CN102848997A - Integrated system for complete automobile and failure handling method of integrated system - Google Patents
Integrated system for complete automobile and failure handling method of integrated system Download PDFInfo
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Abstract
The invention provides an integrated system for a complete automobile, and a failure handling method of the integrated system. The integrated system for the complete automobile comprises microcontrollers and a communication network, wherein the communication network comprises a first CAN (Controller Area Network) bus, a second CAN bus and a third CAN bus. According to the integrated system, the CAN buses adopt three different rates; the CAN buses adopting different rates are accessed according to real-time requirements of the microcontrollers in the complete automobile; and the bus utilization ratio can be increased reasonably while the bus load is reduced. The failure handling method decides whether failures of the microcontrollers are to be reported to a hybrid complete automobile controller according to grades of the failures, so that the load of the hybrid complete automobile controller is reduced, and the response speed of the hybrid complete automobile controller is increased. In addition, the microcontrollers have corresponding failure protection policies for the complete automobile and handle the failures timely, the disadvantage that the complete automobile controller conducts failure protection on the complete automobile is avoided, the complete automobile controller only conducts the failure protection when fatal or serious failures happen, and the safety of the complete automobile is improved.
Description
Technical field
The present invention relates to car load integrated system and fault handling method thereof, be specifically related to a kind of car load integrated system and fault handling method thereof that uses at hybrid vehicle.
Background technology
Along with improving constantly of automotive automation and intelligent requirements; also be on the increase in electric elements and micro-controller system that car load needs; performance to the integrated control of car load has proposed challenge; especially for the burning hot hybrid vehicle of current development, the increase of its new energy resources system has also brought the difficulty of the system integrations such as corresponding control and emergency protection.
At present; for common hybrid vehicle; the integrated major embodiment of its Full Vehicle System is integrated in hybrid power whole vehicle controller (HCU) function; specifically hybrid power whole vehicle controller carries out the computing of all control policies of car load and protection strategy; and other microcontrollers only are the actrs of hybrid power whole vehicle controller instruction by CAN bus or LIN bus and hybrid power whole vehicle controller communication.Therefore, the integrated load that strengthens hybrid power whole vehicle controller of common hybrid vehicle has increased integrated difficulty, and its integrated performance and speed of response are restricted, vehicle under needing catastrophic failure of fast response, some can not in time be responded, the consequence of generation and affect hardly imaginable.
Summary of the invention
In order to overcome the defective that exists in the above-mentioned prior art, first purpose of the present invention provides a kind of car load integrated system, this car load integrated system has reduced the layout of car load wire harness, has strengthened sharing of car load common data, has improved the real-time response ability of each subsystem.
In order to overcome the defective that exists in the above-mentioned prior art, second purpose of the present invention provides a kind of fault handling method of car load integrated system, this fault handling method has alleviated the load of HCU, has improved the speed of response of HCU, can improve the safety of car load.
In order to realize above-mentioned purpose of the present invention, according to a first aspect of the invention, the invention provides a kind of car load integrated system, it comprises hybrid power whole vehicle controller, engine controller, electric machine controller, battery management system, braking and energy-recuperation system, gearbox control, car body controller, electric boosting steering system, instrument controller, direct current transformation voltage stabilizer, battery pack collection plate, fault localization system, centrally controrlled locking system, seat adjustment system and car lamp control system; This car load integrated system also comprises communication network, described communication network comprises that the rate of information throughput is that a CAN bus, the rate of information throughput of first rate is the 2nd CAN bus of the second speed and the 3rd CAN bus that the rate of information throughput is third speed, described first rate is higher than the second speed, described the second speed is higher than third speed, a described CAN bus is connected by the first gateway with the 2nd CAN bus, and described the 2nd CAN bus is connected by the second gateway with the 3rd CAN bus; Described hybrid power whole vehicle controller, driving engine, electric machine controller, battery management system and braking and energy-recuperation system link to each other with a described CAN bus; Described gearbox control, car body controller, electric boosting steering system, instrument controller, direct current transformation voltage stabilizer, battery pack collection plate and fault localization system link to each other with described the 2nd CAN bus; Described centrally controrlled locking system, seat adjustment system and car lamp control system link to each other with described the 3rd CAN bus.
Car load integrated system of the present invention adopts the CAN network, has reduced the layout of car load wire harness, has strengthened sharing of car load common data, has improved the real-time response ability of each subsystem.The CAN bus of communication network of the present invention adopts three kinds of different speed, according to the CAN bus of each microcontroller requirement of real-time access different rates in car load, rationally improves total line use ratio when alleviating bus load.
Car load integrated system clear in structure of the present invention, network hierarchy understand, when car load need to add new node, only need to according to interpolation node requirement of real-time access corresponding network, improve the extensibility of system.
In order to realize above-mentioned purpose of the present invention, according to a second aspect of the invention, the invention provides a kind of fault handling method, it comprises the steps:
S1: the grade under engine controller, electric machine controller, battery management system, braking and energy-recuperation system, gearbox control, car body controller, electric boosting steering system, instrument controller, direct current transformation voltage stabilizer, battery pack collection plate, fault localization system, centrally controrlled locking system, seat adjustment system and car lamp control system detection failure information and the failure judgement, described fault level is divided into fatal, serious, general and slight level Four;
S2: engine controller, electric machine controller, battery management system, braking and energy-recuperation system, gearbox control, car body controller, electric boosting steering system, instrument controller, direct current transformation voltage stabilizer, battery pack collection plate, fault localization system, centrally controrlled locking system, seat adjustment system and car lamp control system are processed fault and failure message are sent to hybrid power whole vehicle controller at fault level when being fatal or serious;
S3: described hybrid power whole vehicle controller cut off driving engine power, show fault, report to the police and failure message is uploaded to communication network by warning device by instrument.
Fault handling method of the present invention determines according to fault level whether each microcontroller reports hybrid power whole vehicle controller with fault, has alleviated the load of hybrid power whole vehicle controller, has improved the speed of response of hybrid power whole vehicle controller.Simultaneously; each microcontroller has the emergency protection strategy of car load corresponding component; can the very first time fault be processed; avoided traditional entire car controller to take on the drawback of complete vehicle fault protection; only when fatal or major failure occurring; hybrid power whole vehicle controller just participates in the redundancy protecting of fault, can improve the safety of car load.
In a kind of preferred implementation in the present invention, described engine controller, electric machine controller, battery management system, braking and energy-recuperation system, gearbox control, car body controller, electric boosting steering system, instrument controller, direct current transformation voltage stabilizer, the battery pack collection plate, fault localization system, centrally controrlled locking system, the step that seat adjustment system and car lamp control system are processed fault is:
S11: failure judgement grade, described fault level are divided into fatal, serious, general and slight level Four;
S12: when fault level when being slight, show fault by instrument;
S13: when fault level when being general, show fault and report to the police by warning device by instrument;
S14: when fault level when being fatal or serious, cut off driving engine power, show fault and report to the police by warning device by instrument;
S15: failure message is uploaded to communication network
Hybrid power whole vehicle controller of the present invention mainly is responsible for power division and car load Security Techniques; and each microcontroller also has the control policy of oneself; compare the load that traditional control method has alleviated hybrid power whole vehicle controller, improved the speed of response of hybrid power whole vehicle controller.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structured flowchart of car load integrated system of the present invention;
Fig. 2 is the diagram of circuit of fault handling method of the present invention;
Fig. 3 is the fault handling flow chart of steps of each microcontroller of the present invention.
Reference numeral:
1 hybrid power whole vehicle controller; 2 engine controllers; 3 electric machine controllers; 4 battery management systems; 5 braking and energy-recuperation systems; 6 gearbox controls; 7 car body controllers; 8 instrument controllers; 9 electric boosting steering systems; 10 direct current transformation voltage stabilizers; 11 battery pack collection plates; 12 fault localization systems; 13 centrally controrlled locking systems; 14 seat adjustment systems; 15 car lamp control systems.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, unless otherwise prescribed and limit, need to prove, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly to link to each other, and also can indirectly link to each other by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The invention provides a kind of car load integrated system, it comprises hybrid power whole vehicle controller 1, engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection plate 11, fault localization system 12, centrally controrlled locking system 13, seat adjustment system 14 and car lamp control system 15, also comprise driving engine, instrument and warning device, this driving engine links to each other with engine controller 2, realized opening or closing by engine controller 2 controls, instrument links to each other with instrument controller 8, by instrument controller 8 controls failure message is shown, warning device can link to each other with alarm controller, also can link to each other with instrument controller 8, by instrument controller 8 controls failure message be reported to the police.
In the present embodiment, hybrid power whole vehicle controller 1, engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection plate 11, fault localization system 12, centrally controrlled locking system 13, seat adjustment system 14 and car lamp control system 15, also comprise driving engine, instrument and warning device all can adopt prior art, they with car load on being connected also of various sensors can adopt prior art, therefore not to repeat here.
This car load integrated system also comprises communication network, this communication network comprises that the rate of information throughput is that a CAN bus, the rate of information throughput of first rate is the 2nd CAN bus of the second speed and the 3rd CAN bus that the rate of information throughput is third speed, wherein, first rate is higher than the second speed, the second speed is higher than third speed, the one CAN bus is connected by the first gateway with the 2nd CAN bus, and the 2nd CAN bus is connected by the second gateway with the 3rd CAN bus.In the present embodiment, hybrid power whole vehicle controller 1, engine controller 2, electric machine controller 3, battery management system 4 and braking and energy-recuperation system 5 link to each other with a CAN bus.Gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection plate 11 and fault localization system 12 link to each other with the 2nd CAN bus; Centrally controrlled locking system 13, seat adjustment system 14 and car lamp control system 15 link to each other with the 3rd CAN bus.When warning device links to each other with alarm controller, alarm controller links to each other with the 2nd CAN bus.
In a kind of preferred enforcement of the present invention, first rate is not less than 500kb/s, is express network, is used for the strict system communication of requirement of real-time; The second speed is 100kb/s-250kb/s, is the middling speed network, is used for the lower system communication of requirement of real-time; Third speed is lower than 100kb/s, and the 3rd CAN bus is the following used slow network of car load annex control of transfer rate 100kb/s, is used for the undemanding system communication of requirement of real-time.
In the present embodiment, the first gateway adopts and is applicable to ISO 11898-1, and the high-speed transceiver of ISO 11898-2 or ISO 11898-3, the second gateway adopt and be applicable to ISO 11898-1, the fault-tolerant transceiver of low speed of ISO 11898-2 or ISO 11898-3.
Each microcontroller of the present invention, it is engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection plate 11, fault localization system 12, centrally controrlled locking system 13, seat adjustment system 14 and car lamp control system 15, adopt the CAN bus of different rates to carry out communication according to the requirement of real-time in Full Vehicle System, and two gateway cross-over connections are high, in, the low speed three-bus is realized information exchange between each node.
In the present embodiment; hybrid power whole vehicle controller 1 main power division and the car load safety guard-safeguard be responsible for; it receives the signals such as pedal, gear, rotating speed, electric weight by sensor and communication network; calculate the car load power demand by predefined control policy; distribute power stage according to driving engine and electric machine operation state and battery status by strategy again; make car load dynamic property and energy consumption all reach optimum state; receive failure message and send the fault handling instruction by bus simultaneously, guarantee car load safety.
Each microcontroller receives respective sensor and receives instruction and signal from hybrid power whole vehicle controller 1 and other microcontrollers by communication network; calculate executive condition and execution and correction by predefined control policy; receive the breakdown signal of corresponding component and carry out fault handling by preseting the emergency protection strategy by sensor simultaneously, guarantee each parts and car load safety.
Security Techniques in this integrated system is considered based on standard " failure mode and the classification of QC/T 34-1992 automobile "; complete vehicle fault is divided into fatal; seriously; generally; slight four ranks; all faults are all processed by corresponding microcontroller protection strategy; when running into fatal and major failure; corresponding microcontroller is pressed the simultaneous communications of emergency protection strategy processing to hybrid power whole vehicle controller 1; hybrid power whole vehicle controller 1 sends instruction with handling failure again by complete vehicle fault protection strategy; so both improved fault instruction redundancy; instant actv. has guaranteed car load safety, has alleviated again the load of hybrid power whole vehicle controller 1 simultaneously.As shown in Figure 2, the fault handling method of car load integrated system of the present invention comprises the steps:
S1: the grade under engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection 11, fault localization system 12, centrally controrlled locking system 13, seat adjustment 14 and car lamp control system 15 detection failure information and the failure judgement, wherein, fault level is divided into fatal, serious, general and slight level Four;
S2: engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack collection 11, fault localization system 12, centrally controrlled locking system 13, seat adjustment 14 and 15 pairs of faults of car lamp control system are processed and failure message are sent to hybrid power whole vehicle controller 1 at fault level when being fatal or serious;
S3: hybrid power whole vehicle controller 1 sends control commands to engine controller 2 and instrument controller 8, cut off driving engine power, show fault, report to the police and failure message is uploaded to communication network by warning device by instrument.
In a kind of preferred implementation of the present invention, engine controller 2, electric machine controller 3, battery management system 4, braking and energy-recuperation system 5, gearbox control 6, car body controller 7, instrument controller 8, electric boosting steering system 9, direct current transformation voltage stabilizer 10, battery pack gathers 11, fault localization system 12, centrally controrlled locking system 13, the step that 15 pairs of faults of seat adjustment 14 and car lamp control system are processed is:
S11: failure judgement grade, fault level are divided into fatal, serious, general and slight level Four;
S12: when fault level when being slight, show fault by instrument;
S13: when fault level when being general, show fault and report to the police by warning device by instrument;
S14: when fault level when being fatal or serious, power, the instrument controller 8 that engine controller 2 cuts off driving engines shows fault by instrument and reports to the police by warning device;
S15: failure message is uploaded to communication network.
In the present embodiment, when fatal or major failure occur when, although engine controller 2 cuts off power, the instrument controller 8 of driving engine and reports to the police by instrument demonstration fault and by warning device, this moment is for safety, hybrid power whole vehicle controller 1 also sends control command to engine controller 2 and instrument controller 8, control cut off driving engine power, show fault, report to the police by warning device by instrument, thereby improved safety.
Each microcontroller of the present invention has own corresponding control policy, to reduce the load of hybrid power whole vehicle controller 1, for guaranteeing that car load reaches safely speed of response, carries out each other exchange and the execution of information and instruction by automobile primary circulation news mode CAN.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (6)
1. a car load integrated system comprises hybrid power whole vehicle controller (1), engine controller (2), electric machine controller (3), battery management system (4), braking and energy-recuperation system (5), gearbox control (6), car body controller (7), instrument controller (8), electric boosting steering system (9), direct current transformation voltage stabilizer (10), battery pack collection plate (11), fault localization system (12), centrally controrlled locking system (13), seat adjustment system (14) and car lamp control system (15);
It is characterized in that: also comprise communication network, described communication network comprises that the rate of information throughput is that a CAN bus, the rate of information throughput of first rate is the 2nd CAN bus of the second speed and the 3rd CAN bus that the rate of information throughput is third speed, described first rate is higher than the second speed, described the second speed is higher than third speed, a described CAN bus is connected by the first gateway with the 2nd CAN bus, and described the 2nd CAN bus is connected by the second gateway with the 3rd CAN bus;
Described hybrid power whole vehicle controller (1), engine controller (2), electric machine controller (3), battery management system (4) and braking and energy-recuperation system (5) link to each other with a described CAN bus;
Described gearbox control (6), car body controller (7), instrument controller (8), electric boosting steering system (9), direct current transformation voltage stabilizer (10), battery pack collection plate (11) and fault localization system (12) link to each other with described the 2nd CAN bus;
Described centrally controrlled locking system (13), seat adjustment system (14) and car lamp control system (15) link to each other with described the 3rd CAN bus.
2. car load integrated system as claimed in claim 1, it is characterized in that: described first rate is not less than 500kb/s.
3. car load integrated system as claimed in claim 1, it is characterized in that: described the second speed is 100kb/s-250kb/s.
4. car load integrated system as claimed in claim 1, it is characterized in that: described third speed is lower than 100kb/s.
5. the fault handling method of the described car load integrated system of claim 1 is characterized in that, comprises the steps:
S1: engine controller (2), electric machine controller (3), battery management system (4), braking and energy-recuperation system (5), gearbox control (6), car body controller (7BCM), instrument controller (8), electric boosting steering system (9), direct current transformation voltage stabilizer (10), battery pack collection plate (11), fault localization system (12), centrally controrlled locking system (13), grade under seat adjustment system (14) and car lamp control system (15) detection failure information and the failure judgement, described fault level is divided into fatal, seriously, general and slight level Four;
S2: engine controller (2), electric machine controller (3), battery management system (4), braking and energy-recuperation system (5), gearbox control (6), car body controller (7BCM), instrument controller (8), electric boosting steering system (9), direct current transformation voltage stabilizer (10), battery pack collection plate (11), fault localization system (12), centrally controrlled locking system (13), seat adjustment system (14) and car lamp control system (15) are processed fault and failure message are sent to hybrid power whole vehicle controller (1) at fault level when being fatal or serious;
S3: described hybrid power whole vehicle controller (1) cut off driving engine power, show fault, report to the police and failure message is uploaded to communication network by warning device by instrument.
6. fault handling method as claimed in claim 5 is characterized in that: described engine controller (2), electric machine controller (3), battery management system (4), braking and energy-recuperation system (5), gearbox control (6), car body controller (7BCM), instrument controller (8), electric boosting steering system (9), direct current transformation voltage stabilizer (10), battery pack collection plate (11), fault localization system (12), centrally controrlled locking system (13), the step that seat adjustment system (14) and car lamp control system (15) are processed fault is:
S11: failure judgement grade, described fault level are divided into fatal, serious, general and slight level Four;
S12: when fault level when being slight, show fault by instrument;
S13: when fault level when being general, show fault and report to the police by warning device by instrument;
S14: when fault level when being fatal or serious, cut off driving engine power, show fault and report to the police by warning device by instrument;
S15: failure message is uploaded to communication network.
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