WO2007133287A1 - Vehicle with passive key fob having presence detection arrangement with key fob reader - Google Patents

Vehicle with passive key fob having presence detection arrangement with key fob reader Download PDF

Info

Publication number
WO2007133287A1
WO2007133287A1 PCT/US2006/061313 US2006061313W WO2007133287A1 WO 2007133287 A1 WO2007133287 A1 WO 2007133287A1 US 2006061313 W US2006061313 W US 2006061313W WO 2007133287 A1 WO2007133287 A1 WO 2007133287A1
Authority
WO
WIPO (PCT)
Prior art keywords
key fob
reader
sensor
set forth
security system
Prior art date
Application number
PCT/US2006/061313
Other languages
French (fr)
Inventor
Karthikeyan R. Narayanaswamy
John R. Costello
Original Assignee
Continental Automotive Systems Us, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US11/433,004 external-priority patent/US20070120642A1/en
Application filed by Continental Automotive Systems Us, Inc. filed Critical Continental Automotive Systems Us, Inc.
Priority to JP2009510936A priority Critical patent/JP5222285B2/en
Priority to DE112006003856T priority patent/DE112006003856T5/en
Publication of WO2007133287A1 publication Critical patent/WO2007133287A1/en

Links

Classifications

    • 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
    • G07C9/00944—Details of construction or manufacture
    • 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
    • G07C2009/00365—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 in combination with a wake-up circuit
    • G07C2009/00373—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 in combination with a wake-up circuit whereby the wake-up circuit is situated in the lock

Definitions

  • key fobs that allow electronic access to the vehicle.
  • One type of key fob is a so-called passive key fob, wherein the key fob is solely an electronic item.
  • the key fob is inserted into a reader.
  • the reader looks for an identifying code on the key fob, and if an appropriate code is found, it allows actuation of the vehicle such as through an ignition switch.
  • insertion of some device other than a key fob into a key fob reader will wake the circuit, and cause the circuit to query the device in the reader.
  • a mechanical switch and contact mechanism has been utilized. These mechanical switches and contact mechanisms have been subject to failure after repeated wear. Further, tolerance stack-ups of all the various mechanical components have to be considered, and closely controlled to ensure switch contact as a key fob is inserted into the reader.
  • the required mechanical switches have been tailored for each individual system, which is undesirably expensive. Moreover, the required mechanical switches are relatively large in size, and require space that puts constraints on the possible locations for the reader.
  • the key fob is provided with a magnetic member.
  • the magnetic member is sensed by a sensor such as a reed or Hall-effect sensor within the key fob reader. This sensor may be relatively small, and the elimination of the mechanical contact results in the sensor having a relatively long life compared to the prior art. Further, there is little or no deterioration of the sensor, and the detection and accuracy over the life of the product.
  • Figure 1 is a schematic view of a first embodiment.
  • Figure 2 is a schematic view of a second embodiment.
  • a first embodiment 20 is illustrated in Figure 1, having a key fob reader 22 which receives a key fob 24.
  • a printed circuit board 26 includes the electronics to query the key fob 24 and actuate a transmitter 27 which transits a code to be read by the printed circuit board 26. If this code is as expected by the printed circuit board 26 and the associated control, then the key fob is authorized. At that point, an ignition switch 32 may be actuated to start the ignition of the car.
  • the present invention improves upon the prior art by including a magnet 30 on a key fob 24.
  • the presence of the magnet 30 is sensed by a sensor 28.
  • Sensor 28 may be a reed switch or Hall-effect switch which can sense the presence of the magnet 30.
  • a magnetic contact was made when the key fob 24 was inserted.
  • the present invention allows a sensing range as shown by dotted line in Figure 1, which will allow a reduction in the required space for the key fob reader 22.
  • the elimination of the mechanical switches provides benefits as mentioned above.
  • the size of the key fob reader 22 and the key fob 24 are shown greatly exaggerated relative to the size of the vehicle. However, this is done for simplicity of understanding the illustration.
  • Figure 2 shows a second embodiment 120.
  • the key fob 124 is received in a reader 122 having a printed circuit board 126 as in the first embodiment.
  • the sensor 128 is located remotely, and can sense the presence of an appropriate key fob 124 when the key fob first enters the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A passive key fob reader for receiving a key fob and controlling actuation of a vehicle is provided with a 'wake up' system that includes a sensor, such as a reed or Hall-effect switch which can sense the presence of a magnet on the key fob. The key fob is preferably provided with a magnet such that when inserted into the key fob reader, it wakes up the sensor, and causes the sensor to actuate a control to query the key fob and identify whether the key fob has an appropriate identification number. In a second embodiment, the sensor is located remotely from the key fob reader.

Description

VEHTCLE WTTH PASSTVE KEY FOB HAVTNG PRESENCE DETECTIONARRANGEMENTWITH KEYFOB READER
BACKGROUND OF THE INVENTION Modern vehicles are being provided with key fobs that allow electronic access to the vehicle. One type of key fob is a so-called passive key fob, wherein the key fob is solely an electronic item. The key fob is inserted into a reader. The reader looks for an identifying code on the key fob, and if an appropriate code is found, it allows actuation of the vehicle such as through an ignition switch. In the prior art, insertion of some device other than a key fob into a key fob reader will wake the circuit, and cause the circuit to query the device in the reader. A mechanical switch and contact mechanism has been utilized. These mechanical switches and contact mechanisms have been subject to failure after repeated wear. Further, tolerance stack-ups of all the various mechanical components have to be considered, and closely controlled to ensure switch contact as a key fob is inserted into the reader.
The required mechanical switches have been tailored for each individual system, which is undesirably expensive. Moreover, the required mechanical switches are relatively large in size, and require space that puts constraints on the possible locations for the reader.
SUMMARY OF THE INVENTION
In a disclosed embodiment of this invention, the presence of a key fob in a key fob reader will be determined electronically. In this manner, the mechanical switches required in the prior art are eliminated. Further, the false readings when an item other than a key fob has been inserted will also be eliminated. In a disclosed embodiment of this invention, the key fob is provided with a magnetic member. The magnetic member is sensed by a sensor such as a reed or Hall-effect sensor within the key fob reader. This sensor may be relatively small, and the elimination of the mechanical contact results in the sensor having a relatively long life compared to the prior art. Further, there is little or no deterioration of the sensor, and the detection and accuracy over the life of the product. These and other features of the present invention can be best understood from the following specification and drawings, the following of which is a brief description.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic view of a first embodiment. Figure 2 is a schematic view of a second embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A first embodiment 20 is illustrated in Figure 1, having a key fob reader 22 which receives a key fob 24. As known, a printed circuit board 26 includes the electronics to query the key fob 24 and actuate a transmitter 27 which transits a code to be read by the printed circuit board 26. If this code is as expected by the printed circuit board 26 and the associated control, then the key fob is authorized. At that point, an ignition switch 32 may be actuated to start the ignition of the car.
The present invention improves upon the prior art by including a magnet 30 on a key fob 24. The presence of the magnet 30 is sensed by a sensor 28. Sensor 28 may be a reed switch or Hall-effect switch which can sense the presence of the magnet 30. In the prior art, a magnetic contact was made when the key fob 24 was inserted. The present invention allows a sensing range as shown by dotted line in Figure 1, which will allow a reduction in the required space for the key fob reader 22. Moreover, the elimination of the mechanical switches provides benefits as mentioned above.
The size of the key fob reader 22 and the key fob 24 are shown greatly exaggerated relative to the size of the vehicle. However, this is done for simplicity of understanding the illustration.
Figure 2 shows a second embodiment 120. In the second embodiment 120, the key fob 124 is received in a reader 122 having a printed circuit board 126 as in the first embodiment. However, the sensor 128 is located remotely, and can sense the presence of an appropriate key fob 124 when the key fob first enters the vehicle.
Although preferred embodiments of this invention have been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.

Claims

CLATMS
1. A security system for a vehicle comprising: a key fob reader for receiving a key fob, and including a control for querying the key fob receiving a signal indicative of a code from the key fob, and comparing said received code to an expected code to authorize actuation of the vehicle when a key fob is inserted in the key fob reader; a key fob receiving a magnetic member and carrying an identifying code and a transmitter; and a sensor for sensing the presence of the magnetic member on a key fob, said sensor waking up the key fob reader to query the key fob when a magnetic member is sensed.
2. The security system as set forth in claim 1, wherein a printed circuit board is received within said key fob reader and includes said control.
3. The security system as set forth in claim 2, wherein said sensor is associated with said printed circuit board in said key fob reader.
4. The security system as set forth in claim 2, wherein said sensor is associated with said key fob reader.
5. The security system as set forth in claim 1, wherein said sensor is located remotely from said key fob reader.
6. The security system as set forth in claim I5 wherein said sensor is a rccd switch.
7. The security system as set forth in claim 1, wherein said sensor is a HaIl- effect sensor.
8. A method of operating a security system for a vehicle including: providing a key fob reader for receiving a key fob, and including a control, said control querying the key fob, receiving a signal indicative of a code from the key fob, and comparing said received code to an expected code to authorize actuation of the vehicle, when a key fob is inserted in the key fob reader; providing a key fob having a magnetic member and carrying an identification code; and sensing the presence of a magnetic member on a key fob, and waking up the key fob reader to query the key fob when a magnetic sensor is sensed.
9. The method as set forth in claim 8, wherein a printed circuit board is received within said key fob reader and includes said control.
10. The method as set forth in claim 8, wherein said sensor is associated with said printed circuit board in said key fob reader.
11. The method as set forth in claim 8, wherein said sensor is associated with said key fob reader.
12. The method as set forth in claim 8, wherein said sensor is located remotely from said key fob reader.
13. The method as set forth in claim 8, wherein a reed switch senses the magnetic member.
14. The method as set forth in claim 8, wherein a Hall-cffcct sensor senses the magnetic member.
PCT/US2006/061313 2006-05-12 2006-11-29 Vehicle with passive key fob having presence detection arrangement with key fob reader WO2007133287A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009510936A JP5222285B2 (en) 2006-05-12 2006-11-29 Vehicle with passive key fob with presence detection device by key fob reader
DE112006003856T DE112006003856T5 (en) 2006-05-12 2006-11-29 Safety system for a vehicle with a passive key fob and a presence detection system with a key fob reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/433,004 2006-05-12
US11/433,004 US20070120642A1 (en) 2005-11-28 2006-05-12 Vehicle with passive key fob having presence detection arrangement with key fob

Publications (1)

Publication Number Publication Date
WO2007133287A1 true WO2007133287A1 (en) 2007-11-22

Family

ID=37943946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/061313 WO2007133287A1 (en) 2006-05-12 2006-11-29 Vehicle with passive key fob having presence detection arrangement with key fob reader

Country Status (3)

Country Link
JP (1) JP5222285B2 (en)
DE (1) DE112006003856T5 (en)
WO (1) WO2007133287A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20130037A1 (en) * 2013-07-02 2015-01-03 Nilfisk Advance As SOIL CLEANING MACHINE WITH PERFECT KEY
US20150301084A1 (en) * 2014-04-22 2015-10-22 KSR IP Holdings, LLC Sensor with shielding element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733861A (en) * 1972-01-19 1973-05-22 Recognition Devices Electronic recognition door lock
DE3613858A1 (en) * 1986-04-24 1987-10-29 Kokusan Kinzoku Kogyo Kk Automobile anti-theft alarm
EP0846820A1 (en) * 1996-12-06 1998-06-10 Siemens Aktiengesellschaft Locking system, in particular for a motor vehicle
CA2206286A1 (en) * 1997-05-27 1998-11-27 Megatech Electro Inc. Transponder system
DE20006373U1 (en) * 2000-04-06 2001-08-09 Dirak Gmbh & Co Kg Electrically lockable swivel lever operation
EP1403153A1 (en) * 2002-09-26 2004-03-31 Honda Giken Kogyo Kabushiki Kaisha Anti-theft device in motorcycle
US20050023901A1 (en) * 2003-07-29 2005-02-03 Lear Corporation Non-ignition switch vehicle ignition enabling system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07150835A (en) * 1993-11-29 1995-06-13 Alpha Corp Driving control system
JP2000033851A (en) * 1998-07-16 2000-02-02 Sanwa New Tec Kk Vehicle engine start-up system utilizing ic card
DE10006747A1 (en) * 2000-02-15 2001-08-16 Scemtec Automation Gmbh Transponder-assisted function triggering arrangement has transponder connected to magnet in reading/writing range of switch controlled by magnet to switch operating voltage source on/off
JP2005160039A (en) * 2003-10-31 2005-06-16 Yonezawa Densen Kk Antenna for data transmission/reception cards and electronic key for vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733861A (en) * 1972-01-19 1973-05-22 Recognition Devices Electronic recognition door lock
DE3613858A1 (en) * 1986-04-24 1987-10-29 Kokusan Kinzoku Kogyo Kk Automobile anti-theft alarm
EP0846820A1 (en) * 1996-12-06 1998-06-10 Siemens Aktiengesellschaft Locking system, in particular for a motor vehicle
CA2206286A1 (en) * 1997-05-27 1998-11-27 Megatech Electro Inc. Transponder system
DE20006373U1 (en) * 2000-04-06 2001-08-09 Dirak Gmbh & Co Kg Electrically lockable swivel lever operation
EP1403153A1 (en) * 2002-09-26 2004-03-31 Honda Giken Kogyo Kabushiki Kaisha Anti-theft device in motorcycle
US20050023901A1 (en) * 2003-07-29 2005-02-03 Lear Corporation Non-ignition switch vehicle ignition enabling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20130037A1 (en) * 2013-07-02 2015-01-03 Nilfisk Advance As SOIL CLEANING MACHINE WITH PERFECT KEY
EP2821973A1 (en) * 2013-07-02 2015-01-07 Nilfisk Advance A/S Apparatus for floor cleaning, with improved key
US9601288B2 (en) 2013-07-02 2017-03-21 Nilfisk A/S Apparatus for floor cleaning, with improved key
US20150301084A1 (en) * 2014-04-22 2015-10-22 KSR IP Holdings, LLC Sensor with shielding element
US9958293B2 (en) * 2014-04-22 2018-05-01 KSR IP Holdings, LLC Sensor with shielding element

Also Published As

Publication number Publication date
JP5222285B2 (en) 2013-06-26
DE112006003856T5 (en) 2009-04-23
JP2009536900A (en) 2009-10-22

Similar Documents

Publication Publication Date Title
CN105313836B (en) For entering the sliding and tap verifying of system
US6236333B1 (en) Passive remote keyless entry system
US6489886B2 (en) Security system to prevent unauthorized starting of the engine of a vehicle
US6703919B2 (en) Method of confirming remote keyless entry lock button status
EP1469428B2 (en) Switch device, especially ignition switch, interrogating a transponder by radio waves
CN101271600B (en) Access device for vehicle
US20070120642A1 (en) Vehicle with passive key fob having presence detection arrangement with key fob
US5679984A (en) Vehicle security system
US20050151629A1 (en) Anti-theft system for a motor vehicle
US20070030136A1 (en) On-board illumination controlling system and method
US10385594B2 (en) Power locking door handle with capacitive sensing
US20110057788A1 (en) Apparatus and Method For Determining Tampering With A Movable Barrier
US20080238135A1 (en) Control apparatus of opening and closing body for vehicle
WO2010088136A2 (en) Keyless-go ignition switch with fault backup
US20090206990A1 (en) Aftermarket convenience entry and start system
JP3299532B2 (en) Electronic safety system with authentication element range determination means, especially vehicle lock system
CN111788417A (en) Method for determining the parking lock state of a motor vehicle
US7355299B2 (en) Non-ignition switch vehicle ignition enabling system
US7889074B2 (en) Computer module for sensor system with activation alert
CN101506008A (en) Electric steering lock, in particular for a motor vehicle
US20080150686A1 (en) Security system with passive locking bypass
US20020145535A1 (en) Vehicle control system for a vehicle data communications bus and having verification features
WO2007133287A1 (en) Vehicle with passive key fob having presence detection arrangement with key fob reader
EP1629419A1 (en) Electronic communications system
CN109843649B (en) Position and actuation sensing apparatus for handlebar of vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06846390

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1120060038567

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: 2009510936

Country of ref document: JP

RET De translation (de og part 6b)

Ref document number: 112006003856

Country of ref document: DE

Date of ref document: 20090423

Kind code of ref document: P

122 Ep: pct application non-entry in european phase

Ref document number: 06846390

Country of ref document: EP

Kind code of ref document: A1