WO2005059862A1 - 車載制御装置の情報更新方法と更新情報通信システム、および、車両搭載制御装置と情報管理基地局装置 - Google Patents
車載制御装置の情報更新方法と更新情報通信システム、および、車両搭載制御装置と情報管理基地局装置 Download PDFInfo
- Publication number
- WO2005059862A1 WO2005059862A1 PCT/JP2003/016039 JP0316039W WO2005059862A1 WO 2005059862 A1 WO2005059862 A1 WO 2005059862A1 JP 0316039 W JP0316039 W JP 0316039W WO 2005059862 A1 WO2005059862 A1 WO 2005059862A1
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- WIPO (PCT)
- Prior art keywords
- vehicle
- information
- update
- base station
- management base
- Prior art date
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/64—Retargetable
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/091—Traffic information broadcasting
- G08G1/092—Coding or decoding of the information
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
Definitions
- the present invention relates to an information update method and an update information communication system for a control device mounted on a vehicle such as an automobile, and a vehicle-mounted control device and an information management base station device.
- the present invention relates to an information update method for providing an update service for a computer program or the like, an update information communication system for updating the information, and an information management base station device and a vehicle onboard control device used in the update information communication system.
- a rewritable non-volatile storage device such as an EEPROM that can rewrite data from an external device via a serial communication interface as an on-vehicle electronic control device (computer) that performs engine control and transmission control of vehicles such as automobiles
- EEPROM electrically erasable read-only memory
- serial communication interface an on-vehicle electronic control device (computer) that performs engine control and transmission control of vehicles such as automobiles
- serial communication for example, Japanese Patent Office Publication No. 6-333882. No. 8).
- the server of the information management center and the communication terminal connected to the on-board controller can communicate bidirectionally over a wide area communication network such as a public telephone network, and the on-board controller transmits programs to the information management center.
- the information management center selects the relevant program from the server and sends it to the communication terminal, and the onboard controller fetches the program received by the communication terminal and writes it to the rewritable nonvolatile storage unit.
- An operation system has also been proposed (for example, Japanese Patent Office Patent Publication: Japanese Patent Application Laid-Open No. 2002-44472).
- the vehicle to be updated is not moved to the dealer and the program of the vehicle control device of the target vehicle is updated without moving to the dealer. Dating can be done.
- the update is started by the vehicle user's will, the burden is placed on the vehicle user, and the vehicle user is inadvertently unable to perform the update by forgetting or intentionally not updating.
- manufacturers and dealers have to contact a large number of users by postcards, e-mails, etc. every time they need to modify or update their programs.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to improve the efficiency of updating programs and data of an in-vehicle device without burdening a vehicle user.
- the manufacturer or dealer updates the vehicle control system programs and data without contacting each user by postcard or e-mail.
- the on-board controller information update method and update information communication that provides an update service that ensures that the on-board controller is not always updated due to the problem of
- An object of the present invention is to provide a system, a vehicle-mounted control device, and an information management base station device. Disclosure of the invention
- the information management base station device checks whether or not there is a vehicle / control device to be updated for all vehicles under the management of the information management base station device. According to the reply, a vehicle to be updated is selected, and an information updating method of the vehicle-mounted control device that executes the update to the vehicle to be updated by wireless communication can be provided.
- the present invention provides a method for transmitting information on information updating from an information management base station apparatus by wireless communication, receiving the information in a vehicle, and determining whether the information updating is necessary for the vehicle based on the received information. Side, and the result of the determination is transmitted from the vehicle to the information management base station device. If the received information is necessary for the vehicle, the information management base station device updates the vehicle by wireless communication. To update the information of the in-vehicle control unit that transmits the Law can be provided.
- the information management base station device and the vehicle can perform two-way wireless communication, and when an update event occurs, the presence or absence of an in-vehicle control device to be updated by the information management base station device is determined.
- Information communication for all vehicles under the management of the information management base station device, selecting the vehicles to be updated by reply from each vehicle, and executing the update for the vehicles to be updated by wireless communication A system can be provided.
- the present invention provides an information management base station apparatus and a vehicle capable of bidirectional wireless communication, transmitting information related to information update from the information management base station apparatus by wireless communication, and transmitting the information to the vehicle.
- the vehicle ⁇ ⁇ ⁇ ⁇ J determines whether or not information update is necessary for the vehicle based on the received information, transmits the determination result from the vehicle to the information management base station device, and the received information is transmitted to the vehicle. If necessary, an update information communication system is provided in which the information management base station device transmits update information to the vehicle by wireless communication and rewrites information of an on-vehicle control device mounted on the vehicle. be able to.
- the information to be rewritten includes data such as a program of an in-vehicle control device and control constants, and information transmitted from the information management base station device to a vehicle is management information of the in-vehicle control device. Contains.
- the timing for rewriting the program and data of the onboard control device is limited according to the state of the vehicle.
- the time at which the program and data of the vehicle control device are rewritten can be limited to vehicles that are parked and are not driving.
- the information management base station device has a database storing update information and vehicle information for a plurality of types of vehicles, and based on the vehicle information, Select specific update information from the database. Further, the present invention enables two-way wireless communication with a vehicle, and when an update event occurs, all vehicles under the management of the information management base station device determine whether or not there is an on-board controller to be updated. The vehicle to be updated is selected by the reply from each vehicle, and the vehicle to be updated is updated. It is possible to provide an information management base station device that executes the process by wireless communication.
- the present invention enables bidirectional wireless communication with a blue information management base station, and determines whether or not the information is a target vehicle control device in response to an update inquiry from the information management base station device. It is possible to provide an in-vehicle control device that makes a determination, transmits the determination result to the information management base station, and performs an update based on update information transmitted from the information management base station.
- the information update method and the update information communication system of the on-vehicle control device, and the on-vehicle control device and the information management base station device require a rewrite request of a program and data from a point distant from the vehicle by radio or the like, and the target vehicle
- the identifier of the target control device mounted on the target vehicle is transmitted.
- the vehicle receives the rewrite request and determines whether rewriting is possible, and returns the result.
- the program and data to be newly written are transmitted, and the vehicle is rewritten to the target control device. After the rewriting is completed, it returns a message indicating whether or not the rewriting has been completed normally. If the rewriting has been completed normally, it is registered and managed in the database provided.
- the rewriting of the program and the like, that is, the update is performed by the vehicle manufacturer and the dealer. Since the update is automatically performed for all vehicles to be updated according to the instructions of the information management base station to be managed, the in-vehicle control device is always updated without any burden on the vehicle user, and the on-board control is performed.
- the equipment is always kept in an optimal state or better, and the driving performance of the vehicle operation, fuel economy, and exhaust gas performance are optimized.
- FIG. 1 is an explanatory diagram showing an overview of an update information communication system according to the present invention
- FIG. 2 is a diagram showing an example of the content of vehicle information registered in a database on a base station side of the update information communication system according to the present invention
- FIG. 4 is a sequence diagram showing an example of a communication sequence of the update information communication system according to the present invention.
- FIG. 4 is a diagram showing a state of transmission from the base station side to the vehicle of the update information communication system according to the present invention.
- FIG. 6 is a diagram showing a frame format of the first program data packet transmitted from the base station side of the update information communication system according to the present invention
- FIG. 7 is a diagram showing a frame format of the update information communication system according to the present invention.
- FIG. 8 is a diagram showing a frame format of a bucket of program data after the first time transmitted by the base station
- FIG. 8 is a diagram showing a vehicle engine control system in the update information communication system to which the present invention is applied
- FIG. 10 is a block diagram showing an example of an engine control device of an on-vehicle control device of a vehicle in an update information communication system to which the present invention is applied
- FIG. 11 is a diagram showing an example of a memory map configuration of a flash memory included in a vehicle-mounted control device in an update information communication system to be subjected to the present invention.
- FIG. 12 shows an example of a writing mode.
- FIG. 12 is a flowchart of a rewrite OK / NG determination process / rating in a vehicle in an update information communication system to which the present invention is applied.
- FIG. 13 is an update information communication system according to the present invention.
- FIG. 14 is a state transition diagram showing an example of a state transition on the base station side of the update information communication system according to the present invention;
- FIG. 15 is a state transition diagram showing an example of a state transition of the update information communication system according to the present invention;
- FIG. 16 is a state transition diagram showing an example of a state transition on the vehicle side.
- FIG. 16 shows an example of a flash memory configuration of a vehicle-mounted control device on the vehicle side of the update information communication system according to the present invention.
- FIG. 17 is a diagram showing another example of the flash memory configuration of the vehicle-mounted control device on the vehicle side of the communication system according to the present invention.
- FIG. 18 to FIG. 20 are update information communications according to the present invention, respectively.
- FIG. 21 is a diagram showing another configuration example on the base station side and the vehicle side of the system.
- FIG. 21 is an explanatory diagram showing another example of the outline of the update information communication system to which the present invention is applied. Best mode for carrying out the invention
- FIG. 1 shows an outline of an update information communication system of a vehicle control device according to an embodiment of the present invention.
- the information management base station apparatus 100 (hereinafter abbreviated as base station 100) is a data base.
- a server 101 having a communication device 102, a transceiver 103 for performing mobile communication (wireless communication) using electromagnetic waves, and an antenna 104 for wireless communication.
- the server 101 of the base station 100 is installed at an automobile manufacturer, a dealer, or the like, and collectively manages programs of an on-board control device of a large number of vehicles (automobiles) 200 to be managed, various data necessary for controlling the vehicles, and user information. I do.
- the database 102 of the server 101 stores programs of the on-board control unit (on-vehicle ECU) for all vehicles to be managed and various data necessary for vehicle control on a vehicle-by-vehicle basis or on-vehicle control basis.
- the information is stored for each type of control device, and vehicle information (user information) to be managed is stored for each vehicle.
- the vehicle information stored in the database 102 is specific to each vehicle (user). As shown in FIGS. 2 (a) and 2 (b), the vehicle information includes vehicle identification information for each vehicle. Includes vehicle management number as communication destination information, management number for each in-vehicle control device on in-vehicle LAN, program version information for each in-vehicle control device, and presence / absence of rewrite hold flag indicating interruption of program rewriting .
- FIG. 2 (a) shows vehicle information of a certain vehicle A
- FIG. 2 (b) shows vehicle information of another vehicle B
- the control device 1 is, for example, an engine control device 201 mounted on a vehicle
- the control device 2 is a transmission control device 202.
- a plurality of vehicles (automobiles) 200 belong to one base station 100.
- the vehicle 200 includes an electronically controlled engine control unit (E-ECU) 201, a transmission control unit (AT-ECU) 202, a control unit 203 for an air conditioner, etc.
- E-ECU electronically controlled engine control unit
- AT-ECU transmission control unit
- control unit 203 for an air conditioner, etc.
- the vehicle is connected to a vehicle LAN 204 such as a CAN (Controller Area Network) or the like so as to be capable of bidirectional data communication.
- a transceiver 205 for performing mobile communication (wireless communication) using electromagnetic waves and a display 206 are connected to the in-vehicle LAN 204.
- Bidirectional mobile communication (wireless communication) is performed between the base station 100 and the vehicle 200 under the management of the base station 100 in order to update information of the on-vehicle control device.
- Mobile communications between the base station 100 and the vehicle 200 include S-band satellite communications, satellite communications such as broadcasting systems, and DSRC (Dedicated Short Range Computer). nication), etc., and bidirectional communication is performed by a dedicated mobile telephone network (mobile telephone network using public lines).
- Each vehicle 200 passively communicates with the base station 100 through programs and control constants of all on-vehicle control devices such as the engine control device 201, the transmission control device 202, and the air conditioner control device 203. Rewriting and updating of data such as various parameters necessary for those controls, that is, updating is performed.
- the base station 100 inquires of the type of the in-vehicle control device to be updated, that is, determines whether or not the in-vehicle control device to be updated is under the control of the base station 100.
- the update is performed for all the vehicles 200 at once, the update target vehicle 200 is selected by a reply from each vehicle, and the update is performed to the update target vehicle 200 by wireless communication.
- This update applies to vehicles 200 that are parked and are not in a driving state, that is, vehicles 200 that are to be updated and are in an updatable state that do not interfere with the driving of vehicle 200, so as not to disturb the driving of vehicle 200. It is done for.
- the base station 100 makes an inquiry to the update request destination vehicle 200 and only receives a response from the request destination vehicle 200 indicating that the own vehicle is in an updatable state.
- an update request (Wake-Up request message) is repeatedly transmitted until the update is started.
- Each node of the communication sequence includes a base station 100, a transmission / reception device 205, a vehicle-mounted LAN 204, an E-ECU (engine control device) 201, an AT-ECU (transmission control device) 202, and a display device 206.
- the transmission / reception device 205, the in-vehicle LAN 204, the E-ECU 201, the AT-ECU 202, and the display device 206 The base station 100 and the transmission / reception device 205 perform wireless communication.
- the vertical direction is the time axis direction, and (1), (2), (3)...
- Base station 100 Send SWa ke—Up (wake up) request message to on-vehicle transmitter / receiver 205.
- the on-vehicle transmitting / receiving device 205 transmits a reply (ACK: acknowledgge) to the base station 100 in response to the Wake-Up request.
- ACK acknowledgge
- a Wake-Up request is sent from the onboard transmitting / receiving device 205 to the onboard LAN 204.
- a Wake-Up request is sent from the in-vehicle LAN 2 O 4 to the E_ECU 201.
- the vehicle ⁇ LAN 204 issues a display request to the display device 206 indicating that the device is in Wake-Up.
- the transmitting / receiving apparatus 205 transmits a message to that effect (Wake-Up completed) to the base station 100.
- the base station 100 inquires of the on-vehicle transmitting / receiving device 205 about the model of the control device to be rewritten with data such as a program. That is, the base station 100 transmits the model data of the control device to be rewritten to the on-vehicle transmitting / receiving device 205.
- Transmitter / receiver 205 responds that it has received the model inquiry message (ACK) to the base station 100.
- ACK model inquiry message
- the vehicle LAN 204 Upon receiving the type confirmation message, the vehicle LAN 204 sends an inquiry message to the E-ECU 201 as to whether or not it is a target.
- the vehicle LAN 204 also sends an AT-ECU 202 an inquiry message as to whether or not it is the target.
- the reply message (target reply) is sent from the in-vehicle LAN 204 to the transmitting / receiving device 205.
- the transmitting / receiving apparatus 205 sends a reply of the object confirmation to the base station 100.
- the transmitting / receiving device 205 transmits a reply (ACK) to the base station 100 to the effect that the status confirmation message has been received to the base station 201.
- ACK reply
- a message is sent from the transmission / reception device 205 to the in-vehicle LAN 204 requesting a status check.
- the in-vehicle LAN 204 that has received the status confirmation request message sends a request message for the current status confirmation to the E-ECU 201.
- the current status of the vehicle can be known from various switch and sensor signals input to the E-ECU 201, and based on these, the E-ECU 201 Detects the situation, and returns the result of the situation confirmation to the vehicle LAN 204. It is.
- the in-vehicle LAN 204 that has received the message of the status confirmation result sends the message to the transmission / reception device 205. (25) Then, the transmission / reception device 205 transmits the message of the status confirmation result to the base station 100.
- the result of the status check is in a rewritable state, that is, in an update-enabled state.
- the base station 100 having received the result of the status confirmation (OK result) transmits the rewriting program to the transmitting / receiving device 205.
- the transmission / reception device 205 that has received the rewriting program transmits ACK to the base station 100 that the reception was normal.
- the in-vehicle LAN 2 O 4 sends a message indicating that rewriting has been completed to the transmitting / receiving device 205.
- the transmitting / receiving device 2 O 5 transmits a message to the base station 100 that the program has been rewritten.
- a message of an instruction (display request) for displaying that the program has been rewritten is sent to 205 on-vehicle display device 206 to 205.
- FIG. 4 shows the data transmission format of two types of vehicles A and B as the vehicle 200.
- Databases for vehicle A and vehicle B 102 A, 102 B and transceiver 1 03 is the base station 100 side.
- Database 102 A manages vehicle A data
- database 102 B manages vehicle B data.
- the rewriting program stored in the database 1.2A, 102B is transmitted by the transceiver 103.
- the rewriting program for the vehicles A and B is divided and transmitted as buckets as data Pa11, Pa21, Pbll, and Pb21.
- Data Pal 1 is one packet of the program data of the control device 1 (E—ECU) of vehicle A
- data Pb 11 1 is one packet of the program data of the control device 1 (E—ECU) of vehicle B.
- Data P a 21 is one packet of the program data of the control device 2 (AT-ECU) of vehicle A
- data P b 21 1 is one packet of the program data of the control device 2 (AT-ECU) of vehicle B. It is.
- the packet data transmitted to the vehicle A is received by the on-vehicle transceiver 205 and transferred to the respective control devices.
- the packet data transmitted to the vehicle B is also received by the on-vehicle transceiver 205 and transferred to the respective control devices.
- the rewriting completion data is transmitted to the transceiver 205 mounted on the vehicle.
- the transceiver 205 transmits the rewrite end data to the transceiver 103 on the base station 100 side.
- the rewrite end data received by the base station 100 will be registered in the vehicle A database 102A. The same applies to vehicle B.
- FIG. 6 shows an example of a frame format of a first program data bucket transmitted from the base station 100 of the update information communication system to which the present invention is applied.
- the bucket of program data includes a header 601, a target vehicle management number area 602, a program management area 603, a data area 604, a check code area 605, and a end mark 606.
- the program management area 603 further includes a target control unit management number section 607 and a model section. It consists of 608, base program management number section 609, unique naming (manufacturing naming) section 610, and program version section 611.
- FIG. 7 shows an example of a frame format of a program data packet transmitted from the base station 100 side of the update information communication system to which the present invention is applied after the first time.
- the program data packet consists of a header 701, target vehicle control number area 702, data area 703, check code area 704, and end mark 70
- the data area 703 further includes a write number section 707, a program start address section 708, a program end address section 709, and a program data section 710.
- FIG. 8 shows an example of an engine control P system using an engine control device 201 which is a vehicle-mounted control device of the vehicle 200.
- An internal combustion engine 801 is connected to an intake pipe 804 by bypassing the throttle valve 802 and the throttle valve 802 with the intake air amount.
- Idle speed control valve ISC that controls the flow area of the flow path
- An intake pipe pressure sensor 805 for detecting an intake pipe pressure is connected to the intake pipe 804.
- a fuel injection valve 806 that supplies the required fuel and an ignition plug 814 that ignites a mixture of fuel and air supplied to the engine combustion chamber are attached to each cylinder of the engine 800. Have been. Further, an ignition module 808 for supplying ignition energy to the ignition plug 814 based on an ignition signal output from the engine control device 201 is connected to the engine 800.
- the engine control unit 201 includes an intake pipe pressure sensor 805, a crank angle sensor 807, a water temperature sensor 809 that detects engine cooling water temperature, an oxygen concentration sensor 810, and a drive range of an automatic transmission.
- the fuel control is established by detecting the intake pipe pressure. Fuel control is established even if the amount of intake air of the gin is detected.
- the engine control unit 201 is connected to an in-vehicle LAN 204 using CAN or the like, and is configured to transmit and receive data to and from other in-vehicle devices.
- FIG. 9 shows an internal configuration of an engine control device 201 which is a vehicle control device of the vehicle 200.
- the engine control unit 201 is a microcomputer compatible with CAN, and controls the I / O driver 901 by LSI, the arithmetic processing unit (MPU) 902, and the arithmetic processing unit 902. It has a flash memory (NV-ROM) 903 for storing (control programs) and control constants, and a volatile memory 905 for storing the calculation results and the like of the arithmetic processing unit 902. Connected to LAN controller 906.
- NV-ROM flash memory
- the throttle opening sensor 911 On the input side of the IZO driver 901, the throttle opening sensor 911, intake pipe pressure sensor 805, crank angle sensor 807, water temperature sensor 809, oxygen concentration sensor 810, vehicle speed Sensor 9 13, drive range sensor 8 11, parking brake switch 8 12, and ignition key switch 8 13 are connected.
- the idle speed control valve (ISC) 803 is connected. Since the fuel injection valve 806 and the ignition coil 920 are provided for each cylinder, in the case of a four-cylinder engine, the one-cylinder fuel injection valve 806— :! ⁇ 4 cylinder fuel injection valves 8 0 6-4 4 fuel injection valves are connected, 1 cylinder ignition coil 9 20 0-1 to 4 cylinder ignition coil 9 2 0-4 4 ignition coils are connected Is done.
- the I / D converter converts the electrical signals of the above-mentioned sensors and switches installed in the engine into digital arithmetic processing signals, and drives the digital arithmetic control signals into the above-mentioned engine control actuator. Convert to a signal.
- the arithmetic processing unit 902 executes the control program stored in the flash memory 903, and judges the state of the engine based on the digital arithmetic processing signal from the I / I driver 901.
- the amount of fuel required by the engine, the ignition timing, etc. are calculated based on a procedure predetermined by the control program, and the calculated values are calculated.
- the arithmetic unit 902 includes a flash memory writing unit 904 capable of rewriting the flash memory 903 inside.
- the volatile memory 905 is connected to a backup power supply to save the memory contents even when the ignition key switch 813 is off and the power is not supplied to the engine controller 201. It may be done. Further, the LAN controller 906 may be included inside the arithmetic unit 906.
- the flash memory 903 is programmed by the model part 1101, base program management number part 1102, unique number (serial number) part 1103, program version part 1104, and program rewrite number part 1105.
- the management area 1107 is mapped to the program area 1106.
- the base program management number 1 102 is the management number of the default program when the controller is first released.
- the memory map consists of a program management area 1107 and a program area 1108, and the program purge section 1104, the number of program rewrites 3 ⁇ 43 ⁇ 41105 and the program area 1106 become the program rewrite area. ing.
- the packet data Pall, Pal2, Pal3, Pal4... Transmitted from the base station 10 ⁇ side are constructed as one data Da continuous to the transmission / reception device 205.
- the data Da is transmitted to the in-vehicle controller, for example, the MPU 902 of the E-ECU 201 via the in-vehicle LAN 204.
- the MPU 902 has a flash memory writing section 904, and the data Da is transferred to the flash memory writing section 904, and the data D all, D al 2, D al 3 ... is disturbed! Is rewritten in the rewriting area 1 109.
- a rewrite request is received (step 1701).
- the OK / NG determination processing routine is started by receiving the rewrite request, and the transceiver 205 wakes up (step 1702).
- in-vehicle LAN 204 rewrite The target in-vehicle control device wakes up in sequence (steps 1702 and 1703).
- the engine control ECU 201 is to be rewritten will be described.
- Step 1705 it is determined whether the ignition key switch 8 13 is on or off (step 1705).
- step S709 it is determined that the update is possible, that is, the rewrite is OK (step 1709), and the rewrite OK determination message is transmitted to the base station 100 (step 1710).
- step 1711 determines that rewriting is NG (step 1711), and transmits a message of rewriting NG determination to base station 100 (step 1712).
- step 2001 it is determined whether or not there is a rewrite instruction (step 2001). If there is no rewrite instruction, the process ends.
- step 2002 it is determined whether or not the program is currently being rewritten. If rewriting is in progress, branch to continue rewriting. If it is not being rewritten, it is determined whether it is the first rewriting (step 2003). If the rewriting is not the first time, it is determined whether or not a predetermined time has passed since the last rewriting standby (step 2044). If the predetermined time has elapsed, a rewrite request is sent (step 2O05). On the other hand, if the specified time has not passed, Will be completed. Next, it is determined whether or not a rewriting OK determination has been received from the vehicle 1 • 0 (step 2006). If an NG has been received, the process ends. On the other hand, if the rewrite ⁇ K is determined, the routine enters the rewrite program transmission stage of this routine.
- step 2007 it is determined whether or not the vehicle 100 has received a rewrite NG (step 2007). If a rewrite NG is received, a determination is made as to whether the rewrite is in standby (step 201-13).
- step 2008 it is determined whether the rewrite has been completed normally. If the rewriting has been completed normally, the target vehicle unique number and the target control device number are registered in the target database 102 (steps 2014 and 2015).
- step 2009 it is determined whether or not the rewriting program has been transmitted for the first time (step 2009).
- the rewriting program is transmitted for the first time (the packet of the rewriting program is the first time)
- the target vehicle unique number and the target control device number are transmitted (steps 201 and 201), and the vehicle to be rewritten and the on-vehicle control device are transmitted.
- the rewriting program is transmitted continuously (step 201-2).
- FIG. 14 shows an example of a state transition of the base station 100 of the update information communication system.
- Block 1801 is in a standby state. If a rewrite instruction is issued, the state transits to the state of block 1802 for rewrite determination.
- the rewrite end processing is performed in block 1804.
- the above-described database 102 of the base station 100 is updated.
- block 1805 performs a rewrite waiting process.
- the rewriting standby state is recorded in the database 102 described above. After that, the process transits to the standby processing at block 1801.
- FIG. 15 shows an example of the state transition of the vehicle 100 in the update information communication system. You.
- the vehicle 100 is normally in a stopped state with the ignition key turned off, and the system on the vehicle side is in a sleep state as shown in a block 1901.
- the flow transits to block 1902 to determine whether or not rewrite is OK. Here, if it is determined that rewriting is NG, the flow transits to block 1902 again. If it is determined that rewriting is OK, the flow transits to block 1903 to receive the rewriting program.
- the flow shifts to block 1904 to execute the rewrite.
- the block transits from block 1905 to block 1906, performs rewriting completion processing and sends a signal indicating that rewriting is normal, and then proceeds to block 1901 in the initial state.
- the present invention it becomes possible to update a program or data of a vehicle-mounted control device of a target vehicle without moving the vehicle to be updated to a dealer.
- management man-hours can be significantly reduced.
- This update is automatically performed for all vehicles to be updated according to the instructions of the base station 100 managed by the vehicle manufacturer and dealer, so that the on-board controller can be updated without any burden on the vehicle user. Is always ensured, The in-vehicle control unit is always kept in an optimal state or in a better state, and the driving performance of the vehicle operation, fuel economy, and exhaust gas performance are optimized.
- FIG. 16 shows another example of the flash memory configuration of the vehicle-mounted control device on the vehicle 100 side of the update information communication system to which the present invention is applied.
- the in-vehicle LAN 204 is connected to the MPU 902 inside the vehicle control device.
- the MPU 902 and subsequent units are composed of a bank switching unit 1404 and flash memory banks (banks 1 and 2) 1405 and 1406.
- the state shown is a state in which the program data of the flash memory bank 1405 has been rewritten. Until the rewriting is normally completed, the in-vehicle control device, for example, the E-ECU 201 controls with the program and data of the flash memory bank 1406.
- the E-ECU 201 starts control using the program and data in the flash memory bank 1405.
- programs and data can be updated at any time.
- FIG. 17 shows another example of the flash memory configuration of the vehicle control device on the vehicle 100 side of the update information communication system to which the present invention is applied.
- the inside of the flash memory 903 is configured by a mapping of a program vector 1505, a link (1) 1506, and a link (2) 1507.
- the illustrated state is a state in which the program data of the bank 1 506 has been rewritten. Until the rewriting is normally completed, the on-vehicle control device, for example, the E-ECU 201 performs control using the program and data of the link 1507.
- FIG. 18 shows a configuration example of the base station 100 side and the vehicle 200 side of the update information communication system.
- the base station 100 includes a version control station 1002 for programs and the like and a transceiver 1003.
- the vehicle 200 includes a transceiver 1005, a vehicle-mounted LAN 1006, an engine control ECU 1007, a transmission ECU 1008, and an air conditioner control ECU 10009, all of which are connected by a LAN.
- a transceiver 1005 a vehicle-mounted LAN 1006, an engine control ECU 1007, a transmission ECU 1008, and an air conditioner control ECU 10009, all of which are connected by a LAN.
- three in-vehicle control devices are connected on the LAN, but it is also possible to connect a plurality of control devices.
- FIG. 19 and FIG. 20 show other configuration examples of the base station 100 side and the vehicle 200 side of the update information communication system, respectively.
- the transceiver 1005 mounted on the vehicle 100, the engine control ECU 1206, the transmission 1207, and the air conditioner control ECU 1208 are connected to the vehicle 100. Connected directly without LAN.
- the transceivers 1306, 1307, and 1308 are provided in each of the engine control ECU 10007, the transmission ECU 1008, and the air conditioner control ECU 10009. Connected individually. It is also effective to adopt a configuration in which each transceiver transmits and receives data to one transceiver of the vehicle and collectively transmits the data to the base station 100 (BlueTooth or wireless LAN).
- the base station 100 Bluetooth or wireless LAN
- the base station 100 is provided with the transceiver 103 and the database 102.
- the base station 100 has the database 100.
- the transceiver 21001 wirelessly or wiredly (Internet, telephone line, dedicated line, etc.) 2102.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2003/016039 WO2005059862A1 (ja) | 2003-12-15 | 2003-12-15 | 車載制御装置の情報更新方法と更新情報通信システム、および、車両搭載制御装置と情報管理基地局装置 |
EP03778925A EP1699031A4 (en) | 2003-12-15 | 2003-12-15 | METHOD FOR UPDATING INFORMATION CONTAINED IN A VEHICLE CONTROL APPARATUS, INFORMATION UPDATE COMMUNICATION SYSTEM, VEHICLE CONTROL APPARATUS, AND INFORMATION MANAGEMENT BASE STATION |
JP2005512188A JP4361902B2 (ja) | 2003-12-15 | 2003-12-15 | 車載制御装置の情報更新方法と更新情報通信システム、および、車両搭載制御装置と情報管理基地局装置 |
US10/582,853 US8290659B2 (en) | 2003-12-15 | 2003-12-15 | Information updating method of vehicle-mounted control apparatus, update information communication system, vehicle-mounted control apparatus, and information management base station apparatus |
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PCT/JP2003/016039 WO2005059862A1 (ja) | 2003-12-15 | 2003-12-15 | 車載制御装置の情報更新方法と更新情報通信システム、および、車両搭載制御装置と情報管理基地局装置 |
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Also Published As
Publication number | Publication date |
---|---|
JP4361902B2 (ja) | 2009-11-11 |
EP1699031A1 (en) | 2006-09-06 |
JPWO2005059862A1 (ja) | 2007-07-12 |
US20070100513A1 (en) | 2007-05-03 |
EP1699031A4 (en) | 2008-01-23 |
US8290659B2 (en) | 2012-10-16 |
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