CN107826114A - Adjust the method, apparatus and vehicle of drive system fan-out capability limit value - Google Patents
Adjust the method, apparatus and vehicle of drive system fan-out capability limit value Download PDFInfo
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- CN107826114A CN107826114A CN201711056996.8A CN201711056996A CN107826114A CN 107826114 A CN107826114 A CN 107826114A CN 201711056996 A CN201711056996 A CN 201711056996A CN 107826114 A CN107826114 A CN 107826114A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
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- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of this disclosure relates to method, apparatus and vehicle for adjusting drive system fan-out capability limit value.Due to being more than each moment of rated power in the real output of drive system, done work the part of the difference of the real output of drive system and its rated power, drive system will be caused to heat up, all influence the size of the temperature of current time drive system, so the embodiment of the present disclosure adds up to history ramp case, then determined whether to adjust drive system fan-out capability limit value according to accumulated result, the method that thus embodiment of the present disclosure provides can more adjust drive system fan-out capability limit value in time, the method provided using the embodiment of the present disclosure, the drive system can be made under the situation of not excess temperature, its maximum driveability is given play to, meets the needs of driver drives vehicle under different operating modes.
Description
Technical field
This disclosure relates to technical field of vehicle, in particular it relates to a kind of method for adjusting drive system fan-out capability limit value,
Device and vehicle.
Background technology
Under normal circumstances, in the process of moving, the condition of road surface travelled according to vehicle, driver can select in difference vehicle
Operating mode under drive vehicle, such as：In the case of road surface evenness or the stream of people, wagon flow are less, driver can pass through vehicle
Gear and accelerator pedal make vehicle be given it the gun；In the case where road surface is tortuous or the stream of people, wagon flow are larger, driver
Vehicle can be made to carry out Reduced Speed Now by the gear and decelerator pedal of vehicle.
In the accelerator of vehicle, drive system needs to export larger power output, so that the speed of vehicle traveling
Increase.In the moderating process of vehicle, power output that drive system need not be too big.Therefore, the reality of the drive system of vehicle
Border power output is understood the size of demand power of the following vehicle under different operating modes and changed, to meet driver in difference
The demand of vehicle is driven under operating mode.
The content of the invention
The purpose of the disclosure be to provide it is a kind of adjust drive system fan-out capability limit value method, apparatus and vehicle, with gram
Take problem present in correlation technique.
To achieve these goals, according to the first aspect of the embodiment of the present disclosure, there is provided one kind adjustment drive system output
The method of ability limit value, including：
Since the real output of the drive system is more than the rated power of the drive system for the first time, to described
The part of the real output of drive system and the difference of rated power, which is done work, to be added up, and determines the accumulative knot at current time
Fruit；
When the accumulated result at the current time is more than the first predetermined threshold value, by the drive system fan-out capability limit value
It is adjusted to using the rated power as the output upper limit.
Alternatively, the rated power for being more than the drive system for the first time from the real output of the drive system is opened
Begin, the part of the difference of real output and rated power to the drive system, which is done work, to be added up, it is determined that when current
The accumulated result at quarter, including：
Calculate the value that the part of the difference of the real output of drive system and rated power described in each moment is done work
With the result of product of the weight factor corresponding to the moment, the result of product is added up；
Weight factor corresponding to each moment, according to the when progress being separated by between the moment and the current time
Row determines.
Alternatively, the weight factor corresponding to each moment be separated by between the moment and the current time when
Long growth and reduce, the span of weight factor is more than or equal to 0 and less than or equal to 1.
Alternatively, by the drive system fan-out capability limit value be adjusted to using the rated power as output the upper limit after,
Also include：
After being continued for some time using the rated power as the output upper limit, if the accumulated result at current time is less than second
During predetermined threshold value, cancel limitation of the rated power for the output upper limit.
Alternatively, by the drive system fan-out capability limit value be adjusted to using the rated power as output the upper limit after,
Also include：
Duration of the statistics using the rated power as the output upper limit；
When the duration is more than three predetermined threshold values, cancel limitation of the rated power for the output upper limit.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of device for adjusting drive system fan-out capability limit value, institute
Stating device includes：
Accumulation module, it is configured as the volume for being more than the drive system for the first time from the real output of the drive system
Determine power to start, the part of the difference of real output and rated power to the drive system, which is done work, to be added up, really
Determine the accumulated result at current time；
First adjusting module, it is configured as when the accumulated result at the current time is more than the first predetermined threshold value, by institute
Drive system fan-out capability limit value is stated to be adjusted to using the rated power as the output upper limit.
Alternatively, the accumulation module includes：
Accumulative submodule, be configured as calculating the real output of drive system described in each moment and rated power it
The result of product of the value that the part of difference is done work and the weight factor corresponding to the moment, adds up to the result of product；
Weight factor corresponding to each moment, according to the when progress being separated by between the moment and the current time
Row determines.
Alternatively, described device also includes：
Second adjusting module, it is configured as after being continued for some time using the rated power as the output upper limit, if currently
When the accumulated result at moment is less than the second predetermined threshold value, cancel limitation of the rated power for the output upper limit.
Alternatively, described device also includes：
Statistical module, it is configured as duration of the statistics using the rated power as the output upper limit；
3rd adjusting module, it is configured as when the duration is more than three predetermined threshold values, cancels the specified work(
Rate is the limitation of the output upper limit.
According to the third aspect of the embodiment of the present disclosure, there is provided a kind of vehicle, including：
Drive system, and the dress of the adjustment drive system fan-out capability limit value described in the second aspect of the embodiment of the present disclosure
Put.
The method of the determination fan-out capability limit value provided using the embodiment of the present disclosure, the real-time accumulated drivetrain of entire car controller
The part of the real output of system and the difference of rated power is done work, and in real time by accumulated result compared with the first predetermined threshold value
Compared with when the accumulated result is more than the first predetermined threshold value, the drive system fan-out capability limit value is adjusted to its rated power
To export the upper limit.Due to being more than each moment of rated power, the reality of drive system in the real output of drive system
The part of power output and the difference of its rated power is done work, and can all cause drive system to heat up, and all influences current time driving
The size of the temperature of system, so the embodiment of the present disclosure adds up to history ramp case, then determined according to accumulated result
Whether drive system fan-out capability limit value is adjusted, thus the method that the embodiment of the present disclosure provides can more adjust driving in time
System fan-out capability limit value, the method provided using the embodiment of the present disclosure, can make the drive system under the situation of not excess temperature, send out
Its maximum driveability is shot, meets the needs of driver drives vehicle under different operating modes.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the method for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.
Fig. 2 is a kind of schematic diagram for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.
Fig. 3 is a kind of block diagram of the device for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explained the disclosure, is not limited to the disclosure.
In order that drive system in the case of not excess temperature, has given play to the power performance of drive system as far as possible, meet
Driver drives the demand of vehicle under different operating modes, and the embodiment of the present disclosure provides a kind of adjustment drive system fan-out capability limit value
Method, refer to Fig. 1, Fig. 1 is a kind of method for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides
Flow chart.As shown in figure 1, this method comprises the following steps：
Step S11：Since the drive system real output is more than the rated power of the drive system for the first time,
The part of the difference of real output and rated power to the drive system, which is done work, to be added up, and determines current time
Accumulated result；
Step S12：When the accumulated result at the current time is more than the first predetermined threshold value, the drive system is exported
Ability limit value is adjusted to using the rated power as the output upper limit.
Drive system in step s 11 can include：Motor, driving battery and with peak power with it is specified
Any driving equipment of power (peak power is more than rated power) the two performance parameters.Entire car controller is by detecting car key
Spoon-shaped state, shifting state and pedal state judge the intention of driver, when it is determined that driver starts the vehicle, such as：Inspection
Measure that car key is in ON states, gear is in forward gear (1 grade) state and during the state of light stepping on accelerator pedal, in order to carry
For the power (the hereinafter referred to as demand power of vehicle) required for vehicle traveling, the drivetrain in the vehicle control unit controls vehicle
System starts power output (hereinafter referred to as real output).
During driver drives vehicle, driver may can be carried out according to the drive demand of itself to vehicle
Accelerate, correspondingly, the demand power of vehicle increases with the increase of speed, and the demand power of vehicle is meeting to characterize vehicle
Driver drives power required during vehicle under different operating modes.Under normal circumstances, in order to give play to drivetrain as far as possible
The power performance of system, meets the drive demand of driver, the demand of the real output of drive system following vehicle in real time
Power, thus in accelerator, the real output of drive system gradually increases, and may exceed the specified of drive system
Power, or even the peak power close to drive system.In order to protect drive system, entire car controller is by drive system fan-out capability
Limit value default setting is the peak power of drive system, that is to say, that as long as the real output of drive system is no more than it
Peak power.
However, for drive system real output exceed drive system rated power situation, if driving
The real output of system is continued above its rated power long period, and the temperature of drive system can be caused too high, so as to right
Drive system causes to damage, and reduces the service life of drive system.Therefore, entire car controller needs to adjust drive system output energy
Power limit value, to limit the reality output driving power of drive system, and then the damage to drive system is avoided, improve drivetrain
The service life of system.
Vehicle is from starting during starting to normally travel, and speed is from zero gradually increase, and with the driving of driver
The change of demand and fluctuate, correspondingly, the demand power of vehicle also gradually increases and with speed with the gradual increase of speed
Fluctuate and fluctuate.Due to the demand power of the real output following vehicle in real time of drive system, thus drive system
Real output also gradually increases, and is fluctuated with the fluctuation of the demand power of vehicle.One kind is it might be that in vehicle
During startup, the real output of drive system is less than its rated power, during normal vehicle operation, the reality of drive system
Border power output gradually exceedes its rated power, and is fluctuated above and below rated power.
It is less than in the real output of drive system in the period of rated power, the real output of drive system
Drive system can't be caused to heat up, thus the drive system will not be caused to damage, therefore, in order to reduce accumulative number,
The value that the part of the entire car controller not difference of the real output to drive system in the period and rated power is done work
Calculated, also the part is not done work adds up, and drive system fan-out capability limit value is still with its peak within the period
Be worth power for output the upper limit, only drive system real output for the first time be more than its rated power after, just start into
Whether row adjusts the judgement of drive system fan-out capability limit value.
Therefore, need to determine at the time of the real output of drive system is more than rated power (when hereinafter referred to as initial
Carve), after the initial time, entire car controller detects the numerical value of the real output of drive system and corresponding in real time
Moment, and then the part work done of the real output of each moment drive system and the difference of rated power can be tired out
Meter, the accumulated result at current time is determined, wherein, current time can be any instant after initial time.
Specifically, it is determined that drive system real output and rated power difference part work done value, have
And it is not limited to implementation below.
When real output is more than rated power for the first time, according to the numerical value of real output, it may be determined that go out reality
The difference of power output and rated power, time integral is carried out to the difference, obtains the difference of real output and rated power
Part work done value.
In the disclosed embodiments, initial time can be designated as the momentt0, any instant after initial time can be designated as
Moment t, current time can be designated as the momentT.In moment t, the portion of the real output of drive system and the difference of rated power
Point work done can be expressed as (Pt-PIt is specified) dt, the accumulated result at current time can be expressed as
Wherein, PtRepresent the real output in moment t drive system, PIt is specifiedRepresent the rated power of drive system, dt
The unit interval is represented, such as：1 second, 30 seconds, 1 minute.The length of unit interval can be that driver drives according to itself to protection
The sensitivity of system it is demand sets itself or drive system Default Value.The length of unit interval is shorter, protects
The sensitivity for protecting drive system is bigger, that is to say, that more can protect drive system in time, avoid drive system in time as far as possible
The situation of excess temperature occurs.
In the disclosed embodiments, in order to avoid the real output of drive system, to be continued above its rated power longer
Time, and make the rise of its temperature too fast, excess temperature phenomenon is caused, needs to set the first predetermined threshold value to the drive system in advance.This
One predetermined threshold value to characterize only done work in the part of the drive system real output and the difference of rated power it is tired
When meter result is more than the first predetermined threshold value, just the drive system fan-out capability limit value is adjusted to using its rated power as in output
Limit.Otherwise the drive system fan-out capability limit value is using its peak power as the output upper limit.
First predetermined threshold value can be configured according to the performance of drive system, such as：Using drive system as driving battery
Exemplified by, it can determine that the driving battery can bear maximum temperature according to the performance of driving battery, and then can determine that and correspond to
The threshold value for the accumulated result that the part of its real output of the driving battery maximum temperature and the difference of rated power is done work.
Alternatively, it is when the accumulated result at the current time is not more than the first predetermined threshold value, the drive system is defeated
Output capacity limit value is arranged to using the peak power of the drive system as the output upper limit.
In the disclosed embodiments, entire car controller is being determined from initial time to current time, the reality of drive system
When the accumulated result that the part of border power output and the difference of rated power is done work is more than the first predetermined threshold value, illustrate drive system
Real output and the accumulated result done work of part of difference of rated power rise to the temperature of the drive system
Its maximum temperature that can bear, now, in order to protect the drive system, entire car controller is by drive system fan-out capability limit value
It is adjusted to, using the rated power of the drive system as the output upper limit, to reduce drive system real output, to reduce drivetrain
The temperature of system.Drive system real output and rated power difference the accumulated result done work of part no more than the
During one predetermined threshold value, illustrate the accumulated result done work the part of the real output of drive system and the difference of rated power also
The temperature of the drive system is not set to rise to its maximum temperature that can bear, now, in order that drive system has given play to it most
Big driveability, meets the needs of driver drives vehicle under different operating modes, drive system is exported energy by entire car controller
The control of power limit value is using the peak power of the drive system to export the upper limit.
In other words, when drive system is adapted to continue with higher than the power output of rated power, entire car controller will drive
Dynamic system fan-out capability limit value control is using the peak power of the drive system to export the upper limit, so that drive system reality output
Power meets that driver drives the demand power of vehicle under different operating modes, is not suitable for continuing with higher than specified in the drive system
During the power output of power, drive system fan-out capability limit value is adjusted to the rated power with the drive system by entire car controller
To export the upper limit, to reduce drive system real output.Avoid and excess temperature phenomenon is caused to drive system, while also to the greatest extent may be used
The power performance for having given play to drive system of energy.
In the method that the embodiment of the present disclosure is provided, the real output of the real-time accumulated drive system of entire car controller
And the part of the difference of rated power is done work, and accumulated result is compared with the first predetermined threshold value in real time, in the accumulated result
During more than the first predetermined threshold value, the drive system fan-out capability limit value is adjusted to using its rated power as the output upper limit.Due to
It is more than each moment of rated power in the real output of drive system, the real output of drive system is specified with it
The part of the difference of power is done work, and can all cause drive system to heat up, and all influences the size of the temperature of current time drive system,
So the embodiment of the present disclosure adds up to history ramp case, then determine whether that adjustment drive system is defeated according to accumulated result
Output capacity limit value, thus the method that the embodiment of the present disclosure provides can more adjust drive system fan-out capability limit value in time,
The method provided using the embodiment of the present disclosure, can make the drive system under the situation of not excess temperature, give play to its maximum driving
Performance, meets the needs of driver drives vehicle under different operating modes.
Alternatively, since the drive system real output is more than the rated power of the drive system for the first time,
The part of the difference of real output and rated power to the drive system, which is done work, to be added up, it is determined that to current time
Accumulated result, including：
Calculate the value that the part of the difference of the real output of drive system and rated power described in each moment is done work
With the result of product of the weight factor corresponding to the moment, the result of product is added up；
Weight factor corresponding to each moment, according to the when progress being separated by between the moment and the current time
Row determines.
Alternatively, the weight factor corresponding to each moment be separated by between the moment and the current time when
Long growth and reduce, the span of weight factor is more than or equal to 0 and less than or equal to 1.
Vehicle in the process of moving, the part institute of the real output at drive system each moment and the difference of rated power
The work(done, influence with the change for the duration being separated by with current time to change to caused by its temperature.Specifically, with it is current when
Be separated by quarter duration it is longer at the time of, at the moment, the part institute of the real output of drive system and the difference of rated power
Acting, it is smaller to the influence caused by the temperature at the drive system current time；With current time be separated by duration it is shorter at the time of,
At the moment, the part of the real output of drive system and the difference of rated power is done work, current to the drive system
Influence caused by the temperature at moment is bigger.Therefore, in the disclosed embodiments, to the reality of drive system described in each moment
The value that the part of power output and the difference of rated power is done work does product calculating with the weight factor corresponding to the moment.
Moment t weight factor can be designated as K (t), and K (t) is according to moment t and current timeTBetween the duration that is separated by
Determine, moment t and current timeTBetween the duration that is separated by it is longer, weight factor K (t) value is smaller, characterizes the reality at moment t
The part of border power output and the difference of rated power do work it is smaller to the influence caused by drive system current time temperature, when
Carve t and current timeTBetween the duration that is separated by it is shorter, weight factor K (t) is bigger, characterizes the real output and volume at moment t
Determine the difference of power part do work it is bigger to the influence caused by drive system current time temperature.
In moment t, value and the moment that the part of the real output of drive system and the difference of rated power is done work
The result of product of corresponding weight factor can be expressed as K (t) (Pt-PIt is specified) dt, correspondingly, the accumulative knot at current time
Fruit can be expressed as
In the disclosed embodiments, it is more than the rated power of the drive system for the first time from drive system real output
At the time of, the part for calculating the real output of drive system and the difference of rated power is done work, it is contemplated that at one
Carve it is different from the duration being separated by between current time, in the real output of the moment drive system and the difference of rated power
The influence difference that part do work to drive system current time temperature, by the real output of each moment drive system and
The value that the part of the difference of rated power is done work weight factor corresponding with the moment is multiplied, and will be each before current time
The result of product at moment is added up, and when the accumulated result is more than the first predetermined threshold value, drive system fan-out capability limit value is adjusted
Whole is using the rated power of drive system to export the upper limit.Because the real output in drive system is more than rated power
The part of the difference of each moment, the real output of drive system and its rated power is done work, and all current times are driven
The influence degree of the temperature of system is different, so entire car controller is by each moment before current time, the reality of drive system
The part of border power output and the difference of rated power do work and each moment corresponding to weight factor as Consideration,
The accumulated result at current time can be more accurately determined, also can more accurately determine drive system current time temperature, because
And drive system fan-out capability limit value can be more accurately adjusted, drive system is protected in time, avoids driving as far as possible in time
The situation of system excess temperature occurs.
Alternatively, by the drive system fan-out capability limit value be adjusted to using the rated power as output the upper limit it
Afterwards, in addition to：
After being continued for some time using the rated power as the output upper limit, if the accumulated result at current time is less than second
During predetermined threshold value, cancel limitation of the rated power for the output upper limit.
The fan-out capability limit value of drive system is adjusted to using its rated power as output the upper limit after, its reality output
Power is less than or equal to rated power, thus, the part of the difference of real output and rated power is done work as negative value or zero.
And with the momentTChange, moment t and momentTBetween the duration that is separated by it is increasingly longer, correspondingly, K (t) is less and less, thusValue it is less and less.Therefore, drive system rated power for output the upper limit period in,
The accumulated result at current time can be less and less, and the temperature of drive system can be lowered, in order to give play to the power of drive system
Performance, meets the needs of driver, entire car controller can be within period of the drive system rated power for the output upper limit, ought
The accumulated result at preceding moment is compared with the second predetermined threshold value, when the accumulated result is less than the second predetermined threshold value, cancels specified
Power is the limitation of the output upper limit.
Wherein, second predetermined threshold value is used to characterize only in the real output of drive system and the difference of rated power
When the accumulated result that part is done work is less than second predetermined threshold value, limitation (example of the rated power for the output upper limit could be cancelled
Such as, entire car controller reverts to drive system fan-out capability limit value the peak power of drive system), otherwise, drive system is defeated
Output capacity limit value is only rated power.Second predetermined threshold value can be configured according to the performance of drive system, such as：To drive
Exemplified by dynamic system is driving battery, according to the performance of driving battery, it may be determined that go out the optimum working temperature of the driving battery, and then
It can determine that what the part of the difference of its real output and rated power corresponding to the optimum working temperature done work adds up
As a result minimum threshold.Alternatively, the second predetermined threshold value can also be drive demand of the driver according to itself, and second is preset
Threshold value is set greater than the numerical value of the minimum threshold, farthest to play the driveability of the driving battery.Or second
Predetermined threshold value can also be driving battery Default Value, the second predetermined threshold value is equal to the numerical value of the threshold value, with more
Good protection driving battery.
Alternatively, by the drive system fan-out capability limit value be adjusted to using the rated power as output the upper limit after,
Also include：
Duration of the statistics using the rated power as the output upper limit；
When the duration is more than three predetermined threshold values, cancel limitation of the rated power for the output upper limit.
Drive system fan-out capability limit value for drive system rated power after, real output is not more than volume
Determine power, if driver accelerates to vehicle, the demand power of vehicle is likely to be greater than rated power, now, due to
The fan-out capability limit value of the drive system is the rated power of drive system, and causes real output can not meet vehicle
Demand power, cause vehicle speed or acceleration during traveling to reduce, influence driver and driven under different operating modes
The experience of vehicle.
In order to avoid above mentioned problem, the 3rd predetermined threshold value need to be set, the 3rd predetermined threshold value is only exporting to characterize
When ability limit value is more than three predetermined threshold values for the duration of the rated power of drive system, could cancel rated power is
The limitation of the upper limit is exported (for example, entire car controller reverts to drive system fan-out capability limit value its peak work of drive system
Rate), otherwise, drive system fan-out capability limit value is only rated power.
3rd predetermined threshold value can be configured according to the performance of drive system, such as：Using drive system as driving battery
Exemplified by, according to the performance of driving battery, it may be determined that the optimum working temperature and the driving battery for going out the driving battery can be held
The maximum temperature received, and then to be reduced to its optimal for the maximum temperature that can bear by it of the temperature for the driving battery that can determine to send as an envoy to
Duration needed for operating temperature, the duration are the 3rd predetermined threshold value.Alternatively, the 3rd predetermined threshold value can also be driver's root
According to the drive demand of itself, the 3rd predetermined threshold value is set smaller than to the numerical value of the duration, to cool in short-term to driving battery
Afterwards so that the demand power of drive system real output following vehicle again.Or the 3rd predetermined threshold value can also be drive
Dynamic battery Default Value, the 3rd predetermined threshold value is set greater than to the numerical value of the duration, battery is driven with more preferable protection.
Below by taking Fig. 2 as an example, illustrate the method for the adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.Figure
2 be a kind of schematic diagram for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.Wherein, solid line represents drivetrain
The real output of system, chain-dotted line represent the demand power of vehicle, and dotted line represents drive system fan-out capability limit value, dotted line table
Show the rated power of drive system, long short-term represents the peak power of drive system.
As shown in Fig. 2 the real output in moment t0 drive system is more than its rated power, namely t0 moment for the first time
For initial time.At the time of moment t1 is the rated power that drive system real output is not more than drive system, moment t2
At the time of being more than the rated power of drive system again for drive system real output, moment t3 is that drive system is actually defeated
Go out power again be not more than drive system rated power at the time of, moment t4 be drive system real output be more than again
At the time of the rated power of drive system.In moment t5, the part of the real output of drive system and the difference of rated power
The accumulated result done work is more than the first predetermined threshold value, thus, in moment t5, it is made into controller and limits drive system fan-out capability
Value is adjusted to using its rated power as the output upper limit, that is to say, that within a period of time after moment t5, the reality of drive system
Border power output is no more than its rated power.
First, since moment t0 after each moment can be used as current time, according to formula
Or formulaDone work the part of the difference of real output and rated power to drive system
Added up, determine the accumulated result at current time, at each moment stopped from initial time t0 to moment t5, its accumulative knot
Fruit is no more than the first predetermined threshold value, thus drive system fan-out capability limit value is default setting, i.e. the peak value of drive system
Power.Until when moment t5 is current time, its accumulated result is more than the first predetermined threshold value, thus entire car controller will drive
System fan-out capability limit value is adjusted to using rated power as the output upper limit.
Then, using each moment after moment t5 as current time, the accumulated result at current time is determined, and ought
The accumulated result at preceding moment is compared with the second predetermined threshold value, the accumulated result in moment t5 to each moment between moment t6
The second predetermined threshold value is all higher than, until moment t6 accumulated result is less than the second predetermined threshold value, thus, in moment t6 full-vehicle control
Device cancels limitation of the rated power for the output upper limit, such as：By drive system fan-out capability limit value be adjusted to using peak power as
Export the upper limit.
Alternatively, each moment after moment t5, drive system fan-out capability limit value are rated power, statistics driving
System fan-out capability limit value is the duration of rated power, and untill moment t6, drive system fan-out capability limit value is volume
The duration for determining power is default more than the 3rd more than the duration being separated by between the 3rd predetermined threshold value, namely moment t5 and moment t6
Threshold value, thus, cancel limitation of the rated power for the output upper limit in moment t6 entire car controller, such as：Drive system is exported
Ability limit value is adjusted to using peak power as the output upper limit.
Based on same inventive concept, the embodiment of the present disclosure also provides a kind of dress for adjusting drive system fan-out capability limit value
Put.Fig. 3 is refer to, Fig. 3 is a kind of block diagram of the device for adjustment drive system fan-out capability limit value that the embodiment of the present disclosure provides.
As shown in figure 3, the device 300 includes：
Accumulation module 301, it is configured as being more than the drive system for the first time from the real output of the drive system
Rated power start, the part of the difference of real output and rated power to the drive system, which is done work, tires out
Meter, determine the accumulated result at current time；
First adjusting module 302, it is configured as when the accumulated result at the current time is more than the first predetermined threshold value, will
The drive system fan-out capability limit value is adjusted to using the rated power as the output upper limit.
Alternatively, the accumulation module includes：
Accumulative submodule, be configured as calculating the real output of drive system described in each moment and rated power it
The result of product of the value that the part of difference is done work and the weight factor corresponding to the moment, adds up to the result of product；
Weight factor corresponding to each moment, according to the when progress being separated by between the moment and the current time
Row determines.
Alternatively, described device also includes：
Second adjusting module, it is configured as after being continued for some time using the rated power as the output upper limit, if currently
When the accumulated result at moment is less than the second predetermined threshold value, cancel limitation of the rated power for the output upper limit.
Alternatively, described device also includes：
Statistical module, it is configured as duration of the statistics using the rated power as the output upper limit；
3rd adjusting module, it is configured as when the duration is more than three predetermined threshold values, cancels the specified work(
Rate is the limitation of the output upper limit.
Based on same inventive concept, the embodiment of the present disclosure additionally provides a kind of vehicle, including：
Drive system, and the embodiment of the present disclosure offer adjustment drive system fan-out capability limit value device.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical scheme of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
- A kind of 1. method for adjusting drive system fan-out capability limit value, it is characterised in that including：Since the real output of the drive system is more than the rated power of the drive system for the first time, to the driving The part of the real output of system and the difference of rated power, which is done work, to be added up, and determines the accumulated result at current time；When the accumulated result at the current time is more than the first predetermined threshold value, the drive system fan-out capability limit value is adjusted For using the rated power to export the upper limit.
- 2. according to the method for claim 1, it is characterised in that be more than for the first time from the real output of the drive system The rated power of the drive system starts, the part institute of the difference of real output and rated power to the drive system Acting is added up, and determines the accumulated result at current time, including：Calculate the value part of the difference of the real output of drive system and rated power described in each moment done work with should The result of product of weight factor corresponding to moment, the result of product is added up；Weight factor corresponding to each moment, carried out according to the duration being separated by between the moment and the current time true It is fixed.
- 3. according to the method for claim 2, it is characterised in that the weight factor corresponding to each moment is with the moment The growth for the duration being separated by between the current time and reduce, the span of weight factor is more than or equal to 0 and is less than Equal to 1.
- 4. according to any described methods of claim 1-3, it is characterised in that the drive system fan-out capability limit value is adjusted After using the rated power as the output upper limit, in addition to：After being continued for some time using the rated power as the output upper limit, preset if the accumulated result at current time is less than second During threshold value, cancel limitation of the rated power for the output upper limit.
- 5. according to the method for claim 1, it is characterised in that the drive system fan-out capability limit value is adjusted to institute After rated power is stated as the output upper limit, in addition to：Duration of the statistics using the rated power as the output upper limit；When the duration is more than three predetermined threshold values, cancel limitation of the rated power for the output upper limit.
- A kind of 6. device for adjusting drive system fan-out capability limit value, it is characterised in that including：Accumulation module, it is configured as the specified work(for being more than the drive system for the first time from the real output of the drive system Rate starts, and the part of the difference of real output and rated power to the drive system, which is done work, to be added up, it is determined that working as The accumulated result at preceding moment；First adjusting module, it is configured as when the accumulated result at the current time is more than the first predetermined threshold value, by the drive Dynamic system fan-out capability limit value is adjusted to using the rated power as the output upper limit.
- 7. device according to claim 6, it is characterised in that the accumulation module includes：Accumulative submodule, is configured as calculating the difference of the real output of drive system and rated power described in each moment The result of product of the value that part is done work and the weight factor corresponding to the moment, adds up to the result of product；Weight factor corresponding to each moment, carried out according to the duration being separated by between the moment and the current time true It is fixed.
- 8. the device according to claim 6 or 7, it is characterised in that described device also includes：Second adjusting module, it is configured as after being continued for some time using the rated power as the output upper limit, if current time Accumulated result when being less than the second predetermined threshold value, cancel limitation of the rated power for the output upper limit.
- 9. device according to claim 6, it is characterised in that described device also includes：Statistical module, it is configured as duration of the statistics using the rated power as the output upper limit；3rd adjusting module, it is configured as when the duration is more than three predetermined threshold values, cancelling the rated power is Export the limitation of the upper limit.
- A kind of 10. vehicle, it is characterised in that including：Drive system, and the device of the adjustment drive system fan-out capability limit value as described in claim any one of 6-9.
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| CN201711056996.8A CN107826114B (en) | 2017-10-27 | 2017-10-27 | Adjust the method, apparatus and vehicle of drive system fan-out capability limit value |
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| CN201711056996.8A CN107826114B (en) | 2017-10-27 | 2017-10-27 | Adjust the method, apparatus and vehicle of drive system fan-out capability limit value |
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| CN110370947A (en) * | 2019-08-02 | 2019-10-25 | 福建省汽车工业集团云度新能源汽车股份有限公司 | A kind of intelligent automobile driving motor power limitation method and system |
| CN111556408A (en) * | 2020-05-06 | 2020-08-18 | 上海傅硅电子科技有限公司 | Intelligent power control system of loudspeaker and control method thereof |
| CN111651835A (en) * | 2020-05-28 | 2020-09-11 | 奇瑞汽车股份有限公司 | Method and device for determining output capacity of electric vehicle and storage medium |
| CN111688701A (en) * | 2020-05-06 | 2020-09-22 | 华人运通(江苏)技术有限公司 | Power overrun control method and device for vehicle and vehicle |
| CN112874313A (en) * | 2019-11-13 | 2021-06-01 | 纳恩博（常州）科技有限公司 | Method of controlling vehicle, and medium |
| CN113044151A (en) * | 2021-04-29 | 2021-06-29 | 北京零极创新科技有限公司 | Electric vehicle instantaneous overload control method and control device, electric vehicle and medium |
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| CN113044151A (en) * | 2021-04-29 | 2021-06-29 | 北京零极创新科技有限公司 | Electric vehicle instantaneous overload control method and control device, electric vehicle and medium |
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| CN107826114B (en) | 2019-11-22 |
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