JP2018052297A - Mutual authentication system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mutual authentication system for a vehicle, the system being able to cope with a situation such as a loss of a portable key through a simple configuration.SOLUTION: When wireless mutual authentication initiated according to an operation of a starter switch 21c is established, a CPU 200 informs the establishment of the wireless mutual authentication by means of an indicator 19a. When the starter switch 21c is continuously operated for a third predetermined time while the wireless mutual authentication remains not established, the CPU causes the transition of an operation mode for the mutual authentication system to an emergency mode that enables mutual authentication different from the wireless mutual authentication, and also informs of the transition of the operation mode by turning on the light of an indicator 19a. In a case where wireless mutual authentication is not established, the CPU keeps the light of the indicator 19a off. In the emergency mode, a code number for establishing mutual authentication is recognized by the number of times that the starter switch 21c is operated.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle mutual authentication system, and more particularly to a vehicle mutual authentication system for permitting unlocking of a vehicle and starting of a drive source.

  Conventionally, by performing wireless mutual authentication between a portable key having a wireless communication function and a communication means provided on the vehicle body side, vehicle unlocking and drive source starting are permitted. Mutual authentication systems are known.

  Patent Document 1 discloses a configuration in which wireless mutual authentication between a communication unit and a portable key is started when a dial switch as an ignition switch provided in a motorcycle is pressed. ing.

Japanese Patent No. 4603828

  Here, in the mutual authentication system using the mobile key, it is necessary to prepare for an emergency in which the mobile key is lost or the battery of the mobile key is exhausted and wireless communication cannot be performed. Specifically, by providing a key cylinder that can be operated with a spare physical key and a coupler that is connected to a dedicated inspection machine, it is possible to temporarily release the lock and start the drive source without using a portable key. It is possible to make it possible.

  However, if a key cylinder or coupler is provided, the number of parts and the cost increase, and problems such as a complicated structure and increased restrictions on the body layout arise. In patent document 1, such a subject was not examined.

  An object of the present invention is to provide a vehicle mutual authentication system that solves the above-described problems of the prior art and can cope with loss of a portable key with a simple configuration.

  In order to achieve the above object, the present invention provides a vehicle body side control unit (200) that performs wireless mutual authentication with a portable key (150), and a vehicle body side switch (21c) that instructs the start of the wireless mutual authentication. In addition, in the vehicle mutual authentication system including the vehicle body side display means (19a) for displaying the wireless mutual authentication state, the vehicle body side control unit (200) responds to the operation of the vehicle body side switch (21c). When the started wireless mutual authentication is established, the vehicle body side display means (19a) informs that the wireless mutual authentication is established, while the wireless mutual authentication is not established, the vehicle body side switch (21c ) Is continuously operated for a predetermined time (T3), an emergency mode (F4) that enables mutual authentication different from the wireless mutual authentication as the operation mode of the mutual authentication system. Causes a transition, there is first characterized in that notifies that the transition to the emergency mode (F4) by the vehicle body-side display means (19a).

  Further, when the wireless mutual authentication is established, the vehicle body side control unit (200) notifies that the wireless mutual authentication is established by turning on the vehicle body display means (19a), while the wireless mutual authentication is established. When authentication is not established, there is a second feature in that the vehicle body side display means (19a) is kept off.

  Further, the emergency mode (F4) is a code number input waiting mode for establishing the mutual authentication, and the vehicle body side control unit (200) determines the code according to the number of operations of the vehicle body side switch (21c). The third feature is that the number is recognized.

  The code number is composed of a plurality of digits, and the vehicle body side control unit (200) causes the vehicle body side display unit (19a) of the vehicle body side display unit (19a) to move to the next digit when the code number waiting to be input is shifted to the next digit. A fourth feature is that the display is switched.

  Further, the vehicle body side buzzer (24) is provided, and the vehicle body side control unit (200) performs the transition to the emergency mode (F4) and the completion of mutual authentication by inputting the code number. 24) There is a fifth feature in that each is notified by 24).

  Furthermore, the vehicle body side switch (21c) has a sixth feature in that it also serves as a starter switch for starting the drive source (P) of the vehicle.

  According to the first feature, when the wireless mutual authentication started in response to the operation of the vehicle body side switch (21c) is established, the vehicle body side control unit (200) uses the vehicle body side display means (19a). When the wireless mutual authentication is informed, and the vehicle body side switch (21c) is continuously operated for a predetermined time (T3) while the wireless mutual authentication is not established, the mutual authentication system The operation mode is changed to the emergency mode (F4) enabling mutual authentication different from the wireless mutual authentication, and the vehicle body side display means (19a) is changed to the emergency mode (F4). Therefore, an instruction to start wireless mutual authentication and an instruction to transition to emergency mode when wireless mutual authentication is not established are transmitted by a single switch. It is possible to row. Thereby, without providing a dedicated switch or mechanism for transitioning to the emergency mode, the cost can be reduced by avoiding an increase in the number of parts and a complicated mechanism. Since the state of wireless mutual authentication and the transition state to the emergency mode can be confirmed by the vehicle body side display means, a user-friendly mutual authentication system that is easy to operate can be obtained.

  According to the second feature, when the wireless mutual authentication is established, the vehicle body side control unit (200) informs that the wireless mutual authentication is established by turning on the vehicle body side display means (19a). On the other hand, when the wireless mutual authentication is not established, the vehicle body side display means (19a) is kept off, so that the vehicle body side display means does not light even when the vehicle body side switch is operated. Can be recognized and the occupant can be prompted to switch to the emergency mode by operating the vehicle body side switch.

  According to a third feature, the emergency mode (F4) is a code number input waiting mode for establishing the mutual authentication, and the vehicle body side control unit (200) is configured to switch the vehicle body side switch (21c). Since the code number is recognized based on the number of operations, the vehicle body side switch for starting the wireless mutual authentication is also used as the code number input means, so that a special input device or the like is not required and an increase in cost can be suppressed. In addition, since the code number can be input according to the number of operations of the vehicle body side switch, it is possible to avoid complication of operation.

  According to the fourth feature, the code number is composed of a plurality of digits, and the vehicle body side control unit (200) causes the vehicle body side control unit (200) to input the code number on the vehicle body side every time the digit waiting for input of the code number shifts to the next digit. Since the display of the display unit (19a) is switched, it is possible to suppress an increase in cost by using the vehicle body side display unit that notifies the establishment of the wireless mutual authentication as the notification means for the input timing of the code number.

  According to a fifth feature, the vehicle body side buzzer (24) is provided, and the vehicle body side control unit (200) completes mutual authentication by transitioning to the emergency mode (F4) and inputting the code number. Since the vehicle body side buzzer (24) provides the notification, the vehicle body side buzzer notifies the vehicle body side state more easily.

  According to the sixth feature, since the vehicle body side switch (21c) also serves as a starter switch for starting the drive source (P) of the vehicle, the starter switch is also used for starting the wireless mutual authentication and inputting the code number. Thus, no special input device or the like is required, and an increase in cost can be suppressed. In addition, the operation of starting the drive source can be smoothly performed after the authentication by the input of the code number is established.

1 is a left side view of a motorcycle to which a vehicle mutual authentication system according to an embodiment is applied. FIG. 3 is an enlarged view around a steering handle of a motorcycle viewed from the driver's viewpoint. It is an enlarged view around a handle lock module. 1 is a block diagram illustrating an overall configuration of a mutual authentication system for a vehicle according to the present embodiment. It is a state transition diagram concerning each operation mode of a mutual authentication system. It is a time chart which shows the flow from establishment of wireless mutual authentication to turning on of main SW. It is a time chart which shows the flow from mutual wireless authentication failure to mutual authentication establishment by the input of a code number. It is a time chart which shows the flow which returns from emergency mode F4 to standby mode F2. It is a time chart which shows the flow which returns from the authentication completion mode F5 to the standby mode F2. It is a time chart which shows the flow which returns to standby mode F2 by mutual authentication failure by the input of a code number.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a left side view of a motorcycle 1 to which a vehicle mutual authentication system according to this embodiment is applied. The motorcycle 1 is a scooter type straddle-type vehicle provided with a low floor 12 on which a driver's foot is placed between a steering handle 2 and a seat 14. A head pipe 34 that pivotally supports a steering stem 33 connected to the lower portion of the steering handle 2 is fixed to the front end of the vehicle body frame 18. A pair of left and right front forks 11 that rotatably support the front wheel WF are fixed to the lower portion of the steering stem 33.

  The front and rear of the steering handle 2 are covered with a front handle cowl 3 and a rear handle cowl 5 that support the headlight 4 and the meter device 19. Further, the front side and the front side of the head pipe 34 and the steering stem 33 are covered with a front center cover 20 and a pair of left and right front side covers 8, and the rear side is covered with an upper rear cover 7 and an under rear cover 40. Between the front center cover 20 and the front side cover 8, a pair of left and right front combination lamps 9 are arranged as a vehicle lighting device in which a front position light and a flasher lamp are housed in an integral housing. A pair of left and right under cowls 32 are connected to both ends of the low floor 12 in the vehicle width direction. The vehicle body front side of the under cowl 32 is connected to the lower end portion of the front side cover 8.

  A lower part of the seat 14 is covered with a seat cowl 13, and a unit swing type power unit P in which an engine as a drive source and a transmission are integrally formed is swingable at a position behind the low floor 12. It is pivotally supported. A rear end portion of the power unit P that rotatably supports the rear wheel WR as a drive wheel is suspended from the vehicle body by a rear cushion 17, and an air cleaner box 15 is attached to the upper portion of the power unit P. A rear combination lamp 16 in which rear flasher lamps are integrally formed on the left and right sides of the tail lamp is attached to the rear end portion of the seat cowl 13, and a rear fender 23 is disposed below the rear combination lamp 16. A front fender 10 that covers the front wheel WF is attached to the front fork 11, and a buzzer 24 is housed in front of the head pipe 34.

  FIG. 2 is an enlarged view around the steering handle 2 of the motorcycle 1 from the viewpoint of the driver. A rear handle cowl 5 that covers the steering handle 2 from the rear side supports a meter device 19 including a speedometer and a fuel gauge. An engine stop switch 21a, a hazard lamp switch 21b, and an engine starter switch (S / SW) 21c are disposed at a position to the right of the rear handle cowl 5. Further, an optical axis changeover switch 22a, a horn switch 22b, and a flasher lamp switch 22c are disposed at a position on the left side of the rear handle cowl 5.

  In the motorcycle 1 according to this embodiment, wireless mutual authentication is performed between a portable key (see FIG. 4) having a wireless communication function and a communication device 50 provided on the vehicle body side, thereby unlocking or A mutual authentication system for a vehicle that allows the engine to start is applied. The communication device 50 as the vehicle body side communication unit according to the present embodiment includes both a transmission unit and a reception unit necessary for wireless mutual authentication with the portable key. The meter device 19 is provided with an indicator 19a as vehicle body side display means for performing display according to the mutual authentication system.

  The upper rear cover 7 is connected to an upper end portion of an under rear cover 40 (stipple portion) as a first resin cover connected to the front end portion of the low floor floor 12. An oil filler lid 31 is disposed at the center of the under rear cover 40 in the vehicle width direction. A folding hook 30 for hanging a shopping bag or the like is attached to the center of the upper rear cover 7 above the fuel filler lid 31.

  On the left side of the upper rear cover 7 in the vehicle width direction, a storage space lid 29 that can be opened by operating the knob 28 is provided. Further, on the right side in the vehicle width direction of the upper rear cover 7, a handle lock module 60 is provided as a lock device including a main switch and a dial switch that functions as an operator of the handle lock mechanism. The communication device 50 is disposed in front of the vehicle body of the handle lock module 60 and on the right side in the vehicle width direction.

  FIG. 3 is an enlarged view around the handle lock module 60. On the operation plate 61 of the handle lock module 60, a dial switch 62 as a main switch (M / SW) for turning on / off the main power source and locking / unlocking the handle lock by a turning operation, and an opening operation of the fuel filler lid 31 and A so-called seesaw-type swing switch 63 that opens the seat 14 and a partition plate 64 that prevents erroneous operation of the swing switch 63 when the dial switch 62 is operated are provided. In the present embodiment, the dial switch 62 and the swing switch 63 are configured to be operable when wireless mutual authentication between the portable key and the communication device 50 is established.

  The dial switch 62 is a three-position type with the main switch ON position and the handle lock position sandwiching the main switch OFF position. Normally, when the occupant leaves the motorcycle 1, it is set to the OFF position where the main power is turned off, or the handle lock position where the steering handle 2 is held in the steering state as well as the main power is turned off. Then, when the occupant performs a locking operation using the portable key, or when the occupant holding the portable key leaves the communicable range and a predetermined time has elapsed, the solenoid activates the lock mechanism to swing the dial switch 62 and the swing switch. The switch 63 is configured to be inoperable. Therefore, when the occupant operates the motorcycle 1 again, it is necessary to establish wireless mutual authentication with the portable key and unlock the dial switch 62 and the swing switch 63.

  This wireless mutual authentication is executed by sending a response signal from the portable key side in response to a request signal transmitted from the vehicle body side. However, if a trigger switch for transmitting a request signal is provided on the portable key side, the portable key is Since it becomes difficult to cope with loss or the like, it is preferable to provide this on the vehicle body side. However, if a trigger switch is newly provided, the number of parts and the cost increase. Therefore, in this embodiment, the starter switch 21c that starts the driving source of the motorcycle 1 is also used as a trigger switch for sending a request signal. Simplification and cost reduction.

  Furthermore, in this embodiment, even if the mobile key is lost or the battery is exhausted and wireless mutual authentication is not possible, the mutual authentication system can be operated as a temporary measure. A feature is that an operator for switching to (emergency mode) is also used as the starter switch 21c.

  FIG. 4 is a block diagram showing the overall configuration of the vehicle mutual authentication system according to the present embodiment. In the present embodiment, a CPU 200 as a vehicle body side control unit is provided inside a communication device 50 that performs wireless communication with the portable key 150. The starter SW function switching means 220 in the CPU 200 functions as a starter switch 21c according to the situation of the mutual authentication system, an engine start switch, a trigger switch for transmitting a request signal from the vehicle body side, and a mutual authentication system. There are four modes: a switch for switching to the corresponding mode and a code number input switch for mutual authentication. The CPU 200 prevents the start of the engine by the starter switch 21c until the mutual authentication is completed.

  The portable key 150 is provided with an answer back switch 151 and a remote control power switch 152. When the answerback switch 151 is pressed, a buzzer sounds and a flasher lamp blinks, which makes it easy to find the vehicle even in a parking lot at night. Further, by pressing the remote control power switch 152, the power on / off of the portable key 150 can be switched, and the battery of the portable key 150 can be saved.

  As another embodiment of the portable key 150, a configuration in which an unlocking switch 151 and a locking switch 152 are provided is conceivable. In this case, the wireless mutual authentication can be started by operating the unlocking switch 151 of the portable key 150.

  The CPU 200 includes a power supply circuit 201, an input circuit 202, a starter circuit 203, an encryption signal circuit 204, a starter SW input circuit 205, a wireless transmission / reception unit 206, a flasher lamp driving circuit 207, a buzzer driving circuit 208, a solenoid driving circuit 209, and an indicator. A drive circuit 210 is connected.

  The power supply circuit 201 is supplied with power from a 12V on-vehicle battery via the fuse 100. Connected to the input circuit 202 are a registration mode switch 101 for shifting the operation mode of the mutual authentication system to a registration mode F3 shown in FIG. 5, and a main switch 62 formed of a dial switch. A main switch 62 and front and rear brake switches 102 and 103 are connected in series to the starter circuit 203, so that a brake operation can be applied to the engine start conditions.

  The starter circuit 203 and the cipher signal circuit 204 are connected to the FI-ECU 104 that performs fuel injection and ignition control of the engine. In principle, other conditions are satisfied unless the portable key 150 is registered in the CPU 200. Also, the engine is configured not to start.

A flasher lamp switch 22c (see FIG. 2) is connected in parallel to a flasher lamp driving circuit 207 that supplies power to the front and rear flasher lamp light sources.
The function of the flasher lamp driving circuit 207 is to supply power to the front and rear flasher lamp light sources 106 according to the operation of the flasher lamp switch 22c when the main switch 62 is on, and to lock the state by operating the portable key 150. As an informing means for such a case, an operation mode of supplying power to the flasher lamp light source 106 even when the main switch 62 is off may be added.

  The buzzer drive circuit 208 supplies power to the buzzer 24 as a notification unit when wireless mutual authentication is established.

  The solenoid drive circuit 209 drives the solenoid 107 built in the handle lock module 60 according to various conditions, and permits or prohibits the operation of the main switch (dial switch) 62 and the swing switch 63. Moreover, the indicator drive circuit 210 notifies the occupant of the operating state of the mutual authentication system by causing the indicator 19a provided in the meter device 19 to emit light.

  FIG. 5 is a state transition diagram according to each operation mode of the mutual authentication system. In the description of the transition conditions in the figure, the dial switch 62 is indicated as M / SW (main switch), and the starter switch 21c is indicated as S / SW.

  When the push switch S / SW is turned on, if the M / SW is on and at least one of the front and rear brake switches 102 and 103 is on (condition 1), the mode transits to the running mode F1. The traveling mode F1 corresponds to a case where the engine is started after the establishment of the wireless mutual authentication or a state where the S / SW is operated during traveling.

  When the S / SW is turned on and the M / SW is turned off and the wireless mutual authentication is established (condition 2), the state transits to the authentication completion mode F5. In the authentication completion mode F5, the dial switch (M / SW) 62 and the swing switch 63 are unlocked.

  When M / SW is turned on (condition 5) in the authentication completion mode F5, a transition is made to the engine startable mode F7. When the S / SW is turned on in the engine startable mode F7, the engine is started. On the other hand, when the M / SW is off and the locking condition is satisfied (condition 15), the mode is changed to the standby mode F2. The locking condition is that the occupant performs a locking operation using the portable key or the portable key 150 leaves the communication range and a predetermined time elapses.

  Also, when the S / SW is turned on, if the wireless SW is not established (condition 3) due to the main SW being off and the loss of the portable key 150 or the like (condition 3), the state transits to the standby mode F2. In the standby mode F2, the locked state of the dial switch (M / SW) 62 and the swing switch 63 is maintained. On the other hand, in the traveling mode F1, when the M / SW is off and the locking condition is satisfied (condition 6), the mode transits to the standby mode F2.

  Then, in the standby mode F2, when the S / SW is turned on for 4 seconds or more (condition 10), the state transits to the emergency mode F4. The emergency mode F4 is a mode for receiving a code number for performing mutual authentication in an emergency without using wireless communication.

  In the emergency mode F4, when the end condition is satisfied (condition 11), the process returns to the standby mode F2, and when mutual authentication is satisfied (condition 4), the process shifts to the authentication completion mode F5. The end conditions of emergency mode F4 are: (1) Authentication is established by entering a code number, (2) Starter SW is not turned on within 5 seconds after transition to emergency mode F4, (3) Code Before the number is input, the starter SW is turned on for 2 seconds or longer, (4) the indicator flashing is completed after the code number input failure, or the starter SW is turned on for 2 seconds or more.

  The registration mode F3 and the setting mode F6 are modes corresponding to special applications, respectively. The registration mode F3 is a mode for newly registering a portable key corresponding to a vehicle, and is mainly applied in a factory, a store, or the like. When the registration mode switch 101 is turned on in the standby mode F2, a transition is made to the registration mode F3. In the registration mode F3, a new portable key is registered by a predetermined operation, and the process returns to the standby mode F2 when the M / SW off and registration mode SW off end condition is satisfied (condition 13).

  On the other hand, the setting mode F6 is a mode in which a mobile key having another code number is additionally set in a state where a registered mobile key exists. If the S / SW is turned on for 4 seconds or more in the authentication completion mode F5 (condition 7), the mode changes to the setting mode F6. In the setting mode F6, additional registration of the portable key is performed by a predetermined operation, the engine is shifted to the engine startable mode F7 when the M / SW is turned on (condition 8), and the standby mode F2 is entered when the end condition is satisfied (condition 9). Return. The end condition of the setting mode F6 is set such that (1) the starter SW is not turned on within 5 seconds after the transition to the setting mode F6, (2) the starter SW is turned on for 2 seconds or more when the code number is input. The

  A feature of the mutual authentication system according to the present embodiment is that the wireless mutual authentication is started by operating the starter switch 21c, and the transition to the emergency mode F4 is performed by operating the starter switch 21c when the wireless mutual authentication is not established. The input of the code number in the emergency mode F4 can be executed by the starter switch 21c. Hereinafter, various operation modes of the mutual authentication system will be described with reference to the time charts of FIGS.

  FIG. 6 is a time chart showing a flow from establishment of wireless mutual authentication to turning on of the main switch 62. 6 to 10, from the top, a starter switch (starter SW) 21c, a main switch (main SW) 62, a request signal from the vehicle body side as an LF signal, a response signal from the portable key 150 side as an UHF signal, an indicator 19a, the on / off state of the solenoid 107 and the buzzer 24 is shown.

  At time t = 0 in FIG. 6, the main SW is off and the mutual authentication between the portable key 150 and the CPU 200 is not performed. When the starter SW is operated at time t1, a request signal is transmitted from the wireless transmission / reception unit 206 on the vehicle body side. At time t2, a response signal is transmitted in response to the request signal, and wireless mutual authentication is established at time t3. At this time t3, the indicator is turned on, the lock is released by turning on the solenoid, and the buzzer 24 is notified. The notification by the buzzer 24 is executed by repeatedly turning on a predetermined time Ta (for example, 0.35 seconds) and turning it off for a predetermined time Tb (for example, 0.35 seconds).

  At time t5, the occupant who has recognized the establishment of the wireless mutual authentication switches on the main SW, and the engine can be started. The indicator is turned on at time t6 when a first predetermined time T1 (for example, 2 seconds) has elapsed since the main SW was turned on. In addition, after the main SW is turned on, the request signal is transmitted again at time t7. This is so that the wireless mutual authentication is repeated every second predetermined time T2 (for example, 30 seconds) while the main SW is on. This is because it is set. Thereby, for example, it is possible to take measures such as notifying the indicator when the wireless mutual authentication is not established by dropping the portable key 150 during traveling.

  FIG. 7 is a time chart showing a flow from establishment of wireless mutual authentication to establishment of mutual authentication by inputting a code number. At time t10, since the indicator and buzzer do not operate after the starter SW is operated and the main SW is also inoperable, a passenger who recognizes that wireless mutual authentication has not been established is to switch the mutual authentication system to the emergency mode F4. , Start long press of starter SW.

  At time t11 when a third predetermined time T3 (4 seconds in the present embodiment) has elapsed from time t10, in order to notify that the mode has been switched from the standby mode F2 to the emergency mode F4 (see FIG. 5), Flashing starts.

  At time t12, the starter SW is operated to recognize that the mode has been switched to the emergency mode F4 and to input to the CPU 200 that there is an intention to input the code number. In response to this, the CPU 200 turns on the buzzer only for a very short fifth predetermined time T5 in order to notify the passenger that the code number is ready for input.

  In the present embodiment, the code number is also input by the starter SW. The starter SW function switching means 220 (see FIG. 4) switches so as to recognize the ON signal from the starter SW as the code number input signal in accordance with the ON operation of the starter SW at time t12.

  The code number according to the present embodiment is a multi-digit number (for example, 9 digits) consisting of 0, 1, and 2. Basically, when 1 is input, the starter SW is turned on once within a predetermined time. When 2 is input, the starter SW is turned on twice. When 0 is input, the starter SW is not operated within the predetermined time. Although a number is input, in the present embodiment, the following settings are applied to facilitate code input.

  First, in response to the starter SW being turned on at time t12, a countdown timer for a predetermined time T6 (for example, 5 seconds) is started. Here, if the starter SW is not operated before the predetermined time T6 elapses, the code number of the first digit is recognized as “0”. However, in the example of FIG. 7, the time t13 when the time T4 has elapsed from the time t12. The first starter SW operation for inputting the code number is performed.

  The CPU 200 sets a predetermined time T6 every time there is a starter SW operation for inputting a code number. Specifically, if the starter SW is operated before the predetermined time T6 elapses, the predetermined time T6 is set as an extension time at that time, and if the starter SW is not operated during this extended time, the code number is set to “1”. If the starter SW is operated during the extension time, the code number is recognized as “2”.

  In the example of FIG. 7, although the predetermined time T6 as the extension time is set according to the operation of the starter SW performed at the time t13, the starter SW has not been operated by the time t14 when the extension time elapses. The indicator is turned off to recognize that the number is recognized as “1” and that the first digit is recognized and the second digit can be input.

  The turn-off time of the indicator started at time t14 is set to a short time (for example, 0.3 seconds), and a predetermined time T6 related to the second digit input operation is set at time t14-1. In the example of this figure, since the starter SW has not been operated from time t14-1 to time t15 when the predetermined time T6 has elapsed, the extension time is not set and the code number of the second digit is recognized as “0”. At the time t15, the indicator is turned off to prompt input of the third digit. According to the setting of the predetermined time T6 as described above, since a predetermined time is newly set every time the starter SW is pressed for inputting the code number, a margin can be made in the input time, and the code number input operation can be performed. Becomes easy.

  After time t15, the code numbers up to the eighth digit are sequentially input in the same way as the first and second digits, and at time t16, the ninth digit is input. At time t17, the indicator is turned off for a short time (eg, 0.3 seconds) in order to notify the completion of the code number input.

  Then, when mutual authentication is established by the input code number, the CPU 200 turns on the indicator at time t18, turns on the solenoid 107, and operates the buzzer 24 twice in a short time to notify the occupant. . At time t19, the occupant who has recognized that mutual authentication has been established by inputting the code number turns on the main SW, and the indicator turns off at time t20 after a predetermined time.

  When the main SW is turned on at time t19, the operation mode of the mutual authentication system transits to the engine startable mode F7 (see FIG. 5), so the engine is started by turning on the starter SW. However, this time chart shows a flow when the engine is not started even if the main SW is turned on at time t19 after the mutual authentication is established at time t17, and the main SW is turned off at time t21.

  When the main SW is turned off at time t21, the indicator is turned on accordingly. When the occupant who recognizes the lighting of the indicator starts to press and hold the starter SW at time t22, the engine startable mode F5 transitions to the standby mode F2 at the time t23 when the eighth predetermined time T8 (for example, 2 seconds) has elapsed. At the same time, notification by a flasher lamp light source and a buzzer is performed.

  FIG. 8 is a time chart showing the flow of returning from the emergency mode F4 to the standby mode F2. As shown in the explanation of FIG. 5, when the end condition is satisfied in the emergency mode F4, the process returns to the standby mode F2. However, in this time chart, 5 seconds after the transition to the emergency mode F4 in the end condition. The case where the end condition is satisfied when the starter SW is not operated within is shown.

  At time t20, the occupant who recognizes that the wireless mutual authentication is not established starts to press and hold the starter SW in order to switch the mutual authentication system to the emergency mode F4. At a time t21 when a ninth predetermined time T9 (4 seconds in the present embodiment) has elapsed from the time t20, the indicator starts to flash in order to notify that the standby mode F2 has been switched to the emergency mode F4. .

  In this time chart, since there is no operation of the starter SW from time t21 to time t22 when a tenth predetermined time t10 (for example, 5 seconds) has elapsed, the code number input acceptance state is not entered, and Transition from the Regency mode F4 to the standby mode F2.

  FIG. 9 is a time chart showing a flow of returning from the authentication completion mode F5 to the standby mode F2. The flow until the main SW is turned off at time t21 is the same as the time chart of FIG. The difference between the two is that, in the time chart of FIG. 7, after the main SW is turned off at time t21, the starter SW is operated by the occupant's intention to change from the engine startable mode F7 to the standby mode F2. In this time chart, after the main SW is turned off at time t21, even when the main SW is left as it is, it automatically shifts to the standby mode F2. Specifically, the CPU 200 transitions from the engine startable mode F5 to the standby mode F2 at time t24 when an eleventh predetermined time T11 (for example, 6 minutes) has elapsed after turning off the main switch 62 at time t21, and Notification by a flasher lamp light source and a buzzer is performed.

  FIG. 10 is a time chart showing a flow of returning to the standby mode F2 when mutual authentication is not established due to the input of a code number. The code number of the ninth digit is input at time t16. At time t17, the flow until the indicator is turned off for a short time (eg, 0.3 seconds) in order to notify the completion of input of the code number is shown in FIG. It is the same as the time chart.

  In this time chart, mutual authentication is not established due to an incorrect input of a code number at time t25, and notification by blinking of the indicator is started from time t25. The CPU 200 activates the mutual authentication system together with the buzzer notification at the time t27 when the three times of turning off and turning on at the same twelfth predetermined time T12 (for example, 1 second) as the time from the time t25 to the time t26 is completed. Transition from the emergency mode F4 to the standby mode F2.

  As described above, according to the mutual authentication system for vehicles according to the present embodiment, when the wireless mutual authentication started in response to the operation of the starter switch 21c is established, the indicator 19a notifies that the wireless mutual authentication has been established. On the other hand, when the starter switch 21c is continuously operated for the third predetermined time T3 in a state where the wireless mutual authentication is not established, the operation mode of the mutual authentication system enables the mutual authentication different from the wireless mutual authentication. Since the transition to the emergency mode F4 is made and the transition to the emergency mode F4 is notified by the indicator 19a, when the wireless mutual authentication start instruction and the wireless mutual authentication are not established, the emergency mode F4 is entered. The instruction to transition can be executed by a single switch. Thereby, without providing a dedicated switch or mechanism for shifting to the emergency mode F4, it is possible to reduce the cost by avoiding an increase in the number of parts and complication of the mechanism. Further, since the establishment state of the wireless mutual authentication and the transition state to the emergency mode F4 can be confirmed by the indicator 19a, a user-friendly mutual authentication system that is easy to operate can be obtained.

  The operation mode of the mutual authentication system, the transition conditions between the operation modes, the structure and configuration of the handle lock module, the mode of the CPU, etc., various time settings shown in the time chart, and notification means such as a flasher lamp and buzzer The driving mode and the like are not limited to the above-described embodiment, and various changes can be made. For example, the indicator as the vehicle body side display means may be an LED light source, a display on a liquid crystal screen, or the like. Further, the drive source of the vehicle may be a motor. In this case, after the main switch is turned on, the vehicle can be configured to be able to run by pressing the starter switch. In the mutual authentication based on the code number input, if a plurality of digits “0” are included in the code number, it is possible to easily increase the number of digits and facilitate the code input operation while improving the anti-theft property.

  In the above embodiment, it is assumed that the handle lock mechanism is a mechanical type in which the handle lock pin protrudes by rotating the dial switch, but this can be driven by a solenoid. When the handle lock pin is driven by a solenoid, for example, the handle lock is automatically released upon completion of mutual authentication by inputting the code number, and the engine can be started and the engine can be operated without turning the dial switch. It can be configured to be startable. Furthermore, it may be configured such that the engine can be started by operating the starter switch while operating the brake as the engine startable state is released while the mutual authentication by the code number input is completed. The vehicle mutual authentication system according to the present invention is not limited to a motorcycle, and can be applied to various vehicles such as a saddle riding type three- or four-wheeled vehicle. In addition, this system has high operability because mutual approval can be completed with a single operation switch even in an emergency state.

  DESCRIPTION OF SYMBOLS 1 ... Motorcycle (saddle-type vehicle), 19 ... Meter apparatus, 19a ... Indicator (vehicle body side display means), 21c ... Starter switch (S / SW, vehicle body side switch), 24 ... Buzzer (vehicle body side buzzer), 50 ... Communication device, 62 ... Dial switch (M / SW, main switch), 200 ... CPU (vehicle body side control unit), F2 ... Standby mode, F4 ... Emergency mode, F5 ... Authentication completion mode, F7 ... Engine start possible mode

When the main SW is turned off at time t21, the indicator is turned on accordingly. When occupant recognize the lighting of the indicator initiates a long press of the starter SW at time t22, the eighth predetermined time T8 (e.g., 2 seconds) at the time t23 has elapsed, the standby mode F2 from the engine start enabling mode F 7 At the same time, the flasher lamp light source and the buzzer are notified.

And in this time chart, the tenth predetermined time from time t21 T 10 (eg, 5 seconds) since there is no operation of the starter SW until the time t22 has passed, does not enter the input reception state code number, Transition from emergency mode F4 to standby mode F2.

FIG. 9 is a time chart showing a flow of returning from the authentication completion mode F5 to the standby mode F2. The flow until the main SW is turned off at time t21 is the same as the time chart of FIG. The difference between the two is that, in the time chart of FIG. 7, after the main SW is turned off at time t21, the starter SW is operated by the occupant's intention to change from the engine startable mode F7 to the standby mode F2. In this time chart, after the main SW is turned off at time t21, even when the main SW is left as it is, it automatically shifts to the standby mode F2. For more information, CPU 200, after turning off the main switch 62 at time t21, the 11 predetermined time T11 (for example, 6 minutes) at time t24 has elapsed, with a transition to the standby mode F2 from the engine start enabling mode F 7 A notification by a flasher lamp light source and a buzzer is performed.

Claims (6)

A vehicle body side control unit (200) that performs wireless mutual authentication with the portable key (150), a vehicle body side switch (21c) that instructs the start of the wireless mutual authentication, and a vehicle body that displays the state of the wireless mutual authentication In the vehicle mutual authentication system having the side display means (19a),
When the wireless mutual authentication started in response to the operation of the vehicle body side switch (21c) is established, the vehicle body side control unit (200) has established the wireless mutual authentication by the vehicle body side display means (19a). ,
On the other hand, when the vehicle body side switch (21c) is continuously operated for a predetermined time (T3) in a state where the wireless mutual authentication is not established, the operation mode of the mutual authentication system is different from the wireless mutual authentication. Transition to emergency mode (F4) enabling authentication, and notification of transition to emergency mode (F4) by vehicle body side display means (19a) system. When the wireless mutual authentication is established, the vehicle body side control unit (200) informs that the wireless mutual authentication is established by turning on the vehicle body side display means (19a),
On the other hand, when the wireless mutual authentication is not established, the vehicle body side display means (19a) maintains the extinguished state of the vehicle. The emergency mode (F4) is a code number input waiting mode for establishing the mutual authentication,
The vehicle mutual authentication system according to claim 1 or 2, wherein the vehicle body side control unit (200) recognizes the code number based on the number of operations of the vehicle body side switch (21c). The code number is composed of a plurality of digits,
The said vehicle body side control part (200) switches the display of the said vehicle body side display part (19a), whenever the digit which waits for the input of the code number shifts to the next digit. Vehicle mutual authentication system. It has a buzzer (24) on the vehicle body,
The vehicle body side control unit (200) notifies the transition to the emergency mode (F4) and the completion of mutual authentication by inputting the code number by the vehicle body side buzzer (24), respectively. 5. The vehicle mutual authentication system according to claim 3 or 4.   The vehicle mutual authentication system according to any one of claims 3 to 5, wherein the vehicle body side switch (21c) also serves as a starter switch for starting a vehicle drive source (P).