CN107627899A - A kind of moment of torsion determines method, apparatus and electric automobile - Google Patents
A kind of moment of torsion determines method, apparatus and electric automobile Download PDFInfo
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- CN107627899A CN107627899A CN201710691483.8A CN201710691483A CN107627899A CN 107627899 A CN107627899 A CN 107627899A CN 201710691483 A CN201710691483 A CN 201710691483A CN 107627899 A CN107627899 A CN 107627899A
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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
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Abstract
The invention provides a kind of moment of torsion to determine method, apparatus and electric automobile, solve existing torque management method to calculate demand torque according only to gear signal etc. and do not consider the application function that vehicle currently opened, the problem of moment of torsion for causing electric automobile to export is difficult to meet current traveling demand.The moment of torsion of the present invention determines that method includes：The demand torque according to corresponding to current operating parameter, determine first object demand torque；Judge whether the electric automobile opens default application function；If the electric automobile opens default application function, then the second target requirement moment of torsion according to corresponding to the default application function, the final demand moment of torsion of the electric automobile is determined, otherwise, according to the first object demand torque, the final demand moment of torsion of the electric automobile is determined.Current default application function can be met the invention enables final demand moment of torsion, and then meet the purpose of current traveling demand.
Description
Technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of moment of torsion to determine method, apparatus and electric automobile.
Background technology
At present when the moment of torsion to electric automobile is managed, according only to gear signal, signal for faster, brake signal, with
And motor and battery signal calculate operator demand's moment of torsion, the application function that vehicle is currently opened is not considered, such as is opened anti-
Slip by slope, the function such as cruise, Anti-slip regulation so that the moment of torsion of electric automobile output is difficult to meet current traveling demand.
The content of the invention
It is an object of the invention to provide a kind of moment of torsion to determine method, apparatus and electric automobile, to solve existing torsion
Square management method does not consider the application function that vehicle is currently opened according only to the calculating demand torque such as gear signal, causes electricity
The problem of moment of torsion of electrical automobile output is difficult to meet current traveling demand.
To achieve these goals, the embodiment of the present invention provides a kind of moment of torsion and determines method, applied to electric automobile, bag
Include：
The demand torque according to corresponding to current operating parameter, determine first object demand torque；
Judge whether the electric automobile opens default application function；
If the electric automobile opens default application function, the second target need according to corresponding to the default application function
Moment of torsion is sought, determines the final demand moment of torsion of the electric automobile, otherwise, according to the first object demand torque, it is determined that described
The final demand moment of torsion of electric automobile.
Wherein, the demand torque according to corresponding to current operating parameter, the step of determining first object demand torque, bag
Include：
If the electric automobile opens cruise function, by demand torque corresponding to cruise function and current fortune
Demand torque corresponding to row parameter is compared；
If demand torque corresponding to cruise function is more than demand torque corresponding to current operating parameter, constant speed is patrolled
Demand torque corresponding to boat function is defined as the first object demand torque, otherwise, by demand corresponding to current operating parameter
Moment of torsion is defined as the first object demand torque.
Wherein, the default application function includes：Unmanned function and Anti-slip regulation function；
If the electric automobile opens default application function, according to the second mesh corresponding to the default application function
Mark demand torque, the step of determining the final demand moment of torsion of the electric automobile, including：
If the electric automobile only opens unmanned function, turned round according to demand corresponding to the unmanned function
Square, determine the final demand moment of torsion of the electric automobile；
If the electric automobile only opens Anti-slip regulation function or opens unmanned function and Anti-slip regulation work(simultaneously
Can, then the demand torque according to corresponding to the Anti-slip regulation function, determine the final demand moment of torsion of the electric automobile.
Wherein it is determined that after the final demand moment of torsion of the electric automobile, in addition to：
If the absolute value of the difference of the final demand moment of torsion and current output torque is more than predetermined torque Grad, right
The final demand moment of torsion carries out torque smooth control processing, obtains final output moment of torsion.
Wherein, torque smooth control processing is carried out to the final demand moment of torsion, obtains final output moment of torsion, including：
The predetermined torque Grad is increased or decreased on the basis of current output torque, the output after being updated is turned round
Square；
If the absolute value of the output torque and the difference of final demand moment of torsion after renewal is less than the predetermined torque Grad,
The output torque after renewal is then defined as final output moment of torsion, otherwise, continues to increase on the basis of output torque in the updated
Add deduct less the predetermined torque Grad, until the absolute value of the output torque and the difference of final demand moment of torsion after renewal is small
In the predetermined torque Grad.
Wherein, torque smooth control processing is carried out to the final demand moment of torsion, obtaining final output moment of torsion includes：
Using default filter transfer function, torque smooth control processing is carried out to the final demand moment of torsion, obtains final output
Moment of torsion.
Wherein, torque smooth control processing is carried out to the final demand moment of torsion, after obtaining final output moment of torsion, in addition to：
Judge whether the final output moment of torsion is more than the max. output torque of electric automobile；
If the final output moment of torsion is less than the max. output torque of the electric automobile, and current torque enabled state table
Bright permission torque output, then export the final output moment of torsion.
Wherein, the current operating parameter includes：Pedal aperture, motor speed and gear.
To achieve these goals, embodiments of the invention additionally provide a kind of moment of torsion determining device, applied to electronic vapour
Car, including：
First determining module, for the demand torque according to corresponding to current operating parameter, determine first object demand torque；
First judge module, for judging whether the electric automobile opens default application function；
Second determining module, if opening default application function for the electric automobile, default work(is applied according to described
Second target requirement moment of torsion corresponding to energy, the final demand moment of torsion of the electric automobile is determined, otherwise, according to the first object
Demand torque, determine the final demand moment of torsion of the electric automobile.
Wherein, first determining module includes：
Comparison sub-module, if cruise function is opened for the electric automobile, by corresponding to cruise function
Demand torque is compared with demand torque corresponding to current operating parameter；
First determination sub-module, if being more than for demand torque corresponding to cruise function corresponding to current operating parameter
Demand torque, then demand torque corresponding to cruise function is defined as the first object demand torque, otherwise, will be current
Demand torque corresponding to operational factor is defined as the first object demand torque.
Wherein, the default application function includes：Unmanned function and Anti-slip regulation function；
Second determining module includes：
Second determination sub-module, if only opening unmanned function for the electric automobile, according to it is described nobody drive
Demand torque corresponding to function is sailed, determines the final demand moment of torsion of the electric automobile；
3rd determination sub-module, driven if only opening Anti-slip regulation function for the electric automobile or opening nobody simultaneously
Function and Anti-slip regulation function are sailed, then the demand torque according to corresponding to the Anti-slip regulation function, determines the electric automobile
Final demand moment of torsion.
Wherein, above-mentioned moment of torsion determining device, in addition to：
Processing module, if being more than default turn round for the final demand moment of torsion and the absolute value of the difference of current output torque
Square Grad, then torque smooth control processing is carried out to the final demand moment of torsion, obtain final output moment of torsion.
Wherein, the processing module includes：
Submodule is handled, for increasing or decreasing the predetermined torque Grad on the basis of current output torque, is obtained
Output torque after to renewal；
4th determination sub-module, if the absolute value for output torque and the difference of final demand moment of torsion after updating is less than
The predetermined torque Grad, then be defined as final output moment of torsion by the output torque after renewal, otherwise, output in the updated
Continue to increase or decrease the predetermined torque Grad on the basis of moment of torsion, until the output torque after renewal is turned round with final demand
The absolute value of the difference of square is less than the predetermined torque Grad.
Wherein, the processing module is used to, using default filter transfer function, moment of torsion is carried out to the final demand moment of torsion
Smoothing processing, obtain final output moment of torsion.
Wherein, above-mentioned moment of torsion determining device, in addition to：
Second judge module, for judging whether the final output moment of torsion is more than the max. output torque of electric automobile；
Torque output module, if it is less than the max. output torque of the electric automobile for the final output moment of torsion, and
Current torque enabled state shows permission torque output, then exports the final output moment of torsion.
Wherein, the current operating parameter includes：Pedal aperture, motor speed and gear.
To achieve these goals, the embodiment of the present invention additionally provides a kind of electric automobile, including moment of torsion as described above
Determining device.
To achieve these goals, the embodiment of the present invention additionally provides a kind of electric automobile, including：Processor, memory
And the computer program that can be run on the memory and on the processor is stored in, the computer program is by the place
Reason device realizes the step of moment of torsion as described above determines method when performing.
To achieve these goals, the embodiment of the present invention additionally provides a kind of computer-readable recording medium, the calculating
Computer program is stored with machine readable storage medium storing program for executing, as described above turn round is realized when the computer program is executed by processor
Square determines the step of method.
The embodiment of the present invention has the advantages that：
The above-mentioned technical proposal of the embodiment of the present invention, the demand torque according to corresponding to current operating parameter, determine the first mesh
Mark demand torque；Judge whether the electric automobile opens default application function；If the electric automobile, which is opened to preset, applies work(
Can, then the second target requirement moment of torsion according to corresponding to the default application function, determines that the final demand of the electric automobile is turned round
Square, otherwise, according to the first object demand torque, determine the final demand moment of torsion of the electric automobile so that final demand
Moment of torsion can meet current default application function, and then meet the purpose of current traveling demand.
Brief description of the drawings
Fig. 1 is that the moment of torsion of the embodiment of the present invention determines the first workflow diagram of method；
Fig. 2 is that the moment of torsion of the embodiment of the present invention determines the second workflow diagram of method；
Fig. 3 is that the moment of torsion of the embodiment of the present invention determines the 3rd workflow diagram of method；
Fig. 4 is that the moment of torsion of the embodiment of the present invention determines the 4th workflow diagram of method；
Fig. 5 is the first module diagram of the moment of torsion determining device of the embodiment of the present invention；
Fig. 6 is the second module diagram of the moment of torsion determining device of the embodiment of the present invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with specific implementation
Example and accompanying drawing are described in detail.
The embodiment provides a kind of moment of torsion to determine method, apparatus and electric automobile, solves existing moment of torsion
Management method does not consider the application function that vehicle is currently opened according only to the calculating demand torque such as gear signal, causes electronic
The problem of moment of torsion of automobile output is difficult to meet current traveling demand.
As shown in figure 1, the embodiment provides a kind of moment of torsion to determine method, applied to electric automobile, including：
Step 101：The demand torque according to corresponding to current operating parameter, determine first object demand torque.
The current operating parameter may particularly include：Pedal aperture, motor speed and gear.
In the embodiment of the present invention, entire car controller receives the gear signal of shifter transmission by CAN lines, if current shelves
When position is P shelves or N shelves, first object demand torque is 0, if current gear is drive shift (D shelves, E shelves) or reverse gear (R shelves),
Follow the steps below：Entire car controller is according to gear signal, pedal aperture and motor speed from default drive shift moment of torsion MAP
First object demand torque corresponding to being searched in table or reverse gear moment of torsion MAP tables；Under drive shift, when the first object found
When the value of demand torque is more than 0, vehicle is in torque output state, if less than 0, vehicle is in moment of torsion recovery state；Falling
Under shelves, when the value of the first object demand torque found is less than 0, vehicle is in torque output state, if more than 0,
Vehicle is in moment of torsion recovery state；The drive shift moment of torsion MAP tables be under drive shift state, by the aperture of accelerator pedal by
0% to 100% is divided into multiple opening values, and motor speed is divided into 0 to wn to peak speed is rotated forward by reverse peak rotating speed
Multiple tachometer values, the opening value corresponds to form corresponding torque value with tachometer value.
Step 102：Judge whether the electric automobile opens default application function.
The default application function includes Anti-slip regulation function and/or unmanned function.The unmanned function includes：It is distant
Control drives function and adaptive cruise function.
Step 103：If the electric automobile opens default application function, the according to corresponding to the default application function
Two target requirement moments of torsion, the final demand moment of torsion of the electric automobile is determined, otherwise, according to the first object demand torque,
Determine the final demand moment of torsion of the electric automobile.
In the embodiment of the present invention, when electric automobile opens default application function, the according to corresponding to default application function
Two target requirement moments of torsion, determine the final demand moment of torsion of electric automobile so that final demand moment of torsion can meet that current presetting is answered
With function, and then meet the purpose of current traveling demand.
Further, above-mentioned steps 101 include：
If the electric automobile opens cruise function, by demand torque corresponding to cruise function and current fortune
Demand torque corresponding to row parameter is compared；
If demand torque corresponding to cruise function is more than demand torque corresponding to current operating parameter, constant speed is patrolled
Demand torque corresponding to boat function is defined as the first object demand torque, otherwise, by demand corresponding to current operating parameter
Moment of torsion is defined as the first object demand torque.
Here, the demand torque corresponding with cruise function of demand torque corresponding to current operating parameter is compared
Compared with one of larger in both selections to be used as first object demand torque.
Further, as shown in Fig. 2 above-mentioned steps 102 include：
Step 1021：It is corresponding according to the unmanned function if the electric automobile only opens unmanned function
Demand torque, determine the final demand moment of torsion of the electric automobile.
Step 1022：If the electric automobile only opens Anti-slip regulation function or opens unmanned function and drive simultaneously
Dynamic antiskid function, then the demand torque according to corresponding to the Anti-slip regulation function, determines that the final demand of the electric automobile is turned round
Square.
The unmanned function includes：Remote driving function and adaptive cruise function.Nobody is only opened in electric automobile
When driving function, it can first judge whether opening remote control drives function to electric automobile, if opening remote control drives function, according to remote control
Demand torque corresponding to driving function determines final demand moment of torsion, if non-opening remote control drives function, judges that electric automobile is
No unlatching adaptive cruise function, if adaptive cruise function is opened, according to demand torque corresponding to adaptive cruise function
Final demand moment of torsion is determined, final demand moment of torsion is otherwise determined according to first object demand torque.
When electric automobile opens electric stabilizing system ESP Anti-slip regulation TCS functions, the intervention of chassis moment of torsion, chassis is turned round
Square intervention is defined as vehicle priority and the higher moment of torsion intervention of security, horizontal according to current vehicle safety, and TCS functions are from car
Security reduces vehicle torque output.Therefore, only open Anti-slip regulation function in the electric automobile or open nothing simultaneously
When people drives function and Anti-slip regulation function, according to demand torque corresponding to Anti-slip regulation function, the electric automobile is determined
Final demand moment of torsion, it can effectively ensure that the security of vehicle.
Further, as shown in figure 3, after above-mentioned steps 103, in addition to：
Step 104：If the absolute value of the difference of the final demand moment of torsion and current output torque is more than predetermined torque ladder
Angle value, then torque smooth control processing is carried out to the final demand moment of torsion, obtain final output moment of torsion.
As a kind of optional implementation, the predetermined torque ladder is increased or decreased on the basis of current output torque
Angle value, the output torque after being updated；If the absolute value of the output torque and the difference of final demand moment of torsion after renewal is less than
The predetermined torque Grad, then be defined as final output moment of torsion by the output torque after renewal, otherwise, output in the updated
Continue to increase or decrease the predetermined torque Grad on the basis of moment of torsion, until the output torque after renewal is turned round with final demand
The absolute value of the difference of square is less than the predetermined torque Grad.
Specifically, it is operator demand's torque value (current time demand torque) to define TR, TL is moment output on vehicle
Torque value, TGN are the final output value after torque gradient is handled, and △ TN are the absolute value of TR and TL difference, and TG is current
Moment torque gradient value (scalar quantity), TGM are the torsion value that most increases that current motor allows.When △ TN are more than scalar quantity, to working as
Preceding output torque TG carries out ladder on the basis of the TL moments of torsion and is incremented by (successively decreasing) TGN near TR torque values, and the function realizes torsion
The preliminary smooth-going processing of square.
As another optional implementation, using default filter transfer function, the final demand moment of torsion is carried out
Torque smooth control processing, obtains final output moment of torsion.
Default filter transfer function can be specially y=(S/ (1+TS)) * x, to this preset filter transfer function carry out it is discrete
Processing, obtain control table is up to equation：yt=(T/ (Δ t+T)) * yt-1+(1/(Δt+T))*(xt-xt-1)；In formula：ytFor output
Torque value, T are filter factor (scalar quantity), and △ t are program circulating period (depending on actual conditions), yt-1Turned round for the upper cycle
Square output valve, xtFor current torque sampled value, xt-1For moment of torsion sampled value of upper cycle.
By being smoothed to final demand moment of torsion, i.e., to final demand moment of torsion disappear peak load processing, can be with
Ensure torque smooth control transition, prevent vehicle from drastically shaking, improve the comfortableness of vehicle driver in the process of moving.Separately
Outside, after the intervention of unmanned and chassis moment of torsion, vehicle torque can be taken over by other ECU completely for some time, but
Unmanned and chassis moment of torsion may be because moment of torsion irregularity causes vehicle drastically to be shaken when exiting, and therefore, the embodiment of the present invention is led to
Cross the torque value back production of upper cycle to chassis torque output and carry out torque smooth control processing, it can be ensured that torque smooth control transition.
Further, as shown in figure 4, the moment of torsion of the embodiment of the present invention is determined in method, the final demand moment of torsion is entered
The processing of row torque smooth control, after obtaining final output moment of torsion, in addition to：
Step 105：Judge whether the final output moment of torsion is more than the max. output torque of electric automobile；
Step 106：If the final output moment of torsion is less than the max. output torque of the electric automobile, and current torque makes
Energy state shows permission torque output, then exports the final output moment of torsion.
The moment of torsion exported in the embodiment of the present invention after the completion of final output torque arithmetic is vehicle demand torque, and the moment of torsion
Not meet the moment of torsion that Current vehicle can be provided, therefore, it is necessary to demand is turned round according to vehicle running state (such as battery electric quantity)
Square carries out a certain degree of limitation, or even zero torque output.Whether final output moment of torsion allows output also to need to be judged, the step
Suddenly directly determine whether vehicle allows to travel from vehicle security standpoint, such as：There are charging gun insertion, driving conditions in driving conditions
Middle vehicle has program to upgrade demand, pull-up, vehicle are in the hole etc. by force by user by vehicle EPB (electronics parking brake).
The moment of torsion of the embodiment of the present invention determines method, not only for the demand torque of user's stepping on accelerator pedal, but
Processing is filtered when being handled during by remote driving, adaptive cruise, the intervention of TCS moments of torsion, and above-mentioned operating mode being exited,
Ensure that vehicle transits to driver-operated torque smooth control transition by unmanned, prevent vehicle from drastically shaking, improve driver
Driving experience.
The embodiment of the present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program (instruction),
The program (instruction) realizes following steps when being executed by processor：
The demand torque according to corresponding to current operating parameter, determine first object demand torque；
Judge whether the electric automobile opens default application function；
If the electric automobile opens default application function, the second target need according to corresponding to the default application function
Moment of torsion is sought, determines the final demand moment of torsion of the electric automobile, otherwise, according to the first object demand torque, it is determined that described
The final demand moment of torsion of electric automobile.
Alternatively, following steps can also be realized when the program (instruction) is executed by processor：If the electric automobile is opened
Cruise function, then the demand torque corresponding with current operating parameter of demand torque corresponding to cruise function is compared
Compared with；
If demand torque corresponding to cruise function is more than demand torque corresponding to current operating parameter, constant speed is patrolled
Demand torque corresponding to boat function is defined as the first object demand torque, otherwise, by demand corresponding to current operating parameter
Moment of torsion is defined as the first object demand torque.
Alternatively, the default application function includes：Unmanned function and Anti-slip regulation function；
The program (instruction) can also realize following steps when being executed by processor：
If the electric automobile only opens unmanned function, turned round according to demand corresponding to the unmanned function
Square, determine the final demand moment of torsion of the electric automobile；
If the electric automobile only opens Anti-slip regulation function or opens unmanned function and Anti-slip regulation work(simultaneously
Can, then the demand torque according to corresponding to the Anti-slip regulation function, determine the final demand moment of torsion of the electric automobile.
Alternatively, following steps can also be realized when the program (instruction) is executed by processor：
If the absolute value of the difference of the final demand moment of torsion and current output torque is more than predetermined torque Grad, right
The final demand moment of torsion carries out torque smooth control processing, obtains final output moment of torsion.
Alternatively, following steps can also be realized when the program (instruction) is executed by processor：
The predetermined torque Grad is increased or decreased on the basis of current output torque, the output after being updated is turned round
Square；
If the absolute value of the output torque and the difference of final demand moment of torsion after renewal is less than the predetermined torque Grad,
The output torque after renewal is then defined as final output moment of torsion, otherwise, continues to increase on the basis of output torque in the updated
Add deduct less the predetermined torque Grad, until the absolute value of the output torque and the difference of final demand moment of torsion after renewal is small
In the predetermined torque Grad.
Alternatively, following steps can also be realized when the program (instruction) is executed by processor：
Using default filter transfer function, torque smooth control processing is carried out to the final demand moment of torsion, obtains final output
Moment of torsion.
Alternatively, following steps can also be realized when the program (instruction) is executed by processor：
Judge whether the final output moment of torsion is more than the max. output torque of electric automobile；
If the final output moment of torsion is less than the max. output torque of the electric automobile, and current torque enabled state table
Bright permission torque output, then export the final output moment of torsion.
Alternatively, pedal aperture, motor speed and gear.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moved
State random access memory (DRAM), other kinds of random access memory (RAM), read-only storage (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only storage (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic cassette tape, the storage of tape magnetic rigid disk or other magnetic storage apparatus
Or any other non-transmission medium, the information that can be accessed by a computing device available for storage.Define, calculate according to herein
Machine computer-readable recording medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
As shown in figure 5, embodiments of the invention additionally provide a kind of moment of torsion determining device, applied to electric automobile, including：
First determining module 501, for the demand torque according to corresponding to current operating parameter, determine that first object demand is turned round
Square；
First judge module 502, for judging whether the electric automobile opens default application function；
Second determining module 503, if default application function is opened for the electric automobile, according to the default application
Second target requirement moment of torsion corresponding to function, the final demand moment of torsion of the electric automobile is determined, otherwise, according to first mesh
Demand torque is marked, determines the final demand moment of torsion of the electric automobile.
As shown in fig. 6, the moment of torsion determining device of the embodiment of the present invention, first determining module 501 includes：
Comparison sub-module 5011, if cruise function is opened for the electric automobile, by cruise function pair
The demand torque answered is compared with demand torque corresponding to current operating parameter；
First determination sub-module 5012, if being more than current operating parameter pair for demand torque corresponding to cruise function
The demand torque answered, then demand torque corresponding to cruise function is defined as the first object demand torque, otherwise, will
Demand torque corresponding to current operating parameter is defined as the first object demand torque.
The moment of torsion determining device of the embodiment of the present invention, the default application function include：Unmanned function and driving are anti-
Sliding function；
Second determining module 503 includes：
Second determination sub-module 5031, if only opening unmanned function for the electric automobile, according to the nothing
Demand torque corresponding to people's driving function, determine the final demand moment of torsion of the electric automobile；
3rd determination sub-module 5032, if only opening Anti-slip regulation function for the electric automobile or opening nothing simultaneously
People drives function and Anti-slip regulation function, then the demand torque according to corresponding to the Anti-slip regulation function, determines the electronic vapour
The final demand moment of torsion of car.
The moment of torsion determining device of the embodiment of the present invention, it is characterised in that also include：
Processing module 504, if being more than for the final demand moment of torsion and the absolute value of the difference of current output torque pre-
If torque gradient value, then torque smooth control processing is carried out to the final demand moment of torsion, obtain final output moment of torsion.
The moment of torsion determining device of the embodiment of the present invention, the processing module 504 include：
Submodule 5041 is handled, for increasing or decreasing the predetermined torque gradient on the basis of current output torque
Value, the output torque after being updated；
4th determination sub-module 5042, if the absolute value for output torque and the difference of final demand moment of torsion after updating
Less than the predetermined torque Grad, then the output torque after renewal is defined as final output moment of torsion, otherwise, in the updated
Continue to increase or decrease the predetermined torque Grad on the basis of output torque, until the output torque after renewal is with finally needing
The absolute value of the difference of moment of torsion is asked to be less than the predetermined torque Grad.
The moment of torsion determining device of the embodiment of the present invention, the processing module 504 is used for using default filter transfer function, right
The final demand moment of torsion carries out torque smooth control processing, obtains final output moment of torsion.
The moment of torsion determining device of the embodiment of the present invention, in addition to：
Second judge module 505, for judging whether the final output moment of torsion is more than the maximum output torsion of electric automobile
Square；
Torque output module 506, if being less than the max. output torque of the electric automobile for the final output moment of torsion,
And current torque enabled state shows to allow torque output, then exports the final output moment of torsion.
The moment of torsion determining device of the embodiment of the present invention, the current operating parameter include：Pedal aperture, motor speed and shelves
Position.
The moment of torsion determining device of the embodiment of the present invention, the demand torque according to corresponding to current operating parameter, determines the first mesh
Mark demand torque；Judge whether the electric automobile opens default application function；If the electric automobile, which is opened to preset, applies work(
Can, then the second target requirement moment of torsion according to corresponding to the default application function, determines that the final demand of the electric automobile is turned round
Square, otherwise, according to the first object demand torque, determine the final demand moment of torsion of the electric automobile so that final demand
Moment of torsion can meet current default application function, and then meet the purpose of current traveling demand.
The embodiment of the present invention also provides a kind of electric automobile, including moment of torsion determining device as described above.
The embodiment of the present invention also provides a kind of electric automobile, including：Processor, memory and it is stored on the memory
And the computer program that can be run on the processor, the computer program are realized as described above during the computing device
Moment of torsion determines each process of embodiment of the method, and can reach identical technique effect, to avoid repeating, repeats no more here.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (19)
1. a kind of moment of torsion determines method, applied to electric automobile, it is characterised in that including：
The demand torque according to corresponding to current operating parameter, determine first object demand torque；
Judge whether the electric automobile opens default application function；
If the electric automobile opens default application function, turned round according to the second target requirement corresponding to the default application function
Square, the final demand moment of torsion of the electric automobile is determined, otherwise, according to the first object demand torque, determined described electronic
The final demand moment of torsion of automobile.
2. moment of torsion according to claim 1 determines method, it is characterised in that the need according to corresponding to current operating parameter
Moment of torsion is sought, the step of determining first object demand torque, including：
If the electric automobile opens cruise function, demand torque corresponding to cruise function and current operation are joined
Demand torque is compared corresponding to number；
If demand torque corresponding to cruise function is more than demand torque corresponding to current operating parameter, by cruise work(
Demand torque corresponding to energy is defined as the first object demand torque, otherwise, by demand torque corresponding to current operating parameter
It is defined as the first object demand torque.
3. moment of torsion according to claim 1 determines method, it is characterised in that the default application function includes：Nobody drives
Sail function and Anti-slip regulation function；
If the electric automobile opens default application function, the second target need according to corresponding to the default application function
Moment of torsion is sought, the step of determining the final demand moment of torsion of the electric automobile, including：
If the electric automobile only opens unmanned function, according to demand torque corresponding to the unmanned function, really
The final demand moment of torsion of the fixed electric automobile；
If the electric automobile only opens Anti-slip regulation function or opens unmanned function and Anti-slip regulation function simultaneously,
According to demand torque corresponding to the Anti-slip regulation function, the final demand moment of torsion of the electric automobile is determined.
4. moment of torsion according to claim 1 determines method, it is characterised in that determines that the final demand of the electric automobile is turned round
After square, in addition to：
If the absolute value of the difference of the final demand moment of torsion and current output torque is more than predetermined torque Grad, to described
Final demand moment of torsion carries out torque smooth control processing, obtains final output moment of torsion.
5. moment of torsion according to claim 4 determines method, it is characterised in that carries out moment of torsion to the final demand moment of torsion and puts down
Sliding processing, obtains final output moment of torsion, including：
The predetermined torque Grad, the output torque after being updated are increased or decreased on the basis of current output torque；
, will if the absolute value of the output torque and the difference of final demand moment of torsion after renewal is less than the predetermined torque Grad
Output torque after renewal is defined as final output moment of torsion, otherwise, continue on the basis of output torque in the updated increase or
The predetermined torque Grad is reduced, until the absolute value of the output torque after renewal and the difference of final demand moment of torsion is less than institute
State predetermined torque Grad.
6. moment of torsion according to claim 4 determines method, it is characterised in that carries out moment of torsion to the final demand moment of torsion and puts down
Sliding processing, obtaining final output moment of torsion includes：
Using default filter transfer function, torque smooth control processing is carried out to the final demand moment of torsion, obtains final output moment of torsion.
7. moment of torsion according to claim 4 determines method, it is characterised in that carries out moment of torsion to the final demand moment of torsion and puts down
Sliding processing, after obtaining final output moment of torsion, in addition to：
Judge whether the final output moment of torsion is more than the max. output torque of electric automobile；
If the final output moment of torsion is less than the max. output torque of the electric automobile, and current torque enabled state shows to permit
Perhaps torque output, then the final output moment of torsion is exported.
8. moment of torsion according to claim 1 determines method, it is characterised in that the current operating parameter includes：Pedal is opened
Degree, motor speed and gear.
A kind of 9. moment of torsion determining device, applied to electric automobile, it is characterised in that including：
First determining module, for the demand torque according to corresponding to current operating parameter, determine first object demand torque；
First judge module, for judging whether the electric automobile opens default application function；
Second determining module, if default application function is opened for the electric automobile, according to the default application function pair
The the second target requirement moment of torsion answered, the final demand moment of torsion of the electric automobile is determined, otherwise, according to the first object demand
Moment of torsion, determine the final demand moment of torsion of the electric automobile.
10. moment of torsion determining device according to claim 9, it is characterised in that first determining module includes：
Comparison sub-module, if cruise function is opened for the electric automobile, by demand corresponding to cruise function
Moment of torsion is compared with demand torque corresponding to current operating parameter；
First determination sub-module, if being more than demand corresponding to current operating parameter for demand torque corresponding to cruise function
Moment of torsion, then demand torque corresponding to cruise function is defined as the first object demand torque, otherwise, will currently run
Demand torque corresponding to parameter is defined as the first object demand torque.
11. moment of torsion determining device according to claim 9, it is characterised in that the default application function includes：Nobody drives
Sail function and Anti-slip regulation function；
Second determining module includes：
Second determination sub-module, if only opening unmanned function for the electric automobile, according to the unmanned work(
Demand torque corresponding to energy, determine the final demand moment of torsion of the electric automobile；
3rd determination sub-module, if only opening Anti-slip regulation function for the electric automobile or opening unmanned work(simultaneously
Can be with Anti-slip regulation function, then the demand torque according to corresponding to the Anti-slip regulation function, determines the final of the electric automobile
Demand torque.
12. moment of torsion determining device according to claim 9, it is characterised in that also include：
Processing module, if being more than predetermined torque ladder for the final demand moment of torsion and the absolute value of the difference of current output torque
Angle value, then torque smooth control processing is carried out to the final demand moment of torsion, obtain final output moment of torsion.
13. moment of torsion determining device according to claim 12, it is characterised in that the processing module includes：
Submodule is handled, for increasing or decreasing the predetermined torque Grad on the basis of current output torque, is obtained more
Output torque after new；
4th determination sub-module, if being less than for the output torque after updating and the absolute value of the difference of final demand moment of torsion described
Predetermined torque Grad, then the output torque after renewal is defined as final output moment of torsion, otherwise, output torque in the updated
On the basis of continue to increase or decrease the predetermined torque Grad, until output torque and final demand moment of torsion after renewal
The absolute value of difference is less than the predetermined torque Grad.
14. moment of torsion determining device according to claim 12, it is characterised in that the processing module is used for using default filter
Ripple transmission function, torque smooth control processing is carried out to the final demand moment of torsion, obtains final output moment of torsion.
15. moment of torsion determining device according to claim 12, it is characterised in that also include：
Second judge module, for judging whether the final output moment of torsion is more than the max. output torque of electric automobile；
Torque output module, if it is less than the max. output torque of the electric automobile for the final output moment of torsion, and currently
Moment of torsion enabled state shows permission torque output, then exports the final output moment of torsion.
16. moment of torsion determining device according to claim 9, it is characterised in that the current operating parameter includes：Pedal is opened
Degree, motor speed and gear.
A kind of 17. electric automobile, it is characterised in that including：Moment of torsion determining device as described in any one of claim 9 to 16.
A kind of 18. electric automobile, it is characterised in that including：Processor, memory and it is stored on the memory and can be in institute
The computer program run on processor is stated, the computer program is realized such as claim 1 to 8 during the computing device
Any one of moment of torsion the step of determining method.
19. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium
Program, realize that the moment of torsion as any one of claim 1 to 8 determines method when the computer program is executed by processor
The step of.
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| CN110126829A (en) * | 2019-03-29 | 2019-08-16 | 北京车和家信息技术有限公司 | Torque filter factor determines method, car-mounted terminal and vehicle |
| CN110375994A (en) * | 2019-07-25 | 2019-10-25 | 北京智行者科技有限公司 | Drive brake parameters automatic calibration method and device |
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| CN112644295A (en) * | 2020-12-31 | 2021-04-13 | 大运汽车股份有限公司 | Torque arbitration control method and torque arbitration control system for new energy commercial vehicle |
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