CN215398581U - PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference - Google Patents
PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference Download PDFInfo
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- CN215398581U CN215398581U CN202121139803.7U CN202121139803U CN215398581U CN 215398581 U CN215398581 U CN 215398581U CN 202121139803 U CN202121139803 U CN 202121139803U CN 215398581 U CN215398581 U CN 215398581U
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Abstract
The utility model discloses a PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference, which comprises a PEPS controller and a wireless charger, wherein the PEPS controller is used for controlling the PEPS system, the wireless charger is connected with the PEPS controller through a hard line or an LIN bus, the PEPS controller is used for searching an intelligent key through a low-frequency signal after receiving a trigger signal, judging whether key authentication passes according to a high-frequency signal fed back by the intelligent key, and sending a charging closing signal to the wireless charger after key authentication fails to reach a preset number of times; the wireless charger is used for closing charging after receiving a signal for closing charging, the charging closing time is preset time, and the charging is started after the charging is closed for the preset time. The wireless charger and the PEPS controller are connected by adopting a hard wire or an LIN bus, so that the cost is lower; meanwhile, the number of times of closing wireless charging can be reduced, and the wireless charging experience effect is improved.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference.
Background
PEPS systems (car keyless entry systems) and wireless chargers are increasingly used in cars. The frequency of a signal transmitted by a low-frequency antenna of the PEPS system of the automobile is 125KHz, and the working frequency of the MP-A13 of the wireless charger is 120 +/-8 KHz (taking MP-A13 as an example). Since the radio wave frequencies of the two electric devices are substantially the same, the smart key is interfered by the wireless charger when the smart key approaches the wireless charger. In order to solve the problem that the intelligent key is interfered, the existing method is that when the PEPS system searches the intelligent key, the PEPS system can close the wireless charger for 1-2 seconds to eliminate interference, but the method can influence the experience effect of wireless charging; the chinese patent document No. CN2018114931914 discloses a control system and a control method for eliminating interference of vehicle-mounted wireless charging on a PEPS, in the technology, a CAN bus is used to connect the PEPS system and the wireless charger, the cost is high, in addition, the control method is that the PEPS closes the wireless charger if no intelligent key is searched in a certain time period, the time period is short, if the system runs suddenly for a short time or other occasional external interference causes the key authentication time to be prolonged, so that the wireless charger is closed without searching for the intelligent key in the time period, and the effect of wireless charging experience is also influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the PEPS and key pairing system which is low in cost, can reduce the influence on wireless charging experience and is used for avoiding vehicle-mounted wireless charging interference.
A PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference comprises a PEPS controller and a wireless charger, wherein the PEPS controller is used for controlling the PEPS system, the wireless charger is connected with the PEPS controller through a hard line or an LIN bus, the PEPS controller is used for searching an intelligent key through a low-frequency signal after receiving a trigger signal, judging whether key authentication passes according to a high-frequency signal fed back by the intelligent key, and sending a charging closing signal to the wireless charger after key authentication fails to reach preset times; the wireless charger is used for closing charging after receiving a signal for closing charging, the charging closing time is preset time, and the charging is started after the charging is closed for the preset time.
The PEPS controller comprises a base station control unit, a low-frequency driving module and a high-frequency receiving module which are connected with the base station control unit, wherein the wireless charger is connected with the base station control unit through a hard line or LIN bus, the base station control unit is used for sending a signal for searching an intelligent key to the low-frequency driving module after receiving a trigger signal, carrying out key authentication judgment according to a high-frequency signal fed back by the high-frequency receiving module, and sending a charging closing signal to the wireless charger after the key authentication fails to reach a preset number of times; the low-frequency driving module is used for receiving the searching signal of the base station control unit and then sending a driving signal to the low-frequency antenna; and the high-frequency receiving module is used for receiving the high-frequency signal fed back by the intelligent key and sending the high-frequency signal to the base station control unit.
In a further improved technical scheme, the PEPS controller is used for 2 or 3 times of preset times of key authentication failure.
According to the further improved technical scheme, the PEPS controller is further used for sending a charging starting signal to the wireless charger after the wireless charger is closed for a preset time period, and the wireless charger starts charging after receiving the charging starting signal.
According to the technical scheme, the preset time for charging shutdown is arranged in the wireless charger, and the wireless charger automatically starts charging after the preset time is shut down.
According to the further improved technical scheme, the preset time for closing the charging is not more than 2 seconds.
The wireless charger and the PEPS controller are connected by adopting a hard wire or LIN bus, and compared with the prior art which adopts a CAN bus connection mode, the cost is lower; meanwhile, the PEPS controller sends a charging closing signal to the wireless charger after the key authentication fails to reach the preset times, after the system runs suddenly and temporarily and is blocked or other temporary interference happens outside, the key authentication is continuously completed without closing the wireless charging, compared with the mode that the wireless charging is directly closed or closed within a certain time period in the searching process in the prior art, the wireless charging closing times can be reduced, and the wireless charging experience effect is improved.
Drawings
FIG. 1 is a system schematic of the present invention;
fig. 2 is a flow chart of the operation of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.
In a preferred embodiment, referring to fig. 1, a system for pairing a PEPS and a key for avoiding vehicle-mounted wireless charging interference comprises a PEPS controller and a wireless charger, wherein the PEPS controller is used for controlling the PEPS system. In this embodiment, the wireless charger is connected with the PEPS controller through a hard wire, the wireless charger may also be connected with the PEPS controller through an LIN bus, the hard wire connection and the LIN bus connection can meet the control requirement, and the prices of the hard wire connection and the LIN bus connection are both low, so that the BOM cost of hardware is reduced. In the embodiment, the PEPS controller is configured to search the smart key through a low-frequency signal after receiving the trigger signal, determine whether the key authentication passes according to a high-frequency signal fed back by the smart key, and send a signal for closing charging to the wireless charger after the key authentication fails for 2 times; the wireless charger is used for closing charging after receiving a signal for closing charging, the charging closing time is preset 1 second, and the charging is started after the charging is closed for a preset time.
In the above embodiment, the preset number of times of key authentication failure is 2 times, or 3 times, and different numbers are suitable for systems with different search times. On the basis, the preset time for closing the charging can also be set according to the speed of system searching, if the system searching speed is higher, the preset time can be properly prolonged, otherwise, the preset time can be properly reduced. Preferably the duration is no more than 2 seconds.
In the above embodiment, the PEPS controller includes a base station control unit, a low frequency driving module and a high frequency receiving module, where the low frequency driving module and the high frequency receiving module are both connected to the base station control unit and communicate with the base station control unit. In addition, the wireless charger is connected with the base station control unit through a hard line or an LIN bus, the base station control unit is mainly used for sending a signal for searching an intelligent key to the low-frequency driving module after receiving the trigger signal, carrying out key authentication judgment according to a high-frequency signal fed back by the high-frequency receiving module, and sending a signal for closing charging to the wireless charger after the key authentication failure reaches the preset 2 times or 3 times; the low-frequency driving module is used for receiving the searching signal of the base station control unit and then sending a driving signal to the low-frequency antenna; the high-frequency receiving module is used for receiving the high-frequency signal fed back by the intelligent key and sending the high-frequency signal to the base station control unit. The base station control unit is equivalent to a processing center module, and is used for respectively processing data coming and going between the low-frequency driving module and the high-frequency receiving module and controlling the closing of the wireless charger.
For the closing and opening of the wireless charger, two modes can be adopted, embodiment one: the PEPS controller sends an opening signal to the wireless charger, specifically, the wireless charger sends the opening signal after being closed for a preset time, and the wireless charger starts charging after receiving the charging opening signal. In the embodiment, the wireless charger is controlled to be turned on and off by the PEPS controller in a unified manner, so that the wireless charger is suitable for the PEPS controller with relatively strong functions, and is convenient for centralized and unified management of all modules.
Example two: and a program for closing the charging with preset time duration is arranged in the wireless charger, the wireless charger starts the program after receiving a closing signal of the PEPS controller, and the built-in program controls the wireless charger to automatically start the charging after the time duration. The mode makes the control of the PEPS controller simpler, and only a signal for closing the charging is needed to be sent.
As shown in fig. 2, when the system works, the base station control unit first detects whether there is a PEPS pairing trigger signal, and if not, performs other program processes; if yes, the intelligent key is searched. When in searching, the base station control unit sends a searching signal to the low-frequency driving module, the low-frequency driving module drives the low-frequency antenna to send a low-frequency signal to start searching for the intelligent key, the intelligent key is awakened after receiving the low-frequency signal, required authentication information is sent out through the high-frequency signal, the high-frequency antenna of the PEPS receives the high-frequency signal of the authentication information, the high-frequency receiving module sends the high-frequency signal to the base station control unit, the base station control unit carries out key authentication judgment, and if the judgment is passed, other program processes are carried out; if the first authentication fails, the intelligent key is continuously searched, and if the second authentication fails, the base station control unit sends a signal for closing charging to the wireless charger and simultaneously continuously searches the intelligent key, and the process is repeated until the key authentication finally passes.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "arranged," and the like are to be construed broadly and may, for example, be connected in an arrangement, detachably connected, or integrated; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
Claims (6)
1. A PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference comprises a PEPS controller and a wireless charger, wherein the PEPS controller is used for controlling the PEPS system, and the PEPS and key pairing system is characterized in that: the wireless charger is connected with the PEPS controller through a hard wire or a LIN bus, and
the PEPS controller is used for searching the intelligent key through a low-frequency signal after receiving the trigger signal, judging whether the key authentication passes according to a high-frequency signal fed back by the intelligent key, and sending a charging closing signal to the wireless charger after the key authentication fails to reach a preset number of times;
the wireless charger is used for closing charging after receiving a signal for closing charging, the charging closing time is preset time, and the charging is started after the charging is closed for the preset time.
2. The PEPS and key pairing system for avoiding the vehicle-mounted wireless charging interference as claimed in claim 1, wherein: the PEPS controller comprises a base station control unit, a low-frequency driving module and a high-frequency receiving module which are connected with the base station control unit, the wireless charger is connected with the base station control unit through a hard wire or a LIN bus, and
the base station control unit is used for sending a signal for searching an intelligent key to the low-frequency driving module after receiving the trigger signal, carrying out key authentication judgment according to the high-frequency signal fed back by the high-frequency receiving module, and sending a charging closing signal to the wireless charger after the key authentication fails to reach a preset number of times;
the low-frequency driving module is used for receiving the searching signal of the base station control unit and then sending a driving signal to the low-frequency antenna;
and the high-frequency receiving module is used for receiving the high-frequency signal fed back by the intelligent key and sending the high-frequency signal to the base station control unit.
3. The PEPS and key pairing system for avoiding the vehicle-mounted wireless charging interference as claimed in claim 1, wherein: the PEPS controller is used for 2 or 3 times when the key authentication fails.
4. The PEPS and key pairing system for avoiding the vehicle-mounted wireless charging interference as claimed in claim 1, wherein: the PEPS controller is also used for sending a charging starting signal to the wireless charger after the wireless charger is closed for a preset time, and the wireless charger starts charging after receiving the charging starting signal.
5. The PEPS and key pairing system for avoiding the vehicle-mounted wireless charging interference as claimed in claim 1, wherein: the preset time for charging shutdown is arranged in the wireless charger, and the wireless charger automatically starts charging after the preset time is shut down.
6. The PEPS and key pairing system for avoiding the vehicle-mounted wireless charging interference as claimed in claim 1, wherein: the preset time for turning off the charging is not more than 2 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121139803.7U CN215398581U (en) | 2021-05-26 | 2021-05-26 | PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference |
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| CN202121139803.7U CN215398581U (en) | 2021-05-26 | 2021-05-26 | PEPS and key pairing system for avoiding vehicle-mounted wireless charging interference |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042744A (en) * | 2022-03-30 | 2022-09-13 | 东风汽车集团股份有限公司 | Method for controlling function of prompting that key intervening in wireless charging function is not in vehicle |
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2021
- 2021-05-26 CN CN202121139803.7U patent/CN215398581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042744A (en) * | 2022-03-30 | 2022-09-13 | 东风汽车集团股份有限公司 | Method for controlling function of prompting that key intervening in wireless charging function is not in vehicle |
| CN115042744B (en) * | 2022-03-30 | 2023-04-28 | 东风汽车集团股份有限公司 | Method for controlling prompt function of key intervening in wireless charging function in car |
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