 continue select acceleration sampled value.In the particular embodiment, for example, can take continuous
Three acceleration sampled value B1、B2And B3If B2More than B1And B2Less than B3Or B2Less than B1And B2More than B3, then selected by explanation
Continuous three acceleration values taken exist in same first transition or same last transition in three acceleration sampled values of selection
It is not minimum acceleration sampled value in the period, needs return to step S32 to move a sample values and continue to choose continuously
Three acceleration sampled value B2、B3And B4If B in the continuous three acceleration sampled values gotnLess than Bn-1And it is less than
Bn+1, then S34. can be entered step
S34. the minimum acceleration sampled value using intermediate acceleration sampled value in the period as where.If satisfaction is got
Continuous three acceleration sampled values in BnLess than Bn-1And it is less than Bn+1, then may determine that as BnAccelerate to be minimum in the period
Spend sampled value.Preferably, when often judging a minimum acceleration sampled value, a minimum acceleration sampled value is recorded, even
It is continuous to record multiple minimum acceleration sampled values.Similarly, in order to ensure wheel rotation angle identification accuracy, to acceleration into
The sample frequency of row sampling is at least twice of vehicle wheel rotation frequency.
S35. the difference of the minimum acceleration sampled value of adjacent periods is calculated.
S36. handing value is carried out to preset function using difference and determines acceleration and rotation of the tyre pressure sensor in wheel
The correspondence of gyration.Specifically, reference can be made to the embodiment 2 of description in to(for) step S26.
S37. obtain when the acceleration of tyre pressure sensor is a certain particular value that corresponding tire pressure is passed in real time according to correspondence
Rotation angle of the sensor in wheel.Specifically, it may refer to the description for step S13 in embodiment 1.
S31 to S37 obtains the minimum acceleration of tyre pressure sensor at least two rotation period of wheel through the above steps
Sampled value；The acceleration and tire of tyre pressure sensor are determined using the minimum acceleration sampled value of tyre pressure sensor based on preset function
The correspondence of rotation angle of the pressure sensor in wheel；And the acceleration that tyre pressure sensor is obtained according to correspondence is certain
Rotation angle of the corresponding tyre pressure sensor in wheel in real time when one particular value.Thus, it is possible to determine tyre pressure sensor in vehicle
Rotation angle in wheel provides reliable method for rotation angle of the selection tyre pressure sensor in wheel in turn.
Embodiment 4
Present embodiment discloses a kind of tire pressure data transmission method for uplink, this method is determining in real time tyre pressure sensor in wheel
In rotation angle after, when rotation angle of the tyre pressure sensor in wheel be predetermined value when, utilize the angle send tire pressure number
According to.As shown in figure 5, this method may include steps of：
S41. the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel is obtained.Specifically, may be used
Referring to the description for step S11 in embodiment 1.
S42. the acceleration of tyre pressure sensor is determined using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of degree and rotation angle of the tyre pressure sensor in wheel.Specifically, reference can be made to for step S12 in embodiment 1
Description.
S43. obtain when the acceleration of tyre pressure sensor is a certain particular value that corresponding tire pressure is passed in real time according to correspondence
Rotation angle of the sensor in wheel.Specifically, reference can be made to the embodiment 1 of description in to(for) step S13.
S44. judge rotation angle of the current tyre pressure sensor in wheel whether predetermined value.When tyre pressure sensor is in wheel
In rotation angle when not being predetermined value, return to step S41 when rotation angle of the tyre pressure sensor in wheel is predetermined value,
Enter step S45.In the particular embodiment, tire can be passed through by obtaining the acceleration sampled value of tyre pressure sensor in real time
The acceleration of pressure sensor obtains current tire pressure with the correspondence of rotation angle of the tyre pressure sensor in wheel and senses in real time
Rotation angle of the device in wheel.Alleged predetermined value is the best transmission angle of tire pressure data, in the angle transmission data, by
The interference of the factors such as wheel hub, the domain arrived is minimum.
Since automobile is during traveling, prodigious change will not generally occur in a relatively short period of time for speed and acceleration
Change, it, can be according between acceleration sampled value and adjacent periods after getting the acceleration sampled value at least two periods
Difference obtains the acceleration condition of current vehicle, can occur uniform rotation in wheel rotary course, and acceleration rotates and adds
Speed rotates, and the acceleration of tyre pressure sensor also can be at the uniform velocity, accelerate and deceleration regime, can be with to reduce the data volume calculated
According to the state of tyre pressure sensor and the difference that is calculated to the acceleration condition of a period of time after last sampling instant into
Row prediction, wheel at the uniform velocity when corresponds to accelerating curve variation tendency can with as shown in fig. 6, accelerate rotation when correspond to accelerating curve
Variation tendency can with as shown in fig. 7, when wheel underdrive correspond to accelerating curve variation tendency can be with as shown in figure 8, Fig. 6-
Fig. 8 dotted portions are acceleration prediction curve.The acceleration in several periods after last sampling instant and rotation angle
Correspondence can be approximately considered constant, such as four periods after last sampling instant, five periods etc..It can be according to this
Correspondence obtains rotation angle in real time.
S45. tire pressure data are sent to receiving terminal.
Acceleration by obtaining tyre pressure sensor at least two rotation period of wheel in step S41 to step S45 is adopted
Sample value extreme value；Based on preset function using the acceleration sampled value extreme value of tyre pressure sensor determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel；And the acceleration that tyre pressure sensor is obtained according to correspondence is
Rotation angle of the corresponding tyre pressure sensor in wheel in real time when a certain particular value, when rotation of the tyre pressure sensor in wheel
When angle is predetermined value, tire pressure data are sent to receiving terminal.And then tyre pressure sensor can be made to select suitable angle into line number
According to transmission, it is further ensured that traffic safety.
Embodiment 5
Present embodiment discloses a kind of devices of rotation angle of determining tyre pressure sensor in wheel, as shown in figure 9, should
Device includes：First acquisition module 101, the first determining module 102 and first angle obtain module 103 wherein：
First acquisition module 101 is used to obtain the acceleration sampled value of tyre pressure sensor at least two rotation period of wheel
Extreme value；First determining module 102 is used to determine tire pressure using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of sensor；First angle obtains module 103 and uses
In obtained according to correspondence tyre pressure sensor acceleration be a certain particular value when in real time corresponding tyre pressure sensor in wheel
In rotation angle.
In a preferred embodiment, the first determining module 102 includes：First computational submodule, for calculating adjacent periods
Acceleration sampled value extreme value difference；First determination sub-module, it is true for carrying out handing value to preset function using difference
Determine the correspondence of acceleration and wheel rotation angle.
In a preferred embodiment, the first computational submodule, including：Computing unit, for calculating multiple adjacent periods
Difference between acceleration sampled value extreme value；Determination unit, for using the average value for the multiple differences being calculated as adjacent
The difference of the acceleration sampled value extreme value in period.
In preferred embodiment, the acceleration sampled value extreme value of tyre pressure sensor is peak acceleration sampled value, first
Acquisition module 101, including：First acquisition submodule, for obtaining multiple tyre pressure sensors at least two rotation period of wheel
Acceleration sampled value；First choice submodule, it is suitable in the acceleration sampled value of multiple tyre pressure sensors in same period
Three continuous acceleration sampled values of secondary selection；Whether the first judging submodule, the acceleration sampled value for judging intermediate are same
When be more than preceding acceleration sampled value and posterior acceleration sampled value；Second determination sub-module, if added for intermediate
Speed sampling value is simultaneously greater than preceding acceleration sampled value and posterior acceleration sampled value, then samples intermediate acceleration
The peak acceleration sampled value being worth in the period as where.
In preferred embodiment, acceleration sampled value extreme value is the first acquisition module of minimum acceleration sampled value 101, packet
It includes：Second acquisition submodule, the acceleration sampled value for obtaining multiple tyre pressure sensors at least two rotation period of wheel；
Second selects submodule, and three companies are sequentially selected in the acceleration sampled value for multiple tyre pressure sensors in same period
Continuous acceleration sampled value；Second judgment submodule, for judging it is preceding whether intermediate acceleration sampled value is less than simultaneously
Acceleration sampled value and posterior acceleration sampled value；Third determination sub-module, if the acceleration sampled value for intermediate is same
When be less than preceding acceleration sampled value and posterior acceleration sampled value, then it is all where being used as intermediate acceleration sampled value
Minimum acceleration sampled value in phase.
In a preferred embodiment, first angle obtains module 103, including：Second computational submodule, for according to tire pressure
The particular value of the acceleration of sensor, be calculated using correspondence the acceleration of tyre pressure sensor particular value it is corresponding should
Rotation angle of two tyre pressure sensors in wheel in period；Trend obtains submodule, for the particular value according to acceleration
The variation tendency of current acceleration is obtained with subsequent time acceleration value；Angle obtains submodule, for true according to variation tendency
The particular value for determining acceleration corresponds to rotation angle.
Embodiment 6
Present embodiment discloses a kind of tire pressure data sending devices, and as shown in Figure 10, which includes：
Second acquisition module 201, the second determining module 202, second angle obtain module 203 and sending module 204,
In：
Second acquisition module 201 is used to obtain the acceleration sampled value of tyre pressure sensor at least two rotation period of wheel
Extreme value；Second determining module 202 is used to determine tire pressure using the acceleration sampled value extreme value of tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of sensor；Second angle obtains module 203 and uses
In obtained according to correspondence tyre pressure sensor acceleration be a certain particular value when in real time corresponding tyre pressure sensor in wheel
In rotation angle；Sending module 204 is used for when rotation angle of the tyre pressure sensor in wheel is predetermined value, to receiving terminal
Send tire pressure data.
Embodiment 7
Present embodiment discloses a kind of systems of rotation angle of determining tyre pressure sensor in wheel, as shown in figure 11,
The system includes：Tyre pressure sensor 1000, signal receiving device 2000 and processor 3000, wherein：
Tyre pressure sensor 1000 is sent for acquiring and measuring tyre pressure sensor acceleration for characterizing tyre pressure sensor
Acceleration data-signal.It, can be according to the rotation angle accuracy of identification pair of specific requirement when selecting tyre pressure sensor 1000
Tyre pressure sensor 1000 is chosen, and acceleration signal is converted to electricity by tyre pressure sensor 1000 after collecting acceleration signal
Signal, the electric signal can be the data-signals that digital quantity signal or analog signals etc. can be sent by radio communication.
Signal receiving device 2000, the data-signal for receiving the acceleration for characterizing tyre pressure sensor.Signal connects
The receives frequency of receiving apparatus 2000 is identical as the signal transmission frequency of tyre pressure sensor 1000, avoids interfering with each other between signal.
Processor 3000 carries out information exchange with signal receiving device 2000, may include arbitrary in above-described embodiment 6
One or more devices.It can complete the method in above-described embodiment 1, embodiment 2, embodiment 3 and embodiment 4.
The acceleration that automotive wheel is acquired and measured by tyre pressure sensor, sends the acceleration for characterizing tyre pressure sensor
The data-signal of degree, and then signal receiving device receives the data-signal of the acceleration for characterizing tyre pressure sensor, processor
It connect row information interaction of going forward side by side with signal receiving device, handles the data-signal of the acceleration for characterizing tyre pressure sensor, holds
The method that row determines the method for rotation angle of the tyre pressure sensor in wheel and sends tire pressure data, to realize determining tire
Rotation angle of the pressure sensing in wheel, makes tyre pressure sensor that suitable angle be selected to carry out data transmission.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (15)
1. a kind of method of rotation angle of determining tyre pressure sensor in wheel, which is characterized in that include the following steps：
Obtain the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel；
Based on preset function using the acceleration sampled value extreme value of the tyre pressure sensor determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel；
Corresponding tyre pressure sensor in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to the correspondence
Rotation angle in wheel；
The acceleration for determining tyre pressure sensor using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function
The correspondence for spending rotation angle with tyre pressure sensor in wheel includes：
Based on preset function using the difference of the acceleration sampled value extreme value of adjacent periods determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel.
2. the method for rotation angle of the determining tyre pressure sensor according to claim 1 in wheel, which is characterized in that institute
State the acceleration and tire for determining tyre pressure sensor using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function
The correspondence of rotation angle of the pressure sensor in wheel, including：
Calculate the difference of the acceleration sampled value extreme value of adjacent periods；
Carrying out handing value to the preset function using the difference determines the acceleration with tyre pressure sensor in wheel
Rotation angle correspondence.
3. the method for rotation angle of the determining tyre pressure sensor according to claim 2 in wheel, which is characterized in that institute
The difference for the acceleration sampled value extreme value for calculating adjacent periods is stated, including：
Calculate the difference between the acceleration sampled value extreme value of multiple adjacent periods；
Using the average value for the multiple differences being calculated as the acceleration sampled value extreme value of the tyre pressure sensor of adjacent periods
Difference.
4. the method for rotation angle of the determining tyre pressure sensor according to claim 1 in wheel, which is characterized in that institute
The acceleration sampled value extreme value for stating tyre pressure sensor is peak acceleration sampled value, at least two rotation period of acquisition wheel
The acceleration sampled value extreme value of interior tyre pressure sensor, including：
Obtain the acceleration sampled value of multiple tyre pressure sensors at least two rotation period of the wheel；
Three continuous acceleration are sequentially selected in the acceleration sampled value of the multiple tyre pressure sensor in same period
Sampled value；
Judge whether intermediate acceleration sampled value is simultaneously greater than preceding acceleration sampled value and posterior acceleration sampled value；
If the acceleration sampled value of the centre is simultaneously greater than preceding acceleration sampled value and posterior acceleration sampled value,
The then peak acceleration sampled value using the acceleration sampled value of the centre in the period as where.
5. the method for rotation angle of the determining tyre pressure sensor according to claim 1 in wheel, which is characterized in that institute
It is minimum acceleration sampled value to state tyre pressure sensor acceleration sampled value extreme value, at least two periods for obtaining vehicle wheel rotation
Tyre pressure sensor acceleration sampled value extreme value, including：
Obtain the acceleration sampled value of multiple tyre pressure sensors at least two rotation period of the wheel；
Three continuous acceleration samplings are sequentially selected in the acceleration sampled value of multiple tyre pressure sensors in same period
Value；
Judge intermediate acceleration sampled value whether simultaneously less than preceding acceleration sampled value and posterior acceleration sampled value；
If the acceleration sampled value of the centre is less than preceding acceleration sampled value and posterior acceleration sampled value simultaneously,
The then minimum acceleration sampled value using the acceleration sampled value of the centre in the period as where.
6. the method for rotation angle of the determining tyre pressure sensor according to any one of claims 1-5 in wheel,
It is characterized in that, corresponding tire in real time when the acceleration that tyre pressure sensor is obtained according to the correspondence is a certain particular value
Rotation angle of the pressure sensor in wheel, including：
According to the particular value of the acceleration of the tyre pressure sensor, adding for the tyre pressure sensor is obtained using the correspondence
Rotation angle of two tyre pressure sensors in wheel in particular value corresponding period of speed；
The variation tendency of current acceleration is obtained according to the particular value of the acceleration and adjacent moment acceleration value；
Determine that the particular value of acceleration corresponds to rotation angle of the tyre pressure sensor in wheel according to the variation tendency.
7. a kind of tire pressure data transmission method for uplink, which is characterized in that include the following steps：
Obtain the acceleration sampled value extreme value of tyre pressure sensor at least two rotation period of wheel；
Based on preset function using the acceleration sampled value extreme value of the tyre pressure sensor determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel；
Corresponding tyre pressure sensor in real time when the acceleration of tyre pressure sensor is a certain particular value is obtained according to the correspondence
Rotation angle in wheel；
When rotation angle of the tyre pressure sensor in wheel is predetermined value, tire pressure data are sent to receiving terminal；
The acceleration for determining tyre pressure sensor using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function
The correspondence for spending rotation angle with tyre pressure sensor in wheel includes：
Based on preset function using the difference of the acceleration sampled value extreme value of adjacent periods determine the acceleration of tyre pressure sensor with
The correspondence of rotation angle of the tyre pressure sensor in wheel.
8. a kind of device of rotation angle of determining tyre pressure sensor in wheel, which is characterized in that including：
First acquisition module, the acceleration sampled value extreme value for obtaining tyre pressure sensor at least two rotation period of wheel；
First determining module, for determining tire pressure using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of sensor；
First angle obtains module, when the acceleration for obtaining tyre pressure sensor according to the correspondence is a certain particular value
Real-time rotation angle of the corresponding tyre pressure sensor in wheel；
First determining module is additionally operable to true using the difference of the acceleration sampled value extreme value of adjacent periods based on preset function
Determine the correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of tyre pressure sensor.
9. the device of rotation angle of the determining tyre pressure sensor according to claim 8 in wheel, which is characterized in that institute
The first determining module is stated, including：
First computational submodule, the difference of the acceleration sampled value extreme value for calculating adjacent periods；
First determination sub-module, for using the difference to the preset function carry out handing value determine the acceleration with
The correspondence of rotation angle of the tyre pressure sensor in wheel.
10. the device of rotation angle of the determining tyre pressure sensor according to claim 9 in wheel, which is characterized in that
First computational submodule, including：
Computing unit, the difference between the acceleration sampled value extreme value for calculating multiple adjacent periods；
Determination unit, for using the average value for the multiple differences being calculated as the acceleration of the tyre pressure sensor of adjacent periods
The difference of sampled value extreme value.
11. the device of rotation angle of the determining tyre pressure sensor according to claim 8 in wheel, which is characterized in that
The acceleration sampled value extreme value of the tyre pressure sensor is peak acceleration sampled value, first acquisition module, including：
First acquisition submodule, the acceleration for obtaining multiple tyre pressure sensors at least two rotation period of the wheel are adopted
Sample value；
First choice submodule sequentially selects three in the acceleration sampled value of the multiple tyre pressure sensor in same period
A continuous acceleration sampled value；
First judging submodule, for judge intermediate acceleration sampled value whether be simultaneously greater than preceding acceleration sampled value and
Posterior acceleration sampled value；
Second determination sub-module, if the acceleration sampled value for the centre be simultaneously greater than preceding acceleration sampled value and
Posterior acceleration sampled value then samples peak acceleration of the acceleration sampled value of the centre in the period as where
Value.
12. the device of rotation angle of the determining tyre pressure sensor according to claim 8 in wheel, which is characterized in that
The acceleration sampled value extreme value of the tyre pressure sensor is minimum acceleration sampled value, first acquisition module, including：
Second acquisition submodule, the acceleration for obtaining multiple tyre pressure sensors at least two rotation period of the wheel are adopted
Sample value；
Second selects submodule, and three are sequentially selected in the acceleration sampled value for multiple tyre pressure sensors in same period
A continuous acceleration sampled value；
Second judgment submodule, for judge intermediate acceleration sampled value whether simultaneously less than preceding acceleration sampled value with
Posterior acceleration sampled value；
Third determination sub-module, if acceleration sampled value for the centre simultaneously less than preceding acceleration sampled value and
Posterior acceleration sampled value then samples minimum acceleration of the acceleration sampled value of the centre in the period as where
Value.
13. the device of rotation angle of the determination tyre pressure sensor according to claim 8-12 any one in wheel,
It is characterized in that, the first angle obtains module, including：
Second computational submodule is used for the particular value of the acceleration according to tyre pressure sensor, is calculated using the correspondence
To rotation of two tyre pressure sensors in particular value corresponding period of the acceleration of the tyre pressure sensor in wheel
Angle；
Trend obtain submodule, for according to the acceleration particular value and subsequent time acceleration value obtain current acceleration
Variation tendency；
Angle obtains submodule, for determining that the particular value of acceleration corresponds to rotation angle according to the variation tendency.
14. a kind of tire pressure data sending device, which is characterized in that including：
Second acquisition module, the acceleration sampled value extreme value for obtaining tyre pressure sensor at least two rotation period of wheel；
Second determining module, for determining tire pressure using the acceleration sampled value extreme value of the tyre pressure sensor based on preset function
The correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of sensor；
Second angle obtains module, when the acceleration for obtaining tyre pressure sensor according to the correspondence is a certain particular value
Real-time rotation angle of the corresponding tyre pressure sensor in wheel；
Sending module, for when rotation angle of the tyre pressure sensor in wheel is predetermined value, tire to be sent to receiving terminal
Press data；
Second determining module is additionally operable to true using the difference of the acceleration sampled value extreme value of adjacent periods based on preset function
Determine the correspondence of the acceleration and rotation angle of the tyre pressure sensor in wheel of tyre pressure sensor.
15. a kind of system of rotation angle of determining tyre pressure sensor in wheel, including：
Tyre pressure sensor, the acceleration for acquiring and measuring tyre pressure sensor, and send for characterizing adding for tyre pressure sensor
The data-signal of speed；
Signal receiving device, for receiving the data-signal for characterizing the acceleration of tyre pressure sensor；
Processor is connect with the signal receiving device, determines that tire pressure is passed as described in any one of claim 1-6 for executing
Tire pressure data transmission method for uplink of the method or execution of rotation angle of the sensor in wheel as described in claim 7.
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| JP5585596B2 (en) * | 2012-01-18 | 2014-09-10 | 株式会社デンソー | Wheel position detecting device and tire air pressure detecting device having the same |
| JP2015013635A (en) * | 2012-12-27 | 2015-01-22 | 株式会社東海理化電機製作所 | Tire position determination system |
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