CN101835638B - Method and apparatus for identification of wheels of a vehicle and a vehicle comprising same - Google Patents
Method and apparatus for identification of wheels of a vehicle and a vehicle comprising same Download PDFInfo
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- CN101835638B CN101835638B CN2007801008371A CN200780100837A CN101835638B CN 101835638 B CN101835638 B CN 101835638B CN 2007801008371 A CN2007801008371 A CN 2007801008371A CN 200780100837 A CN200780100837 A CN 200780100837A CN 101835638 B CN101835638 B CN 101835638B
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- accelerometer
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- transverse acceleration
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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
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0415—Automatically identifying wheel mounted units, e.g. after replacement or exchange of wheels
- B60C23/0416—Automatically identifying wheel mounted units, e.g. after replacement or exchange of wheels allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right
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Abstract
A method of determining the location information of a plurality of wheels mounted on a vehicle by obtaining a relationship between the lateral location of a wheel and the polarity of a transverse acceleration transmitted by an accelerometer of a wheel in response to a lateral turn of said vehicle in a direction of a lateral side of the vehicle and determining the lateral location of a wheel with reference to the polarity of the transverse acceleration signal transmitted by the accelerometer of the wheel upon the vehicle undergoing a lateral turn.
Description
Technical field
The present invention relates to be used to discern the method and apparatus of wheel of vehicle, relate to the vehicle that comprises this method and apparatus simultaneously.
Background of invention
The identification of wheel of vehicle can provide the useful information of operation or condition of service for traveling vehicle on the road.For example, one just on the road tire pressure monitoring system of traveling vehicle (TPMS) need the wheel means of identification to discern the identity of each wheel so that the tire pressure of each independent wheel of vehicle can be provided.
The wheel means of identification is known.For example, US 5,600, and 301 have disclosed a kind of wheel means of identification, and wherein each wheel has the emitter of a unique code.A central receiver on the vehicle just is set up the code of each emitter that can recognize this vehicle during fabrication.But, a special IC (ASIC) coder is arranged on this designing requirement emitter, it is programmed to provide independent identity to wheel during fabrication.Need ASIC to move the use that this design has greatly limited this device, for example, the wheel between the wheel manufacturers is not interchangeable.
US 6,204, and 758 have disclosed a kind of tire monitors operating that is used for the remote tire monitored control system, and it comprises an accelerometer, are used to survey the acceleration/accel with each wheel bonded assembly tire monitors operating.But this design demand is used a radial accelerometer, a tangential accelerometer and a YAW accelerometer, can confirm the location information of each wheel.
US 7,023, and 334 have disclosed a kind of method of in power actuated vehicle, distributing the tire pressure measurement mechanism.This method comprises utilizing ABS to confirm when vehicle turns, left-handed turning or right-hand turning.Then, measure the wheel revolutions counting of each tire, and send to a central analysis unit with cognizance code.By the crooked data that ABS confirms, check the wheel revolutions counting.Then, it is vehicle that side in curved outside that higher wheel revolutions counting is specified, and two lower wheel revolutionss are counted the opposite side that is assigned to vehicle.This system needs an ABS unit and cognizance code.
US 7,010, and 968 have described a kind of tyre monitoring system that is used in combination with the vehicle remote tyre monitoring system, and it comprises a dual axis accelerometer and a control circuit.Control circuit is confirmed the location information of a tire monitors operating on the vehicle for responding an ARC Acceleration Signal from dual axis accelerometer, like a left side/right position.Control unit is also discerned extra location information through the signal strength of detectable signal emission, as one launch time monitor preceding/position, back.
Existing wheel means of identification or design can not be entirely satisfactory.Therefore, expectation can provide a kind of wheel means of identification, and it can solve the shortcoming of existing wheel means of identification, or can provide a kind of alternative wheel means of identification to supply the public to select at least.
Summary of the invention
According to the present invention; A kind of a plurality of methods that are installed in the location information of the wheel on the vehicle of confirming are provided; Each said wheel has a plane of rotation; Said vehicle comprises a car body, and it has first side and second side, and this method comprises step: an accelerometer is installed on each wheel in said a plurality of wheels of said vehicle; Wherein transverse acceleration signal of each said accelerometer emission with corresponding one perpendicular to the acceleration/accel on the direction on said wheel revolutions plane; When in case said vehicle said first side of court or said second side are turned with the change moving line, be installed in the polarity of the said transverse acceleration signal of the said accelerometer emission on said vehicle one side, opposite with the polarity of another the said transverse acceleration signal that is installed in another the said accelerometer emission on the said vehicle opposite side; Turn towards a said side for said vehicle, obtain the relation between the polarity of said transverse acceleration signal of said accelerometer emission of lateral position and said wheel of said wheel; In case when vehicle carries out said turning,, confirm the lateral position of said wheel with reference to the polarity of the said acceleration signal of the said accelerometer emission of said wheel.Through an accelerometer is installed, the transverse acceleration of its detecting wheel, and export a transverse acceleration signal (its polarity is relevant with turn direction and lateral position), the lateral position of wheel can be confirmed easily.
On the other hand; The invention describes a kind of a plurality of methods that are installed in the location information of the wheel on the vehicle of confirming; Said vehicle comprises a car body, and it has first side and second side, and this method comprises step: in case said vehicle is turned when changing moving line towards said first side or said second side; Obtain the lateral acceleration information of each wheel in said a plurality of wheel; The direction of said transverse acceleration is vertical with the plane of rotation of said wheel, and said lateral acceleration information comprises the direction information of the said relatively carbody of said transverse acceleration, and the direction that comprises said transverse acceleration be towards or away from the information of said carbody; With reference to said turn direction and said direction information, confirm that said wheel is on first side of said vehicle or on second side.
According to a preferred embodiment of the present invention; The wheel identification configuration of a vehicle is provided; This vehicle comprises a plurality of wheels that are installed on said carbody first side and second side; Said configuration comprises a treater and a plurality of wheel means of identification, and wherein each wheel means of identification is respectively installed on said a plurality of wheel; Wherein each said wheel means of identification comprises an accelerometer; It produces a transverse acceleration signal; With corresponding one perpendicular to the acceleration/accel on the direction on said wheel revolutions plane, said transverse acceleration signal comprise said transverse acceleration be towards or away from the direction information of said carbody; With a wireless signal transmitter, be used to launch said acceleration signal to said treater; Wherein said treater is confirmed the lateral position of said wheel from the polarity of said direction information.
According to another aspect of the present invention; The wheel identification configuration of a vehicle is provided; This vehicle comprises a plurality of wheels that are installed on said carbody first side and second side; Said configuration comprises a treater and a plurality of wheel means of identification, and each wheel means of identification is respectively installed on said a plurality of wheel; Wherein each said wheel means of identification comprises an accelerometer; It produces a transverse acceleration signal; With corresponding one perpendicular to the acceleration/accel on the direction on said wheel revolutions plane; Said transverse acceleration signal comprises magnitude information, and it shows the magnitude of the transverse acceleration of the said relatively carbody of said wheel; With a wireless signal transmitter, be used to launch said acceleration signal to said treater, wherein said treater confirms from said magnitude information whether wheel is track adjusting wheel.
According to another aspect of the present invention, a kind of method of discerning the vehicle guidance wheel is provided, this vehicle comprises a plurality of wheels; Each said wheel has a plane of rotation; And said vehicle comprises a car body, and it has first side and second side, and this method comprises step: an accelerometer is installed on each wheel in said a plurality of wheels of said vehicle; Wherein each said accelerometer is launched a transverse acceleration signal; Said transverse acceleration signal comprises magnitude information perpendicular to the acceleration/accel on the direction on said wheel revolutions plane with one of correspondence, and it shows the magnitude of the transverse acceleration of the said relatively carbody of said wheel; And the said magnitude information of reference confirms whether wheel is track adjusting wheel.
Description of drawings
Below will describe exemplary embodiments of the present invention in detail through example and with reference to accompanying drawing, wherein:
Fig. 1 is the structural representation of a vehicle, and this vehicle comprises a plurality of wheels, and each wheel has a wheel means of identification and forms part TPMS;
Fig. 2 is a module diagram that is installed to the tire pressure monitoring apparatus unit of wheel rim.
Fig. 3 is the module diagram of a central controller unit, and the central controller unit is installed on the car body of a vehicle, and Fig. 1 wheel means of identification is installed on the car body;
Fig. 4 A and 4B describe a left side wheel and a right side wheels respectively, on their each comfortable lateral wheels a tire pressure monitoring apparatus (TPMD) are installed;
Fig. 5 describes one and can be used for typical single axis accelerometer of the present invention; With
Fig. 6 shows that first and second wheels of oriented vehicle are to change the moving line of Fig. 1 vehicle.
Preferred embodiment details
Fig. 1 describes a vehicle 100, comprises a car body 120 and a plurality of driving running wheels 132,134,136,138 that are installed on car body first side 122 and second side 124.Wheel rotatably is installed on the car body, and each wheel all has a plane of rotation, and it is usually perpendicular to the walking road surface of wheel tyre.Particularly, a plurality of wheels comprise first wheel 132 and second wheel 134, and it is installed in the front left side and the forward right side of car body respectively, and the 3rd wheel 136 and the 4th wheel 138, and it is installed in the left rear side and the right lateral side of vehicle frame respectively.First wheel and second wheel are installed on the front axle, move to change its motion track route through the control of the bearing circle on the steering column for vehicle.Through with first wheel and second wheel steering first or second side, can change moving line, i.e. difference left-handed turning and right-hand turning in this example.The shared common rotating shaft of the 3rd wheel and the 4th wheel, their plane of rotation always is parallel to the longitudinal axis of vehicle.Each wheel comprises a wheel rim 142, for example alloy wheel rim, an and air-inflation tyre 144, and well-known, it can be inflated to a tire pressure suitable or appointment.
For the health information of each wheel of vehicle can be provided, a tire pressure monitoring apparatus (TPMD) 200 is installed all on each wheel.Each TMPD is installed in a side of wheel, more specifically, and near felly near valve rod (valve stem) 146.The metallo-valve rod serves as an antenna simultaneously and carries out radio communication between the TPMD on the wheel to be easily installed in the central process unit on the vehicle and to be installed in.In order to collect and handle the data of the TPMD emission on each wheel, central controller unit (CCU) 300 is installed on the car body of vehicle.CCU 300 also comprises the side direction turning of an optional accelerometer with detection vehicle, and this will describe following.
As shown in Figure 2, each TPMD comprises a tyre pressure sensor 220 and a wheel means of identification, and it comprises an accelerometer 240 that is connected to microcontroller 260.Microcontroller is connected to a low frequency (LF) wake-up configure, and it provides wake-up signal to microcontroller, and it still is a wireless power source.Less radio-frequency (RF) emitter 280 is connected to microcontroller so that carry out radio communication with CCU.The data that TPMD produces will be transferred to CCU and handle.Tyre pressure sensor can be the unit of a traditional or standard, and such as piezoelectric transducer, it can produce the pressure changing information or the data of electric signal form, to show the transient pressure in the air-inflation tyre.Accelerometer can detecting wheel (accelerometer promptly is installed on this wheel) lateral acceleration, promptly one accelerometer can be a single axis accelerometer perpendicular to the acceleration/accel on the direction on wheel revolutions plane, its operating shaft is perpendicular to the plane of rotation of wheel.
This configuration of CCU and TPMD forms a vehicle tyre pressure monitored control system (TPMS) together.As shown in Figure 3; The central controller 300 of TPMS comprises a less radio-frequency (RF) receiver 320, is used to receive the data of the RF emitter emission of each TPMD, and a micro controller unit 340 is connected to the RF receiver; An and visual display unit (VDU) 360; It receives the information from micro controller unit, and provides visual information to the user, i.e. the driver.An optional accelerometer 380 is installed on car body, and it is used for the variation of detection vehicle moving line, and its output port is connected to microcontroller.Accelerometer 380 can be a single axis accelerometer, and it surveys one perpendicular to the acceleration/accel on the carbody y direction.Owing to turn mainly is to turn about a center that rotates circle, and accelerometer mainly is used for surveying the centrifugal acceleration of vehicle when the moving line of vehicle changes towards a left side or towards the right side.For automatic reference is provided, the accelerometer of CCU be used for detection vehicle one perpendicular to the acceleration/accel on the linear movement direction, it equals at one perpendicular to the acceleration/accel on the third and fourth wheel revolutions in-plane.For simplicity, in accompanying drawing, this direction is identified as directions X.
A typical accelerometer that is applicable to Fig. 1 to 3 of the present invention is as shown in Figure 4, is a MEMS (MEMS) accelerometer 240.MEMS comprises a movable member 242, and it is a pair of fixedly between the finger, i.e. the first fixing finger 244 and second fixedly between the finger 246.Movable member conducts electricity, and in the time of on being installed to wheel, it can move along its operating shaft, and the X axle of positive and negative sign is promptly arranged among Fig. 4.For the acceleration/accel on energy measurement or the detection X axle, promptly be perpendicular to the acceleration/accel on the direction on wheel revolutions plane, make the plane of rotation of the operating shaft A-A ' of accelerometer perpendicular to wheel.Can infer from accompanying drawing, when movable member because the acceleration/accel on the directions X and when on directions X, moving, each fixedly the spacing distance between finger and the movable member will change.Particularly, the electric capacity (C between first finger and the movable member
1), the electric capacity (C between second finger and the movable member
2) also will change.For example, when movable member moves near first finger, since the cross travel of movable member, capacitor C
1To increase, and capacitor C
2To reduce, because movable member is away from second finger.
Through the monitoring capacitor C
1And C
2Variation, can confirm the direction of acceleration, promptly acceleration direction be towards or away from first or second finger.Can use capacitance difference (Δ C=C
1-C
2) producing lateral acceleration information, it comprises and shows that transverse acceleration is towards second finger or towards the direction information (orientation information) of first finger, this will describe following.
In Fig. 4 A and 4B, shown that a typical case of Fig. 2 tire pressure monitoring apparatus (TPMD) installs, TPMD comprises a wheel means of identification.Under this installed, TPMD was installed on the lateral wheel near valve rod, and the operating shaft A-A ' of accelerometer (MEMS) is perpendicular to the plane of rotation of wheel, thereby can monitor the acceleration/accel perpendicular to the wheel revolutions in-plane.More particularly, each wheel all is equipped with an accelerometer, and concerning a plurality of wheels, the dimensional orientation of relative valve rod of accelerometer or felly all is identical with relation.All make when particularly, each accelerometer being installed win or second finger near valve rod or felly.This configuration has been arranged, and capacitance variations between first and second fingers or relative electric capacity will provide an indication: on the X axle that detects acceleration/accel be towards or away from stem side or lateral wheel (accelerometer is installed on this wheel).Thereby the information of providing: the X axle acceleration be towards or away from carbody.The accelerometer finger and the outside are to adopt constant, non-symmetrical spatial relationship between the lateral wheel, so wheel can exchange, because the lateral position of wheel can be easy to be identified, this will describe following.
Suppose that the accelerometer of present Fig. 5 is installed in the left side of Fig. 1 vehicle, shown in Fig. 4 A, second finger is near valve rod; First finger is away from valve rod, and its operating shaft is perpendicular to the plane of rotation of wheel, shown in arrow; The centnifugal force that turns to the right side to produce owing to vehicle side will drive movable member and shift to the left side; Promptly move, thereby increase the electric capacity of second finger, reduce the electric capacity of first finger simultaneously towards second finger.When supposing that movable member is on midway location, C
1And C
2Equate that Δ C will bear so now.
On the other hand, when the vehicle side left, the centnifugal force of generation will drive movable member towards first finger, thereby improve capacitor C
1, and reduce capacitor C
2In this example, Δ C=C
1-C
2Be positive.Therefore, poor through the electric capacity output of monitoring between first and second fingers, can confirm the side veer of vehicle.In addition, will be noted that the polarity of output electric signal is represented that by capacitance difference when at first side turns to first side direction to turn to second side direction then, polarity will change at vehicle.
When Fig. 5 accelerometer was installed on the right side of Fig. 1 vehicle, shown in Fig. 4 B, second finger was near valve rod; First finger is away from valve rod; And its operating shaft is perpendicular to the plane of rotation of wheel, shown in arrow, turns to the right side and the centnifugal force that produces will drive movable member towards the left side by vehicle side; I.e. first finger, thus capacitor C improved
1, and reduce capacitor C
2, the Δ C of generation is for just.On the other hand, when the vehicle side port, the centnifugal force of generation will drive movable member and shift to the right side, i.e. second finger, thus improve capacitor C
2, reduce capacitor C simultaneously
1, the Δ C of generation is for negative.Because the side of vehicle then first and second fingers that produce and the capacitance difference between the movable member depend on the side veer, and wheel to be mounted in aforesaid left side still be on the right side.Side direction of correspondence is turned, and through the mode of monitoring electric capacity output difference, can confirm that wheel is mounted on right side or the left side.
When vehicle changeed by following mode side, the polarity of the transverse acceleration signal (TAS) that produces with reference to accelerometer can be confirmed the lateral position of wheel.
For example; If accelerometer is installed on the left side wheel; And to be configured the polarity that makes towards the transverse acceleration signal (like Δ C) in left side be positive; It is a wheel that is installed on the left side that the wheel of a positive horizontal ARC Acceleration Signal (TAS) of emission will be identified, and the wheel of the negative TAS of emission will to be identified be a wheel that is installed on the vehicle right side.In this configuration, it is positive that accelerometer is configured the acceleration/accel that makes away from carbody, and bears towards the acceleration/accel of car body.
A remarkable characteristic of Fig. 5 accelerometer is: a side direction of corresponding vehicle is turned; The polarity of the difference electric signal that is produced by first and second wheels is opposite; This is because when accelerometer is installed in the opposition side of vehicle, and the acceleration/accel of accelerometer or operating shaft have been turned 180 degree.
Therefore, through measuring the capacitance difference (Δ C) between first and second fingers, with reference to more than the predetermined way listed, polarity or direction that microprocessor or the TPMU through CCU can confirm acceleration/accel, and the lateral position of definite wheel.
As an optional feature, the capacitance difference between finger, left side and finger, right side can also be used to provide the more accurate and sensitive information of relevant transverse acceleration magnitude.
Through settling an accelerometer on wheel one side, its operating shaft is by keeping a fixed spatial relationship with upper type and wheel or valve rod, when wheel from a sidesway of vehicle during to opposite side, the operating shaft of accelerometer will be by the accent turnback.Therefore, in case when rearranging wheel from a side to another opposition side, the polarity of the acceleration signal that is produced by accelerometer will be transferred turnback.Utilize this configuration, accelerometer with indicated lateral acceleration be towards or away from car body, irrelevant with the actual physics identity of wheel.
With reference to accompanying drawing, the operation of TMPS will be described at present.
When the wheel that above-mentioned TMPD is installed is installed on the vehicle, the centnifugal force (being equivalent to a transverse acceleration towards a side) that corresponding vehicle is produced when a side is turned will cause the movable member of accelerometer to shift to another opposition side.Particularly, as shown in Figure 6,, vehicle side (is equivalent to a transverse acceleration) when turning to the right side towards the vehicle right side, and the movable member of accelerometer will be shifted to the left side.A wheel on the left side of vehicle will cause movable member to move away from the car body longitudinal axis along operating shaft, and launch a negative Δ C to CCU.To a wheel on the vehicle right side, identical turning will cause movable member to move towards the car body longitudinal axis along operating shaft.
When the vehicle side port, the centnifugal force that produces turning will speed up the movable member of meter and shifts to the right side.A wheel on the vehicle left side causes movable member to move towards the car body longitudinal axis, and produces a positive Δ C.To a wheel on the vehicle right side, identical turning can cause movable member to move away from the car body longitudinal axis.
From the above, will be noted that through the direction of monitoring accelerometer transverse acceleration about the car body longitudinal axis, can confirm to be equipped with the lateral position of the wheel of a TPMD of the present invention, this will describe following.
For example, if in case vehicle when side direction of vehicle is turned, the direction of the transverse acceleration of wheel so just confirms that away from carbody this wheel is on this lateral position.This is equivalent to accelerometer movable member moving away from carbody.
Select in addition or as another, if in case vehicle when a side direction of vehicle is turned, the direction of the transverse acceleration of wheel is towards carbody, so just confirms that this wheel is on this lateral position.This is equivalent to movable member the moving away from carbody of accelerometer.
Select in addition or as another, if in case vehicle when an opposition side of vehicle is turned, the direction of the transverse acceleration of wheel so just confirms that away from the car body of vehicle this wheel is on this lateral position.This is equivalent to movable member the moving towards carbody of accelerometer.
Although might confirm the side veer of vehicle with reference to the turn direction of bearing circle on the pilot bar; But be installed in the extra or optional accelerometer (its operating shaft is perpendicular to the vehicle longitudinal axis) on the vehicle, will an optional feature from dynamic correction be provided for an autonomous system.
With reference to Fig. 1,3 and 5, the accelerometer of Fig. 5 is installed on the car body of vehicle, and its operating shaft is perpendicular to the vehicle longitudinal axis, and second finger is in the left side.Install after the accelerometer, can monitor one perpendicular to the acceleration/accel on the lateral of the vehicle longitudinal axis.Particularly, when vehicle is done right direction turning as shown in Figure 6, the accelerometer that is installed on the car body will detect a lateral acceleration towards the right side, this means that the movable member of accelerometer moves towards vehicle left side with towards second finger.Utilize this configuration, second fixedly finger electric capacity increase, or a negative Δ C will mean that vehicle side turns to the right side, a positive Δ C will mean left-hand rotation.
Perhaps, accelerometer can be installed on the contrary, and fixedly install with inversion mode the finger, and promptly first finger is installed in the left side of carbody, and second finger is installed in the right side of vehicle.Utilize this configuration, the first fixedly finger electric capacity increase, a positive Δ C will mean that vehicle side turns to the right side, and vice versa, and a negative Δ C will mean left-hand rotation.
Related through the directional characteristic of the single accelerometer on the above-mentioned directional characteristic of accelerometer on the vehicle and the wheel is set up, can confirm the lateral position of each wheel in a plurality of wheels.For example; If the accelerometer that is installed on the car body is that second finger is in vehicle left side; And the accelerometer on the wheel is that second finger is near valve rod outside the wheel, and vehicle turns left will cause the electric capacity of vehicle accelerometer first finger to increase (+Δ C), and the electric capacity of accelerometer first finger of left side wheel increases (+Δ C); But the electric capacity of accelerometer first finger of right side wheels reduces (Δ C), and this is because the transverse acceleration towards the left side.In this configuration, will mean that from a positive signal of wheel this wheel is in the left side, the wheel that produces a negative signal means that this wheel is on the right side.
Polarity through distributing vehicle is identical with the polarity of first or second wheel, and the treater in the CCU can be confirmed wheel easily and be mounted in which side.For example, if be installed in second with the 4th wheel on the polarity of accelerometer be set up identically with the polarity of vehicle accelerometer, the turning information of identical polar will mean that tire is on the right side of vehicle.Equally, will to indicate this wheel be first on vehicle left side or the 3rd wheel to the turning motion signal of opposite polarity.
Wheel means of identification in third and fourth wheel; Be similar to the wheel means of identification of first and second wheels; The polarity of the directions X acceleration signal that is produced by the 3rd wheel is identical with the polarity of first wheel, and the polarity of the 4th wheel is identical with the polarity of second wheel.
Perhaps; If the accelerometer on the carbody is that first finger is in vehicle left side; And outer first finger that is wheel of the accelerometer on the wheel is near valve rod; Vehicle turns left will cause the electric capacity of vehicle accelerometer second finger to increase (Δ C), and the electric capacity of accelerometer second finger of left side wheel increases (Δ C), but the electric capacity of accelerometer second finger of right side wheels reduces (+Δ C).
Owing to can confirm the direction relations of capacitance variations trend easily, through with reference to above-mentioned relation, the present invention's configuration can confirm easily that wheel is left side or the right side at vehicle.
The present invention also provides another optional feature structure, is used for discerning track adjusting wheel, or in the middle of a plurality of wheels, differentiates track adjusting wheel and non-track adjusting wheel.Track adjusting wheel in the present invention is meant the ground-engaging wheel of vehicle, and the relative carbody of its plane of rotation is movably, to change the moving line of vehicle.
In the embodiment of Fig. 1, first and second wheels can be directed to change the moving line of vehicle, are counted as track adjusting wheel.
Will be noted that when the relative carbody of plane of rotation of first and second wheels rotated an angle, the moving line of vehicle had just changed.In order from a plurality of wheels, to identify track adjusting wheel or to differentiate track adjusting wheel and non-track adjusting wheel, the magnitude of TAS capable of using.Will be noted that when first and second wheels were directed to, the relative car body of each wheel in first and second wheels had a transverse acceleration.
Because third and fourth wheel can not lead, between by the TAS that accelerometer produced of third and fourth wheel and the TAS that accelerometer produced, a constant or fixing relation is arranged by vehicle.Particularly, a constant relation is arranged between the magnitude of the TAS of third and fourth wheel magnitude and vehicle lateral acceleration.Because the transverse acceleration of first and second wheels and carbody are irrelevant,, can confirm the identity of third and fourth wheel through the difference of the acceleration/accel magnitude on the comparison directions X with respect to the acceleration/accel magnitude of vehicle accelerometer.For example, the relative magnitude of the transverse acceleration of first and second wheels and time correlation, and the relative magnitude of the transverse acceleration of third and fourth wheel and time are irrelevant.With respect to the lateral acceleration of vehicle, the magnitude of a variable transverse acceleration through identifying wheel can pick out and primary shaft bonded assembly track adjusting wheel, promptly first and second wheels and with second bonded assembly wheel, i.e. third and fourth wheel.Because the wheel that is installed in vehicle the same side has identical polarity, add variation from the polarity of directions X ARC Acceleration Signal with reference to the directions X acceleration/accel of vehicle, can confirm the identity of each wheel.
Therefore, the TAS magnitude of the wheel through more relative car body can identify track adjusting wheel.
In addition, through method that makes up above identification left side or right side wheels and the method for discerning track adjusting wheel, use single axis accelerometer can easily identify four wheels of vehicle.
Will recognize that, use a plurality of single axis accelerometer can embodiment of the present invention, allow long distance control system to confirm the identity of each wheel in the first, second, third and the 4th wheel of vehicle so that identifying information to be provided.In addition, the present invention can discern the identity of single wheel, no matter whether vehicle is to move forward or backward.
Although described the present invention, will be understood that these just are used for assisting to understand example of the present invention, rather than restrictive with reference to above-mentioned example or preferred embodiment.To those skilled in the art, significantly conversion or modification with the same to its improvement of doing, should be counted as equivalent of the present invention.
In addition, described the present invention, should be appreciated that,, no matter whether need make amendment through using the multiaxis accelerometer although consulted and used a single axis accelerometer, can embodiment of the present invention.
Claims (24)
1. confirm a plurality of methods that are installed in the location information of the wheel on the vehicle for one kind, each said wheel has a plane of rotation, and said vehicle comprises a car body, and it has first side and second side, and this method comprises step:
An accelerometer is installed on each wheel in the said a plurality of wheels of said vehicle; Wherein transverse acceleration signal of each said accelerometer emission with corresponding one perpendicular to the acceleration/accel on the direction on said wheel revolutions plane; In case said vehicle is turned when changing its moving line towards said first side or towards said second side; Be installed in the polarity of the said transverse acceleration signal of the said accelerometer emission on said first side of said vehicle, opposite with the polarity of another said transverse acceleration signal of another said accelerometer emission on said second side that is installed in said vehicle;
Obtain the relation between the polarity of said transverse acceleration signal of said accelerometer emission of said wheel lateral position and said wheel, with the said vehicle of correspondence towards said first side or towards the turning of said second side; With
In case when vehicle carries out said turning,, confirm the lateral position of said wheel with reference to the polarity of the said transverse acceleration signal of the said accelerometer emission of said wheel.
2. method according to claim 1, the polarity of the said transverse acceleration signal of wherein said accelerometer emission comprise said transverse acceleration be towards or away from the information of said carbody.
3. method according to claim 1; Wherein said method comprises step: if in a single day said vehicle is turned towards said first side; The polarity of the said transverse acceleration signal of said wheel shows acceleration/accel away from said car body, just confirms that said wheel is a wheel on said first side of said vehicle.
4. method according to claim 1; Wherein said method comprises step: if in a single day said vehicle is turned towards said first side; The polarity of the said transverse acceleration signal of said wheel shows acceleration/accel towards said car body, just confirms that said wheel is a wheel on said second side of said vehicle.
5. method according to claim 1; Wherein said method comprises step: if in a single day said vehicle is turned towards said second side; The polarity of the said transverse acceleration signal of said wheel shows acceleration/accel towards said car body, just confirms that said wheel is a wheel on said first side of said vehicle.
6. method according to claim 1; Wherein said method comprises step: if in a single day said vehicle is turned towards said second side; The polarity of the said transverse acceleration signal of said wheel shows acceleration/accel away from said car body, just confirms that said wheel is a wheel on said second side of said vehicle.
7. method according to claim 1; Also comprise step: with one with reference to accelerometer be installed on the said carbody with survey said vehicle one perpendicular to the lateral acceleration on the direction of the said vehicle longitudinal axis, saidly be configured to the reference that said turn inside diameter direction is provided with reference to accelerometer.
8. method according to claim 7, wherein said being configured to reference to accelerometer provides a reference: the said turn direction of said vehicle is towards said vehicle first side or towards second side.
9. method according to claim 8; Wherein said being configured to reference to accelerometer produces a lateral acceleration signal; Its polarity is relevant with the said turn direction of said vehicle; This method also comprises step: the polarity and the polarity of the said lateral acceleration signal of said vehicle of the said transverse acceleration signal of said wheel emission are set up related, with the lateral position of definite said wheel.
10. method according to claim 1, said a plurality of wheels of wherein said vehicle comprise a plurality of track adjusting wheels, this method also comprises step: through discerning the transverse acceleration of said wheel with respect to said carbody, discern said track adjusting wheel.
11. method according to claim 10; Wherein said transverse acceleration signal comprises the magnitude information of the said transverse acceleration of said wheel; When in case said vehicle changes its moving line; Magnitude according between the said transverse acceleration magnitude of the lateral acceleration magnitude of said vehicle and said wheel is poor, confirms the said transverse acceleration of said wheel with respect to said vehicle.
12. confirm a plurality of methods that are installed in the location information of the wheel on the vehicle for one kind, said vehicle comprises a car body, it has first side and second side, and this method comprises step:
In case said vehicle is turned when changing its moving line towards said first side or said second side; Obtain the lateral acceleration information of each wheel in said a plurality of wheel; The direction of said transverse acceleration is perpendicular to the plane of rotation of said wheel; Said lateral acceleration information comprises the direction information of said transverse acceleration with respect to said carbody, and the direction that comprises said transverse acceleration be towards or away from the information of said carbody; With
With reference to said turn direction and said direction information, confirm that said wheel is on first side of said vehicle or on second side.
13. method according to claim 12; Wherein said lateral acceleration information comprises the polarity information that shows the lateral acceleration direction; The polarity of the said lateral acceleration information that wheel on said first side produces, the polarity of the said lateral acceleration information that produces with wheel on said second side is opposite.
14. method according to claim 12; Wherein said lateral acceleration information comprises the polarity information that shows the lateral acceleration direction; The polarity of the lateral acceleration information that said wheel produces because of said vehicle court's first side turning is opposite with the polarity of same said wheel lateral acceleration information of generation because of said vehicle court's second side turning.
15. method according to claim 12, wherein said transverse acceleration signal comprises magnitude information, and it shows the magnitude of the transverse acceleration of the said relatively carbody of said wheel; This method also comprises step: confirm with reference to said magnitude information whether wheel is track adjusting wheel.
16. wheel identification equipment that is used for vehicle; Comprise a plurality of wheels that are installed on said carbody first side and second side; Said equipment comprises a treater and a plurality of wheel means of identification; Each wheel means of identification all is respectively installed on said a plurality of wheel, and wherein each said wheel means of identification comprises:
An accelerometer, it produces a transverse acceleration signal, with corresponding one perpendicular to the acceleration/accel on the direction on said wheel revolutions plane, said transverse acceleration signal comprise said transverse acceleration be towards or away from the direction information of said carbody;
A wireless signal transmitter is used to launch said acceleration signal to said treater;
Wherein said treater is confirmed the lateral position of said wheel according to the polarity of said direction information.
17. wheel identification equipment according to claim 16; Wherein corresponding said vehicle turning; The polarity of the direction information that the said accelerometer of the wheel on said first side produces, the polarity of the direction information that produces with the said accelerometer of wheel on said second side is opposite.
18. wheel identification equipment according to claim 16; The turning of wherein corresponding said vehicle on another direction, said treater obtain the relation between the polarity of the said transverse acceleration signal that the said accelerometer of lateral position and the said wheel of said wheel produces.
19. wheel identification equipment according to claim 16, wherein said treater are configured to the polarity of the said transverse acceleration signal of when vehicle carries out a turning, launching with reference to the said accelerometer of said wheel, confirm the lateral position of said wheel.
20. wheel identification equipment according to claim 16 also comprises an extra accelerometer that is installed on the said car body, said extra accelerometer provides a reference direction, and its indication turn direction uses for said treater.
21. wheel identification equipment according to claim 16, the said wheel of wherein said vehicle is interchangeable, and the wheel means of identification is configured and makes the identity of said wheel depend on the present position that said relatively vehicle is installed.
22. wheel identification equipment according to claim 21, wherein in a single day the installation site of wheel on said vehicle change, and the identity of each said wheel promptly changes.
23. wheel identification equipment according to claim 16; Wherein said transverse acceleration signal also comprises the magnitude information of the transverse acceleration magnitude of the said relatively car body of said wheel, and the said magnitude information of said processor reference is surveyed the track adjusting wheel in said a plurality of wheel.
24. wheel identification equipment according to claim 16, wherein said transverse acceleration signal comprises magnitude information, and it shows the magnitude of the transverse acceleration of the said relatively carbody of said wheel; Said treater confirms from said magnitude information whether wheel is track adjusting wheel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2007/070892 WO2009049459A1 (en) | 2007-10-15 | 2007-10-15 | Method and apparatus for identification of wheels of a vehicle and a vehicle comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101835638A CN101835638A (en) | 2010-09-15 |
| CN101835638B true CN101835638B (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007801008371A Expired - Fee Related CN101835638B (en) | 2007-10-15 | 2007-10-15 | Method and apparatus for identification of wheels of a vehicle and a vehicle comprising same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101835638B (en) |
| WO (1) | WO2009049459A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014195873A1 (en) * | 2013-06-03 | 2014-12-11 | E-Aam Driveline Systems Ab | System and method for determining a vehicle velocity parameter |
| TWI558579B (en) | 2014-10-01 | 2016-11-21 | 財團法人工業技術研究院 | Tire positioning method and tire positioning system |
| CN110789279B (en) * | 2015-12-29 | 2022-06-07 | 英飞凌科技股份有限公司 | Wheel locator, wheel locating device, system, method and computer program for locating the position of a wheel |
| EP3495170B1 (en) * | 2016-08-05 | 2021-12-29 | Autel Intelligent Technology Corp. Ltd. | Method and apparatus for positioning tire pressure sensor |
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| US6204758B1 (en) * | 1999-07-23 | 2001-03-20 | Schrader-Bridgeport International, Inc. | System to automatically determine wheel position for automotive remote tire monitoring system |
| US6278361B1 (en) * | 1999-12-03 | 2001-08-21 | Trw Inc. | System and method for monitoring vehicle conditions affecting tires |
| US6684691B1 (en) * | 2000-09-19 | 2004-02-03 | General Motors Corporation | Method and system for determining tire pressure imbalances |
| CN1699084A (en) * | 2004-05-21 | 2005-11-23 | 米其林研究和技术股份有限公司 | System and method for generating electric power from a rotating tire's mechanical energy |
| CN1734246A (en) * | 2004-08-11 | 2006-02-15 | 住友橡胶工业株式会社 | Judging method of vehicle loading condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2744396A1 (en) * | 1996-02-01 | 1997-08-08 | Michelin & Cie | DEVICE FOR MONITORING INFLATION PRESSURE OF TIRES OF A VEHICLE |
| US7010968B2 (en) * | 2002-04-18 | 2006-03-14 | Schrader Bridgeport International, Inc. | Determination of wheel sensor position using a wireless solution |
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2007
- 2007-10-15 CN CN2007801008371A patent/CN101835638B/en not_active Expired - Fee Related
- 2007-10-15 WO PCT/CN2007/070892 patent/WO2009049459A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6204758B1 (en) * | 1999-07-23 | 2001-03-20 | Schrader-Bridgeport International, Inc. | System to automatically determine wheel position for automotive remote tire monitoring system |
| US6278361B1 (en) * | 1999-12-03 | 2001-08-21 | Trw Inc. | System and method for monitoring vehicle conditions affecting tires |
| US6684691B1 (en) * | 2000-09-19 | 2004-02-03 | General Motors Corporation | Method and system for determining tire pressure imbalances |
| CN1699084A (en) * | 2004-05-21 | 2005-11-23 | 米其林研究和技术股份有限公司 | System and method for generating electric power from a rotating tire's mechanical energy |
| CN1734246A (en) * | 2004-08-11 | 2006-02-15 | 住友橡胶工业株式会社 | Judging method of vehicle loading condition |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2009049459A1 (en) | 2009-04-23 |
| CN101835638A (en) | 2010-09-15 |
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