CN105334840A - Whole-vehicle network sub-node configuration method - Google Patents
Whole-vehicle network sub-node configuration method Download PDFInfo
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- CN105334840A CN105334840A CN201510584552.6A CN201510584552A CN105334840A CN 105334840 A CN105334840 A CN 105334840A CN 201510584552 A CN201510584552 A CN 201510584552A CN 105334840 A CN105334840 A CN 105334840A
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- configuration information
- gateway
- child node
- diagnostic device
- password
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
Abstract
The invention discloses a whole-vehicle network sub-node configuration method comprising following steps of: S1, checking whether a backup node includes the configuration information of all sub-nodes and going to S2 if yes or going to S3; S2, reading the configuration information of the sub-nodes from the backup node, writing the configuration information of the sub-nodes into the sub-nodes, and then ending a configuration process; and S3, reading the configuration information of the sub-nodes from a diagnostic device, writing the configuration information of the sub-nodes into the sub-nodes, and then ending a configuration process. In the method, the configuration information is no longer stored in a gateway such that a reliability requirement of the gateway is reduced and unclear duty allocation is prevented. The method is suitable for all automobile production and maintenance fields.
Description
Technical field
The present invention relates to automobile production maintenance field, especially relate to the car load network child node collocation method that a kind of reliability is higher.
Background technology
The application of automobile CAN-bus technology is current very ripe, but due to the handling stability energy to automobile, security performance, power performance etc. require to improve constantly, electronic controller is on the increase, self-adaption cruise system is configured as joined in vehicle at a lot of middle height, parking assisting system, saddle horse control system etc. improve the electronic controller of drive safety and comfortableness, signal between electronic controller also must increase alternately, for the requirement of total inorganic nitrogen, CAN is also by 1 traditional tunnel, the even more direction development of 2 road direction 5 tunnels, and Single Electron controller oneself also has a sub-network-bus system.
In order to the management reducing automobile research cost and reduce electronic controller, electronic controller software develops a maximized software to adapt to the vehicle of various configuration in the development phase, the configuration information that diagnostic device adopts database or other means to obtain is by diagnosis service write electronic controller, and electronic controller carrys out the software parameter of self-adaptation Current vehicle configuration according to the car load configuration information of write.
Configuration Online development function affects by car load network diagnosis topology to a great extent, some vehicle diagnostic device directly can communicate with electronic controller, configuration information directly can send to electronic controller by diagnosis service, but a lot of vehicle diagnostic device cannot directly communicate with child node controller, OBD diagnose interface discord child node controller is directly connected, configuration information is all often first write gateway controller and store, then gateway controller is activated by diagnosis service or other means and is forwarded to child node controller, the advantage of this collocation method is when electronic controller damages the new part of renewal after sale, as long as activate gateway with diagnostic device again forward configuration information, when changing after sale part, diagnostic device does not need again to obtain configuration information, reduce and change after sale part operation, but the greatest drawback of this collocation method be also gateway this part, there are following 2 kinds of defects:
1) require that the reliability of gateway is very high, because when gateway damages, configuration information needs to re-write, and in addition when electronic controller damages, also need to reactivate gateway forwards configuration information, this also adds the operation of changing after sale part from another angle.
2) from the angle of divisions of responsibility can, above-mentioned Configuration Online method is only limitted to the subsystem that electronic controller is connected with gateway, and the developer of gateway controller may agree to store the configuration information of car load and bear the responsibility of the subsystem configures that gateway connects.When gateway changes other electronic controllers into, and when connecting other electronic control unit subsystem under this controller, this controller developer also would not bear the configuration information obligation of storage subsystem.
Summary of the invention
The present invention mainly solves, divisions of responsibility can higher to gateway reliability requirement existing for prior art technical matters not clearly etc., provides a kind of gateway not store configuration information, reliability is high, security is good car load network child node collocation method.
The present invention is directed to that above-mentioned technical matters mainly solved by following technical proposals: a kind of car load network child node collocation method, comprises the following steps:
S1, check whether backup node includes the configuration information of child node, if had, enter step S2, if not, enter step S3;
S2, from backup node read child node configuration information and be written to child node, layoutprocedure terminates;
S3, from diagnostic device read child node configuration information and be written to child node, layoutprocedure terminates.
In this programme, gateway/electronic controller does not store only to be responsible for forwarding configuration information to child node controller, and the connected mode of gateway/electronic controller and child node controller is not limited to CAN, also can be LIN, K or other universal serial bus.Configuration information diagnoses service to send to gateway/electronic controller by the diagnosis address of gateway/electronic controller and CAN by diagnostic device, and gateway/electronic controller does not store issues subsystem by the configuration information received by serial data transmission mode.
Gateway/electronic controller not store configuration information, also just do not exist when gateway/electronic controller damages and upgrade the requirement that new part re-writes configuration information, the exploitation pressure of gateway/electronic controller also will reduce in addition.
As preferably, step S3 is specially:
S301, connection diagnostic equipment, to vehicle diagnostics mouth, open vehicle ignition switch;
S302, request gateway enter extensive diagnostic pattern;
S303, diagnostic device request enter gateway safely;
S304, diagnostic device configuration information are sent to gateway and request starts to forward configuration information routine;
Configuration information is write by LIN diagnostic write data $ 2E service to child node after S305, gateway receive configuration information;
S306, diagnostic device wait for 3 seconds, treat that configuration information is write child node success by gateway;
S307, diagnostic device request start gateway and read child node configuration information routine;
After S308, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment;
The configuration information that S309, diagnostic device read is compared with the configuration information of S304 step write, as consistent then child node configuration information writes successfully, enters S310 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S301 step;
S310, diagnostic device request gateway enter acquiescence diagnostic mode, and configuration terminates.
As preferably, step S2 is specially:
S201, connection diagnostic equipment, to vehicle diagnostics mouth, open vehicle ignition switch;
S202, diagnostic device send reading command to gateway, and gateway reads configuration information according to reading command from backup node;
The configuration information read is written to child node by S203, gateway;
After S204, write terminate, the configuration information read is sent to diagnostic device by gateway;
S205, diagnostic device receive configuration information that gateway sends over and ask to start gateway later and read child node configuration information routine;
After S206, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment;
The configuration information that S207, diagnostic device read and S204 walk the configuration information received and compare, and as consistent then child node configuration information writes successfully, enter S208 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S201 step;
S208, diagnostic device request gateway enter acquiescence diagnostic mode, and configuration terminates.
As preferably, step S202 is specially:
S2021, user input level password by diagnostic device, and diagnostic device transmission comprises the reading command of level password to gateway;
S2022, gateway receive reading command send later comprise level password read requests to backup node;
After S2023, backup node receive the read requests comprising level password, level password and the first password of self are contrasted, if level password mates with first password, then the configuration information of the first memory block is sent to gateway, then enters step S203; If level password does not mate with first password, then the configuration information of the first memory block is wiped, then return code error and respond to gateway;
After S2024, gateway receive code error response, code error is responded and is forwarded to diagnostic device;
After S2025, diagnostic device receive code error response, select continuation input secondary password or terminate layoutprocedure by user, if continue to input secondary password, then diagnostic device transmission comprises the reading command of secondary password to gateway;
S2026, gateway receive reading command send later comprise secondary password read requests to backup node;
After S2027, backup node receive the read requests comprising secondary password, by the second codon pair ratio of secondary password with self, if secondary password is mated with the second password, then the configuration information of the second memory block is sent to gateway, then enters step S203; If secondary password is not mated with the second password, then the configuration information of the second memory block is wiped, then return inefficacy and respond to gateway;
Inefficacy response is forwarded to diagnostic device after receiving response of losing efficacy by S2028, gateway;
S2029, diagnostic device terminate layoutprocedure after receiving response of losing efficacy.
The gateway that this programme is corresponding is connected with a backup node, includes two memory blocks in backup node, each memory block correspondence one independently password.When reading configuration information from backup node, what first compare is the first password of corresponding first memory block, if password correctly, allows the configuration information of reading first memory block, if cryptographic core is to mistake, wipes the content of the first memory block immediately; The second password is used when again carrying out password authentification, if password correctly, allow the configuration information in reading second memory block, if code error, wipe the content in the second memory block immediately, when user identity is illegal, Brute Force method just can not be adopted to carry out decryption and to steal configuration information.Adopt two memory blocks that validated user can be avoided to input the code error problem that directly causes backup node to lose efficacy, and the configuration information that the first memory block comprises is complete configuration information, but the configuration information that the second memory block comprises is not containing significant data can meets the basic configuration information of controller primary demand.
The substantial effect that the present invention brings is that reliability is high, requires lower to gateway, security is good, and information is not easy to reveal, and can select suitable configuration flow according to varying environment, applicability is wide, and developer at different levels divides the work clearly, there is not the problem that divisions of responsibility can is unclear.
Accompanying drawing explanation
Fig. 1 is a kind of syndeton schematic diagram when being configured child node of the present invention;
In figure: 1, diagnostic device, 2, engine controller, 3, backup node, 4, battery sensor.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: to be configured battery sensor 4, diagnostic device 1 connecting engine controller 2(gateway), engine controller 2 connects backup node 3 and battery sensor 4(child node).
Concrete configuration method is: S1, check whether backup node 3 includes the configuration information of child node, if had, enters step S2, if not, enters step S3;
S2, read the configuration information of child node and be written to child node from backup node 3, layoutprocedure terminates;
S3, read the configuration information of child node and be written to child node from diagnostic device 1, layoutprocedure terminates.
Step S3 is specially:
S301, connection diagnostic equipment 1, to vehicle diagnostics mouth, open vehicle ignition switch;
S302, request gateway enter extensive diagnostic pattern;
Request message diagnosed by diagnostic device 1: 7E00210030000000000
Electronic controller response diagnostics message: 7E8065003003200C800
S303, diagnostic device 1 ask safety to enter gateway;
Seed asked by diagnostic device 1: 7E00227010000000000
Gateway feedback seed: 7E8066701 seed #0#1#2#30000
Diagnostic device 1 computation key: 7E0066702 key #0#1#2#30000
Gateway feedback key: 7E00267020000000000
S304, diagnostic device 1 configuration information are sent to gateway and request starts to forward configuration information routine, and forwarding configuration information identifier is 0x020x01, xx is configuration information byte, and yy is that routine starts executing state;
0x01: routine starts successfully;
0x02: routine starts unsuccessful.
Request message diagnosed by diagnostic device 1: 7E00531010201xx0000
Gateway response diagnostics message: 7E80571010201yyAAAA
Write configuration information by LIN diagnostic write data $ 2E service to child node after S305, gateway receive configuration information, the NAD(LIN of child node diagnoses address) be 0x01;
Gateway requests writes configuration information: 3C01042E00B2xxFFFF
Configuration information is write in the response of Lin child node: 3D01036E00B2FFFFFF
S306, diagnostic device 1 wait for 3 seconds, treat that configuration information is write child node success by gateway;
The request of S307, diagnostic device 1 starts gateway and reads child node configuration information routine, because engine controller 2 feedback configuration information may need a period of time to diagnostic device 1, also need to ask to read configuration information to battery sensor 4 because electronics receives after the routine reading configuration starts request;
Request message diagnosed by diagnostic device 1: 7E00531010202000000
Engine controller 2 response diagnostics message: 7E80571010202xxAAAA
After S308, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment 1;
Configuration information is read in electronic controller request: 3C01032200B2FFFFFF
Configuration information is write in the response of Lin child node: 3D01046200B2xxFFFF
The configuration information that S309, diagnostic device 1 read is compared with the configuration information of S304 step write, as consistent then child node configuration information writes successfully, enters S310 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S301 step;
S310, diagnostic device 1 ask gateway to enter acquiescence diagnostic mode, and configuration terminates;
Request message diagnosed by diagnostic device 1: 7E00210030000000000
Engine controller 2 response diagnostics message: 7E8065003003200C800.
Step S2 is specially:
S201, connection diagnostic equipment 1, to vehicle diagnostics mouth, open vehicle ignition switch;
S202, diagnostic device 1 send reading command to gateway, and gateway reads configuration information according to reading command from backup node 3;
The configuration information read is written to child node by S203, gateway;
After S204, write terminate, the configuration information read is sent to diagnostic device 1 by gateway;
S205, diagnostic device 1 receive configuration information that gateway sends over and ask to start gateway later and read child node configuration information routine;
After S206, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment 1;
The configuration information that S207, diagnostic device 1 read and S204 walk the configuration information received and compare, and as consistent then child node configuration information writes successfully, enter S208 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S201 step;
S208, diagnostic device 1 ask gateway to enter acquiescence diagnostic mode, and configuration terminates.
Step S202 is specially:
S2021, user input level password by diagnostic device 1, and diagnostic device 1 transmission comprises the reading command of level password to gateway;
S2022, gateway receive reading command send later comprise level password read requests to backup node 3;
After S2023, backup node 3 receive the read requests comprising level password, level password and the first password of self are contrasted, if level password mates with first password, then the configuration information of the first memory block is sent to gateway, then enters step S203; If level password does not mate with first password, then the configuration information of the first memory block is wiped, then return code error and respond to gateway;
After S2024, gateway receive code error response, code error is responded and is forwarded to diagnostic device 1;
After S2025, diagnostic device 1 receive code error response, select continuation input secondary password or terminate layoutprocedure by user, if continue to input secondary password, then diagnostic device 1 transmission comprises the reading command of secondary password to gateway;
S2026, gateway receive reading command send later comprise secondary password read requests to backup node 3;
After S2027, backup node 3 receive the read requests comprising secondary password, by the second codon pair ratio of secondary password with self, if secondary password is mated with the second password, then the configuration information of the second memory block is sent to gateway, then enters step S203; If secondary password is not mated with the second password, then the configuration information of the second memory block is wiped, then return inefficacy and respond to gateway;
Inefficacy response is forwarded to diagnostic device 1 after receiving response of losing efficacy by S2028, gateway;
S2029, diagnostic device 1 terminate layoutprocedure after receiving response of losing efficacy.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the term such as gateway, child node herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (4)
1. a car load network child node collocation method, is characterized in that, comprise the following steps:
S1, check whether backup node includes the configuration information of child node, if had, enter step S2, if not, enter step S3;
S2, from backup node read child node configuration information and be written to child node, layoutprocedure terminates;
S3, from diagnostic device read child node configuration information and be written to child node, layoutprocedure terminates.
2. car load network child node collocation method according to claim 1, it is characterized in that, step S3 is specially:
S301, connection diagnostic equipment, to vehicle diagnostics mouth, open vehicle ignition switch;
S302, request gateway enter extensive diagnostic pattern;
S303, diagnostic device request enter gateway safely;
S304, diagnostic device configuration information are sent to gateway and request starts to forward configuration information routine;
Configuration information is write by LIN diagnostic write data $ 2E service to child node after S305, gateway receive configuration information;
S306, diagnostic device wait for 3 seconds, treat that configuration information is write child node success by gateway;
S307, diagnostic device request start gateway and read child node configuration information routine;
After S308, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment;
The configuration information that S309, diagnostic device read is compared with the configuration information of S304 step write, as consistent then child node configuration information writes successfully, enters S310 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S301 step;
S310, diagnostic device request gateway enter acquiescence diagnostic mode, and configuration terminates.
3. car load network child node collocation method according to claim 1 and 2, it is characterized in that, step S2 is specially:
S201, connection diagnostic equipment, to vehicle diagnostics mouth, open vehicle ignition switch;
S202, diagnostic device send reading command to gateway, and gateway reads configuration information according to reading command from backup node;
The configuration information read is written to child node by S203, gateway;
After S204, write terminate, the configuration information read is sent to diagnostic device by gateway;
S205, diagnostic device receive configuration information that gateway sends over and ask to start gateway later and read child node configuration information routine;
After S206, gateway receive the routine requests reading child node configuration information, sending LIN to child node diagnoses $ 22 to read configuration information service, current configuration information diagnoses service feedback to gateway by Lin by child node, gateway receives the configuration information of child node feedback, by configuration information update in the reading child node configuration information routine of response diagnostics equipment;
The configuration information that S207, diagnostic device read and S204 walk the configuration information received and compare, and as consistent then child node configuration information writes successfully, enter S208 step; As inconsistent then child node configuration information writes unsuccessfully, investigation reason reconfigures child node from S201 step;
S208, diagnostic device request gateway enter acquiescence diagnostic mode, and configuration terminates.
4. car load network child node collocation method according to claim 3, it is characterized in that, step S202 is specially:
S2021, user input level password by diagnostic device, and diagnostic device transmission comprises the reading command of level password to gateway;
S2022, gateway receive reading command send later comprise level password read requests to backup node;
After S2023, backup node receive the read requests comprising level password, level password and the first password of self are contrasted, if level password mates with first password, then the configuration information of the first memory block is sent to gateway, then enters step S203; If level password does not mate with first password, then the configuration information of the first memory block is wiped, then return code error and respond to gateway;
After S2024, gateway receive code error response, code error is responded and is forwarded to diagnostic device;
After S2025, diagnostic device receive code error response, select continuation input secondary password or terminate layoutprocedure by user, if continue to input secondary password, then diagnostic device transmission comprises the reading command of secondary password to gateway;
S2026, gateway receive reading command send later comprise secondary password read requests to backup node;
After S2027, backup node receive the read requests comprising secondary password, by the second codon pair ratio of secondary password with self, if secondary password is mated with the second password, then the configuration information of the second memory block is sent to gateway, then enters step S203; If secondary password is not mated with the second password, then the configuration information of the second memory block is wiped, then return inefficacy and respond to gateway;
Inefficacy response is forwarded to diagnostic device after receiving response of losing efficacy by S2028, gateway;
S2029, diagnostic device terminate layoutprocedure after receiving response of losing efficacy.
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| CN201510584552.6A CN105334840B (en) | 2015-09-15 | 2015-09-15 | Vehicle network child node collocation method |
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| CN201510584552.6A CN105334840B (en) | 2015-09-15 | 2015-09-15 | Vehicle network child node collocation method |
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