JP2007239589A - Engine starting device and engine starting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engine starting device and an engine starting method enabling a reduction in a starting time required from the start of an operating means for starting an engine to the start of the engine. <P>SOLUTION: A handsfree system allowing a door lock to be locked and unlocked and the engine to be started without actually using a vehicle key is mounted on a vehicle. When the push switch of the handsfree system is depressed with a shift lever set at the parking position and a brake pedal depressed, the handsfree system starts the engine. A multiple engine collation is performed for mutually checking an ECU related to the handsfree system and a system check is performed for self-diagnosing the ECU handling critical safety parts. The multiple engine collation and the system check are performed temporally parallel with each other for combined processing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an engine starting device and an engine starting method for a vehicle such as an automobile.

  In recent years, vehicles equipped with a one-push engine start system have become widespread so that the engine can be started with a simple operation in order to improve the convenience of operation when starting the engine. This type of one-push engine start system is disclosed in, for example, Patent Document 1 and Patent Document 2. This one-push engine start system is equipped with a push switch for starting the engine in the vicinity of the steering wheel, and when the shift lever is in the parking position on the premise that ID verification is established between the portable device and the vehicle. When the push switch is pressed while the brake pedal is depressed, the engine is started.

  A procedure from when the push switch is pressed to when the engine starts will be described with reference to FIG. This type of vehicle is equipped with a hands-free system for collating ID codes with portable devices. When the push switch is pressed, the result of ID verification (in-vehicle verification) performed by the hands-free system when the driver gets on is confirmed. Here, when the ID collation result does not match the ID, it is determined that the portable device is not at the driver's hand, and the engine start is not permitted.

  On the other hand, when the ID collation result is ID coincidence, multi-institution collation is performed subsequently. This multi-engine verification is a mutual check for confirming pairing of ECUs (for example, verification ECU, steering lock ECU, engine ECU, etc.) related to the hands-free system, and is implemented as a countermeasure against theft by replacing the ECU. The check ID used in this mutual check is a code number different from the ID code used at the time of ID collation between the portable device and the vehicle, and is registered in each ECU at the time of manufacture at the factory. Here, when the multi-engine verification is not established, the engine start is not permitted.

On the other hand, when the multi-institution verification is established, the steering lock that is in the locked state is released. When the steering lock is released, the ACC relay, IG relay, and starter relay are turned on. As a result, the starter is started and the engine is started.
JP 2005-248859 A JP 2005-125895 A

  By the way, it is preferable that the startup time required from when the push switch is pressed to when the engine is actually started to be as short as possible in consideration of securing real-time performance at the time of starting the engine and preventing a feeling of strangeness of operation. Therefore, it is necessary to shorten the startup time required from when the push switch is pressed to when the engine is actually started, as much as possible as compared with the current situation.

  An object of the present invention is to provide an engine starter and an engine instruction method capable of shortening a start time required for starting an engine after operating the engine start operating means.

  In order to solve the above problems, in the present invention, when the engine starting operation means is operated to start the engine, the identification code received from the electronic key coincides with the vehicle identification code, and the identification verification is established. In the engine starting device that performs multi-institution verification as a mutual check of the registration code of the control IC related to the identification verification on the condition that the control IC other than the multi-institution verification system performs a system check as a self-diagnosis function, The gist is to superimpose the multi-institution verification process and the system check process at least partially.

  According to this configuration, when the engine starting operation means is operated to start the engine, the multi-engine verification process and the system check process are performed simultaneously in at least a part of the time zone. Accordingly, it is possible to effectively use the time until the engine is actually started after the operation means is operated to start the engine, and it is possible to shorten the start-up time required until the engine is started after the operation means is operated to start the engine. It becomes possible.

  In the present invention, when the engine starting operation means is operated to start the engine, the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In an engine starter in which multi-institution verification is performed as a mutual check of control IC registration codes and a control IC other than the multi-institution verification system performs system check as a self-diagnosis function, The gist is to superimpose at least a part of a series of processes leading to multi-institution verification and the system check process.

  According to this configuration, when the engine starting operation means is operated to start the engine, a series of processing from confirmation of identification verification to multi-institution verification and system check processing are performed simultaneously in at least a part of the time zone. Will be done. Accordingly, it is possible to effectively use the time until the engine is actually started after the operation means is operated to start the engine, and it is possible to shorten the start-up time required until the engine is started after the operation means is operated to start the engine. It becomes possible.

  In the present invention, when the engine starting operation means is operated to start the engine, the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In the engine starting method in which multi-institution verification is performed as a mutual check of the registration code of the control IC, and other control ICs other than the multi-institution verification system perform system check as a self-diagnosis function, The gist is to superimpose at least part of the system check processing.

  In the present invention, when the engine starting operation means is operated to start the engine, the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In an engine starting method in which multi-institution verification is performed as a mutual check of control IC registration codes, and a control check other than the multi-institution verification system performs a system check as a self-diagnosis function, The gist is to superimpose at least a part of a series of processes leading to multi-institution verification and the system check process.

  According to the present invention, it is possible to shorten the startup time required for starting the engine after operating the engine starting operating means.

(First embodiment)
Hereinafter, a first embodiment of an engine starting device and an engine starting method embodying the present invention will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the vehicle 1 is equipped with a hands-free system 2 that can perform door locking / unlocking and engine starting without actually operating a vehicle key. The hands-free system 2 transmits a request signal Sreq from the vehicle 1, and when the portable device 3 receives the request signal Sreq, the portable device 3 responds to the ID signal Sid with an ID code (identification code). Is returned to the vehicle 1, and when the ID code of the portable device 3 matches the ID code of the vehicle 1, door locking / unlocking and engine starting are permitted. The portable device 3 corresponds to an electronic key.

  The hands-free system 2 will be described below. The vehicle 1 is provided with a smart ECU (an ECU: electronic control unit including an immobilizer function) 4 that performs ID verification with a portable device 3 used as a vehicle key. ing. Connected to the smart ECU 4 are an external LF transmitter 5 capable of transmitting an LF band signal outside the vehicle, and an in-vehicle LF transmitter 6 capable of transmitting an LF band signal inside the vehicle. A plurality of outside LF transmitters 5 are installed outside the vehicle such as each side door or luggage door of the vehicle 1. A plurality of in-vehicle LF transmitters 6 are installed, for example, under the floor in the vehicle.

The smart ECU 4 is connected to an RF receiver 7 capable of receiving an RF band signal. The RF receiver 7 is embedded in, for example, a rearview mirror in the vehicle.
The smart ECU 4 is connected to, for example, a touch sensor 8 embedded in a vehicle handle knob or the like. The touch sensor 8 is a sensor that detects an operation of touching the handle knob when the operator releases the locked door lock. For example, a lock button 9 provided on a handle knob is connected to the smart ECU 4. The lock button 9 is a button that is pushed when the operator locks the unlocked door lock.

  The smart ECU 4 is connected to a door ECU 10 that controls locking and unlocking of the door lock through a bus 11. The door ECU 10 is connected to a door lock motor 12 serving as a drive source when the door lock is locked and unlocked.

  When the vehicle 1 is in a parked state (engine stop and door lock locked state), the smart ECU 4 intermittently transmits a request signal Sreq in the LF band from the outside LF transmitter 5 to form a communication area around the door. When there are a plurality of outside LF transmitters 5, the outside LF transmitter 5 sequentially transmits the request signal Sreq one by one and repeats this operation. When the portable device 3 enters the communication area and receives the request signal Sreq, the portable device 3 responds to the request signal Sreq and returns an ID signal Sid carrying its own ID code as an RF band signal. When the smart ECU 4 receives the request signal Sreq via the RF receiver 7, the smart ECU 4 compares the ID code registered in the self ECU 4 with the ID code of the portable device 3 and performs ID verification (external vehicle verification). The smart ECU 4 activates the standby touch sensor 8 when the vehicle outside verification is established.

  The smart ECU 4 outputs a door lock release request signal to the door ECU 10 when the touch sensor 8 detects a touch operation on the outside handle knob while the outside vehicle verification is established. Upon receiving the door lock release request signal, the door ECU 10 rotates the door lock motor 12 to one side to release the locked door lock.

  Also assume that the operating engine is stopped and the driver gets off. When the vehicle 1 is in a stopped state (engine stop and door unlock state), the smart ECU 4 detects that the lock button 9 has been pressed, and detects that the portable device 3 is left behind in the vehicle. 6 transmits a request signal Sreq to form a communication area in the vehicle. At this time, the smart ECU 4 recognizes that the portable device 3 is not misplaced in the vehicle unless the ID signal Sid is received by the RF receiver 7 and the ID verification (in-vehicle verification) in the vehicle is not established.

  The smart ECU 4 recognizing that the portable device 3 has not been left in the vehicle causes the request signal Sreq to be transmitted from the LF transmitter 5 outside the vehicle. When there are a plurality of outside LF transmitters 5, the outside LF transmitters 5 send request signals Sreq one by one in order. When the smart ECU 4 receives the request signal Sreq and recognizes that collation outside the vehicle is established in the ID code returned from the portable device 3, the smart ECU 4 outputs a door lock locking request signal to the door ECU 10. Upon receiving the door lock locking request signal, the door ECU 10 rotates the door lock motor 12 to the other side to lock the door lock in the released state.

  The smart ECU 4 is connected to a key slot 13 disposed near the steering wheel in the vehicle. The key slot 13 is a part into which the portable device 3 is inserted when the engine is started. For example, a half-insertion detection switch for detecting that the portable device 3 is in a half-inserted state, and a state in which the portable device 3 is fully inserted are And a full insertion detection switch for detecting the occurrence of failure. The smart ECU 4 is connected to a coil antenna 14 for immobilizer communication performed with the portable device 3 when the portable device 3 is inserted into the key slot 13.

  The smart ECU 4 is connected to a power supply ECU 15 that manages the power supply of the in-vehicle electrical components. The power supply ECU 15 is connected to a push switch 16 that is operated when operating the on-vehicle accessory or the engine. The push switch 16 is a push operation type switch, and when the shift lever is in the parking position and is depressed with the brake pedal depressed, the engine 17 is started. Similarly, an ACC relay 18 connected to the in-vehicle accessory, an IG relay 19 connected to the engine system, and a starter relay 20 connected to a starter motor (not shown) are connected to the power supply ECU 15. Note that the push switch 16 corresponds to an operation unit.

  When the shift lever is in the parking position, if only the push switch 16 is depressed without stepping on the brake pedal, the power position is repeatedly switched in the order of power off, ACC, and IG on. For example, when the power position is in the power off state, if the push switch 16 is pressed once without pressing the brake pedal, the ACC relay 18 is turned on. Subsequently, if the push switch 16 is pressed once, the IG relay 19 is turned on. When the push switch 16 is pressed once from this state, all the relays 18 to 20 are turned off again, and the power supply position is turned off.

  A steering lock ECU 21 that controls locking and unlocking of the steering lock and an engine ECU 22 that performs ignition control and fuel injection control of the engine 17 are connected to the smart ECU 4 through the bus 11. A steering lock motor 23 is connected to the steering lock ECU 21 as a driving source when the steering lock is locked and unlocked. The smart ECU 4, the power supply ECU 15, the steering lock ECU 21 and the engine ECU 22 constitute a control IC (Integrated Circuit).

  The bus 11 is connected to an airbag ECU 24 that controls an on-board airbag. The airbag ECU 24 drives the airbag inflator 25 to protect the driver and the occupant when a large vibration in an accident or the like is detected. This type of airbag ECU 24 and an ECU that handles important security parts perform a system check at startup. This system check is a self-diagnosis function (diagnostic) performed by an ECU that handles important safety parts other than the ECU related to the hands-free system 2, and is executed when the ECU is started. This is a function to self-diagnose whether or not it works normally. The airbag ECU 24 constitutes another control IC.

  The bus 11 is also subjected to a process for confirming whether each ECU (smart ECU 4, power supply ECU 15, steering lock ECU 21, engine ECU 22, etc.) related to the hands-free system 2 is authorized, so-called multi-engine verification. An ID code box 26 to be used is connected. In these ECUs 4, 15, 21, and 22, multi-institution verification registration codes are individually registered. This registration code is registered in the ECU at the time of manufacture at the factory, and is a code number different from the ID code used at the time of ID collation. In the ID code box 26, registration codes having the same code numbers as those of the ECUs 4, 15, 21, and 22 are collectively registered. The registration code registered in the ID code box 26 is also registered in advance in the ID code box 26 at the time of manufacture at the factory.

  Multi-institution verification is verification in which each of the ECUs 4, 15, 21, 22 and the ID code box 26 exchanges registration codes by encrypted communication and performs mutual check of registered codes. When it is not established, engine start is not permitted. In the encrypted communication used in the multi-institution verification, keys used for data encryption and decryption are different for each of the ECUs 4, 15, 21, and 22. As the encryption method, for example, a common key encryption method or a public key encryption method is used. A conversion method, a hash function, or the like is used.

Next, the operation when the push switch 16 is operated to start the engine 17 will be described with reference to FIG.
When the smart ECU 4 detects that the door has been opened from, for example, a courtesy switch or the like after the vehicle exterior verification is established and the door lock is released, the smart ECU 4 recognizes that the driver gets on the vehicle, and receives the request signal Sreq from the in-vehicle LF transmitter 6. To form a communication area in the car. When the smart ECU 4 receives the ID signal Sid returned from the portable device 3 entering the communication area by the RF receiver 7, the smart ECU 4 compares the ID code registered in the mobile device 3 with the ID code of the portable device 3 to check the vehicle interior. Do.

  Subsequently, the driver inserts the portable device 3 into the key slot 13, but when the portable device 3 is in a half-inserted state, the smart ECU 4 performs immobilizer verification with the portable device 3. The smart ECU 4 compares whether or not the transponder code of the tag in the portable device 3 matches the transponder code registered in itself, and if these codes match, it determines that immobilizer verification has been established. When the in-vehicle collation and the immobilizer collation are established, the smart ECU 4 sets an in-vehicle collation establishment flag in the internal memory and recognizes that the in-vehicle collation is established. When the portable device 3 is further pushed from the half-inserted state and this is fully inserted, the power supply ECU 15 is activated.

  When the driver who gets on the shift lever is in the parking position and depresses the push switch 16 while depressing the brake pedal, the power supply ECU 15 detecting this operation confirms the smart ECU 4 with the in-vehicle collation result. Upon receiving this request, the smart ECU 4 recognizes that the in-vehicle collation has been established if the in-vehicle collation establishment flag is set, and outputs a request for starting multi-institution collation to the ID code box 26 as well as the air handling the important safety parts. A request for starting the system check is output to the back ECU 24, and the in-vehicle collation establishment flag is lowered. On the other hand, if the in-vehicle verification is not established, the in-vehicle verification establishment flag is not set, and the engine 17 is not started.

  The ID code box 26 that has received the request for starting multi-institution verification performs multi-institution verification as a pairing confirmation for each ECU 4, 15, 21, 22, etc. As the multi-institution verification, first, the ID code box 26 performs encrypted communication with the smart ECU 4, the ID code box 26 outputs a registration code to the smart ECU 4, and also inputs a registration code from the smart ECU 4, and the ID code box 26 and the smart ECU 4 collate the registration codes. If the registration codes match in both the ID code box 26 and the smart ECU 4, it is determined that the smart ECU 4 forms a pair.

  The power supply ECU 15, the steering lock ECU 21, and the engine ECU 22 are also checked for each other as in the case of the smart ECU 4. When these mutual checks are completed in all the ECUs 4, 15, 21, and 22, it is determined that multi-institution verification has been established, and the ECUs 4, 15, 21, and 22 enter the next operation standby state. Therefore, each ECU 4, 15, 21, 22 is in a state where it can move to the next operation.

  The airbag ECU 24 inputs a system check start request from the smart ECU 4 at the same time as the ID code box 26 inputs a request for the start of multi-engine verification from the smart ECU 4. Check. That is, the multi-institution verification and the system check are overlapped and processed in parallel in time. Receiving the request for starting the system check, the airbag ECU 24 performs a system check and performs a self-diagnosis as confirmation of whether or not it operates normally. When the system check is normally completed, the airbag ECU 24 outputs a notification that the system check is complete to the smart ECU 4.

  Upon receiving the completion of the system check, the smart ECU 4 outputs a steering lock power supply request to the power supply ECU 15 and outputs a steering lock request signal to the steering lock ECU 21 on the condition that multi-institution verification is established. The steering lock ECU 21 that has received the steering lock request signal enters the unlock standby state. The power supply ECU 15 that has received the steering lock power supply request starts power supply to the steering lock motor 23. At this time, when the steering lock ECU 21 recognizes that the power supply to the steering lock motor 23 is turned on in the unlock standby state, the steering lock ECU 21 starts energizing the steering lock motor 23 and releases the steering lock. When the steering lock ECU 21 detects that the steering lock has been released, the steering lock ECU 21 outputs a steering lock release completion signal to the smart ECU 4.

  The smart ECU 4 that has received the steering lock release completion signal releases the immobilizer lock based on the immobilizer collation and outputs an immobilizer lock release completion signal to the power supply ECU 15. The power supply ECU 15 that has received the immobil lock release completion signal stops power supply to the steering lock motor 23. The ACC relay 18, the IG relay 19 and the ST relay 20 are turned on.

  The power supply ECU 15 that has turned on each relay outputs an activation signal to the engine ECU 22. The engine ECU 22 that has received the activation signal performs activation permission communication with the smart ECU 4, outputs an encryption code to the smart ECU 4, and performs pairing confirmation with the smart ECU 4. When the engine ECU 22 receives the notification that the ID verification has been established from the smart ECU 4 when the encryption code matches that of the smart ECU 4, the engine ECU 22 is allowed to start the engine. The engine ECU 22 permitted to start the engine starts the engine 17 by starting the starter.

  On the other hand, when the multi-institution verification is not established, the ID code box 26 that recognizes this outputs a starter stop signal to the smart ECU 4. The smart ECU 4 does not output a steering lock request signal to the steering lock ECU 21 if it receives a starter stop signal when it receives a system check completion. Accordingly, the steering lock is maintained in the locked state, the immobilizer lock of the smart ECU 4 is not released, and the engine 17 is not allowed to start.

  Therefore, according to the present example, the multi-institution verification and the system check are processed in parallel in time, so that the processing time can be effectively used when the engine is started. Therefore, if the multi-institution verification and the system check are processed in parallel as in this example, the push switch 16 is operated after starting the engine as compared with the case where the multi-institution verification and the system check are sequentially performed. The start time T required until the engine 17 is actually started can be shortened, and it is possible to secure an operation feeling that the engine 17 starts immediately when the push switch 16 is pressed.

According to the configuration of the present embodiment, the following effects can be obtained.
(1) Since the multi-engine verification and the system check are processed in parallel in time, the processing time at the time of starting the engine is effectively used until the engine 17 is started after the push switch 16 is operated. It is possible to shorten the startup time T required for. For this reason, if the push switch 16 is pushed, the operation feeling that the engine 17 starts immediately can be secured.

  (2) When multi-institution verification and system check are processed in parallel, these multi-institution verification and system check are started at the same time, so there is no situation where the other waits for the end of one of the processes. The activation time T can be shortened efficiently.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. Since the second embodiment has a configuration in which only the processes to be paralleled in time are changed compared to the first embodiment, the same parts are denoted by the same reference numerals and detailed description will be given. Is omitted, and only different parts will be described in detail.

  As shown in FIG. 3, when the driver who gets on the shift lever is in the parking position and depresses the push switch 16 while depressing the brake pedal, the power supply ECU 15 detecting this operation confirms the in-vehicle collation result with the smart ECU 4. In addition, a system check start request is output to the airbag ECU 24. Upon receiving this request, the smart ECU 4 recognizes that the in-vehicle collation has been established if it has been set, and outputs a request for starting multi-institution collation to the ID code box 26 and also establishes the in-vehicle collation establishment flag. Lower. On the other hand, if the in-vehicle verification is not established, the in-vehicle verification establishment flag is not set, and the engine 17 is not started.

  The ID code box 26 that has received the request to start multi-institution verification performs multi-institution verification among the ECUs 4, 15, 21, 22, etc., and performs a mutual check of registered codes. When the multi-institution verification is established, the ECUs 4, 15, 21, and 22 related to the hands-free system 2 enter the next operation standby state, and the ECUs 4, 15, 21, and 22 can move to the next operation.

  The airbag ECU 24 inputs a system check start request from the power supply ECU 15 at the same time that the smart ECU 4 receives the confirmation of establishment of in-vehicle verification from the power supply ECU 15. Start. That is, a series of processing from confirmation of the establishment of in-vehicle verification to multi-institution verification and system check are processed in parallel in time. Receiving the request for starting the system check, the airbag ECU 24 performs a system check and performs a self-diagnosis. When the system check is normally completed, the airbag ECU 24 outputs a notification that the system check is complete to the smart ECU 4.

  Upon receiving the completion of the system check, the smart ECU 4 outputs a steering lock power supply request to the power supply ECU 15 and outputs a steering lock request signal to the steering lock ECU 21 on the condition that multi-institution verification is established. Release the steering lock. When the steering lock is released, the power supply ECU 15 turns on the relays 18 to 20. As a result, the starter starts and the engine 17 starts to start.

According to the configuration of the present embodiment, the following effects can be obtained.
(3) Since a series of processes from confirmation of the in-vehicle verification result to multi-institution verification and system check are processed in parallel in time, the processing time at the time of engine start-up is effectively used, and the push switch 16 is It is possible to shorten the startup time T required for starting the engine 17 after starting the engine. For this reason, if the push switch 16 is pushed, the operation feeling that the engine 17 starts immediately can be secured. Also, even if the system check is a process that requires a relatively long time, it is difficult to wait for the system check to end for a while after the multi-institution verification is completed. High effect.

  (4) When processing a series of processes from confirmation of in-vehicle verification results to multi-institution verification and system check in parallel, these series of processes and system check are started at the same time. Therefore, the startup time T can be shortened most efficiently.

In addition, this embodiment is not limited to the said structure, You may change into the following aspects.
-In the first and second embodiments, when superimposing multi-institution verification (including a series of processes from confirmation of ID verification establishment) and system check, this superposition is the start of multi-institution verification and the start of system check. And not simultaneously. That is, the start timing of each process is not particularly limited as long as the multi-institution verification and the system check overlap at least partially.

  -In 1st and 2nd embodiment, multi-institution collation is not limited to what carries out a mutual check of the registration code about all ECUs related to the hands-free system 2, and a mutual check is carried out by at least one of these ECUs. Whatever you do. The multi-institution verification is not limited to being performed by the ECU related to the hands-free system 2, and may be performed by another ECU not related to this system.

  In the first and second embodiments, the system check is not necessarily performed by an ECU that handles important safety parts, and is not particularly limited as long as it is a vehicle-mounted ECU. Further, the contents of the system check are not limited to the self-diagnosis function, and are not particularly limited as long as the function can be confirmed to operate normally.

  The confirmation of the ID collation result that is performed after the push switch 16 is pressed is not limited to asking the smart ECU 4 whether or not the collation has been established, but by actually communicating again with the portable device 3, It may be confirmed that ID verification is established.

  The confirmation of the ID collation result performed when the push switch 16 is pressed is not necessarily limited to in-vehicle collation, but may be, for example, out-of-vehicle collation, or both in-vehicle collation and out-of-vehicle collation.

-The vehicle 1 does not necessarily need a steering lock, and may be omitted.
The smart ECU and the immobilizer ECU are not limited to being integrated with each other, and may be configured by separate IC chips.

  -The operation means operated when starting the engine is not limited to a push-type push switch. For example, a knob may be provided instead of the push switch, and the steering lock is released when the knob is pressed once, and then the engine is started when the knob is turned from OFF → ACC → IG → ON.

  The vehicle type of the vehicle 1 is not limited to an engine vehicle using only the engine 17 as a driving source, but a hybrid vehicle combining a motor and an engine, a fuel cell vehicle using a fuel cell as a power source, a hydrogen vehicle using hydrogen as fuel, etc. Various types can be adopted.

Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
(1) In claim 1 or 3, when the confirmation of the identification verification is completed, the multi-institution verification processing and the system check processing are started simultaneously. In this case, the time can be shortened most efficiently when the processes are overlapped, and the effect of shortening the start-up time required for starting the engine after the operation means is operated to start the engine is the highest.

  (2) In Claim 2 or 4, when the engine is operated to start the engine, a series of processes leading from the confirmation of the identification verification to the multi-institution verification and the system check process are started simultaneously. . In this case, the time can be shortened most efficiently when the processes are overlapped, and the effect of shortening the start-up time required for starting the engine after the operation means is operated to start the engine is the highest.

The block diagram which shows the structure of the hands-free system in 1st Embodiment. The operation | movement flowchart which shows the flow of operation | movement at the time of engine starting. The operation | movement flowchart which shows the flow of operation | movement at the time of engine starting in 2nd Embodiment. The operation | movement flowchart which shows the flow of operation | movement at the time of engine starting in the past.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Portable machine as electronic key, 4 ... Verification ECU which comprises control IC, 15 ... Power supply ECU which comprises control IC, 16 ... Push switch as operation means, 17 ... Engine, 21 ... Control IC Steering lock ECU which constitutes, 22 ... Engine ECU which constitutes control IC, 24 ... Airbag ECU which constitutes other control IC.

Claims (4)

When the operation means for starting the engine is operated to start the engine, registration of the control IC relating to the identification verification is performed on the condition that the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In an engine starter that performs multi-institution verification as a mutual check of codes, and in which a control IC other than the multi-institution verification system performs system check as a self-diagnosis function,
An engine starter characterized in that the multi-institution verification process and the system check process are at least partially overlapped. When the operation means for starting the engine is operated to start the engine, registration of the control IC relating to the identification verification is performed on the condition that the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In an engine starter that performs multi-institution verification as a mutual check of codes, and in which a control IC other than the multi-institution verification system performs system check as a self-diagnosis function,
An engine starter characterized in that a series of processing from confirmation of the establishment of the identification verification to the multi-institution verification and the processing of the system check are at least partially overlapped. When the operation means for starting the engine is operated to start the engine, registration of the control IC relating to the identification verification is performed on the condition that the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In the engine starting method in which multi-institution verification is performed as a mutual check of codes, and the control IC other than the multi-institution verification system performs system check as a self-diagnosis function,
An engine starting method characterized in that the multi-institution verification process and the system check process are at least partially overlapped. When the operation means for starting the engine is operated to start the engine, registration of the control IC relating to the identification verification is performed on the condition that the identification code received from the electronic key matches the vehicle identification code and the identification verification is established. In an engine starting method in which multi-institution verification is performed as a mutual check of codes, and in addition, a control IC other than the multi-institution verification system performs system check as a self-diagnosis function.
An engine starting method characterized in that a series of processing from confirmation of establishment of the identification verification to the multi-institution verification and the processing of the system check are overlapped at least partially.

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