CN103513649A - Device and method for being matched with TPMS - Google Patents
Device and method for being matched with TPMS Download PDFInfo
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- CN103513649A CN103513649A CN201310423006.5A CN201310423006A CN103513649A CN 103513649 A CN103513649 A CN 103513649A CN 201310423006 A CN201310423006 A CN 201310423006A CN 103513649 A CN103513649 A CN 103513649A
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Abstract
The invention relates to a device and method for being matched with a TPMS. The method comprises the steps that a matched wheel order sequence is preset in a storage unit, a matched starting instruction is input to a processor through an input control unit, the processor sequentially generates a triggering control instruction and transmits the triggering control instruction to a corresponding trigger according to the preset matched wheel order sequence, the trigger triggers a corresponding transmitter to transmit an ID code to a receiving unit according to the triggering control instruction, the receiving unit transmits the received ID code to a controller, and the controller transmits the received ID code and a wheel order, corresponding to the ID code, of the transmitter to a receiver to be stored. The matching of the TPMS is achieved, the matching speed is high, the accuracy is high, and the matching cost is low. When the device is applied to being matched with the TPMS on a finished automobile assembly line of a finished automobile company, the matching efficiency is greatly improved, and the matching cost is reduced.
Description
Technical field
The present invention relates to the technical field of system for detecting tire pressure (TPMS), be specifically related to a kind of matching unit and method of tire pressure monitoring system, be particularly useful on car load factory car load assembly line, tire pressure monitoring system being mated.
Background technology
Tire pressure monitoring system (Tire Pressure Monitoring System, TPMS), by adopting tire pressure sensing unit and the tire pressure monitoring unit of twireless radio-frequency communication, has realized the real-time monitoring to tire pressure.
Along with expanding economy, automobile is widely used as a kind of vehicles, brings great convenience to people's work and life.But along with the application travel speed more and more extensive, automobile of automobile is more and more faster, the frequency of the generation of traffic hazard has also reached surprising height.For how to reduce, there is the possibility of traffic hazard, the security of raising running car has become automotive field primary study direction.According to SAE's investigation in 2002, there were 260,000 traffic hazards the whole America every year on average because tire pressure is low or seepage causes; And the traffic hazard occurring on highway has 70% to cause owing to blowing out; In addition, annual 75% tire fault is because tire seepage or under-inflation cause.Statistics shows: the main cause that traffic accident increases be run at high speed middle because of blowing out that tire fault causes.And the running at high speed in process of automobile, tire fault is that lethality maximum is also the accident potential of the most difficult prevention, it is the major reason that sudden traffic hazard occurs.How to solve tire fault, how to prevent from blowing out, become the primary problem solving of vehicle safety travel.To this, US President Clinton signed and ratified US Congress about revising the motion of federal conveying method on November 1st, 2000, and federal bill requires all new cars of later producing for 2003 all to need using TPMS as standard configuration; Play the automobile that all needs travel on highway on November 1st, 2006 and all need to configure TPMS.
The effect of TPMS is by adopting tire pressure sensing unit and the tire pressure monitoring unit of twireless radio-frequency communication to carry out real-time automatic monitoring to tire pressure, and reports to the police with infrabar to having a flat tire, and to guarantee traffic safety, reduces the possibility that traffic hazard occurs.
Existing TPMS is included in the transmitter in each tire and is arranged on the receiver in car, take four-wheel automobile as example, four-wheel automobile comprises off-front wheel, the near front wheel, off hind wheel and left rear wheel, transmitter in each tire is provided with an ID code, the relevant information that transmitter sends tire sends its corresponding ID code so which tire receiver tells received information corresponding to time receiver, therefore need to mate with receiver the transmitter in TPMS system before carrying out tire pressure monitoring, ID code corresponding to transmitter that is about to each tire is kept in the EEPROM of receiver.
In prior art, the transmitter of TPMS and the matching process of receiver comprise following several:
(1) manually to the receiver input ID code corresponding with the transmitter of each tire, receiver is stored in each ID code in EEPROM.
(2) by tire being inflated, exitted or other action triggers transmitters sending its corresponding ID code to receiver, receiver is stored in received ID code in EEPROM.
(3) by handset, collect the ID code that transmitter is corresponding, and collected ID code is sent to receiver by wired or wireless mode, receiver is stored in received ID code in EEPROM.
(4) by receiver and trigger wired connection, by receiver, to control trigger triggering transmitter and send its corresponding ID code to receiver, receiver is stored in received ID code in EEPROM.
Said method (1), because ID code has uniqueness, and is generally the sequence number of 12 figure places, and manually input is easily inputed by mistake, causes that it fails to match, and the time that manually input needs is in addition long, and efficiency is low, and system matches cost is high.Method (2), (3) complicated operation, cause coupling to need the time long, and efficiency is low, causes mating cost high.Method (4) is compared with other matching process, all improve a lot, but this matching process wiring is complicated in matching efficiency and accuracy rate, and cost is high.
At present, the TPMS of automobile generally completes coupling on the car load assembly line of car load factory, and said method all cannot meet the requirement of the aspects such as efficiency that car load factory mates tire pressure monitoring system on car load assembly line, cost, accuracy rate.
Summary of the invention
The object of the invention is to overcome shortcomings and deficiencies of the prior art, the matching unit of the tire pressure monitoring system that a kind of matching efficiency is high is provided.
Object of the present invention is achieved through the following technical solutions: a kind of matching unit of tire pressure monitoring system, comprise that a controller is connected with controller, and described controller comprises:
Storage unit, for storing the position of wheel order of coupling;
Input Control Element, arrives processor for Input matching sign on;
Receiving element, the ID code sending for receiving transmitter, and transfer to processor;
The first communications interface unit, communicates for controller and receiver;
Processor, produces successively and triggers steering order and according to the extremely corresponding trigger of the position of wheel sequential delivery of default coupling, the position of wheel of received ID code and corresponding transmitter thereof transferred to receiver and store;
Described trigger is connected with controller respectively, and corresponding one by one with transmitter, according to triggering steering order, triggers corresponding transmitter transmission ID code to receiving element.
As preferably, described the first communications interface unit is CAN Bus Interface Unit/K Bus Interface Unit/LIN Bus Interface Unit.
As preferably, described trigger comprises the second communication interface unit for being connected with controller, and described second communication interface unit is CAN Bus Interface Unit/K Bus Interface Unit/LIN Bus Interface Unit.
As preferably, described trigger also comprises the low-frequency trigger that triggers transmitter for generation of low frequency trigger pip.
As preferably, described receiving element is rf receiver unit.
Another object of the present invention is to provide a kind of matching process of tire pressure monitoring system.Specifically be achieved through the following technical solutions: a kind of matching process of tire pressure monitoring system, preset the position of wheel of coupling sequentially, trigger is corresponding one by one with transmitter, specifically comprise the following steps:
By Input Control Element Input matching sign on, arrive processor;
Processor produces triggering steering order successively, and according to the extremely corresponding trigger of the position of wheel sequential delivery of default coupling;
Trigger triggers corresponding transmitter transmission ID code to receiving element according to triggering steering order;
Receiving element receives the ID code that transmitter sends, and transfers to processor;
Processor transfers to receiver by the position of wheel of received ID code and corresponding transmitter thereof and stores.
As preferably, described processor communicates by CAN bus/K bus/LIN bus and receiver.
As preferably, described processor communicates by CAN bus/K bus/LIN bus and trigger.
As preferably, described trigger triggers corresponding transmitter with low frequency triggering mode.
As preferably, described transmitter sends ID code to receiving element in radio communication mode.
The present invention has the following advantages and beneficial effect compared to existing technology:
(1) the present invention is in the position of wheel of storage unit preset matching order, and arrive processor by Input Control Element Input matching sign on, described processor produce successively trigger steering order and according to the position of wheel sequential delivery of default coupling to corresponding trigger, described trigger triggers corresponding transmitter according to triggering steering order and sends its ID code to receiving element, receiving element transfers to controller by received ID code, controller transfers to receiver by the position of wheel of received ID code and corresponding transmitter thereof and stores, realize the coupling of TPMS, matching speed is fast, accuracy rate is high, coupling cost is low, while being applied on car load factory car load assembly line, tire pressure monitoring system be mated, greatly improve matching efficiency, reduce coupling cost.
(2) controller is connected with trigger and receiver by CAN bus interface, does not need to revise the structure of receiver and transmitter in TPMS, realizes simple and conveniently, further reduces coupling cost.
(3) described trigger and transmitter adopt LF communication mode, and described transmitter and receiver module adopt radio communication mode, reduce wiring, further reduce coupling cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the matching unit of tire pressure monitoring system in embodiment;
Fig. 2 is the matching process process flow diagram of tire pressure monitoring system in embodiment.
Embodiment
The coupling of TPMS system of four-wheel automobile of take is below example, and by matching unit provided by the invention and method, the practical application of the coupling station on car load factory car load assembly line describes.But this matching unit is applicable to the independent of user vehicle to be used and Automobile Service Dian Deng place.
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1, a kind of matching unit of tire pressure monitoring system, comprise a controller and 4 triggers (left front trigger, right front trigger, left back trigger, right back trigger), described trigger is connected with controller respectively, and corresponding one by one with 4 transmitters (left front transmitter, right front transmitter, left back transmitter, right back transmitter) of tire, described controller comprises:
Storage unit, for storing the position of wheel order (as: left front → right front → left back → right back) of coupling.
Input Control Element, arrives processor for Input matching sign on.
Rf receiver unit, the ID code sending for receiving transmitter, and transfer to processor.
The first communications interface unit, adopts CAN Bus Interface Unit in the present embodiment, for controller and trigger and receiver, communicates.The receiver of existing TPMS is connected by CAN bus with the OBD mouth of automobile, therefore the CAN Bus Interface Unit of controller only need be connected with the OBD mouth of automobile by CAN bus, can realize controller is connected with the CAN bus of receiver, do not need to revise receiver architecture in TPMS, realize simple and conveniently, cost is low.
Processor, according to the coupling sign on of Input Control Element input, produce successively and trigger steering order and sequentially pass through CAN bus transfer to corresponding trigger according to the position of wheel of default coupling, store by CAN bus transfer to receiver in the ID code that rf receiver unit is received and the position of wheel of corresponding transmitter thereof.
Described trigger comprises low-frequency trigger and second communication interface unit, described second communication interface unit is CAN Bus Interface Unit, receive the triggering steering order of the first communications interface unit transmission of controller, described low-frequency trigger triggers its corresponding transmitter transmission ID code to rf receiver unit according to triggering steering order generation low frequency trigger pip.
Described the first communications interface unit, second communication interface unit can also be K Bus Interface Unit or LIN Bus Interface Unit.Institute's controller is PC.
The application of above-mentioned matching unit does not need to revise the inner structure of receiver and transmitter, realizes simple and conveniently, and cost is low.
As shown in Figure 2, a kind of matching process of the matching unit based on above-mentioned tire pressure monitoring system, preset the position of wheel order (as: left front → right front → left back → right back) of coupling, trigger (left front trigger, right front trigger, left back trigger, right back trigger) is corresponding one by one with transmitter (left front transmitter, right front transmitter, left back transmitter, right back transmitter), specifically comprise the following steps:
S101 arrives processor by Input Control Element Input matching sign on.
S102 processor produces and triggers steering order, and sequentially passes through CAN bus transfer to corresponding trigger according to the position of wheel of default coupling.According to coupling sign on, generation triggers steering order to the matched-field processors in the first position of wheel, and the matched-field processors in other position of wheels produces triggering steering order according to judging coupling unfinished state.
S103 trigger triggers corresponding transmitter according to received triggering steering order by low frequency triggering mode and sends its ID code to rf receiver unit.
S104 rf receiver unit receives the ID code that transmitter sends, and transfers to processor.
S105 processor transfers to receiver by CAN bus by the position of wheel of received ID code and corresponding transmitter thereof and stores.
S106 receiver is stored in the position of wheel of received ID code and corresponding transmitter thereof in EEPROM, and the information of returning to that the match is successful is to processor.
Information that S107 processor receives that the match is successful, judges whether mate, if complete coupling end, otherwise returns to step S102, carries out the coupling in next position of wheel.Judge whether whether the condition of having mated can equate with the number of tire to be matched for the number in the position of wheel that the match is successful or whether the position of wheel of last coupling is last position of wheel in the matching order in position of wheel.
In above-mentioned matching process, the process of obtaining and storing of ID code is controlled by controller, does not need artificial participation, and matching speed is fast, and accuracy rate is high.
In addition, can also utilize the matching unit of realizing above-mentioned TPMS, by Input Control Element, input the information such as vehicle identification code (VIN code) of automobile, and by controller, the information such as the vehicle identification code of automobile (VIN code) are kept in the EEPROM of receiver, simplify operation and the flow process of car load factory car load assembly line, reduce assembly cost.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. a matching unit for tire pressure monitoring system, is characterized in that, comprises a controller and trigger, and described controller comprises:
Storage unit, for storing the position of wheel order of coupling;
Input Control Element, arrives processor for Input matching sign on;
Receiving element, the ID code sending for receiving transmitter, and transfer to processor;
The first communications interface unit, communicates for controller and receiver;
Processor, produces successively and triggers steering order and according to the extremely corresponding trigger of the position of wheel sequential delivery of default coupling, the position of wheel of received ID code and corresponding transmitter thereof transferred to receiver and store;
Described trigger is connected with controller respectively, and corresponding one by one with transmitter, according to triggering steering order, triggers corresponding transmitter transmission ID code to receiving element.
2. the matching unit of tire pressure monitoring system according to claim 1, is characterized in that: described the first communications interface unit is CAN Bus Interface Unit/K Bus Interface Unit/LIN Bus Interface Unit.
3. the matching unit of tire pressure monitoring system according to claim 2, it is characterized in that: described trigger comprises the second communication interface unit for being connected with controller, described second communication interface unit is CAN Bus Interface Unit/K Bus Interface Unit/LIN Bus Interface Unit.
4. the matching unit of tire pressure monitoring system according to claim 3, is characterized in that: described trigger also comprises the low-frequency trigger that triggers transmitter for generation of low frequency trigger pip.
5. according to the matching unit of the tire pressure monitoring system described in claim 1 to 4 any one, it is characterized in that: described receiving element is rf receiver unit.
6. a matching process for tire pressure monitoring system, is characterized in that, presets the position of wheel order of coupling, and trigger is corresponding one by one with transmitter, specifically comprises the following steps:
By Input Control Element Input matching sign on, arrive processor;
Processor produces triggering steering order successively, and according to the extremely corresponding trigger of the position of wheel sequential delivery of default coupling;
Trigger triggers corresponding transmitter transmission ID code to receiving element according to triggering steering order;
Receiving element receives the ID code that transmitter sends, and transfers to processor;
Processor transfers to receiver by the position of wheel of received ID code and corresponding transmitter thereof and stores.
7. the matching unit of tire pressure monitoring system according to claim 6, is characterized in that: described processor communicates by CAN bus/K bus/LIN bus and receiver.
8. the matching unit of tire pressure monitoring system according to claim 7, is characterized in that: described processor communicates by CAN bus/K bus/LIN bus and trigger.
9. the matching unit of tire pressure monitoring system according to claim 8, is characterized in that: described trigger triggers corresponding transmitter with low frequency triggering mode.
10. according to the matching unit of the tire pressure monitoring system described in claim 6 to 9 any one, it is characterized in that: described transmitter sends ID code to receiving element in radio communication mode.
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| CN201310423006.5A CN103513649A (en) | 2013-09-16 | 2013-09-16 | Device and method for being matched with TPMS |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103144503A (en) * | 2013-03-28 | 2013-06-12 | 苏州驶安特汽车电子有限公司 | Production line-based automatic match tire pressure sensor information system and match method |
| CN104249610A (en) * | 2014-09-09 | 2014-12-31 | 南京泰晟科技实业有限公司 | Automatic addressing apparatus of tire-pressure monitoring sensor |
| TWI648177B (en) * | 2017-12-29 | 2019-01-21 | 系統電子工業股份有限公司 | Test method for burning tire pressure sensor |
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Patent Citations (6)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103144503A (en) * | 2013-03-28 | 2013-06-12 | 苏州驶安特汽车电子有限公司 | Production line-based automatic match tire pressure sensor information system and match method |
| CN104249610A (en) * | 2014-09-09 | 2014-12-31 | 南京泰晟科技实业有限公司 | Automatic addressing apparatus of tire-pressure monitoring sensor |
| TWI648177B (en) * | 2017-12-29 | 2019-01-21 | 系統電子工業股份有限公司 | Test method for burning tire pressure sensor |
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Application publication date: 20140115 |