CN108099698A - Electric vehicle and its control method and control device and readable storage medium storing program for executing - Google Patents
Electric vehicle and its control method and control device and readable storage medium storing program for executing Download PDFInfo
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- CN108099698A CN108099698A CN201711463667.5A CN201711463667A CN108099698A CN 108099698 A CN108099698 A CN 108099698A CN 201711463667 A CN201711463667 A CN 201711463667A CN 108099698 A CN108099698 A CN 108099698A
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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
- 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
- B60L2240/423—Torque
-
- 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
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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric vehicle and its control methods and control device and readable storage medium storing program for executing, the control method of the electric vehicle includes at least one of energy management method of the energy management method of driving driving, the energy management method of vehicle feedback and the non-driven non-feedback of vehicle, drive a vehicle driving energy management method calculating optimal output torque, the management method of vehicle feedback is to calculate optimal feedback demand torque, and the energy management method of non-driven non-feedback is to it is determined whether to enable auxiliary component of vehicle.Technical solution of the present invention is using charge state value and discharge power or charge state value and two variables of charge power as Rule of judgment, go out motor optimal drive torque or feedback torque with reference to auxiliary apparatus power and current system efficiency calculation, prevent that electric vehicle from occurring to overcharge when overcurrent, feedback and over-current phenomenon avoidance during non-driven non-feedback in driving, simultaneously when battery capacity is relatively low, preferential support vehicles driving.
Description
Technical field
The present invention relates to electric vehicle field, especially a kind of electric vehicle and its control method and control device and
Readable storage medium storing program for executing.
Background technology
Energy-saving and environmental protection are the developing direction of future automobile, how energy saving, and it is development of automobile to improve energy utilization efficiency
An important technology.Pure electric automobile consumes less energy than regular fuel vehicle, and realizes zero-emission.Pure electric vehicle vapour
Vehicle is a kind of automobile for using power accumulator as power source, compared to traditional fuel vehicle, the main distinction be in power source and
Its drive system, pure electric vehicle power source are vehicle mounted dynamic batteries, and drive system is electric machine control system.Electric machine control system
Itself vehicle can be not only driven, but also vehicle mounted dynamic battery charge storage energy can be given to generate electricity during energy feedback, to drive again
It is used during motor-car.
Currently, there are charge state value estimation is not allowed, charging, discharging electric batteries performance is easily subject to external environment temperature for power battery
The problems such as influence of degree.However, most of electric automobile energy management only consider charge state value, easily to battery overcurrent, mistake
Fill or influence electric powered motor sex chromosome mosaicism.
The content of the invention
The main object of the present invention is to provide a kind of electric vehicle and its control method and control device and readable storage
Medium, it is intended to solve the problems, such as to overcharge when overcurrent, feedback during pure electric automobile driving and overcurrent during non-driven non-feedback.
To achieve the above object, the present invention proposes a kind of control method of electric vehicle, includes the energy pipe of driving driving
At least one of energy management method of reason method, the energy management method of vehicle feedback and the non-driven non-feedback of vehicle,
In,
The energy management method of the driving driving comprises the following steps：
Obtain charge state value S1, discharge power P1, ancillary equipment the consumption power P 2 of battery and Vehicular system efficiency
y1；
According to the size between S1 and P1 and corresponding given threshold, it is determined whether to enable ancillary equipment, and according to S1,
P1, P2 and y1 calculate output torque of the vehicle when opening ancillary equipment and not opening ancillary equipment；
The energy management method of the vehicle feedback comprises the following steps：
Obtain charge state value S1, chargeable power P 3, ancillary equipment consumption power P 2 and the Vehicular system effect of battery
Rate y2；
According to the size between S1 and P3 and corresponding given threshold, judge whether to energy feedback, and according to S1,
P3, P2 and y2 calculate vehicle and are more than feedback demand torque when P3 and P2 is less than P3 in P2；
The energy management method of the non-driven non-feedback of vehicle comprises the following steps：
Obtain battery charge state value S1 and can discharge power P4；
According to the size between S1 and P4 and corresponding given threshold, it is determined whether to enable ancillary equipments.
Preferably, the ancillary equipment includes PTC or AC.
Preferably, according to the size between S1 and P1 and corresponding given threshold, it is determined whether to enable ancillary equipment, and root
The step of calculating output torque of the vehicle when opening ancillary equipment and not opening ancillary equipment according to S1, P1, P2 and y1 includes：
Judge whether charge state value S1 is more than preset calibrations value S2 and whether battery discharge power P1 is more than preset calibrations
Value P5；
If it is not, then forbidding opening ancillary equipment, current available power P6 is calculated by relationship below：P6=P1*y1, and root
Output torque N1 is calculated according to motor current rotating speed v and P6；
If so, continue to judge ancillary equipment whether in opening；
If in opening, current available power P6, P6=(P1-P2) * y1 are calculated, and according to the current rotating speed v of motor
Output torque N1 is calculated with P6；
If being closed, current available power P6, P6=P1*y1 are calculated, and is counted according to motor current rotating speed v and P6
Calculate output torque N1.
Preferably, charge state value S1, discharge power P1, ancillary equipment the consumption power P 2 of battery and vehicle system are obtained
The step of system efficiency y1, includes：
First motor drive efficiency y3 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y1, y1=y3+y4 are calculated according to the first motor drive efficiency y3 and the first corrected parameter y4.
Preferably, according to the size between S1 and P3 and corresponding given threshold, energy feedback, and root are judged whether to
The step of calculating feedback demand torque of the vehicle when P2 is more than P3 and P2 less than P3 according to S1, P3, P2 and y2 includes：
Judge whether charge state value S1 is less than calibration value S3 and whether the chargeable power P 3 of battery is less than preset calibrations value
P7；
If it is not, forbid motor power feedback；
If so, continue to judge whether ancillary equipment consumption power P 2 is less than chargeable power P 3；
If more than, current chargeable power P 8, P8=P3*y2 is calculated, and according to motor current rotating speed v and P8 calculating feedback
Demand torque N2；
If being less than, current chargeable power P 8, P8=(P3+P2) * y2 are calculated, and is counted according to motor current rotating speed v and P8
Calculate feedback demand torque N2.
Preferably, charge state value S1, chargeable power P 3, ancillary equipment consumption power P 2 and the vehicle of battery are obtained
The step of system effectiveness y2, includes：
Second motor drive efficiency y5 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y2, y2=y5+y6 are calculated according to the second motor drive efficiency y5 and the second corrected parameter y6.
Preferably, according to the size between S1 and P4 and corresponding given threshold, it is determined whether to enable the steps of ancillary equipment
Suddenly include：
Judge whether S1 is more than whether preset calibrations value S4, battery discharge power P4 are more than calibration value P9；
If so, open ancillary equipment；
If it is not, forbid opening ancillary equipment.
The present invention proposes a kind of control device of electric vehicle, including：Memory, processor and it is stored in the memory
Management pure electric automobile energy program that is upper and can running on the processor, the management pure electric automobile energy program bag
Include the program of energy management, the energy management program of vehicle feedback and the energy management of the non-driven non-feedback of vehicle of driving driving
At least one of program, the program of the management pure electric automobile energy are realized as previously discussed when being performed by the processor
Any one of them electric vehicle control method the step of.
The present invention proposes a kind of readable storage medium storing program for executing, and management pure electric automobile energy is stored on the readable storage medium storing program for executing
Program, the management pure electric automobile energy program include the energy management program of driving driving, the energy management of vehicle feedback
At least one of program and the energy management program of the non-driven non-feedback of vehicle, the program of the management pure electric automobile energy
The step of control method of any one of them electric vehicle as described above is realized when being executed by processor.
The present invention proposes a kind of electric vehicle, and the electric vehicle includes the control device of electric vehicle as described above.
Technical solution of the present invention is with charge state value and discharge power or charge state value and two variables of charge power
As Rule of judgment, go out motor optimal drive torque with reference to auxiliary apparatus power and current system efficiency calculation or feedback is turned round
Square prevents that electric vehicle from occurring to overcharge when overcurrent, feedback and over-current phenomenon avoidance during non-driven non-feedback in driving, together
When battery capacity is relatively low, the driving of preferential support vehicles.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Structure according to these attached drawings obtains other attached drawings.
Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of the energy management method of driving driving provided by the invention；
Fig. 3 is the flow diagram of the energy management method of vehicle feedback provided by the invention；
Fig. 4 is the flow diagram of the energy management method of the non-driven non-feedback of vehicle provided by the invention；
Fig. 5 is the flow diagram of the control method first embodiment of electric vehicle provided by the invention；
Fig. 6 is the flow diagram of the control method second embodiment of electric vehicle provided by the invention；
Fig. 7 is the flow diagram of the control method 3rd embodiment of electric vehicle provided by the invention；
Fig. 8 is the flow diagram of the control method fourth embodiment of electric vehicle provided by the invention；
Fig. 9 is the flow diagram of the 5th embodiment of control method of electric vehicle provided by the invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, belongs to the scope of protection of the invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...),
Then the party+tropism instruction is only used for explaining that the relative position under a certain particular pose (as shown in drawings) between each component is closed
System, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, " first ", " second " etc. are somebody's turn to do
Description be only used for description purpose, and it is not intended that instruction or implying its relative importance or implicit indicating indicated skill
The quantity of art feature." first " is defined as a result, and the feature of " second " can be expressed or implicitly includes at least one spy
Sign.In addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, the knot of this technical solution is will be understood that when the combination appearance of technical solution is conflicting or can not realize
Conjunction is not present, also not the present invention claims protection domain within.
The primary solutions of the embodiment of the present invention are：Solve pure electric automobile driving when overcurrent, feedback when overcharge and
During non-driven non-feedback the problem of overcurrent.
Currently, there are charge state value estimation is not allowed, charging, discharging electric batteries performance is easily subject to external environment temperature for power battery
The problems such as influence of degree.However, most of electric automobile energy management only consider charge state value, easily to battery overcurrent, mistake
Fill or influence electric powered motor sex chromosome mosaicism.
The present invention provides a solution, at least solves to overcharge when overcurrent when pure electric automobile drives, feedback and non-
When driving non-feedback one of the problem of overcurrent.
As shown in Figure 1, the terminal structure schematic diagram for the hardware running environment that Fig. 1, which is the embodiment of the present invention, to be related to.
Terminal of the embodiment of the present invention can be the terminal devices such as entire car controller, below to run terminal as entire car controller
Exemplified by be illustrated.
As shown in Figure 1, the entire car controller includes：Processor 1001, communication bus 1002, data-interface 1003, storage
Device 1004.Wherein, communication bus 1002 is used to implement the connection communication between these components.Data-interface 1003 can also include
Wireline interface (such as USB interface or I/O interface), the wireless interface (such as WI-FI interfaces) of standard.Memory 1004 can be high
Fast RAM memory or the memory of stabilization (non-volatile memory), such as magnetic disk storage.Memory
The 1004 optional storage devices that can also be independently of aforementioned processor 1001.
It will be understood by those skilled in the art that the restriction of the terminal structure shown in Fig. 1 not structure paired terminal, can wrap
It includes and either combines some components or different components arrangement than illustrating more or fewer components.
As shown in Figure 1, it can be connect as in a kind of memory 1004 of computer storage media including operating system, data
Cause for gossip shows program and driving energy management program of driving a vehicle, vehicle feedback energy management program and the energy of the non-driven non-feedback of vehicle
Measure management program.
In terminal shown in Fig. 1, processor 1001 can be the control chip in entire car controller, which can
For calling the driving driving energy management program stored in memory 1004, and perform following operation：
Obtain charge state value S1, discharge power P1, ancillary equipment the consumption power P 2 of battery and Vehicular system efficiency
y1；
According to the size between S1 and P1 and corresponding given threshold, it is determined whether to enable ancillary equipment, and according to S1,
P1, P2 and y1 calculate output torque of the vehicle when opening ancillary equipment and not opening ancillary equipment；
The processor 1001 can be also used for calling the energy management program of the vehicle feedback stored in memory 1004, and
Perform following operation：
Obtain charge state value S1, chargeable power P 3, ancillary equipment consumption power P 2 and the Vehicular system effect of battery
Rate y2；
According to the size between S1 and P3 and corresponding given threshold, judge whether to energy feedback, and according to S1,
P3, P2 and y2 calculate vehicle and are more than feedback demand torque when P3 and P2 is less than P3 in P2；
The processor 1001 can be also used for calling the management journey of the non-driven non-feedback of vehicle stored in memory 1004
Sequence, and perform following operation：
Obtain battery charge state value S1 and can discharge power P4；
According to the size between S1 and P4 and corresponding given threshold, it is determined whether to enable ancillary equipments.
It should be noted that the embodiment of the present invention includes three kinds of energy management methods, the energy pipe for driving of respectively driving a vehicle
The energy management method of reason method, the energy management method of vehicle feedback and the non-driven non-feedback of vehicle.Certainly, implement at other
In example, the control method of electric vehicle can be a kind of wherein independent energy management method or two kinds of different-energy pipes
The combination of reason method, wherein, the control method of any electric vehicle is within the scope of the present invention.
Further, processor 1001 can call the network operation stored in memory 1004 to control application program, also
Perform following operation：
Judge whether charge state value S1 is more than whether preset calibrations value S2, battery discharge power P1 are more than preset calibrations value
P5；
If it is not, then forbidding opening ancillary equipment, current available power P6 is calculated by relationship below：P6=P1*y1；
Output torque N1 is calculated according to motor current rotating speed v and P6；
If so, continue to judge ancillary equipment whether in opening；
If in opening, current available power P6 is calculated by relationship below：P6=(P1-P2) * y1；
Output torque N1 is calculated according to motor current rotating speed v and P6；
If being closed, current available power P6 is calculated by relationship below：P6=P1*y1；
Output torque N1 is calculated according to motor current rotating speed v and P6.
Further, processor 1001 can call the network operation stored in memory 1004 to control application program, also
Perform following operation：
First motor drive efficiency y3 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y1, the current system are calculated according to the first motor drive efficiency y3 and the first corrected parameter y4
Efficiency y1 meets relationship below：Y1=y3+y4.
Further, processor 1001 can call the network operation stored in memory 1004 to control application program, also
Perform following operation：
Judge whether charge state value S1 is less than calibration value S3, whether the chargeable power P 3 of battery is less than preset calibrations value
P7；
If it is not, forbid motor power feedback；
If so, continue to judge whether ancillary equipment consumption power P 2 is less than chargeable power P 3；
If more than by the current chargeable power P 8 of relationship below calculating：P8=P3*y2；
Feedback demand torque N2 is calculated according to motor current rotating speed v and P8；
If being less than, current chargeable power P 8 is calculated by relationship below：P8=(P3+P2) * y2；
Feedback demand torque N2 is calculated according to motor current rotating speed v and P8.
Further, processor 1001 can call the network operation stored in memory 1004 to control application program, also
Perform following operation：
Second motor drive efficiency y5 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y2, the current system are calculated according to the second motor drive efficiency y5 and the second corrected parameter y6
Efficiency y2 meets relationship below：Y2=y5+y6.
Further, processor 1001 can call the network operation stored in memory 1004 to control application program, also
Perform following operation：
Judge whether S1 is more than whether preset calibrations value S4, battery discharge power P4 are more than calibration value P9；
If so, open ancillary equipment；
If it is not, forbid opening ancillary equipment.
The present invention also proposes a kind of control method of electric vehicle, wherein, Fig. 2 to 9 is electric vehicle provided by the invention
Control method multiple embodiments.
Please in detail refering to Fig. 2 to Fig. 4, the control method of the electric vehicle include the energy management method of driving driving,
At least one of energy management method of the non-driven non-feedback of energy management method and vehicle of vehicle feedback, wherein,
The energy management method of the driving driving comprises the following steps：
S10, the charge state value S1 for obtaining battery, discharge power P1, ancillary equipment consumption power P 2 and Vehicular system
Efficiency y1；
S20, according to the size between S1 and P1 and corresponding given threshold, it is determined whether to enable ancillary equipment, and according to
S1, P1, P2 and y1 calculate output torque of the vehicle when opening ancillary equipment and not opening ancillary equipment；
The energy management method of the vehicle feedback comprises the following steps：
S30, the charge state value S1 for obtaining battery, chargeable power P 3, ancillary equipment consumption power P 2 and vehicle system
Efficiency of uniting y2；
S40, according to the size between S1 and P3 and corresponding given threshold, judge whether to energy feedback, and according to
S1, P3, P2 and y2 calculate vehicle and are more than feedback demand torque when P3 and P2 is less than P3 in P2；
The energy management method of the non-driven non-feedback of vehicle comprises the following steps：
S50, obtain battery charge state value S1 and can discharge power P4；
S60, according to the size between S1 and P4 and corresponding given threshold, it is determined whether to enable ancillary equipments.
Herein it should be noted that the embodiment of the present invention includes three kinds of energy management methods, respectively driving drives
The energy management method of energy management method, the energy management method of vehicle feedback and the non-driven non-feedback of vehicle.Certainly, at it
In his embodiment, the control method of electric vehicle can be a kind of wherein independent energy management method or two kinds of differences
The combination of energy management method, wherein, the control method of any electric vehicle is within the scope of the present invention.
Technical solution of the present invention is with for charge state value and discharge power or charge state value and two changes of charge power
Amount goes out motor optimal drive torque with reference to auxiliary apparatus power and current system efficiency calculation or feedback is turned round as Rule of judgment
Square prevents that electric vehicle from occurring to overcharge when overcurrent, feedback and over-current phenomenon avoidance during non-driven non-feedback in driving, together
When battery capacity is relatively low, the driving of preferential support vehicles.
Specifically, in the present embodiment, the ancillary equipment includes PTC or AC.Certainly, consumed on other pure electric automobiles
High-power high pressure attachment equally falls within the scope of the ancillary equipment, does not describe one by one herein.
As shown in figure 5, step S20 includes：
S201, judge whether charge state value S1 is more than preset calibrations value S2, it is default whether battery discharge power P1 is more than
Calibration value P5；
S202, if it is not, then forbidding opening ancillary equipment, current available power P6 is calculated by relationship below：P6=P1*
Y1, and output torque N1 is calculated according to motor current rotating speed v and P6；
S203, if so, continuing to judge ancillary equipment whether in opening；
If S204, being in opening, current available power P6 is calculated by relationship below：P6=(P1-P2) * y1, and
Output torque N1 is calculated according to motor current rotating speed v and P6；
If S205, being closed, current available power P6 is calculated by relationship below：P6=P1*y1, and according to electricity
Machine current rotating speed v and P6 calculate output torque N1.
Specifically, in the present embodiment specific implementation process, entire car controller obtains battery management system by bus and sends out
The charge state value S1 and battery discharge power P1 sent, entire car controller judge whether charge state value S is more than preset calibrations value
Whether S2, discharge power are more than preset calibrations value P5, if it is not, then in order to ensure function that vehicle is driven a vehicle substantially, entire car controller
It can forbid opening ancillary equipment, motor output torque N1 is acquired driving vehicle further according to formula is computed as described above；If so,
Whether entire car controller continues to judge ancillary equipment in opening, herein, if ancillary equipment is in opening, then
When calculating available power, need first to subtract the consumption power P 2 of ancillary equipment with discharge power P1, multiplied by with Vehicular system efficiency
It is acquired after y1.
As shown in fig. 6, step S10 includes：
S101, the first motor drive efficiency y3 is obtained according to motor current rotating speed v and current torque N；
S102, current system efficiency y1 is calculated according to the first motor drive efficiency y3 and the first corrected parameter y4, it is described to work as
Preceding system effectiveness y1 meets relational expression：Y1=y3+y4.
Herein it should be noted that the first motor drive efficiency y3 can pass through the current rotating speed v of motor and current torsion
Square N the two known parameters combination parallel tables lookups learn that the first corrected parameter y4 is parameter preset, and the first motor drives
Current system efficiency y1 can be drawn after efficiency of movement y3 and the first corrected parameter y4 summations.Wherein, the compares figure and described default
Parameter is to be prestored in system and is the prior art, is not described in detail herein.
As shown in fig. 7, step S40 includes：
S401, judge whether charge state value S1 is less than calibration value S3, whether the chargeable power P 3 of battery is less than pre- bidding
Definite value P7；
S402, if it is not, forbidding motor power feedback；
S403, if so, continuing to judge whether ancillary equipment consumption power P 2 is less than chargeable power P 3；
S404, if more than calculating current chargeable power P 8 by relationship below：P8=P3*y2, and it is current according to motor
Rotating speed v and P8 calculate feedback demand torque N3；
If S405, being less than, current chargeable power P 8 is calculated by relationship below：P8=(P3+P2) * y2, and according to electricity
Machine current rotating speed v and P8 calculate feedback demand torque N3.
In the present embodiment specific implementation process, entire car controller obtains the charge of battery management system transmission by bus
State value S1 and the chargeable power P 3 of battery, entire car controller judge whether charge state value S1 is less than calibration value S3, and battery can
Whether charge power P3 is less than preset calibrations value P7, if it is not, then showing that charge state value is excessive at this time, battery belongs to electricity at this time
Saturation state, without carrying out energy feedback, thus in this state, entire car controller forbids energy feedback；If so, vehicle pipe
Reason device continues to judge whether the consumption power P 2 of ancillary equipment under current state is less than chargeable power P 3, herein, when described
When the consumption power P 2 of ancillary equipment is less than chargeable power P 3, to supplement electricity as far as possible, consumption power P 2 is added and can filled
After electrical power P 3, multiplied by obtain current chargeable power P 8 after current system efficiency y2, then by calculating feedback demand torque
N2.It is more than it should be noted that can just generate consumption power P 2 only when environment temperature is too low or excessively high under normal conditions
The situation of chargeable power P 3, therefore under this condition, the current chargeable power P 8 of battery should be less than P3 in order to avoid generating overcurrent
The phenomenon that overcharging to battery so as to cause to damage.
As shown in figure 8, step S30 is further included：
S301, the second motor drive efficiency y5 is obtained according to motor current rotating speed v and current torque N；
S302, current system efficiency y2 is calculated according to the second motor drive efficiency y5 and the second corrected parameter y6, it is described to work as
Preceding system effectiveness y2 meets relationship below：Y2=y5+y6.
Herein, the acquisition modes of the second motor drive efficiency y5 are identical with the first motor drive efficiency y3,
It is to learn that described second corrects ginseng by motor current rotating speed v and current torque N the two known parameters parallel tables lookups
Number y6 is also parameter preset, after current system efficiency y2 can be by the second motor drive efficiency y5 and the second correction factor y6 summations
It obtains.Wherein, the compares figure and the parameter preset are to be prestored in system and are the prior art, are not situated between in detail herein
It continues.
As shown in figure 9, step S60 includes：
S601, judge S1 whether be more than preset calibrations value S4, battery can discharge power P4 whether be more than calibration value P9；
S602, if so, open ancillary equipment；
S603, if it is not, forbid open ancillary equipment.
When vehicle is in non-driven non-regenerating condition, if charge state value S1 is more than preset calibrations value S4, battery can be put
Electrical power can generate overload flow phenomenon damage battery when being more than calibration value P9, so as to influence the normal work of battery and system,
For this phenomenon is avoided to occur, vehicle control unit controls open ancillary equipment, and a portion is consumed by the ancillary equipment
Power, so as to reduce can discharge power P4 size, avoid generate overload flow phenomenon.
The invention discloses a kind of control device of electric vehicle, the control device of the electric vehicle includes：Memory,
Processor and the management pure electric automobile energy program that is stored on the memory and can run on the processor, it is described
Managing pure electric automobile energy program includes the program of energy management, the energy management program of vehicle feedback and the vehicle of driving driving
At least one of energy management program of non-driven non-feedback, the program of the management pure electric automobile energy is by the place
Manage the step of control method of the electric vehicle of each embodiment as described above is realized when device performs.
The invention discloses a kind of readable storage medium storing program for executing, management pure electric automobile energy is stored on the readable storage medium storing program for executing
Range sequence, the management pure electric automobile energy program include the energy management program of driving driving, the energy pipe of vehicle feedback
Manage at least one of program and the energy management program of the non-driven non-feedback of vehicle, the journey of the management pure electric automobile energy
The step of control method of the electric vehicle of each embodiment as described above is realized when sequence is executed by processor.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes as this process, method, article or device institute inherently
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone, computer, cloud
Hold server, air conditioner or the network equipment etc.) method that performs each embodiment of the present invention.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
The equivalent structure transformation that description of the invention and accompanying drawing content are made directly or indirectly is used in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of control method of electric vehicle, which is characterized in that energy management method, vehicle feedback including driving driving
At least one of energy management method and the energy management method of the non-driven non-feedback of vehicle, wherein,
The energy management method of the driving driving comprises the following steps：
Obtain charge state value S1, discharge power P1, ancillary equipment the consumption power P 2 of battery and Vehicular system efficiency y1；
According to the size between S1 and P1 and corresponding given threshold, it is determined whether to enable ancillary equipment, and according to S1, P1, P2
Output torque of the vehicle when opening ancillary equipment and not opening ancillary equipment is calculated with y1；
The energy management method of the vehicle feedback comprises the following steps：
Obtain charge state value S1, chargeable power P 3, ancillary equipment consumption power P 2 and the Vehicular system efficiency y2 of battery；
According to the size between S1 and P3 and corresponding given threshold, energy feedback is judged whether to, and according to S1, P3, P2
Vehicle, which is calculated, with y2 is more than feedback demand torque when P3 and P2 is less than P3 in P2；
The energy management method of the non-driven non-feedback of vehicle comprises the following steps：
Obtain battery charge state value S1 and can discharge power P4；
According to the size between S1 and P4 and corresponding given threshold, it is determined whether to enable ancillary equipments.
2. the control method of electric vehicle as described in claim 1, which is characterized in that the ancillary equipment includes PTC or AC.
3. the control method of electric vehicle as described in claim 1, which is characterized in that according to S1 and P1 and corresponding setting threshold
Size between value it is determined whether to enable ancillary equipment, and calculates vehicle according to S1, P1, P2 and y1 and is opening ancillary equipment
The step of output torque when not opening ancillary equipment, includes：
Judge whether charge state value S1 is more than preset calibrations value S2 and whether battery discharge power P1 is more than preset calibrations value P5；
If it is not, then forbidding opening ancillary equipment, current available power P6 is calculated by relationship below：P6=P1*y1, and according to electricity
Machine current rotating speed v and P6 calculate output torque N1；
If so, continue to judge ancillary equipment whether in opening；
If in opening, current available power P6, P6=(P1-P2) * y1 are calculated, and according to the current rotating speed v and P6 of motor
Calculate output torque N1；
If being closed, current available power P6, P6=P1*y1 are calculated, and it is defeated according to motor current rotating speed v and P6 calculating
Go out torque N1.
4. the control method of electric vehicle as described in claim 1, which is characterized in that obtain battery charge state value S1,
The step of discharge power P1, ancillary equipment consumption power P 2 and Vehicular system efficiency y1, includes：
First motor drive efficiency y3 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y1, y1=y3+y4 are calculated according to the first motor drive efficiency y3 and the first corrected parameter y4.
5. the control method of electric vehicle as described in claim 1, which is characterized in that according to S1 and P3 and corresponding setting threshold
Size between value judges whether to energy feedback, and calculates vehicle according to S1, P3, P2 and y2 and be more than P3 and P2 in P2
The step of feedback demand torque during less than P3, includes：
Judge whether charge state value S1 is less than calibration value S3 and whether the chargeable power P 3 of battery is less than preset calibrations value P7；
If it is not, forbid motor power feedback；
If so, continue to judge whether ancillary equipment consumption power P 2 is less than chargeable power P 3；
If more than, current chargeable power P 8, P8=P3*y2 is calculated, and according to motor current rotating speed v and P8 calculating feedback demand
Torque N2；
If being less than, current chargeable power P 8, P8=(P3+P2) * y2 are calculated, and is calculated back according to the current rotating speed v and P8 of motor
Present demand torque N2.
6. the control method of the electric vehicle as described in right wants 1, which is characterized in that obtain battery charge state value S1, can
The step of charge power P3, ancillary equipment consumption power P 2 and Vehicular system efficiency y2, includes：
Second motor drive efficiency y5 is obtained according to motor current rotating speed v and current torque N；
Current system efficiency y2, y2=y5+y6 are calculated according to the second motor drive efficiency y5 and the second corrected parameter y6.
7. the control method of electric vehicle as described in claim 1, which is characterized in that according to S1 and P4 and corresponding setting threshold
Size between value, it is determined whether to enable the step of ancillary equipment to include：
Judge whether S1 is more than whether preset calibrations value S4, battery discharge power P4 are more than calibration value P9；
If so, open ancillary equipment；
If it is not, forbid opening ancillary equipment.
8. a kind of control device of electric vehicle, which is characterized in that the control device of the electric vehicle includes memory, processing
Device and the management pure electric automobile energy program that is stored on the memory and can run on the processor, the management
The program of energy management, the energy management program of vehicle feedback and vehicle that pure electric automobile energy program includes driving driving are non-
At least one of energy management program of non-feedback is driven, the program of the management pure electric automobile energy is by the processor
The step of control method of the electric vehicle as any one of claim 1 to 7 is realized during execution.
9. a kind of readable storage medium storing program for executing, which is characterized in that management pure electric automobile energy is stored on the readable storage medium storing program for executing
Program, the management pure electric automobile energy program include the energy management program of driving driving, the energy management of vehicle feedback
At least one of program and the energy management program of the non-driven non-feedback of vehicle, the program of the management pure electric automobile energy
The step of control method of the electric vehicle as any one of claim 1 to 7 is realized when being executed by processor.
10. a kind of electric vehicle, which is characterized in that include the control device of electric vehicle as claimed in claim 8.
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Application publication date: 20180601 |