JP5817411B2 - Vehicle control system - Google Patents

Description

  The present invention relates to a vehicle control system, and in particular, when a user directly carries a vehicle key and when carrying the vehicle key in a bag or the like, the control mode for the control device is made different. Thus, the present invention relates to a vehicle control system that improves convenience for the user.

  In the current vehicle control system that uses, for example, an electronic key as a vehicle key, there is no concept of “mode” in the vehicle key, and the electronic key is determined in advance based on the vehicle based on the idea that the person directly carries it. Depending on whether or not an electronic key is detected in the area, permission to open and close the vehicle door, start the engine, etc. is given. In the electronic key system as described above, the control device mounted on the vehicle is provided with a mode selector switch that can be selectively switched between the normal mode and the power saving mode, and the user sets the power saving mode. Therefore, a technique for preventing the battery of the vehicle from running out is known (see Patent Document 1 below).

JP 2006-037396 A

  By the way, unlock the vehicle door with the electronic key in the bag and start the engine, or register multiple electronic keys, and put one of the electronic keys inside the car along with the bag and luggage. More and more cases are left unattended. In this case, in the current vehicle control system, there are a concept of enabling the function of the electronic key in the vehicle and a concept of invalidating the function. According to the former concept, when a person is present in the vehicle, the person can get out of the vehicle without activating the alarm device or the like, while it is difficult to prevent the vehicle from being stolen using the electronic key. On the contrary, according to the latter way of thinking, although it is possible to prevent theft of the vehicle using the electronic key in the vehicle, an alarm device or the like is activated when a person in the vehicle tries to go outside the vehicle. There are many disadvantages regardless of which approach is adopted.

  The present invention has been made to address the above-described problems, and its purpose is to eliminate the above disadvantages and improve user convenience by incorporating the concept of “mode” into a vehicle key. It is to provide a vehicle control system.

Means for Solving the Problems and Effects of the Invention

In order to achieve the above object, a vehicle control system of the present invention includes:
A vehicle key capable of wirelessly transmitting pre-registered data; and
A receiver mounted on a vehicle and capable of wirelessly receiving data transmitted wirelessly by a vehicle key;
Control means mounted on the vehicle and controlling the in-vehicle device based on the data received wirelessly by the receiver,
The vehicle key includes a first mode that is set when the occupant is directly carrying the vehicle key, and a second mode that is set when the occupant is indirectly carrying the key. Mode switching means capable of being switched alternatively is provided, the vehicle key can wirelessly transmit data indicating the mode set by the mode switching means to the receiver, and the control means includes It is assumed that the control mode for the control device is different between the case where the mode 1 is set and the case where the second mode is set. Here, the vehicle key is, for example, an electronic key (keyless system key) that locks or unlocks a vehicle door automatically or semi-automatically and that can start an engine by pressing a start switch provided on the vehicle. ), A wireless key (remote key for a remote keyless system) having an input operation unit for locking or unlocking a vehicle door and a mechanical key unit inserted into an ignition switch.

In the vehicle control system having the above premise configuration , when the vehicle key is indirectly carried through the belongings in the first mode set when the vehicle key is carried directly by the occupant. Mode switching means is provided which can be switched alternatively to the second mode set to.

  Thus, when the vehicle key is in the vehicle, for example, when the first mode is set in the mode switching means, that is, when the occupant is directly carrying the operation, the operation using the vehicle key is enabled. The second mode is set in the mode switching means, that is, the occupant is indirectly carrying it while maintaining the above (allowing the operation using the vehicle key) In such a case (when it can be estimated that the vehicle key is in the baggage etc.), the operation using the vehicle key is invalidated (the operation using the vehicle key is prohibited). The used vehicle can be prevented from being stolen.

In this case, the control means, on condition that the second mode is set in the mode switching means of the vehicle key when the vehicle key is detected outside the vehicle in the parked state, The notification unit as the control device can be configured to perform notification control.

  When the second mode is set in the mode switching means and the vehicle key is detected from the inside of the vehicle to the outside of the vehicle, it is estimated that the vehicle key has been taken out of the vehicle against the intention of the occupant. Can do. Therefore, in this case, it is possible to improve the security by performing notification control on the notification means, for example, to automatically issue a warning and notification.

  The control means is also provided that the second mode is set in the mode switching means of the vehicle key when the vehicle key is outside the vehicle and is detected within a predetermined distance from the vehicle. The opening / closing body as the control device can be driven and controlled. Here, the opening / closing body means a control device that is automatically opened by a control means such as a power window in addition to a control door such as a power slide door or a power back door.

  When the second mode is set in the mode switching means, if the vehicle key is detected within a predetermined distance from the vehicle outside the vehicle, for example, the occupant has a load and the hand is blocked. It can be estimated that the vehicle has returned to the vehicle in a state. Therefore, in this case, it is possible to improve the convenience of the occupant by driving and controlling control doors such as a power slide door and a power back door to automatically unlock and open, for example.

In the premise configuration, the vehicle key is in the vehicle in the parked state, the second mode is set in the vehicle key mode switching means, and the vehicle door is switched from the locked state to the unlocked state. on the condition that was the control means is characterized in that the notification control the notification unit as a control device.

  If the vehicle door is switched from the locked state to the unlocked state when the vehicle key is in the vehicle in the parked state and the second mode is set in the mode switching means, the vehicle door is It can be estimated that it has been unlocked. Therefore, in this case, it is possible to improve the security by performing notification control on the notification means, for example, to automatically issue a warning and notification.

Further, in the above premise configuration, when the vehicle key is in the vehicle in the parking state and the first mode is set in the vehicle key mode switching means, the control means prohibits the notification control of the notification means. It is characterized by doing .

  Even when the vehicle door is switched from the locked state to the unlocked state in the parked state, if the vehicle key is in the vehicle and the first mode is set in the mode switching means, the vehicle door is driven by the passenger in the vehicle. Can be estimated to have been unlocked. Therefore, in this case, it is possible to improve the convenience of the passengers in the vehicle by prohibiting the notification control of the notification means.

The block diagram which shows the structure of the control system for vehicles of this invention containing an electronic key. The flowchart which concerns on Example 1 of this invention and shows the control program performed by the control part for vehicles of FIG. The flowchart which concerns on Example 2 of this invention and shows the control program performed by the control part for vehicles of FIG. The flowchart which concerns on Example 3 of this invention and shows the control program performed by the control part for vehicles of FIG. The flowchart which concerns on Example 4 of this invention and shows the control program performed by the control part for vehicles of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a vehicle control system according to the present invention that includes an in-vehicle device 10 and an electronic key 20.

  The vehicle control unit 11 (ECU) of the in-vehicle device 10 is composed of a microcomputer having a CPU, ROM, RAM, input / output unit (I / O) and the like as main components. The vehicle control unit 11 repeatedly executes the control program of FIG. 2 stored in the ROM. ID data unique to the electronic key 20 is registered in the memory 12 in advance, and the vehicle control unit 11 collates the received data with the data in the memory 12 (authentication).

  The vehicle control unit 11 includes transmitters 13 and 14 (outdoors and indoors) including an antenna and a known modulation circuit unit (not shown), a tuner, and a known demodulation circuit unit (not shown). A receiver 15 (UHF receiver) is connected.

  The transmitter 13 (outdoor) is provided in a driver's seat, a passenger seat, left and right rear seats, and a trunk (or back door) of the vehicle. The entrance door and the trunk correspond to the vehicle door of the present invention. The transmitter 13 is built in, for example, the handle portion of each door, and periodically transmits an inquiry signal (request signal) around the transmitter. The output of this inquiry signal is adjusted so as to reach only within a predetermined key response area (door lock area, detection area) of about 70 cm to 1 m from each door. Thereby, only the electronic key 20 existing in the key response area can receive this inquiry signal.

  The transmitter 14 (indoor) is provided, for example, indoors, and periodically transmits an inquiry signal to the vehicle interior. The output of this inquiry signal is adjusted so as to reach only within a predetermined key response area in the passenger compartment. Thereby, only the electronic key 20 existing in the key response area can receive this inquiry signal.

  The receiver 15 is incorporated in, for example, a vehicle pillar unit, decodes a response signal from the electronic key 20 in each key response area, and sends the response signal to the vehicle control unit 11.

  Various control units 31 such as a door lock SW, a door unlock SW, and an engine SW are connected to the vehicle control unit 11, and each control unit such as the door lock control unit 41 can communicate with each other via the in-vehicle LAN 100. It is connected.

  Of the SW 31, the door lock SW is provided, for example, at the handle portion of each door. The door lock SW is composed of, for example, a push button type mechanical switch, a capacitance type touch sensor, and the like, and transmits an ON signal thereof to the vehicle control unit 11. In response, the vehicle control unit 11 switches the door lock mechanism 42 to the locked state via the door lock control unit 41 on condition that ID authentication of the electronic key 20 is performed.

  Of the SWs 31, the door unlock SW is provided, for example, at the handle portion of the driver's seat door. The door unlock SW is composed of, for example, a push button mechanical switch, a capacitive touch sensor, and the like, and transmits an ON signal to the vehicle control unit 11. In response to this, the vehicle control unit 11 switches the door lock mechanism 42 to the unlocked state via the door lock control unit 41 on condition that ID authentication of the electronic key 20 is performed. In addition, you may provide door unlock SW in each door separately.

  The engine SW of the SW 31 is configured by, for example, a push button type mechanical switch, and transmits an ON signal to the vehicle control unit 11. In response, the vehicle control unit 11 starts the engine via an engine control unit (not shown) on condition that ID authentication of the electronic key 20 is performed. The vehicle control unit 11 corresponds to the control means of the present invention.

  The electronic key 20 functions as a portable wireless device capable of receiving an inquiry signal from the in-vehicle device 10 or transmitting ID data unique to the electronic key 20, and has a known modulation circuit unit. A transmission unit 21 (UHF transmission unit), a reception unit 22 (LF reception unit) having a known demodulation circuit unit, a key control unit 24, a memory 25, and a mode switching SW 26 are provided.

  The key control unit 24 is composed of a microcomputer whose main components are a CPU, ROM, RAM, input / output unit (I / O), and the like, and transmits ID data stored in the memory 25 via the transmission unit 21. To the receiver 15 of the in-vehicle device 10.

  The mode switching SW 26 is set when the passenger is carrying the electronic key 20 directly (first mode) and when carrying it indirectly via personal belongings such as bags or luggage. For example, it is a push button type switch that can be switched alternatively to the package mode (second mode) to be switched, and the mode is switched alternately for each ON operation. The key control unit 24 transmits the mode set by the mode switching SW 26 to the receiver 15 of the in-vehicle device 10 via the transmission unit 21 in addition to the ID data stored in the memory 25.

  Next, the operation of the first embodiment configured as described above will be described based on the control program of FIG. In the first embodiment, it is assumed that a plurality (for example, two) of electronic keys 20 are registered, one of which is owned by the driver, and the other one is placed in the vehicle. At present, when the vehicle is parked and the vehicle door is in a locked state, for example, when an intruder is detected by an intrusion sensor (not shown) provided in the vehicle, the vehicle control unit 11 controls the host vehicle. A warning mode is set in which a buzzer 51 (control device, notification means) is provided and a warning mode is set to notify an external service center.

  The electronic key 20 placed in the vehicle transmits ID data and data including the mode set by the mode switching SW 26 to the in-vehicle device 10 in response to an inquiry signal from the transmitter 14. When receiving the data from the electronic key 20 (S11: YES), the vehicle control unit 11 collates the received ID data with master ID data (master ID code) registered in the memory 12 in advance.

  If the vehicle control unit 11 determines that the ID data matches (authentication is accepted) and the baggage mode is set in the mode switching SW 26 (S12: YES), the vehicle is currently set in the alert mode. (S13). In this case, if the vehicle is in the parking state (the engine is stopped and the shift is in the parking position) and all the vehicle doors are in the locked state, it is determined that the warning mode is set. When the alert mode is set (S13: YES), if the detected position of the electronic key 20 is in the vehicle (S14: NO), the execution of this control program is terminated. Thereafter, as long as the detection position of the electronic key 20 is in the vehicle, the processes of steps S11 to S14 are repeatedly executed.

  When the detection position of the electronic key 20 is outside the vehicle from the state where the processes of steps S11 to S14 are repeatedly executed (S14: YES), the vehicle control unit 11 sounds the buzzer 51 (control device, notification means). At the same time, an external service center is notified (S15). Since the luggage mode is a mode set when the electronic key 20 is placed in the vehicle together with the luggage, the fact that it is detected outside the vehicle from the state detected in the vehicle means that the electronic key 20 Is taken out of the car. Therefore, in this case, it is possible to prevent theft of the luggage and the like by blowing the buzzer 51 and reporting to the outside.

  On the other hand, when a passenger other than the driver remains in the vehicle and the person mode is set in the mode switching SW 26, the vehicle control unit 11 determines that the person mode is set in the mode switching SW 26 (S12). : NO), the execution of this control program is terminated. Therefore, in this case, even if the passenger in the vehicle goes out of the vehicle, the buzzer 51 is not sounded and notification to the outside is not performed, so the convenience of the passenger can be improved.

  In the first embodiment, it is required that the vehicle is set in the warning mode in advance. However, the present invention is not limited to this. For example, as shown in the following second embodiment, the vehicle may not be set in the warning mode. The present invention can be implemented. In the second embodiment, the vehicle control unit 11 is configured to execute, for example, the control program of FIG. 3 in addition to or instead of the control program of FIG. Other configurations are the same as those of the first embodiment.

  Next, the operation of the second embodiment will be described based on the control program of FIG. Also in the second embodiment, it is assumed that a plurality (for example, two) of electronic keys 20 are registered, one of which is owned by the driver, and the other one is placed in the vehicle.

  The electronic key 20 placed in the vehicle transmits ID data and data including the mode set by the mode switching SW 26 to the in-vehicle device 10 in response to an inquiry signal from the transmitter 14. When receiving the data from the electronic key 20 (S21: YES), the vehicle control unit 11 collates the received ID data with master ID data (master ID code) registered in the memory 12 in advance.

  When the vehicle control unit 11 determines that the ID data matches (authentication accepted) and the mode switching SW 26 determines that the luggage mode is set (S22: YES), the vehicle door is unlocked from the locked state. It is determined whether or not it has been switched to (S23). When switched to the unlocked state (S23: YES), when the switching operation is performed by another electronic key 20 (S24: YES), the execution of this control program is terminated.

  On the other hand, when it is switched to the unlocked state (S23: YES) and the switching operation is not performed by the other electronic key 20 (S24: NO), the vehicle control unit 11 sets the buzzer 51 on. Sounds and reports to an external service center (S25). When the baggage mode is set in the mode switching SW 26, if the vehicle door is switched from the locked state to the unlocked state without using the other electronic key 20, it is estimated that there has been an illegal intrusion into the vehicle. can do. Therefore, in this case, it is possible to prevent theft of the vehicle and the luggage, etc. by blowing the buzzer 51 and reporting to the outside.

  On the other hand, when a passenger other than the driver remains in the vehicle and the person mode is set in the mode switching SW 26, the vehicle control unit 11 determines that the person mode is set in the mode switching SW 26 (S22). : NO), the execution of this control program is terminated. Therefore, in this case, as in the first embodiment, even if the passenger in the vehicle goes out of the vehicle, the buzzer 51 is not blown and notification to the outside is not performed, so the convenience of the passenger can be improved.

  In the first and second embodiments, when the mode switching SW 26 of the electronic key 20 in the vehicle is switched to the luggage mode, if it can be estimated that there has been an intrusion action into the vehicle, the buzzer 51 is blown, In addition, the security is improved by reporting to the outside. However, the present invention is not limited to this, and the present invention can be implemented, for example, as shown in Example 3 below. In the third embodiment, the vehicle control unit 11 is configured to execute, for example, the control program of FIG. 4 in addition to or instead of the control program of FIGS. Other configurations are the same as those of the first embodiment.

  Next, the operation of the third embodiment will be described based on the control program of FIG. Also in the third embodiment, it is assumed that a plurality (for example, two) of electronic keys 20 are registered, one of which is owned by the driver, and the other one is placed in the vehicle.

  The electronic key 20 placed in the vehicle transmits ID data and data including the mode set by the mode switching SW 26 to the in-vehicle device 10 in response to an inquiry signal from the transmitter 14. When receiving the data from the electronic key 20 (S31: YES), the vehicle control unit 11 collates the received ID data with master ID data (master ID code) registered in the memory 12 in advance.

  If the vehicle control unit 11 determines that the ID data matches (authentication is accepted) and the baggage mode is set in the mode switching SW 26 (S32: YES), the electronic key 20 is detected in the in-car area. It is determined whether or not (S33). When the electronic key 20 is detected in the in-vehicle area (S33: YES), the operation using the electronic key 20 is invalidated (S34). Thereby, theft of the vehicle by the electronic key 20 in the vehicle can be well prevented.

  On the other hand, when a passenger other than the driver remains in the vehicle and the person mode is set in the mode switching SW 26, the vehicle control unit 11 determines that the person mode is set in the mode switching SW 26 (S32). : NO), the execution of this control program is terminated. Therefore, in this case, since the operation using the electronic key 20 in the vehicle is permitted, the convenience of the passenger can be improved.

  In the first to third embodiments, it is assumed that a plurality (for example, two) of electronic keys 20 are registered and one of them is placed in the vehicle. However, the present invention is not limited to such a premise. As shown in Example 4, the present invention can be implemented even when one electronic key 20 is used. In the fourth embodiment, the vehicle control unit 11 is configured to execute, for example, the control program of FIG. 5 in addition to or instead of the control program of FIGS. In addition, as indicated by a broken line in FIG. 1, in relation to the door lock mechanism 42, a control door 43 (control device, opening / closing body including a power slide door (PSD) and a power back door (PBD) that can be automatically opened). ), And a power window 44 (P / W) (control device, opening / closing body) that can be automatically opened.

  Specifically, when the vehicle control unit 11 transmits a door unlock control signal and a door opening operation signal to the door lock control unit 41, the door lock control unit 41 drives the door lock mechanism 42 to enter the locked state. After unlocking a certain door, the control door 43 is opened or the power window 44 is opened. Other configurations are the same as those of the first embodiment.

  Next, the operation of the fourth embodiment configured as described above will be described based on the control program of FIG. The electronic key 20 outside the vehicle transmits ID data and data including the mode set by the mode switching SW 26 to the in-vehicle device 10 in response to the inquiry signal from the transmitter 13. When receiving the data from the electronic key 20 (S41: YES), the vehicle control unit 11 collates the received ID data with master ID data (master ID code) registered in the memory 12 in advance.

  When the vehicle control unit 11 determines that the ID data matches (authentication is accepted) and the baggage mode is set in the mode switching SW 26 (S42: YES), the electronic key 20 is a predetermined distance from the vehicle. It is determined whether or not it is detected in the vehicle outside area (S43). When the electronic key 20 is detected in the outside area (S43: YES), the control door 43 is switched from the locked state to the unlocked state, and the door lock control unit 41 is controlled so as to be further opened (S44). Alternatively, the door lock control unit 41 is controlled so that the power window 44 is opened (S44).

  When the electronic key 20 located outside the vehicle approaches the vehicle and the baggage mode is set in the mode switching SW 26, it can be estimated that the occupant has the baggage. Therefore, in this case, the convenience of the passenger can be improved by automatically opening the control door 43 and / or the power window 44.

  On the other hand, when the person mode is set in the mode switching SW 26, the vehicle control unit 11 determines that the person mode is set in the mode switching SW 26 (S42: NO), and ends the execution of this control program. To do. When the person mode is set in the mode switching SW 26, it can be estimated that the returning passenger's hand is empty, so the control door 43 is not automatically opened.

  When the power back door (PBD) constituting the control door 43 is automatically opened, for example, in a vehicle employing a shift-by-wire system, the shift is electronically switched from the parking position to the drive position, and the engine is started. In order to facilitate opening of the power back door (PBD), the vehicle can be configured to move forward slightly.

(Modification)
In the first to fourth embodiments, the case where the electronic key 20 is used as the vehicle key has been described. For example, as shown by a broken line in FIG. 1, the input operation unit 27 that locks or unlocks the vehicle door, and the ignition A wireless key (remote key for a remote keyless system) having a mechanical key portion (not shown) to be inserted into the switch and capable of transmitting / receiving data to / from the in-vehicle device 10 is the same as when the electronic key 20 is used. The present invention can be implemented.

DESCRIPTION OF SYMBOLS 10 In-vehicle apparatus 11 Control part for vehicles (control means)
13, 14 Transmitter 15 Receiver 20 Electronic key (vehicle key)
26 Mode switching SW (Mode switching means)
41 Door lock control unit 42 Door lock mechanism 43 Control door (control device, opening / closing body)
44 Power window (control equipment, opening and closing body)
51 Buzzer (control device, notification means)

Claims (3)

A vehicle key capable of wirelessly transmitting pre-registered data; and
A receiver mounted on a vehicle and capable of wirelessly receiving data wirelessly transmitted by the vehicle key;
Control means mounted on a vehicle and controlling a control device based on data wirelessly received by the receiver; and
The vehicle key has a first mode that is set when the occupant is directly carrying the vehicle key, and a second mode that is set when the occupant is indirectly carrying the key. Mode switching means that can be alternatively switched, and the vehicle key can wirelessly transmit data indicating the mode set by the mode switching means to the receiver, and the control means includes: In the mode switching means, the control mode to the control device is different between the case where the first mode is set and the case where the second mode is set ,
The control means has the vehicle key in the vehicle in a parking state, the second mode is set in the mode switching means of the vehicle key, and the vehicle door is switched from the locked state to the unlocked state. The vehicle key is in the vehicle in a parked state, and the first mode is set in the vehicle key mode switching unit. If there is, a vehicle control system that prohibits the notification control of the notification means .   The control means is provided on the condition that the second mode is set in the mode switching means of the vehicle key when the vehicle key is detected outside the vehicle after being detected inside the vehicle in a parked state. The control system for vehicles according to claim 1 which carries out information control of the information means as said control equipment.   The control means that the second mode is set in the mode switching means of the vehicle key when the vehicle key is outside the vehicle and is detected within a predetermined distance from the vehicle. The vehicle control system according to claim 1, wherein, as a condition, driving control of the opening / closing body as the control device is performed.

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