CN102476616A - Periodic self-detection method for electric equipment of vehicle - Google Patents
Periodic self-detection method for electric equipment of vehicle Download PDFInfo
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- CN102476616A CN102476616A CN2010105596249A CN201010559624A CN102476616A CN 102476616 A CN102476616 A CN 102476616A CN 2010105596249 A CN2010105596249 A CN 2010105596249A CN 201010559624 A CN201010559624 A CN 201010559624A CN 102476616 A CN102476616 A CN 102476616A
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Abstract
The invention relates to a periodic self-detection method for electric equipment of a vehicle. The detection method is characterized by comprising performing self-detection on an equipment control network, each network node processor and electric equipment of a vehicle controlled by the network node processor respectively. The detection method is simple and effectively; detected failure information can be transmitted in time, so that a user can find problems very first time and take further measures; and the user take precaution measures on faults, the occurrence rate of danger is lowered effectively, and the safety of the user is guaranteed greatly.
Description
Technical field
The present invention relates to method of inspection, specifically, relate to the cycle from the detection method.
Background technology
The microprocessor control technology is widely applied in each function system in the modern vehicle; Make discrete function system performance get a promotion; The function system of separation is coupled together through bus; Just constituted a vehicle arrangement bus Control Network system, be articulated between each functional node on this network and realized function synthesized and information sharing through specific bus communication control protocol; Vehicle arrangement bus Control Network system not only will realize the control to equipment, also will realize can indicating to the occupant in real time when et out of order the self-checking function in the vehicle arrangement operational process.
Gu Wenyan Mao Enrong China Agricultural University journal 2000; (4): 109-112 discloses " based on the self-propelled vehicle security technical capability full automaticity checking system of the new world "; Wait and form by " outward appearance detects and the discharging of login station detects station ", and further point out: " self-checking function: can detect the mode of operation of automobile equipment, comprise self check " A/D cartoon road, PORT COM coupled condition, discharge station, speedmeter tester sideslip monitor station, axle weight/brake platform and headlight, loudspeaker, chassis detection station; The documents content is special vehicle testing technology; Be that a kind of " off-line " formula detects, testing goal is " safety method ", but this checking system need be accomplished concrete detection by computing machine; Make vehicle in the process of going, can not in time reflect vehicle state information; In case et out of order, the user can not understand this information in the very first time, also just can't in time take treatment measures to fault; Extend a series of problem thus, make this system still rest on an elementary step the detection of vehicle arrangement.
Summary of the invention
The objective of the invention is to; Above-mentioned defective to the prior art existence; Provide a kind of vehicular electrical equipment cycle from the detection method, this method of inspection is simply effective, can detect the failure problems of vehicle rapidly in time; Thereby make the user make a response to fault and handle, broken through the defective that the normal conventional vehicle arrangement detects in the very first time.
A kind of vehicular electrical equipment cycle provided by the invention is from the detection method; Its improvements are that said method of inspection comprises respectively to device control network; Certainly the detection of the electrical equipment of being controlled to each node of network treater and to the node of network treater may further comprise the steps:
1) with bus controller and each node energized, the program of each self-operating oneself, the counting machine of node microprocessor begins accumulated counts;
2) the bus controller program is at first inquired the node communication state, through the response message decision node communications status of node, if mal is explained the node communication failure from remote node 1 beginning; If it is normal then carry out following query node counter data; If the data of receiving are identical with the data of receiving last time; Be that counting machine does not have counting to add up, then represent the modal processor possible breakdown, if counting machine adds up normally; Represent that then node communication and microprocessor controllable function are normal, can proceed following operation;
3) modal processor operational vehicle equipment self-inspection measuring program, and testing result is uploaded to bus controller, realize real-time self-checking function to the car load electrical equipment;
4) bus controller requires node to communicate the interface self check, and the result is in order to the bus communication inquiry of next system cycle;
5) bus controller and each remote node are carried out top 2) to 4) operation.
The provided by the invention first preferred vehicular electrical equipment cycle is from the detection method; Said detecting certainly: fault detection program is embedded in the system program to device control network to accomplishing through the trace routine of on the bus network controller, moving; Adopt the operation of fixing bus scheduling frequency with system program, be about to bus line command and break into data packet and on bus, send with certain cycle frequency; The beginning of each program loop all will be inquired the remote node communications status, and the end in each cycle all requires the current communications status of remote node self check, and stores this information in order to inquiry next time, thereby detects performance period.
The cycle of the provided by the invention second preferred vehicular electrical equipment Control Network, said was the trace routine completion through moving on each microprocessor node to detecting certainly of each node of network from the detection method:
The microprocessor trace routine is embedded in the control program of microprocessing unit equally; Little processing and detecting is programmed to a counting machine that constantly adds up; Counter values can be running in the watchdog routine of bus controller and inquire about periodically; If the counter values that inquires constantly adds up, just explain that each microprocessor node is in proper working order; If counter values is constant or variation abnormality, explain that then the work of microprocessor node has fault;
The cycle of the provided by the invention the 3rd preferred vehicular electrical equipment Control Network is from the detection method; When bus network and modal processor state all just often; Carry out equipment periodic again from detecting, test has realized the cycle self-checking function to whole vehicular electrical equipment so by different level.
The cycle of the provided by the invention the 4th preferred vehicular electrical equipment Control Network, step 1) gate time interval was less than the minimum cycle of run of system program on the bus controller from the detection method.
Based on microprocessor control technology and the continuous application of bus communication control technology in vehicle arrangement control; The present invention proposes a kind of vehicular electrical equipment cycle from the detection method; Bus network, each node mode of operation in the work and the equipment of being controlled are detected in real time, can real-time diagnosis and warning when certain node, certain device fails.
State-detection to electrical equipment comprises generating, takes out dirt, starting, battery tension detect, oil mass detects, connection, disconnection, overcurrent, the short circuit of load, distribution state of a control such as open circuit detect; When detecting fault, point out and report to the police according to the fault rank.
And " vehicular electrical equipment cycle from detect " be meant that vehicle realizes the real time automatic detection to electrical equipment in the process of moving; Characteristics one are that self-checking function and systemic-function coupling are tight; Testing process is embedded in the system control function; Together carry out with vehicle control, perception fast when purpose is et out of order is for maintenance provides support.Characteristics two are to realize through the bus Control Network, improve the state-detection coverage and the degree of depth.
Compared with prior art, a kind of vehicular electrical equipment cycle provided by the invention has the following advantages from the detection method:
1, method of inspection is simply effective, can in time pass on detected failure message, and the user was pinpointed the problems in the very first time, and then takes further terms of settlement;
2, make the user take the measure that checks erroneous ideas at the outset, effectively reduce dangerous generation, for user's security provides strong guarantee to fault;
3, promoted the application in vehicle arrangement control of microprocessor control technology and bus communication control technology;
4, the failure problems of vehicle in time obtains handling, and can reduce vehicle greatly because of not keeping in repair for a long time, effectively prolongs the vehicle operation life-span;
5, make easily, can extensively promote, the good commercial prospect is provided;
6, it is untimely to have broken through common detecting test of vehicle, inefficient defective;
7, can further promote the universal of automobile, the life that is convenient for people to;
8, promote economic further developing, and the progress of science.
Description of drawings
Fig. 1 is: a kind of vehicular electrical equipment cycle provided by the invention is from the vehicle arrangement control bus network architecture scheme drawing that detects method;
Fig. 2 is: a kind of vehicular electrical equipment cycle provided by the invention is from the vehicle arrangement control bus network monitoring program flow diagram that detects method;
Fig. 3 is: a kind of vehicular electrical equipment cycle provided by the invention is from the power sourced electric management system bus network scheme drawing about embodiment that detects method.
The specific embodiment
Below through the specific embodiment a kind of vehicular electrical equipment cycle provided by the invention is done further more detailed explanation from the detection method.
The vehicular electrical equipment cycle of present embodiment is from the detection method, and wherein, method of inspection comprises respectively to device control network, and the detection certainly of the electrical equipment of being controlled to each node of network treater and to the node of network treater may further comprise the steps:
1) with bus controller and each node energized, the program of each self-operating oneself, the counting machine of node microprocessor begins accumulated counts;
2) the bus controller program is at first inquired the node communication state, through the response message decision node communications status of node, if mal is explained the node communication failure from remote node 1 beginning; If it is normal then carry out following query node counter data; If the data of receiving are identical with the data of receiving last time; Be that counting machine does not have counting to add up, then represent the modal processor possible breakdown, if counting machine adds up normally; Represent that then node communication and microprocessor controllable function are normal, can proceed following operation;
3) modal processor operational vehicle equipment self-inspection measuring program, and testing result is uploaded to bus controller, realize real-time self-checking function to the car load electrical equipment;
4) bus controller requires node to communicate the interface self check, and the result is in order to the bus communication inquiry of next system cycle;
5) bus controller and each remote node are carried out top 2) to 4) operation.
Be trace routine completion to detecting certainly of device control network: fault detection program is embedded in the system program through on the bus network controller, moving; Adopt the operation of fixing bus scheduling frequency with system program, be about to bus line command and break into data packet and on bus, send with certain cycle frequency; The beginning of each program loop all will be inquired the remote node communications status, and the end in each cycle all requires the current communications status of remote node self check, and stores this information in order to inquiry next time, thereby detects performance period.
Be trace routine completion to detecting certainly of each node of network through moving on each microprocessor node:
The microprocessor trace routine is embedded in the control program of microprocessing unit equally; Little processing and detecting is programmed to a counting machine that constantly adds up; Counter values can be running in the watchdog routine of bus controller and inquire about periodically; If the counter values that inquires constantly adds up, just explain that each microprocessor node is in proper working order; If counter values is constant or variation abnormality, explain that then the work of microprocessor node has fault;
When bus network and modal processor state all just often, carry out equipment periodic again from detecting, test so by different level and realized cycle self-checking function whole vehicular electrical equipment.
Wherein, step 1) gate time interval is less than the minimum cycle of run of system program on the bus controller.
Vehicle arrangement control bus network program flow process is as shown in Figure 2.
The method of present embodiment is applied concrete steps in the power sourced electric management system of certain model project based on total line control:
(1) certain model project is as shown in Figure 3 based on the power sourced electric management system bus network of total line control; Bus network is the MIC bus; Be fixing main control end formula bus architecture; The chassis electronics package is the MIC bus controller, and node has power-supply controller of electric (address is 7, realizes generating and takes out the dirt detection), (address is 11 to electrical equipment Comprehensive Control box; Realize that starting, battery tension detect, oil mass detects), gun commander's load control capsule (address is 8), vehicle commander's load control capsule (address is 9), chassis load control capsule distribution state of a controls such as (detect) address are the connection, disconnection, overcurrent, the short circuit that realize loads of 10,8,9,10 3 control capsulees, open circuit.
The treater of (2) five nodes is Infineon's microprocessor; All be provided with the counting machine monitoring function that adds up; Counter values is put into the data buffer of MIC bus communication interface through dual port RAM; Monitoring bus query node program loop communications status, the modal processor mode of operation of chassis electronics package and the equipment state of being controlled, when detecting when unusual, can real-time prompting or warning; Its cycle is as shown in Figure 2 from detecting the watchdog routine flow process.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: technical personnel is read after the present specification still and can specific embodiments of the invention to be made amendment or be equal to replacement, does not await the reply within the claim protection domain but these modifications or change all break away from application of the present invention.
Claims (5)
1. a vehicular electrical equipment cycle is from the detection method; It is characterized in that said method of inspection comprises respectively to device control network; Certainly the detection of the electrical equipment of being controlled to each node of network treater and to the node of network treater may further comprise the steps:
1) with bus controller and each node energized, the program of each self-operating oneself, the counting machine of node microprocessor begins accumulated counts;
2) the bus controller program is at first inquired the node communication state, through the response message decision node communications status of node, if mal is explained the node communication failure from remote node 1 beginning; If it is normal then carry out following query node counter data; If the data of receiving are identical with the data of receiving last time; Be that counting machine does not have counting to add up, then represent the modal processor possible breakdown, if counting machine adds up normally; Represent that then node communication and microprocessor controllable function are normal, can proceed following operation;
3) modal processor operational vehicle equipment self-inspection measuring program, and testing result is uploaded to bus controller, realize real-time self-checking function to the car load electrical equipment;
4) bus controller requires node to communicate the interface self check, and the result is in order to the bus communication inquiry of next system cycle;
5) bus controller and each remote node are carried out top 2) to 4) operation.
Based on the described cycle of claim 1 from the detection method; It is characterized in that said detecting certainly: fault detection program is embedded in the system program to device control network to accomplishing through the trace routine of on the bus network controller, moving; Adopt the operation of fixing bus scheduling frequency with system program, be about to bus line command and break into packet and on bus, send with certain cycle frequency; The beginning of each program loop all will be inquired the remote node communications status, and the end in each cycle all requires the current communications status of remote node self check, and stores this information in order to inquiry next time, thereby detects performance period.
3. the cycle according to claim 1 is characterized in that said detecting certainly to accomplishing through the trace routine of moving on each microprocessor node to each node of network from the detection method:
The microprocessor trace routine is embedded in the control program of microprocessing unit equally; The microprocessor trace routine is designed to a counting machine that constantly adds up; Counter values can be running in the watchdog routine of bus controller and inquire about periodically; If the counter values that inquires constantly adds up, just explain that each microprocessor node is in proper working order; If counter values is constant or variation abnormality, explain that then the work of microprocessor node has fault;
4. the cycle according to claim 1 is from the detection method; It is characterized in that working as bus network and modal processor state all just often; Carry out equipment periodic again from detecting, test has realized the real-time period self-checking function to whole vehicular electrical equipment so by different level.
5. the cycle according to claim 1 is characterized in that the minimum cycle of run of step 1) gate time interval less than system program on the bus controller from the detection method.
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| CN201010559624.9A CN102476616B (en) | 2010-11-26 | 2010-11-26 | Periodic self-detection method for electric equipment of vehicle |
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| CN201010559624.9A CN102476616B (en) | 2010-11-26 | 2010-11-26 | Periodic self-detection method for electric equipment of vehicle |
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| CN103112361A (en) * | 2013-03-08 | 2013-05-22 | 苏州恒知传感科技有限公司 | Automobile battery used as sensing node and electric automobile provided with the same |
| CN103412555A (en) * | 2013-07-01 | 2013-11-27 | 奇瑞汽车股份有限公司 | Fault diagnosis method of electric vehicle controller chip |
| CN103577296A (en) * | 2013-11-21 | 2014-02-12 | 中国科学院深圳先进技术研究院 | Bus reliability testing method and system |
| CN108153273A (en) * | 2016-12-02 | 2018-06-12 | 上海汽车集团股份有限公司 | Signals of vehicles failure of removal diagnostic method and entire car controller |
| CN109683596A (en) * | 2019-03-04 | 2019-04-26 | 内蒙古一机集团宏远电器股份有限公司 | A kind of cab signal collector detection device |
| CN109709941A (en) * | 2019-03-04 | 2019-05-03 | 内蒙古一机集团宏远电器股份有限公司 | A kind of vehicle-mounted pumping dirt signal box detection device |
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| CN103112361A (en) * | 2013-03-08 | 2013-05-22 | 苏州恒知传感科技有限公司 | Automobile battery used as sensing node and electric automobile provided with the same |
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| CN103577296B (en) * | 2013-11-21 | 2015-03-25 | 中国科学院深圳先进技术研究院 | Bus reliability testing method and system |
| CN108153273A (en) * | 2016-12-02 | 2018-06-12 | 上海汽车集团股份有限公司 | Signals of vehicles failure of removal diagnostic method and entire car controller |
| CN109683596A (en) * | 2019-03-04 | 2019-04-26 | 内蒙古一机集团宏远电器股份有限公司 | A kind of cab signal collector detection device |
| CN109709941A (en) * | 2019-03-04 | 2019-05-03 | 内蒙古一机集团宏远电器股份有限公司 | A kind of vehicle-mounted pumping dirt signal box detection device |
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