CN109263619A - Vehicle torque control method, apparatus and system - Google Patents
Vehicle torque control method, apparatus and system Download PDFInfo
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- CN109263619A CN109263619A CN201811018775.6A CN201811018775A CN109263619A CN 109263619 A CN109263619 A CN 109263619A CN 201811018775 A CN201811018775 A CN 201811018775A CN 109263619 A CN109263619 A CN 109263619A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
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Abstract
The present invention provides a kind of vehicle torque control methods, apparatus and system, it is related to the technical field of new-energy automobile, this method is applied to entire car controller, entire car controller is connect with TCS system communication, the above method includes: when the operating status for monitoring TCS system changes, determine the basic torque and target torque of current vehicle；Extract preset scalar quantity, calculating benchmark torque is to transfer coefficient when target torque transition；Using basic torque as starting point, the demand torque of current vehicle is calculated according to transfer coefficient；Export demand torque；When demand torque is consistent with target torque, stop the calculating process of demand torque, and using target torque as demand torque, and export target torque.Vehicle torque control method provided by the invention, apparatus and system have been effectively relieved current vehicle in TCS system activation rear vehicle and the phenomenon that pause and transition in rhythm or melody have occurred, while having also contributed to timely responding to the acceleration request of driver, and then improve the Experience Degree of driver.
Description
Technical field
The present invention relates to technical field of new energy, more particularly, to a kind of vehicle torque control method, device and are
System.
Background technique
With becoming increasingly popular for new-energy automobile, the owning amount of new-energy automobile is also increasing, and people are for new energy
The research of source automobile is also deepening continuously, and new-energy automobile is high because having small noise, pollution-free, zero-emission and energy conversion efficiency
The characteristics of, it is the important channel for solving urbanization auto-pollution outstanding problem.Developing new-energy automobile will be to adjustment CHINESE INDUSTRIES
Structure, the innovation ability and the market competitiveness for improving major fields, promote the coordinated development of economic society to exert far reaching influence.
And motor is the key components and parts of new-energy automobile and the power core of new-energy automobile, how to optimize and controls
The Motor torque of new-energy automobile processed exports, to the ability to work of new-energy automobile, extension battery and driver
Safeguard protection is very crucial.Especially for configured with TCS (Acceleration Slip Regulation, polling power controlling
System) system new-energy automobile, since the power output response speed of new-energy automobile is faster than vehicle powered by conventional energy,
If controlled new-energy automobile using vehicle powered by conventional energy the moment of torsion control logic after the activation of TCS system, hold very much
Easily there is the phenomenon that pause and transition in rhythm or melody, it is also difficult to which the driving request for responding driver reduces the Experience Degree of driver.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of vehicle torque control method, apparatus and system, on alleviating
State technical problem.
In a first aspect, the embodiment of the invention provides a kind of vehicle torque control methods, wherein this method is applied to vehicle
Controller, the entire car controller are connect with TCS system communication, and the above method includes: when the operating status hair for monitoring TCS system
When changing, the basic torque and target torque of current vehicle are determined；Preset scalar quantity is extracted, calculating benchmark is turned round
Square is to transfer coefficient when target torque transition；Using basic torque as starting point, the demand of current vehicle is calculated according to transfer coefficient
Torque exports demand torque；When demand torque is consistent with target torque, stop the calculating process of demand torque, and target is turned round
Square exports target torque as demand torque.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein
The operating status of TCS system occurs to include state of activation and unactivated state；When the operating status of TCS system is by unactivated state
When becoming state of activation, alternatively, determination monitors when the operating status of TCS system becomes unactivated state from state of activation
The operating status of TCS system changes.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides second of first aspect
Possible embodiment, wherein when the operating status of above-mentioned TCS system becomes state of activation from unactivated state, determination is worked as
The step of basic torque and target torque of vehicle in front includes: the driving torque of current automobile before obtaining the activation of TCS system；
Basic torque is set by the driving torque；And target torque is set by the output torque of TCS system.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein extract preset scalar quantity, calculating benchmark torque is to transition system when target torque transition
Several steps includes: to extract preset first scalar quantity, and should when above-mentioned target torque is greater than said reference torque
The corresponding wheel speed coefficient of variation of first scalar quantity；Calculating benchmark torque is to First Transition coefficient when target torque transition, wherein
First Transition coefficient is the product of the first scalar quantity and wheel speed coefficient of variation；When above-mentioned target torque is less than said reference torque
When, extract preset second scalar quantity and the corresponding wheel speed coefficient of variation of second scalar quantity；Calculating benchmark torque to
The second transfer coefficient when target torque transition, wherein the second transfer coefficient is the second scalar quantity of institute and wheel speed difference system
Several products.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein when the operating status of TCS system becomes unactivated state from state of activation, the determination is worked as
The step of basic torque and target torque of vehicle in front includes: to obtain the corresponding minimum torque threshold value of above-mentioned TCS system, will
The minimum torque threshold value is set as basic torque；And above-mentioned TCS system is obtained under unactivated state, current automobile is driven
Torque is sailed, sets target torque for the driving torque of the current automobile.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein extract preset scalar quantity, calculating benchmark torque is to transition system when target torque transition
Several steps includes: to extract preset third scalar quantity when above-mentioned target torque is greater than said reference torque；By this
Three scalar quantities are set as basic torque to third transfer coefficient when target torque transition；When above-mentioned target torque is less than above-mentioned base
When quasi- torque, preset 4th scalar quantity is extracted, sets basic torque to target torque transition for the 4th scalar quantity
When the 4th transfer coefficient.
With reference to first aspect and first to the 5th kind of possible embodiment of first aspect, the embodiment of the present invention mention
The 6th kind of possible embodiment of first aspect is supplied, wherein the above method further include: obtain the vehicle wheel of current vehicle
Speed obtains maximum wheel speed value and minimum wheel speed value in wheel wheel speed, calculates the first sampling wheel speed difference；And calculate remaining
Difference is set the second sampling wheel speed difference by the difference of two wheel wheel speeds；According to above-mentioned first sampling wheel speed difference and upper
The second sampling wheel speed difference is stated to demarcate above-mentioned wheel speed coefficient of variation.
Second aspect, the embodiment of the present invention also provide a kind of vehicle torque control device, wherein the device is set to vehicle
Controller, entire car controller are connect with TCS system communication, which comprises determining that module, monitor TCS system for working as
When operating status changes, the basic torque and target torque of current vehicle are determined；First computing module, for extracting
Preset scalar quantity, calculating benchmark torque is to transfer coefficient when target torque transition；Second computing module, be used for more than
Stating basic torque is starting point, and the demand torque of current vehicle is calculated according to above-mentioned transfer coefficient；First output module, for exporting
Demand torque；Second output module, for stopping the calculating process of demand torque when demand torque is consistent with target torque,
And using the target torque as demand torque, and export target torque.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
The operating status for stating TCS system occurs to include state of activation and unactivated state；Determining module is used for: when the operation of TCS system
When state becomes state of activation from unactivated state, alternatively, the operating status when TCS system becomes inactive shape from state of activation
When state, determination monitors that the operating status of the TCS system changes.
The third aspect, the embodiment of the present invention also provide a kind of vehicle torque control system, wherein the system includes vehicle control
Device processed, and the TCS system with entire car controller communication connection；The entire car controller includes memory and processor, is deposited
Reservoir is used to store the program for supporting processor to execute the above method, and processor is configurable for storing in execution memory
Program.
The embodiment of the present invention bring it is following the utility model has the advantages that
A kind of vehicle torque control method provided in an embodiment of the present invention, apparatus and system, can monitor TCS system
Operating status when changing, determine the basic torque and target torque of current vehicle, and calculate the demand of current vehicle
Torque exports the target torque when demand torque is consistent with target torque, effectively slow to control the power output of the vehicle
It has solved current vehicle and the phenomenon that pause and transition in rhythm or melody has occurred in TCS system activation rear vehicle, while having also contributed to timely responding to adding for driver
Speed request, and then improve the Experience Degree of driver.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those skilled in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of vehicle torque control method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another vehicle torque control method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another vehicle torque control method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of vehicle torque control device provided in an embodiment of the present invention；
Fig. 5 is a kind of structural block diagram of vehicle torque control system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those skilled in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, new-energy automobile, such as electric car, after the activation of TCS system, moment of torsion control is according to powered by conventional energy
What the operating mode of vehicle carried out, it often leads to vehicle and the phenomenon that pause and transition in rhythm or melody occurs in the driving procedure after the activation of TCS system,
It is difficult to timely respond to the acceleration request of driver.Based on this, the embodiment of the invention provides a kind of vehicle torque control methods, dress
It sets and system, moment of torsion control of the currently existing new-energy automobile after the activation of TCS system can be alleviated according to vehicle powered by conventional energy
Operating mode when carrying out full-vehicle control, the phenomenon that being easy to appear pause and transition in rhythm or melody.
For convenient for understanding the present embodiment, first to a kind of vehicle moment of torsion control side disclosed in the embodiment of the present invention
Method describes in detail.
Vehicle torque control method provided in an embodiment of the present invention, is applied to entire car controller, and entire car controller is also referred to as
VCU (Vehicle Control Unit, VCU, control unit for vehicle), is the regulation center of new-energy automobile subsystems,
To coordinate and manage the operating status of vehicle, in general, entire car controller can be according to accelerator pedal position, gear, brake pedal force
The operation of equal drivers is intended to and the charged of battery calculates required motor output torque etc., to coordinate each power
The movement of component ensures the normally travel of electric car.Therefore, the moment of torsion control logic of entire car controller directly affects vehicle
State in driving procedure.
TCS system, also referred to as traction control system (Traction Control System, TCS), its effect is to make
Automobile can obtain optimal tractive force under various driving conditions, its working principle is that by installing wheel speed sensing in wheel
Device, if there is wheel to have skidded, cooperates anti-blocking brake system (Antilock Brake to monitor the working condition of vehicle
System, ABS) and whole-control system vehicle is controlled, prevent to lose control of one's vehicle.
Vehicle torque control method provided in an embodiment of the present invention can be applied to entire car controller, also, the full-vehicle control
Device is connect with TCS system communication.A kind of flow chart of vehicle torque control method as shown in Figure 1, this method include following step
It is rapid:
Step S102 determines the basic torque of current vehicle when the operating status for monitoring TCS system changes,
And target torque.
When specific implementation, basic torque and target torque are obtained when being changed according to TCS system running state
Instantaneous value.
Step S104, extracts preset scalar quantity, and calculating benchmark torque is to transfer coefficient when target torque transition.
When specific implementation, there is positive value according to the different preset scalar quantities extracted of TCS system mode are not identical yet
There is negative value, and scalar quantity is all fixed value.When basic torque when target torque transition to needing entire car controller to calculate this
Transfer coefficient, scalar quantity participate in the calculating process of the transfer coefficient.
Step S106 calculates the demand torque of current vehicle according to transfer coefficient using basic torque as starting point.
Step S108 exports demand torque.
The basic torque obtained when wherein, using TCS system state change is as starting point, and then VCU is according to transfer coefficient meter
Torque required for current vehicle is calculated, and exports the demand torque.
Step S110 stops the calculating process of demand torque, and target is turned round when demand torque is consistent with target torque
Square exports target torque as demand torque.
Specifically, when TCS system mode changes, using determining basic torque as the output starting point of demand torque,
Output terminal of the target torque as demand torque, basic torque is according to transfer coefficient to target torque transition, and VCU is according to transition
Coefficient calculates torque required for current vehicle, and when demand torque is consistent with target torque, VCU will stop the meter of demand torque
Calculation process, final output target torque.
A kind of vehicle torque control method provided in an embodiment of the present invention, can be in the operating status for monitoring TCS system
When changing, the basic torque and target torque of current vehicle are determined, and calculate the demand torque of current vehicle, when need
When asking torque consistent with target torque, the target torque is exported, to control the power output of the vehicle, has been effectively relieved and has worked as front truck
There is the phenomenon that pause and transition in rhythm or melody in TCS system activation rear vehicle, while also contributing to timely responding to the acceleration request of driver, in turn
Improve the Experience Degree of driver.
Wherein, the operating status of TCS system occurs to include state of activation and unactivated state；When the operation shape of TCS system
When state becomes state of activation from unactivated state, alternatively, the operating status when TCS system becomes unactivated state from state of activation
When, it can determine and monitor that the operating status of above-mentioned TCS system changes.
In general, TCS system can monitor the wheel speed sensors being mounted at wheel, the working condition of vehicle wheel speed is monitored,
If there is wheel to have skidded, cooperates ABS system and whole-control system to control vehicle, prevent to lose control of one's vehicle.For example,
When the wheel speed of the four wheels of new-energy automobile reaches certain difference, the operating status of TCS system is just become from unactivated state
State of activation, when the wheel speed difference of the four wheels of new-energy automobile is restored to automobile normal operating condition, the fortune of TCS system
Row state just becomes unactivated state from state of activation.
Specifically, when the operating status of TCS system becomes state of activation from unactivated state, above-mentioned determining current vehicle
Basic torque and target torque the step of include: obtain TCS system activation before, the driving torque of current automobile；It will drive
Torque is set as basic torque；And target torque is set by the output torque of TCS system.
When specific implementation, TCS activation moment driving torque need to be obtained, is turned round the driving torque as the benchmark of current vehicle
Square.In general, entire car controller VCU can sum the driving torque of driver and the braking torque of driver, can obtain
Driving torque is stated, wherein driving torque is positive value, and braking torque is negative value.
Specifically, the process for obtaining the driving torque of driver may include: to obtain accelerator pedal aperture and speed, so
Afterwards according to preset driver's driving force demand schedule, the driving torque of accelerator pedal aperture and the corresponding driver of speed is obtained.
Further, the process for obtaining the braking torque of driver may include: acquisition speed, according to preset speedometer, obtain initial
Torque value；Then brake pedal aperture is obtained, according to preset brake pedal aperture table, obtains brake pedal depth value；Later
Obtain battery dump energy ratio；To initial torque value, brake pedal depth value and battery dump energy ratio quadrature, can obtain
To the braking torque of driver.
Further, after above-mentioned TCS system activation, therefore the torque that output torque is usually fixed can be arranged
For target torque.
When TCS becomes state of activation from unactivated state in order to facilitate understanding, the control process of vehicle torque, Fig. 2 shows
Another flow chart of vehicle torque control method, comprising the following steps:
Step S202: it when the operating status of TCS system becomes state of activation from unactivated state, obtains TCS system and swashs
Before work, the driving torque of current automobile；
Step S204: target torque is set by the output torque of TCS system；
Step S206: when target torque is greater than basic torque, preset first scalar quantity and the first mark are extracted
Quantitative corresponding wheel speed coefficient of variation；
Step S208: calculating benchmark torque is to First Transition coefficient when target torque transition, wherein First Transition coefficient
For the product of the first scalar quantity and wheel speed coefficient of variation；
For example, indicating the first scalar quantity with a, the corresponding wheel speed coefficient of variation of first scalar quantity a is A, at this point, benchmark is turned round
Square to First Transition coefficient when target torque transition be the first scalar quantity a and wheel speed coefficient of variation A product, i.e. a*A；
Step S210: when target torque is less than basic torque, preset second scalar quantity and the second mark are extracted
Quantitative corresponding wheel speed coefficient of variation；
Step S212: calculating benchmark torque is to the second transfer coefficient when target torque transition, wherein the second transfer coefficient
For the product of the second scalar quantity and wheel speed coefficient of variation.
For example, indicating the second scalar quantity with b, the corresponding wheel speed coefficient of variation of second scalar quantity b is A1, at this point, benchmark
Torque to the second transfer coefficient when target torque transition be the second scalar quantity b and wheel speed coefficient of variation A1 product, i.e. b*A1；
Step S214: using basic torque as starting point, the demand torque of current vehicle, output are calculated according to above-mentioned transfer coefficient
The demand torque；
Step S216: when demand torque is consistent with target torque, stop the calculating process of demand torque, and target is turned round
Square exports the target torque as demand torque.
Specifically, when target torque is greater than basic torque, can be with basic torque using First Transition coefficient as slope
Starting point is gradually increased the demand torque, until when the demand torque is equal to target torque；
Similarly, when target torque is less than basic torque, can be with basic torque using the second transfer coefficient as slope
Point is gradually reduced the demand torque, until when the demand torque is equal to target torque；
It is set as demand torque when demand torque is equal to target torque, then by target torque, to control the output of motor
Torque makes Motor torque in the process of gradually gradual change, effectively prevents the pause and transition in rhythm or melody sense that torque jump occurs, and then ensure that driving
The ride comfort of member.
Further, Fig. 3 shows the flow chart of another vehicle torque control method, describes TCS system by activation shape
When state becomes unactivated state, the control process of vehicle torque, as shown in Figure 3, comprising the following steps:
Step S302: when the operating status of TCS system becomes unactivated state from state of activation, TCS system pair is obtained
The minimum torque threshold value is set basic torque by the minimum torque threshold value answered；
In general, the minimum torque threshold value can be stored in advance in entire car controller, in order to be calculated.Specific implementation
When, which can be close to 0 definite value, can specifically carry out equipment according to the actual situation, and the present invention is implemented
Example is not limited this.
Step S304: TCS system is obtained under unactivated state, the driving torque of current automobile, by the current automobile
It drives torque and is set as target torque；
Step S306: when target torque is greater than basic torque, preset third scalar quantity is extracted, by the third mark
Quantitative setting is benchmark torque to third transfer coefficient when target torque transition；
For example, indicate third scalar quantity with c, at this point, basic torque is to third transfer coefficient when target torque transition
It can be expressed as c；
Step S308: when target torque is less than basic torque, extracting preset 4th scalar quantity, by the 4th mark
Quantitative setting is benchmark torque to the 4th transfer coefficient when target torque transition；
For example, indicate the 4th scalar quantity with d, at this point, basic torque is to the 4th transfer coefficient when target torque transition
It can be expressed as d；
Step S310: using basic torque as starting point, the demand torque of current vehicle, output are calculated according to above-mentioned transfer coefficient
The demand torque；
Step S312: when demand torque is consistent with target torque, stop the calculating process of demand torque, and target is turned round
Square exports the target torque as demand torque.
Specifically, when TCS system becomes unactivated state from state of activation, the demand torque of motor at this time can be with
The slope limit value that third scalar quantity or the 4th scalar quantity change as demand torque makes Motor torque output keep linear and becomes
Change, guarantee ride comfort, vehicle runs smoothly no pause and transition in rhythm or melody sense.
In actual use, above-mentioned first scalar quantity, the second scalar quantity, third scalar quantity or the 4th scalar quantity are all
The physical quantity that can be demarcated is demarcated by way of emulating or modeling in actual use, e.g., different vehicles or
Different engine model etc. can have different scalar quantities.
Further, the corresponding wheel speed coefficient of variation of above-mentioned first scalar quantity and the corresponding wheel speed difference of the second scalar quantity
Coefficient can also be demarcated according to actual vehicle etc., for ease of calculation, in general, the corresponding difference in wheel of the first scalar quantity
Identical physical quantity, the mark of wheel speed coefficient of variation can be set into different coefficient and the corresponding wheel speed coefficient of variation of the second scalar quantity
Determine process, the wheel wheel speed that can be acquired by the way that the wheel speed sensors of wheel are arranged in carries out.
Specifically, the calibration process of wheel speed coefficient of variation may comprise steps of: the wheel wheel speed of current vehicle is obtained,
The maximum wheel speed value and minimum wheel speed value in wheel wheel speed are obtained, the first sampling wheel speed difference is calculated；And calculate other two
Difference is set the second sampling wheel speed difference by the difference of wheel wheel speed；According to the first sampling wheel speed difference and the second sampling wheel
Speed difference value demarcates wheel speed coefficient of variation.For example, sampling the more of wheel speed difference according to the first sampling wheel speed difference and second
A numerical value can establish calibration scale, and the horizontal axis and number axis of gauge outfit can be corresponding sampling wheel speed difference, and the content in table can
To be the first sampling wheel speed difference and the corresponding wheel speed coefficient of variation of the second sampling wheel speed difference.
When specific implementation, above-mentioned first scalar quantity, the second scalar quantity, third scalar quantity or the 4th are gauged calibrated
The calibration process of journey and wheel speed coefficient of variation can according to the actual situation, and be realized, the present invention with reference to correlation technique data
Embodiment is not limited this.
Corresponding and vehicle torque control method provided by the above embodiment, the embodiment of the invention also provides a kind of torsions of vehicle
Square control device, a kind of structural schematic diagram of vehicle torque control device as shown in Figure 4, the device are set to full-vehicle control
Device, entire car controller are connect with TCS system communication, a kind of structural schematic diagram of vehicle torque control device as shown in Figure 4, should
Device includes:
Determining module 40, for determining the benchmark of current vehicle when the operating status for monitoring TCS system changes
Torque and target torque；
First computing module 41, for extracting preset scalar quantity, calculating benchmark torque is to when target torque transition
Transfer coefficient；
Second computing module 42, for being turned round according to the demand that transfer coefficient calculates current vehicle using basic torque as starting point
Square；
First output module 43, for exporting the demand torque；
Second output module 44, for stopping the calculating of demand torque when the demand torque is consistent with target torque
Process, and using target torque as demand torque, export target torque.
Specifically, the operating status of above-mentioned TCS system occurs to include state of activation and unactivated state；Above-mentioned determining module
For: when the operating status of TCS system becomes state of activation from unactivated state, alternatively, when TCS system operating status by
When state of activation becomes unactivated state, determination monitors that the operating status of TCS system changes.
Vehicle torque control device provided in an embodiment of the present invention, with vehicle torque control method provided by the above embodiment
Technical characteristic having the same reaches identical technical effect so also can solve identical technical problem.
The embodiment of the invention also provides a kind of vehicle torque control system, which includes entire car controller, Yi Jiyu
The TCS system of entire car controller communication connection.
Specifically, which includes processor and memory, and memory supports processor to execute for storing
The program of embodiment the method is stated, the processor is configured to for executing the program stored in the memory.
A kind of structural block diagram of vehicle torque control system shown in Figure 5, comprising: processor 500, memory 501,
Bus 502 and communication interface 503, the processor 500, communication interface 503 and memory 501 are connected by bus 502；Processing
Device 500 is for executing the executable module stored in memory 501, such as computer program.
Wherein, memory 501 may include high-speed random access memory (RAM, Random Access Memory),
It may further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By extremely
A few communication interface 503 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can be used internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 502 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, number
According to bus, control bus etc..Only to be indicated with a four-headed arrow in Fig. 5, it is not intended that an only bus convenient for indicating
Or a type of bus.
Wherein, memory 501 is for storing program, and the processor 500 executes the journey after receiving and executing instruction
Sequence, the vehicle torque control method that aforementioned any embodiment of the embodiment of the present invention discloses can be applied in processor 500, or
It is realized by processor 500.
Processor 500 may be a kind of IC chip, the processing capacity with signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 500 or the instruction of software form.On
The processor 500 stated can be general processor, including central processing unit (Central Processing Unit, abbreviation
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute sheet
Disclosed each method, step and logic diagram in inventive embodiments.General processor can be microprocessor or the processing
Device is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in
Hardware decoding processor executes completion, or in decoding processor hardware and software module combination execute completion.Software mould
Block can be located at random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable storage
In the storage medium of this fields such as device, register maturation.The storage medium is located at memory 501, and processor 500 reads memory
Information in 501, in conjunction with the step of its hardware completion above method.
The computer program product of vehicle torque control system provided by the embodiment of the present invention, including store program generation
The computer readable storage medium of code, the instruction that said program code includes can be used for executing previous methods as described in the examples
Method, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
Finally, it should be noted that above embodiments, only a specific embodiment of the invention, to illustrate skill of the invention
Art scheme, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to the present invention into
Go detailed description, it should be understood by those skilled in the art that: anyone skilled in the art takes off in the present invention
In the technical scope of dew, it can still modify to technical solution documented by previous embodiment or can readily occur in change
Change or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make relevant art
Scheme essence be detached from technical solution of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of vehicle torque control method, which is characterized in that the method is applied to entire car controller, the entire car controller
It is connect with TCS system communication, which comprises
When the operating status for monitoring the TCS system changes, determine that the basic torque of current vehicle and target are turned round
Square；
Preset scalar quantity is extracted, calculates the basic torque to the transfer coefficient when target torque transition；
Using the basic torque as starting point, the demand torque of the current vehicle is calculated according to the transfer coefficient；
Export the demand torque；
When the demand torque is consistent with the target torque, stop the calculating process of the demand torque, and by the mesh
Torque is marked as the demand torque, and exports the target torque.
2. the method according to claim 1, wherein the operating status of the TCS system occurs to include activation shape
State and unactivated state；
When the operating status of the TCS system becomes state of activation from unactivated state, alternatively, working as the fortune of the TCS system
When row state becomes unactivated state from state of activation, determination monitors that the operating status of the TCS system changes.
3. according to the method described in claim 2, it is characterized in that, when the operating status of the TCS system is by unactivated state
When becoming state of activation, the step of basic torque and target torque of the determining current vehicle, includes:
Before obtaining the TCS system activation, the driving torque of the current automobile；
Basic torque is set by the driving torque；And target torque is set by the output torque of the TCS system.
4. according to the method described in claim 3, it is characterized in that, the preset scalar quantity of extraction, calculates the base
Quasi- torque includes: to the step of transfer coefficient when the target torque transition
When the target torque is greater than the basic torque, preset first scalar quantity and first mark are extracted
Quantitative corresponding wheel speed coefficient of variation；
The basic torque is calculated to the First Transition coefficient when target torque transition, wherein the First Transition coefficient
For the product of first scalar quantity and the wheel speed coefficient of variation；
When the target torque is less than the basic torque, preset second scalar quantity and second mark are extracted
Quantitative corresponding wheel speed coefficient of variation；
The basic torque is calculated to the second transfer coefficient when the target torque transition, wherein second transfer coefficient
For the product of second scalar quantity and the wheel speed coefficient of variation.
5. according to the method described in claim 2, it is characterized in that, the operating status when the TCS system is become by state of activation
When for unactivated state, the step of basic torque and target torque of the determining current vehicle, includes:
The corresponding minimum torque threshold value of the TCS system is obtained, sets basic torque for the minimum torque threshold value；And
The TCS system is obtained under unactivated state, the driving torque of the current automobile, by the driving torque of the current automobile
It is set as target torque.
6. according to the method described in claim 5, it is characterized in that, the preset scalar quantity of extraction, calculates the base
Quasi- torque includes: to the step of transfer coefficient when the target torque transition
When the target torque is greater than the basic torque, preset third scalar quantity is extracted；The third is demarcated
Amount is set as the basic torque to the third transfer coefficient when target torque transition；
When the target torque is less than the basic torque, preset 4th scalar quantity is extracted, by the 4th calibration
Amount is set as the basic torque to the 4th transfer coefficient when the target torque transition.
7. described in any item methods according to claim 1~6, which is characterized in that the method also includes:
The wheel wheel speed for obtaining the current vehicle obtains maximum wheel speed value and minimum wheel speed value in the wheel wheel speed, meter
Calculate the first sampling wheel speed difference；And the difference of wheel wheel speed described in other two is calculated, second, which is set, by the difference adopts
Sample wheel speed difference；
The wheel speed coefficient of variation is demarcated according to the first sampling wheel speed difference and the second sampling wheel speed difference.
8. a kind of vehicle torque control device, which is characterized in that described device is set to entire car controller, the entire car controller
It is connect with TCS system communication, described device includes:
Determining module, for when the operating status for monitoring the TCS system changes, determining that the benchmark of current vehicle is turned round
Square and target torque；
First computing module calculates the basic torque to the target torque transition for extracting preset scalar quantity
When transfer coefficient；
Second computing module, for calculating the current vehicle according to the transfer coefficient using the basic torque as starting point
Demand torque；
First output module, for exporting the demand torque；
Second output module, for stopping the meter of the demand torque when the demand torque is consistent with the target torque
Calculation process, and using the target torque as the demand torque, and export the target torque.
9. device according to claim 8, which is characterized in that the operating status of the TCS system occurs to include activation shape
State and unactivated state；The determining module is used for:
When the operating status of the TCS system becomes state of activation from unactivated state, alternatively, working as the fortune of the TCS system
When row state becomes unactivated state from state of activation, determination monitors that the operating status of the TCS system changes.
10. a kind of vehicle torque control system, which is characterized in that the system comprises entire car controllers, and with the vehicle
The TCS system of controller communication connection；
The entire car controller includes memory and processor, and the memory supports processor perform claim to want for storing
The program of any one of 1 to 7 the method is sought, the processor is configured to for executing the program stored in the memory.
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| CN112265543A (en) * | 2020-09-25 | 2021-01-26 | 北汽福田汽车股份有限公司 | Method and device for adjusting automobile torque and automobile |
| CN112622856A (en) * | 2020-12-25 | 2021-04-09 | 中国第一汽车股份有限公司 | Regenerative braking method and device for hybrid power assembly rack, vehicle and medium |
| CN113619560A (en) * | 2021-09-06 | 2021-11-09 | 中国第一汽车股份有限公司 | Method and device for controlling output torque of automobile, electronic equipment and medium |
| CN113858973A (en) * | 2021-10-29 | 2021-12-31 | 上海拿森汽车电子有限公司 | Torque correction method, vehicle, and computer-readable storage medium |
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| CN112622856A (en) * | 2020-12-25 | 2021-04-09 | 中国第一汽车股份有限公司 | Regenerative braking method and device for hybrid power assembly rack, vehicle and medium |
| CN112622856B (en) * | 2020-12-25 | 2022-02-08 | 中国第一汽车股份有限公司 | Regenerative braking method and device for hybrid power assembly rack, vehicle and medium |
| CN113619560A (en) * | 2021-09-06 | 2021-11-09 | 中国第一汽车股份有限公司 | Method and device for controlling output torque of automobile, electronic equipment and medium |
| CN113858973A (en) * | 2021-10-29 | 2021-12-31 | 上海拿森汽车电子有限公司 | Torque correction method, vehicle, and computer-readable storage medium |
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| CN109263619B (en) | 2020-07-07 |
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