CN105128783B - A kind of distributed energy of electric automobile regulates and controls method - Google Patents

A kind of distributed energy of electric automobile regulates and controls method Download PDF

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Publication number
CN105128783B
CN105128783B CN201510605599.6A CN201510605599A CN105128783B CN 105128783 B CN105128783 B CN 105128783B CN 201510605599 A CN201510605599 A CN 201510605599A CN 105128783 B CN105128783 B CN 105128783B
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China
Prior art keywords
controller
accumulator
electric automobile
vehicle
regulates
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Expired - Fee Related
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CN201510605599.6A
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Chinese (zh)
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CN105128783A (en
Inventor
徐振环
詹德凯
赵德华
李洪雷
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Brilliance Auto Group Holding Co Ltd
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Brilliance Auto Group Holding Co Ltd
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Priority to CN201510605599.6A priority Critical patent/CN105128783B/en
Publication of CN105128783A publication Critical patent/CN105128783A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Charge By Means Of Generators (AREA)

Abstract

A kind of distributed energy of electric automobile regulates and controls method, belongs to energy of electric automobile control technology field.Static electric energy is adjusted:When vehicle is in standing, the controller for meeting condition is introduced into into one-level sleep state, if being not detected by message information within a certain period of time, then order into the dormant controller of one-level and enter back into two grades of sleep states, accumulator can close the power supply of related load according to the different conditions of Current vehicle, make associated control element enter park mode, reduce quiescent current, improve time of repose.Dynamic electric energy during automobilism is adjusted, battery condition is detected, if accumulator is detected in negative balance state, collection vehicle real-time status data, compare with the threshold value of setting, the electrical equipment for being unsatisfactory for given threshold is closed, keep electromotor to be continuously storage battery power supply.This mode controls electric energy outut device and negative balance can not occurs with the electric energy of electrical appliance load consumption, it is ensured that accumulator is not in feed phenomenon.

Description

A kind of distributed energy of electric automobile regulates and controls method
Technical field
The invention belongs to energy of electric automobile control technology field, more particularly to a kind of distributed energy of electric automobile regulation and control method.
Background technology
To meet driver to vehicle safety and the higher and higher requirement of comfortableness, Hyundai Motor increased many human nature The function of change is such as:Lane departure warning, night vision system, collision recognition, the early warning of lane change blind area, mobile object/pedestrian detection early warning, Full-view camera, adaptive cruise, ventilated seating, massage, memory, multi-region air-conditioning, knee air bag, automated parking system etc..It is real Existing above-mentioned functions need to increase the electricity such as many sensors, controller and powerful executor on the basis of entire automobile electric system Gas is loaded, and general car load only has accumulator and electromotor provide limited electricity output, to make finished vehicle electronic be electrically System normal work, needs to design a kind of high reliability, inexpensive control method to ensure automobile electricity under various driving cycles The effectively utilizes and the balance between output and consumption of energy.
The electric energy management method of domestic automobile is one newly developed individually control typically using centralized control at present Unit is specifically used to monitor the current working condition of accumulator and electromotor, and then analyzing and processing is realized information alert early warning, stored The functions such as the working condition of the related high power load of the charge and discharge control of battery, the output power of electromotor and regulation. The advantage of this method is that intelligence degree is higher, it is possible to achieve complicated control strategy and because be single zero Part, facilitates the design of car load electrical equipment Integrated Solution, but the method has certain limitation i.e. relatively costly, can only typically answer In high-grade car, simultaneously because the extremely complex property of control unit in house software the characteristics of function centralized Control, is determined, its Larger to entire automobile electric system function effect during failure, risk is higher.
The content of the invention
For the problem that prior art is present, the present invention proposes that a kind of distributed energy of electric automobile regulates and controls method.
The technical solution adopted in the present invention is:A kind of distributed energy of electric automobile regulates and controls method, is characterized in that:
When vehicle is in standing, in when closing gear, each controller detection on vehicle is connected ignition switch with itself Whether electrical equipment closes, if closing, order meets the controller of condition and enters one-level sleep state;Respectively sleep into one-level The controller of state is persistently detected to bus, if being not detected by message information within a certain period of time, order enters one-level Dormant controller enters two grades of sleep states;
When automobile is in driving condition, battery condition is detected, if accumulator is detected in negative balance state, collection Vehicle real-time status data, is compared with the threshold value of setting, and the electrical equipment for being unsatisfactory for given threshold is closed, and keeps electromotor to hold Continue for storage battery power supply.
After each controller enters one-level sleep state, each controller is first according to certain order transmission broadcast and notifies which He has been in one-level sleep state by controller itself, when the message that last controller sends is detected by first controller Afterwards, it was demonstrated that all of controller has been enter into one-level sleep state.
Message information is detected once into two grades of dormant controllers in CAN, then all of controller It is waken up.
Vehicle if vehicle occurs and cannot start after placing, detected by 2 kinds of modes:One kind is to judge whether exception Wake source prevents vehicle from entering sleep state;Another kind is to judge whether that exception control device wakes up vehicle;After detection terminates, Failure code sign failure cause is set.
The real-time status data of collection includes the supply voltage signal and voltage-duration signal of controller end, speed letter Number, engine rotational speed signal and battery outer ambient temperature signal.
Using the battery outer ambient temperature signal for collecting, in electromotor in the charging process of accumulator, according to The temperature-voltage curve of accumulator self-characteristic, adjusts the charging voltage of accumulator, changes the rotating speed and output of electromotor And then the electric energy distribution of regulator generator.
Engine speed is compared with the rotary speed threshold value of setting, is allowed when electromotor is more than a certain rotary speed threshold value high-power negative Carry and start, related load is closed when electromotor is less than a certain rotary speed threshold value.
Correspondence DTC is stored after controller identifies itself in under-voltage or overvoltage condition and is sent to by bus Information display unit, gives driver information.
Advantages of the present invention and beneficial effect are:The distributed energy of electric automobile regulates and controls method, and static electric energy is adjusted Section:When vehicle is in standing, the controller for meeting condition is introduced into into one-level sleep state, if being not detected by within a certain period of time Message information, then order into the dormant controller of one-level and enter back into two grades of sleep states, this static electric energy manager Formula, it is ensured that after automobile long-time is placed, can successfully start up.Whole process is only supplied using accumulator, according to current vehicle Different conditions close related load power supply, with season associated control element enter park mode so that quiescent current Reduce, improve time of repose.Dynamic electric energy during automobilism is adjusted, battery condition is detected, if detecting accumulator In negative balance state, collection vehicle real-time status data, compare with the threshold value of setting, the electricity consumption for being unsatisfactory for given threshold is set It is standby to close, keep electromotor to be continuously storage battery power supply.This mode controls electric energy outut device with electrical appliance load consumption Can not there is negative balance in electric energy, it is ensured that accumulator is not in feed phenomenon.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment The accompanying drawing that needs are used is briefly described, it should be apparent that, drawings in the following description are only some enforcements of the present invention Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings Other accompanying drawings.
Fig. 1 regulates and controls method flow diagram for distributed energy of electric automobile provided in an embodiment of the present invention.
Specific embodiment
Understandable to enable the above objects, features and advantages of the present invention to become apparent from, 1 is real with concrete below in conjunction with the accompanying drawings The present invention is further detailed explanation to apply mode.
A kind of distributed energy of electric automobile regulates and controls method, comprises the steps:
Step 1, when vehicle in stand when, ignition switch in when closing gear, on vehicle the detection of each controller with from Whether the electrical equipment of body connection closes, if closing, order meets the controller of condition and enters one-level sleep state, each to enter The dormant controller of one-level is persistently detected to bus, if being not detected by message information within a certain period of time, is ordered Two grades of sleep states are entered into the dormant controller of one-level.
After each controller enters one-level sleep state, each controller be first according to certain order (this sequentially by user voluntarily Definition, according to number order of the memorizer in internal memory, the topological structure of the controller in the present embodiment can be:First control Device sends messages to second controller, the like, last controller turns after receiving the message of a controller Issue first controller) send broadcast and notify other controllers itself in one-level sleep state, when last After the message that controller sends is detected by first controller, it was demonstrated that all of controller has been enter into one-level sleep state. Now the power consumption of control unit will reduce one-level, and then in setting time, (time is voluntarily carried out each controller by user Setting) in can monitor Related arousal source, if during this period of time vehicle-state does not have any change, each controller can enter the Two grades of sleep states are ECU sleeps, and the quiescent current of each controller is down to minimum this moment, can reach a microampere rank.Now car Completely into sleep state, car load quiescent current will drop to minimum.At this moment controller may proceed to monitor whole vehicle state, work as identification Going out driver has vehicle using (i.e. wake source) is intended to, and wakes up all controllers by bus, recovers the normal electric breathing exercise of car load Energy.Wake source in the present embodiment include ignition switch gear signal, GES, car door whether be opened or closed signal, Whether central controlled lock switch is pressed etc..
Car load quiescent current cross conference cause vehicle occur the short time park after the phenomenon that can not start, generally result in this The reason for situation occurs has two kinds, and the first is there is abnormal wake source to prevent vehicle from entering sleep state;Second is exist Exception control device wakes up vehicle.Can be recognized by OSEK Network Management Functions in the present embodiment and record above-mentioned reason.If In 15 minutes after OFF gears, controller was not received by the sleep prompting position of some other controllers to ignition switch, then exist Correspondence controller failure identifier is recorded in internal storage region and shows that there is abnormal wake source prevents vehicle from entering sleep.Work as a little Fire switch is in OFF gears and controller is sent in 10 seconds after sleep confirms order, and controller monitors to go out in bus again Existing message then internally records the corresponding identifier of this failure in memory block, to show to have abnormal wake source to occur.In controller The DTC of storage can be read by vehicle diagnostics interface using diagnostic device, cause vehicle quiescent current for analyzing exclusion Excessive failure.
Step 102, when automobile is in driving condition, detects battery condition, if detecting accumulator in negative balance State, collection vehicle real-time status data are compared with the threshold value of setting, the electrical equipment for being unsatisfactory for given threshold is closed, is protected Hold electromotor and be continuously storage battery power supply.
The real-time status data of collection includes the supply voltage signal and voltage-duration signal of controller end, speed letter Number, engine rotational speed signal and battery outer ambient temperature signal.
The entry condition of each controller is set:When electromotor be more than a certain rotating speed when allow high power load start, when send out Motivation closes related load when being less than a certain rotating speed, compares by collection engine rotational speed signal and with entry condition, when satisfaction is opened Dynamic condition, it is allowed to open, otherwise, closes.For example:Controller can receive high power load by CAN/LIN buses(Refer to which certainly Body can cause vehicle voltage to fluctuate when being turned on and off, that is, the appreciable phenomenon of driver such as in-car lights dim/change occur Amount, audible sound become the load of big/situation such as diminish)Such as electronic rear Defrost heater, headlight, air conditioner blower, rain shaving electrical machine Working condition and generation current machine information on load etc..
For example, when electrical equipment is loaded for rear defrosting electrical heating, controller can judge engine revolution, carry out threshold value point Analysis, for example given threshold is:Revolution defrosting electrical heating load after more than 600rpm startups, revolution are removed after 500rpm is then closed White electrical heating load.Detection engine revolution, after engine revolution reaches 600rpm, the heating that can just defrost after allowing is opened; Defrost after being automatically switched off after engine revolution drops to 500rpm heating function, prevents accumulator electric-quantity from depleting.
For another example, when electrical equipment is air conditioner blower, controller can be carried out to air conditioner blower with reference to engine condition Control.Controller can receive engine rotational speed signal from bus, when judging that electromotor does not work, maximum only to allow Aerator halfload works;When judging at electromotor in the running, can just allow the aerator can be with full load operation.Starting When machine operates, controller when generator load is higher, can equally reduce drum if it is judged that Current vehicle electrical appliance power consumption is larger The rotating speed of blower fan, so as to the situation generation for ensureing to be not in accumulator feeding.
Using the battery outer ambient temperature signal for collecting, in electromotor in the charging process of accumulator, improve Or the rotating speed of reduction present engine, the electric energy distribution of each electrical appliance is adjusted by the output of regulator generator, for example, When controller detects ambient temperature at -20 DEG C, according to the pressure-temperature curve of accumulator self-characteristic, adjust and store The charging voltage of battery is 14.8V;And ambient temperature is at 40 DEG C, the charging voltage for adjusting accumulator is 14V, the method The service life of accumulator can effectively be extended, while oil consumption can be reduced.
Correspondence DTC is stored after controller identifies itself in under-voltage or overvoltage condition and is sent to by bus Information display unit, gives driver information.
Above the present invention is described in detail, principle and embodiment party of the specific case used herein to the present invention Formula is set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept;Meanwhile, it is right In one of ordinary skill in the art, according to the thought of the present invention, change is had in specific embodiments and applications Part, in sum, this specification content should not be construed as limiting the invention.

Claims (8)

1. a kind of distributed energy of electric automobile regulates and controls method, including following process:When vehicle is in standing, ignition switch is in When closing gear, whether the electrical equipment that each controller detection is connected with itself on vehicle closes, if closing, order meets bar The controller of part enters one-level sleep state;
It is characterized in that:Also include procedure below:
Respectively persistently bus is detected into the dormant controller of one-level, if being not detected by message letter within a certain period of time Breath, then order enter two grades of sleep states into the dormant controller of one-level;
When automobile is in driving condition, battery condition is detected, if accumulator is detected in negative balance state, collection vehicle Real-time status data, is compared with the threshold value of setting, and the electrical equipment for being unsatisfactory for given threshold is closed, and keeps electromotor to be continuously Storage battery power supply.
2. distributed energy of electric automobile as claimed in claim 1 regulates and controls method, it is characterised in that:Each controller is slept into one-level After dormancy state, each controller is first according to certain order transmission broadcast and notifies that other controllers itself are slept in one-level State, after the message that the minimum controller of priority sends is detected by the controller of highest priority, it was demonstrated that all of control Device processed has been enter into one-level sleep state.
3. distributed energy of electric automobile as claimed in claim 1 regulates and controls method, it is characterised in that:It is dormant into two grades Once detecting message information in CAN, then all of controller is waken up controller.
4. distributed energy of electric automobile as claimed in claim 3 regulates and controls method, it is characterised in that:If there is car after placing in vehicle When cannot start, detected by 2 kinds of modes:One kind is to judge whether that abnormal wake source prevents vehicle from entering sleep shape State;Another kind is to judge whether that exception control device wakes up vehicle;After detection terminates, it is former that failure code sign failure is set Cause.
5. distributed energy of electric automobile as claimed in claim 1 regulates and controls method, it is characterised in that:The real-time status data of collection Including the supply voltage signal and voltage-duration signal, GES, engine rotational speed signal and accumulator of controller end Ambient temperature signal.
6. distributed energy of electric automobile as claimed in claim 5 regulates and controls method, it is characterised in that:Using the accumulator for collecting Ambient temperature signal, it is in electromotor in the charging process of accumulator, bent according to the temperature-voltage of accumulator self-characteristic Line, adjusts the charging voltage of accumulator, changes the electric energy distribution of the rotating speed and output and then regulator generator of electromotor.
7. distributed energy of electric automobile as claimed in claim 1 regulates and controls method, it is characterised in that:Engine speed and setting Rotary speed threshold value compares, and allows high power load to start when electromotor is more than a certain rotary speed threshold value, when electromotor is less than a certain turn Related load is closed during fast threshold value.
8. distributed energy of electric automobile as claimed in claim 1 regulates and controls method, it is characterised in that:When controller identifies itself After under-voltage or overvoltage condition, storage correspondence DTC is simultaneously sent to information display by bus, gives driver prompting Information.
CN201510605599.6A 2015-09-22 2015-09-22 A kind of distributed energy of electric automobile regulates and controls method Expired - Fee Related CN105128783B (en)

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CN107628017B (en) * 2017-08-30 2019-10-18 北京新能源汽车股份有限公司 Vacuum pump control method and device for electric automobile, controller and automobile
CN109720282A (en) * 2017-10-31 2019-05-07 华晨汽车集团控股有限公司 A kind of remotely monitoring accumulator electric-quantity and charging method
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CN110320840B (en) * 2019-07-11 2021-06-22 四川长虹网络科技有限责任公司 Method and system capable of reducing power consumption of Internet of things product battery
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CN113173176B (en) * 2021-04-09 2023-01-06 武汉路特斯汽车有限公司 Method, device, system and terminal for processing quiescent current data of whole vehicle
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