WO1997037096A1 - Dispositif de verrouillage pour vehicules - Google Patents
Dispositif de verrouillage pour vehicules Download PDFInfo
- Publication number
- WO1997037096A1 WO1997037096A1 PCT/JP1997/001116 JP9701116W WO9737096A1 WO 1997037096 A1 WO1997037096 A1 WO 1997037096A1 JP 9701116 W JP9701116 W JP 9701116W WO 9737096 A1 WO9737096 A1 WO 9737096A1
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- WIPO (PCT)
- Prior art keywords
- code
- vehicle
- signal
- wireless
- terminal
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims description 54
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- 238000010586 diagram Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 15
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- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 4
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- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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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
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
-
- 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
-
- 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
- G07C2009/00341—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 keyless data carrier having more than one limited data transmission ranges
- G07C2009/00349—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 keyless data carrier having more than one limited data transmission ranges and the lock having only one limited data transmission range
-
- 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
- G07C2009/00507—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 keyless data carrier having more than one function
- G07C2009/00523—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 keyless data carrier having more than one function opening of different locks separately
-
- 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
- G07C2009/00507—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 keyless data carrier having more than one function
- G07C2009/00531—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 keyless data carrier having more than one function immobilizer
-
- 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
- G07C2009/00579—Power supply for the keyless data carrier
- G07C2009/00603—Power supply for the keyless data carrier by power transmission from lock
- G07C2009/00611—Power supply for the keyless data carrier by power transmission from lock by using inductive transmission
-
- 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
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
-
- 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
- G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
- G07C2009/00825—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed remotely by lines or wireless communication
Definitions
- the present invention relates to a vehicle lock device, and more particularly to a wireless door lock mechanism for remotely controlling a vehicle lock mechanism and an immobilizer mechanism for switching a vehicle between a startable state and a non-startable state.
- the present invention relates to a vehicle locking device having both. Background art
- the wireless door lock device includes a wireless transmitter built in a key, a door lock mechanism mounted on a vehicle, and an alarm mechanism for issuing an alarm under a predetermined condition.
- the wireless transmitter transmits a wireless signal including a predetermined ID signal when a transmission switch is operated by using a battery built in the key as a power source.
- the door lock mechanism mounted on the vehicle locks or unlocks the door lock when the ID signal included in the wireless signal matches the ID signal given to the vehicle.
- the alarm mechanism changes from the operating state to the inactive state when the door ⁇ is unlocked, and the inactive state when the door is locked. Switch from state to operating state.
- the door lock state of the vehicle and the operation state of the alarm mechanism can both be remotely controlled based on the function of the wireless door lock device. Therefore, according to the above-described conventional device, the operating state of the alarm mechanism can be switched reliably and appropriately without deteriorating excellent convenience.
- a device that electrically realizes the function of a key similarly to a wireless door lock device a device disclosed in, for example, Japanese Patent Application Laid-Open No. 63-66875 is conventionally known.
- the above-described conventional device includes a transbonder built in a key, and an antenna coil disposed near the key cylinder.
- the transbonder includes a coil that forms an electromagnetic coupling circuit with the antenna coil when a key is inserted into the key cylinder, and a rectifier circuit that is connected to the coil.
- an AC voltage as both ends of the above c Antenakoiru an AC voltage of predetermined frequency is applied is applied to the coil of the tiger Nsubonda, AC voltage is excited by electromagnetic induction.
- the AC voltage excited at both ends of the coil is converted to DC voltage by the rectifier circuit.
- the transbonder transmits an electromagnetic signal including a predetermined ID code using the DC voltage generated as described above as a power source.
- the electromagnetic signal emitted from the transbonder is received by the antenna coil.
- the above conventional device demodulates the electromagnetic signal received by the antenna coil, and unlocks the lock when the ID signal included in the demodulated signal matches the ID signal assigned to the vehicle. It has an unlocking mechanism. Therefore, according to the above-described conventional device, the lock can be released only when an appropriate key is inserted into the key cylinder.
- both the above-described wireless door lock device and the lock device using the transponder judge whether or not the ID signal emitted from the key matches the ID signal given to the vehicle side. Based on the result of the above determination, for example, if the key ID code and the vehicle ID code match, the computer for engine control is set to the movable state, and both ID codes do not match In such a case, if the computer is maintained in a non-movable state, a function of controlling the movable state of the vehicle can be realized.
- ID signals can be communicated as a medium using wireless signals or electromagnetic signals. Is effective in controlling the locked state of the vehicle, and is also effective in controlling the movable state of the vehicle.
- transmitting an ID signal using an electromagnetic signal emitted from a transbonder has the advantage that communication can be performed using energy supplied from the vehicle as a power source, but has only a very short communication distance. There is a disadvantage that it cannot be secured. For this reason, the function of remotely controlling the vehicle door lock cannot be realized depending on the configuration for transmitting the ID signal using the electromagnetic signal.
- the ID signal transmitted using the wireless signal as a medium must be used. It is necessary to coexist a mechanism that controls the locking of the door lock based on the ID and a mechanism that controls the movable state based on the ID signal transmitted using an electromagnetic signal as a medium. In other words, in the vehicle lock device, by combining these mechanisms, it is possible to achieve both excellent convenience and an excellent anti-theft function.
- the present invention has been made in view of the above points, and has as its object to provide a vehicle locking device that has excellent convenience and an excellent anti-theft function, and that can always maintain an appropriate operating state. Aim.
- the vehicle locking device that achieves the above object realizes a wireless door lock function for remotely controlling a locked state of the vehicle and an immobilizer function for switching between a movable state and a non-movable state of the vehicle.
- the above-described vehicle lock device includes a portable transmitter that transmits a first code signal set by a first method and a second code signal set by a second method.
- the vehicle locking device described above includes a wireless door lock mechanism that changes the locked state of the vehicle when the first code signal corresponds to the vehicle code, and a vehicle that locks the vehicle when the second code signal corresponds to the vehicle code.
- an immobilizer mechanism for changing from a non-movable state to a movable state, and selectively operates either the wireless door lock mechanism or the immobilizer mechanism.
- the wireless door lock function is realized by transmitting the first code signal from the portable transmitter.
- the immobilizer function is realized by transmitting the second code signal from the portable transmitter.
- the code signal for realizing the wireless door lock function is different from the code signal for realizing the immobilizer function, high security is realized.
- the wireless door lock function and the immobilizer function are selectively realized. For this reason, malfunctions caused by interference between the first code signal and the second code signal are avoided. Therefore, according to the present invention, it is possible to secure excellent convenience and realize an excellent anti-theft function while avoiding malfunction.
- Another vehicle lock device that achieves the above object realizes a wireless door lock function for remotely controlling a locked state of the vehicle and an immobilizer function for switching between a movable state and a non-movable state of the vehicle. Further, the above-described vehicle locking device transmits a first code signal set by the first method and a second code signal set by the second method, and transmits the first code signal. It has a portable transmitter with an internal power supply that supplies power for transmitting signals. Further, the vehicle locking device includes an immobilizer power generation mechanism that generates power for transmitting the second code signal when the portable transmitter and the vehicle are in a predetermined approach state, and a first code.
- a wireless door lock mechanism that changes the locked state of the vehicle when the signal corresponds to the vehicle code, and an immobilizer that changes the vehicle from the non-movable state to the movable state when the second code signal corresponds to the vehicle code.
- a wireless prohibition mechanism for prohibiting the portable transmitter from transmitting the first code signal when the immobilizer power generation mechanism is generating predetermined power.
- the communication distance of the first code signal is set to a sufficiently long distance.
- the portable transmitter has a built-in power supply for transmitting the first code signal. Therefore, the first code signal can be transmitted in a situation where the portable transmitter and the vehicle are sufficiently separated.
- the first code signal has a sufficiently long communication distance. Therefore, the wireless door lock function can be realized even when the vehicle and the portable transmitter are separated from each other.
- the second code signal is transmitted only in a situation where the immobilizer power generation mechanism can generate power, that is, in a situation where the vehicle and the portable transmitter are in a predetermined close state. Therefore, when the vehicle and the portable transmitter are separated from each other, both the first code signal and the second code signal are not transmitted from the portable transmitter, and the two do not interfere with each other. Further, in a situation where the vehicle and the portable transmitter are in a predetermined close state and power is generated from the immobilizer power generation mechanism, transmission of the first code signal is prohibited. It is. Therefore, even when the vehicle and the portable transmitter are close to each other,
- the wireless door lock function and the immobilizer function can be stably realized while avoiding interference between the first code signal and the second code signal.
- FIG. 1 is a system configuration diagram of a vehicle hook device corresponding to one embodiment of the present invention
- FIG. 2 is a block diagram of a first communication circuit, a second communication circuit, and a block diagram of an electronic control unit included in the vehicle hook-up device shown in FIG. 1,
- Fig. 3 is a circuit diagram of an electric circuit composed of the control I (:, battery and switch provided in the vehicle locking device shown in
- FIG. 4 is a circuit diagram showing an internal structure of an operation unit included in the control IC shown in FIG. 3,
- FIG. 5 is a circuit diagram showing the internal structure of the immobilizer control unit included in the control IC shown in FIG. 3,
- FIG. 6 is a flowchart of an example of a main routine executed in the electronic control unit shown in FIG. 1,
- FIG. 7 is a flowchart of an example of a subroutine executed to realize the wireless mode in the electronic control unit shown in FIG. 1, and FIG. 8 is executed to realize the radio mode in the electronic control unit shown in FIG. Flowchart of an example of a subroutine
- FIG. 9 is a flowchart of an example of a subroutine executed to realize the program mode in the electronic control unit shown in FIG. 1
- FIG. 10 is a flowchart of an example of a main routine executed in the control IC shown in FIG. To
- FIG. 11 is a flowchart of an example of a subroutine executed to realize the wireless mode in the control IC shown in FIG. 1;
- FIG. 12 is a flowchart of an example of a subroutine executed to implement immobilization mode in the control IC shown in FIG.
- FIG. 13 is a system configuration diagram of a main part of a vehicle hook device according to a second embodiment of the present invention.
- FIG. 14 is a system configuration diagram of a main part of a vehicle locking device according to a third embodiment of the present invention.
- FIG. 1 shows a system configuration diagram of a vehicle hook device according to an embodiment of the present invention.
- the system according to the present embodiment includes a key cylinder 10.
- An antenna coil 12 is provided at the tip of the key cylinder 10 (the right end in FIG. 1).
- a first communication circuit 14 is provided near the key Sinder 10. The antenna coil 12 is electrically connected to the first communication circuit 14.
- the first communication circuit 14 is connected to an electronic control unit 16 (hereinafter, referred to as ECU 16) for controlling the vehicle locking device. Furthermore, a computer 18 for engine control (hereinafter referred to as an EFI computer 18) is connected to the ECU 16. The ECU 16 sets the EFI computer 18 to a movable state or a non-movable state based on a signal transmitted from the first communication circuit 14.
- the vehicle locking device includes a wireless antenna 20.
- the wireless antenna 20 is electrically connected to the second communication circuit 22.
- the second communication circuit 22 is connected to the ECU 16.
- the second communication circuit 22 amplifies the wireless signal received by the wireless antenna 20 and supplies the amplified wireless signal to the ECU 16.
- the ECU 16 is connected to a door control computer 24 (hereinafter referred to as 0 / (computer 24)) that controls the locking state of the door lock. 2
- a control signal is issued to the DZC computer 24 based on the signal transmitted from the communication circuit 22.
- D / The C computer 24 locks or unlocks the door lock in response to a control signal issued from the ECU 16.
- the vehicle opening device of the present embodiment includes a key 26.
- the key 26 contains a control IC 28, a battery 30, and a switch 32.
- the door and trunk of the vehicle are switched between the locked state and the unlocked state by operating the switch 32.
- the number of switches incorporated in the key 26 is not limited to one, but a switch for locking the vehicle door, a switch for unlocking the vehicle, and a switch for locking or locking the trunk. Switches for unlocking may be provided separately and independently.
- the control IC 28 has a function of transmitting a wireless signal using the battery 30 as a power source when the switch 32 is brought into a close state. The output of the wireless signal is such that the communication distance between the key 26 and the wireless antenna 20 is several meters.
- the control IC 28 has a built-in coil that forms an electromagnetic coupling circuit with the antenna coil 12 when the key 28 is inserted into the key cylinder 10. Further, the control IC 28 has a function of transmitting an electromagnetic signal from the built-in coil to the antenna coil 12 when the key 26 is inserted in the key ring 10.
- FIG. 2 is a block diagram showing an internal configuration of the first communication circuit 14, the second communication circuit 22, and the ECU 16.
- the first communication circuit 14 includes a drive circuit 34 connected to the antenna coil 12 and a detection Z demodulation circuit 36. Is drive circuit 34 described later? When a drive signal is generated from the ECU 16 as shown in (3), the drive circuit receives the drive signal and generates an AC voltage having a predetermined frequency. When the drive circuit 34 generates an AC voltage as described above, a voltage signal is generated at both ends of the antenna coil 12 with the amplitude of the cycle of the AC voltage.
- a voltage signal generated at both ends of the antenna coil 12 is input to the detection Z demodulation circuit 36.
- Control IC built in key 20 as described later Numeral 28 serially transmits a discriminating code formed by combining a plurality of binary signals to the antenna coil 12.
- a discriminating code formed by combining a plurality of binary signals to the antenna coil 12.
- the second communication circuit 22 includes an amplification circuit 38 and a demodulation circuit 40 connected to the wireless antenna 20.
- the amplifier circuit 38 amplifies the wireless signal received by the wireless antenna 20 and supplies the wireless signal to the demodulation circuit 40.
- the control IC 28 incorporated in the key 20 transmits a wireless signal on which information of a discrimination code is superimposed by a method such as FM modulation.
- the demodulation circuit 40 demodulates the signal supplied from the amplification circuit 38 and generates a signal corresponding to the discrimination code superimposed on the wireless signal.
- the ECU 16 is provided with a micro computer 42, an EPR ⁇ M 44, and a power supply circuit 46.
- the EEPROM 44 is a rewritable non-volatile memory that can retain its stored contents even when power supply is cut off, and that can rewrite its stored contents by supplying a predetermined electric signal. Element.
- EEPROM 44 stores five types of ID codes constituted by a combination of a plurality of bit signals. Note that the ID code is not limited to five types, and the number may be set to a larger number or a smaller number.
- the power supply circuit 46 is a circuit that supplies power to the microcomputer 42.
- the power supply circuit 46 is supplied with a power supply voltage from a vehicle battery.
- the power supply circuit 46 generates a 5 V voltage using the power supply voltage as a power source. Note that the five types of ID codes are stored in the EEPROM 44 because the key used for the same vehicle is used. This corresponds to the assumption of five lines.
- a key switch 48 is connected to the microcomputer 42 together with the EFI computer 18 and the DZC computer 24.
- the key switch 48 is a switch that is turned on when the key 26 is inserted into the key cylinder 10.
- One end of the key switch 48 is connected to the GND terminal.
- the microcomputer 42 determines that the key 26 is inserted into the key cylinder 10 when the GND potential is supplied from the key switch 48.
- the microcomputer 42 includes a RAM 50 that is a volatile memory and a ROM 52 that is a read-only memory.
- the microcomputer 42 has a Data in B terminal 42 B connected to the detection and demodulation circuit 36 of the first communication circuit 14 and a Data connection terminal connected to the demodulation circuit 40 of the second communication circuit 22.
- a terminal 4 2 a and c microcomputer 4 2 and a recognizes a Data in a supplied code terminals 4 2 discrimination code which is supplied to the a wireless signal as a medium
- Data in B Recognizes the discrimination code supplied to terminal 42B as a code supplied using electromagnetic signals as a medium.
- the code recognized as being supplied using the wireless signal as a medium is stored in the RAM 50 after being converted according to the first conversion logic.
- the microcomputer 42 outputs a signal for inverting the locked state of the door lock. Is supplied to D / C computer 24.
- the code recognized as being supplied with the electromagnetic signal as a medium is stored in the RAM 50 after being converted according to the second conversion logic.
- the microcomputer 42 determines whether or not the EFI A signal is issued to switch the evening 18 from the non-moving state to the moving state.
- the EFI computer 18 is in the non-moving state, the ignition is not turned on and fuel injection is prohibited.
- a signal permitting the movable state as described above is supplied to the EFI combination 18, these prohibitions are released and the vehicle can be started.
- FIG. 3 shows a circuit diagram of an electric circuit including a control IC 28, a battery 30, and a switch 32 built in the key 26.
- the control IC 28 includes a wireless control unit 54.
- a battery 30 is connected to a power supply terminal 54 Vcc of the wireless control unit 54.
- the wireless control unit 54 is activated after the switch 32 is turned on and the power supply voltage is started to be supplied from the battery 30 to the CNTL terminal 54C.
- the wireless control unit 54 has a movable state control terminal 54E (the wireless control unit 54 is supplied with a level signal (hereinafter referred to as a low signal) to the movable state control terminal 54E). In this case, the movable state is established. On the other hand, when a high-level signal (hereinafter referred to as a high signal) is supplied to the movable state control terminal 54E, the movable state is established.
- a high-level signal hereinafter referred to as a high signal
- the wireless control unit 54 has a Select A terminal 54 A and a Data in terminal 54 I. Further, to the wireless control unit 54, an LC circuit 60 including a wireless antenna coil 56 and a wireless capacitor 58 is connected.
- the wireless controller 54 A high signal is output from the A terminal 54 A, 2
- the signal supplied to the Data in terminal 54 I is read, and 3
- the signal modulated based on the signal read from the Data in terminal 54 I is converted into an LC circuit 60 To supply.
- the Data in terminal 54 I is provided with a code obtained by subjecting the ID code assigned to the key 26 to a predetermined conversion (hereinafter, this code is referred to as A (Referred to as a conversion code). Therefore, a signal modulated based on the A conversion code is supplied to the LC circuit 60.
- the wireless antenna coil 56 constituting the LC circuit 60 is wound around the common antenna core 62.
- the modulated signal is supplied to the LC circuit 60 as described above, the common antenna core 62 has directivity in the axial direction of the common antenna core 62 and the A conversion code A wireless signal containing the information is output.
- the wireless signal emitted from common antenna core 62 is received by wireless antenna 20 existing within the range of a predetermined communication distance.
- the signal received by the wireless antenna 20 is demodulated by the second communication circuit 22 as described above, and then supplied to the microcomputer 42. Thereafter, the microcomputer 42 performs processing for locking or unlocking the door lock based on the received A conversion code.
- the control IC 28 includes an EEPROM 64 which is a nonvolatile memory.
- the EE PROM 4 has a power supply terminal 64 Vcc, a data in terminal 64 I, and a data out terminal 640.
- the power supply terminal 64 Vcc of the EEPROM 66 is connected to the diode terminal of the diode 66 and the cathode terminal of the diode 68.
- Diode 6 6 is connected to the power supply terminal 5 4 V DD wireless controller 5 4 at its Anodo terminal.
- the power supply terminal 54 V DD outputs the power supply voltage V cc when the voltage from the battery 30 is applied to the CNTL terminal 54 C.
- the Data in terminal 64 I of the EE PROM 64 is connected to a Data out terminal 800 of the immobilizer control unit 80 described later.
- the EE PROM 64 stores one of the five types of ID codes stored in the EEPROM 44 of the ECU 16.
- the ID code stored in the EEPROM 64 is rewritten to a new ID code when a new ID code is supplied from the immobilizer control unit 80 to the Data in terminal 64 I.
- the timing at which the EEPROM 64 outputs the ID code is not limited to synchronization with the on-time of the switch 32. For example, a trigger signal is output from the wireless control unit 54. And synchronize it with that signal.
- the Data out terminal 640 of the EE PROM 64 is connected to the Data in terminal 70 I of the operation unit 70.
- the operation unit 70 includes a Set A terminal 70 S A, a Set B terminal 70 SB, a Data out A terminal 700 A, and a Data out B terminal 70 OB.
- the Set A terminal 70 S A and the Data out A terminal 700 A are connected to the Select A terminal 54 A and the Data in terminal 54 I of the wireless control unit 54, respectively.
- the Set B terminal 70 SB and the Data out B terminal 70 ⁇ B are connected to a Select B terminal 80 B and a Data in terminal 80 I of the immobilizer control unit 80 described later, respectively.
- FIG. 4 is a circuit diagram showing the internal structure of the arithmetic unit # 0.
- the operation unit 70 includes N-channel MOS transistors 72 and 74.
- the transistors arranged inside the arithmetic section 70 are configured as unipolar transistors, and the drains of the c transistors 72 and 74 can be replaced with bipolar transistors. Both terminals are connected to the Data in terminal 70 I.
- the gate terminals of transistors 72 and 74 are connected to Set A terminal 70 SA and Set B terminal 70 SB, respectively.
- the source terminals of the transistors 72 and 74 are connected to the first arithmetic circuit 76 and the second arithmetic circuit 78, respectively.
- An ID code is supplied to the Data in terminal 70 I of the arithmetic unit 70 from the EEPROM 64.
- the first arithmetic circuit 76 When the ID code supplied to the Data in terminal 70 I is supplied to the first arithmetic circuit 76, the first arithmetic circuit 76 generates the first logic (hereinafter referred to as A conversion logic) which is set in advance.
- the ID code is converted to an A conversion code according to the above, and the A conversion code is output to the Data out A terminal 70 OA.
- the control IC 28 includes an immobilizer control unit 80.
- the immobilizer control unit 80 has a power supply terminal 80 Vout, a power state setting terminal 80 VS, It has a power supply terminal of 80 Vcc.
- the Select B terminal 80 SB is connected to the Set B terminal 70 SB of the calculation unit 70 and to the movable state control terminal 54 E of the wireless control unit 54.
- the power supply terminal 80 Vout is connected to the diode 68 terminal terminal.
- the power supply state set terminal 80 VS and the power supply terminal 80 Vcc are respectively connected to the gate terminal or the source terminal of the P-channel type MOS transistor 82.
- the drain terminal of the transistor 82 is connected to the battery 30.
- An LC circuit 88 composed of an electromagnetic signal antenna coil 84 and an electromagnetic signal capacitor 86 is connected to the immobilizer control unit 80.
- the electromagnetic signal antenna coil 84 is wound around the common antenna core 62.
- the electromagnetic signal antenna coil 84 and the common antenna core 62 provide an electromagnetic coupling circuit between the electromagnetic signal antenna coil 84 and the antenna coil 12 when the key 26 is inserted into the réelle cylinder 10.
- FIG. 5 is a circuit diagram showing the internal structure of the immobilizer control unit 80.
- the immobilizer controller 80 includes a load circuit 90 connected to the LC circuit 88.
- the load circuit 90 selectively includes a first load 92 having a first impedance Z, a second load 94 having a second impedance Z2, and a first load 92 and a second load 94.
- a switch circuit 96 connected to the LC circuit 88 is provided.
- the immobilizer control unit 80 includes a rectifier circuit 98 connected to the LC circuit 88.
- a voltage signal fluctuating at a predetermined frequency appears at both ends of the antenna coil 12 with the key 26 inserted into the key cylinder 10 as shown in FIG. 1
- the electromagnetic signal antenna coil 84 shown in FIG. At both ends, an AC voltage having the same frequency as the voltage signal appearing in the antenna coil 12 is excited by the electromagnetic induction.
- the rectifier circuit 98 rectifies the AC voltage generated between both ends of the electromagnetic signal antenna coil 84 to generate a constant voltage.
- the constant voltage generated in the rectifier circuit 98 is supplied to the V out terminal Data out of the immobilizer controller 80 and is also supplied to the control circuit 100.
- the control circuit 100 is a main part of the immobilizer control unit 80, is connected to the LC circuit 88, and has the above-mentioned Dataout terminal 800, Select B terminal 800B, Data It is connected to the in terminal 80 I, the power supply state setting terminal 80 VS, and the power supply terminal 80 V cc.
- the control circuit 100 When a voltage exceeding a predetermined value is supplied from the rectifying circuit 98, the control circuit 100 generates an AC voltage at both ends of the electromagnetic signal antenna coil 84. That is, it is determined that the key 26 is inserted into the key cylinder 10. When such a determination is made, the control circuit 100 outputs a high signal to the Select B terminal 80B.
- the selectable terminal 80B of the immobilizer controller 80 is connected to the movable state control terminal 54E of the wireless controller 54 and the SetB terminal 70SB of the arithmetic unit 70. Have been. Accordingly, when a high signal is output from the control circuit 100 to the Select B terminal 80 B, the movable state control terminal 54 E of the wireless control unit 54 and the Set B terminal of the arithmetic unit 70 are output. The high signal is supplied to both of the 70 SBs.
- the wireless control unit 54 When a high signal is supplied to the movable state control terminal 54 E, the wireless control unit 54 enters a non-movable state.
- the output signal of the Select A terminal 54 A of the wireless control unit 54 is always fixed to a low signal when the wireless control unit 54 is in a non-movable state. Therefore, when the control circuit 100 supplies a high signal to the Select B terminal 80 B, that is, when the control circuit 100 determines that the key 26 is inserted into the key sine 10, A state where a low signal is supplied to the Set A terminal 70 SA and a high signal is supplied to the Set B terminal 70 SB of the arithmetic unit 70 is formed.
- the signal output from the Data out B terminal 700 B is supplied to the control circuit 100 shown in FIG. 5 via the Data in terminal 80 I of the immobilizer control unit 80.
- the key 26 is inserted into the key ring If it is determined that the signal is high, a high signal is output to the Select B terminal 80B as described above, and the switch circuit 96 is switched based on the B conversion code input from the Data in terminal 80I. Perform switching.
- the difference between the amplitudes of the AC voltage excited at both ends of the electromagnetic signal antenna coil 84 is that the antenna coil 12 that forms an electromagnetic coupling circuit with the electromagnetic signal antenna coil 84, that is, the tip of the key cylinder 10 Affects the amplitude of the voltage signal generated at both ends of the antenna coil 12 (see Figs. 1 and 2).
- the resonance frequency of the key-side circuit including the LC circuit 88 matches the frequency of the AC voltage supplied to the antenna coil 12, comparison is made between both ends of the antenna coil 12. A large amplitude occurs.
- the resonance frequency of the circuit on the key 26 side is different from the frequency of the AC voltage supplied to both ends of the antenna coil 12, a relatively small amplitude occurs at both ends of the antenna coil 12.
- the first load shown in FIG. 5 is a circuit in which the resonance frequency of the key 26 side circuit including the LC circuit 88 is supplied to the antenna coil 12 when the first down state is realized. It is set so that it almost matches the frequency of the voltage. Also, when the second load Z 2 is realized, the resonance frequency of the circuit on the side of the key 26 including the LC circuit 88 deviates from the frequency of the AC voltage supplied to the antenna coil 12 when the second breakdown state is realized. Yo Is set to Therefore, according to the system of the present embodiment, whether the switch circuit 96 built in the immobilizer control unit 80 is connected to the first load 92 or the second load 94 is connected. Accordingly, the amplitude of the voltage signal generated at both ends of the antenna coil 12 can be changed according to.
- the control circuit 100 determines the first state or the second state depending on whether the bit value of the signal to be transmitted from the key 26 to the antenna coil 12 is "1" or "0". Realize the state. As a result, the amplitude corresponding to the bit value of the signal transmitted from the key 26 appears at both ends of the antenna coil 12.
- a signal used as a medium for transmitting information between the antenna coil 12 and the electromagnetic signal antenna coil 84 will be referred to as an electromagnetic signal.
- the control circuit 100 sets a series of bits corresponding to (1) a code indicating the start of data transmission (hereinafter referred to as a start code). (2) A series of bit data corresponding to the B conversion code supplied from the Data in terminal 80I, and (3) a code indicating the end of data transmission (hereinafter referred to as an end code) The state of the switch circuit 96 is switched so that a series of bit data corresponding to the above is sequentially transmitted to the antenna coil 12 using an electromagnetic signal as a medium.
- a start code indicating the start of data transmission
- an end code a code indicating the end of data transmission
- the electromagnetic signal transmitted in this manner is received by the antenna coil 12.
- the detection / demodulation circuit 36 shown in FIG. 2 demodulates a change in amplitude of a voltage signal generated at both ends of the antenna coil 12 into a binary signal when the antenna coil 12 receives an electromagnetic signal.
- the signal is serially transmitted to the microcomputer 42. Therefore, after the key 26 is inserted into the key cylinder 10, the microcomputer 42 of the ECU 16 sequentially stores the bit values that constitute the start code, the B conversion code, and the end code. Supplied. Thereafter, the microcomputer 42 forbids the operation of the vehicle based on the received B conversion code. A process for releasing or maintaining the stop state is performed.
- the microcomputer 42 applies the first conversion logic to a code recognized as being supplied with a wireless signal as a medium. Also, the second conversion logic is applied to the code recognized as being supplied with the electromagnetic signal as the medium. Then, the locked state of the door lock or the movable state of the vehicle is switched based on whether or not the converted code matches any of the ID codes stored in the EEPROM 44. .
- the A-conversion logic and the B-conversion logic used in the arithmetic unit 70 built in the key 26 are the first conversion logic and the second conversion port used in the microcomputer 42, respectively. It is the inverse function of Gic. Therefore, the A conversion code input using a wireless signal as a medium and the B conversion code input using an electromagnetic signal as a medium are received by the microcomputer 42 and then received by the first conversion logic or the second conversion logic, respectively. According to the conversion logic of 2, the original code, that is, the ID code stored in the EE PROM 64 of the key 26 is converted. Then, the microcomputer 42 determines whether or not the ID code returned to the original form matches the ID code stored in the EPOM 4.
- the ECU 16 shown in FIG. 2 when the key 26 is inserted in the key ring 10 and the engine is started, the data is stored in the EEPROM 44 at a predetermined evening when the engine is started.
- the ID code corresponding to the key 26 entered in the key cylinder 10 among the ID codes is rewritten.
- the ECU 16 requests the control IC incorporated in the key 26 to rewrite the data stored in the EEPROM 64.
- the ECU 16 transmits a plurality of binarized signals constituting a new ID code to the antenna coil 12 using the electromagnetic signal as a medium. Transmit to signal antenna coil 84.
- the control circuit 100 (see FIG. 5) built in the key 26 detects that the above-mentioned electromagnetic signal is supplied from a change in the voltage between both ends of the electromagnetic signal antenna coil 84. When such detection is performed, the control circuit 100 supplies a high signal to the power supply state set terminal 80VS of the immobilizer control unit 80.
- the base terminal of the transistor 82 is connected to the power supply state set terminal 80 V S.
- Transistor 82 is turned on when a high signal is output from power supply state set terminal 80.
- the power supply terminal 80 Vcc of the immobilizer control unit 80 and the battery 30 are brought into conduction. Therefore, when the control circuit 100 recognizes the supply of the electromagnetic signal, the supply of power from the battery 30 to the immobilizer control unit 80 is started.
- the control circuit 100 included in the immobilizer control unit 80 is configured to supply a battery together with the power generated in the rectifier circuit 98 when an electromagnetic signal requesting rewriting of the ID code is supplied. Using the power supplied from 30, a signal requesting rewriting of the ID code is output from Data out terminal 800 to EEPROM 64.
- the operation of the vehicle hook device of the present embodiment will be described in detail. If the switch 32 of the key 26 is turned on while the key 26 is far away from the key cylinder 10, the power supply to the wireless control unit 54 and the EEPROM 64 will be stopped. The wireless signal containing the information of the A-conversion code is transmitted from the common antenna core 62 when started.
- the wireless antenna 20 exists within the range of the wireless signal communication distance, the wireless signal emitted from the key 26 is received by the wireless antenna 20. Then, the ECU 16 converts the A-conversion code superimposed on the wireless signal into an original ID code, and further converts the converted ID code into an ID stored in the vehicle. If the code coincides with the code, the door lock is locked or unlocked (in this way, according to the vehicle locking device of this embodiment, the door 32 is operated by operating the switch 32 of the key 26). If the key 26 is far away from the key ring 10 as described above, an electromagnetic signal is transmitted and received between the key 26 and the antenna coil 12. Therefore, the wireless signal and the electromagnetic signal do not interfere with each other during the remote operation of the door opening, and according to the system of this embodiment, the wireless door opening function is high. Operational stability can be obtained.
- the electromagnetic signal emitted from the key 26 is received by the antenna coil 12, demodulated into an electric signal of a predetermined format, and supplied to the ECU 16. Then, the ECU 16 converts the B conversion code superimposed on the electromagnetic signal into an ID code, and furthermore, if the converted ID code matches the ID code stored on the vehicle side. Switches the EFI 18 from the non-movable state to the movable state.
- the vehicle can be made movable by inserting the regular key 26 into the key cylinder 10.
- the above functions are realized without using a consumable power source such as a battery. Therefore, the function can be constantly realized without being affected by the consumption of the battery. Therefore, according to the vehicle hook device of the present embodiment, it is possible to reliably avoid a situation where the vehicle cannot be made movable even though the regular key 26 is used. be able to.
- the control IC 28 includes a rectifier circuit as described above. It is configured so that the wireless signal is not transmitted when 98 generates an appropriate voltage. Therefore, when the key 26 is inserted into the key ring 10, no wireless signal is transmitted even if the switch 32 of the key 26 is turned on. Therefore, according to the vehicle locking device of the present embodiment, the way c it is possible to obtain a high operational stability with respect to function of switching the vehicle from a non-movable state to the movable state, in this embodiment, the wireless antenna coil 5 The antenna coil 6 and the antenna coil 8 4 are wound around a common antenna core 62.
- the device of the present embodiment since the wireless signal and the electromagnetic signal are not transmitted at the same time, even if the common antenna core 62 is used in common for the two antenna coils 56, 54, the ID can be obtained. There is no inconvenience in communicating the code.
- directivity can be given to both the wireless signal and the electromagnetic signal while suppressing an increase in the number of parts, an increase in cost, and the like to a minimum source. Therefore, according to the structure of the present embodiment, an increase in the number of parts and an increase in cost are minimized, and excellent communication performance is achieved in both communication using a wireless signal and communication using an electromagnetic signal as a medium. Can be realized.
- the A conversion code is superimposed on the wireless signal, while the B conversion code is superimposed on the electromagnetic signal.
- these two codes are generated inside the key 26 based on the same ID code, and after being changed to the same ID code again inside the ECU 16. It is subjected to processing. Therefore, it is sufficient to store only one type of ID code for one key 26.
- the example vehicle opening device has an advantage that a high security function can be realized without impairing the productivity of the keys 26 and 5 (: 11 16).
- the ID codes stored in the EEPROM 64 of the key 26 and the EEPRO 44 of the ECU 16 are rewritten at a predetermined timing as described above.
- a larger amount of electric power is required than in the case of performing communication using an electromagnetic signal as a medium.
- the power of the battery 30 is used as described above when rewriting the ID code of the EEPROM 64.
- the ID code of the EE PROM 64 can be rewritten with high accuracy without unnecessarily increasing the power generation capacity caused by electromagnetic induction. it can.
- E CU 1 6 is real - 5 shows a flowchart of an example of a main routine to be executed.
- the routine shown in FIG. 6 it is first determined in step 100 whether the key switch 48 is turned on, that is, whether the key 26 is inserted into the key ring 10. Is done.
- step 102 a wireless signal is being received, or more specifically, the data in A terminal 42 A of the microcomputer 42. It is determined whether a demodulated signal is being input. As a result, if it is determined that the wireless signal has not been received, the current routine is terminated without any further processing. On the other hand, if it is determined that the wireless signal has been received, a subroutine for realizing the wireless mode is started in step 200, and then this routine is ended. If it is determined in step 100 that the key switch 48 is in the on state, it is determined in step 104 whether the engine has already been started.
- step 300 a subroutine for executing the immobilization mode is started in step 300, and then the current routine is terminated.
- step 400 a subroutine for realizing the program mode is started. Is terminated.
- FIG. 7 shows a flowchart of an example of a subroutine executed in the ECU 16 for realizing the wireless mode.
- the routine shown in FIG. 7 is started, first, in step 202, the address of the EEPROM 44 is set so that the ID code recorded in the EEPROM 44 can be read.
- step 204 a process of reading the ID code recorded in the EEPROM 44 and storing the code in the RAM 50 is executed.
- step 206 the code included in the signal supplied using the wireless signal as the medium, that is, the A conversion code is read.
- a process of converting the A conversion code into the ID code is performed by performing the first conversion on the A conversion code.
- step 210 it is determined whether or not the converted ID code matches the ID code read from the EEPROM 44. Is determined. If the converted ID code does not match any of the ID codes stored in the EEPROM44, it is determined that the formal key is not used, and any processing is performed thereafter. This routine is terminated without any processing. On the other hand, in step 210 above, the converted ID code matches any one of the ID codes read from -EE PROM 44. In this case, the command for door lock or door unlock is issued to the D / C computer 24, and then this routine is terminated.
- FIG. 8 shows a flowchart of an example of a subroutine executed in the ECU 16 to realize the immobil mode.
- the immobil mode is a mode for controlling the movable state of the vehicle based on an ID code transmitted to the ECU 16 using an electromagnetic signal as a medium.
- step 302 the address setting of the EE PROM 44 is performed.
- step 304 the ID code stored in the EEPROM 44 is stored in the RAM 5.
- step 310 the code included in the signal supplied using the electromagnetic signal as a medium, that is, the B conversion code is read.
- step 308 a process of converting the B code to the ID code is performed by performing the second conversion on the B conversion code.
- step 310 the converted ID code is replaced with the ID code read from EE PRO M44. If the ID code after c conversion, which determines whether or not they match, does not match any of the ID codes stored in EEPROM 4, it is determined that the regular key is not used, and thereafter, This routine ends without performing any processing. On the other hand, if the converted ID code matches any of the ID codes read out from the EEPROM 44 in the above step 310, the EFI 18 is allowed to be movable. After the command to that effect is issued, the current routine ends.
- FIG. 9 shows a flowchart of an example of a subroutine executed in the ECU 16 to realize the program mode.
- the program mode is a mode executed to change the ID code stored in the EEPR @ M 44 and 64.
- step 404 after a new ID code is created by random numbers c , the newly created ID code is stored in RAM 50 in step 408, and EEPR 0 M After being registered in 3 and further transmitted to the key 26 in step 410, the current routine is terminated.
- FIG. 10 shows a flowchart of an example of the main routine executed by the control IC 28.
- the routine shown in FIG. 10 is started, first, in step 500, it is determined whether or not the state of charge of the rectifier circuit 98 is sufficient. As a result, when it is determined that the state of charge of the rectifier circuit 98 is not sufficient, it is determined that the key 26 is not inserted into the key cylinder 10. In this case, in step 502, it is determined whether or not the wireless transmission switch 32 is turned on.
- the current routine is terminated without performing any processing thereafter.
- a subroutine for realizing the wireless mode is started in step 600, and then this routine is ended. You.
- FIG. 1i shows a flowchart of an example of a subroutine executed in the control IC 28 for realizing the wireless mode.
- the routine shown in FIG. 11 is started, first, in step 602, the power of the wireless control unit 54 is reset. Next, in step 604, a high signal is output to the Select A terminal 54A.
- step 606 the ID code stored in the EPROM 64 is read into the arithmetic unit 70, and the arithmetic unit 70 executes a process of converting the ID code into an A conversion code.
- step 608 it is determined whether or not the above conversion processing has been completed. Then, the determination process is repeatedly performed until it is determined that the conversion process has been completed.
- step 608 If it is determined in step 608 that the conversion process from the ID code to the A conversion code has been completed, then the calculation result is read into the wireless control unit 5 in step 610.
- the A-conversion code read by the wireless control unit 54 is converted into an electric signal by a method such as frequency modulation or amplitude modulation in step 612, and is supplied to the LC circuit 60.
- step 614 it is determined whether or not transmission of all data to be transmitted has been completed. When it is determined that the transmission of all data has been completed, the current routine is terminated.
- FIG. 12 shows a flowchart of an example of a subroutine executed in the control IC 28 to realize the immobil mode.
- the routine shown in FIG. 12 is started, first, in step 702, the immobilizer control unit 80 is reset to power-on, and then in step 706, it is determined whether the program mode is requested. It is determined whether or not the electromagnetic signal requesting rewriting of the ID signal is received by the electromagnetic signal antenna coil 84.
- step 706 If it is determined in step 706 that the program mode is not requested, then in step 708, a high signal is output to the Select B terminal 80B. And the following step 7 1 0 In, the ID code stored in the EEPR @ M 64 is read by the arithmetic unit 70, and the ID code is converted into the B conversion code by the reading unit 70. In step 712, it is determined whether or not the above arithmetic processing has been completed. Until it is determined that the arithmetic processing has been completed, the operation is repeated and the determination processing is executed.
- step 712 If it is determined in step 712 that the conversion process from the ID code to the B conversion code has been completed, then in step 714, the calculation result is read into the immobilizer control unit 80.
- the B conversion code read by the immobilizer control unit 80 is converted into an electric signal composed of a plurality of bit signals in step 716 and supplied to the LC circuit 88.
- step 718 it is determined whether or not transmission of all data to be transmitted has been completed. When it is determined that the transmission of all data has been completed, the current routine ends.
- step 706 If it is determined in step 706 that the program mode has been requested, the processing of step 720 and thereafter is executed. In step 720, it is determined whether or not all data required for rewriting the ID code has been received via the electromagnetic signal antenna coil 84. Then, the determination process is repeatedly executed until it is determined that the reception of all data has been completed.
- step 72 2 the power supply state setting terminal 8
- a high signal is output at 0 V S.
- the transistor 82 is turned on, and the power supply terminal 80 V cc of the immobilizer control unit 80 becomes conductive with the battery 30.
- step 724 a new
- step 728 the output to the power state setting terminal 80VS is cut off to disconnect the connection between the battery 30 and the power terminal 80Vcc. After switching to the mouth signal, the current routine ends.
- the immobilizer function and the wireless door lock function are realized by using the ECU 16, the EFI computer 18, and the DZC computer 24.
- the system configuration that realizes the above functions is not limited to this.
- FIGS. 13 and 14 another system configuration for realizing the above functions will be exemplified.
- FIG. 13 shows a main system configuration diagram of a vehicle locking device according to a second embodiment of the present invention.
- the immobilizer function and the wireless door lock function can be realized as in the case of the first embodiment described above.
- FIG. 14 is a main system configuration diagram of a vehicle locking device according to a third embodiment of the present invention.
- the same components as those shown in FIG. 1 or FIG. 13 are denoted by the same reference numerals, and description thereof will be omitted.
- the Duck device for a vehicle includes an ECU 106 that controls an immobilizer function, together with a first communication circuit 14, a second communication circuit 22, an EFI computer 18, and a DZC computer 24, and It has a wireless ECU 104 that controls the wireless door lock function. Also according to the system configuration of the present embodiment, the same as in the first embodiment described above. Thus, the immobilizer function and the wireless door lock function can be realized.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97914572A EP0892134B1 (en) | 1996-04-03 | 1997-03-31 | Locking device for vehicles |
DE1997629084 DE69729084T2 (de) | 1996-04-03 | 1997-03-31 | Verschlussvorrichtung für fahrzeuge |
AU21771/97A AU2177197A (en) | 1996-04-03 | 1997-03-31 | Locking device for vehicles |
US09/155,712 US6400255B1 (en) | 1996-04-03 | 1997-03-31 | Vehicle lock apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08149696A JP3367326B2 (ja) | 1996-04-03 | 1996-04-03 | 車両用ロック装置 |
JP8/81496 | 1996-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997037096A1 true WO1997037096A1 (fr) | 1997-10-09 |
Family
ID=13748001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/001116 WO1997037096A1 (fr) | 1996-04-03 | 1997-03-31 | Dispositif de verrouillage pour vehicules |
Country Status (6)
Country | Link |
---|---|
US (1) | US6400255B1 (ja) |
EP (1) | EP0892134B1 (ja) |
JP (1) | JP3367326B2 (ja) |
AU (1) | AU2177197A (ja) |
DE (1) | DE69729084T2 (ja) |
WO (1) | WO1997037096A1 (ja) |
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JPH0886130A (ja) * | 1994-09-14 | 1996-04-02 | Omron Corp | 電子キー及びそれを用いた車両盗難防止システム |
JPH09105255A (ja) * | 1995-10-12 | 1997-04-22 | Tokai Rika Co Ltd | 車両コントロールシステム |
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- 1997-03-31 WO PCT/JP1997/001116 patent/WO1997037096A1/ja active IP Right Grant
- 1997-03-31 DE DE1997629084 patent/DE69729084T2/de not_active Expired - Lifetime
- 1997-03-31 AU AU21771/97A patent/AU2177197A/en not_active Abandoned
- 1997-03-31 EP EP97914572A patent/EP0892134B1/en not_active Expired - Lifetime
- 1997-03-31 US US09/155,712 patent/US6400255B1/en not_active Expired - Lifetime
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JPH07205759A (ja) * | 1994-01-17 | 1995-08-08 | Omron Corp | 車両盗難防止装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998035862A1 (de) * | 1997-02-14 | 1998-08-20 | Mannesmann Vdo Ag | Sicherheitseinrichtung für ein kraftfahrzeug |
USRE42915E1 (en) | 1998-07-10 | 2011-11-15 | Toyota Jidosha Kabushiki Kaisha | Vehicle security control apparatus |
DE19932222B4 (de) * | 1998-07-10 | 2012-06-14 | Toyota Jidosha Kabushiki Kaisha | Fahrzeugsicherheitssteuerungsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP0892134B1 (en) | 2004-05-12 |
DE69729084T2 (de) | 2004-10-21 |
DE69729084D1 (de) | 2004-06-17 |
AU2177197A (en) | 1997-10-22 |
EP0892134A4 (en) | 2000-04-05 |
JP3367326B2 (ja) | 2003-01-14 |
JPH09268821A (ja) | 1997-10-14 |
EP0892134A1 (en) | 1999-01-20 |
US6400255B1 (en) | 2002-06-04 |
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