CN105667337A - Electric automobile as well as power system and control method thereof - Google Patents
Electric automobile as well as power system and control method thereof Download PDFInfo
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- CN105667337A CN105667337A CN201610137895.2A CN201610137895A CN105667337A CN 105667337 A CN105667337 A CN 105667337A CN 201610137895 A CN201610137895 A CN 201610137895A CN 105667337 A CN105667337 A CN 105667337A
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- 238000005183 dynamical system Methods 0.000 claims description 25
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- 235000008434 ginseng Nutrition 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000035772 mutation Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- KXLUWEYBZBGJRZ-POEOZHCLSA-N Canin Chemical compound O([C@H]12)[C@]1([C@](CC[C@H]1C(=C)C(=O)O[C@@H]11)(C)O)[C@@H]1[C@@]1(C)[C@@H]2O1 KXLUWEYBZBGJRZ-POEOZHCLSA-N 0.000 description 1
- GPFVKTQSZOQXLY-UHFFFAOYSA-N Chrysartemin A Natural products CC1(O)C2OC2C34OC3(C)CC5C(CC14)OC(=O)C5=C GPFVKTQSZOQXLY-UHFFFAOYSA-N 0.000 description 1
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- 238000011217 control strategy Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/26—Transition between different drive modes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an electric automobile as well as a power system and control method thereof. The power system comprises a receiver, a motor, a motor controller, a power battery, a battery managing device and an entire vehicle controller, wherein the receiver is used for receiving a mode instruction of a user; the motor controller is connected with the motor, so as to control the motor; the power battery is used for supplying electricity for the motor; the battery managing device is connected with the power battery, so as to obtain status information of the power battery; the entire vehicle controller is connected with the receiver, and separately communicates with the motor controller and the battery managing device, so as to obtain operating parameters of the motor and the status information of the power battery; the entire vehicle controller obtains a target operating mode of the electric automobile according to the mode instruction of the user, and controls the electric automobile to be switched into the target operating mode according to the operation parameters of the motor and the status information of the power battery. The power system disclosed by the invention provides various operating modes for the user, and through regulating and controlling the output characteristics of the power battery, individualized needs of the user are met.
Description
Technical field
The present invention relates to automobile technical field, relate in particular to a kind of electric automobile and dynamical system thereof, control method.
Background technology
New-energy automobile, especially pure electric sedan use battery energy storage, have replaced internal combustion engine drive systems with power drive system,Both maximum characteristic differences are: internal combustion engine drive systems is in life cycle management and in the fuel consume process of single,The dynamic characteristics of engine is substantially constant, damages also less; And power drive system is in the battery life cycle management and singleIn power consumption process, the Energy Output of battery changes greatly, damages also larger. That is to say, engine characteristics beginsEventually substantially constant, and the characteristic of battery in impulse discharge process and whole life cycle all the time in transmuting; And in such changingIn change process, but use the identical control strategy that discharges and recharges, this is irrational.
Electric automobile in correlation technique, does not still provide the function of characteristic fine tuning, even some electric automobiles to electric automobileThere are two grades of electronic speed limit or mechanical speed change, also just carried out simple variation from load one side of motor or machinery and regulated, adjustSave still very rough. Therefore, electric automobile haves much room for improvement.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique. For this reason, one of the present inventionObject is to propose a kind of dynamical system of electric automobile, and this dynamical system provides plurality of operating modes for user, by rightElectrokinetic cell output characteristics regulates and controls, and has met the driving demand of user individual, thereby has promoted user's experience.
Second object of the present invention is to propose a kind of electric automobile.
The 3rd object of the present invention is to propose a kind of control method of electric automobile.
To achieve these goals, the dynamical system of the electric automobile of first aspect present invention embodiment, comprising: receiver,Described receiver is in order to receive user's mode instruction; Motor; Electric machine controller, described electric machine controller and described motor phaseConnect so that described motor is controlled; Electrokinetic cell, described electrokinetic cell is in order to give described motor power supply; Battery manager,Described battery manager and described electrokinetic cell are connected to obtain the status information of described electrokinetic cell; Entire car controller, described inEntire car controller is connected with described receiver, and communicates to obtain with described electric machine controller and described battery manager respectivelyGet the operational factor of described motor and the status information of described electrokinetic cell, described entire car controller is according to described user's patternThe object run pattern of described electric automobile is obtained in instruction, and according to the shape of the operational factor of described motor and described electrokinetic cellDescribed in the control of state information, electric automobile is switched to described object run pattern.
According to the dynamical system of the electric automobile of the embodiment of the present invention, receive user's mode instruction by receiver, car load controlDevice processed obtains the object run pattern of electric automobile according to user's mode instruction, and obtains operational factor and the power electric of motorThe status information in pond, and be switched to target according to the status information control electric automobile of the operational factor of motor and electrokinetic cellOperational mode, this dynamical system provides plurality of operating modes for user, by electrokinetic cell output characteristics is regulated and controled,Meet the driving demand of user individual, thereby promoted user's experience.
In one embodiment of the invention, described object run pattern is battery power pattern, battery long-range pattern or batteryProtected mode.
In one embodiment of the invention, described entire car controller is judging operational factor and the described power electric of described motorThe status information in pond is controlled described electric automobile in parameter area corresponding to described object run pattern time and is switched to described orderMark operational mode.
In one embodiment of the invention, described entire car controller is judging operational factor and the described power electric of described motorThe status information in pond is not in parameter area corresponding to described object run pattern time, in the static rear control of described electric automobileMake described electric automobile and be switched to described object run pattern.
In one embodiment of the invention, in the time that the operational mode of described electric automobile is switched to described battery power pattern,Described in described vehicle control unit controls, the maximum discharge-rate of electrokinetic cell is that the first default discharge-rate, minimum discharge voltage areThe first predeterminated voltage; In the time that the operational mode of described electric automobile is switched to described battery long-range pattern, described entire car controllerThe maximum discharge-rate of controlling described electrokinetic cell is that the second pre-arcing multiplying power, minimum discharge voltage are the second predeterminated voltage, instituteState the optimal economic speed per hour of the corresponding described electric automobile of the second default discharge-rate; When the operational mode of described electric automobile is switchedWhen the described battery protection pattern, the maximum discharge-rate of electrokinetic cell is the 3rd pre-arcing described in described vehicle control unit controlsMultiplying power, minimum discharge voltage are the 3rd predeterminated voltage, wherein, and the described second default discharge-rate and the described the 3rd default electric dischargeMultiplying power is all less than the described first default discharge-rate, and described the first predeterminated voltage and described the second predeterminated voltage are all less than described theThree predeterminated voltages.
In one embodiment of the invention, described receiver is mode selection switch.
To achieve these goals, the electric automobile of second aspect present invention embodiment, comprises first aspect present invention embodimentDynamical system.
According to the electric automobile of the embodiment of the present invention, owing to having there is this dynamical system, for user provides plurality of operating modes,By electrokinetic cell output characteristics is regulated and controled, meet the driving demand of user individual, thereby promoted driving of userSail experience.
To achieve these goals, the control method of the electric automobile of third aspect present invention embodiment, comprises the following steps:Receive user's mode instruction by the receiver of described electric automobile; Obtain described electronic according to described user's mode instructionThe object run pattern of automobile; Obtain the operational factor of motor and the status information of electrokinetic cell of described electric automobile; According toDescribed in the status information control of the operational factor of described motor and described electrokinetic cell, electric automobile is switched to described object run mouldFormula.
According to the control method of the electric automobile of the embodiment of the present invention, receive user's mode instruction, refer to according to user's patternThe object run pattern of electric automobile is obtained in order, and obtains the operational factor of motor and the status information of electrokinetic cell, Yi JigenBe switched to object run pattern according to the operational factor of motor and the status information control electric automobile of electrokinetic cell, the method is for usingFamily provides plurality of operating modes, by electrokinetic cell output characteristics is regulated and controled, has met the driving need of user individualAsk, thereby promoted user's experience.
In one embodiment of the invention, described object run pattern is battery power pattern, battery long-range pattern or batteryProtected mode.
In one embodiment of the invention, described according to the status information of the operational factor of described motor and described electrokinetic cellControl described electric automobile and be switched to described object run pattern, specifically comprise: judge described motor operational factor and described inWhether the status information of electrokinetic cell is in parameter area corresponding to described object run pattern; If so, described in controllingElectric automobile is switched to described object run pattern.
In one embodiment of the invention, also comprise: if the state of the operational factor of described motor and described electrokinetic cellInformation is not in parameter area corresponding to described object run pattern, described electronic in the static rear control of described electric automobileAutomobile is switched to described object run pattern.
In one embodiment of the invention, in the time that the operational mode of described electric automobile is switched to described battery power pattern,The maximum discharge-rate of controlling described electrokinetic cell is the first default discharge-rate, and controls the minimum electric discharge of described electrokinetic cellVoltage is the first predeterminated voltage; In the time that the operational mode of described electric automobile is switched to described battery long-range pattern, described in controlThe maximum discharge-rate of electrokinetic cell is the second pre-arcing multiplying power, and the minimum discharge voltage of controlling described electrokinetic cell is secondPredeterminated voltage, and the optimal economic speed per hour of the corresponding described electric automobile of the described second default discharge-rate; When described electric automobileOperational mode while being switched to described battery protection pattern, the maximum discharge-rate of controlling described electrokinetic cell is the 3rd pre-arcingMultiplying power, and the minimum discharge voltage of controlling described electrokinetic cell is the 3rd predeterminated voltage, wherein, the described second default electric discharge is doublyRate and the described the 3rd default discharge-rate are all less than the described first default discharge-rate, described the first predeterminated voltage and described secondPredeterminated voltage is all less than described the 3rd predeterminated voltage.
Brief description of the drawings
Fig. 1 is the block diagram of the dynamical system of electric automobile according to an embodiment of the invention;
Fig. 2 is the block diagram of electric automobile according to an embodiment of the invention;
Fig. 3 is the flow chart of the control method of electric automobile according to an embodiment of the invention.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein identical from start to finishOr similarly label represents same or similar element or has the element of identical or similar functions. Below by retouching with reference to accompanying drawingThe embodiment stating is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Electric automobile in correlation technique, in the once operation discharge process of electrokinetic cell, the electric discharge that the electric discharge initial stage allows doublyRate is identical with the discharge-rate of electric discharge permission in latter stage, and this is very unreasonable.
Really vehicle user stroke still attempt latter stage need to the early stage identical battery discharge multiplying power property of stroke, reallyBe current demand in fact, but can form larger infringement to battery like this. Part vehicle user is ready to damage battery, is oneselfUsed, also give no cause for much criticism. But for the electric automobile in correlation technique, user does not but have right to choose to select greatlyDischarge-rate meets vehicle power characteristic demand, still selects little discharge-rate to meet the impaired less requirements for life of battery. RightIn user, this selection demand needs, such as in emergency circumstances, and the worried destination of arriving in of user, user is just moreNeed vehicle to there is higher acceleration and max. speed; And no hurry while arriving in destination as user, obviously just more need to comeProtection battery, the acceleration that vehicle is general so and slightly lower max. speed can meet user's requirement; In addition, sometimesStandby family first half term is worried, if the second half time is well-to-do, just no hurry, so just needs one to be needed by dynamic characteristicsAsk the needs that transform to battery protection demand, otherwise some driver behaviors of the second half still likely damage battery, and first half termDynamic characteristics not necessarily meet the demands also.
Again for example, in the time that electrokinetic cell power shortage is more serious, user just need to reduce the output characteristics of electrokinetic cell, to obtain moreMany battery available capacities go to arrive at the destination as far as possible, and protection battery. The user's request of this class is also quite urgent, and only can lean at present driver's accurate operation to accomplish, do not realize automation.
In order to address the above problem, the present invention proposes the control of dynamical system, electric automobile and the electric automobile of middle electric automobileMethod processed. Dynamical system, electric automobile and the electric automobile of the electric automobile of the embodiment of the present invention are described below with reference to the accompanying drawingsControl method.
Fig. 1 is the block diagram of the dynamical system of electric automobile according to an embodiment of the invention. As shown in Figure 1, originallyThe dynamical system 100 of the electric automobile of inventive embodiments, comprising: receiver 10, motor 20, electric machine controller 30,Electrokinetic cell 40 and battery manager 50 and entire car controller 60.
Wherein, receiver 10 is in order to receive user's mode instruction.
In one embodiment of the invention, receiver 10 is mode selection switch.
Particularly, user can select by mode selection switch the target mode of operation of electric automobile.
Electric machine controller 30 is connected that with motor 20 motor 20 is controlled.
Electrokinetic cell 40 is in order to power to motor 20; Battery manager 50 is connected to obtain electrokinetic cell with electrokinetic cell 4040 status information.
Entire car controller 60 is connected with receiver 10, and communicates with electric machine controller 30 and battery manager 50 respectivelyTo obtain the operational factor of motor 20 and the status information of electrokinetic cell 40, entire car controller 60 is according to user's mode instructionObtain the object run pattern of electric automobile, and according to the status information control of the operational factor of motor 20 and electrokinetic cell 40Electric automobile is switched to object run pattern.
In one embodiment of the invention, entire car controller 60 is by communicating by letter to obtain motor 20 with electric machine controller 30Operational factor, as, the operational factor of motor 20 can comprise rotating speed and moment of torsion; Entire car controller 60 by with battery managementDevice 50 communicates by letter to obtain the status information of battery, as, the status information of battery can comprise battery electric weight, discharge current,The information such as voltage, temperature.
In other embodiment of the present invention, entire car controller 60 can also directly communicate and be connected with motor 20,To obtain the information such as the temperature of motor 20, prevent the generation of the situations such as motor 20 excess Temperatures.
In one embodiment of the invention, the object run pattern of electric automobile is battery power pattern, battery long-range patternOr battery protection pattern.
For example, user may have the different demands of driving in the process of steering vehicle, sometimes needs powerful power, hasIn time, need to consume and tries one's best few electric weight and the long as possible distance of travelling, so, user can by mode selection switch select fromOwn desirable operational mode, as, battery power pattern, battery long-range pattern or battery protection pattern.
In one embodiment of the invention, entire car controller 60 is judging the operational factor of motor 20 and electrokinetic cell 40Status information is controlled electric automobile in parameter area corresponding to object run pattern time and is switched to object run pattern.
Particularly, in order to prevent that electric automobile is in the time carrying out operational mode switching, electric automobile generation state mutation is given and is driven bandCome the bad experience of security risk or, entire car controller 60 is receiving after user's mode instruction, obtains the ginseng of electric automobileNumber information, for example, the status information of the operational factor of motor 20 and electrokinetic cell 40, and judge whether these parameter values are locatedIn the corresponding parameter area of object run pattern, if in, control electric automobile and switched by current operational modeTo user-selected object run pattern.
In one embodiment of the invention, entire car controller 60 is judging the operational factor of motor 20 and electrokinetic cell 40Status information not in parameter area corresponding to object run pattern time, is cut at the static rear control electric automobile of electric automobileChange to object run pattern.
Particularly, if entire car controller 60 judge the operational factor of motor 20 and the status information of electrokinetic cell 40 not inIn parameter area corresponding to object run pattern, do not allow electric automobile to be switched to immediately object run pattern, car load controlDevice 60 continues operational factor and the status information of electrokinetic cell 40 and the running status of electric automobile of monitoring motor 20. IfUser's pulling over observing, after electric automobile is static, electric automobile is switched to object run pattern by 60 of entire car controllers, or,Stop if user does not control electric automobile, electric automobile is in traveling process, along with user changing electric automobile operationBecome (for example, having reduced the degree of trampling of trampling accelerating), the status information of the operational factor of motor 20 and electrokinetic cell 40Also can change, fall into order when entire car controller 60 judges the operational factor of motor 20 and the status information of electrokinetic cell 40In mark operational mode corresponding parameter area time, then control electric automobile and switch to object run pattern, thereby ensured rowCar safety and user's driving is experienced.
By way of example, travel under battery power pattern if the electric automobile that user drives is current, user passes through operator schemeElectric automobile is switched to battery long-range pattern by selector switch wish, i.e. object run pattern is battery long-range pattern. For example, electricityThe maximum discharge current that pond dynamic mode allows is 150A, and the maximum discharge current that battery long-range pattern allows is 120A,When user chooses by operator scheme selector switch after battery long-range pattern, entire car controller 60 by with battery manager 50It is 147A that communication gets the current discharge current of electrokinetic cell 40, and the maximum discharge current that battery long-range pattern allowsBe only 120A, so, entire car controller 60 judges that the current status information of electrokinetic cell 40 is not right in object run pattern instituteIn the parameter area of answering, if switch immediately, the discharge current of electrokinetic cell 40 can be undergone mutation, thereby can cause the speed of a motor vehicleSudden change, and then may cause by the generation of the accidents such as car rear-end, so entire car controller 60 is not permitted in this casePermitted electric automobile and be switched to immediately object run pattern.
User can be at suitable section pulling over observing, and after waiting electric automobile to remain static, entire car controller 60 is controlled againElectric automobile is switched to battery long-range pattern, thereby has ensured traffic safety; Or user also can select not stop, andThe operation (for example, having reduced the degree of trampling of trampling accelerating) changing electric automobile, so, electrokinetic cell 40Discharge current also can change thereupon, judges that the status information of electrokinetic cell 40 falls into object run when entire car controller 60In the corresponding parameter area of pattern time, then control electric automobile and switch to object run pattern, thereby ensured operational modeTraffic safety when switching.
In one embodiment of the invention, in the time that the operational mode of electric automobile is switched to battery power pattern, car load controlThe maximum discharge-rate that device 60 is controlled electrokinetic cell 40 is that the first default discharge-rate, minimum discharge voltage are the first default electricityPress; In the time that the operational mode of electric automobile is switched to battery long-range pattern, entire car controller 60 is controlled electrokinetic cell 40Large discharge-rate is that the second pre-arcing multiplying power, minimum discharge voltage are the second predeterminated voltage, the corresponding electricity of the second default discharge-rateThe optimal economic speed per hour of electrical automobile; In the time that the operational mode of electric automobile is switched to battery protection pattern, entire car controller 60 is controlledThe maximum discharge-rate of brake force battery 40 is that the 3rd pre-arcing multiplying power, minimum discharge voltage are the 3rd predeterminated voltage, wherein,The second default discharge-rate and the 3rd default discharge-rate are all less than the first default discharge-rate, the first predeterminated voltage and second pre-If voltage is all less than the 3rd predeterminated voltage.
Particularly, in the maximum discharge-rate allowing in three kinds of operational modes of electric automobile, battery power pattern allowsValue (i.e. the first default discharge-rate) maximum of maximum discharge-rate, thinks that electric automobile provides powerful power; Battery is longThe maximum discharge-rate allowing of journey pattern (i.e. the second default discharge-rate) just in time supports optimal economic speed per hour (withThe little energy consumption corresponding speed per hour of the longest distance of travelling); The minimum discharge voltage allowing in three kinds of operational modes of electric automobileIn, value (i.e. the 3rd predeterminated voltage) maximum of the minimum discharge voltage that battery protection pattern allows, thereby protection power electricPond 40.
When electric automobile is during in battery power pattern, along with user tramples degree intensification to accelerator pedal, control power electricThe discharge-rate in pond 40 increases so that electric automobile speed-raising, in the time that discharge-rate increases to the first default discharge-rate, is not permittedPermitted discharge-rate and continue to increase, to ensure traffic safety.
When electric automobile is during in battery long-range pattern, the discharge-rate of controlling electrokinetic cell 40 is less than or equal to the second default puttingElectricity multiplying power, in the time that electrokinetic cell 40 discharges with the second default discharge-rate, the speed per hour of electric automobile is optimal economic speed per hour, exampleAs, optimal economic speed per hour is 60km/h.
When electric automobile is during in battery protection pattern, the discharge-rate of controlling electrokinetic cell 40 is less than or equal to the 3rd default puttingElectricity multiplying power, and in the time that discharge voltage is less than the 3rd predeterminated voltage, do not allow electrokinetic cell 40 to discharge, to protect electrokinetic cell 40.
The operational mode of the electric automobile in correlation technique is single, easily causes the problem of electrokinetic cell 40 lasting damaged,The electric automobile making has two grades of electronic speed limit or mechanical speed change, has also just carried out letter from load one side of motor 20 or machinerySingle variation regulates, and regulative mode is more rough. And the dynamical system of the electric automobile of the embodiment of the present invention, for user providesThe operational mode of plurality of optional, or tend to powerful, or it is long to tend to mileages of continuation, or tends to batteryProtection, output characteristics that can classification motivation of adjustment battery 40, has been fine to battery side cell tube to the regulation and control of electric automobileThe fine-grained degree of reason, makes user can select suitable operational mode to meet the driving needs of oneself, has both promotedUser experiences, and can protect electrokinetic cell 40 in some cases again.
The dynamical system of the electric automobile of the embodiment of the present invention, receives user's mode instruction, entire car controller by receiverObtain the object run pattern of electric automobile according to user's mode instruction, and obtain the operational factor of motor and electrokinetic cellStatus information, and be switched to object run according to the status information control electric automobile of the operational factor of motor and electrokinetic cellPattern, this dynamical system, for user provides plurality of operating modes, by electrokinetic cell output characteristics is regulated and controled, meetsThe driving demand of user individual, thereby promoted user's experience.
In order to realize above-described embodiment, the invention allows for a kind of electric automobile.
Fig. 2 is the block diagram of electric automobile according to an embodiment of the invention. As shown in Figure 2, the electricity of the embodiment of the present inventionElectrical automobile 1000, comprises the dynamical system 100 of the electric automobile that our inventive embodiments proposes.
The electric automobile of the embodiment of the present invention is owing to having had this dynamical system, for user provides plurality of operating modes, logicalCross electrokinetic cell output characteristics is regulated and controled, met the driving demand of user individual, thereby promoted user's drivingExperience.
In order to realize above-described embodiment, the invention allows for a kind of control method of electric automobile.
Fig. 3 is the flow chart of the control method of electric automobile according to an embodiment of the invention. As shown in Figure 3, the present inventionThe control method of the electric automobile of embodiment, comprises the following steps:
S1, the receiver by electric automobile receives user's mode instruction.
In one embodiment of the invention, receiver is mode selection switch.
In one embodiment of the invention, the object run pattern of electric automobile is battery power pattern, battery long-range patternOr battery protection pattern.
For example, user may have the different demands of driving in the process of steering vehicle, sometimes needs powerful power, hasIn time, need to consume and tries one's best few electric weight and the long as possible distance of travelling, so, user can by mode selection switch select fromOwn desirable operational mode, as, battery power pattern, battery long-range pattern or battery protection pattern.
Particularly, user can select by mode selection switch the target mode of operation of electric automobile.
S2, obtains the object run pattern of electric automobile according to user's mode instruction.
Particularly, the mode instruction that entire car controller receives according to receiver is known user-selected object run pattern.
S3, obtains the operational factor of motor and the status information of electrokinetic cell of electric automobile.
Particularly, entire car controller is by communicating by letter to obtain the operational factor of motor with electric machine controller, and entire car controller passes throughCommunicate by letter to obtain the status information of electrokinetic cell with battery manager.
In one embodiment of the invention, the operational factor of motor can comprise rotating speed and moment of torsion, and the status information of battery canTo comprise the information such as the electric weight, discharge current, voltage, temperature of battery.
S4, is switched to object run pattern according to the status information control electric automobile of the operational factor of motor and electrokinetic cell.
Particularly, entire car controller is by judging whether the operational factor of motor and the status information of electrokinetic cell meet the requirementsDetermine whether electric automobile to be switched to object run pattern. Be elaborated below.
In one embodiment of the invention, step S4 specifically comprises: judge the operational factor of motor and the state of electrokinetic cellWhether information is in parameter area corresponding to object run pattern; If so, control electric automobile and be switched to object runPattern.
Particularly, in order to prevent that electric automobile is in the time carrying out operational mode switching, electric automobile generation state mutation is given and is driven bandCome the bad experience of security risk or, entire car controller is receiving after user's mode instruction, obtains the parameter of electric automobileInformation, for example, the operational factor of motor and the status information of electrokinetic cell, and judge whether these parameter values are transported in targetIn the corresponding parameter area of row mode, if in, control electric automobile and switch to user institute by current operational modeThe object run pattern of selecting.
Further, in one embodiment of the invention, if the status information of the operational factor of motor and electrokinetic cell is notIn parameter area corresponding to object run pattern, be switched to object run at the static rear control electric automobile of electric automobilePattern.
Particularly, if entire car controller judges that the operational factor of motor and the status information of electrokinetic cell be not in object runIn parameter area corresponding to pattern, do not allow electric automobile to be switched to immediately object run pattern, entire car controller continues prisonThe running status of the operational factor of measured motor and the status information of electrokinetic cell and electric automobile. If user's pulling over observing, whenThe static rear entire car controller of electric automobile is switched to electric automobile object run pattern, or, if user does not controlElectric automobile stops, and electric automobile is in traveling process, for example, along with user (, has reduced the change of electric automobile operationTo the degree of trampling of accelerating to trample), the operational factor of motor and the status information of electrokinetic cell also can change, when car load controlDevice processed judges that the operational factor of motor and the status information of electrokinetic cell fall in the corresponding parameter area of object run patternTime, then control electric automobile and switch to object run pattern, thereby ensured that traffic safety and user's driving experiences.
By way of example, travel under battery power pattern if the electric automobile that user drives is current, user passes through operator schemeElectric automobile is switched to battery long-range pattern by selector switch wish, i.e. object run pattern is battery long-range pattern. For example, electricityThe maximum discharge current that pond dynamic mode allows is 150A, and the maximum discharge current that battery long-range pattern allows is 120A,When user chooses after battery long-range pattern by operator scheme selector switch, entire car controller is by communicating by letter and obtain with battery managerGetting the current discharge current of electrokinetic cell is 147A, and the maximum discharge current that battery long-range pattern allows is only 120A,So, entire car controller judges that the current status information of electrokinetic cell is not in the corresponding parameter area of object run pattern,If switch immediately, the discharge current of electrokinetic cell can be undergone mutation, thereby can cause speed of a motor vehicle sudden change, and then may send outThe raw accidents such as car of can slipping while being travelled on slope by car rear-end or electric automobile, so, car load in this caseController does not allow electric automobile to be switched to immediately object run pattern.
User can be at suitable section pulling over observing, and after waiting electric automobile to remain static, entire car controller is controlled electricity againElectrical automobile is switched to battery long-range pattern, thereby has ensured traffic safety; Or user also can select not stop, butChange the operation (for example, having reduced the degree of trampling of trampling accelerating) to electric automobile, so, the electric discharge electricity of electrokinetic cellStream also can change thereupon, and when entire car controller, to judge that the status information of electrokinetic cell falls into object run pattern correspondingIn parameter area time, then control electric automobile and switch to object run pattern, thus the driving while having ensured that operational mode is switchedSafety.
In one embodiment of the invention, in the time that the operational mode of electric automobile is switched to battery power pattern, control powerThe maximum discharge-rate of battery is the first default discharge-rate, and the minimum discharge voltage of controlling electrokinetic cell is the first default electricityPress; In the time that the operational mode of electric automobile is switched to battery long-range pattern, the maximum discharge-rate of controlling electrokinetic cell is secondPre-arcing multiplying power, and the minimum discharge voltage of controlling electrokinetic cell is the second predeterminated voltage, and the second default discharge-rate correspondenceThe optimal economic speed per hour of electric automobile; In the time that the operational mode of electric automobile is switched to battery protection pattern, control electrokinetic cellMaximum discharge-rate be the 3rd pre-arcing multiplying power, and the minimum discharge voltage of controlling electrokinetic cell is the 3rd predeterminated voltage, itsIn, the second default discharge-rate and the 3rd default discharge-rate are all less than the first default discharge-rate, the first predeterminated voltage and theTwo predeterminated voltages are all less than the 3rd predeterminated voltage.
Particularly, in the maximum discharge-rate allowing in three kinds of operational modes of electric automobile, battery power pattern allowsValue (i.e. the first default discharge-rate) maximum of maximum discharge-rate, thinks that electric automobile provides powerful power; Battery is longThe maximum discharge-rate allowing of journey pattern (i.e. the second default discharge-rate) just in time supports optimal economic speed per hour (withThe little energy consumption corresponding speed per hour of the longest distance of travelling); The minimum discharge voltage allowing in three kinds of operational modes of electric automobileIn, value (i.e. the 3rd predeterminated voltage) maximum of the minimum discharge voltage that battery protection pattern allows, thereby protection power electricPond.
The operational mode of the electric automobile in correlation technique is single, easily causes the problem of the lasting damaged of electrokinetic cell, evenSome electric automobiles have two grades of electronic speed limit or mechanical speed change, have also just carried out simply from load one side of motor or machineryChange and regulate, regulative mode is more rough. And the control method of the electric automobile of the embodiment of the present invention, for user provides manyPlants optional operational mode, or tend to powerful, or it is long to tend to mileages of continuation, or tend to battery protection,Output characteristics that can classification motivation of adjustment battery, has been fine to the meticulous of battery side battery management to the regulation and control of electric automobileRank degree, makes user can select suitable operational mode to meet the driving needs of oneself, has both promoted user's experience,Can protect electrokinetic cell in some cases again.
The control method of the electric automobile of the embodiment of the present invention, reception user's mode instruction, obtains according to user's mode instructionThe object run pattern of power taking electrical automobile, and obtain the operational factor of motor and the status information of electrokinetic cell, and according to electricityThe status information control electric automobile of the operational factor of machine and electrokinetic cell is switched to object run pattern, and the method is carried for userSupply plurality of operating modes, by electrokinetic cell output characteristics is regulated and controled, met the driving demand of user individual,Thereby promote user's experience.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width "," thickness ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior "," outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferentially " etc. instruction orientation or position relationship be based onOrientation shown in the drawings or position relationship, be only the present invention for convenience of description and simplified characterization, instead of instruction or hint instituteThe device referring to or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as thisBright restriction.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can be expressedOr impliedly comprise at least one this feature. In description of the invention, the implication of " multiple " is at least two, for example twoIndividual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing "Should be interpreted broadly Deng term, for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can beMechanical connection can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be twoThe interaction relationship of the connection of individual element internal or two elements, unless separately there is clear and definite restriction. Common for this areaTechnical staff, can understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score canBeing that the first and second features directly contact, or the first and second features are by intermediary mediate contact. And, theOne feature Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic orOblique upper, or only represent that First Characteristic level height is higher than Second Characteristic. First Characteristic Second Characteristic " under "," below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represents the first spyLevy level height and be less than Second Characteristic.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure, material orFeature is contained at least one embodiment of the present invention or example. In this manual, the schematic statement to above-mentioned termNot must for be identical embodiment or example. And specific features, structure, material or the feature of description canIn one or more embodiment in office or example with suitable mode combination. In addition, not conflicting in the situation that, abilityThe technical staff in territory can enter the feature of the different embodiment that describe in this description or example and different embodiment or exampleRow combination and combination.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary,Can not be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodimentChange, amendment, replacement and modification.
Claims (12)
1. a dynamical system for electric automobile, is characterized in that, comprising:
Receiver, described receiver is in order to receive user's mode instruction;
Motor;
Electric machine controller, described electric machine controller is connected that with described motor described motor is controlled;
Electrokinetic cell, described electrokinetic cell is in order to give described motor power supply;
Battery manager, described battery manager and described electrokinetic cell are connected to obtain the status information of described electrokinetic cell;
Entire car controller, described entire car controller is connected with described receiver, and respectively with described electric machine controller and described electricityPool manager communicates to obtain the operational factor of described motor and the status information of described electrokinetic cell, described car load controlDevice obtains the object run pattern of described electric automobile according to described user's mode instruction, and according to the operation ginseng of described motorDescribed in the status information control of number and described electrokinetic cell, electric automobile is switched to described object run pattern.
2. the dynamical system of electric automobile as claimed in claim 1, is characterized in that, described object run pattern is batteryDynamic mode, battery long-range pattern or battery protection pattern.
3. the dynamical system of electric automobile as claimed in claim 2, is characterized in that, described entire car controller is judgingState the operational factor of motor and the status information of described electrokinetic cell in parameter area corresponding to described object run pattern timeControl described electric automobile and be switched to described object run pattern.
4. the dynamical system of electric automobile as claimed in claim 2, is characterized in that, described entire car controller is judgingState the operational factor of motor and the status information of described electrokinetic cell not in parameter area corresponding to described object run patternTime, be switched to described object run pattern at the described electric automobile of the static rear control of described electric automobile.
5. the dynamical system of electric automobile as claimed in claim 2, is characterized in that,
In the time that the operational mode of described electric automobile is switched to described battery power pattern, moving described in described vehicle control unit controlsThe maximum discharge-rate of power battery is that the first default discharge-rate, minimum discharge voltage are the first predeterminated voltage;
In the time that the operational mode of described electric automobile is switched to described battery long-range pattern, moving described in described vehicle control unit controlsThe maximum discharge-rate of power battery is that the second pre-arcing multiplying power, minimum discharge voltage are the second predeterminated voltage, and described second is defaultThe optimal economic speed per hour of the corresponding described electric automobile of discharge-rate;
In the time that the operational mode of described electric automobile is switched to described battery protection pattern, moving described in described vehicle control unit controlsThe maximum discharge-rate of power battery is that the 3rd pre-arcing multiplying power, minimum discharge voltage are the 3rd predeterminated voltage, wherein,
The described second default discharge-rate and the described the 3rd default discharge-rate are all less than the described first default discharge-rate, described inThe first predeterminated voltage and described the second predeterminated voltage are all less than described the 3rd predeterminated voltage.
6. the dynamical system of electric automobile as claimed in claim 1, is characterized in that, described receiver is that model selection is openedClose.
7. an electric automobile, is characterized in that, comprises the dynamical system as described in any one in claim 1-6.
8. a control method for electric automobile, is characterized in that, comprises the following steps:
Receive user's mode instruction by the receiver of described electric automobile;
Obtain the object run pattern of described electric automobile according to described user's mode instruction;
Obtain the operational factor of motor and the status information of electrokinetic cell of described electric automobile;
Be switched to described order according to electric automobile described in the status information control of the operational factor of described motor and described electrokinetic cellMark operational mode.
9. the control method of electric automobile as claimed in claim 8, is characterized in that, described object run pattern is batteryDynamic mode, battery long-range pattern or battery protection pattern.
10. the control method of electric automobile as claimed in claim 9, is characterized in that, described according to the fortune of described motorDescribed in the status information control of line parameter and described electrokinetic cell, electric automobile is switched to described object run pattern, specifically comprises:
Judge that whether the operational factor of described motor and the status information of described electrokinetic cell are in described object run pattern correspondenceParameter area in;
If so, control described electric automobile and be switched to described object run pattern.
The control method of 11. electric automobiles as claimed in claim 10, is characterized in that, also comprises:
If the status information of the operational factor of described motor and described electrokinetic cell is not corresponding in described object run patternIn parameter area, be switched to described object run pattern at the described electric automobile of the static rear control of described electric automobile.
The control method of 12. electric automobiles as claimed in claim 9, is characterized in that,
In the time that the operational mode of described electric automobile is switched to described battery power pattern, the maximum of controlling described electrokinetic cell is putElectricity multiplying power is the first default discharge-rate, and the minimum discharge voltage of controlling described electrokinetic cell is the first predeterminated voltage;
In the time that the operational mode of described electric automobile is switched to described battery long-range pattern, the maximum of controlling described electrokinetic cell is putElectricity multiplying power is the second pre-arcing multiplying power, and the minimum discharge voltage of controlling described electrokinetic cell is the second predeterminated voltage, and described inThe optimal economic speed per hour of the corresponding described electric automobile of the second default discharge-rate;
In the time that the operational mode of described electric automobile is switched to described battery protection pattern, the maximum of controlling described electrokinetic cell is putElectricity multiplying power is the 3rd pre-arcing multiplying power, and the minimum discharge voltage of controlling described electrokinetic cell is the 3rd predeterminated voltage, wherein,
The described second default discharge-rate and the described the 3rd default discharge-rate are all less than the described first default discharge-rate, described inThe first predeterminated voltage and described the second predeterminated voltage are all less than described the 3rd predeterminated voltage.
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Application publication date: 20160615 |