JP2006273325A - In-vehicle appliance remote control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an in-vehicle appliance remote control device which has improved security property without impairing convenience so that a movement of a vehicle can be prevented even if a driver leaves the vehicle with an engine left running. <P>SOLUTION: An in-vehicle appliance has a position judging means for judging a location of a mobile device, an engine action judging means for judging whether the engine is running or not, and a shift lock release permission means which permits a transmission gearshift lock release of the vehicle and does not permit the transmission gearshift lock release by the shift lock release permission means when the engine is running with the mobile device outside the vehicle upon the operation of a communication starting switch, whereby the movement of the vehicle can be prevented even if the driver leaves the vehicle with the engine left running. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle device remote control device that performs code verification by communication with a portable device and controls an in-vehicle device based on a verification result.

  Conventionally, in addition to a remote operation function of operating / operating a portable device operation unit to lock / unlock a vehicle door, a return code for a transmission request signal from the vehicle side without operating the operation unit. There is a smart entry system that locks / unlocks a door by returning a signal and checking a code. For example, in Patent Document 1, when a call signal is received by a first receiving unit, a portable radio apparatus including a first transmitting unit that transmits a response signal and a second transmitting unit at predetermined time intervals. When the transmitted response signal is received by the second receiving means, a signal for unlocking the vehicle door is output, and if the response signal is not received, a predetermined time is received. A system is described which includes a vehicle radio apparatus having a control means for outputting a signal for locking the door of the vehicle after the passage.

Also, conventionally, a return code signal is returned in response to a transmission request signal from the vehicle side, and the code is collated to unlock the steering lock mechanism and release the engine start prohibition device, and There is a smart start system that enables engine start operations that are not used. For example, in Patent Document 2, when a call signal is transmitted to a portable wireless device, a code code signal from the portable wireless device is received and matched with the internal code, the unlocking operation of the steering lock mechanism, the ignition switch A system is described that consists of means for allowing each of the switching operation and the switching operation of the accessory switch.
JP-A-5-106376 JP-A 63-1765

The name of the system combining the above two systems is hereinafter referred to as a smart entry / start system.
In the smart entry / start system, compatibility between convenience and security is an issue. If the owner of the portable device needs to leave the vehicle with the engine running (for example, if the air conditioner needs to be activated, or if the engine is in condition), the vehicle will move inadvertently during that time There is concern about the possibility of being stolen.

  The present invention has been made to solve the above-described problems, and improves security without sacrificing convenience so that movement of the vehicle can be prevented even when the engine is left outside the vehicle with the engine running. An object is to obtain an in-vehicle device remote control device.

In the in-vehicle device remote control device according to the present invention, the communication start switch is operated to have a vehicle-mounted device that starts communication and a portable device that is a communication destination of the vehicle-mounted device. In the in-vehicle device remote control device configured to control the operation of the in-vehicle device by transmitting a question signal to the portable device and receiving a response signal in response to the question signal from the portable device, An in-vehicle device having position determining means for determining the location of the portable device, engine operation determining means for determining whether or not the engine is operating, and shift lock release permission means for permitting release of the transmission gear shift lock of the vehicle is provided. When the communication start switch is operated, the in-vehicle device uses the shift lock release permission means when the portable device is outside the vehicle and the engine is operating. The transmission gear shift lock release is intended to disallow.
Further, in an in-vehicle device remote control device having a portable device and an in-vehicle device that controls the operation of the in-vehicle device by transmitting a question signal to the portable device and receiving a response signal in response to the question signal from the portable device. An on-vehicle device having position determining means for determining the location of the portable device, engine operation determining means for determining whether the engine is operating, and shift lock release permitting means for permitting transmission gear shift lock release of the vehicle. The in-vehicle device is configured to disallow transmission gear shift lock release by the shift lock release permission means when the portable device is outside the vehicle and the engine is operating.

The present invention has the following effects.
When the communication start switch is operated, the vehicle-mounted device that starts communication and the portable device that is the communication destination of the vehicle-mounted device have a question signal to the portable device when the communication start switch is operated. Position determination means for determining the location of the portable device in the vehicle-mounted device remote control device configured to control the operation of the vehicle-mounted device by receiving a response signal in response to the question signal from the portable device. And an in-vehicle device having an engine operation determining means for determining whether the engine is operating and a shift lock release permission means for permitting release of the transmission gear shift lock of the vehicle, wherein the communication start switch is operated. When the portable device is outside the vehicle and the engine is operating, the transmission gear shift lock release by the shift lock release permission means is not permitted. Even out to the outside of the vehicle while applying the engine, it is possible to prevent the movement of the vehicle.
Further, in an in-vehicle device remote control device having a portable device and an in-vehicle device that controls the operation of the in-vehicle device by transmitting a question signal to the portable device and receiving a response signal in response to the question signal from the portable device. An on-vehicle device having position determining means for determining the location of the portable device, engine operation determining means for determining whether the engine is operating, and shift lock release permitting means for permitting transmission gear shift lock release of the vehicle. The in-vehicle device does not allow the transmission gear shift lock release by the shift lock release permission means when the portable device is outside the vehicle and the engine is operating, so even if it goes out of the vehicle with the engine running, Vehicle movement can be prevented.

Embodiment 1 FIG.
1 is a block diagram showing an in-vehicle device of an in-vehicle device remote control apparatus according to Embodiment 1 of the present invention.
In FIG. 1, 10 is a vehicle-mounted device. Hereinafter, the configuration of the in-vehicle device 10 will be described.
11 is a vehicle-mounted in-vehicle transmission antenna, 11a is a first in-vehicle transmission antenna, and 11b is a second in-vehicle transmission antenna. Reference numeral 12 denotes an outside transmission antenna for the outside of the vehicle, and 12a to 12d denote first to fourth outside transmission antennas. Six transmission antennas are provided as described above. As shown in FIG. 3 to be described later, the in-vehicle transmission antenna 11a is installed in the center console of the vehicle interior, and the in-vehicle transmission antenna 11b is installed near the rear seat. On the other hand, the outside transmission antennas 12a to 12d are provided, for example, on door handles of a vehicle (four-wheeled vehicle). Reference numeral 17 denotes a transmission unit to which each antenna is connected, 18 denotes a reception antenna, and 19 denotes a reception unit to which the reception antenna 18 is connected.
Reference numeral 20 denotes an ECU (electronic control unit) to which the transmission unit 17 and the reception unit 19 are connected, and controls the in-vehicle device 10.

The ECU 20 supplies a transmission code and a signal designating one of the in-vehicle transmission antenna 11 and the out-of-vehicle transmission antenna 12 to the transmission unit 17, and a question signal having a frequency of, for example, 134 kHz modulated by the transmission code is designated. Is transmitted from the transmitted antenna to the portable device. The vehicle is provided with a reception antenna 18. A signal having a frequency of, for example, 300 MHz from the portable device received by the reception antenna 18 is demodulated by the reception unit 19 and supplied to the ECU 20.
Reference numeral 21 denotes a memory built in the ECU 20, which is constituted by a nonvolatile memory such as an EEPROM that retains the stored contents even when the power is cut off. The memory 21 includes a first question code and a third question code for door lock. A plurality of different encryption keys corresponding to the second question code for starting the engine, the ID code for the transponder, and the like are stored. An operation detection unit 22 detects various switch operations by the user. For example, an operation switch (communication start switch that is a signal source for starting transmission of a question signal) installed on each outer door handle or an engine start operation The position of a start switch for detection or an ignition switch (such as start, ignition on, accessory on, off, and lock) is detected, and an operation detection signal is supplied to the ECU 20. Reference numeral 23 denotes a door opening / closing detection unit that detects individual opening / closing of all doors and individual locking / unlocking states of all doors and supplies detection signals to the ECU 20. Reference numeral 24 denotes a sensor group including various sensors for detecting the vehicle speed and the engine operating state, and detection signals from these various sensors are supplied to the ECU 20.

Reference numeral 25 denotes an answerback device for turning on a vehicle light or sounding a horn as a so-called answerback when the door is locked / unlocked, an alarm device for generating a buzzer for various alarms, and a display device for displaying a status It is an information part containing.
An engine control unit 30 connected to the ECU 20 controls the start of the engine using a cell motor and also controls the stop of the engine. Reference numeral 32 denotes a steering lock portion having a mechanism for mechanically prohibiting the steering operation. 34 is an immobilizer unit having a mechanism for prohibiting fuel supply and ignition operation to the engine, 36 is a door lock unit having a mechanism for locking / unlocking all doors, 38 is a transmission gear shift mechanism and other parts from the parking range. The ECU 20 outputs a lock release permission / non-permission signal from the ECU 20 in a shift lock unit configured by a lock device that prohibits shifting to the range. The steering lock unit 32, the immobilizer unit 34, the door lock unit 36, the shift lock unit 38, and the notification unit 25 are connected to the ECU 20. Reference numeral 40 denotes an engine.

FIG. 2 is a block diagram showing a portable device of the in-vehicle device remote control device according to Embodiment 1 of the present invention.
In FIG. 2, reference numeral 50 denotes a portable device, which will be described below.
52 is an ECU of the portable device 50, and 53 is a memory built in the ECU 52, and this memory 53 is the same as that stored in the memory 21 of the in-vehicle device 10 if it is a normal one, for door lock, for engine start A plurality of different encryption keys are stored. Reference numeral 54 denotes a transmission antenna, 55 denotes a transmission unit to which the transmission antenna 54 is connected, 56 denotes a reception antenna, and 57 denotes a reception unit to which the reception antenna 56 is connected. The transmission unit 55 and the reception unit 57 are connected to the ECU 52. 58 is a notification unit connected to the ECU 52, and 59 is an operation detection unit that detects a switch operation by the user and notifies the ECU 52 of the switch operation.

  A question signal having a frequency of, for example, 134 kHz from the vehicle-mounted device 10 received by the receiving antenna 56 is demodulated by the receiving unit 57 and supplied to the ECU 52. The ECU 52 reads an encryption key corresponding to the question signal from the memory 53, encrypts the question code in the question signal, creates a response signal, supplies the response signal to the transmission unit 55, and a frequency modulated by the transmission unit 55, for example, 300 MHz. Is transmitted from the transmission antenna 54 to the in-vehicle device 10. Further, the portable device 50 has a LOCK key / UNLOCK key for performing remote operation of locking / unlocking the door as a keyless entry function, and these signals are input to the ECU 52 from the operation detection unit 59.

FIG. 3 is a schematic diagram showing communication between the in-vehicle antenna and the portable device of the in-vehicle device remote control device according to Embodiment 1 of the present invention. FIG. 3A shows a case where the portable device 50 is outside the vehicle. (B) is when the portable device 50 is in the vehicle.
3, 11a, 11b, 12a to 12d, and 18 are the same as those in FIG. 1, and 50 is the same as that in FIG.

Next, communication between each antenna of the in-vehicle device 10 and the portable device 50 will be described with reference to FIG.
As a method for confirming whether the portable device is a regular registration device (partner authentication method), a so-called challenge / response method (secret key encryption-based partner authentication method) will be described as an example. A question signal with a frequency of 134 kHz is transmitted from each of the transmission antennas 11 and 12 of the in-vehicle device 10, and when the portable device 50 receives this question signal, it is created from an encryption key and a question code (plain text) corresponding to the received question signal. A response signal having a frequency of 300 MHz, which is obtained by modulating the response code (ciphertext), is returned. A signal having a frequency of 300 MHz received by the receiving antenna 18 of the in-vehicle device 10 is demodulated by the receiving unit 19 and supplied to the ECU 20, and the ECU 20 receives the response signal. The in-vehicle device 10 checks whether or not the portable device 50 is a legitimate registration device by collating the ciphertext created with the encryption key corresponding to the transmitted question code (plaintext) with the received response code.
The reason why low frequency (hereinafter abbreviated as LF) is used for communication from the in-vehicle transmission antennas 11 and 12 to the portable device 50 is that in the electromagnetic wave so that the position of the portable device 50 can be easily confirmed. This is because the magnetic field component whose strength is inversely proportional to the cube of the distance is used, and the normal communication distance is about 1 m. On the other hand, the UHF band is used for communication from the portable device 50 to the in-vehicle receiving antenna 18, which is usually a communication distance of 5 to 20 m.

FIG. 4 is a diagram showing communication signals of the in-vehicle device remote control device according to Embodiment 1 of the present invention.
FIG. 5 is a state transition diagram showing the control performed by the ECU of the in-vehicle device of the in-vehicle device remote control device according to Embodiment 1 of the present invention, and shows the basic operation of Embodiment 1.
FIG. 6 is a flowchart showing the control performed by the ECU of the portable device of the in-vehicle device remote control device according to the first embodiment of the present invention, and shows the basic operation of the first embodiment.

Next, control executed by the ECU of the in-vehicle device will be described with reference to FIG.
The control state of the ECU 20 depends on the determination result of the position of the portable device 50, state 100 (outside LF communication range), state 160 (outside LF communication range), state 180 (in-vehicle LF communication range), and the sum of state 160 and state 180 State 140 (LF communication range). Paths (arrow lines) and branch points (white circles 170 in FIG. 5) are in the middle of transition between control states, and do not stay there. Transition between a state and a branch point is performed when the condition (input) at the upper left of / written on the route is satisfied (hereinafter referred to as “transition is performed along that route”). The item (output) at the lower right of / is executed during transition of the route (no description if there is no input or output).

The program start state of the microcomputer (hereinafter abbreviated as “microcomputer”) built in the ECU 20 starts from the state 100. When the activation switch detected by the operation detection unit 22 changes from OFF to ON in the state 100, the route 101 is executed, and the first question signal is transmitted from the antenna outside the vehicle. In this case, the start switch and the outside transmission antennas 12a to 12d attached in the vicinity of each outer door handle correspond to each other, and are transmitted from the outside transmission antenna 12 attached to the same door as the start switch that is turned on from off. . When the portable device is located within the LF communication range and the response code is correct, the path 102 is executed, the door unlock output is performed, and the state 160 is transferred (also in the state 140 at this time).
Next, when the door is opened / closed for boarding, the door opening / closing detection unit 23 detects the opening / closing of the door, the route 141 is executed, and the second question signal is transmitted from the first in-vehicle antenna 11a. . If the second response signal from the portable device 50 is correct, the path 161 is executed and the state transitions to state 180.

  In the state 180, when entering the state 180, the ECU 20 outputs a steering lock release signal to the steering lock unit 32, and controls the immobilizer unit 34 to release the prohibition of fuel supply to the engine 40, and In this state, the ignition switch is also effective, and the engine 40 can also be started by turning the ignition switch. However, the period in which the immobilizer unit 34 cancels the prohibition of fuel supply to the engine 40 to ensure security is a predetermined time (for example, 5 minutes) after entering the state 180 and thereafter expires. As a means for re-enabling, for example, a start switch is provided in which an ignition switch is pushed in and turned and a signal is output when the ignition switch is pushed. If the start switch is turned on, the route 141 is executed, and if the second interrogation signal is transmitted from the in-vehicle transmission antenna 12 and the corresponding correct second response signal is received, the route 161 or the route 182 is executed and the state 180 is entered. The ECU 20 controls the immobilizer unit 34 to release the prohibition of fuel supply to the engine 40.

  When the door is opened and closed in the state 180, the door opening / closing detection unit 23 detects the opening / closing of the door, the route 141 is executed, and the second question signal is transmitted from the first vehicle interior antenna 11. When the correct second response signal is received from the portable device 50, such as when the door opening / closing is the operation of the portable device holder, the path 182 is executed and the state does not change. On the other hand, when the correct second response signal cannot be received from the portable device, such as when the portable device owner gets off, the route 181 is executed, and the third question signal is transmitted from the outside antenna mounted on the opened / closed door. Is transmitted and the state transitions to state 160. Although not shown in FIG. 5 when executing the transition to the path 181, if the ignition switch is returned to the lock position, the ECU 20 controls the immobilizer unit 34 to prohibit the fuel supply to the engine 40. When the ignition switch is in the locked position, the steering lock is mechanically operated by the steering lock mechanism.

In state 160, if a correct third response signal is received from the portable device, path 162 is executed and the state does not change at 160. On the other hand, when the correct third response signal is not received from the portable device 50, the route 142 is executed, the alarm unit 25 issues a warning about forgetting to lock the door, and the state 100 is shifted to. In the state 160, the portable device owner operates the start switch to lock the door after getting off, and when the start switch detected by the operation detection unit 22 changes from OFF to ON, the path 143 is executed, and the start switch The first interrogation signal is transmitted from the vehicle exterior antenna corresponding to. When the correct first response signal is received from the portable device 50, the path 163 is executed and reaches the branch point 170. At the branch point 170, if all the doors are closed and the ignition switch is in the locked position, the path 171 is Is executed and outputs a lock output to the door lock unit 36, and outputs an answer back signal notifying the portable device holder that the door is correctly locked, from the notification unit 25. On the other hand, whether all the doors are closed at the branch point 170 If the ignition switch is not in the locked position, the path 172 is executed, and the alarm unit 25 outputs a warning that the door cannot be locked in the open state. In either case, the state transitions to state 100.
On the other hand, when a remote operation signal (LOCK signal / UNLOCK signal) from the portable device 50, which is a conventional keyless entry function, is received, it is not shown in FIG. Unlocking is performed.

  A configuration example of the first to third question signals and the corresponding first to third response signals is shown in FIG. FIG. 4A shows the structure of a question signal, which includes a preamble (for example, 16 bits), a fixed ID code (for example, 20 bits) composed of fixed-length ID information, an additional code including information such as a question number, and each time randomly. The query code is a plaintext (for example, 32 bits) to be generated, a fixed ID code, an additional code (for example, 8 bits), and a parity code generated from the question code. FIG. 4B shows a response signal structure in which a preamble, a fixed ID code including fixed-length ID information, an additional code including information such as a question number, and a question code received with an encryption key corresponding to the question number are encrypted. And a parity code generated from a fixed ID code, an additional code, and a response code.

  It should be noted that the remote control signal in the case of performing keyless entry for controlling locking / unlocking of the vehicle door by pressing a button provided on the portable device 50 is replaced with a response code as shown in FIG. Set the rolling code to. The rolling code is a value that is counted up each time the portable device 50 transmits radio waves, and the in-vehicle device 10 stores the rolling code included in the predetermined code received from the portable device 50 in the previous time. When the rolling code included in the received predetermined code is within a predetermined range from the value of the previous rolling code, it is determined that the current rolling code is correct, and it is determined that the received predetermined code matches the specific code. This additional code includes identification information of the response signal and the remote control signal.

Next, the operation of the portable device 50 will be described based on the flowchart of FIG.
When the ECU 52 starts from the reset state due to battery replacement or the like, the process starts from START (step 500), the ECU 52 is initially set in step 501, and the process waits in step 502.
If there is a LOCK key input in step 503, WAKE UP (step 504) and a LOCK signal which is a remote operation signal is transmitted (step 505). After the transmission is completed, the process returns to step 502. If there is no LOCK key input in step 503, the process goes to step 506.
If there is an UNLOCK key input in step 506, WAKE UP (step 507) and an UNLOCK signal which is a remote operation signal is transmitted (step 508). After the transmission is completed, the process returns to step 502. If there is no UNLOCK key input in step 506, the process goes to step 509.
In step 509, if there is reception (LF reception) from the in-vehicle device, WAKE UP (step 510) and a response signal is transmitted (step 511). After the transmission is completed, the process returns to step 502. If no interrogation signal is received in step 509, the process goes to step 502.

In this way, a fixed ID code is placed at the head of each signal only when the start switch is operated or the door is opened and closed, and the in-vehicle device transmits a modulated signal of the question signal including the question code. When this interrogation signal is received, a modulated signal of a response signal including a response code corresponding to the response signal is transmitted, and the portable device receives the response signal, and the response code in the received signal is transmitted. The question code and the encryption code created from the corresponding encryption key are collated to confirm that it is a legitimate portable device, so security is maintained and power consumption of both the in-vehicle device and the portable device is reduced. Can be planned. If the fixed ID at the head of each question and response signal does not match its own ID, both the portable device and the in-vehicle device can be more suitable systems by preventing the transition from the low power consumption mode to the normal power consumption mode. It becomes.
The above is the basic operation of the in-vehicle device remote control device according to the first embodiment.

By the way, when the vehicle parking place and the place where the portable device is placed are relatively close, there is a problem that the door / unlock is activated when another person who does not have the portable device operates the start switch. The smart entry function prohibition process based on the test signal (confirmation signal) described below tries to solve this.
FIG. 7 is a state transition diagram showing the control performed by the ECU of the in-vehicle device of the in-vehicle device remote control device according to Embodiment 1 of the present invention, and relates to the smart entry function prohibiting process.
FIG. 8 is a flowchart showing control performed by the ECU of the portable device of the in-vehicle device remote control device according to Embodiment 1 of the present invention, and relates to the smart entry function prohibiting process.

In FIG. 7, the state of the vehicle-mounted device is in the state 100 after getting off the vehicle and finishing the door lock operation. When the portable device holder wants to check whether the portable device 50 is in an area where LF communication with the in-vehicle device 10 is possible, a push button switch (operation switch for instructing remote control of the operation means of the portable device 50 such as a door lock, for example. ), A test request signal is transmitted from the transmission antenna 54. Others are the same as those described above with reference to FIG.
The configuration of the test request signal is, for example, a LOCK signal that is a normal remote control signal as shown in FIG. When the in-vehicle device receives this test request signal (LOCK signal), the path 103 is executed, and test signals (confirmation signals) for confirming the reception state of the portable device are sequentially transmitted from the outside antennas 12a to 12d. The configuration of the test signal is, for example, the configuration shown in FIG. 4A, and the additional code includes information identifying the test signal.

  In FIG. 8, the ECU 52 of the portable device receives LF at step 509 and WAKE UP (step 510), and if the prohibition flag is cleared at step 601, determines whether the received signal is a question signal or a test signal at step 602. If it is a test signal, the notification unit 58 notifies the state that the test signal is ready to be received. When the prohibition flag is set in step 601, it returns to the standby mode (step 502) because the smart entry function is stopped. The portable device holder who has confirmed the reception state in step 603 turns on the LOCK key and the UNLOCK key simultaneously for a predetermined time or longer (5 seconds or longer in this example) in order to temporarily stop the smart entry function. In this case, in the flowchart of FIG. 8, it is confirmed in step 605 that the LOCK key and the UNLOCK key are simultaneously turned on, and the process proceeds to step 606. If it is determined in step 606 that both keys have been pressed for 5 seconds or longer, a prohibition flag is set in step 607. In this example, clearing the prohibition flag is realized when only the UNLOCK key is pressed. This is the process of step 604. The other steps in FIG. 8 (500th step) are the same as those in FIG.

FIG. 9 is a flowchart showing another control performed by the ECU of the portable device of the in-vehicle device remote control device according to Embodiment 1 of the present invention, and relates to the smart entry function prohibiting process.
In FIG. 8, the prohibition flag is set by a special operation of the switch (simultaneously turning on the lock and unlock keys), but FIG. 9 shows that this is automatically performed.
In FIG. 9, when the signal received at step 602 is a test signal, a prohibition flag is set at step 603.
8 and 9, this prohibition flag is cleared in step 604 when an unlock key is operated, but may be cleared after a predetermined time (for example, 1 hour) has elapsed from the flag set. In FIG. 7, the condition for executing the path 103 is simply a remote signal, but it may be a special combination of remote signals. For example, when a plurality of LOCK signals are received within a predetermined time (for example, 5 seconds). It is preferable because it can be distinguished from normal operation.

According to the first embodiment, means for transmitting a test signal for confirming the reception state of the portable device in response to a remote operation signal from the portable device, and control of the operating state by code verification when the test signal can be received are prohibited Since the means for performing this operation is provided, the communication area of the portable device can be confirmed, and control of the operating state by code verification can be prohibited as necessary, and security can be improved.
In addition, since the test request signal is a normal door lock signal, it can be executed without adding a special operation key for transmitting the test request signal and without increasing the number of codes, and the door lock operation and LF reception. The convenience that the status can be confirmed with one operation can be improved.

  In addition, since a notification means for notifying the reception state of the test signal is provided and the owner can be notified when the test signal can be received, the control of the operation state by code verification can be prohibited by the owner's judgment. The user can select whether to implement this prohibition means or to move to a position where reception is not possible without prohibition, thereby improving convenience.

Embodiment 2. FIG.
In Embodiment 1, when the in-vehicle device receives the UNLOCK signal of the remote operation signal from the portable device, it immediately performs the unlocking operation of all doors. This has the problem that the owner of the portable device enters the vehicle before reaching the target door. It is the cooperative operation of the keyless entry and smart entry described below that attempts to solve this.

FIG. 10 is a state transition diagram showing control performed by the ECU of the vehicle-mounted device of the vehicle-mounted device remote control device according to Embodiment 2 of the present invention, and relates to the cooperative operation executed by the ECU 20.
In FIG. 10, when the unlock signal of the remote operation signal is received from the portable device 50 in the state 100, the path 194 is executed, and thereafter at a constant period (for example, for 5 minutes) or until the state 100 is not reached ( An interrogation signal is transmitted from the outside transmission antenna 12 (for example, every 0.3 seconds). If the mobile phone holder approaches the door and approaches a distance where the interrogation signal can be received, the response signal is returned, and the verification is successful, only the door with the outside transmitting antenna installed immediately before or the door Two doors on the same side (right side or left side) including, or all doors are unlocked. Others are the same as those described above with reference to FIG.

  According to the second embodiment, when the remote operation signal for unlocking the door is received, the transmission of the inquiry signal is started. Therefore, the door is locked until the portable device holder approaches the door, and security is ensured. In addition to improving the performance, the unlocking signal of the remote operation signal is transmitted in advance, so that the door is unlocked without operating the start switch, and the convenience is improved. In addition, the question signal is periodically transmitted only when necessary, compared to a system in which the question signal is always transmitted from the in-vehicle device without using the start switch, so that there is an advantage of power saving.

Embodiment 3 FIG.
In Embodiment 2, when going out of the vehicle with the engine running, there is a problem that it is not possible to prohibit the movement of the vehicle due to careless operation of a child in the passenger compartment, for example. In order to solve this problem, the lock mechanism release non-permission setting process (hereinafter simply referred to as “shift lock release”) that locks the transmission gear so that it is not shifted from the P (parking) position to another position will be described. It is expressed as non-permission setting processing).

FIG. 11 is a state transition diagram showing the control performed by the ECU of the vehicle-mounted device of the vehicle-mounted device remote control device according to Embodiment 3 of the present invention, and relates to the release non-permission setting process executed by the ECU 20.
A case will be described in which the portable device owner goes out of the vehicle with the engine running from the driver's seat and operates the start switch to perform the shift lock release non-permission setting process.
In FIG. 11, starting from the state 180, the route 141 is implemented by opening and closing the door, and the second interrogation signal is transmitted from the in-vehicle transmission antenna 11. Is not received (the position of the portable device is determined by the position determination means), the route 181 is implemented, the third interrogation signal is transmitted from the outside transmission antenna 12, and the state 160 is shifted to. In state 160, the third response signal is received, so path 162 is implemented and remains in this state.

  Eventually, since the start switch is operated, the route 143 is executed, and when the first interrogation signal is transmitted from the outside transmission antenna 12 and the correct first response signal is received, the route 163 is executed and the branching point 170 is reached. It arrives. At the branch point 170, if the ignition switch is in the locked position and all the doors are closed, the path 171 is executed, the door is locked, and the state 100 is shifted to. On the other hand, when the ignition switch position is other than the lock, it is determined that the engine is running (the engine operation determining means determines that the engine is operating), the path 172 is executed, and the shift gear shift lock is not released. A permission is set (shift lock release permission means is used to disable shift lock release), and an alarm is issued to shift to state 100. If the ignition switch is in the locked position and all the doors are not in the closed state, the path 173 is executed, an alarm is issued, and the state 100 is shifted to. Others are the same as those described above with reference to FIG.

  According to the third embodiment, when it is determined that the position of the portable device is outside the passenger compartment, when it is determined that the engine is operating, and when the start switch is operated, the transmission gear shift lock release is not permitted. Therefore, even when the engine is running, the vehicle can be prevented from moving, and convenience and security can be improved.

Embodiment 4 FIG.
In the third embodiment, the shift lock release non-permission setting process is performed when the start switch is operated, but it is also assumed that the start switch is not operated. In the fourth embodiment, shift lock release disapproval setting processing is performed even when the start switch is not operated.

FIG. 12 is a state transition diagram showing the control performed by the ECU of the in-vehicle device of the in-vehicle device remote control device according to Embodiment 4 of the present invention, and relates to the release non-permission setting process executed by the ECU 20.
The shift lock release prohibition setting process when it is determined that the portable device holder has left the vehicle with the engine running from the driver's seat will be described.
In FIG. 12, starting from the state 180, the door 141 is opened and closed, the route 141 is implemented, and the second question signal is transmitted from the in-vehicle transmission antenna 11. However, since the portable device owner is outside the vehicle, the second response signal Is not received (the position of the portable device is determined by the position determination means), the route 181 is implemented, the third interrogation signal is transmitted from the outside transmission antenna 12, and the branch point 190 is reached. If the ignition switch position is other than the lock at the branch point 190, it is determined that the engine is running (the engine operation determining means determines that the engine is operating), the path 191 is implemented, and the shift gear shift lock release disapproval process (shift The lock release permission means disallows shift lock release), and the state 160 is reached. Further, when the ignition switch position is locked, a route 192 for performing nothing is performed and the state 160 is reached. The subsequent steps are the same as those described above with reference to FIG.

  According to the fourth embodiment, when it is determined that the position of the portable device is outside the passenger compartment and the engine is determined to be operating, the transmission gear shift lock release is not permitted. In addition, the vehicle can be prevented from moving, and convenience and security can be improved.

Embodiment 5. FIG.
In the fourth embodiment, when leaving the portable device in the vehicle and leaving the vehicle, there is a problem that the vehicle interior misplacement alarm is not made. It is the vehicle interior misplacement alarm process of the fifth embodiment described below that tries to solve this.

FIG. 13 is a state transition diagram showing the control performed by the ECU of the in-vehicle device of the in-vehicle device remote control device according to Embodiment 5 of the present invention, and relates to the vehicle interior misplacement alarm process executed by the ECU 20.
A description will be given of a process of giving a vehicle interior misplacement warning when the portable device owner leaves the vehicle with the portable device in the passenger compartment from the driver's seat.
In FIG. 13, starting from the state 180, the door 141 is opened and closed (detected by the lock detection means), the route 141 is implemented, and the second interrogation signal is transmitted from the in-vehicle transmission antenna 11. Therefore, the second response signal is received (the position of the portable device is determined by the position determination unit), the path 186 is performed, and the branch point 185 is reached. At the branch point 185, it is detected whether or not the door activation switch corresponding to a predetermined time (for example, within 10 seconds) has been turned on after the door is opened and closed. Is determined, an alarm is issued, and the process returns to the state 180. When the corresponding door activation switch is not turned on at the branch point 185, the route 187 is executed, and nothing is output, and the process returns to the state 180. Others are the same as those described above with reference to FIG.

  According to the fifth embodiment, when it is determined that the position of the portable device is in the vehicle interior and the operation of the activation switch is detected, a warning about leaving the portable device in the vehicle interior is issued, so that security can be improved. .

It is a block diagram which shows the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 1 of this invention. It is a block diagram which shows the portable machine of the vehicle equipment remote control apparatus by Embodiment 1 of this invention. It is a schematic diagram which shows communication of the vehicle-mounted antenna of the vehicle-mounted apparatus remote control apparatus by Embodiment 1 of this invention, and a portable device. It is a figure which shows the signal of communication of the vehicle equipment remote control apparatus by Embodiment 1 of this invention. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 1 of this invention performs. It is a flowchart which shows the control which ECU of the portable machine of the vehicle equipment remote control apparatus by Embodiment 1 of this invention performs. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 1 of this invention performs. It is a flowchart which shows the control which ECU of the portable machine of the vehicle equipment remote control apparatus by Embodiment 1 of this invention performs. It is a flowchart which shows another control which ECU of the portable machine of the vehicle equipment remote control apparatus by Embodiment 1 of this invention performs. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 2 of this invention performs. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 3 of this invention performs. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 4 of this invention performs. It is a state transition diagram which shows the control which ECU of the vehicle equipment of the vehicle equipment remote control apparatus by Embodiment 5 of this invention performs.

Explanation of symbols

10 in-vehicle device, 11 in-vehicle transmission antenna, 12 out-of-vehicle transmission antenna,
18 receiving antenna, 19 receiving unit, 20 ECU, 21 memory,
22 operation detection units, 23 door opening / closing detection units, 24 sensor groups, 25 notification units,
30 engine control unit, 32 steering lock unit,
34 immobilizer, 36 door lock, 38 shift lock,
40 engine, 50 portable machine, 52 ECU, 53 memory,
54 transmitting antenna, 55 transmitting unit, 56 receiving antenna, 57 receiving unit,
58 notification unit, 59 operation detection unit.

Claims (2)

When the communication start switch is operated, the vehicle has a vehicle-mounted device that starts communication and a portable device that is a communication destination of the vehicle-mounted device, and the vehicle-mounted device is operated by operating the communication start switch. In the in-vehicle device remote control device configured to control the operation of the in-vehicle device by transmitting the interrogation signal to the mobile device and receiving a response signal in response to the interrogation signal from the portable device, the location of the portable device is determined. An in-vehicle device having position determining means, engine operation determining means for determining whether or not the engine is operating, and shift lock release permitting means for permitting transmission gear shift lock release of the vehicle. When the communication start switch is operated, if the portable device is outside the vehicle and the engine is operating, the transmission gear by the shift lock release permission means Vehicle equipment remote control system, characterized by that disallowed Futorokku release. In a vehicle-mounted device remote control device having a portable device and a vehicle-mounted device that controls the operation of the vehicle-mounted device by transmitting a question signal to the portable device and receiving a response signal in response to the question signal from the portable device. An on-vehicle device having position determining means for determining the location of the portable device, engine operation determining means for determining whether the engine is operating, and shift lock release permitting means for permitting transmission gear shift lock release of the vehicle. The vehicle-mounted device remote control device is characterized in that, when the portable device is outside the vehicle and the engine is operating, the transmission gear shift lock release by the shift lock release permission means is not permitted. .

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