CN103448492B - Comprehensive receiver - Google Patents
Comprehensive receiver Download PDFInfo
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- CN103448492B CN103448492B CN201310204364.7A CN201310204364A CN103448492B CN 103448492 B CN103448492 B CN 103448492B CN 201310204364 A CN201310204364 A CN 201310204364A CN 103448492 B CN103448492 B CN 103448492B
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- Prior art keywords
- power supply
- tire
- action
- vehicle power
- signal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—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
- B60C23/0418—Sharing hardware components like housing, antenna, receiver or signal transmission line with other vehicle systems like keyless entry or brake control units
Abstract
The present invention provides a kind of comprehensive receiver that also can monitor tire pressure in the vehicle power supply down periods.When vehicle power supply is closed, verify ECU(8) by intelligence reception being required, signal Srco exports to comprehensive receiver (18) at the implementation time point of intelligent communication, make comprehensive receiver 18 carry out intelligent communication.TPMS microcomputer (19) is in the case of vehicle power supply (ignition switch 33) is closed, and and then intelligence receives and requires that the ON → OFF of signal Srco carries out the action that tire pressure monitors.It is to say, according to the action of carrying out pneumatic pressure monitoring system of tire (7) Tong Bu with the intelligent communication being implemented vehicle power supply shut-in time ground connection.Then, the tyre pressure monitoring apparent time of vehicle power supply down periods detects balloon tire when, had previously been stored in memorizer (21), when vehicle power supply turns and opens, implemented the alarm of low pressure of tire.
Description
Technical field
The present invention relates to receive the electric wave of the electric wave of electron key system and pneumatic pressure monitoring system of tire
Both comprehensive receiver.
Background technology
In the past, on a lot of vehicles, it is equipped with carrying out key verification by radio communication and electron key
Electron key system.Have to pass through short from the communication of vehicle for opportunity as electron key system is the most known
What the mode of distance communication carried out ID verification (intelligent checking) exempts from key operated system.Further, in recent years
Lift-launch pneumatic pressure monitoring system of tire (TPMS:Tire Pressure Monitoring is had on vehicle
System) tendency, this pneumatic pressure monitoring system of tire includes the tire air pressure sensor being arranged on each tire
Device, and the tire pressure signal of tire pressure sensing is wirelessly transmitted to car body, thus monitor on car body
Tire pressure.
, in the case of existing system, the electric wave that sent from electron key system and from tyre pressure monitoring
The electric wave that viewing system sends is all UHF(Ultra High Frequency) electric wave that carries.Therefore, in order to
The quantity of parts of abatement vehicle, have studied the receptor that is mounted on car body as electron key system and wheel
The common receptor (comprehensive receiver) of air pressure monitoring system uses (for example, referring to patent documentation 1).
No. 4552995 publications of patent documentation 1 Japanese Patent Publication No.
, it not to limit comprehensive receiver in this pneumatic pressure monitoring system of tire, but be usually at car
Carry out, during power supply opening or during travelling, the action that tire pressure monitors.But, travel beginning
After, tire pressure might not be obtained from all of 4 tires at once, such as, exist due to noise and wheel
The reason of tire turning position etc. occurs can not obtaining the situation of air pressure (tire pressure) from the specific tire having,
Like this, need the problem of time having occurred as soon as to the air pressure obtaining all of tire.If due to
It is advantageously ensured that security row notify the warning of low pressure of tire after can starting running to driver if at once
Sail, so there being the needs of the technological development meeting this point.
Summary of the invention
The purpose of the present invention is for providing a kind of vehicle power supply down periods also can monitor comprehensively connecing of tire pressure
Receive device.
In order to solve above-mentioned problem, the comprehensive receiver of the present invention, at electron key system and tyre pressure monitoring
Being used in conjunction with in viewing system, described electron key system verifies the legitimacy of electron key according to radio communication,
Tire pressure signal is wirelessly transmitted to by described pneumatic pressure monitoring system of tire from the sensor portion being arranged on tire
Car body, and on described car body, monitor tire pressure, it is characterised in that possess: monitor the power supply shape of vehicle
The vehicle power supply state monitoring unit of state；And tire pressure monitors and carries out unit, when vehicle power supply is closed,
Synchronously carry out tire pressure with the communication operation of the described electron key system implemented in this case to monitor
Action.
According to the composition of the present invention, when vehicle power supply power-off, due to the electron key with this time
The action of system synchronizes to be allowed to tire on the drive wheels pressure monitoring system, it is possible to when vehicle power supply is closed, also
Tire pressure can be monitored.The when of the tire of low pressure being detected when vehicle power supply is closed, stored in advance
In memory, when being converted to vehicle power supply and opening, by the alert notification of low pressure of tire to user.By
This, when vehicle power supply opens conversion, it is possible at once by the alert notification of low pressure of tire to user.
Accompanying drawing explanation
Fig. 1 is electron key system and the block chart of pneumatic pressure monitoring system of tire of an embodiment.
Only receive communication summary when requiring signal control comprehensive receiver with intelligence when Fig. 2 is shown in normal
Time diagram.
Receive with intelligence when Fig. 3 is shown in normal and require that signal and intelligent frequency conversion signal control comprehensive
The time diagram of communication summary during receptor.
Fig. 4 is the time that the action being taken the comprehensive receiver opening period at vehicle power supply illustrates
Figure.
Fig. 5 is the time that the action being taken the comprehensive receiver in the vehicle power supply down periods illustrates
Figure.
Fig. 6 is that the action that the comprehensive receiver to the vehicle power supply down periods at other example is taken is carried out
The time diagram illustrated.
Symbol description
1 ... vehicle, 2 ... electron key, 3 ... electron key system, 4 ... tire, 5 ... as the wheel in sensor portion
Air pressure sensor, 6 ... car body, 7 ... pneumatic pressure monitoring system of tire, 8 ... as the verification in certification control portion
ECU, 18 ... comprehensive receiver, 19 ... as the miniature calculating of TPMS of tire pressure supervision microcomputer
Machine, 20 ... as receive circuit reception IC, 28 ... power supply terminal, 31 ... electric fuse, 32 ... battery, 48 ... make
For the power supply status monitoring unit of vehicle power supply monitor unit, 49 ... monitor as tire pressure and carry out the logical of unit
Letter synchronization process portion, Stp ... tire pressure signal, Srco ... as the intelligence reception of operating state conversion signal
Require signal.
Detailed description of the invention
Below, an embodiment of the comprehensive receiver present invention embodied according to Fig. 1-Fig. 5 illustrates.
As it is shown in figure 1, vehicle 1 is provided with between electron key 2 carries out key verification (ID by wireless
Verification) electron key system 3.The electron key system of this example for exempting from key operated system, its according to from
The communication of vehicle 1 is that opportunity is passed through short-distance wireless (communication distance: number m) and carried out ID verification, and with
Its ID verification is set up as condition, the operation of license/implementation mobile unit.Vehicle 1 is provided with wheel nausea
Pressure monitoring system 7, this pneumatic pressure monitoring system of tire 7 includes that the tire pressure being arranged in each tire 4 passes
Sensor (alternatively referred to as tire valve) 5, and the tire pressure letter that will be detected by tire pressure sensing 5
Number Stp is wirelessly transmitted to car body 6, and monitors tire pressure on car body 6.It addition, tire pressure passes
Sensor 5 is corresponding to sensor portion.
Car body 6 is provided with the verification of the legitimacy of certification electron key 2 in electron key system 3
ECU(Electronic Control Unit) 8；The car body ECU9 of the power supply of management electric apparatus mounted on vehicle；
And the Engine ECU 10 of control electromotor, these ECU are connected by car internal bus 11.At electron key
In each bin (not shown) of 2 and verification ECU8, write stores electron key ID.In verification
Being connected on ECU8 can be to car outdoor transmission LF(Low Frequency) the car outdoor transmission of electric wave that carries
Device 12；And can be to the car indoor transmitter 13 of the electric wave of car indoor transmission LF band.It addition, verification ECU8
Corresponding to certification control portion.
It is provided with controlling the controller 14 of the action of tire pressure sensing 5 at tire pressure sensing 5；
The pressure transducer 15 of the air pressure of detection tire 4；Detect the adding of acceleration of the direction of rotation about tire 4
Velocity sensor 16；And the portion of delivering letters 17 of the electric wave of UHF band can be sent.Storage at controller 14
On device (not shown), it is logged in the intrinsic tire ID (valve ID) of each sensor.Controller 14
Detection signal measurement tire pressure based on pressure transducer 15, sends tire pressure signal Stp termly.
According to the detection signal of acceleration transducer 16, controller 14 confirms that tire 4 starts to rotate, i.e. confirm vehicle
1 when entering transport condition, also sends tire pressure signal Stp to car body 6.Tire pressure signal Stp
Including the data such as tire ID and tire pressure.
Car body 6 is provided with the comprehensive receiver 18 of the electric wave being able to receive that UHF carries, this comprehensive receiver
18 play a role as the common receptor of electron key system 3 and pneumatic pressure monitoring system of tire 7.Comprehensively
Receptor 18 is electrically connected in verification ECU8 and car body ECU9.Comprehensive receiver 18 can together receive from
UHF electric wave that electron key 2 is sent and the UHF electric wave sent from tire sensor 5.
Comprehensive receiver 18 is provided with TPMS microcomputer 19, real in comprehensive receiver 18
The reception action of row pneumatic pressure monitoring system of tire 7；And it is demodulated/the reception of amplification etc. to receiving electric wave
IC(Integrated Circuit) 20.On the memorizer 21 of TPMS microcomputer 19, write
Store each tire ID of 4 wheels.Receiving antenna connection terminal 22 of IC (reception circuit) 20,
It is connected to multiple (this example is 2) reception antenna 23 by switch portion 24.On reception antenna 23,
Have and be such as arranged on the car domestic aerial that car is indoor, the baggage car antenna etc. being arranged in baggage car.Open
A side in 2 reception antennas 23 is selectively connected to receive IC20 by GUAN spot 24.It addition, TPMS
Microcomputer 19 is equivalent to tire pressure supervision microcomputer.
In comprehensive receiver 18, it is provided with the adjustor 25 for regulating power supply and the string of diode 26
Connection circuit.The input side of this series circuit is connected to the power input terminal 27 of comprehensive receiver 18, defeated
Go out side be then connected to TPMS microcomputer 19 power supply terminal 28 and receive IC20's by diode 29
Power supply terminal 30.Power input terminal 27 is connected to battery 32 by the electric fuse 31 that can load and unload.Adjust
Whole device 25 is by supply voltage Vc(such as 5V) supply is to TPMS microcomputer 19 and receives IC20.
Comprehensive receiver 18 is provided with IG signal input terminal 34, this IG signal input terminal 34 from
Ignition switch 33 inputs vehicle power supply opening signal (IG signal) Sig.IG signal input terminal 34 is being combined
It is connected with the IG terminal 35 of TPMS microcomputer 19 in closing receptor 18, and in comprehensive receiver 18
Outer ignition switch 33 of passing through is connected with the midpoint 36 of power input terminal 27 and electric fuse 31.So-called car
Power supply opening, refers to that ignition switch 33 is handled to such as ACC (Accessory) on-position,
IG (Ignition) on-position, the state during position such as electromotor starting position.
The data output terminal 37 receiving IC20 passes through data output terminal 38 and the school of comprehensive receiver 18
Test ECU8 to connect, and be connected with the DATA IN terminal 39 of TPMS microcomputer 19.Receive IC20
Can export receiving data to verification ECU8 and TPMS microcomputer 19 from data output terminal 37.
TPMS microcomputer 19 is connected with car body ECU9 by the control terminal 40 of comprehensive receiver 18.
Being provided with intelligence reception in comprehensive receiver 18 and require signal input terminal 41, its input is from verification
The intelligence of ECU8 output receives and requires signal Srco.Intelligence receives and requires signal input terminal 41 and TPMS
The action Converting terminal 42 of microcomputer 19 and the 1st Converting terminal 43 of reception IC20 connect.Intelligence
Can receive and require that signal Srco is to change the action pattern of comprehensive receiver 18 to as electron key system
The requirement of [intelligent communication pattern] that the receptor of 3 runs, is made up of the pulse signal with predetermined pulse.
It addition, intelligence receives requires that signal Srco changes signal corresponding to operating state.
Being provided with intelligent frequency transducer 44 in comprehensive receiver 18, its input is from the output of verification ECU8
Frequency conversion signal Scsel.Intelligent frequency transducer 44 and the 2nd Converting terminal 45 receiving IC20 connect
Connect.Intelligent frequency cuts the requirement that signal Scsel is the reception frequency of conversion [intelligent communication pattern], by having
The pulse signal composition of predetermined pulse.
Being provided with aerial signal input terminal 46 in comprehensive receiver 18, its input is from the sky of verification ECU8
Line conversion signal Sasel.Antenna changing over signal inputs 46 is connected with switch portion 24 by electric wiring.
Antenna conversion signal Sasel is the requirement of reception antenna 23 that conversion uses, and has the pulse with regulation
Pulse signal forms.Switch portion 24 selects reception antenna 23 to be used according to antenna conversion signal Sasel.
Being provided with pattern setting unit 47 receiving on IC20, it can receive according to intelligence and require signal Srco
And intelligent frequency conversion signal Scsel arranges the action pattern of comprehensive receiver 18.Pattern setting unit 47
Input carrys out the intelligence of self checking ECU8 and receives when requiring the pulse of signal Srco, will receive the action of IC20
Patten transformation is to [intelligent communication pattern].[intelligent communication pattern] refers to that extraction is sent from electron key 2
The reception frequency (such as, 312/314MHz) of electric wave, and the pattern of this electric wave can be read.Pattern is arranged
Portion 47 receives from the intelligence that verification ECU8 sends without input and requires the pulse of signal Srco, just
The action pattern receiving IC20 is changed to [TPMS communication pattern].[TPMS communication pattern] refers to that extraction is from wheel
The reception frequency (such as, 315MHz) of the electric wave that air pressure sensor 5 sends, and this electric wave can be read
Pattern.
Pattern setting unit 47 carrys out the intelligence frequency of self checking ECU8 when [intelligent communication pattern] without input
The pulse of rate conversion signal Scsel, being set to receive frequency is the [the 1st of the 1st frequency (314MHz)
Intelligent communication pattern].On the other hand, if pattern setting unit 47 have input from school when intelligent communication pattern
Testing the pulse of the intelligent frequency conversion signal Scsel of ECU8, being set to receive frequency is the 2nd frequency
(312MHz) [the 2nd intelligent communication pattern].
TPMS microcomputer 19 receives from verification ECU8 input intelligence and requires signal Srco.TPMS is miniature
Computer 19 is not when inputting intelligence reception and requiring signal Srco, it is judged that receive the action of receptor 18
Pattern is " TPMS communication pattern ".Further, TPMS microcomputer 19 in this condition, with from point
Fire switch 33 input vehicle power supply opening signal Sig condition, carries out the action that tire pressure monitors.
TPMS microcomputer 19 is provided with monitoring the vehicle power supply Stateful Inspection of the state of ignition switch 33
Portion 48；And communication synchronization process portion 49, when vehicle power supply is closed, communication synchronization process portion 49 with
The action that tire pressure monitors synchronously is carried out in the action of the intelligent communication being now carried out.Vehicle power supply state
Monitoring unit 48 monitors the switching signal from ignition switch 33 input.Communication synchronization process portion 49 is in vehicle electrical
When source is closed, no longer input intelligence receives and requires the pulse of signal Srco, i.e. periodically (polling cycle)
The time point that the intelligent communication carried out terminates, carries out tyre pressure monitoring apparent motion and makees.It addition, vehicle power supply state prison
Being equivalent to vehicle power supply state monitoring unit depending on portion 48, communication synchronization process portion 49 is equivalent to tyre pressure monitoring
Depending on carrying out unit.
Intelligence receives and requires signal Srco, by diode 50 input to the power supply terminal 30 receiving IC20.
Thus, the intelligence of this example receives and requires that signal Srco is also used as the power supply (5V) receiving IC20.
Therefore, the power supply receiving IC20 is received the OR circuit group requiring signal Srco by adjustor 25 and intelligence
Become.Even if therefore it is presumed that taken off electric fuse 31 to stopped the power supply supply from adjustor 25, it is also possible to
Received by the intelligence of input and require signal Srco, receive IC20 with this for power drives.
Hereinafter, the action of the comprehensive receiver 18 of this example is described according to Fig. 1-Fig. 5.
[patten transformation action: when only carrying out the control that intelligence reception requires signal]
As in figure 2 it is shown, ignition switch 33 be in vehicle power supply open time, the such as electromotor of vehicle 1
During work, verification ECU8 neither exports intelligence reception and requires that signal Srco is the most defeated to comprehensive receiver 18
Go out intelligent frequency conversion signal Scsel.Now, owing to receiving the 1st Converting terminal 43 and the 2nd of IC20
Any one party of Converting terminal 45 the most not input pulse, so the action pattern receiving IC20 is arranged by pattern
Portion 47 is set to ［ TPMS communication pattern ］.Further, because TPMS microcomputer 19 does not input intelligence
Accepting to require the pulse of signal Srco, making so carrying out tyre pressure monitoring apparent motion.Therefore, comprehensive receiver
18 can receive the tire pressure signal Stp sent from tire pressure sensing 5.
The time point that verification ECU8 carries out at intelligent checking, accepts intelligence to require that signal Stco exports to comprehensively
Receptor 18.Comprehensive receiver 18 is received by intelligence and requires that signal input terminal 41 inputs this intelligence and connects
Receipts require signal Srco.Now, pattern setting unit 47 is because receiving by the 1st Converting terminal input intelligence
Require signal Srco, so changing the action pattern receiving IC20 to [intelligent communication pattern].TPMS is micro-
Type computer 19 requires the pulse of signal Srco owing to input intelligence receives, and monitors so stopping tire pressure
Action.It addition, here, do not export intelligent frequency conversion signal Scsel because of from verification ECU8, so
Action pattern is set to [the 1st intelligent communication pattern].
In [the 1st intelligent communication pattern], when electron key 2 is in car outdoor, as it is shown in figure 1, car room
Outer transmitter 12 returns the requirement signal Srq of letter with the 1st frequency to car outdoor LF transmission for ID, and makes to connect
Receive and required that the electron key 2 of signal Srq beams back its ID signal Sid.Comprehensive receiver 18 have received this
If individual ID signal Sid, just output is to verifying ECU8.ECU8 is according to defeated from comprehensive receiver 18 in verification
The ID signal Sid entered carries out ID verification (verification of car outdoor intelligent), if this verification is just set up
The lock/unlock of license/implementation car door.Electron key 2 is when car indoor, and this is delivered letters device 13 by car indoor
Carry out the transmission of requirement signal Srq, carry out ID verification (verification of car indoor intelligent) as car outdoor.
If this verifies establishment, just license is started electromotor by tail-off 52.
ECU8 is if it is confirmed that intelligent checking need not be carried out in verification, would not export intelligence to comprehensive receiver 18
Reception requires signal Srco.That is, receive IC20 and do not require signal Srco from verification ECU8 input intelligence reception.
Therefore, if pattern setting unit 47 does not inputs intelligence reception by the 1st Converting terminal 43 requires signal Srco
If, just will receive the action pattern of IC20 by [the 1st intelligent communication pattern] conversion to [TPMS communicates mould
Formula].It addition, TPMS microcomputer 19 is owing to being not input intelligence under vehicle power supply open mode to connect
Receiving the pulse requiring signal Srco, making so starting tyre pressure monitoring apparent motion.Thus, comprehensive receiver 18
Can action under [TPMS communication pattern], the tire pressure sent from tire sensor 5 can be received and believe
Number Stp.
[patten transformation action: when intelligence receives the control requiring signal and intelligent frequency conversion signal]
If as it is shown on figure 3, pattern setting unit 47 passes through the 1st Converting terminal when [TPMS communication pattern]
43 input intelligence receive and require signal Srco, just will receive the action pattern conversion of IC20 to [the 1st intelligence
Communication pattern].Now, comprehensive receiver 18 is received action with [the 1st intelligent communication pattern], but
ECU8 is not if it is confirmed that establish with the 1st frequency intelligent communication in verification, and intelligent frequency is just changed signal Scsel
Output is to comprehensive receiver 18.It addition, the establishment of intelligent communication judges such as with can not in the regular hour
Receive electric wave or detect that noise is that condition is carried out.
If pattern setting unit 47 inputs intelligence reception by the 1st Converting terminal 43 and requires signal Srco, and
Intelligent frequency conversion signal Scsel is inputted, just the action mould receiving IC20 by the 2nd Converting terminal 45
Formula is changed to [the 2nd intelligent communication pattern].Thus, reception frequency is become the 2nd frequency by comprehensive receiver 18
Rate carries out intelligent communication.
Afterwards, verification ECU8 is by " the intelligent communication pattern " of comprehensive receiver 18 the most alternately conversion
To " the 1st intelligent communication pattern " or " the 2nd intelligent communication pattern ", carry out intelligent checking.
This is because, electron key 2 receives the electric wave from vehicle 1 intelligent checking, and electron key 2 is first with the 1st
Frequency carries out electric wave transmission, without the response from vehicle 1 to this, is then converted to the 2nd frequency again
The action that secondary trial electric wave sends.Thus, vehicle 1 and electron key 2 implement intelligent checking.
ECU8 is if it is confirmed that intelligent checking need not be carried out in verification, would not export intelligence reception and require signal Srco
And intelligent frequency conversion signal Scsel.That is, receive IC20 to receive from verification ECU8 input intelligence
Require signal Srco and intelligent frequency conversion signal Scsel.Mode setting part 47 is not by the 1st conversion
Terminal 43 input intelligence receive require signal Srco if, just will reception IC20 communication pattern from the " the 2nd
Intelligent communication pattern " change to " TPMS communication pattern ".TPMS microcomputer 19 is because in vehicle electrical
Do not input intelligence under the state that source is opened and receive the pulse requiring signal Srco, so starting tire pressure prison
Depending on action.Thus, comprehensive receiver 18 carries out action as the receptor of pneumatic pressure monitoring system of tire 7.
［ opening the action of period at vehicle power supply ］
As shown in Figure 4, the action that vehicle 1 should be taked during vehicle power supply is opened is the prison of tire pressure
Depending on, it is not absolutely required to carry out the intelligent checking with electron key 2.Therefore, verification ECU8 is in vehicle electrical
Period is opened in source, intelligence will not be received and require that signal Srco exports to intelligent receiver 18.Therefore, connect
Receipts IC20 does not inputs intelligence reception by the 1st Converting terminal 43 and requires signal Srco, so action pattern quilt
Pattern setting unit 47 is set to [TPMS communication pattern].
When vehicle power supply is opened, TPMS microcomputer 19 inputs vehicle power supply from ignition switch 33 and opens letter
The pulse of number Sig.Therefore, TPMS microcomputer 19 when vehicle power supply is opened, Bu Huicong
Verification ECU8 input intelligence receives and requires signal Srco, makees so carrying out tyre pressure monitoring apparent motion.Thus,
Comprehensive receiver 18 opens period at vehicle power supply, and the receptor as pneumatic pressure monitoring system of tire 7 is carried out
Action.
In this, it is assumed that vehicle 1 starts running.Now, as it is shown in figure 1, the control of tire pressure sensing 5
Portion 14 processed goes out the rotation of tire 4 according to the detection signal detection of acceleration sensor 16, and by the portion of delivering letters 17
Send tire pressure signal Stp.By the way, in order to not allow electric wave disturb, 4 wheels each
Individual tire sensor 5 sends tire pressure signal Stp by time difference set in advance.
Comprehensive receiver 18 this time is [TPMS communication pattern], passes it is possible to receive from tire pressure
The tire pressure signal Stp that sensor 5 sends.Receive the wheel nausea that IC20 will be received by reception antenna 23
Pressure signal Stp exports to TPMS microcomputer 19.TPMS microcomputer 19 certification tire pressure is believed
The legitimacy of the tire ID in number Stp, if the verification of this tire ID is set up, just takes turns being included in equally
Tire pressure information in air pressure signal Stp confirms.TPMS microcomputer 19 is detecting wheel
When air pressure data are the low pressure of below setting, by abnormal tyre notice request output to car body ECU9.Car
If body ECU9 inputs abnormal tyre notice request from TPMS microcomputer 19, just indoor at such as car
The notice low pressure of tire warning such as instrumental panel.
［ actions of vehicle power supply down periods ］
As it is shown in figure 5, during the vehicle power supply down periods are the such as parked car of vehicle 1, during this,
Due to can be to car door lock/unlock or startup electromotor, so needing regularly to carry out and electron key 2
Intelligent communication.Now, verification ECU8 send termly with fixed polling cycle and requires that signal Srq(is concrete
For wake-up signal), confirm that whether intelligent communication is established with this.Therefore, verification ECU8 is carrying out intelligent leading to
The time point of letter, receives intelligence and requires that signal Srco exports termly to comprehensive receiver 18.
If pattern setting unit 47 receives from verification ECU8 input intelligence and requires signal Srco, just will receive
The action pattern of IC20 is changed to [intelligent communication pattern].Further, TPMS microcomputer 19 is because inputting
Intelligence receives the pulse requiring signal Srco, makees so stopping tyre pressure monitoring apparent motion.Therefore, in intelligence
Reception requires that signal Srco is output period, and comprehensive receiver 18 is received with " intelligent communication pattern "
Action.
If 1 poll release, verification ECU8 just no longer exports intelligence from this time point and receives requirement letter
Number Srco.Communication synchronization process device 49 confirms car in the monitoring result according to vehicle power supply Stateful Inspection portion 48
In the case of power-off, if be detected that intelligence receives the non-input state (arteries and veins requiring signal Srco
Sweep away fall), TPMS microcomputer 19 turns on the power, and starts tyre pressure monitoring apparent motion and makees.That is, at car
During power-off, according to after each intelligent communication that fixed polling cycle is implemented, it is possible to continuously
Carry out tyre pressure monitoring apparent motion to make.Thus, not only vehicle power supply open period and at vehicle power supply closed-down period
Between also be able to monitor tire pressure.
TPMS microcomputer 19 is in the tyre pressure monitoring apparent time of vehicle power supply down periods, if receiving wheel
Air pressure signal Stp, just confirms tire pressure by the process open period with vehicle power supply as.This
Time, if TPMS microcomputer 19 detects balloon tire, just from the tire pressure signal Stp received
Abnormal tyre notice request is temporarily stored in bin 21.TPMS microcomputer 19 is vehicle power supply
When opening the startup of equivalence, the abnormal tyre notice request being stored in bin 21 is exported to car body ECU9,
And make car body ECU9 carry out abnormal tyre to report to the police.Thus, conversion is closed to vehicle power supply from vehicle power supply
After opening, implement abnormal tyre at once and report to the police.
［ taking off action during electric fuse ］
If also tire pressure monitoring being set to effectively in the vehicle power supply down periods, such as by vehicle
The when of 1 long-distance carrying etc., comprehensive receiver 18 there is no need to carry out the most termly action originally, so leading
Send a telegraph pond 32 to consume.Then, it is not necessary in the case of tire pressure monitoring system 7, preferably by taking off
Electric fuse 31 is not so that comprehensive receiver 18 consumes the electric power of battery 32., completely cut through to comprehensively
If the supply of electric power of receptor 18, electron key system 3 also can lose efficacy, be not easy to handle car door lock/
Unlock or start electromotor.
To this, in book example, before and after electric fuse 31, obtain verification ECU8 and comprehensive receiver 18
Power source path, than electric fuse 31 closer to battery 32 side connect verification ECU8, its contrary side
Connect comprehensive receiver 18.And the intelligence being output from verification ECU8 is received and requires that signal Srco inputs
To receiving IC20, it is possible to this signal is used as receiving IC20 power supply.Therefore, even if in order to seek electricity
Pond 32 electric power saving and taken off electric fuse 31, remain to the reception making comprehensive receiver 18 carry out intelligent communication
Action, so on this point of can implement intelligent communication it may be said that more convenient.
According to the composition of present embodiment, following described effect can be obtained.
(1) when vehicle power supply is closed, implement ground by making tyre pressure monitoring apparent motion make with now intermittent
Intelligent communication synchronizes so that make even if also being able to carry out tyre pressure monitoring apparent motion in the vehicle power supply down periods.
Then, the when of detecting balloon tire when the vehicle power supply down periods carry out the supervision of tire pressure, will
It is maintained in memorizer 21 in advance, implements low pressure of tire alarm when vehicle power supply turns and opens.Therefore,
Not only when vehicle power supply is opened, it also is able to monitor tire pressure in the vehicle power supply down periods.
(2) monitor tire pressure in advance in the vehicle power supply down periods, open at vehicle power supply, i.e. vehicle
Power supply becomes the moment of ACC power supply opening and notifies this monitoring result, it is possible to carried out before vehicle travels
The alarm of low pressure of tire.
(3) action that the tire pressure that carries out when vehicle power supply is closed is monitored, by with at vehicle
The intelligent communication synchronization implementation carried out during power-off.Therefore, it can combining of starting for intelligent communication
Close receptor 18 and be moved directly to tyre pressure monitoring apparent motion work, it is possible to Min. suppresses to start electricity
Power consumption needed for source.Also have, it is possible to reduce the number of times of power initiation action, so contributing to cutting down
The process time that the intelligent communication of vehicle power supply down periods and tyre pressure monitoring apparent motion are made.Further, due to vehicle
Intelligent communication during power-off and tyre pressure monitoring apparent motion are as 1 set action, even if so tire pressure
When the action monitored is appended to vehicle power supply closedown, bring impact also will not to the intelligent communication originally having.
(4) the tyre pressure monitoring apparent motion carried out when being closed by vehicle power supply is made with when closing at vehicle power supply
Carry out after the action of the intelligent communication carried out.Therefore, intelligent communication and tyre pressure monitoring apparent motion are made to weigh
Multiple.Therefore, the action that tire pressure when vehicle power supply is closed monitors, it is possible to not by the electricity of intelligent communication
Implement under the influence of ripple.
(5) will require that signal Srco inputs to the miniature calculating of TPMS from the intelligence reception of verification ECU8 output
Machine 19, receives the inaction that has requiring the pulse of signal Srco to input and judges that material, decision are with this intelligence
The supervision action of tire pressure when no implementation vehicle power supply is closed.Therefore, it is possible to what utilization existed for originally
Signal sets TPMS microcomputer 19 action, it is not necessary to the new signal that setting action sets.
(6) when vehicle power supply is closed, the most long-distance carrying time etc. need not tire pressure monitor action
During, if taking off electric fuse 31, it is not necessary to allow comprehensive receiver 18 carry out tyre pressure monitoring
Action, it is possible to save battery 32 electric power.Therefore, even if using and can closing at vehicle power supply
Time implement tyre pressure monitoring apparent motion make composition, also can save the electric power of battery 32.Further, insurance is taken off
During silk 31, because intelligence receives requires that signal Srco is supplied to reception IC20 as power supply, can continue
Allow comprehensive receiver 18 as the receptor of intelligent communication to carry out action.Therefore, electric fuse is being taken off
The inconvenience of electron key system 3 also will not occur when 32 to use.
(7) because tyre pressure monitoring apparent motion when being closed by vehicle power supply makees the poll action with intelligent communication
Linkage is carried out, so can implement vehicle power supply close with interval such suitable opportunity of poll action
Time tire pressure monitor action.
It addition, embodiment is not limited only to above-described composition, following form can be changed to.
As shown in Figure 6, it is also possible to carry out intelligent communication and tyre pressure monitoring when vehicle power supply is closed simultaneously
Apparent motion is made.Realizing this to constitute, the frequency needing each electric wave of intelligent communication and tyre pressure monitoring apparent motion work is identical
(roughly the same), and data rate is close.Like this, electric wave and the wheel of intelligent communication can be received simultaneously
Air pressure monitors the electric wave of communication, is conducive to the efficient activity processed.
At the end of intelligent communication when vehicle power supply is closed, would indicate that the signal of this information from reception IC20
Output is to TPMS microcomputer 19, and makes TPMS microcomputer 19 implement wheel nausea based on this information
The action that pressure monitors.
Vehicle power supply can also have power-off/IG and open/3 positions of engine start, it is also possible to
There are 2 positions of power-off/power supply opening.
Making with tyre pressure monitoring apparent motion when vehicle power supply is closed can the electron key system of the same period
The communication operation (1 action) of 3, is not limited to the sending action of wake-up signal.Such as, add at intelligent checking
In the case of challenge response, can be as wake-up signal and the transmission of response coding, it is also possible to inside this
Comprise key number.Also it is possible to be other signals beyond wake-up signal.
Vehicle power supply becomes the power supply signal of reception IC20 and intelligence reception can also be used to require signal when closing
Other signals beyond Srco.
Reception antenna 23 can be more than 3.
Intelligent communication can at any time be carried out, without particular limitation of the opportunity of implementation.
Go journey and the loop electric wave of electron key system 3 communication can be same frequencies.
Electron key system 3 can also use following composition, i.e. sets in advance at car body right part and car body left part
Putting transmission antenna, the response by the electron key 2 to the electric wave sent from these antenna is combined, sentences
Determine electron key 2 in car, while external position, carry out ID verification.
The frequency that electron key system 3 electric wave uses can be changed to other frequencies such as the electric wave of such as LF band
Rate.It addition, be also same in pneumatic pressure monitoring system of tire 7.
Electron key system 3 can be by from vehicle 1 electric wave with near radio (communication distance:
Number cm～ten number cm) the power supply that sends to electron key 2 of mode to carry out the near radio system of communication
System.Such as anti-theft locking system of engine or NFC(Near Field is had near radio system
Communication) communication system etc..
Tire monitoring system 7 can be to make tire air pressure sensor by being arranged on the initiator of each tire 4
The form that electric wave sends implemented by device 5.
Comprehensive receiver 18, when requiring signal Srco input pulse from intelligence reception, " TPMS leads in employing
Letter pattern ", and become not input pulse time, can change to " intelligent communication pattern ".
As " the 1st intelligent communication pattern " and the difference of " the 2nd intelligent communication pattern ", except frequency
In addition, it is also possible to by such as communication format, baud rate (signal transmission rate), the parameter such as demodulation mode sets
For difference.
Comprehensive receiver 18, when not inputting the pulse of intelligent frequency conversion signal Scsel, uses the " the 2nd
Intelligent communication pattern ", and when inputting the pulse of intelligent frequency conversion signal Scsel, can change to " the
1 intelligent communication pattern ".
Intelligence receives and requires that signal Srco and intelligent frequency conversion signal also can export from other ECU respectively.
Certification control portion can be changed to verify other ECU beyond ECU8.
Operating state conversion signal can be changed to such as TPMS reception and require other signals such as signal.
Operating state conversion signal, can be as the concrete action in such as conversion " TPMS communication pattern "
The signal of requirement, it is also possible to as the signal of the requirement of the concrete action in conversion " intelligent communication pattern ".
Vehicle 1 also includes such as hybrid electric vehicle in addition to petrol power car, plug-in hybrid electric vehicle,
Electric automobile, fuel cell car etc..
Claims (5)
1. a comprehensive receiver, makes in electron key system and pneumatic pressure monitoring system of tire jointly
With, described electron key system is according to the legitimacy of radio communication verification electron key, described tire
Tire pressure signal is wirelessly transmitted to car from the sensor portion being arranged on tire by pressure monitoring system
Body, and on described car body, monitor tire pressure, it is characterised in that
Possess: monitor the vehicle power supply state monitoring unit of the power supply status of vehicle；And
Tire pressure monitors carries out unit, when vehicle power supply is closed, and implements in this case
The communication operation of described electron key system synchronously carries out the action that tire pressure monitors,
When vehicle power supply is opened, if from the action controlling described electron key system at car body side
Certification control portion input action state transition signals, the action pattern of described comprehensive receiver just becomes
For described electron key system pattern, change signal, institute without inputting described operating state
The action pattern stating comprehensive receiver just becomes pneumatic pressure monitoring system of tire pattern,
Described tire pressure supervision implementation unit is when vehicle power supply is closed, by confirming with or without described
The input of operating state conversion signal decides whether to carry out the action that described tire pressure monitors.
Comprehensive receiver the most according to claim 1, it is characterised in that
Tong Bu refer to, when vehicle power supply is closed repeatedly with the communication operation of described electron key system
And then carry out after one release of the communication of the described electron key system implemented taking turns nausea
The process of the action that pressure monitors.
Comprehensive receiver the most according to claim 1, it is characterised in that
Tong Bu refer to, when vehicle power supply is closed repeatedly with the communication operation of described electron key system
It is dynamic that an action in the communication of the described electron key system implemented and described tire pressure monitor
Make the process simultaneously carried out.
Comprehensive receiver the most according to claim 1, it is characterised in that
Possess: demodulation receives the reception circuit of electric wave；And
The tire pressure supervision microcomputer of control wheel air pressure supervision action,
From the battery being connected by electric fuse with the power supply terminal of oneself to described reception circuit and tire
Supervision microcomputer supplies power supply,
From the electricity supplying described battery between described battery and described electric fuse to described certification control portion
Power,
Also nausea is taken turns as described from the described operating state conversion signal of this certification control portion output
The power supply of pressure supervision microcomputer is supplied to,
When described electric fuse is removed, the electric power of described battery is not supplied to described tyre pressure monitoring
Depending on microcomputer, making described comprehensive receiver not at tire pressure monitoring system Modal action,
And by described operating state conversion signal as power supply supply to described reception circuit, make described combining
Close receptor with electron key system Modal action.
5. according to comprehensive receiver described in any one in claim 1-3, it is characterised in that
Described communication operation is to confirm and described electronics key termly during the parked car of described vehicle
The poll action that the communication of spoon is established.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-123272 | 2012-05-30 | ||
| JP2012123272A JP5815472B2 (en) | 2012-05-30 | 2012-05-30 | Integrated receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103448492A CN103448492A (en) | 2013-12-18 |
| CN103448492B true CN103448492B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310204364.7A Expired - Fee Related CN103448492B (en) | 2012-05-30 | 2013-05-28 | Comprehensive receiver |
Country Status (2)
| Country | Link |
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| JP (1) | JP5815472B2 (en) |
| CN (1) | CN103448492B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6265480B2 (en) * | 2014-02-19 | 2018-01-24 | アルプス電気株式会社 | In-vehicle composite system and in-vehicle device |
| WO2015194930A1 (en) * | 2014-06-19 | 2015-12-23 | Salutica Allied Solutions Sdn. Bhd. | Wireless tire monitoring system |
| JP6690583B2 (en) * | 2017-03-09 | 2020-04-28 | 株式会社オートネットワーク技術研究所 | Monitoring device, tire pressure monitoring system and control program |
| JP2023102676A (en) * | 2022-01-12 | 2023-07-25 | 株式会社デンソー | On-vehicle receiver and monitoring system for tire air pressure |
| GB2618311A (en) * | 2022-04-13 | 2023-11-08 | Airbus Operations Ltd | Synchronising a plurality of aircraft tire monitoring devices |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420627A (en) * | 2010-09-24 | 2012-04-18 | 株式会社东海理化电机制作所 | Communication terminal position judging device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189170A (en) * | 2002-12-13 | 2004-07-08 | Calsonic Kansei Corp | Tire air pressure detecting device |
| JP5224134B2 (en) * | 2009-03-26 | 2013-07-03 | 株式会社デンソー | Vehicle detection device |
| JP2011079461A (en) * | 2009-10-08 | 2011-04-21 | Tokai Rika Co Ltd | Tire pneumatic pressure monitoring system and tire pneumatic pressure monitoring method |
| JP2011079462A (en) * | 2009-10-08 | 2011-04-21 | Tokai Rika Co Ltd | Tire location registering system and tire location registering method |
-
2012
- 2012-05-30 JP JP2012123272A patent/JP5815472B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420627A (en) * | 2010-09-24 | 2012-04-18 | 株式会社东海理化电机制作所 | Communication terminal position judging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5815472B2 (en) | 2015-11-17 |
| JP2013248916A (en) | 2013-12-12 |
| CN103448492A (en) | 2013-12-18 |
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