CN110300041A - Cloud-based remote maintenance method for automobile electronic control unit - Google Patents
Cloud-based remote maintenance method for automobile electronic control unit Download PDFInfo
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- CN110300041A CN110300041A CN201910586597.5A CN201910586597A CN110300041A CN 110300041 A CN110300041 A CN 110300041A CN 201910586597 A CN201910586597 A CN 201910586597A CN 110300041 A CN110300041 A CN 110300041A
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- electronic control
- control unit
- vehicle
- vehicle electronic
- automobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the field of automobile control, in particular to a remote maintenance method of an automobile electronic control unit based on a cloud end, which comprises the following steps: 1) the cloud end establishes an automobile electronic control unit database; 2) when the automobile runs, the automobile electronic control unit acquires the running data of the automobile through a sensor; 3) the vehicle-mounted T-BOX reads the running data stored in the vehicle electronic control unit and uploads the running data to the vehicle electronic control unit database at the cloud end; 4) the manufacturer of the automobile electronic control unit calculates to obtain the calibration parameters matched with the optimal performance of the automobile; 5) a manufacturer of the automobile electronic control unit uploads the calibration parameters to an automobile electronic control unit database at the cloud end for storage; 6) and after receiving the parameter modification instruction sent by the cloud end, the vehicle-mounted T-BOX of the vehicle receives the calibration parameters of the manufacturer of the automobile electronic control unit, covers the former parameters of the automobile electronic control unit and adjusts the automobile to the optimal performance matching state.
Description
Technical field
The present invention relates to field of automobile control, and in particular to a kind of the long-range of vehicle electronic control unit based on cloud
Maintaining method.
Background technique
Vehicle electronic control unit (referred to as " ECU ") is function element particularly important on automobile, and all automobiles are dispatching from the factory
Before require to carry out the parameter calibration of ECU, the matching of each link for enabling ECU to control reaches optimum performance.At present to ECU's
Parameter calibration is usually that the vehicle that will be dispatched from the factory is sent to the parameter calibration that ECU manufacturer carries out ECU, mark by Railway Car Plant
It dispatches from the factory again after fixed, causes vehicle transportation cost higher.Once vehicle send break down on the way, can not on-call maintenance,
The calibration operation for influencing fault car, it cannot be guaranteed that the progress working properly of the parameter calibration of vehicle ECU.
On the other hand, vehicle is not all detected there may be ECU manufacturer yet in development phase and car owner's service stage
Vehicle, to correct these problems, need to be returned to Railway Car Plant's progress once these problems cause vehicle to break down by problem
Maintenance or Railway Car Plant and ECU manufacturer send someone to go on business to scene and repair, and maintenance cost greatly improves.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of vehicle electronic control units based on cloud
Long-distance maintenance method, give vehicle performance data remote transmission to ECU manufacturer by cloud, ECU manufacturer is according to cloud
Vehicle performance data calculate the calibrating parameters of the optimum performance of the vehicle, and are back to automobile, make the automotive electronics of the vehicle
Automobile is adjusted to optimum performance state according to the calibrating parameters of the calculated optimum performance of ECU manufacturer by control unit, significantly
While reducing transportation cost, it ensure that the stability of ECU staking-out work, automobile be maintained at optimal performance state.
The object of the present invention is achieved like this: a kind of remote maintenance side of the vehicle electronic control unit based on cloud
Method, comprising the following steps:
1) vehicle electronic control unit database is established in cloud, for storing calibrating parameters and the acquisition of vehicle electronic control unit
Operation data；
2) when automobilism, vehicle electronic control unit acquires the operation data of automobile by sensor, and stores operation data；
3) vehicle-mounted T-BOX reads the operation data of vehicle electronic control unit storage, and is uploaded to the Vehicle Electronic Control in cloud
Cell data library；
4) manufacturer of vehicle electronic control unit is according to the automobile of the vehicle in the vehicle electronic control unit database in cloud
The operation data of electronic control unit is calculated, and obtains the matched calibrating parameters of the optimum performance of the vehicle；
5) calibrating parameters are uploaded to the vehicle electronic control unit data inventory in cloud by the manufacturer of vehicle electronic control unit
Storage, and the instruction for modifying parameter is issued by vehicle electronic control unit of the cloud to the vehicle；
6) the vehicle-mounted T-BOX of vehicle receive cloud sending modification parameter instruction after, receive the system of vehicle electronic control unit
Make the calibrating parameters of quotient；Then the calibrating parameters received are stored to vehicle electronic control unit, and covers automotive electronics control
The pervious parameter of unit processed, is adjusted to optimum performance matching status for automobile, realizes remote maintenance to vehicle electronic control unit.
Vehicle-mounted T-BOX in the step 3) transmits data by CAN bus and vehicle electronic control unit.
Vehicle-mounted T-BOX in the step 3) transmits data by bluetooth and vehicle electronic control unit.
Vehicle electronic control unit in the step 6) is calculated according to the manufacturer of vehicle electronic control unit
Calibrating parameters issue control signal and the vehicle are adjusted to optimum performance matching status to the various actuators of automobile.
Using the above scheme, after establishing vehicle electronic control unit database beyond the clouds, when automobilism, automotive electronics control
After unit processed acquires the operation data of automobile by sensor, Vehicle Electronic Control is read using CAN bus by vehicle-mounted T-BOX
The operation data of unit storage, and vehicle-mounted T-BOX is the vehicle electronic control unit data that cloud is uploaded to by wireless network
Library；Operation data collected includes water tank temperature, air themperature, air quality, excess air coefficient in exhaust gas etc..
The manufacturer of vehicle electronic control unit is according to the vapour of the vehicle in the vehicle electronic control unit database in cloud
The operation data of vehicle electronic control unit is calculated, and obtains the matched calibrating parameters of the optimum performance of the vehicle；Automotive electronics
Calibrating parameters are uploaded to the vehicle electronic control unit database purchase in cloud by the manufacturer of control unit, and pass through cloud pair
The vehicle electronic control unit of the vehicle issues the instruction of modification parameter；The vehicle-mounted T-BOX of vehicle receives the modification of cloud sending
After the instruction of parameter, the calibrating parameters of the manufacturer of vehicle electronic control unit are received；Then the calibrating parameters received are deposited
To vehicle electronic control unit, and after covering the pervious parameter of vehicle electronic control unit, vehicle electronic control unit is issued for storage
It controls signal and automobile is adjusted to optimum performance matching status to the various actuators of automobile, vehicle electronic control unit is realized
Remote maintenance, actuator include canister solenoid valve, atomizer, ignition coil etc..
So when the vehicle that will be dispatched from the factory is sent to the parameter calibration of ECU manufacturer progress ECU by Railway Car Plant,
Vehicle electronic control unit is remotely demarcated by this method, greatly reduces vehicle transportation cost, even if vehicle is being sent out
It send and breaks down on the way, will not too influence the calibration operation of fault car, can guarantee the parameter calibration work of vehicle ECU just
Often carry out.
On the other hand, vehicle is in development phase and car owner's service stage, even if there are what ECU manufacturer did not detected yet to ask
Topic causes vehicle to break down, and can also carry out remote maintenance to fault car in time by this method, make fault car without hair
Railway Car Plant and ECU manufacturer are gone back to, appointing can so debug, and engine is made to reach the feasible rated power of science and output
Torque, while specific fuel consumption is reduced as much as possible, to reduce maintenance cost.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
As shown in Figure 1, a kind of long-distance maintenance method of the vehicle electronic control unit based on cloud, comprising the following steps:
1) vehicle electronic control unit database is established in cloud, for storing calibrating parameters and the acquisition of vehicle electronic control unit
Operation data；
2) when automobilism, vehicle electronic control unit acquires the operation data of automobile by sensor, and stores operation data；
3) vehicle-mounted T-BOX reads the operation data of vehicle electronic control unit storage, and is uploaded to the Vehicle Electronic Control in cloud
Cell data library, vehicle-mounted T-BOX transmits data by CAN bus and vehicle electronic control unit, or passes through bluetooth and automobile
Electronic control unit transmits data.
4) manufacturer of vehicle electronic control unit is according to the vehicle in the vehicle electronic control unit database in cloud
The operation data of vehicle electronic control unit is calculated, and obtains the matched calibrating parameters of the optimum performance of the vehicle, specific
Matching process is as follows:
1. demarcating the end of injection time: using the hydrocarbon emission content in tail gas as index, when determining most suitable end of injection
Between.
2. demarcating load model: accurately judging that the amount of fresh air into cylinder.
3. demarcating distributive value: amendment air-fuel ratio.
4. demarcating ignition advance angle: in different revolving speed and load point, finding under the premise of pinking does not occur makes to export
The maximum ignition advance angle of torque.
5. knock control matches:
The signal of detonation sensor is input to vehicle electronic control unit, amplifies by signal, bandpass filtering, rectification, integral etc.
A series of processing, last integrated signal are used by vehicle electronic control unit to determine whether pinking occurs, by postponing igniting
Advance angle avoids that pinking occurs.
6. hot vehicle Performance Match:
To prevent fuel-steam from polluting from fuel tank evolution, canister is set there are enough ventilations, in different operating points, setting
The canister opening time is modified distributive value by controlling feedback control.
Guarantee that ternary catalyzing unit has highest catalytic conversion efficiency, compensates the dynamic deflection of mixture strength.And oxygen is passed
Sensor carries out computer heating control, prevents oxygen sensor ceramic body from splitting broken.
7. starting idling matching: in impact electric appliance load, when air-conditioning switch and power steer work, not allowing
Now apparent revolving speed concussion and engine shake.Ignition advance angle is not adjusted to maximum, in order to have usually under idle conditions
Certain torque deposit.Shock load maintains idling steady by adjusting ignition advance angle and increasing air inflow.
8. discharge matching: finding the region of three-way catalytic converter optimal conversion efficiency, calibration three-way catalytic converter adds
Heat function allows gaseous mixture in exhaust combustion inner pipe, three-way catalytic converter is allowed to reach as early as possible by postponing ignition advance angle after starting
To operating temperature.
9. driving matches: in order to protect the vehicle components such as engine and tire, by pushing away when close to maximum speed
Lag ignition advance angle and the mode of oil-break limit revolving speed, by adjusting the angle of ignition, steadily increase revolving speed, avoid fluctuating, prevent
Accelerate shake.
10. OBD diagnostic function and monitoring function matching
The hardware of electric-control system is monitored, including the various sensors of monitoring and actuator it is whether faulty, sensor signal
It is whether credible, if to have phenomena such as short circuit, open circuit, be that reasonable breakdown judge valve is arranged in each sensor and actuator
Value, avoids causing engine cisco unity malfunction due to erroneous judgement.
Monitor gas pedal and electronic air throttle body, it is ensured that the signal of gas pedal output faithfully reflects driver's
It is required that then guaranteeing that the requirement of accelerator open degree has been appropriately carried out in electronic air throttle body, must break when signal is insincere
Oil controls the security performance to guarantee vehicle driving.
It is available about air-fuel ratio finally by torque of the measurement in various air-fuel ratios and the various angles of ignition
Efficiency characteristic and efficiency characteristic about the angle of ignition, vehicle electronic control unit can be calculated corresponding air inflow, distributive value
And ignition advance angle.
5) calibrating parameters are uploaded to the vehicle electronic control unit data in cloud by the manufacturer of vehicle electronic control unit
Library storage, and the instruction for modifying parameter is issued by vehicle electronic control unit of the cloud to the vehicle；
6) the vehicle-mounted T-BOX of vehicle receive cloud sending modification parameter instruction after, receive the system of vehicle electronic control unit
Make the calibrating parameters of quotient；Then the calibrating parameters received are stored to vehicle electronic control unit, and covers automotive electronics control
The pervious parameter of unit processed, vehicle electronic control unit are joined according to the calculated calibration of manufacturer of vehicle electronic control unit
Number issues control signal and the vehicle is adjusted to optimum performance matching status to the various actuators of automobile, to Vehicle Electronic Control
Unit realizes remote maintenance.
The optimum performance matching status of automobile exactly controls air inlet, rationally for the automobile that engine is gasoline engine
Port timing, throttle opening, oil spout the optimal air-fuel when best fit state between suitable ignition advance angle,
And different regions air pressure is different, rarefaction of air degree is also different, and amount of fuel required for burning is different, it is necessary to allow control
Device can identify, and be modified by actuator.
By the long-range calibration and maintenance to vehicle electronic control unit, make engine that there is good steady-state performance,
Guarantee that engine operation without pinking, in the case where no overheat, reaches the design power of engine, torque and oil consumption performance, makes to send out
The various electric appliance loads of motivation and vehicle, transmission system, braking system, the co-ordinations such as three-way catalytic converter guarantee to start
Machine all has good starting idling performance, good driver comfort and emission performance under various environment and operating condition,
The perfect matching to onboard diagnostic system simultaneously guarantees that engine and vehicle are attained by set peace in all cases
Entirely, the stringent optimal performance index such as environmental protection and driver comfort, while greatly reducing transportation cost and development cost.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, it is clear that those skilled in the art
Various changes and modifications can be made to the invention by member without departing from the spirit and scope of the present invention.If in this way, of the invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to encompass these to these modifications and variations
Including modification and variation.
Claims (4)
1. a kind of long-distance maintenance method of the vehicle electronic control unit based on cloud, which comprises the following steps:
1) vehicle electronic control unit database is established in cloud, for storing calibrating parameters and the acquisition of vehicle electronic control unit
Operation data；
2) when automobilism, vehicle electronic control unit acquires the operation data of automobile by sensor, and stores operation data；
3) vehicle-mounted T-BOX reads the operation data of vehicle electronic control unit storage, and is uploaded to the Vehicle Electronic Control in cloud
Cell data library；
4) manufacturer of vehicle electronic control unit is according to the automobile of the vehicle in the vehicle electronic control unit database in cloud
The operation data of electronic control unit is calculated, and obtains the matched calibrating parameters of the optimum performance of the vehicle；
5) calibrating parameters are uploaded to the vehicle electronic control unit data inventory in cloud by the manufacturer of vehicle electronic control unit
Storage, and the instruction for modifying parameter is issued by vehicle electronic control unit of the cloud to the vehicle；
6) the vehicle-mounted T-BOX of vehicle receive cloud sending modification parameter instruction after, receive the system of vehicle electronic control unit
Make the calibrating parameters of quotient；Then the calibrating parameters received are stored to vehicle electronic control unit, and covers automotive electronics control
The pervious parameter of unit processed, is adjusted to optimum performance matching status for automobile, realizes remote maintenance to vehicle electronic control unit.
2. according to the method described in claim 1, it is characterized by: the vehicle-mounted T-BOX in the step 3) passes through CAN bus
Data are transmitted with vehicle electronic control unit.
3. according to the method described in claim 1, it is characterized by: the vehicle-mounted T-BOX in the step 3) passes through bluetooth and vapour
Vehicle electronic control unit transmits data.
4. according to the method described in claim 1, it is characterized by: vehicle electronic control unit in the step 6) according to
The calculated calibrating parameters of the manufacturer of vehicle electronic control unit issue control signal should to the various actuators of automobile
Vehicle is adjusted to optimum performance matching status.
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| CN201910586597.5A CN110300041B (en) | 2019-07-01 | 2019-07-01 | Cloud-based remote maintenance method for automobile electronic control unit |
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| CN201910586597.5A CN110300041B (en) | 2019-07-01 | 2019-07-01 | Cloud-based remote maintenance method for automobile electronic control unit |
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| CN110300041B CN110300041B (en) | 2022-05-13 |
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Cited By (2)
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| CN110824982A (en) * | 2019-10-23 | 2020-02-21 | 武汉光庭信息技术股份有限公司 | ECU remote debugging method, server and storage medium |
| CN110825073A (en) * | 2019-11-29 | 2020-02-21 | 安徽江淮汽车集团股份有限公司 | Engine remote calibration system and method |
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| CN110300041B (en) | 2022-05-13 |
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