CN109501719A - A kind of system and method for avoiding onboard wireless charging interference Intelligent key from detecting - Google Patents
A kind of system and method for avoiding onboard wireless charging interference Intelligent key from detecting Download PDFInfo
- Publication number
- CN109501719A CN109501719A CN201811290122.3A CN201811290122A CN109501719A CN 109501719 A CN109501719 A CN 109501719A CN 201811290122 A CN201811290122 A CN 201811290122A CN 109501719 A CN109501719 A CN 109501719A
- Authority
- CN
- China
- Prior art keywords
- wireless charging
- charging module
- intelligent key
- controller
- power supply
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
- B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The present embodiments relate to a kind of for avoiding the system and method for onboard wireless charging interference Intelligent key detection.The system includes: antenna, can be with the detection signal of Intelligent key of first radio frequency emissions to detect vehicle；Wireless charging module can charge by electronic equipment of the second radio frequency；And controller, it is coupled to wireless charging module and antenna, in response to receiving the first trigger signal to trigger antenna transmitting detection signal, disconnects the coupling with wireless charging module.The embodiment of the present invention reduces the co-channel interference of keyless systems and wireless charging function, improves vehicle safety performance and good user experience while not influencing user using onboard wireless charge function.
Description
Technical field
Present invention relates in general to vehicle application fields, and in particular to one kind is for avoiding onboard wireless charging interference intelligence
The system and method for key detection.
Background technique
With the progress of automobile function demand growth and technology, automobile application starts to develop to intelligent direction.Current nothing
Key enters the innovation hot spot that (PKE, Passive Keyless Entry) becomes research and apply.Keyless access system benefit
Communication connection is established between Intelligent key and auto communication unit with technology for radio frequency, after bidirectional identity authentication,
Control the operation such as switch for vehicle door lock.
At the same time, wireless charging device is also configured in usual vehicle, is mentioned with the various portable electronic devices to user
For wireless charging function.Wireless charging utilizes electromagnetic induction, generates the electromagnetic signal of certain frequency, thus when wireless charging works
When, the interference and keyless systems Antenna Operation frequency range that wireless charging generates are close, lead to not scanning to Intelligent key, influence
The work of keyless systems.
Summary of the invention
In view of the above-mentioned problems, the embodiment of the present invention provides one kind for avoiding onboard wireless charging interference Intelligent key inspection
The system and method for survey solves the problems, such as the frequency interferences of keyless systems Yu onboard wireless charge function.
In the first aspect of the present invention, provides and a kind of be for avoid onboard wireless charging interference Intelligent key detection
System.The system includes: antenna, can be believed with the detection of Intelligent key of first radio frequency emissions to detect vehicle
Number；Wireless charging module can charge by electronic equipment of the second radio frequency；And controller, it is coupled to wireless charging
Electric module and antenna disconnect and wireless in response to receiving the first trigger signal to trigger antenna transmitting detection signal
The coupling of charging module.
In certain embodiments, system further include: vehicle power supply；And relay, it is coupled to vehicle power supply and controller；
Wherein, controller enables relay closure and and wireless charging in response to triggering the second trigger signal of vehicle power supply power supply
Module is connected to provide electric energy to wireless charging module, and is made in response to the third trigger signal of triggering vehicle power supply power-off
Relay disconnects and disconnects the coupling with wireless charging module.
In certain embodiments, system further include: trigger unit is coupled with controller, to the first letter of controller transmission
Number triggering；Wherein controller is based on the first trigger signal driving antenna transmitting detection signal, to be scanned to Intelligent key
It searches.
In certain embodiments, controller is additionally in response to Intelligent key and is found and connects the coupling with wireless charging module
It connects.
In certain embodiments, controller includes electronic control unit for vehicles.Electronic control unit for vehicles includes that control is drawn
Foot, control pin are connect with wireless charging module.
In the second aspect of the present invention, provide a kind of for avoiding the side of onboard wireless charging interference Intelligent key detection
Method.This method comprises: search the first trigger signal of Intelligent key in response to receiving driver sweep, controller and wireless is disconnected
The coupling of charging module；Drive the detection signal of Intelligent key of the antenna with the first radio frequency emissions to detect vehicle；
And in response to finding Intelligent key, connect the coupling with wireless charging module, so as to wireless charging module is in can be with
Second radio frequency is the standby mode of electronic equipment charging.
In certain embodiments, method further include: in response to receiving the second trigger signal of triggering vehicle power supply power supply,
The enabled relay for being coupled to vehicle power supply is closed and connects with wireless charging module to provide electric energy to wireless charging module；
And the third trigger signal in response to receiving triggering vehicle power supply power-off, disconnect relay, and disconnection and wireless charging
The coupling of electric module.
Scheme provided in an embodiment of the present invention reduces while not influencing user using onboard wireless charge function
The co-channel interference of keyless systems and wireless charging function improves vehicle safety performance and good user experience.
Detailed description of the invention
Fig. 1 shows the system for avoiding onboard wireless charging interference Intelligent key detection of embodiment according to the present invention
Schematic block diagram；And
Fig. 2 shows the methods for avoiding onboard wireless charging interference Intelligent key detection of embodiment according to the present invention
Flow chart.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
As described herein, term " includes " and its various variants are construed as open-ended term, it means that " packet
It includes but is not limited to ".Term "based" is construed as " being based at least partially on ".Term " one embodiment " it is understood that
For " at least one embodiment ".Term " another embodiment " is construed as " at least one other embodiment ".
As previously mentioned, the existing automobile with keyless access system usually also provides the various electronic equipments to user
Carry out the function of wireless charging.In general, wireless charging system and keyless systems are two mutually independent systems, and wireless
Charging system is placed in relay rear end, and after vehicle powers on, wireless charging module is in standby.Work as keyless systems
When driver sweep key, the two generates co-channel interference, causes not starting or can not be latched, therefore, how to avoid wireless charging
Become one of the critical issue of keyless systems application to the interference of keyless systems.
The embodiment of the present invention is further described with reference to the accompanying drawing.Fig. 1 shows use according to an embodiment of the present invention
In the schematic block diagram for the system 100 for avoiding onboard wireless charging interference Intelligent key detection.
System 100 includes controller, is the central control unit of system 100, with antenna 120, relay 130, triggering
Component 160 couples.In the present embodiment, controller can be automobile-used electronic control unit (ECU, Electronic
Control Unit)110。
Antenna 120 is used to receive the wireless signal that Intelligent key 140 is emitted and emits wireless communication to Intelligent key 140
Number.Relay 130 and automobile power source (being shown as BAT+) couple, and when full-vehicle control powers on, ECU 110 controls relay 130
It is attracted, to be connected with automobile power source.
When user uses keyless entry function, situations such as keyless entry, unblocking without key starting or induction type
Under, the needs of antenna 120 are actuated to scanning Intelligent key 140.According to embodiments of the present invention, trigger unit 160 is grasped according to automobile
Make function and generate trigger signal, which will promote ECU 110 to drive antenna 120.Here, trigger unit 160 can be with
Including electronic steering column lock (ESCL, Electrical Steering Colum Lock), start button, boot switch or
One or more of motor vehicle assemblies such as brake.
Specifically, working as, PKE car locking is successful or driver presses automobile starting switch, presses boot switch, tramples
Under the scenes such as brake, triggering of the ECU 110 by corresponding trigger unit 160, driving antenna 120 emits penetrating for certain frequency
Frequency signal searches Intelligent key 140 to scan.On the other hand, Intelligent key 140 can ring scanning search signal
It answers, sends response signal to ECU 110, ECU 110 judges whether to search legal key in turn, so as to hold to automobile
Row corresponding operation.
When configuration of automobiles has wireless charging function, wireless charging module generally includes power supply coil, using certain nothing
Line electric frequency charges to various energy storage devices (such as various portable electronic devices) with induced electricity magnetic wave.Existing automobile
In system, the radio frequency of wireless charging exists with the radio frequency of scanning Intelligent key to be overlapped, and wireless charging system
It is two mutually independent systems with keyless systems, after vehicle powers on, wireless charging module is in standby.This is produced
The raw co-channel interference to Intelligent key scanning process, leads to not normally scan Intelligent key, and then seriously affect vapour
The corresponding operating of vehicle.
Different from the design of existing keyless access system, in the system 100 of the embodiment of the present invention, ECU 110 is arranged
The interface that being and not being line charging module 150 docks.By the interface, ECU 110 controls the work of wireless charging module 150.?
In one embodiment, which can be a pin of 110 chip of ECU, be shown in figure as BAT+ pin.
According to an embodiment of the invention, keyless systems provide wireless charging module power supply.When ECU 110 is triggered signal
When triggering and controlling vehicle and power on, ECU 110 controls relay 130 and the output of BAT+ pin simultaneously.On the other hand, work as ECU
110 when being triggered signal triggering and controlling under vehicle electric, and ECU 110 simultaneously switches off relay 130 and BAT+ pin.
When vehicle driver sweep key, such as the success of PKE car locking, driver press automobile starting switch, press standby
Case switch is trampled under the scenes such as brake, corresponding trigger unit 160 such as electronic steering column lock, start button, boot
Switch or the transmission trigger signal such as brake are to ECU 110, and ECU 110 is with disconnecting BAT+ pin.
At the same time, ECU 110 is based on the trigger signal and drives antenna 120 with a radio frequency emissions to detect
The detection signal of Intelligent key 140.By this method, ECU 110 starts the scanning communication process with Intelligent key 140.Work as scanning
After finding Intelligent key 140, ECU 110 exports control BAT+ pin again and draws high, and promotes the work again of wireless charging module 150
Make.
Fig. 2 shows the methods according to an embodiment of the present invention for avoiding onboard wireless charging interference Intelligent key detection
200 flow chart.210, in response to receiving the first trigger signal of detection trigger Intelligent key, controller and wireless is disconnected
The coupling of charging module.In one embodiment, once ECU 110 receives the triggering letter that Intelligent key is searched in driver sweep
Number, that is, disconnect the connection with wireless charging module 150.According to the Functional Design of automobile, which be can be in no key
Into, unblock etc. without key starting or induction type whens as caused by corresponding automobile component.
220, the detection signal of Intelligent key of the antenna with the first radio frequency emissions to detect vehicle is driven.Root
According to the embodiment of the present invention, ECU 110 searches the trigger signal of Intelligent key based on driver sweep and drives antenna 120, so that
Antenna 120 detects signal with the radio frequency emissions for detecting Intelligent key 140.Correspondingly, Intelligent key 140 can feed back sound
Thus induction signal, ECU 110 judge whether to find Intelligent key 140.
230, in response to detecting Intelligent key, the coupling with wireless charging module is connected, so as to wireless charging module
In the standby mode that can be charged using the second radio frequency as electronic equipment.Once according to an embodiment of the invention, ECU
110 determining detected find Intelligent key 140, can control wireless charging module 150 at this time and restart work.
In one embodiment, in order to guarantee the normal use of wireless charging function, when ECU 110 is triggered signal triggering
And when controlling vehicle and powering on, ECU 110 controls relay 130 and the output of BAT+ pin simultaneously.At this point, wireless charging module 150
It is in standby, charge function can be provided for electronic equipment.On the other hand, when ECU 110 be triggered signal triggering and control
When electric under vehicle processed, ECU 110 simultaneously switches off relay 130 and BAT+ pin.At this point, vehicle powers off, wireless charging module 150
Stop providing electric energy.
In scheme provided in an embodiment of the present invention, directly powered by electronic control unit to wireless charging module,
And relay working condition and Intelligent key scanning and wireless charging process are controlled, avoid wireless charging from scanning Intelligent key
Generated interference improves user experience and automobile to reduce wireless charging module to the low-frequency disturbance of keyless systems
The safety of driving.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (8)
1. a kind of system for avoiding onboard wireless charging interference Intelligent key detection characterized by comprising
Antenna, can be with the detection signal of Intelligent key of first radio frequency emissions to detect vehicle；
Wireless charging module can charge by electronic equipment of the second radio frequency；And
Controller is coupled to the wireless charging module and the antenna, sends out in response to receiving to trigger the antenna
The first trigger signal for penetrating the detection signal, disconnects the coupling with the wireless charging module.
2. system according to claim 1, which is characterized in that further include:
Vehicle power supply；And
Relay is coupled to the vehicle power supply and the controller；
Wherein, the controller enables the relay and closes in response to triggering the second trigger signal of the vehicle power supply power supply
Merge and connect with the wireless charging module to provide electric energy to the wireless charging module, and in response to triggering the vehicle
The third trigger signal of power cut-off and disconnect the relay and disconnect the coupling with the wireless charging module.
3. system according to claim 1, which is characterized in that further include:
Trigger unit is coupled with the controller, transmits first trigger signal to the controller；The wherein control
Device is based on first trigger signal and the antenna is driven to emit the detection signal, to detect the Intelligent key.
4. system according to claim 1, which is characterized in that the controller is connected after the Intelligent key is found
With the coupling of the wireless charging module.
5. system according to claim 1, which is characterized in that the controller includes electronic control unit for vehicles.
6. system according to claim 5, which is characterized in that the electronic control unit for vehicles includes control pin, institute
Control pin is stated to connect with the wireless charging module.
7. a kind of method for avoiding onboard wireless charging interference Intelligent key detection characterized by comprising
In response to receiving the first trigger signal of detection trigger Intelligent key, the coupling of controller and wireless charging module is disconnected
It connects；
Drive the detection signal of Intelligent key of the antenna with the first radio frequency emissions to detect vehicle；And
In response to detecting the Intelligent key, the coupling with the wireless charging module is connected, so as to the wireless charging mould
Block is in the standby mode that can be charged using the second radio frequency as electronic equipment.
8. the method according to the description of claim 7 is characterized in that further include:
In response to receiving the second trigger signal of triggering vehicle power supply power supply, the enabled relay closure for being coupled to vehicle power supply
And it connects with the wireless charging module to provide electric energy to the wireless charging module；And
In response to receiving the third trigger signal of triggering vehicle power supply power-off, disconnect the relay, and disconnection and institute
State the coupling of wireless charging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290122.3A CN109501719A (en) | 2018-10-31 | 2018-10-31 | A kind of system and method for avoiding onboard wireless charging interference Intelligent key from detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290122.3A CN109501719A (en) | 2018-10-31 | 2018-10-31 | A kind of system and method for avoiding onboard wireless charging interference Intelligent key from detecting |
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| Publication Number | Publication Date |
|---|---|
| CN109501719A true CN109501719A (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811290122.3A Pending CN109501719A (en) | 2018-10-31 | 2018-10-31 | A kind of system and method for avoiding onboard wireless charging interference Intelligent key from detecting |
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| CN (1) | CN109501719A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111731226A (en) * | 2020-07-23 | 2020-10-02 | 本田汽车用品(广东)有限公司 | Vehicle-mounted wireless charging device and control method thereof |
| CN112165135A (en) * | 2020-09-30 | 2021-01-01 | 重庆长安汽车股份有限公司 | Method for realizing interconnection between wireless charging module and vehicle machine and storage medium |
| CN112863151A (en) * | 2021-01-28 | 2021-05-28 | 大陆汽车电子(长春)有限公司 | Method and system for preventing intelligent key from being damaged by vehicle-mounted wireless charger |
| CN115021362A (en) * | 2022-06-24 | 2022-09-06 | 一汽奔腾轿车有限公司 | Control system and control method for mobile phone wireless charging device for automobile |
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