CN108109244B - PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller - Google Patents
PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller Download PDFInfo
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- CN108109244B CN108109244B CN201711463653.3A CN201711463653A CN108109244B CN 108109244 B CN108109244 B CN 108109244B CN 201711463653 A CN201711463653 A CN 201711463653A CN 108109244 B CN108109244 B CN 108109244B
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- 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
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
- G06K7/10089—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision
- G06K7/10099—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision the directional field being used for pinpointing the location of the record carrier, e.g. for finding or locating an RFID tag amongst a plurality of RFID tags, each RFID tag being associated with an object, e.g. for physically locating the RFID tagged object in a warehouse
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
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- 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
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
- G07C2009/00412—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks the transmitted data signal being encrypted
Abstract
The invention discloses a PE locking method of a PEPS controller, which comprises the following steps: the operator presses the PE button, the PEPS controller recognizes the switch signal and knows the position of the pressed switch; the controller controls four low-frequency antennas at the front, middle and back parts in the vehicle and corresponding door handles to continuously and sequentially send positioning frame low-frequency data with antenna number information; the intelligent key records the low-frequency field intensity values of the indoor three antennas and the field intensity value of the low-frequency antenna at the door handle, and sends out the maximum one of the field intensity values of the indoor three antennas, the field intensity value of the low-frequency antenna at the door handle and the key validity data through the same frame of high-frequency data; after the controller receives the field intensity value of the high-frequency reply, the distance between the key and the indoor antenna and the distance between the low-frequency antennas at the door handles are calculated to determine whether the key is in the vehicle or not; and S5, if the key is not in the vehicle, sending a locking command of the whole vehicle, thereby realizing the function of leaving without the key. The invention has short communication time and quick response, reduces the pressure of data communication and saves the electric quantity for the key end with high requirement on low power consumption.
Description
Technical Field
The invention relates to the technical field of automobile electronics, in particular to a PE (polyethylene) locking method for a PEPS (Passive entry Passive Start) controller.
Background
Under current automotive electronics technique, when realizing the PE function under the general scheme, in order to realize that the key of the interior region of car seeks the total coverage, need use three antenna in the car, every antenna is sought once, and the rethread door handle antenna is once found at last to can satisfy the "condition of shutting the condition and be that there is not the key in the car, just so increased the process time that whole key position was confirmed. Bringing the disadvantage of unsmooth user experience.
Disclosure of Invention
The invention aims to provide a PE locking method for a PEPS controller.
The purpose of the invention is realized by the following technical scheme: a PEPS controller PE locking method comprises the following steps:
s1, an operator presses a PE button, a PEPS controller identifies a switch signal and knows the position of the pressed PE button switch;
s2, the controller controls the front, middle and back of the interior of the vehicle and four low-frequency antennas corresponding to the door handles to continuously and sequentially send positioning frame low-frequency data with antenna number information;
s3, recording the low-frequency field intensity values of the three indoor antennas and the field intensity value of the low-frequency antenna at the door handle by the intelligent key, and sending one of the three indoor antennas with the largest field intensity value, the field intensity value of the low-frequency antenna at the door handle and the key validity data through the same frame of high-frequency data;
s4, after the controller receives the field intensity value of the high-frequency reply, calculating the distance between the key and the indoor antenna and the distance between the key and the low-frequency antenna at the door handle, and comparing the actual distance of the key with the designed and calibrated distance to determine that the key is in the vehicle;
and S5, if the key is not in the vehicle, sending a locking command of the whole vehicle, thereby realizing the function of leaving without the key.
Preferably, the validity data of the key comprises an identity, ID, token of the key and random encrypted authentication information.
Preferably, the indoor antenna in step S4 refers to an antenna corresponding to the maximum field strength value.
Due to the adoption of the technical scheme, the invention has the following advantages:
according to the invention, when finding the indoor key, the indoor antenna is used for sequentially and continuously transmitting the low-frequency data, and then the door handle left front door is pressed to transmit the low-frequency PE frame data. The key end also continuously receives and records the low-frequency value, when 4 antennas are received, the received data are compared, and a current indoor maximum field intensity value and an outdoor door handle field intensity value are output through high frequency to be used for a controller to judge whether the vehicle is inside or outside.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
The drawings of the present invention are described below.
Fig. 1 is a view of the mounting position of an antenna;
fig. 2 is a schematic diagram of a PE lock finding key strategy.
The labels in the figure are:
R1 denotes the high frequency data frame returned by the key 1, R2 denotes the high frequency data frame returned by the key 2, the low frequency data frame sent by the LF antenna, and P denotes the identification filtering time for the key
Detailed Description
The invention is further illustrated by the following figures and examples.
A PEPS controller PE locking method comprises the following steps:
s1, an operator presses a PE button, a PEPS controller identifies a switch signal and knows the position of the pressed PE button switch;
s2, the controller controls the front, middle and back of the interior of the vehicle and four low-frequency antennas corresponding to the door handles to continuously and sequentially send positioning frame low-frequency data with antenna number information;
s3, recording the low-frequency field intensity values of the three indoor antennas and the field intensity value of the low-frequency antenna at the door handle by the intelligent key, and sending one of the three indoor antennas with the largest field intensity value, the field intensity value of the low-frequency antenna at the door handle and the key validity data through the same frame of high-frequency data; the validity data packet includes the ID information of the hand key and random encryption authentication information.
S4, after the controller receives the field intensity value of the high-frequency reply, calculating the distance between the key and the indoor antenna and the distance between the key and the low-frequency antenna at the door handle, and comparing the actual distance of the key with the designed and calibrated distance to determine that the key is in the vehicle;
and S5, if the key is not in the vehicle, sending a locking command of the whole vehicle, thereby realizing the function of leaving without the key.
Preferably, the indoor antenna in step S4 refers to an antenna corresponding to the maximum field strength value.
The method of the present invention is specifically described below.
The system power is in OFF state, the left front door lock state is unlocked state, and other doors are closed state. And (3) pressing a left front door handle microswitch, if the ECU of the PEPS finds a legal key in the vehicle, sending a key in-vehicle alarm signal to the instrument and the BCM, and not locking at the moment. If no legal key is in the vehicle, the ECU of the PEPS drives the driving side low frequency antenna to detect the key. If the ECU of the PEPS finds a legal key outside the left front door and the authentication is passed, the three-frame locking message is sent through the CAN bus, and if the legal key cannot be found, the operation of the microswitch of the left front door is ignored.
When finding the indoor key, the indoor antenna is used for sequentially and continuously transmitting low-frequency data, and then the door handle left front door is pressed to transmit low-frequency PE frame data. The key end also continuously receives and records the low-frequency value, when 4 antennas are received, the received data are compared, and a current indoor maximum field intensity value and an outdoor door handle field intensity value are output through high frequency to be used for a controller to judge whether the vehicle is inside or outside.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered in the protection scope of the present invention.
Claims (1)
1. A PEPS controller PE locking method is characterized by comprising the following steps:
s1, an operator presses a PE button, a PEPS controller identifies a switch signal and knows the position of the pressed PE button switch;
s2, the controller controls the front, middle and back of the interior of the vehicle and four low-frequency antennas corresponding to the door handles to continuously and sequentially send positioning frame low-frequency data with antenna number information;
s3, recording the low-frequency field intensity values of the three indoor antennas and the field intensity value of the low-frequency antenna at the door handle by the intelligent key, and sending one of the three indoor antennas with the largest field intensity value, the field intensity value of the low-frequency antenna at the door handle and the key validity data through the same frame of high-frequency data;
s4, after the controller receives the field intensity value of the high-frequency reply, calculating the distance between the key and the indoor antenna and the distance between the key and the low-frequency antenna at the door handle, and comparing the actual distance of the key with the designed and calibrated distance to determine that the key is in the vehicle;
s5, if the key is not in the vehicle, sending a locking command of the whole vehicle, so as to realize the function of leaving without the key;
when the door lock state of the left front door is an unlocked state, other doors are closed states; pressing a left front door handle microswitch, if an ECU of the PEPS finds a legal key in the vehicle, sending a 'key in vehicle alarm' signal to an instrument and a BCM, and not locking at the moment; if no legal key is in the vehicle, the ECU of the PEPS drives the low-frequency antenna at the driving side to detect the key; if the ECU of the PEPS finds a legal key outside the left front door and the authentication is passed, three frames of locking messages are sent through the CAN bus, and if the legal key cannot be found, the operation of the microswitch of the left front door is ignored;
when finding an indoor key, sequentially and continuously transmitting low-frequency data by using an indoor antenna, and then transmitting low-frequency PE frame data by pressing a left front door of a doorknob; the key end also records a low-frequency value through continuous receiving, compares received data after receiving 4 antennas, and outputs a current indoor maximum field intensity value and an outdoor door handle field intensity value through high frequency so as to enable a controller to judge whether the vehicle is inside or outside;
the validity data of the key comprises ID information and random encryption authentication information of the key;
the indoor antenna in step S4 is the antenna corresponding to the maximum field strength value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463653.3A CN108109244B (en) | 2017-12-28 | 2017-12-28 | PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463653.3A CN108109244B (en) | 2017-12-28 | 2017-12-28 | PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller |
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| Publication Number | Publication Date |
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| CN108109244A CN108109244A (en) | 2018-06-01 |
| CN108109244B true CN108109244B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711463653.3A Active CN108109244B (en) | 2017-12-28 | 2017-12-28 | PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112505623B (en) * | 2020-11-18 | 2022-07-15 | 上海科世达-华阳汽车电器有限公司 | Low-frequency calibration method of PEPS system |
| CN112959972A (en) * | 2021-03-23 | 2021-06-15 | 一汽奔腾轿车有限公司 | Positioning judgment system and method for intelligent key under mobile phone interference condition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975686A (en) * | 2012-11-23 | 2013-03-20 | 奇瑞汽车股份有限公司 | Passive entry starting system and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8571725B2 (en) * | 2009-01-29 | 2013-10-29 | Trw Automotive U.S. Llc | Apparatus for locating a vehicle electronic key |
| DE102010017493A1 (en) * | 2010-06-21 | 2011-12-22 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Key remote controller for triggering e.g. unlocking/locking functions of motor car, has control devices transmitting signal to motor car-side control device through coils that receive signals from motor car-side transmitter coils |
| US8744482B2 (en) * | 2011-03-25 | 2014-06-03 | Lear Corporation | Apparatus and method for wireless device detection |
| CN103679863B (en) * | 2012-09-25 | 2016-09-07 | 比亚迪股份有限公司 | A kind of key-free vehicle door control system and control method thereof |
| CN103178966B (en) * | 2013-03-19 | 2015-08-12 | 北京经纬恒润科技有限公司 | The KPD authentication method of vehicle and Intelligent key, vehicle base station and system |
| CN104714210A (en) * | 2013-12-17 | 2015-06-17 | 德尔福电子(苏州)有限公司 | Method for adopting four antennae to perform key positioning |
| CN203786290U (en) * | 2013-12-17 | 2014-08-20 | 德尔福电子(苏州)有限公司 | A key positioner based on four antennas |
| CN105984423B (en) * | 2015-02-12 | 2018-03-20 | 鸿富锦精密工业（深圳）有限公司 | VATS Vehicle Anti-Theft System and anti-stealing method for vehicles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975686A (en) * | 2012-11-23 | 2013-03-20 | 奇瑞汽车股份有限公司 | Passive entry starting system and operation method thereof |
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