JP4099026B2 - Electronic key system for motorcycles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention performs a wireless communication between a transmitter / receiver (electronic key) carried by a user and a control device mounted on an actual vehicle, collates the ID, and is a request from an authorized user. And start the engineMotorcycleFor electronic key systemaboutThe
[0002]
[Prior art]
As an electronic key system for vehicles, there are patent documents 1 and patent documents 2, for example. In these electronic key systems for vehicles in Patent Documents 1 and 2, activation means (switches) are installed on the door handle or trunk lid of an actual vehicle, and when the user operates (activates) these activation means, the electronic key Communication is started, the ID sent from the electronic key is checked against the ID registered in the control device, and the door lock is released when the ID matching result is obtained. is there.
[0003]
Further, in Patent Documents 1 and 2 described above, the ignition knob is also provided with an activation means (switch), and after the user gets on the four-wheeled vehicle, the user operates the ignition knob to communicate with the electronic key again. ID collation for permitting engine start is performed. Then, the engine is started when the ID matching result is obtained.
[0004]
That is, in a conventional vehicle electronic key system for a four-wheeled vehicle, the electronic key has a function of unlocking the door and allowing the engine to start.
[0005]
Further, as a conventional technique, an electronic key system has been proposed in which a transmission antenna is provided at each door of a four-wheeled vehicle, and only the door that the portable device approaches can be unlocked independently of the other doors of the vehicle. (For example, refer to Patent Document 3).
[0006]
As described above, in the electronic key system as described above, in the communication between the control device mounted on the actual vehicle and the electronic key, the transmittable range from the control device is narrower than the transmittable range from the electronic key. Therefore, in the above-described conventional technology, a plurality of transmission antennas that output signals from the control device are installed according to various applications.
[0007]
[Patent Document 1]
JP 2001-349110 A (paragraphs [0026] to [0028])
[Patent Document 2]
JP 2001-349117 A (paragraphs [0022] to [0024])
[Patent Document 3]
JP 10-317754 A (paragraph [0006])
[0008]
[Problems to be solved by the invention]
By the way, when the electronic key system as described above is applied to a two-wheeled vehicle, the user needs to reliably communicate with the electronic key carried by the user at least during a ride operation on the actual vehicle and during travel.
[0009]
For example, depending on the user, the electronic key may be carried in a clothing pocket, etc., but in such a case, if communication with the electronic key is interrupted, the handle etc. There is a possibility that the mechanism cannot be unlocked, and it becomes impossible to get on the vehicle and to travel.
[0010]
  The present invention has been made in consideration of such problems, and can reliably communicate with an electronic key carried by the user at least during a ride operation on a real vehicle and during travel.MotorcycleAn object of the present invention is to provide an electronic key system.
[0011]
[Means for Solving the Problems]
  FirstAccording to the present inventionMotorcycleThe electronic key system for use includes a control device mounted on a real vehicle and an electronic key that transmits a response signal based on reception of a request signal transmitted from the control device via a transmission antenna.MotorcycleIn the electronic key system, the transmitting antennaIs located in the vicinity of the handle turning center of the instrument panel that rotates as the handle rotatesIt is characterized by being.
[0012]
In general, a user often performs an operation at a position close to the instrument panel, such as an operation of a switch arranged around the steering wheel or confirmation of an instrument as an operation when getting into the actual vehicle.
[0013]
In the present invention, since the transmission antenna is installed in the instrument panel of the actual vehicle, the request signal transmitted from the control device is output from the instrument panel of the actual vehicle. Therefore, it is possible to almost cover the range in which the user exists when the user performs an operation that can normally be taken when the user gets on the vehicle as the transmittable range. As a result, it is possible to reliably communicate with the electronic key carried by the user at least during the ride operation of the user on the actual vehicle and during travel.
[0014]
In addition, since the wiring between the control device and the transmitting antenna and the wiring of various instruments can be combined into one, the wiring path can be saved and the harness (connector) circuit can be reduced. As a result, it is possible to enjoy merits such as miniaturization, weight reduction, and cost reduction of electrical components.
[0015]
And when the said instrument panel has various instruments and the board | substrate for fixing these instruments, it is preferable to install the said transmission antenna in the said board | substrate. In this case, there is an advantage that the transmission antenna does not get in the way when the user looks at the instrument, and that the transmission antenna can be easily attached.
[0016]
  Furthermore, the transmitting antenna isInstrument panelOf these, it is preferable to be installed at a position near the seat. As a result, when the user is performing an operation at the time of boarding, the transmitting antenna is present at a position closest to the position where the user is present, and communication with the electronic key carried by the user is performed. Can be performed more reliably.
  The electronic key system for a motorcycle according to the second aspect of the present invention includes an electronic key that transmits a response signal based on reception of a request signal transmitted from a control device mounted on an actual vehicle, and a response from the electronic key. An electronic key system for a motorcycle having a receiving antenna for receiving a signal, wherein the receiving antenna is installed in the vicinity of a handle turning center in an instrument panel that rotates as the handle rotates. To do.
  In the motorcycle electronic key system according to the first and second aspects of the present invention described above, the antenna is disposed in a gap between a plurality of instruments fixed to the instrument panel.
  The actual vehicle may include a footrest portion that extends forward of the vehicle body from the instrument panel.
  The actual vehicle includes an actuator that locks a handle around the control device, and the control device outputs the request signal to the electronic key based on activation of the control device, and then from the electronic key. ID data based on the request signal is detected, and the ID data based on the request signal from the electronic key is detected based on an ON operation of a main switch of the actual vehicle after the control device is activated. After the coincidence of the ID is detected by the control device based on the activation of the control device and the power can be supplied, the lock can be released by the actuator, and the main switch is operated. By this, the power is supplied and the vehicle can run.
  In addition, an activation switch for generating the request signal is installed around the handle. In this case, the start switch may also be used as an operation switch installed around the handle.
  The electronic key may have a first transmission range, and the transmission antenna may have a second transmission range that is narrower than the first transmission range.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, according to the present inventionMotorcycleElectronic key systemofAn embodiment will be described with reference to FIGS.
[0018]
As shown in FIG. 1, an electronic key system 10 according to the present embodiment includes an electronic key 12 carried by a user (user) and a control device 14 mounted on an actual vehicle 100 (see FIG. 4). The electronic key 12 has a key shape with an IC chip incorporated therein, and an electronic key 12 with a card shape and an IC chip incorporated therein. When applied as a system, the shape of a card is used. In the present embodiment, description will be made assuming an electronic key 12 having a card shape.
[0019]
The electronic key 12 has the shape of a card as described above, and has a battery 20, a power supply circuit 22, a CPU 24, a reception circuit 26, and a transmission circuit 28 therein as shown in FIG.
[0020]
The power supply circuit 22 is a circuit that supplies power from the battery 20 to the reception circuit 26, the transmission circuit 28, and the CPU 24. The receiving circuit 26 has a receiving antenna (not shown), receives the request signal Sr and the like transmitted from the control device 14 through the receiving antenna, and extracts and demodulates the request signal Sr from the carrier wave. The demodulated signal is supplied to the CPU 24. The carrier frequency of the request signal Sr is 100 kHz to 300 kHz.
[0021]
The CPU 24 executes at least two computer programs (request signal checking means 30 and response signal generating means 32). The request signal checking unit 30 checks whether the signal supplied from the receiving circuit 26 is the request signal Sr. If the request signal Sr is the request signal Sr, the control is transferred to the response signal generating unit 32. The response signal generation means 32 reads ID data recorded in a ROM (not shown) based on a request from the request signal verification means 30, adds an attribute indicating a response to this ID data, and transmits it as transmission data Dt. To 28. The transmission circuit 28 has a transmission antenna (not shown), modulates a carrier wave based on transmission data Dt supplied from the CPU 24, and transmits the modulated signal as a response signal Sa through the transmission antenna. The carrier frequency of the response signal Sa is 200 MHz to 500 MHz.
[0022]
On the other hand, the control device 14 mounted on the actual vehicle 100 is constituted by, for example, a system LSI, and as shown in FIG. 3, for example, a power supply circuit 40, a CPU 42, a receiving circuit 44, a transmitting circuit 46, an input circuit 48, a first circuit. It has a drive circuit 52 (for actuator drive), a second drive circuit 54 (for main relay drive), and a third drive circuit 56 (for LED drive). Around the control device 14, at least a battery 60, a main switch 62, an actuator 64, a main relay 66, a warning lamp 68 (LED), a start switch 70, and a transmission antenna 72 are installed.
[0023]
The main switch 62 has two fixed contacts 62 a and 62 b and one movable contact 62 c, one fixed contact 62 a is connected to the battery 60, and the other fixed contact 62 b is connected to the main relay 66.
[0024]
The main switch 62 has two fixed contacts 62a and 62b and one movable contact 62c. One fixed contact 62a is connected to the battery 60, and the other fixed contact 62b is connected to the input circuit 48 and the main relay 66. Has been.
[0025]
In addition to the other fixed contact 62 b of the main switch 62, an activation switch 70 is connected to the input circuit 48. The ON / OFF state of the start switch 70 and the ON / OFF state of the main switch 62 are supplied to the CPU 42 through the input circuit 48.
[0026]
When the actual vehicle 100 is a scooter type, for example, as shown in FIG. 4, an activation switch 70 may be provided around the handle 102, the seat 104, or the vicinity of the seat 104.
[0027]
There is a space under the seat 104 in which a helmet (not shown) can be stored. Usually, when not riding, the helmet is stored in the space.
[0028]
Further, around the rear portion of the seat 104, a handle 106 (denoted as the seat handle 106 for distinguishing from the handle 102 steered by the driver) is provided at least when the seat 104 is manually opened and closed. Yes.
[0029]
Accordingly, examples of the installation location of the activation switch 70 include the inside of the seat handle 106 and the seat 104. When the activation switch 70 is provided on the seat handle 106, it is preferable that the seat switch 106 is provided on a portion of the seat handle 106 that is manually gripped when the user opens the seat 104. Further, when the activation switch 70 is provided inside the seat 104, it is preferable that the activation switch 70 is embedded at a position corresponding to a portion that the user puts on when opening the seat 104.
[0030]
Thereby, in order to take out the helmet, the user performs an operation of opening the seat 104, and at the same time, the activation switch 70 is turned on, and the operability related to activation of the electronic key system 10 can be improved.
[0031]
In addition, the start switch 70 can be set, for example, to any one of the operation switches used for starting the engine of the actual vehicle 100, security during traveling, and stopping the actual vehicle 100. Specifically, for example, as shown in FIG. 5, the activation switch 70 includes a lighting dimmer switch 122, a rear brake switch 124, a blinker switch 126, a horn switch 128, a front brake switch 130, a hazard installed around the handle 102. The switch 132 or the starter switch 134 can be set.
[0032]
For example, when the user purchases the actual vehicle 100, the activation switch 70 is determined in advance by a user, for example, by a contract with a dealer, and wiring is performed at the factory based on the determined items. For example, wiring for connecting the switch determined as the start switch 70 and the input circuit 48 of the control device 14 is performed at the factory.
[0033]
On the other hand, the power supply circuit 40 in the control device 14 supplies the power from the battery 60 to the CPU 42, the reception circuit 44, the transmission circuit 46, and the like.
[0034]
The receiving circuit 44 has a receiving antenna (not shown), receives the response signal Sa and the like transmitted from the electronic key 12 through the receiving antenna, extracts it from the carrier wave, and demodulates it. The demodulated signal is supplied to the CPU.
[0035]
The CPU 42 executes at least four programs (request signal generation means 80, response signal collation means 82, monitoring means 84, and peripheral instruction means 86).
[0036]
The request signal generation means 80 reads request data Dr (data that is the source of the request signal Sr) from a ROM (not shown) based on the ON operation of the start switch 70 and the main switch 62 and outputs the request data Dr to the transmission circuit 46. Further, the request signal generation means 80 reads request data Dr from the ROM and outputs it to the transmission circuit 46 at regular intervals after the engine is started. This fixed time is set to any time of 10 to 100 sec in consideration of the consumption of the battery 20 in the electronic key 12.
[0037]
The transmission circuit 46 modulates a carrier wave based on the request data Dr supplied from the CPU 42 and transmits the modulated carrier wave as a request signal Sr through the transmission antenna 72.
[0038]
As shown in FIGS. 6 and 7, the transmittable range of the request signal Sr is a spherical range having a radius of 1 to 1.5 m centered on the transmission antenna 72 attached to the actual vehicle 100 (circle A in FIGS. 6 and 7). And a narrower range than the transmission possible range of the response signal Sa (range of radius m around the electronic key 12).
[0039]
Therefore, in order to ensure communication with the electronic key 12 carried by the user at least during the ride operation of the user and during travel, the data is transmitted to the instrument panel 140 of the actual vehicle 100 as shown in FIG. An antenna 72 is preferably installed.
[0040]
The instrument panel 140 includes various instruments (such as a speedometer 142, a direction indicator (left) 144, a direction indicator (right) 146), and a substrate 148 for fixing these various instruments. In the present embodiment, the substrate 148 is made of a synthetic resin.
[0041]
The transmission antenna 72 is installed on the board 148 near the seat 104 (position on the near side of the user when the user is seated on the seat 104).
[0042]
Next, the response signal collating unit 82 collates whether or not the signal supplied from the receiving circuit 44 is the response signal Sa. If the signal is the response signal Sa, the ID data included in the response signal Sa is Then, it is verified whether or not it matches the ID data registered in the memory (not shown).
[0043]
Based on the output of the request signal Sr, the monitoring unit 84 monitors whether or not the response signal Sa has arrived (whether or not the ID match in the response signal matching unit 82 has been detected). When the request signal generation unit 80 waits for the response signal Sa from the time when the request data Dr is output, and the response signal Sa does not arrive within a predetermined time (the ID match is detected by the response signal verification unit 82) If not, the count value is updated by +1. Then, a warning signal Se is output to the third drive circuit 56 when the count value becomes equal to or greater than a predetermined value.
[0044]
In particular, when the response signal Sa does not arrive within a predetermined time from when the request data Dr is output based on the ON operation of the start switch 70 and the main switch 62, the warning signal Se is sent to the third drive at that stage. Output to the circuit 56.
[0045]
Further, the monitoring unit 84 activates the peripheral instruction unit 86 when the response signal Sa arrives within a predetermined time from the time when the request data Dr is output based on the ON operation of the activation switch 70. The peripheral instruction means 86 outputs a lock release signal to the first drive circuit 52 based on a request (unlock) from the monitoring means 84, and further outputs an ON signal to the second drive circuit 54.
[0046]
The first drive circuit 52 drives the actuator 64 based on the input of the lock release signal from the CPU 42 to release the lock state of the handle 102 and the seat 104.
[0047]
The second drive circuit 54 is turned on based on the input of the ON signal from the CPU 42, and then the engine starts when the main relay 66 is turned on by the main switch 62 being turned on. The vehicle is ready to run.
[0048]
The third drive circuit 56 drives the warning lamp 68 based on the input of the warning signal Se from the CPU 42, and the warning lamp 68 emits light. As this warning lamp 68, for example, an LED can be used.
[0049]
When the main switch 62 is turned off, the main relay 66 is turned off and the engine is also stopped simultaneously. Then, when the locking operation, for example, the handle 102 or the seat 104 is operated in the locked state, the verification operation of the response signal Sa in the control device 14 is stopped, and the second drive circuit 54 is also turned OFF.
[0050]
Next, processing operations of the electronic key system 10 according to the present embodiment will be described with reference to the timing charts of FIGS. 8A to 8E. The request signal Sr is a signal having a pulse train based on the request data Dr, and the response signal Sa is a signal having a pulse train based on data including ID data. However, in FIGS. 8A to 8E, the description is simplified. In order to achieve this, each is shown as a one-pulse signal.
[0051]
First, at a normal time, when the user operates the activation switch 70 with the electronic key 12 held at time t1 in FIG. 8A, a request signal Sr is transmitted from the control device 14 as shown in FIG. 8C. (See time t2) Communication with the electronic key 12 is started.
[0052]
When the user has the electronic key 12, the request signal Sr is received through the receiving circuit 26 (see FIG. 2) of the electronic key 12. Based on the reception of the request signal Sr, the electronic key 12 transmits a response signal Sa as shown in FIG. 8D (see time t3). The response signal Sa is supplied to the CPU 42 through the receiving circuit 44 (see FIG. 3) in the control device 14, and the ID data included in the response signal Sa is collated. If it is determined that the ID data match, the handle 102 and the seat 104 are unlocked (unlocked) through the control device 14 and the first drive circuit 52 as shown in FIG. t4). By releasing the lock, the steering wheel 102 can be steered and the seat 104 is lifted slightly upward, so that the user can easily recognize that the handle 102 and the seat 104 are unlocked. At this time, the second drive circuit 54 is turned on.
[0053]
Subsequently, at time t5 in FIG. 8B, when the user operates the main switch 62 with the electronic key 12 held, a request signal Sr is transmitted from the control device 14 as shown in FIG. 8C (see time t6). ), Communication with the electronic key 12 is performed.
[0054]
When the user has the electronic key 12, as described above, the electronic key 12 transmits the response signal Sa as shown in FIG. 8D based on the reception of the request signal Sr (see time t7). The response signal Sa is supplied to the CPU 42 through the receiving circuit 44 in the control device 14, and the ID data included in the response signal Sa is collated. If it is determined that the ID data match, the next step, that is, The process proceeds to a step of outputting the request signal Sr at every constant time τ.
[0055]
From this stage, the user is traveling in the actual vehicle 100, for example, and during this traveling, the request signal Sr is output from the control device 14 every predetermined time τ. That is, communication with the electronic key 12 is performed at regular time intervals τ, and a response signal Sa is output from the electronic key 12 at substantially regular intervals τ.
[0056]
The above-described processing operation shows the processing from when the user has the electronic key to get on the actual vehicle 100 until the user travels with the actual vehicle 100. Next, there is no electronic key 12 when the actual vehicle 100 is activated. The processing operation in the case of detecting is described briefly.
[0057]
First, when the user does not have the electronic key 12 and the start switch 70 is turned on, a request signal Sr is transmitted from the control device 14, and the control device 14 responds to the output request signal Sr. The signal Sa is not received. As a result, the warning signal Se is output from the monitoring means 84 to the third drive circuit 56, and thereby the warning lamp 68 is turned on. Of course, in this case, processing such as unlocking of the handle 102 and the seat 104 is not performed.
[0058]
The user notices that he / she does not have the electronic key 12 by turning on the warning lamp 68, and can avoid starting the engine in a state where the electronic key 12 is not held in advance.
[0059]
Next, the processing operation when it is detected that the electronic key 12 is not present when the engine of the actual vehicle 100 is started will be briefly described.
[0060]
First, when the user operates the start switch 70 with the electronic key 12 held, a request signal Sr is transmitted from the control device 14, and communication with the electronic key 12 is started. As a result of this communication, the ID data included in the response signal is collated, and if it is determined that the ID data match, the handle 102 and the seat 104 are unlocked.
[0061]
Subsequently, when the user turns on the main switch 62 without noticing that the electronic key 12 has been dropped, for example, the request signal Sr is transmitted from the control device 14. The response signal Sa to the signal Sr is not received. As a result, the warning signal Se is output from the monitoring means 84 to the third drive circuit 56, and thereby the warning lamp 68 is turned on.
[0062]
The user notices that the electronic key 12 has been dropped by turning on the warning lamp 68, and the loss of the electronic key 12 is avoided in advance.
[0063]
In particular, since the transmission antenna 72 is installed on the instrument panel 140 located above the actual vehicle 100, the transmittable range of the transmission antenna 72 is a range centering on the upper portion of the actual vehicle 100 as shown in FIG. Accordingly, the electronic key 12 is out of the transmittable range of the transmission antenna 72 almost simultaneously with the user accidentally dropping the electronic key 12 during the boarding operation. That is, almost simultaneously with the dropping of the electronic key 12, the warning lamp 68 emits light, and the user notices that the electronic key 12 has been dropped immediately.
[0064]
Next, the processing operation when it is detected that there is no electronic key 12 while the actual vehicle 100 is traveling will be briefly described.
[0065]
First, the processing from the ON operation of the start switch 70 to the ON operation of the main switch 62 is the same as the processing from time t1 to time t7 in FIGS. 8A to 8E.
[0066]
When the engine is started based on the ON operation of the main switch 62, the process proceeds to the step of outputting the request signal Sr every predetermined time τ as described above. From this stage, the user is traveling in the actual vehicle 100, for example, and during this traveling, the request signal Sr is output from the control device 14 every predetermined time τ.
[0067]
For example, when the electronic key 12 is dropped during traveling in the actual vehicle 100, the control device 14 does not receive the response signal Sa. The monitoring unit 84 updates the count value by +1 when the response signal Sa is not received within a predetermined time from the output time point of the request data Dr. In the process of sequentially outputting the request signal Sr, the warning signal Se is output from the monitoring unit 84 to the third drive circuit 56 when the count value becomes equal to or greater than the predetermined value. Will light up.
[0068]
The user notices that the electronic key 12 has been dropped by turning on the warning lamp 68, and the loss of the electronic key 12 is avoided in advance.
[0069]
By the way, the user usually performs an operation at a position close to the instrument panel 140 such as an operation of a switch arranged around the handle 102 or confirmation of instruments as an operation when getting into the actual vehicle 100.
[0070]
In the electronic key system 10 according to the present embodiment, the transmission antenna 72 (transmitting the request signal Sr) of the control device 14 is installed in the instrument panel 140 of the actual vehicle 100, and therefore transmitted from the control device 14. The request signal Sr is output from the instrument panel 140 of the actual vehicle 100.
[0071]
Therefore, it is possible to almost cover the range in which the user exists when the user performs an operation that can be normally performed when the user gets on the vehicle as the transmittable range. As a result, it is possible to reliably communicate with the electronic key 12 carried by the user at least during the ride operation of the user on the actual vehicle 100 and during travel.
[0072]
In addition, since the wiring between the control device 14 and the transmission antenna 72 and the wiring of various instruments can be combined into one, the wiring path can be saved and the harness (connector) circuit can be reduced. Advantages such as downsizing, weight reduction, and cost reduction of the key system 10 and by extension, electrical components can be enjoyed.
[0073]
In particular, in this embodiment, since the transmission antenna 72 is installed on the board 148 of the instrument panel 140, the transmission antenna 72 does not get in the way when the user looks at the instrument. There is an advantage that 72 can be easily attached. In this embodiment, since the substrate 148 is made of synthetic resin, the transmission antenna 72 can be easily attached to the gaps of various instruments in the substrate 148.
[0074]
Furthermore, in this embodiment, the transmission antenna 72 is installed at a position near the sheet 104 on the substrate 148. As a result, when the user performs an operation at the time of boarding, the transmission antenna 72 is present at a position closest to the position where the user is present, and communication with the electronic key 12 carried by the user is performed. This can be done more reliably.
[0075]
Next, two modified examples of the electronic key system 10 according to the present embodiment will be described with reference to FIGS.
[0076]
First, the electronic key system 10a according to the first modification has substantially the same configuration as the electronic key system 10 according to the first embodiment described above, but as shown in FIG. 140 is different in that a transmission unit 160 is installed.
[0077]
As shown in FIG. 10, the transmission unit 160 separates the transmission circuit 46 from the control device 14 configured by a system LSI to form one electronic component 162, and electrically connects the electronic component 162 to the transmission antenna 72. And unitized.
[0078]
The electronic key system 10b according to the second modified example has substantially the same configuration as the electronic key system 10 according to the present embodiment described above. However, as shown in FIG. The difference is that 170 is installed.
[0079]
As shown in FIG. 12, the transmission / reception unit 170 separates the reception circuit 44 and the transmission circuit 46 from the control device 14 configured by a system LSI, and the reception circuit 44 and the transmission circuit 46 are integrated. One electronic component 172, and the transmission circuit 46 of the electronic component 172 and the transmission antenna 72 are electrically connected to form a unit.
[0080]
Whether the electronic key system 10 according to the present embodiment or the electronic key systems 10a and 10b according to the first and second modifications described above is adopted depends on the size of the actual vehicle 100, the wiring path, the transmission antenna 72, etc. What is necessary is just to select suitably in consideration of installation space.
[0081]
  It should be noted that according to the present inventionMotorcycleThe electronic key system for use is not limited to the above-described embodiment, but can of course adopt various configurations without departing from the gist of the present invention.
[0082]
【The invention's effect】
  As described above, according to the present inventionMotorcycleAccording to the electronic key system for use, it is possible to reliably perform communication with the electronic key carried by the user at least during a ride operation on the actual vehicle and during traveling.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an electronic key system according to an embodiment.
FIG. 2 is a block diagram showing a configuration of an electronic key.
FIG. 3 is a block diagram illustrating a configuration of a control device.
FIG. 4 is an explanatory diagram showing an example in which a start switch is installed in the vicinity of a seat or a seat when the actual vehicle is of a scooter type.
FIG. 5 is an explanatory diagram showing an example of operation switches (switches that can be cited as activation switch candidates) around the steering wheel in an actual vehicle and an example of installing a transmission antenna on an instrument panel.
FIG. 6 is a side view showing an example of an installation position of a transmission antenna on an actual vehicle.
FIG. 7 is a plan view showing an example of an installation position of a transmission antenna on an actual vehicle.
8A to 8E are timing charts showing processing operations of the electronic key system according to the present embodiment.
FIG. 9 is an explanatory diagram showing an example in which a transmission unit of an electronic key system according to a first modification is installed in an actual vehicle.
FIG. 10 is a block diagram illustrating a configuration of a control device and a transmission unit in an electronic key system according to a first modification.
FIG. 11 is an explanatory diagram showing an example in which a transmission / reception unit of an electronic key system according to a second modification is installed in an actual vehicle.
FIG. 12 is a block diagram illustrating a configuration of a control device and a transmission / reception unit in an electronic key system according to a second modification.
[Explanation of symbols]
10, 10a, 10b ... Electronic key system 12 ... Electronic key
14 ... Control device 72 ... Transmitting antenna
140 ... Instrument panel 148 ... Board
160 ... Transmission unit 170 ... Transmission / reception unit

Claims (9)

In an electronic key system for a motorcycle having a control device mounted on an actual vehicle and an electronic key that transmits a response signal based on reception of a request signal transmitted from the control device via a transmission antenna,
The electronic key system for motorcycles , wherein the transmitting antenna is arranged in the vicinity of a steering wheel turning center in an instrument panel that rotates as the steering wheel rotates . In an electronic key system for a motorcycle having an electronic key for transmitting a response signal based on reception of a request signal transmitted from a control device mounted on an actual vehicle, and a receiving antenna for receiving a response signal from the electronic key.
The electronic key system for a motorcycle according to claim 1, wherein the receiving antenna is disposed in the vicinity of a steering wheel turning center in an instrument panel that rotates as the steering wheel rotates. The electronic key system for a motorcycle according to claim 1 or 2,
Before Kia container, said among the instrument panel, an electronic key system for a motorcycle characterized in that it is installed in the position of the seat closer. The electronic key system for a motorcycle according to claim 1 or 2,
The electronic key system for a motorcycle, wherein the antenna is disposed in a gap between a plurality of instruments fixed to the instrument panel. The electronic key system for a motorcycle according to claim 1 or 2,
An electronic key system for a motorcycle, wherein the actual vehicle includes a footrest portion extending forward of the vehicle body from the instrument panel. The electronic key system for a motorcycle according to claim 1 or 2,
The actual vehicle includes an actuator that locks a handle around the control device,
The control device detects the ID data based on the request signal from the electronic key after outputting the request signal to the electronic key based on activation of the control device,
The control device detects the ID data based on the request signal from the electronic key based on an ON operation of a main switch of the actual vehicle after the control device is activated,
The actual vehicle can be unlocked by the actuator after the ID coincidence is detected by the control device based on the activation of the control device and power can be supplied. The electronic key system for a motorcycle is characterized in that the power is supplied and the vehicle is allowed to travel by being operated. The electronic key system for a motorcycle according to claim 1 or 2,
An electronic key system for a motorcycle, wherein an activation switch for generating the request signal is installed around a steering wheel. The electronic key system for a motorcycle according to claim 7,
The electronic key system for a motorcycle, wherein the start switch is also used as an operation switch installed around a handle. The electronic key system for a motorcycle according to claim 1,
The electronic key has a first transmission range;
The electronic key system for a motorcycle, wherein the transmission antenna has a second transmission range that is narrower than the first transmission range.

Images