CN102314363A - Booting method of automobile controller and automobile controller - Google Patents
Booting method of automobile controller and automobile controller Download PDFInfo
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- CN102314363A CN102314363A CN201110212056A CN201110212056A CN102314363A CN 102314363 A CN102314363 A CN 102314363A CN 201110212056 A CN201110212056 A CN 201110212056A CN 201110212056 A CN201110212056 A CN 201110212056A CN 102314363 A CN102314363 A CN 102314363A
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Abstract
The invention is suitable for the field of automobile controllers, and provides a booting method of an automobile controller and the automobile controller. The method comprises the following steps of: electrifying or resetting, and detecting whether a refresh request sent by an upper computer is received within a set time interval t; if no refresh request is received, detecting whether an application program is complete, and if so, skipping to the application program; and if the refresh request is received, sending a response confirmation message to the upper computer, skipping to a message processing module, acquiring refresh data from the upper computer by using the message processing module, and refreshing the application program or a boot program. In the embodiment of the invention, a new boot mode is adopted, so that the problem that a program cannot be upgraded once again due to the problems of power failure of the automobile controller in the upgrading process of a target application program, program incompleteness after the target program is upgraded, forbidding of a communication interface between a boot load program and the upper computer by the target application program, and the like is solved.
Description
Technical field
The invention belongs to the automobile controller field, relate in particular to a kind of guiding startup method and automobile controller of automobile controller.
Background technology
Automobile controller (or claiming ECU, ECU) generally comprises MCU (electric machine controller), VCU (or claiming VMS, entire car controller), BCM (car body controller) and BMS (battery management system) etc.
Along with the variation of using, Boot loader of automobile controller (Bootloader) and upper computer software thereof need to upgrade.In the process of destination application (Application) of upgrading automobile controller; If power down takes place, when needing destination application imperfection or impaired, that destination application forbidding Boot loader the uses situation such as communication interface of upgrading; Can cause automobile controller to lose efficacy, and the destination application of can't upgrading once more.When above-mentioned situation takes place in addition, possibly need dismounting, change automobile controller.Therefore, improve the security and the reliability of Boot loader, be the research topic that the automobile controller research staff receives much concern always.
Safe and reliable Boot loader can be avoided in upgrading during destination application or after the upgrading destination application accomplishes, because various uncertain factors cause automobile controller can't carry out target program or the risk of the destination application of can't upgrading once again.In addition, dismounting in the time of can also avoiding taking place above-mentioned situation, change the risk of automobile controller, can also improve the efficient in the automobile controller development and Design process to a certain extent.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of Boot loader of automobile controller; Be intended to solve since automobile controller power down in the process of upgrading destination application, upgrading destination application accomplish after program imperfection, destination application forbidden the problems such as communication interface of Boot loader and host computer, the problem of the destination application that causes upgrading once again.
The embodiment of the invention is achieved in that a kind of guiding startup method of automobile controller, said method comprising the steps of:
After powering on or resetting, in the time t that sets, detect the refresh requests of whether receiving that host computer sends;
If do not receive refresh requests then whether detect application program complete, when complete, jump to application program;
If receive refresh requests then send and reply acknowledge message and give host computer, and jump to message processing module, obtain refresh data and carry out application programs or the refreshing of boot from host computer by message processing module.
Further, whether detection receives that the step of the refresh requests that host computer sends also comprises before in the time t that sets:
Send guiding and start indication to host computer
Further, said refresh requests is to specify the UDS of ID or the service request information of KWP2000 agreement, or comprises a particular request message of unit type or device address.
Another purpose of the embodiment of the invention is to provide a kind of Bootstrap Commissioning Program of automobile controller, and said boot comprises:
The refresh requests detection module is used for after powering on or resetting, and in the time t that sets, detects the refresh requests of whether receiving that host computer sends;
The integrity detection module if be used for not receiving refresh requests then whether detect application program complete, jumps to application program when complete;
Reply the redirect module,, and jump to message processing module if be used for receiving refresh requests then send and reply acknowledge message and give host computer; And
Message processing module is used for obtaining refresh data and carrying out application programs or the refreshing of boot from host computer.
Further, said Bootstrap Commissioning Program comprises:
Guiding starts indicates sending module, is used for sending guiding and starts indication to host computer.
Further, said refresh requests is to specify the UDS of ID or the service request information of KWP2000 agreement, or comprises a particular request message of unit type or device address.
Another purpose of the embodiment of the invention is to provide a kind of automobile controller, and said automobile controller adopts above-mentioned each described Bootstrap Commissioning Program.
In an embodiment of the present invention; Through adopting new guidance mode; Solve since automobile controller power down in the process of upgrading destination application, upgrading destination application accomplish after program imperfection, destination application forbidden the problems such as communication interface of Boot loader and host computer, the problem of the destination application that causes upgrading once again.
Description of drawings
Fig. 1 is the implementing procedure of the guiding startup method that provides of first embodiment of the invention;
Fig. 2 is the implementing procedure of the guiding startup method that provides of second embodiment of the invention;
Fig. 3 is the implementing procedure of the guiding startup method that provides of third embodiment of the invention;
Fig. 4 is the software module structure synoptic diagram of the automobile controller that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 shows the implementing procedure of the guiding startup method that first embodiment of the invention provides, and details are as follows:
In step S101, automobile controller powers on or resets.
In step S102, automobile controller carries out conventional initialization.
In step S103, detect the refresh requests of whether receiving that host computer sends.When not receiving refresh requests, execution in step S104.When receiving refresh requests, execution in step S105.
In step S104, judge whether wait timeout, also promptly judge whether to reach the stand-by period t of setting.For fear of long-term detection refresh requests, can set one refresh stand-by period t ((like 10ms), thus can suitably reduce start-up time.If wait timeout, then execution in step S106; Otherwise return step S103, promptly continue to detect refresh requests.
In step S105, send and reply acknowledge message, and jump to step S108 to host computer.Like this, so that let host computer prepare to cooperate application programs to refresh.
In step S106, judge whether application program is complete.If application program is complete, execution in step S107 then; Otherwise execution in step S108.
In step S107, jump to application program.
In step S108, obtain refurbishing procedure and carry out refreshing of application programs from host computer by message processing module.
That is to say; Power on or reset and after initialization accomplishes; Bootloader (Bootstrap Commissioning Program of automobile controller) at first makes the cycle detection of a fixed time (like 10ms); In this time, then operate in Bootloader if detected refresh requests (or getting into the request of Bootloader refresh mode) always.Otherwise the fixed time does not later detect refresh requests, and whether then detect destination application complete, and according to the integrality of application program, jumps to application program or rest on Bootloader.
Fig. 2 shows the implementing procedure of the guiding startup method that second embodiment of the invention provides, and details down:
In step S201, automobile controller powers on or resets.
In step S202, automobile controller carries out conventional initialization.
In step S203, judge whether application program is complete.
In step S204, when complete, put the application integrity sign.
In step S205, when imperfect, remove the application integrity sign.
In step S206, obtain message and carry out corresponding Message Processing (as: refresh requests, program download etc.) from host computer by message processing module.In this step S206, the embedded testing process of refresh requests.The process that it is embedded: analyze the existing periodic duty and the relation of refresh requests between effective time that reset.If equate with certain periodic duty; Then " application integrity " and " refresh requests " detected and the application program redirect (application program is complete; When refresh requests is invalid) function add in this periodic duty, otherwise, the newly-increased periodic duty of realizing this function.
In step S207, jump to application program.
Second embodiment of the invention is embedded detection; Power on or reset and after initialization accomplishes; Whether Bootloader at first detects application program complete, and to put the complete zone bit of application program (Application integrity flag) be corresponding state, carries out the Bootloader normal work to do then; And the detection of embedded in normal work to do " whether receiving refresh requests ", and put refresh requests effective marker position (Refresh program request flag) for corresponding state.In the periodic scheduling (like the 10ms periodic duty) of appointment, judge whether simultaneously to satisfy two conditions: application program is complete and do not receive effective refresh requests.If condition satisfies, then jump to application program.Otherwise, continue operation Bootloader.
The second embodiment of the invention and first embodiment are similar basically, and its key distinction is the testing process of reset request is embedded in message processing module.
Fig. 3 shows the implementing procedure of the guiding startup method that third embodiment of the invention provides.After powering on or resetting also initialization completion, Bootloader initiatively outwards sends a piece of news, and (like 10 ms) receive and correct replying then rest on Bootloader in the time of appointment.Otherwise, do not reply affirmation as if receiving, then carry out application integrity and detect, at this moment,, then jump to application program, otherwise still rest on Bootloader if application program is complete.
Wherein, scheme is not suitable for UDS (ISO-14229), KWP2000 (ISO-14230), the Bootloader of design of protocol such as CCP in the 3rd.
When stating scheme in realization, need the cooperation of host computer updating software.In addition, when application program is complete, and need not refresh application program the time, slave controller powers on or to reset to the residence time that jumps between the Application unsuitable long, and suggestion is controlled between the 10ms to 100ms.
Bootloader designed according to this invention in addition, be can compatible conventional refresh flow.For example, use UDS and according to the design's Bootloader, the refresh flow of its host computer both can have been used the conventional refresh flow of UDS, the refresh flow that also can use the present invention to propose.
In general, for the design Bootloader that the present invention set forth, no matter use the sort of mode to go to realize, at first will confirm a special message, be used for indicating, the host computer procedure request refreshes application program.This message can also comprise the affirmation information of unit type or device address.
For fear of automobile controller logical between the interference of proper communication, the message of (maybe need avoid occurring) should not appear in this message of appointment usually between the communication network of automobile controller.With UDS (ISO-14229) or KWP2000 (ISO-14230) is example, can use 10 Hex services request to get into refresh mode, also can use 34 Hex service to carry out refresh requests, can also use 31 Hex service to use self-defining routine.For the ISO-14229 agreement, recommend to use 10 Hex and 31 Hex service, do not recommend to use 34 Hex service.Because 34 Hex service is the service that could respond after needing safety certification to confirm normally.Like this, use 34 Hex, be equivalent to use the foundation of 27 Hex and 34 Hex service while as host computer request Bootloader refurbishing procedure.Thereby strengthened the needed delay time of detection refurbishing procedure to a certain extent, reduced the toggle speed of controller.
At present, most of automobile controller all is to use the CAN network as the main communication network between each controller of whole automobile.Commonly used two kinds are refreshed mode, and what a kind of CCP of being based on demarcated refreshes, and a kind of in addition UDS of being based on or KWP2000 refresh.After controller rolls off the production line, can unload the CCP function usually.So, after the controller volume production, in Bootloader, the modal refresh function that just is based on UDS or KWP2000.
Fig. 4 shows the software configuration module of a kind of automobile controller that the embodiment of the invention provides; This automobile controller software comprises a Bootstrap Commissioning Program; Said boot adopts three layers or two layers of software framework: communication layers, network protocol layer (optional, when application layer essential during based on UDS or KWP2000), application layer.Wherein, application layer comprises:
The refresh requests detection module is used for after powering on or resetting, and in the time t that sets, detects the refresh requests of whether receiving that host computer sends;
The integrity detection module if be used for not receiving refresh requests then whether detect application program complete, jumps to application program when complete;
Reply the redirect module,, and jump to message processing module if be used for receiving refresh requests then send and reply acknowledge message and give host computer; And
Message processing module is used for obtaining brush message preface and carrying out application programs or the refreshing of Bootstrap Commissioning Program from host computer.
Said Bootstrap Commissioning Program also comprises:
Guiding starts indicates sending module, is used for sending guiding and starts indication to host computer
In an embodiment of the present invention, said refresh requests is the particular message that comprises unit type or device address based on a request service or the boot appointment of UDS or KWP2000 that boot is used ID.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the guiding startup method of an automobile controller is characterized in that, said method comprising the steps of:
After powering on or resetting, in the time t that sets, detect the refresh requests of whether receiving that host computer sends;
If do not receive refresh requests then whether detect application program complete, when complete, jump to application program;
If receive refresh requests then send and reply acknowledge message and give host computer, and jump to message processing module, obtain refresh data and carry out application programs or the refreshing of boot from host computer by message processing module.
2. the guiding startup method of automobile controller according to claim 1 is characterized in that, the step that in the time t that sets, detects the refresh requests of whether receiving that host computer sends also comprises before:
Send guiding and start indication to host computer.
3. the guiding startup method of automobile controller according to claim 1 is characterized in that, said refresh requests is to specify the UDS of ID or the service request information of KWP2000 agreement, or comprises a particular request message of unit type or device address.
4. the Bootstrap Commissioning Program of an automobile controller is characterized in that, said boot comprises:
The refresh requests detection module is used for after powering on or resetting, and in the time t that sets, detects the refresh requests of whether receiving that host computer sends;
The integrity detection module if be used for not receiving refresh requests then whether detect application program complete, jumps to application program when complete;
Reply the redirect module,, and jump to message processing module if be used for receiving refresh requests then send and reply acknowledge message and give host computer; And
Message processing module is used for obtaining refresh data and carrying out application programs or the refreshing of boot from host computer.
5. the Bootstrap Commissioning Program of automobile controller according to claim 4 is characterized in that, said Bootstrap Commissioning Program comprises:
Guiding starts indicates sending module, is used for sending guiding and starts indication to host computer.
6. the Bootstrap Commissioning Program of automobile controller according to claim 4 is characterized in that, said refresh requests is to specify the UDS of ID or the service request information of KWP2000 agreement, or comprises a particular request message of unit type or device address.
7. an automobile controller is characterized in that, said automobile controller adopts each described Bootstrap Commissioning Program among the claim 4-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110212056A CN102314363A (en) | 2011-07-27 | 2011-07-27 | Booting method of automobile controller and automobile controller |
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| CN201110212056A CN102314363A (en) | 2011-07-27 | 2011-07-27 | Booting method of automobile controller and automobile controller |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019792A (en) * | 2012-12-21 | 2013-04-03 | 北京经纬恒润科技有限公司 | Application reprogramming method and application reprogramming system |
| US20150197160A1 (en) * | 2014-01-15 | 2015-07-16 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching a mode of a vehicle |
| CN104898637A (en) * | 2015-03-27 | 2015-09-09 | 北京经纬恒润科技有限公司 | Vehicle controller self-refreshing method and system |
| CN105700419A (en) * | 2014-11-28 | 2016-06-22 | 上海汽车集团股份有限公司 | Control method and device of whole vehicle controller and whole vehicle control method and system |
| CN106873943A (en) * | 2017-01-12 | 2017-06-20 | 深圳市优必选科技有限公司 | The firmware upgrade method of embedded system |
| CN106970892A (en) * | 2017-03-21 | 2017-07-21 | 北京新能源汽车股份有限公司 | Single chip microcomputer operation method, device and system and single chip microcomputer |
| CN107290998A (en) * | 2016-04-13 | 2017-10-24 | 北京连创驱动技术有限公司 | A kind of method that nominal data based on UDS is write with a brush dipped in Chinese ink |
| CN107391174A (en) * | 2017-06-15 | 2017-11-24 | 广州视源电子科技股份有限公司 | Control method and control device for online upgrading of system |
| CN108228217A (en) * | 2018-01-18 | 2018-06-29 | 晶晨半导体(上海)股份有限公司 | A kind of method for upgrading system |
| CN108491224A (en) * | 2018-07-09 | 2018-09-04 | 深圳市路畅科技股份有限公司 | A kind of vehicle-mounted Oftware updating method and system |
| CN108920196A (en) * | 2018-06-28 | 2018-11-30 | 国机智骏（北京）汽车科技有限公司 | Entire car controller bootload upgrade method, device, entire car controller and vehicle |
| CN110532001A (en) * | 2019-09-09 | 2019-12-03 | 阳光电源股份有限公司 | Vehicle control device writes with a brush dipped in Chinese ink method, system, diagnostic device and vehicle control device |
| CN110688136A (en) * | 2019-09-25 | 2020-01-14 | 北京经纬恒润科技有限公司 | Application program updating method and device |
| CN112764786A (en) * | 2021-01-04 | 2021-05-07 | 东风商用车有限公司 | Starting method and device for automobile ECU Bootloader |
| CN113986393A (en) * | 2021-11-01 | 2022-01-28 | 北京经纬恒润科技股份有限公司 | Electronic control unit starting method and device |
| CN114563995A (en) * | 2022-01-17 | 2022-05-31 | 潍柴动力股份有限公司 | Reset detection method, device and equipment of electronic control unit and storage medium |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019792A (en) * | 2012-12-21 | 2013-04-03 | 北京经纬恒润科技有限公司 | Application reprogramming method and application reprogramming system |
| US9751422B2 (en) * | 2014-01-15 | 2017-09-05 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching a mode of a vehicle |
| US20150197160A1 (en) * | 2014-01-15 | 2015-07-16 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching a mode of a vehicle |
| CN105700419A (en) * | 2014-11-28 | 2016-06-22 | 上海汽车集团股份有限公司 | Control method and device of whole vehicle controller and whole vehicle control method and system |
| CN105700419B (en) * | 2014-11-28 | 2018-08-10 | 上海汽车集团股份有限公司 | Control method, device and the control method of finished of entire car controller, system |
| CN104898637B (en) * | 2015-03-27 | 2017-11-10 | 北京经纬恒润科技有限公司 | The self-refresh method and system of a kind of automobile controller |
| CN104898637A (en) * | 2015-03-27 | 2015-09-09 | 北京经纬恒润科技有限公司 | Vehicle controller self-refreshing method and system |
| CN107290998A (en) * | 2016-04-13 | 2017-10-24 | 北京连创驱动技术有限公司 | A kind of method that nominal data based on UDS is write with a brush dipped in Chinese ink |
| CN106873943A (en) * | 2017-01-12 | 2017-06-20 | 深圳市优必选科技有限公司 | The firmware upgrade method of embedded system |
| CN106873943B (en) * | 2017-01-12 | 2020-01-17 | 深圳市优必选科技有限公司 | Firmware upgrading method of embedded system |
| CN106970892A (en) * | 2017-03-21 | 2017-07-21 | 北京新能源汽车股份有限公司 | Single chip microcomputer operation method, device and system and single chip microcomputer |
| CN107391174A (en) * | 2017-06-15 | 2017-11-24 | 广州视源电子科技股份有限公司 | Control method and control device for online upgrading of system |
| CN107391174B (en) * | 2017-06-15 | 2020-12-04 | 广州视源电子科技股份有限公司 | Control method and control device for online upgrading of system |
| CN108228217A (en) * | 2018-01-18 | 2018-06-29 | 晶晨半导体(上海)股份有限公司 | A kind of method for upgrading system |
| CN108920196A (en) * | 2018-06-28 | 2018-11-30 | 国机智骏（北京）汽车科技有限公司 | Entire car controller bootload upgrade method, device, entire car controller and vehicle |
| CN108491224A (en) * | 2018-07-09 | 2018-09-04 | 深圳市路畅科技股份有限公司 | A kind of vehicle-mounted Oftware updating method and system |
| CN110532001A (en) * | 2019-09-09 | 2019-12-03 | 阳光电源股份有限公司 | Vehicle control device writes with a brush dipped in Chinese ink method, system, diagnostic device and vehicle control device |
| CN110688136A (en) * | 2019-09-25 | 2020-01-14 | 北京经纬恒润科技有限公司 | Application program updating method and device |
| CN110688136B (en) * | 2019-09-25 | 2023-12-22 | 北京经纬恒润科技股份有限公司 | Application program updating method and device |
| CN112764786A (en) * | 2021-01-04 | 2021-05-07 | 东风商用车有限公司 | Starting method and device for automobile ECU Bootloader |
| CN113986393A (en) * | 2021-11-01 | 2022-01-28 | 北京经纬恒润科技股份有限公司 | Electronic control unit starting method and device |
| CN114563995A (en) * | 2022-01-17 | 2022-05-31 | 潍柴动力股份有限公司 | Reset detection method, device and equipment of electronic control unit and storage medium |
| CN114563995B (en) * | 2022-01-17 | 2024-03-19 | 潍柴动力股份有限公司 | Reset detection method, device, equipment and storage medium of electronic control unit |
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Application publication date: 20120111 |