JP5161476B2 - Smart entry system for vehicles - Google Patents

Description

  The present invention relates to a vehicle smart entry system, and more particularly to a vehicle smart entry system having a smart entry function and at least one of a keyless entry function and an auto-relock function.

  In recent years, smart entry systems having a smart entry function have been put into practical use. For example, the smart entry function automatically unlocks the door only by approaching the vehicle and automatically locks the door only by leaving the vehicle. In this case, specifically, the door is automatically unlocked when the portable device enters the operating area formed in the vicinity of the vehicle, and the door is automatically unlocked when the portable device exits from the operating area. Is locked. On the other hand, a smart entry system having a keyless entry function is also known (see, for example, Patent Documents 1 to 4). The keyless entry function is a function that allows the door to be locked and unlocked by remote control operation, and this function enables the user to lock and unlock the door by their own will.

  However, in this case, for example, after the user unlocks the door by the keyless entry function outside the operation area, the user may leave the place without forgetting to lock the door. In other words, a situation may occur in which the vehicle is left with the doors unlocked. For this reason, there is also known a smart entry system having an auto-relock function so that an unlocked door can be automatically locked (see, for example, Patent Document 5). This auto-relock function is a function that automatically locks the unlocked door after a predetermined time.

Japanese Patent No. 2970638 JP 2000-80826 A JP 2001-98813 A JP 2002-4675 A Japanese Patent No. 3667272

  In the case of a smart entry system that also has a keyless entry function, competition between the smart entry function and the keyless entry function becomes a problem. On the other hand, it can be said that the techniques proposed in Patent Documents 1 to 4 are common techniques in that the keyless entry function is prioritized. However, with these technologies, for example, even when a user who is about to get on makes a mistake, the unlocked door is locked. For this reason, in these proposed technologies, there is a risk that the user may reduce convenience in that the user must operate the remote controller again to unlock the door. The technique proposed in Patent Document 1 includes the case where priority is given to the smart entry function. In this case, the user can freely lock and unlock the door using the keyless entry function in the operation area. Inconvenient results may be caused in that it cannot be performed. Therefore, it is considered that Patent Document 1 mainly focuses on the case where priority is given to the keyless entry function.

  On the other hand, in the case of a smart entry system that also has an auto-relock function, the door may be automatically locked by the auto-relock function before the user trying to get on the door opens the door. You will have to unlock the door by operating the remote control. On the other hand, according to the technique proposed in Patent Document 5, the smart entry function is prioritized over the auto-relock function, so that the inconvenience can be solved. However, in the technique proposed in Patent Document 5, since the smart entry function is always prioritized in the operation area, the auto-relock function cannot be enabled in the operation area.

  Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a highly convenient vehicle smart entry system having at least one of a keyless entry function or an auto-relock function. .

  In order to solve the above problems, the present invention includes a portable device, a remote operation means, and a control device, and locks a door according to the separation of the portable device from the vehicle and / or the vehicle. A smart entry system for a vehicle having a first smart entry function for unlocking a door in accordance with the approach of a portable device and a keyless entry function for locking or unlocking a door in accordance with an operation of the remote operation means. The control device, when the portable device is in an operating area outside the vehicle compartment, depending on whether the door is locked or unlocked, the door lock control based on the keyless entry function or Keyless entry function control means for permitting or prohibiting unlock control is provided.

  According to the present invention, unlike the case where the keyless entry function is simply prioritized, the door lock control or unlock control based on the keyless entry function is permitted or prohibited depending on whether the door is locked or unlocked. it can. For this reason, according to the present invention, the keyless entry function can be enabled or disabled as necessary, so that the convenience of the smart entry system of the vehicle is enhanced as compared with the technology that simply prioritizes the keyless entry function or the smart entry function. be able to. In addition, including the case of the invention described below, the remote operation means may be configured as a part of the portable device or may be configured separately from the portable device.

  In the present invention, the keyless entry function control means may prohibit the door lock control based on at least the keyless entry function when the door is unlocked. Specifically, for example, by prohibiting the door lock control based on the keyless entry function as described above, it is possible to avoid the possibility that the door is locked due to an erroneous operation. As described below, the present invention is different from a technology that simply gives priority to the smart entry function in that the door unlock control based on the keyless entry function can be permitted when the door is in a locked state, for example. .

  In the present invention, the keyless entry function control means may permit the door unlock control based on at least the keyless entry function when the door is in a locked state. In addition, for example, by permitting door unlock control based on the keyless entry function as described above, the door is locked due to a malfunction or the like even though the portable device is located in the operation area outside the passenger compartment. Even in this case, the user can freely unlock the door. Note that the present invention is different from the technology that simply gives priority to the keyless entry function in that the door lock control based on the keyless entry function can be prohibited when the door is unlocked as described above.

  Further, the present invention may further include an auto-relock function for locking the door when a predetermined time has elapsed after the door is unlocked. Here, although the portable device is located in the operating area outside the passenger compartment, a situation where the door is locked may occur specifically when an auto-relock function is provided, for example. For this reason, it can be said that permitting door unlock control based on the keyless entry function when the door is in a locked state is particularly suitable when the auto-relock function is provided.

  The present invention further includes an anti-theft function for issuing an alarm to prevent theft, and when the alarm is issued by the anti-theft function, the remote operating means is an operating means for stopping the alarm. The control device may be provided with an alarm stop means for functioning as: According to the present invention, since the operation means for stopping the alarm is not newly required, the cost of the portable device can be reduced, and the troublesomeness of using the operation means in the situation where it is desired to stop the alarm is reduced. Therefore, the convenience of the smart entry system for vehicles can be enhanced.

  In the present invention, the portable device may further include a remote trunk release operation means, and the control device may further include a trunk release control means for controlling the release of the trunk in accordance with the operation of the remote trunk release operation means. According to the present invention, the trunk can be easily released from the outside of the passenger compartment, so that the convenience of the smart entry system of the vehicle can be enhanced.

  In addition, the present invention is configured to further include manual operation means provided in the vehicle, and when the portable device is present in the operating area, the door is locked or locked according to the operation of the manual operation means. A second smart entry function for unlocking may be provided instead of the first smart entry function or together with the first smart entry function. Moreover, as a smart entry function, you may provide the 2nd smart entry function like this invention, for example. Also in this case, for example, when the door is unlocked, the door lock control based on the keyless entry function is prohibited, so that the door can be prevented from being locked by an erroneous operation. Also in this case, it is possible to prevent the door from being locked by the auto-relock function before the user gets on.

  According to the present invention, it is possible to provide a highly convenient vehicle smart entry system that has at least one of a keyless entry function or an auto-relock function.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram schematically showing a configuration of a vehicle smart entry system (hereinafter simply referred to as a smart entry system) 100A according to the present embodiment, along with other related configurations. The smart entry system 100A includes a control device 10A, a portable device 20A, a lock trigger SW, and an unlock trigger SW. The portable device 20A includes an RF (Radio Frequency) transmission circuit 21 and an LF (Low Frequency) reception circuit 22. The portable device 20A is provided with a lock button 23 and an unlock button 24. In this embodiment, a remote operation means is realized by the lock button 23 and the unlock button 24. The RF transmission circuit 21 generates an ID code signal and transmits the generated ID code signal, and includes an antenna (not shown). The LF reception circuit 22 is configured to receive a reply request signal, and is configured to have an antenna (not shown) as with the RF transmission circuit 21. The LF reception circuit 22 detects the received radio wave based on the frequency, and outputs a trigger signal to the RF transmission circuit 21 when a reply request signal is received from the control device 10A (more specifically, the LF transmission circuit 3).

  The RF transmission circuit 21 to which the trigger signal is input generates an ID code signal. The RF transmission circuit 21 also generates an ID code signal when the lock button 23 and the unlock button 24 are operated. This ID code signal is generated by AM-modulating a carrier wave generated by oscillating at a predetermined frequency with an ID code. This ID code has different bits depending on whether a response request signal is further received for the unique ID code unique to the portable device 20A, when the lock button 23 is pressed, and when the unlock button 24 is pressed. It is generated by adding. Therefore, by demodulating the ID code signal and extracting the ID code from the ID code signal, whether or not the portable device 20A is a regular portable device and whether or not the portable device 20A exists in the operating area outside the vehicle compartment It can be determined whether or not the lock button 23 or the unlock button 24 has been operated. The propagation distance of this ID code signal is about 5 to 20 m from the portable device 20A.

  The control device 10A includes a microcomputer 1A, an RF receiver circuit 2, an LF transmitter circuit 3, a door lock / unlock output circuit 4 for the lock motor 30, and an output circuit 5 for the flasher 31 and the buzzer 32. Has been. The RF receiving circuit 2 is configured to receive the ID code signal by the antenna 2a and to demodulate the received ID code signal and extract the ID code from the ID code signal. The RF receiving circuit 2 that has extracted the ID code outputs the extracted ID code to the microcomputer 1A. The LF transmission circuit 3 has a configuration for generating a response request signal having a predetermined frequency and transmitting the generated response request signal via the vehicle interior antenna 33. For this reason, the driver's seat exterior antenna 33a, the passenger seat exterior antenna 33b, and the back door exterior antenna 33c are connected to the LF transmitter circuit 3 as the exterior antenna 33, respectively. A reply request signal is intermittently transmitted from each of the antennas 33 outside the vehicle compartment. The propagation distance of the reply request signal is about 1 m from each of the antennas 33 outside the vehicle compartment, and the reply request signal forms an operating area of the portable device 20A as shown in FIG. 2 outside the vehicle compartment near the vehicle. Further, a front vehicle interior antenna 34 a and a rear vehicle interior antenna 34 b are connected to the LF transmission circuit 3 as vehicle interior antennas 34, respectively, and an operation area is also formed in the vehicle interior by these vehicle interior antennas 34.

  A lock motor 30 is connected to the door lock / unlock output circuit 4. The door lock / unlock output circuit 4 outputs to the lock motor 30 in response to a lock command or unlock command from the microcomputer 1A, and drives the lock motor 30 to lock or unlock the door. A flasher 31 and a buzzer 32 are connected to the output circuit 5. The output circuit 5 outputs in response to a command from the microcomputer 1A, and blinks the flasher 31 or activates the buzzer 32.

  The microcomputer 1A includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown). An IG (ignition) SW is connected to the microcomputer 1A, and the microcomputer 1A is supplied with power when the IGSW is turned on. In addition to the IG key detection SW, the microcomputer 1A includes a driver seat (hereinafter simply referred to as D seat) door SW and a passenger seat (hereinafter simply referred to as P seat) door SW as door SW for detecting opening and closing of the door. The rear seat (hereinafter simply referred to as the Rr seat) door SW and the back door SW have the D seat lock position SW, P and Rr seat lock position SW as the lock position SW for detecting the lock and unlock of the door and the back. Door lock positions SW are connected to each other.

  In this embodiment, a lock trigger SW and an unlock trigger SW are connected to the microcomputer 1A as trigger SWs for inputting a manual trigger signal for locking or unlocking the door to the microcomputer 1A. In this embodiment, both the lock trigger SW and the unlock trigger SW are provided on the door knob, and manual operation means is realized by these lock trigger SW and unlock trigger SW.

  The ROM of the microcomputer 1A realizes a program for the first smart entry function for realizing the first smart entry function, a program for the keyless entry function for realizing the keyless entry function, and an auto-relock function. And a program for the second smart entry function for realizing the second smart entry function, respectively. These programs may be combined together. When the microcomputer 1A performs door lock control or unlock control based on these programs, a first smart entry function, a keyless entry function, an auto-relock function, and a second smart entry function are realized.

  Further, when the portable device 20A exists in the operating area outside the passenger compartment in the ROM, the door lock control or unlock control based on the keyless entry function depends on whether the door is locked or unlocked. A program for controlling the keyless entry function that permits or prohibits is stored. Furthermore, this keyless entry function control program is created to prohibit door lock control based on the keyless entry function when the door is unlocked, and when the door is locked, the keyless entry function control program is created. Created to allow door unlock control based on function. In this embodiment, the keyless entry function control means is realized by the microcomputer 1A storing the keyless entry function control program.

  Next, the first smart entry function will be described in detail. For example, when the portable device 20A enters the working area from outside the operating area outside the vehicle compartment, the portable device 20A receives a reply request signal by the LF receiving circuit 22. Receiving the reply request signal, the portable device 20A generates an ID code signal by the RF transmission circuit 21 and transmits the generated ID code signal. The control device 10 </ b> A receives this ID code signal by the RF receiving circuit 2. The RF receiving circuit 2 that has received the ID code signal extracts the ID code from this signal and outputs the extracted ID code to the microcomputer 1A. The microcomputer 1A to which the ID code is inputted checks the validity of the portable device 20A by comparing this ID code with a pre-stored unique ID code, and if it is valid, determines the bit added to the ID code. Then, it is confirmed that the portable device 20A has entered the operating area outside the passenger compartment, and door unlock control is performed. Specifically, at this time, the microcomputer 1A outputs a door unlock command to the door lock / unlock output circuit 4. Upon receiving the command, the door lock / unlock output circuit 4 outputs to the lock motor 30 and drives the lock motor 30 to unlock the door. Thereby, the door is automatically unlocked only by the user carrying the portable device 20A approaching the vehicle.

  On the other hand, if the mobile device 20A does not receive the reply request signal when it goes out of the operation area outside the vehicle compartment, the mobile device 20A does not transmit the ID code signal. As a result, in the control device 10A that no longer receives the ID code signal, the microcomputer 1A performs door lock control. Specifically, at this time, the microcomputer 1A outputs a door lock command to the door lock / unlock output circuit 4. Upon receiving the command, the door lock / unlock output circuit 4 outputs to the lock motor 30 and drives the lock motor 30 to lock the door. Accordingly, the door is automatically locked only when the user who has the portable device 20A leaves the vehicle. In the present embodiment, the first smart entry function is realized in this way.

  Next, the keyless entry function will be described in detail. For example, when the user presses the lock button 23 outside the operating area outside the passenger compartment, the portable device 20A generates an ID code signal at the RF transmission circuit 21 and transmits the generated ID code signal. The control device 10A receives this ID code signal by the RF receiving circuit 2 via the antenna 2a. The RF receiving circuit 2 that has received the ID code signal extracts the ID code from this signal and outputs the extracted ID code to the microcomputer 1A. The microcomputer 1A to which the ID code is inputted checks the validity of the portable device 20A by comparing this ID code with a pre-stored unique ID code, and if it is valid, determines the bit added to the ID code. After confirming that the lock button 23 of the portable device 20A is operated, the door lock control is performed. Accordingly, the door can be locked by operating the lock button 23 of the portable device 20A.

  On the other hand, for example, when the user presses the unlock button 24 outside the operating area outside the passenger compartment, the portable device 20A generates an ID code signal at the RF transmission circuit 21 and transmits the generated ID code signal. The control device 10A receives this ID code signal by the RF receiving circuit 2 via the antenna 2a. The RF receiving circuit 2 that has received the ID code signal extracts the ID code from this signal and outputs the extracted ID code to the microcomputer 1A. The microcomputer 1A to which the ID code is inputted checks the validity by comparing this ID code with a pre-stored unique ID code, and if it is valid, the bit added to the ID code is discriminated to identify the portable device 20A. After confirming that the unlock button 24 has been operated, door unlock control is performed. Accordingly, the door can be unlocked by operating the unlock button 23 of the portable device 20A. In this embodiment, the keyless entry function is realized in this way.

  Next, the auto-relock function will be described in detail. In this embodiment, an auto-relock timer is functionally formed in the microcomputer 1A based on a program for the auto-relock function. After performing the door unlock control, the microcomputer 1A starts an auto-relock timer and counts the time T. Further, the microcomputer 1A monitors whether or not the counting time T exceeds a predetermined time, and performs a door lock control when the time T exceeds the predetermined time. As a result, the door can be automatically locked when a predetermined time has elapsed after the door is unlocked. If the door is opened before the predetermined time has elapsed, the microcomputer 1A clears the time T of the auto-relock timer. In this embodiment, the auto-relock function is realized in this way.

  Next, the second smart entry function will be described in detail. When the user operates the unlock trigger SW, a manual trigger signal for unlocking the door is input to the microcomputer 1A. At this time, the microcomputer 1A determines whether or not the portable device 20A exists in the operation area outside the vehicle compartment. If the determination is affirmative, the microcomputer 1A performs unlock control on the door based on the manual trigger signal. When the user operates the lock trigger SW, a manual trigger signal for locking the door is input to the microcomputer 1A. At this time, the microcomputer 1A determines whether or not the portable device 20A exists in the operating area outside the vehicle compartment. If the determination is affirmative, the microcomputer 1A performs door lock control based on the manual trigger signal. In the present embodiment, the second smart entry function is realized in this way.

  Next, the operation of the smart entry system 100A according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. The microcomputer 1A determines whether an ID code signal has been received (step S11). If the determination is negative, the microcomputer 1A continues to make the determination until an affirmative determination is made in step S11. On the other hand, if the determination is affirmative, the microcomputer 1A determines the bit added to the ID code and determines whether or not the unlock button 24 has been operated (hereinafter simply referred to as remote unlock or not) (step). S12). If the determination is affirmative, the microcomputer 1A determines whether or not the portable device 20A exists in the operating area outside the passenger compartment (step S13). At this time, the microcomputer 1A specifically determines whether or not a new ID code signal has been received, and when received, the bit added to the ID code is determined so that the portable device 20A is located outside the passenger compartment. It is determined whether or not it exists in the operating area.

  If an affirmative determination is made in step S13, the microcomputer 1A checks the output signal of the lock position SW and determines whether or not the door is locked (step S14). If a negative determination is made in step S14, the microcomputer 1A prohibits the door lock control based on the keyless entry function (step S15). Accordingly, the door can be prevented from being locked even if the lock button 23 of the portable device 20A is operated in the operation area outside the passenger compartment. That is, it is possible to prevent the door from being locked due to an erroneous operation of the portable device 20A. On the other hand, if the determination in step S14 is affirmative, the microcomputer 1A permits door unlock control based on the keyless entry function (step S16). As a result, the door can be unlocked as a result of operating the unlock button 24 of the portable device 20A in the operating area outside the passenger compartment.

  Subsequent to step S16 or if a negative determination is made in step S13, the microcomputer 1A performs door unlock control (step S17). That is, in these cases, the door can be unlocked by the keyless entry function. Subsequently, the microcomputer 1A starts an auto-relock timer and counts the time T (step S18). Further, the microcomputer 1A determines whether or not the door has been opened (step S19). If the determination is negative, the microcomputer 1A determines whether or not the time T of the auto-relock timer has passed 30 seconds (predetermined time) (step S20). If a negative determination is made, the process returns to step S19. If a negative determination is made in step S19, steps S19 and S20 are repeated until an affirmative determination is made in step 20.

  At this time, if the time T of the auto-relock timer exceeds 30 seconds, an affirmative determination is made in step S20, and the microcomputer 1A performs door lock control (step S21). That is, in this step, the door is automatically locked by the auto-relock function. Subsequently, the microcomputer 1A clears the time T of the auto-relock timer (step S22). If the determination in step S19 is affirmative, the microcomputer 1A clears the time T of the auto-relock timer (step S22). After step S22, the process returns and returns to step S11. Even when the user is in the operating area outside the passenger compartment when the door is automatically locked by the auto-relock function in this way, in this embodiment, the door unlock control is performed in step S16 as described above. Is permitted, the user can unlock the door by operating the unlock button 24.

  On the other hand, if a negative determination is made in step S12, the microcomputer 1A determines the bit added to the ID code and determines whether or not the lock button 23 has been operated (hereinafter simply referred to as remote lock). (Step S31). If the determination is negative, no special processing is required in the present embodiment, and the process returns and returns to step S11. If an affirmative determination is made in step S31, the microcomputer 1A determines whether or not the portable device 20A is present in the operating area outside the passenger compartment as in step S13 (step S32). If the determination is negative, the microcomputer 1A performs door lock control (step S36). That is, in this case, the door can be locked by the keyless entry function.

  On the other hand, if an affirmative determination is made in step S32, the microcomputer 1A determines whether or not the door is locked (step S33). If a negative determination is made in step S33, the microcomputer 1A prohibits door lock control based on the keyless entry function (step S34). As a result, the door can be prevented from being locked as a result of operating the lock button 23 of the portable device 20A in the operation area outside the vehicle compartment. That is, it is possible to prevent the door from being locked due to an erroneous operation of the portable device 20A. On the other hand, if the determination in step S33 is affirmative, the microcomputer 1A permits door unlock control based on the keyless entry function (step S35). Thus, the door can be unlocked when the unlock button 24 of the portable device 20A is operated in the operating area outside the passenger compartment. After step S34, S35 or S36, the process returns and returns to step S11.

  In this embodiment, since the user can lock the door using the second smart entry function, this prevents any inconvenience even if the door lock control based on the keyless entry function is prohibited. Can do. However, the present invention is not limited to this, and the smart entry system 100A may include only the first smart entry function or only the second smart entry function among the first and second smart entry functions. Good. When the second smart entry function is not provided, the smart entry system 100A does not necessarily include the lock trigger SW and the unlock trigger SW. Further, in this embodiment, the first smart entry function locks and unlocks the door according to the approach and separation of the portable device 20A to the vehicle, but the first smart entry function is not limited to this. May be the one that locks the door in accordance with the separation of the portable device 20A from the vehicle or only unlocks the door in accordance with the approach of the portable device 20A to the vehicle. May be modified as appropriate.

  Although not shown in the present embodiment, door unlock control based on the keyless entry function is also prohibited at step S15. As a result, the operation of trying to unlock the door that is already unlocked can be prohibited, so that useless operation can be prohibited. Similarly, in this embodiment, the door lock control is also prohibited at the same time in step S35, thereby prohibiting the operation of locking the door already locked.

  In the case of determining whether it is remote lock or remote unlock before prohibiting door lock control or permitting door unlock control as in this embodiment, if it is remote unlock, May not prohibit the door lock control shown in step S15, and may not allow the door unlock control shown in step S35 in the case of remote lock. In other words, when the portable device 20A exists in the operating area outside the passenger compartment and the door is unlocked, the door lock control based on the keyless entry function is prohibited only when the door is further locked. Similarly, when the portable device 20A exists in the operating area outside the passenger compartment and the door is locked, the door unlock control based on the keyless entry function is performed only when the door is in the remote unlock state. You may make it permit. Thus, a highly convenient vehicle smart entry system 100A having at least one of a keyless entry function or an auto-relock function can be realized.

  The smart entry system 100B according to the present embodiment is the same as the smart entry system 100A according to the first embodiment, except that the smart entry system 100B includes a control device 10B instead of the control device 10A. The control device 10B is the same as the control device 10A except that the control device 10B includes the microcomputer 1B instead of the microcomputer 1A. The microcomputer 1B is the same as the microcomputer 1A except that the first smart entry function priority program is further stored in the ROM. This first smart entry function priority program is used when the portable device 20A comes out of the operating area outside the passenger compartment before the predetermined time elapses after the door is unlocked. The first smart entry function is prioritized over the auto-relock function. In this embodiment, the first smart entry function priority means is realized by the microcomputer 1B storing the first smart entry function priority program.

  Next, the operation of the smart entry system 100B according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. The flowchart shown in FIG. 4 is the same as the flowchart shown in FIG. 3 except that step S40 is added between step S19 and step S20 of the flowchart shown in FIG. Therefore, in this embodiment, step S40 will be described in detail. If a negative determination is made in step S19, the microcomputer 1B determines whether or not the portable device 20A has moved out of the operating area from the operating area outside the vehicle compartment (step S40). If a negative determination is made, the process proceeds to step S20. On the other hand, if a negative determination is made in step S40, the microcomputer 1B performs door lock control (step S21).

  In this way, step S20 is skipped, and the door lock control is performed in step S21 following step S40, so that the door is locked by the first smart entry function. In other words, the first smart entry function can be prioritized over the auto-relock function. As a result, in this embodiment, when the user leaves the vehicle, the door is automatically locked while in the vicinity of the vehicle, so that the user can easily recognize that the door is automatically locked. The smart entry system 100B may include only the first smart entry function among the first and second smart entry functions. Further, when the second smart entry function is not provided, the smart entry system 100B does not necessarily include the lock trigger SW and the unlock trigger SW. The first smart entry function only needs to lock the door in accordance with at least the separation of the portable device 20A from the vehicle. As described above, a highly convenient vehicle smart entry system 100B having at least one of the keyless entry function or the auto-relock function can be realized.

  The smart entry system 100C according to the present embodiment is the same as the smart entry system 100A according to the first embodiment except that the smart entry system 100C includes a control device 10C instead of the control device 10A. The control device 10C is the same as the control device 10A except that the control device 10C includes the microcomputer 1C instead of the microcomputer 1A. The microcomputer 1C is the same as the microcomputer 1A except that the program for controlling the keyless entry function is not stored in the ROM and that the program for prohibiting the auto-relock function is further stored in the ROM. However, the microcomputer 1C may further store a program for controlling the keyless entry function in the ROM.

  The program for prohibiting the auto-relock function is that when the portable device 20A is outside the operating area outside the vehicle compartment, the door 20A is unlocked based on the keyless entry function and before the predetermined time elapses. When the vehicle enters the operating area outside the passenger compartment, the door lock control based on the auto-relock function is prohibited. In the present embodiment, the auto-relock function prohibiting means is realized by the microcomputer 1C storing the auto-relock function prohibiting program.

  Next, the operation of the smart entry system 100C according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 5, the step S41 is added between steps S17 and S18, the step S42 is added between steps S18 and S19, and an affirmative determination is made in step S42. Subsequently, step S43 is the same as the flowchart shown in FIG. 3 except that step S43 is added and steps S13 to S16 and steps S32 to S35 are omitted. For this reason, in this embodiment, steps S41 to S43 will be described in detail. If a program for controlling the keyless entry function is further stored in the ROM, steps S13 to S16 and steps S32 to S35 are added.

  After performing door unlock control based on the keyless entry function in step S17, the microcomputer 1C determines whether or not the auto-relock function is prohibited (step S41). If a negative determination is made, the microcomputer 1C starts the time T of the auto-relock timer in step S18, and then determines whether or not the portable device 20A has entered the operating area from outside the operating area outside the vehicle compartment (step S18). S42). If a negative determination is made, the process proceeds to step S19. On the other hand, if a positive determination is made in step S42, the microcomputer 1C prohibits the auto-relock function (step S43). Subsequently, the microcomputer 1C clears the time T of the auto-relock timer (step S22). Thereby, it can be prohibited that the door is locked by the auto-relock function. After step S22, the process returns and returns to step S11. At this time, if the process proceeds to step S41 after the next routine, an affirmative determination is made in step S41, so that door lock control based on the auto-relock function is prohibited. Accordingly, since the door is locked before getting on the vehicle and the user has to operate the unlock button 24 of the portable device 20A again, the convenience can be improved.

  In addition, the prohibition of the auto-relock function can be canceled simultaneously in step S22, for example, and when the portable device 20A goes out of the operating area outside the passenger compartment, or when the second smart entry function or keyless entry function is used, the door Even when trying to lock (or unlock), the microcomputer 1C can release it. Therefore, in this embodiment, even when the portable device 20A exists in the operating area outside the passenger compartment, the auto-relock function once prohibited when the door is unlocked by the second smart entry function or the keyless entry function again, for example. It can function effectively. Further, the first smart entry function may be a function that only locks the door according to the separation of the portable device 20A from the vehicle or unlocks the door according to the approach of the portable device 20A to the vehicle. In addition, the smart entry system 100C may include only the first smart entry function among the first and second smart entry functions, or may include only the second smart entry function. When the second smart entry function is not provided, the smart entry system 100C does not necessarily have the lock trigger SW and the unlock trigger SW. As described above, a highly convenient vehicle smart entry system 100C having at least one of a keyless entry function or an auto-relock function can be realized.

  The smart entry system 100D according to the present embodiment is the same as the smart entry system 100A according to the first embodiment, except that the smart entry system 100D includes the control device 10D instead of the control device 10A. The control device 10D is the same as the control device 10A except that the control device 10D includes the microcomputer 1D instead of the microcomputer 1A. The microcomputer 1D is the same as the microcomputer 1A except that the program for controlling the keyless entry function is not stored in the ROM and the second smart entry function priority program is further stored in the ROM. ing. However, the microcomputer 1D may further store a program for controlling the keyless entry function in the ROM.

  The second smart entry function-priority program is such that when the portable device 20A is outside the operating area outside the passenger compartment, the door unlock control based on the keyless entry function is performed and a predetermined time elapses. When the portable device 20A enters the operation area outside the passenger compartment, the door unlock control based on the first smart entry function is prioritized over the door lock control based on the auto-relock function. . In this embodiment, the second smart entry function priority unit is realized by the microcomputer 1D storing the second smart entry function priority program.

  Next, the operation of the smart entry system 100D according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 6, steps S41 and S43 in the flowchart shown in FIG. 5 are omitted, step S44 is added following the affirmative determination in step S42, and steps S20 and S21. The flow chart is the same as that shown in FIG. 5 except that step S45 is added in between. Therefore, in this embodiment, steps S44 and S45 will be described in detail. After starting the time T of the auto-relock timer in step S18, the microcomputer 1D determines whether or not the portable device 20A has entered the operating area from outside the operating area outside the vehicle compartment (step S42). If a negative determination is made, the process proceeds to step S19. On the other hand, if an affirmative determination is made in step S42, the microcomputer 1D prioritizes the first smart entry function (step S44). Specifically, in this step, a flag is set so that the first smart entry function is prioritized over the auto-relock function. After step S44, the process proceeds to step S19.

  Thereafter, if an affirmative determination is made in step S20, the microcomputer 1A checks whether or not the first smart entry function is prioritized (step S45). If a negative determination is made, the process proceeds to step S21. On the other hand, if it is affirmation determination, it will progress to step S22. Since the flag is set in step S44 as described above, the process proceeds to step S22 following step S45, so that the time T of the auto-relock timer can be cleared without performing lock control based on the auto-relock function. The first smart entry function can be prioritized over the function. Accordingly, since the door is locked before getting on the vehicle and the user has to operate the unlock button 24 of the portable device 20A again, the convenience can be improved.

  Note that the priority of the first smart entry function can be canceled simultaneously in step S22, for example, and when the portable device 20A goes out of the operation area outside the passenger compartment, the second smart entry function or the keyless entry function. If the door is to be locked (or unlocked), the microcomputer 1D can cancel the door. For this reason, in the case of this embodiment, for example, when the door is further locked by the second smart entry function or the like and then unlocked by the unlock button 24 of the portable device 20A, the auto-relock function is made effective. Can function. In addition, the smart entry system 100D may include only the first smart entry function among the first and second smart entry functions. When the second smart entry function is not provided, the smart entry system 100D does not necessarily include the lock trigger SW and the unlock trigger SW. The first smart entry function only needs to unlock the door according to at least the approach of the portable device 20A to the vehicle. As described above, a highly convenient vehicle smart entry system 100D having at least one of a keyless entry function or an auto-relock function can be realized.

  The smart entry system 100E according to the present embodiment is the same as the smart entry system 100A according to the first embodiment except that the smart entry system 100E is configured to include the control device 10E instead of the control device 10A. The control device 10E is the same as the control device 10A except that the control device 10E includes the microcomputer 1E instead of the microcomputer 1A. The microcomputer 1E is the same as the microcomputer 1A except that the program for controlling the keyless entry function is not stored in the ROM and that the count restart program is further stored in the ROM. However, the microcomputer 1E may further store a program for controlling the keyless entry function in the ROM.

  The program for count restart is the same as the portable device 20A before the predetermined time elapses after the door unlock control based on the keyless entry function is performed when the portable device 20A is outside the operation area outside the vehicle compartment. When the vehicle enters the operating area outside the passenger compartment, it is created to restart the count for a predetermined time. In this embodiment, the count restart means is realized by the microcomputer 1E storing the count restart program.

  Next, the operation of the smart entry system 100E according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. The flowchart shown in FIG. 7 is the same as the flowchart shown in FIG. 6 except that steps S44 and S45 are omitted, and if the determination is affirmative in step S42, the process proceeds to step S18. It has become. For this reason, in this embodiment, step S42 will be described in detail. If an affirmative determination is made in step S42, the microcomputer 1E starts an auto-relock timer T (step S18). Thus, the count can be restarted by starting the auto-relock timer T in step S18 following step S42. Therefore, in the case of the present embodiment, the auto-relock function can be effectively functioned while improving convenience as compared with the case of the fourth embodiment.

  The first smart entry function may be a function that only locks the door according to the separation of the portable device 20A from the vehicle or unlocks the door according to the approach of the portable device 20A to the vehicle. In addition, the smart entry system 100E may include only the first smart entry function among the first and second smart entry functions, or may include only the second smart entry function. When the second smart entry function is not provided, the smart entry system 100E does not necessarily include the lock trigger SW and the unlock trigger SW. As described above, a highly convenient vehicle smart entry system 100E having at least one of a keyless entry function or an auto-relock function can be realized.

  The smart entry system 100F according to the present embodiment is the same as the smart entry system 100A according to the first embodiment, except that the smart entry system 100F includes a control device 10F instead of the control device 10A. The control device 10F is the same as the control device 10A except that the control device 10F includes the microcomputer 1F instead of the microcomputer 1A. The microcomputer 1F is the same as the microcomputer 1A except that the program for controlling the keyless entry function is not stored in the ROM and the program for extending the predetermined time is further stored in the ROM. However, the microcomputer 1F may further store a program for controlling the keyless entry function in the ROM.

  The program for extending the predetermined time is such that when the portable device 20A is outside the operating area outside the passenger compartment, the door 20A is unlocked based on the keyless entry function and before the predetermined time elapses, the portable device 20A When the vehicle enters the operating area outside the passenger compartment, it is created to extend the predetermined time. In this embodiment, the predetermined time extension means is realized by the microcomputer 1F storing the program for extending the predetermined time.

  Next, the operation of the smart entry system 100F according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 8, Steps S44 and S45 are omitted, Steps S46 and S47 are added following the affirmative determination of Step S41, and Step S48 is followed by a negative determination of Step S19. 6 is the same as the flowchart shown in FIG. 6 except that step S49 is added subsequent to step S22. Therefore, in the present embodiment, these steps S46 to S49 will be described in detail. If an affirmative determination is made in step S42, the microcomputer 1F clears the time T of the auto-relock timer (step S46). Subsequently, the microcomputer 1F starts an auto-relock timer and counts time T2 (step S47). That is, in this embodiment, the predetermined time is extended by newly counting the time T2.

  Subsequently, the process proceeds to step S19, and if a negative determination is made in step S19, the microcomputer 1F determines whether or not the time T2 of the auto-relock timer has passed 10 seconds (step S48). If a negative determination is made in step S48, the process proceeds to step S20, and if a negative determination is made in step 20, the process returns to step 42. At this time, if a negative determination is made in step S42 and then a negative determination is made in step S19, these steps are repeated in the order of steps S48, S20, S42, and S19 until an affirmative determination is made in step S46.

  On the other hand, if 10 seconds elapses during this period and the determination in step S48 is affirmative, the microcomputer 1F performs door lock control (step S21). Subsequently, the microcomputer 1F clears the time T of the auto-relock timer (step S22) and clears the time T2 of the auto-relock timer (step S49). Thus, by performing the door lock control in step S21 following the affirmative determination in step S48, the predetermined time set for locking the door by the auto-relock function can be extended. As a modification of the present embodiment, for example, steps S46 to S49 may be omitted, and a step of extending the predetermined time itself set for the time T may be added following the affirmative determination of step S42.

  In addition, the first smart entry function may be a function that only locks the door according to the separation of the portable device 20A from the vehicle or unlocks the door according to the approach of the portable device 20A to the vehicle. In addition, the smart entry system 100E may include only the first smart entry function among the first and second smart entry functions, or may include only the second smart entry function. When the second smart entry function is not provided, the smart entry system 100F does not necessarily include the lock trigger SW and the unlock trigger SW. As described above, a highly convenient vehicle smart entry system 100F having at least one of a keyless entry function or an auto-relock function can be realized.

  The smart entry system 100G according to the present embodiment is configured to include a control device 10G instead of the control device 10A and a configuration configured to include a portable device 20G instead of the portable device 20A. This is the same as the smart entry system 100A according to the first embodiment. Further, the control device 10G is the same as the control device 10A except that the control device 10G includes the microcomputer 1G instead of the microcomputer 1A. The microcomputer 1G is the same as the microcomputer 1A except that the anti-theft function program and the trunk release function program are further stored in the ROM. On the other hand, the portable device 20G is the same as the portable device 20A except that it further includes a trunk release button (not shown). In this embodiment, a remote trunk release operating means is realized by this trunk release button.

  The program for the anti-theft function is created to issue an alarm to prevent theft. In this embodiment, the vibration sensor (not shown) provided on the door specifically detects abnormal vibration that seems to be theft. When this occurs, the alarm is generated by operating the buzzer 32. In the smart entry system 100G, the anti-theft function is realized by the microcomputer 1G executing the program for the anti-theft function. In this embodiment, the anti-theft function program further includes a warning stop program. This alarm stop program is created so that the lock button 23 and the unlock button 24 function as buttons for stopping the alarm when the alarm is issued by the anti-theft function. In this embodiment, the alarm stop means is realized by the microcomputer 1G storing the alarm stop program.

  On the other hand, when a trunk release button provided on the portable device 20G is operated, an ID code signal is transmitted from the portable device 20G. This ID code signal includes an ID code to which a bit according to the operation of the trunk release button is added. For this reason, in the control device 10G that has received this ID code signal, the microcomputer 1G discriminates the bit added to this ID code, performs the trunk release control when it judges that the trunk release button has been operated, Release. The program for the trunk release function is created so as to control the release of the trunk in accordance with the operation of the trunk release button as described above. In this embodiment, the trunk release is performed by the microcomputer 1G storing the program for the trunk release function. Control means are realized.

  Next, the operation of the smart entry system 100G according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 9, step S50 is added between step S12 and step S13, and step S51 is added following the affirmative determination of step 50, and between step S31 and step S32. Step S52 is added, step S53 is added following the affirmative determination of step S52, step S60 is added following the negative determination of step S31, and the affirmative determination of step S60 is followed. The flowchart is the same as that shown in FIG. 3 except that step S51 is added. Therefore, in this embodiment, in particular, these steps S50 to S53 and steps S60 and S61 will be described in detail.

  Subsequent to the affirmative determination in step S12, the microcomputer 1G determines whether an alarm is issued by the anti-theft function (hereinafter simply referred to as being in alarm) (step S50). If a negative determination is made, the process proceeds to step S13. On the other hand, if the determination is affirmative, the microcomputer 1G stops the alarm (step S51). By stopping the alarm in this way, the unlock button 24 can be made to function so as to stop the alarm. Similarly, the microcomputer 1G determines whether an alarm is being issued following the positive determination in step S31 (step S52). If a negative determination is made, the process proceeds to step S32. On the other hand, if the determination is affirmative, the microcomputer 1G stops the alarm (step S53). By stopping the alarm in this way, the lock button 23 can be caused to function so as to stop the alarm.

  On the other hand, if a negative determination is made in step S31, the microcomputer 1G determines the bit added to the ID code and determines whether or not the trunk release button has been operated (hereinafter simply referred to as remote trunk release or not). Is determined (step S60). If it is negative determination, it returns and returns to step S11. On the other hand, if the determination is affirmative, the microcomputer 1G performs trunk release control. As a result, the user can easily open the trunk even when the user is outside the passenger compartment.

  The alarm stop program is, for example, an appropriate operation means (for example, any one of the lock button 23, the unlock button 24, or the trunk release button) provided in the portable device 20G, and a button for stopping the alarm. For example, all the operating means (for example, the lock button 23, the unlock button 24, and the trunk release button) provided in the portable device 20A function as buttons for stopping the alarm. May be created. As described above, a highly convenient vehicle smart entry system 100G having at least one of a keyless entry function or an auto-relock function can be realized.

  The embodiment described above is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

It is a figure showing typically the composition of smart entry system 100A with other related composition. It is a figure which shows typically the operation area outside a vehicle compartment. It is a figure which shows operation | movement of the smart entry system 100A with a flowchart. It is a figure which shows operation | movement of the smart entry system 100B with a flowchart. It is a figure which shows operation | movement of the smart entry system 100C with a flowchart. It is a figure which shows the operation | movement of smart entry system 100D with a flowchart. It is a figure which shows operation | movement of the smart entry system 100E with a flowchart. It is a figure which shows the operation | movement of the smart entry system 100F with a flowchart. It is a figure which shows operation | movement of the smart entry system 100G with a flowchart.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microcomputer 2 RF reception circuit 3 LF transmission circuit 4 Door lock and unlock output circuit 5 Output circuit 10 Control device 20 Portable device 21 RF transmission circuit 22 LF reception circuit 23 Lock button 24 Unlock button 30 Lock motor 100 Smart entry system

Claims (7)

A portable device, a remote operation means, and a control device are configured, and the door is locked according to the separation of the portable device from the vehicle and / or the door is unlocked according to the approach of the portable device to the vehicle. A smart entry system for a vehicle having a first smart entry function and a keyless entry function for locking or unlocking a door according to an operation of the remote operation means,
When the portable device is in an operating area outside the passenger compartment, the control device controls or unlocks the door based on the keyless entry function depending on whether the door is locked or unlocked. A smart entry system for a vehicle, comprising keyless entry function control means for permitting or prohibiting lock control. 2. The smart entry system for a vehicle according to claim 1, wherein the keyless entry function control means prohibits the door lock control based on at least the keyless entry function when the door is unlocked. 3. The smart entry system for a vehicle according to claim 1, wherein the keyless entry function control means permits the door unlock control based on at least the keyless entry function when the door is in a locked state. 4. The smart entry system for a vehicle according to claim 3, further comprising an auto-relock function for locking the door when a predetermined time elapses after the door is unlocked. Further, an alarm having an anti-theft function for issuing an alarm to prevent theft, and an alarm for causing the remote operation means to function as an operation means for stopping the alarm when the alarm is issued by the anti-theft function. The smart entry system for a vehicle according to any one of claims 1 to 4 , wherein the control device includes a stopping unit. Further provided with a remote trunk release operating means, the remote trunk release operation 5 any one trunk release control means for releasing control of the trunk from claim 1, characterized in that it comprises said control unit in response to the operating means Smart entry system for listed vehicles. Further, the vehicle is configured to have manual operation means provided in the vehicle, and locks or unlocks the door according to the operation of the manual operation means when the portable device is in the operation area. 2 of the smart entry function, instead of the first smart entry function, or vehicle smart entry system according to claim 1, characterized in that it comprises together with the first smart entry function.

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