JP2002037024A - Remote operating device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote operating device for a vehicle that can lengthen the battery life of a portable unit. SOLUTION: The portable unit has one switch for locking and unlocking a door lock. The portable machine alternately transmits a first transmit signal including an ID code and a locking code, and a second transmit signal including an ID code and an unlocking code every time the switch is operated. The second transmit signal is transmitted for a specified time set longer than the transmission time of the first transmit signal. A receiving device compares the ID codes with each other when receiving the transmit signal and locks or unlocks the door lock on condition that the ID codes coincide with each other. While the ID codes are coincident with each other, an engine is put in a startable state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a remote control device for a vehicle, and more particularly, to a remote control device for a vehicle having a smart ignition function.

[0002]

2. Description of the Related Art In recent years, automobiles have been required not only to improve their basic performance and safety but also to improve their operability. For example, a remote control device for a vehicle that remotely controls various devices provided in a vehicle is a typical example of a mechanism that can improve operability.

[0003] As a specific example of a vehicle remote control device, a vehicle remote control device having both functions of a smart entry device and a function of a smart ignition device has been proposed.

The smart entry device automatically unlocks (unlocks) a door lock when a vehicle owner (driver) approaches the vehicle, and unlocks the door lock when the driver leaves the vehicle. This device locks automatically. The smart ignition device enables the engine to be started only by operating a switch or the like without using a current mechanical key. That is, the engine is brought into a start standby state.

[0005] Such a remote control device for a vehicle includes a portable device carried by the driver and a transmitting / receiving device mounted in the vehicle. The transmitting / receiving device is provided with a transmitting antenna. The transmitting antenna is located in a predetermined area around the vehicle.
Request signal and the second
Is transmitted. When the portable device receives these request signals, a transmission signal is automatically returned from the portable device.

When the transmitting / receiving device receives the transmission signal, the ID code included in the transmission signal is compared with a predetermined ID code set in advance. If the ID codes match, and the transmission signal is a response to the first request signal, the vehicular remote control device functions as a smart entry device. If the transmission signal is a response to the second request signal, the vehicle remote control device functions as a smart ignition device.

However, there is an area (null point) in the vehicle cabin where a transmission signal from the portable device cannot be received by the transmission / reception device. As a result, when the portable device is located at the null point, the engine cannot be started even though the portable device is in the vehicle compartment. Therefore, in order to eliminate such a null point, it was necessary to add a transmitting antenna in the vehicle interior.
Therefore, the remote control device for a vehicle has a problem that the system configuration becomes complicated as a whole.

[0008] In order to solve this problem, there has been proposed a remote control device for a vehicle having both the function of a keyless entry device and the function of a smart ignition device. This vehicle remote control device includes a portable device and a receiving device. The portable device has a switch for locking and unlocking the door lock. As a specific example of this portable device,
One that locks and unlocks a door lock with one switch has been proposed. In this case, when the switch is operated, the portable device transmits a transmission signal including a predetermined ID code set in advance. I when locking the door lock
The D code and the ID code for unlocking the door lock are set to the same one. The ID code included in the transmission signal is compared with a preset ID code, and the receiving device operates the door lock on condition that the ID codes match.
Specifically, when the door lock is locked, the door lock is unlocked, and when the door lock is unlocked, the door lock is locked. That is, the vehicle remote control device functions as a keyless entry device. Also,
When the switch is operated, the portable device continuously transmits a transmission signal. Then, when the ID codes match each other again, the receiving device sets the engine to a startable state. That is, the vehicle remote control device functions as a smart ignition device.

[0009]

However, it receives what the transmission signal transmitted from the portable device is (for locking the door lock or unlocking the door lock). Could not be determined by device. Therefore, in order for the smart ignition device to function reliably, it is necessary to always transmit a transmission signal for a predetermined time after operating the switch. As a result, even when the door lock is locked, the transmission time is the same as when the door lock is unlocked and the smart ignition function is activated, so that power is wasted. Therefore, there is a problem that the battery life of the portable device is shortened.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a remote control device for a vehicle which can extend the battery life of a portable device.

[0011]

In order to achieve the above object, the invention according to claim 1 has one switch for locking and unlocking a door lock, and when the switch is operated. A portable device that transmits a transmission signal including a predetermined ID code, and compares the ID code with a preset ID code when the transmission signal is received.
After locking or unlocking the door lock on condition that the codes match, the ID codes are compared again,
A remote control device for a vehicle, comprising: a receiving device that sets an engine in a startable state when the ID codes match with each other, wherein the portable device includes a first transmission signal obtained by adding a lock code to the transmission signal; A second transmission signal obtained by adding an unlocking code different from the locking code to the transmission signal is transmitted alternately each time the switch is operated, and
The gist of the present invention is to transmit a transmission signal for a longer time than the first transmission signal.

According to a second aspect of the present invention, in the first aspect, the unlock code and the ID code are repeatedly transmitted within a transmission time of the second transmission signal. And

According to a third aspect of the present invention, in the first aspect of the present invention, after the unlock code and the ID code are transmitted within the transmission time of the second transmission signal, the same ID is transmitted. The gist is that the code is repeatedly transmitted.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the owner of the portable device is located in a vehicle compartment or the door is open. After at least one of the facts is detected by the detecting means provided in the vehicle, the receiving device compares the ID codes again, and determines a predetermined time from the coincidence of the ID codes as a permission time. The gist of the present invention is to make the engine startable during the permitted time.

Hereinafter, the "action" of the present invention will be described. According to the first aspect of the present invention, the second transmission signal obtained by adding the unlock code to the ID code is transmitted for a longer time than the first transmission signal obtained by adding the lock code to the ID code. Therefore, the second transmission signal is continuously transmitted even after the door lock is unlocked. Therefore, the engine can be started while the ID codes match. On the other hand, since the first transmission signal does not require starting of the engine, a transmission time shorter than the transmission time of the second transmission signal is sufficient. Therefore, the power consumption of the portable device is reduced. Therefore, the battery life of the portable device can be extended.

According to the second aspect of the present invention, if the switch is operated once to unlock the door, the unlock code and the ID code are repeatedly transmitted from the portable device within a predetermined time. . Therefore, even if the switch is operated in a place where the second transmission signal does not reach the receiving device, if the owner of the vehicle holding the portable device moves to a range where the receiving device can receive the second transmission signal within a predetermined time, , The door lock is unlocked. Therefore, the operability of the portable device can be improved.

According to the third aspect of the invention, the second transmission signal transmitted first includes both the unlock code and the ID code, but is repeatedly transmitted within a predetermined time after the second transmission. The transmitted second transmission signal includes only the ID code. Therefore, if the receiving device receives the second transmission signal,
The engine is ready to start immediately. Therefore, the response for making the engine startable can be improved.

According to the present invention, after the door lock is unlocked, the receiving device compares the ID codes. Then, on condition that the ID codes match, the engine can be started during the permitted time. If the engine is not started within the permitted time, the receiving device compares the ID codes again. Then, provided that the ID codes match, the engine is ready to be restarted during the permitted time. Therefore, the second transmission signal can be transmitted intermittently at the timing when the permission time ends. Therefore, the battery life of the portable device can be more reliably prolonged.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Hereinafter, a first embodiment of a vehicle remote control device embodying the present invention will be described with reference to FIGS.
This will be described in detail with reference to FIG.

As shown in FIG. 1, a remote control device 1 for a vehicle is used.
1 is a portable device 12 carried by the owner (driver) of the vehicle.
And a receiving device 13 mounted on the vehicle. The portable device 12 is provided as an accessory to an ignition key carried by the driver. This portable device 12
Is composed of one switch 21, a microcomputer (microcomputer) 23, and a transmission circuit 24.

The switch 21 is for locking and unlocking the door lock. This switch 21 is connected to the microcomputer 23
Are electrically connected to When the switch 21 is operated, the microcomputer 23 transmits the first transmission signal or the second transmission signal for a predetermined time. The second transmission signal is transmitted for a longer time than the first transmission signal. The output levels of the first transmission signal and the second transmission signal are always constant. The first transmission signal and the second transmission signal are transmitted alternately each time the switch 21 is operated.

As shown in FIG. 3, the first transmission signal includes a header for prompting the operation of the receiving device 13, a predetermined ID code set in advance, and a locking code for locking the door. The first transmission signal includes a header, a lock code,
The ID codes are transmitted in order. The length A1 of the ID code is set longer than the length A2 of the lock code. Further, the second transmission signal includes a header for prompting the operation of the receiving device 13, a predetermined ID code set in advance, and an unlock code for unlocking the door lock. The ID code included in the second transmission signal is the same as the ID code included in the first transmission signal, and the unlock code is different from the lock code. The second transmission signal is transmitted in the order of the header, the unlock code, and the ID code. The length A1 of the ID code is set longer than the length A2 of the unlock code. As shown in FIG. 3, the second transmission signal is repeatedly transmitted within a predetermined time. This second transmission signal is intermittently transmitted from the portable device 12 every time T3. The length of time T3 is 1
It is set to 00 ms or less. As shown in FIGS. 2 and 3, the predetermined time at which the first transmission signal is transmitted is a first transmission signal transmission time T1, and the predetermined time at which the second transmission signal is transmitted is a second transmission signal transmission time. T2. In the present embodiment, the first transmission signal transmission time T1 is about 100 ms.
And the second transmission signal transmission time T2 is set to about 1 minute.

The transmission circuit 24 is a circuit for modulating the first transmission signal and the second transmission signal into radio waves of a predetermined frequency and transmitting the radio waves to the outside. In the present embodiment, the frequencies of the first transmission signal and the second transmission signal are set to 300 MHz. That is, when the switch 21 is operated, the portable device 12 transmits the first transmission signal and the second transmission signal to the receiving device 13. The transmission circuit 2
4 is connected to a transmission antenna 25.

On the other hand, the receiving device 13 comprises a receiving circuit 31 and a microcomputer (microcomputer) 32. A receiving antenna 33 is connected to the receiving circuit 31. The microcomputer 32 includes the door lock driving device 1
4, an engine starting device 15, a start switch 16, and a door courtesy switch 17 as a detecting means are connected. The start switch 16 is a switch provided near the driver's seat in the vehicle compartment. The door courtesy switch 17 is a switch provided on the door of the vehicle and detecting the open / closed state of the door. The receiving circuit 31 receives the first transmission signal and the second transmission signal transmitted from the portable device 12 via the reception antenna 33, demodulates the first transmission signal and the second transmission signal into a pulse signal, and receives the pulse signal. A signal is generated. At the same time, the receiving circuit 31
Outputs the received signal to the microcomputer 32.

The microcomputer 32 includes a C (not shown)
It is a CPU unit composed of PU, ROM, and RAM.
The microcomputer 32 stores a predetermined ID code set in advance. When the received signal is input to the microcomputer 32, the receiving device 13 determines the lock code included in the first transmission signal and the unlock code included in the second transmission signal. Further, the receiving device 13 receives a predetermined ID code preset in the microcomputer 32 and a reception signal (the portable device 12).
Is compared with the ID code included in the transmission signal from the.
When the ID codes match, the door lock driving device 14 is driven first. Specifically, when the switch 21 is operated, the door lock is automatically locked or unlocked by driving the door lock driving device 14. That is,
The vehicle remote control device 11 functions as a so-called keyless entry device.

When the door is unlocked, the microcomputer 32 compares the ID codes again. The ID code used here is the same as the ID code used for the keyless entry device. When the ID codes match, the microcomputer 32 outputs a permission signal to the engine starting device 15 to put the engine in a start standby state. This permission signal
The output is performed for a predetermined time while the ID codes match. Here, the predetermined time refers to an engine startable time t1 shown in FIG. When the start switch 16 is operated in this state, a starter relay (not shown) is turned on, and a starter motor (not shown) is driven.
The engine starts. That is, the vehicle remote control device 11 also functions as a smart ignition device.

Next, the operation of the vehicle remote control device 11 will be described. As shown in FIG. 2, in step S1, each time the switch 21 provided on the portable device 12 is operated, the first transmission signal and the second transmission signal are transmitted alternately. If the switch operation is to lock the door lock, a first transmission signal including the locking code and the ID code is transmitted from the microcomputer 23 to the receiving device 13 in step S2. This first transmission signal is transmitted for a predetermined time after the switch 21 is operated. As shown in FIGS. 2 and 3, the predetermined time during which the first transmission signal is transmitted is a first transmission signal transmission time T1. In step S3, the receiving circuit 31 receives the first transmission signal by the CPU provided in the microcomputer 32 constituting the receiving device 13. And
In step S4, it is determined whether or not the unlock code is included in the first transmission signal. Since the first transmission signal does not include the unlock code, the first transmission signal shifts to the process of step S9. In step S9, it is determined whether or not the first transmission signal includes a lock code. Since the first transmission signal includes the lock code, the microcomputer 32 compares the ID code included in the first transmission signal with a predetermined ID code preset in the microcomputer 32. Then, step S1
In the case of 0, a match between the ID codes is confirmed. In step S11, the door lock is locked on condition that the ID codes match.

If the lock code is not included in step S9, all the operations are terminated in step S12. That is, it is determined that the portable device 12 is not for the driver.

If the switch operation is an operation for unlocking the door lock, the unlock code and the ID are determined in step S2.
A second transmission signal including the code is transmitted from the microcomputer 23 to the receiving device 13. The second transmission signal is transmitted for a predetermined time after the switch 21 is operated. As shown in FIGS. 2 and 3, the predetermined time during which the second transmission signal is transmitted is a second transmission signal transmission time T2. Then, in step S3, the receiving device 13 receives the second transmission signal. Then, in a step S4, it is determined whether or not the unlock code is included in the second transmission signal. Since the second transmission signal includes the unlock code, the microcomputer 32 compares the ID code included in the second transmission signal with a predetermined ID code preset in the microcomputer 32. Then, in step S5, a match between the ID codes is confirmed. In step S6, on condition that the ID codes match, the door lock is unlocked and the door can be opened and closed.

Here, the microcomputer 32 compares the ID codes again. Then, in step S7, those IDs
The code matches. In step S8, on condition that the ID codes match, the microcomputer 32 issues a permission signal to the engine starting device 15 to put the engine in a start standby state. Accordingly, the engine startable time t1 shown in FIG. 2 is between the time when the ID codes match each other and the time when the transmission of the second transmission signal ends. Further, since the engine can be started while the ID codes match, the portable device 12 is required while the ID codes match. Then, by operating the start switch 16 within such an engine startable time t1, the engine is started.

When the switch 21 of the portable device 12 is operated twice after the elapse of the engine startable time t1, a second transmission signal is transmitted from the microcomputer 23 to the receiving device 13. In this case, the microcomputer 32 compares the ID codes again. Then, on condition that the ID codes match each other, the microcomputer 32 issues a permission signal to the engine starting device 15, and the engine is again in the starting standby state.

According to this embodiment, the following effects can be obtained. (1) The second transmission signal obtained by adding the unlock code to the ID code is transmitted for a longer time than the first transmission signal obtained by adding the lock code to the ID code. Therefore, the second transmission signal is continuously transmitted even after the door lock is unlocked. Therefore, the engine can be started while the ID codes match. On the other hand, since the first transmission signal does not require starting of the engine, a transmission time shorter than the transmission time of the second transmission signal is sufficient. Therefore, in the first transmission signal, transmission of a portion that is wasted because the engine is not started is omitted. Therefore, the power consumption of the portable device 12 after the door lock is locked is reduced. Therefore, the battery life of the portable device 12 can be extended.

(2) If the switch 21 is operated once to unlock the door lock, the unlock code and the I
The D code is repeatedly transmitted within a predetermined time. Therefore, even if the switch 21 is operated in a place where the second transmission signal does not reach the reception device 13, the owner of the vehicle carrying the portable device 12 can receive the second transmission signal within a predetermined time. If you move to, the door lock will be unlocked. Therefore, the operability of the portable device 12 can be improved.

(3) The length A1 of the ID code is set longer than the length A2 of the lock code and the unlock code. Therefore, as soon as the receiving device 13 determines whether the code is a lock code or an unlock code, the first transmission signal and the second
The ID code included in the transmission signal is compared with an ID code preset in the microcomputer 32. The door lock is locked and unlocked on condition that the ID codes match. Therefore, the door lock can be quickly locked and unlocked. (Second Embodiment) Next, a second embodiment of a vehicle remote control device embodying the present invention will be described in detail with reference to FIGS. In the second embodiment, only the operation of the vehicle remote controller 11 is different from that of the first embodiment, and the configuration of the vehicle remote controller 11 is the same as that of the first embodiment. Therefore, here, the operation of the vehicle remote control device 11 will be mainly described.

As shown in FIG. 4, in step S31,
Each time the switch 21 provided on the portable device 12 is operated,
The first transmission signal and the second transmission signal are transmitted alternately. If the switch operation is an operation to lock the door lock, a first transmission signal including the locking code and the ID code is transmitted from the microcomputer 23 to the receiving device 13 in step S32. In step S13, the receiving circuit 31 receives the first transmission signal by the CPU provided in the microcomputer 32 constituting the receiving device 13. And the microcomputer 32
Determines whether the first transmission signal includes an unlock code. If it is determined that the unlock code is not included in the first transmission signal, the microcomputer 32 determines whether the locking code is included in the first transmission signal. Since the first transmission signal includes the lock code, the microcomputer 32 compares the ID code included in the first transmission signal with a predetermined ID code preset in the microcomputer 32. And their ID
If the codes match, the door lock is locked. If the lock code is not included in the first transmission signal, the microcomputer 3
2 ends the processing here. That is, it is determined that the portable device 12 is not for the driver.

If the switch operation is for unlocking the door lock, in step S32, the unlock code and I
A second transmission signal including the D code is transmitted from the microcomputer 23 to the receiving device 13. The second transmission signal is transmitted for a predetermined time after the switch 21 is operated. Here, the predetermined time is the second time shown in FIG.
This is the transmission signal output time T2. As shown in FIG.
The transmission signal is transmitted every predetermined transmission period T5 immediately after the switch 21 is operated. Each second transmission signal is transmitted with an interval of intermittent time T4.

Then, in step S14, the microcomputer 3
2 is the ID code included in the second transmission signal and the microcomputer 32
Is compared with a predetermined ID code set in advance. If it is determined that the ID codes match, the microcomputer 32 proceeds to the processing in step S15. In addition, ID
If it is determined that the codes do not match, the microcomputer 32 ends the processing here.

In step S15, the microcomputer 32
Drives the door lock driving device 14 on condition that the ID codes match, thereby unlocking the door and opening the door. In step S16, the microcomputer 32 determines whether or not the door courtesy switch 17 has detected the open state of the door. When the open state of the door is detected, the microcomputer 32 proceeds to step S.
The processing shifts to step S17. If the open state of the door is not detected in step S16, the microcomputer 32 proceeds to the processing in step S23. In step S23,
The microcomputer 32 determines whether or not a predetermined unlocking time T6 has elapsed. In the present embodiment, the unlocking time T6 is set to 30 seconds after the unlocked state of the door is detected in step S15. Here, the unlock time T6
Is not elapsed, the microcomputer 32 performs the process of step S16 again. That is, these steps S
Steps S16 and S23 are repeatedly performed for a predetermined time until the door courtesy switch 17 detects the open state of the door. Step S2
If it is determined in 3 that the unlocking time T6 has elapsed,
The microcomputer 32 locks the door by moving to the process of step S24 and driving the door lock driving device 14. Thereafter, the microcomputer 32 once ends the processing here.

In step S17, the receiving circuit 31
Receives the second transmission signal transmitted from the portable device 12 again. Then, the microcomputer 32 determines whether or not the second transmission signal has been successfully received. When the microcomputer 32 determines that the second transmission signal has been successfully received, the microcomputer 32 proceeds to the process of step S19. When the microcomputer 32 determines that the second transmission signal has not been received, the microcomputer 32
Shifts to the process of step S18. In step S18, the microcomputer 32 determines whether a predetermined reception monitoring time T7 has elapsed. Here, the reception monitoring time T
If 7 has not elapsed, the receiving circuit 31 performs the process of step S17 again. That is, the processing of steps S17 and S18 is repeatedly performed within the predetermined reception monitoring time T7 until the receiving circuit 31 receives the second transmission signal. Here, as shown in FIG. 5, the reception monitoring time T7 is set to the same length as the transmission cycle T5 or slightly longer than the transmission cycle T5.
Further, the microcomputer 32 generates a reception trigger signal in accordance with the rise of the second transmission signal.

In step S18, the microcomputer 3
If the microcomputer 2 determines that the reception monitoring time T7 has elapsed, the microcomputer 32 estimates that the portable device 12 is not located in the vehicle compartment, and proceeds to the process of step S27. Then, in step S27, the start of the engine is prohibited, and the microcomputer 3
2 temporarily terminates the processing here.

In step S19, the microcomputer 32
Compares the ID codes again to determine whether the ID codes match. If it is determined that the ID codes match, the microcomputer 32 proceeds to the process in step S20. If it is determined that the ID codes do not match, the microcomputer 32 proceeds to the process in step S27. Then, in step S27, the start of the engine is prohibited, and the microcomputer 32 temporarily ends the processing here.

Then, in step S20, these IDs
On condition that the codes match, the microcomputer 32
Outputs an engine start permission signal to the engine starter 15. As a result, the engine enters a start standby state. Therefore, in this state, the start switch 16
By operating, the engine is started.

In step S21, it is determined whether or not the engine has been started. When the start of the engine is determined, the microcomputer 32 ends the process here.
If it is not determined that the engine has started,
The microcomputer 32 proceeds to the process in step S22. In step S22, the microcomputer 32
It is determined whether or not a predetermined permission time T8 set in advance has elapsed. If the microcomputer 32 determines in step S22 that the predetermined time has not elapsed, the microcomputer 32
Performs the process of step S20 again. These steps S
The processes from 20 to S22 are repeatedly performed within a predetermined time until the engine is started. That is, the engine can be started while the processes from step S20 to step S22 are repeatedly performed. Here, the predetermined time is the permission time T8 shown in FIG. The length of the permission time T8 is equal to the length obtained by subtracting the processing time Δt from steps S17 and S19 to S21 from the reception monitoring time T7. That is, the permission time T8 is substantially equal to the transmission cycle T5. The permission time T8 is the time from when the ID codes match in step S19 to when the trigger signal is first generated. In the present embodiment, the permission time T
The length of 8 is set to 10 seconds. Therefore, the second transmission signal can be synchronized within the reception monitoring time T7 by the reception trigger signal.

In step S22, the microcomputer 32
Determines that the permission time T8 has elapsed, the microcomputer 3
2 performs the processing of step S17 again to determine whether or not the ID codes match. That is, by performing the processing in step S22, the ID is collated each time the permission time T8 elapses. Therefore, the portable device 12 is required until the engine is started. That is, the engine is started by operating the start switch 16 within the permitted time T8.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the effects (1) to (3) of the first embodiment. (4) After the door lock is unlocked, the microcomputer 32 compares the ID codes. Then, on condition that these ID codes match each other, the engine can be started during the permitted time T8. If the engine has not been started within the permission time T8, the microcomputer 32 returns to the process of step S17 and compares the ID codes again. Then, on condition that the ID codes match, the engine is ready to start again during the permitted time T8. Therefore, the second transmission signal can be transmitted intermittently at the timing when the permission time T8 ends. Therefore, the battery life of the portable device 12 can be made longer.

(5) In step S17, the receiving circuit 3
If No. 1 fails to receive the second transmission signal, step S
17 and step S18, the receiving device 13
This is repeated until a transmission signal is received. Therefore, the second
Even if the transmission signal is intermittently transmitted, the engine can be reliably set in the start standby state. Therefore, the operability of the vehicle remote control device 11 can be maintained.

The embodiment of the present invention may be modified as follows. -In the said 1st and 2nd embodiment, the output level of the 1st transmission signal and the 2nd transmission signal was always constant. However, in the first transmission signal and the second transmission signal, the output level of the ID code may be lower than the output levels of the header, the lock code, and the unlock code. With this configuration, the power consumption of the portable device 12 at the time of transmitting the ID code is reduced. Therefore, the battery life of the portable device 12 can be more reliably prolonged.

In the first and second embodiments, the ID code included in the first transmission signal and the ID code included in the second transmission signal are the same. However, the ID code included in the first transmission signal and the I code included in the second transmission signal
The D code may be different from the D code. With this configuration, the anti-theft property of the vehicle can be improved.

In the first and second embodiments, the ID code for the keyless entry device and the ID code for the smart ignition may be different.
With this configuration, the anti-theft property of the vehicle can be further improved.

In the first and second embodiments, the length A1 of the ID code is set longer than the length A2 of the lock code or the unlock code. However, the length A1 of the ID code may be set shorter than the length A2 of the lock code or the unlock code. Also, the length A1 of the ID code
May be set to the same length as the length A2 of the locking code or the unlocking code.

In the first and second embodiments, the second transmission signal is repeatedly transmitted with the header, the unlock code, and the ID code included. However, as shown in FIG. 6, at the time of transmitting the second transmission signal, only the ID code may be repeatedly transmitted from the second time.
According to this configuration, when the receiving device receives the second reception signal, the engine can be immediately started. Therefore, the response for making the engine startable can be improved.

In the first and second embodiments, the second transmission signal is repeated until the second transmission signal transmission time T2 ends in a state where the second transmission signal includes the header, the unlock code, and the ID code. Had been sent. However, as shown in FIG. 7, at the time of transmitting the second transmission signal, after transmitting the header and the unlock code, only the ID code is continuously transmitted until the second transmission signal transmission time T2 ends. Is also good.

In the first and second embodiments, the second transmission signal is intermittently transmitted from the portable device 12 at every time T3. However, the interval at which the second transmission signal is transmitted need not be constant.

The conditions for making the engine startable may be more complicated than in the above embodiment. For example,
At least one of turning on the brake switch, turning on the parking brake, and setting the shift position to the stop range may be added as a condition. With this configuration, the safety of the vehicle can be improved. It should be noted that the brake switch and the like can be grasped as detecting means for detecting that the owner is in the vehicle interior.

As conditions for enabling the engine to start,
Brake switch ON, parking brake O
At least one of the N state, the shift position in the stop range, and the like may be detected.

In the second embodiment, the open state of the door is detected by the door courtesy switch 17. Instead, a load sensor as a detecting means may be provided in the driver's seat, and the engine may be started when the load sensor is turned on and the ID codes match. The invention is not limited to this, and a wiper switch, a radio switch, or the like may be used as the detection means, and the engine may be started when the ID codes match. In this way, the engine can be started when the owner of the portable device 12 is in the vehicle compartment.

In the second embodiment, even if the ID codes match after the switch 21 is operated, the engine cannot be started unless the door is opened. However, the opening state of the door is not a condition, and the switch 21
If the ID codes match after the operation, the engine may be started together with the unlocking of the door lock.

In the second embodiment, step S
Steps S23 and S24 are omitted and step S24 is omitted.
If the open state of the door cannot be detected in step 16, the processing of the microcomputer 32 may be terminated directly.

Next, technical ideas other than the inventions described in the claims which can be understood from the above embodiment and other examples will be described below. (1) In Claims 1-4, the length of the ID code included in the first transmission signal and the second transmission signal is set to be longer than the length of the locking code or the unlocking code. Vehicle remote control device. Therefore, according to the technical idea (1), the door lock can be quickly unlocked.

(2) In the technical idea (1), the ID code included in the first transmission signal and the ID code included in the second transmission signal are different. A remote control device for a vehicle. Therefore, according to the technical idea (2), the anti-theft property of the vehicle can be improved.

(3) In the technical concept (1) or (2), the output level of the ID code is
A remote control device for a vehicle, wherein the output level is lower than the output level of the locking code or the unlocking code. Therefore, according to the technical idea (3), the battery life of the portable device can be more reliably prolonged.

(4) Claims 1 to 4, technical ideas (1) to
(3) The remote control device for a vehicle according to (3), wherein the receiving device includes a determination unit that determines whether the code is the lock code or the unlock code.

(5) In claim 4, the owner of the portable device is located in the vehicle compartment or the door is open after a switch operation for unlocking the door is performed. Until at least one of the ID codes is detected by the detection means provided in the vehicle, even if the ID codes match, the starting of the engine is prohibited. Remote control device.

(6) When an operation of unlocking a switch provided on the portable device is performed, a second transmission signal including an unlock code and an ID code for unlocking the door lock is transmitted, and the second transmission signal is transmitted. When the receiving device receives the transmission signal, the receiving device determines an unlock code included in the second transmission signal,
After determining that the switch operation is an operation of unlocking the door lock and unlocking the door lock, the ID code is compared with a preset ID code. A method for controlling a remote control device for a vehicle, wherein the engine is set in a state in which the engine can be started during the operation.

(7) One switch for locking and unlocking the door lock, a first transmission signal including a lock code and an ID code for locking the door lock, and a switch for unlocking the door lock. A portable device for a remote control device, wherein an unlock code and a second transmission signal including the ID code are alternately transmitted each time the switch is operated.

(8) One switching means for locking and unlocking the door lock is provided, and a first transmission signal for generating a first transmission signal including a lock code and an ID code for locking the door lock is provided.
A transmission signal generation unit and a second transmission signal generation unit for generating a second transmission signal including an unlock code and an ID code for unlocking the door lock are alternately operated each time the switching unit is operated. A portable device for a remote control device, wherein the portable device is operated in the following manner.

[0067]

As described above, according to the first aspect of the present invention, the battery life of the portable device can be extended.

According to the second aspect of the invention, the operability of the portable device can be improved. According to the third aspect of the invention, it is possible to improve the response for bringing the engine into a startable state.

According to the fourth aspect of the invention, the battery life of the portable device can be more reliably prolonged.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle remote control device according to the present invention.

FIG. 2 is an operation diagram showing an operation mode of the vehicle remote control device in the first embodiment in a time-series manner.

FIG. 3 is a time chart showing transmission signals in a time series.

FIG. 4 is an operation diagram showing an operation mode of the vehicle remote control device according to the second embodiment in a time-series manner.

FIG. 5 is a time chart showing transmission signals in a time series.

FIG. 6 is a time chart showing a transmission signal in another example in chronological order.

FIG. 7 is a time chart showing a transmission signal in another example in chronological order.

[Explanation of symbols]

11 remote control device for vehicle 12 portable device 13 receiving device 17 door courtesy switch as detecting means
21 ... Switch.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E05B 65/20 E05B 65/20 H04Q 9/00 301 H04Q 9/00 301B 9/14 9/14 J F-term (Reference) 2E250 AA21 BB08 BB36 BB66 DD06 EE03 FF24 FF36 HH01 JJ03 KK03 LL00 LL01 SS01 SS02 SS06 SS09 TT03 5K048 AA04 BA42 BA53 DB01 DC01 EA16 EB02 FA04 FA07 HA04 HA06

Claims (4)

[Claims] A portable device having one switch for locking and unlocking a door lock and transmitting a transmission signal including a predetermined ID code when the switch is operated, and receiving the transmission signal When the ID code is compared with a preset ID code, the door lock is locked or unlocked on condition that the ID codes match, and then the ID codes are compared again. A remote control device for a vehicle, comprising: a receiving device that, when the ID codes match, makes the engine startable, wherein the portable device includes a first code obtained by adding a lock code to the transmission signal.
A transmission signal and a second transmission signal obtained by adding an unlocking code different from the locking code to the transmission signal are alternately transmitted each time the switch is operated, and the second transmission signal is transmitted to the first transmission signal. A remote control device for a vehicle, wherein the transmission is performed for a longer period of time. 2. The remote control device according to claim 1, wherein the unlock code and the ID code are repeatedly transmitted within a transmission time of the second transmission signal. 3. The transmission system according to claim 1, wherein, within the transmission time of the second transmission signal, after the unlock code and the ID code are transmitted, the ID code is transmitted repeatedly. Vehicle remote control device. 4. The receiving apparatus according to claim 1, wherein at least one of the position of the owner of the portable device in the vehicle compartment and the opening of the door is detected by detecting means provided in the vehicle. Wherein the ID codes are compared again with each other, and a predetermined time from when the ID codes coincide with each other is set as a permission time, and the engine is allowed to be started during the permission time. Claim 3
The remote control device for a vehicle according to any one of claims 1 to 7.