JP2016199090A - Vehicular control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular control device configured to prevent theft prevention control function from being impaired due to a communication failure or the like caused by noise or the like.SOLUTION: An on-vehicle control device transmits an authentication-cord request signal to a portable machine when an engine is stopped. The portable machine, when receiving the authentication-cord request signals through a second receiving circuit, transmits a second authentication cord to the on-vehicle control device. The authentication-cord request signal is transmitted using frequencies belonging to a long wave range, and the transmission of the second authentication cord from the portable machine is performed using frequencies belonging to a range of frequencies higher than the frequencies belonging to the long wave range. When the second authentication cord matches the first authentication cord, the engine can be started, and the portable machine, after the second authentication cord matches the first authentication cord, transmits continuously the second authentication cord to the on-vehicle control device at predetermined time intervals.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle control device that is used in a vehicle such as a motorcycle and has an engine control function and an antitheft control function.

  In recent years, even in small motorcycles that are inexpensive specifications among motorcycles, vehicles equipped with an electronically controlled fuel injection system in an engine control device have become mainstream. The electronically controlled fuel injection system is based on engine information such as crank angle sensor, throttle opening sensor, intake pipe pressure sensor, temperature sensor, etc., and injectors that inject fuel and high voltage to the spark plug to ignite the air-fuel mixture Optimal control of the ignition coil to be output and the device that controls the amount of bypass air has great benefits such as cleaner exhaust gas, reduced fuel consumption, improved startability, and stable idling. Is expected to increase.

  On the other hand, the vehicle anti-theft device transmits the authentication code registered in the ignition key or the portable terminal to the authentication device attached to the vehicle body side, and the relationship with the authentication code registered in advance in the authentication device matches. The engine is allowed to start. In motorcycles, installation has started from high-end vehicles, and for security reasons, it is expected that the need for installation will increase even in cheaper vehicles in the future.

  The conventional vehicle antitheft device disclosed in Patent Document 1 performs wireless communication between a transceiver (electronic key) carried by a user and a control device mounted on an actual vehicle, and collates the ID. This is an electronic key system for a vehicle suitable for use in a motorcycle in which the engine is started or the like when it is a request from an authorized user. A feature of the conventional vehicle antitheft device disclosed in Patent Document 1 is that a warning can be output when the user drops the electronic key while the vehicle is stopped and running. In other words, the probability of losing the electronic key due to the user dropping the electronic key is minimized.

Japanese Patent No. 3913652

  However, a space for mounting an electronic control device is limited in a small two-wheeled vehicle. In the conventional vehicle antitheft device disclosed in Patent Document 1, an antitheft control device and an engine control are provided. Two control devices of the device must be mounted, and there are difficulties in mounting and layout. As a measure for avoiding this mountability problem, it is conceivable to provide the anti-theft control device and the engine control device in the same casing.

  In addition, since a small motorcycle has a low vehicle price, a device that is inexpensive in cost compared to a large motorcycle is required. From this point of view, the anti-theft control device and the engine control device are arranged in the same housing, and furthermore, the electronic circuit of the anti-theft control device and the engine control device is configured on the same board, and the power supply circuit and microcomputer are shared. Obviously, the more common parts, such as, the more advantageous the cost.

However, when the anti-theft control device and the engine control device are arranged in the same casing, there is a concern that each control device malfunctions due to electromagnetic noise generated by each control device. In particular,
Anti-theft control device to detect portable devices due to noise at ignition timing (when primary current is cut off) of ignition coil, which has the largest current / voltage change during driving, among actuators driven by engine control device LF (Low Frequency) signal transmitted to the portable device held by the user from being disturbed, there is a risk of communication failure. In the case of motorcycles, LF band signals are limited to the area of [(distance to the driver's seat) + (slight distance)] from the viewpoint of theft prevention and antenna cost. It is prone to communication failure due to noise.

  If the transmission code from the anti-theft control device to the portable device cannot be recognized by the portable device due to poor communication, the portable device will not reply naturally, so the anti-theft control device cannot recognize the presence of the portable device. There was a problem of warning that the user dropped the mobile device.

  The present invention has been made to solve the above-described problems in a conventional vehicle control device having an engine control function and an anti-theft control function, and prevents theft due to poor communication due to noise or the like. It is an object of the present invention to provide a vehicle control device that does not impair the control function.

The vehicle control device according to the present invention comprises:
A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
A portable device carried by the driver or passenger of the vehicle and having a second transmission circuit, a second reception circuit, a second storage circuit storing a second authentication code, and a second control unit. Machine,
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. Determining whether or not and confirming that the second authentication code matches the first authentication code, enabling the engine to start,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. ,
It is characterized by that.

According to the vehicle control device of the present invention, the in-vehicle control device is configured to transmit the authentication code request signal from the first transmission circuit to the portable device when the vehicle engine is stopped. When the second receiving circuit receives the authentication code request signal transmitted from the in-vehicle control device, the second in-vehicle control device stores the second authentication code stored in the second storage circuit. The first transmission circuit in the in-vehicle control device is configured to transmit an authentication code request signal using a frequency belonging to a long wave band, and the second transmission circuit in the portable device. The transmission circuit is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than the frequency belonging to the long wave band, and the first control unit in the in-vehicle control device includes: The above It is determined whether or not the second authentication code transmitted from the band machine matches the first authentication code stored in the first storage circuit, and the second authentication code is The engine can be started when it is confirmed that the first authentication code matches the first authentication code, and the portable device, after the in-vehicle control device confirms that the second authentication code matches the first authentication code. Since the second authentication code is continuously transmitted to the in-vehicle control device at a predetermined time interval, the influence of noise on the LF communication by cutting off the primary side current of the ignition coil is reduced. This is effective in that the buzzer sounds without darkness and the alarm is not displayed on the instrument panel.

It is a block diagram which shows the whole structure of the vehicle control apparatus by Embodiment 1 of this invention. It is a flowchart explaining operation | movement of the vehicle control apparatus by Embodiment 1 of this invention.

Embodiment 1 FIG.
1 is a configuration diagram showing the overall configuration of a vehicle control apparatus according to Embodiment 1 of the present invention. In FIG. In FIG. 1, an in-vehicle control device 1 in which an engine control function and an antitheft control function are housed in a single housing includes a power supply circuit 3, a first control unit 4, a first storage circuit 5, LF transmission circuit 6 as one transmission circuit, UHF reception circuit 7 as a first reception circuit, battery output voltage detection circuit 31, and a first interface circuit (hereinafter referred to as a first I / F) 32, a second interface circuit (hereinafter referred to as a second I / F) 33, a third interface circuit (hereinafter referred to as a third I / F) 34, and an ignition coil terminal voltage detection circuit 35. For example, a switch element 36 composed of a power transistor, a fourth interface circuit (hereinafter referred to as a fourth I / F) 37, and a fifth interface circuit (hereinafter referred to as a fifth I / F). 38) Provided.

  The power supply circuit 3 generates a power supply for the first control unit 4 and the like provided in the in-vehicle control device 1 based on the voltage supplied from the battery 2. The first control unit 4 is operated by the power supply generated by the power supply circuit 3. The LF transmission circuit 6 transmits an LF signal 21 that is a radio wave in the LF band (for example, 30 to 300 [KHz]) to the portable device 14. The UHF receiving circuit 7 receives a UHF signal 22 that is a radio wave in a UHF (Ultra High Frequency) band (for example, 300 to 3000 [MHz]) from the portable device 14.

  A specific first authentication code is stored in the first storage circuit. The battery output voltage detection circuit 31 detects the output voltage of the battery 2 and inputs it to the first control unit 4. A start switch 8 provided outside the in-vehicle control device 1 is connected to the first control unit 4 via the first I / F 32, and includes a vehicle state confirmation device including various sensors for confirming the vehicle state. 9 is connected to the first control unit 4 via the second I / F 33. The ignition coil terminal voltage detection circuit 35 detects the terminal voltage of the ignition coil 11 provided outside the in-vehicle control device 1 and inputs it to the control unit 4.

The warning device 10 provided outside the in-vehicle control device 1 is connected to the first control unit 4 via the third I / F 34, and when the fall of the portable device 14 is detected, the warning device 10 is provided to the driver. A warning sound is emitted to warn. The ignition coil 11 is connected to the first control unit 4 via a switch element 36 in order to control the engine. An injector 12 and a fuel pump 13 provided outside the in-vehicle control device 1 are connected to the control unit 4 via a fourth I / F 37 and a fifth I / F 38, respectively.

  In FIG. 1, the engine control function and the anti-theft control function are housed in a single casing and configured as the in-vehicle control device 1. There is no particular problem even if each substrate is provided, or the first control unit 4 is provided separately for the engine control function and the antitheft control function.

  The portable device 14 operates with the battery 18 as a power source, and includes an LF reception circuit 15 as a second reception circuit that performs wireless communication with the in-vehicle control device 1 and a UHF transmission circuit 16 as a second transmission circuit. Also, a second storage circuit 19 that stores a specific second authentication code, a time passage confirmation device 20 for managing the passage of time, an LF reception circuit 15, a UHF transmission circuit 16, and a time passage confirmation device 20 And a second control unit 17 for controlling. Note that the clock in the second control unit 17 may be used in place of the time elapse confirmation device 20.

  FIG. 2 is a flowchart for explaining the operation of the vehicle control apparatus according to Embodiment 1 of the present invention. In FIG. 2, it is assumed that the portable device 14 is sleeping before the vehicle is started. In step S1, the driver who has the portable device 14 switches the start switch 8 of the vehicle to which the vehicle-mounted control device 1 is attached from off to on.

  When the start switch 8 is turned on, the process proceeds to step S <b> 2, and the in-vehicle control device 1 wirelessly transmits an authentication code request signal from the LF transmission circuit 6 to the portable device 14 using the LF signal 21. The portable device 14 receives the LF signal 21 from the LF transmission circuit 6 of the in-vehicle control device 1 by the LF reception circuit 15, leaves the sleep state, and stores the second authentication code stored in the second storage circuit 19. Is transmitted from the UHF transmission circuit 16 to the in-vehicle control device 1 by the UHF signal 22. The in-vehicle control device 1 receives the second authentication code transmitted from the portable device 14 by the UHF receiving circuit 7 and then collates with the first authentication code stored in the first storage circuit 5. As a result of the collation, if these authentication codes match (Yes), the process proceeds to step S3. If the authentication codes do not match (No), the process returns to step S1. In addition, while returning to step S1, the vehicle-mounted control apparatus 1 may notify a driver | operator of the mismatch of an authentication code using the warning device 10. FIG.

  Since the engine has not been started up to step S3, relatively stable wireless communication can be performed between the in-vehicle control device 1 and the portable device 14 even with less noise and using LF band radio waves. Accordingly, the in-vehicle control device 1 can issue a command to shift to step S4 to the portable device 14 by wireless communication in step S3. In step S4, the portable device 14 periodically continues at predetermined time intervals (for example, 500 [ms]) in accordance with the command, and wirelessly transmits the second authentication code from the UHF transmission circuit 16 to the in-vehicle control device 1. Transition to a state where

  In step S2, the portable device 14 wirelessly transmits the second authentication code, the in-vehicle control device 1 compares the second authentication code with the first authentication code, and the authentication codes match. Then, the authentication code request signal is not transmitted again to the portable device 14. Therefore, even if the in-vehicle control device 1 does not give the instruction, the portable device 14 continues periodically to the in-vehicle control device 1 at the predetermined time interval (for example, 500 [ms]) after the predetermined time has elapsed. You may change to the state where the authentication code is wirelessly transmitted.

In step S4, since the authentication codes match in step S2, engine start is permitted, and the vehicle-mounted control device 1 controls the ignition coil 11, the injector 12, and the fuel pump 13 to start engine control. In the state of step S4, the engine is started and the vehicle is about to start running. For example, the portable device 14 is placed on the fuel tank or in the pocket of clothes, but from the half pocket. There is a possibility of falling or falling due to the behavior of the vehicle at the start of traveling. Further, there is a possibility that the portable device 14 is left in the garage and starts traveling. Immediately after the start of traveling, it is considered that there is a high possibility that the portable device 14 will be separated from the driver due to dropping or the like. Therefore, the transmission frequency of the UHF signal from the portable device 14 for confirming the presence of the portable device 14 is It is set higher. For example, the interval is 500 [ms].

  In step S5, the portable device 14 determines whether or not a predetermined time has elapsed after the authentication in step S2 by the time passage confirmation device 20. For example, if the predetermined time is set to 1 [minute], for example, if 1 [minute] or more has passed after the authentication (Yes), the process proceeds to step S6, and if it is less than 1 [minute] after authentication (No) ), The process proceeds to step S7.

  In step S6, the portable device 14 changes the UHF signal transmission cycle from 500 [ms] to, for example, 5 [s]. The reason for changing the transmission cycle is that the vehicle has started to move after the predetermined time 1 [minute] of step S5, and the time zone in which the portable device 14 is likely to be separated from the driver due to dropping or the like has passed. This is because the power consumption of the portable device 14 is suppressed. There is no problem even if the transmission cycle is further extended from 5 [s] to 10 [s] according to the elapsed time.

  In step S7, the in-vehicle control device 1 receives the UHF signal 22 transmitted from the portable device 14, and determines whether the authentication codes match. By placing the transmission cycle information on the UHF signal, the transmission cycle interval can be shared by the in-vehicle control device 1 and the portable device 14. If the above-described UHF signal is received by the in-vehicle control device 1 and the authentication codes match (Yes), the process proceeds to step S8, and if they do not match (No), the process proceeds to step S10.

  In step S8, the in-vehicle control device 1 determines whether or not the engine is stopped. Since the vehicle-mounted control apparatus 1 is controlling the ignition coil 11 and the injector 12, if it has stopped, it will judge that the engine has stopped. If the in-vehicle control device 1 determines that the engine is stopped (Yes), it is necessary to stop the UHF signal that is continuously transmitted from the portable device 14, and thus the process proceeds to step S9. If the engine is not stopped as a result of the determination in step S8 (No), the operation returns to step S5 in order to continue the operation of confirming the presence of the portable device 14.

  When the engine stop is confirmed in step S8, the process proceeds to step S9, an engine stop signal indicating that the engine is stopped is put on the LF signal transmitted from the in-vehicle control device 1, and the engine is stopped on the portable device 14. Notice. In step S9, since the engine has already stopped, there is no possibility of LF signal transmission failure due to noise of the cut-off current of the ignition coil 11, so there is a low possibility that transmission of the LF signal will fail. When the LF reception circuit 15 in the portable device 14 receives the engine stop signal, the transmission of the UHF signal from the UHF transmission circuit 16 of the portable device 14 is stopped in order to suppress the consumption of the battery 18 of the portable device 14.

  On the other hand, as a result of the determination in step 7, if the authentication codes do not match and the process proceeds to step S10, the in-vehicle control device 1 counts the number of times the UHF signal has failed to be received, that is, the number of mismatches of the authentication codes. . For example, if reception of the UHF signal fails three times in succession (Yes), it is determined that the distance between the in-vehicle control device 1 and the portable device 14 is more than the UHF communication distance and the portable device 14 has fallen, and the process proceeds to step S11. The driver is notified using the warning device 10. If the number of UHF communication failures, that is, the number of authentication code mismatches is within 2 consecutive times (No), the process returns to step S5. If the number of UHF communication failures, that is, the number of authentication code mismatches is within two, there is a possibility that the communication has failed due to other factors even though the portable device 14 has not actually dropped. Because there is.

  Compared to a configuration in which the engine control function and the anti-theft control function are separated from each other by housing the engine control function and the anti-theft control function in one case, the switch element 35 that cuts off the current and the LF that transmits the LF signal. Since the transmission circuit 6 is close, the influence of noise on the LF communication by cutting off the primary side current of the ignition coil is increased. In the case of a two-wheeled vehicle, LF communication is limited to the area of [(distance to the driver's seat) + (slight distance)] from the viewpoint of anti-theft performance, due to noise. If the mobile device 14 detects noise when it is detected, the mobile device 14 determines that it is not detected, and a buzzer sounds or an alarm is displayed on the instrument panel.

  Therefore, as in the vehicle control apparatus according to Embodiment 1 of the present invention, portable device detection is performed only by the UHF signal of the portable device 14 designed to be able to communicate with several tens [meters] for remote operation. By determining, it is possible to reduce the influence of noise on the portable device detection by blocking the primary side current of the ignition coil 11, and it is possible to prevent a buzzer from ringing and an alarm from being displayed on the instrument panel.

  In addition, according to the vehicle control device according to the first embodiment of the present invention, the engine control function and the anti-theft control function are housed in one housing, and the communication line between the devices can be eliminated. Thus, the restrictions on the layout of the in-vehicle control device 1 can be reduced. Furthermore, the cost of the electronic component can be reduced by unifying the substrate and the control unit.

  The transmission frequency of the second authentication code is high in the time zone immediately after the end of authentication code authentication, which is likely to cause the mobile device 14 to be left behind or the mobile device 14 to fall when the vehicle starts. If the predetermined time, for example, 1 [minute] elapses, the service life of the battery 18 of the portable device 14 can be extended by decreasing the frequency. Further, the life of the battery 18 of the portable device 14 can be further extended by further reducing the transmission frequency of the second authentication code every time a predetermined time elapses.

  When realizing the engine control function and the anti-theft control function on one board, the switch element 36, the LF transmitter circuit 6 and the UHF receiver circuit 7 connected to the ignition coil 11 are arranged as far as possible in the board. Thus, it goes without saying that the influence of mutual noise can be reduced.

  The portable device 14 is in a sleep (low power consumption) state before starting the vehicle. However, the portable device 14 is activated when the authentication code reception request signal is received from the in-vehicle control device 1, thereby suppressing power consumption. The life of the battery 18 can be extended.

  When the portable device 14 is detected, a long communication distance is not required as in the answerback in the keyless entry system. Therefore, an area that can sufficiently surround the communication distance of the UHF communication, for example, a radius. However, the length of the battery 18 of the portable device 14 is reduced by limiting the amount of power used by the portable device 14 for UHF communication to the inside of the circular region of the vehicle length (about 2 [meter]). Life expectancy is possible.

  The engine stop signal is transmitted from the in-vehicle control device 1 to the portable device 14 when the engine is stopped, but the fact that the engine stop signal has been received from the portable device 14 may be transmitted to the in-vehicle control device 1. good. In this case, if the portable device 14 cannot correctly receive the engine stop signal, a reply that the engine stop signal has been received will not be returned, so the in-vehicle controller 1 can transmit the engine stop signal again. .

The vehicle control apparatus according to the first embodiment of the present invention described above embodies the following invention. However, the first embodiment may be appropriately modified or omitted within the scope of the invention. Is possible.

(1) A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle; An in-vehicle control device having a first storage circuit storing one authentication code;
A portable device carried by the driver or passenger of the vehicle and having a second transmission circuit, a second reception circuit, a second storage circuit storing a second authentication code, and a second control unit. Machine,
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. Determining whether or not and confirming that the second authentication code matches the first authentication code, enabling the engine to start,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. ,
A control apparatus for a vehicle.
According to the present invention, it is possible to reduce the influence of noise on LF communication by blocking the primary side current of the ignition coil, and it is possible to prevent a buzzer from ringing and a warning from being displayed on the instrument panel. There is an effect.

(2) At least the first transmission circuit, the first reception circuit, the first storage circuit, and the first control unit are mounted on the same substrate.
The vehicle control device according to (1) above, wherein
According to this invention, a vehicle-mounted control apparatus can be reduced in size.

(3) The first control unit in the in-vehicle control device includes at least the first transmission circuit, the first reception circuit, the first storage circuit, and an input circuit for controlling the engine; Has a function to control the output circuit,
The vehicle control device according to (1) or (2), characterized in that:
According to this invention, a vehicle-mounted control apparatus can be reduced in size.

(4) The portable device transmits the second authentication code after a predetermined time has elapsed after the in-vehicle control device has confirmed that the second authentication code matches the first authentication code. Increase the time interval
The vehicle control device according to any one of (1) to (3) above, wherein
According to the present invention, the transmission frequency of the UHF signal from the portable device is set to be high immediately after the end of authentication, which is likely to cause the portable device to be misplaced or dropped when starting, and thereafter the frequency is increased with time. This can reduce the battery consumption of the portable device.

(5) After the predetermined time has elapsed after the in-vehicle control device confirms the match between the second authentication code and the first authentication code, the portable device wirelessly transmits the second authentication code. Increase the time interval for transmission over time,
The vehicle control device according to any one of (1) to (4), characterized in that:
According to the present invention, the transmission frequency of the UHF signal from the portable device is set to be high immediately after the end of authentication, which is likely to cause the portable device to be misplaced or dropped when starting, and thereafter the frequency is increased with time. This can reduce the battery consumption of the portable device.

(6) The portable device is in a sleep state before the engine of the vehicle is started, and when the authentication code request signal transmitted from the in-vehicle control device is received, the portable device is activated, and the second device Transmitting an authentication code to the in-vehicle control device;
The vehicle control device according to any one of (1) to (5) above, wherein
According to this invention, consumption of the battery of the portable device can be suppressed.

(7) When the engine of the vehicle stops, the in-vehicle control device transmits an authentication code stop request signal to the portable device, and when the portable device receives the transmitted authentication code request signal, 2 Stop sending the authentication code,
The vehicle control device according to any one of (1) to (6) above, wherein:
According to this invention, consumption of the battery of the portable device can be suppressed.

  The present invention is applicable not only to motorcycles but also to motorbikes, general automobiles, riding agricultural machines, riding construction machines, or ships using power.

DESCRIPTION OF SYMBOLS 1 Vehicle-mounted control apparatus, 2 Battery, 3 Power supply circuit, 4 1st control part, 5 1st memory circuit, 6 LF transmission circuit, 7 UHF reception circuit, 31 Battery output voltage detection circuit, 32 1st interface circuit, 33 second interface circuit, 34 third interface circuit, 35 ignition coil terminal voltage detection circuit, 36 switch element, 37 fourth interface circuit, 38 fifth interface circuit, 8 start switch, 9 vehicle condition confirmation device, 10 Warning device, 11 Ignition coil, 12 Injector, 13
Fuel pump, 14 portable device, 15 LF reception circuit, 16 UHF transmission circuit, 17 second control unit, 18 portable device battery, 19 second storage circuit, 20 time elapsed confirmation device.

The vehicle control device according to the present invention comprises:
A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. After the predetermined time has elapsed after the in-vehicle control device confirms that the second authentication code matches the first authentication code, the second authentication code is transmitted. Configured to increase the time interval,
It is characterized by that.
The vehicle control apparatus according to the present invention is
A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. After the predetermined time has elapsed after the in-vehicle control device confirms that the second authentication code matches the first authentication code, the second authentication code is wirelessly transmitted. The time interval to be increased over time,
It is characterized by that.
Furthermore, the vehicle control device according to the present invention provides :
A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. And is in a sleep state before starting the engine of the vehicle, and the portable device is activated when the authentication code request signal transmitted by the in-vehicle control device is received, and the second authentication code Is configured to transmit to the in-vehicle control device,
It is characterized by that.
In addition, the vehicle control device according to the present invention includes:
A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. And when the engine of the vehicle stops, the in-vehicle control device transmits an authentication code stop request signal to the portable device, and the portable device receives the transmitted authentication code request signal. , Configured to stop transmission of the second authentication code,
It is characterized by

(1) A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle; An in-vehicle control device having a first storage circuit storing one authentication code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. After the predetermined time has elapsed after the in-vehicle control device confirms that the second authentication code matches the first authentication code, the second authentication code is transmitted. Configured to increase the time interval,
A control apparatus for a vehicle.
According to the present invention, it is possible to reduce the influence of noise on LF communication by blocking the primary side current of the ignition coil, and it is possible to prevent a buzzer from ringing and a warning from being displayed on the instrument panel. There is an effect. Further, according to the present invention, the transmission frequency of the UHF signal from the portable device is set to a high frequency immediately after the end of authentication, which is considered to be likely to cause the portable device to be misplaced or dropped at the time of departure. In addition, the frequency can be reduced, and the battery consumption of the portable device can be reduced.

(2) a first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an antitheft control function for the vehicle; An in-vehicle control device having a first storage circuit storing one authentication code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. After the predetermined time has elapsed after the in-vehicle control device confirms that the second authentication code matches the first authentication code, the second authentication code is wirelessly transmitted. The time interval to be increased over time,
A control apparatus for a vehicle.
According to the present invention, the transmission frequency of the UHF signal from the portable device is set to be high immediately after the end of authentication, which is likely to cause the portable device to be misplaced or dropped when starting, and thereafter the frequency is increased with time. This can reduce the battery consumption of the portable device.

(3) a first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an antitheft control function for the vehicle; An in-vehicle control device having a first storage circuit storing one authentication code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. And is in a sleep state before starting the engine of the vehicle, and the portable device is activated when the authentication code request signal transmitted by the in-vehicle control device is received, and the second authentication code Is configured to transmit to the in-vehicle control device,
A control apparatus for a vehicle.
According to this invention, consumption of the battery of the portable device can be suppressed.

(4) a first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an antitheft control function for the vehicle; An in-vehicle control device having a first storage circuit storing one authentication code;
Carried by a driver or passenger of the vehicle, a second transmission circuit, a second reception circuit,
A portable device having a second storage circuit storing a second authentication code and a second control unit;
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. It is configured to allow the engine to be started when it is determined whether or not the second authentication code matches the first authentication code,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. And when the engine of the vehicle stops, the in-vehicle control device transmits an authentication code stop request signal to the portable device, and the portable device receives the transmitted authentication code request signal. , Configured to stop transmission of the second authentication code,
A control apparatus for a vehicle.
According to this invention, consumption of the battery of the portable device can be suppressed.

(5) At least the first transmission circuit, the first reception circuit, the first storage circuit, and the first control unit are mounted on the same substrate.
The vehicle control device according to any one of (1) to (4), characterized in that:
After the predetermined time has elapsed after the in-vehicle control device confirms the match between the second authentication code and the first authentication code, the portable device wirelessly transmits the second authentication code. Increase the interval over time,
The vehicle control device according to any one of (1) to (4), characterized in that:
According to this invention, a vehicle-mounted control apparatus can be reduced in size.

(6) The first control unit in the in-vehicle control device includes at least the first transmission circuit, the first reception circuit, the first storage circuit, an input circuit for controlling the engine, and Has a function to control the output circuit,
The vehicle control device according to any one of claims 1 to 5, wherein
According to this invention, a vehicle-mounted control apparatus can be reduced in size.

Claims (7)

A first control unit mounted on a vehicle and having a first transmission circuit, a first reception circuit, an engine control function for controlling the engine of the vehicle, and an anti-theft control function for the vehicle, and a first authentication A vehicle-mounted control device having a first storage circuit storing a code;
A portable device carried by the driver or passenger of the vehicle and having a second transmission circuit, a second reception circuit, a second storage circuit storing a second authentication code, and a second control unit. Machine,
A vehicle control device comprising:
The in-vehicle control device is configured to transmit an authentication code request signal from the first transmission circuit to the portable device when the engine of the vehicle is stopped,
The portable device receives the second authentication code stored in the second storage circuit when the authentication code request signal transmitted from the in-vehicle control device is received by the second reception circuit. The transmission circuit is configured to transmit to the in-vehicle control device,
The first transmission circuit in the in-vehicle control device is configured to transmit the authentication code request signal using a frequency belonging to a long wave band,
The second transmission circuit in the portable device is configured to transmit the second authentication code using a frequency belonging to a frequency band higher than a frequency belonging to the long wave band,
The first control unit in the in-vehicle controller matches the first authentication code stored in the first storage circuit with the second authentication code transmitted from the portable device. Determining whether or not and confirming that the second authentication code matches the first authentication code, enabling the engine to start,
The portable device continuously transmits the second authentication code to the in-vehicle control device at a predetermined time interval after the in-vehicle control device confirms that the second authentication code matches the first authentication code. ,
A control apparatus for a vehicle. At least the first transmission circuit, the first reception circuit, the first storage circuit, and the first control unit are mounted on the same substrate.
The vehicle control device according to claim 1. The first control unit in the in-vehicle control device includes at least the first transmission circuit, the first reception circuit, the first storage circuit, and an input circuit and an output circuit for controlling the engine. It has a function to control,
The vehicle control device according to claim 1, wherein the control device is a vehicle control device. A time interval at which the portable device transmits the second authentication code after a predetermined time has elapsed after the in-vehicle control device confirms the match between the second authentication code and the first authentication code. To increase the
The vehicle control device according to claim 1, wherein the vehicle control device is a vehicle control device. After the predetermined time has elapsed after the in-vehicle control device confirms the match between the second authentication code and the first authentication code, the portable device wirelessly transmits the second authentication code. Increase the interval over time,
The vehicle control device according to claim 1, wherein the vehicle control device is a vehicle control device. The portable device is in a sleep state before the start of the engine of the vehicle, and the portable device is activated when the authentication code request signal transmitted from the in-vehicle control device is received, and the second authentication code is received. Transmit to the in-vehicle control device,
The vehicle control device according to any one of claims 1 to 5, wherein When the vehicle engine stops, the in-vehicle control device transmits an authentication code stop request signal to the portable device, and when the portable device receives the transmitted authentication code request signal, the second authentication code. Stop sending
The vehicle control device according to claim 1, wherein the vehicle control device is a vehicle control device.

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