CN107826114B - 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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- CN107826114B CN107826114B CN201711056996.8A CN201711056996A CN107826114B CN 107826114 B CN107826114 B CN 107826114B CN 201711056996 A CN201711056996 A CN 201711056996A CN 107826114 B CN107826114 B CN 107826114B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 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
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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
-
- 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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- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
This disclosure relates to a kind of method, apparatus and vehicle for adjusting drive system fan-out capability limit value.Since the real output in drive system is greater than each moment of rated power, it is 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 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, it can make the drive system under the situation of not excess temperature, play its maximum driveability, meets the needs of driver drives vehicle under different operating conditions.
Description
Technical field
This disclosure relates to technical field of vehicle, and in particular, to it is a kind of adjust drive system fan-out capability limit value method,
Device and vehicle.
Background technique
Under normal conditions, in the process of moving, according to the condition of road surface of vehicle driving, driver can select in difference vehicle
Operating condition under drive vehicle, such as: under road surface evenness or the stream of people, the lesser situation of wagon flow, driver can pass through vehicle
Gear and accelerator pedal make vehicle give it the gun；Under road surface complications or the stream of people, the biggish situation of wagon flow, 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 biggish output power, so that the speed of vehicle driving
Increase.In the moderating process of vehicle, drive system does not need too big output power.Therefore, the reality of the drive system of vehicle
Border output power can follow the size of demand power of the vehicle under different operating conditions and change, to meet driver in difference
The demand of vehicle is driven under operating condition.
Summary of the invention
Purpose of this disclosure is 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 the relevant technologies.
To achieve the goals above, according to the first aspect of the embodiments of the present disclosure, a kind of adjustment drive system output is provided
The method of ability limit value, comprising:
Since the real output of the drive system is greater than the rated power of the drive system for the first time, to described
The part of the difference of the real output and rated power of drive system, 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 greater than the first preset threshold, by the drive system fan-out capability limit value
It is adjusted to the rated power as the output upper limit.
Optionally, it is opened from the rated power that the real output of the drive system is greater than the drive system for the first time
Begin, the part of the difference of real output and rated power to the drive system, which is done work, to be added up, when determining current
The accumulated result at quarter, comprising:
Calculate the value that the part of the real output of drive system described in each moment and the difference of rated power is done work
With the result of product of 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.
Optionally, weight factor corresponding to each moment be separated by between the moment and the current time when
Long growth and reduce, the value range of weight factor is more than or equal to 0 and to be less than or equal to 1.
Optionally, by the drive system fan-out capability limit value be adjusted to the rated power for output the upper limit after,
Further include:
It is being after the output upper limit continues for some time, if the accumulated result at current time is less than second with the rated power
When preset threshold, cancelling the rated power is the limitation for exporting the upper limit.
Optionally, by the drive system fan-out capability limit value be adjusted to the rated power for output the upper limit after,
Further include:
Statistics is the duration for exporting the upper limit with the rated power；
When the duration is greater than third predetermined threshold value, cancelling the rated power is the limitation for exporting the upper limit.
According to the second aspect of an embodiment of the present disclosure, a kind of device adjusting drive system fan-out capability limit value, institute are provided
Stating device includes:
Accumulation module is configured as being greater than the volume of 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；
The first adjustment module is configured as when the accumulated result at the current time is greater than the first preset threshold, by institute
Drive system fan-out capability limit value is stated to be adjusted to the rated power as the output upper limit.
Optionally, 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 weight factor corresponding to the moment, adds up 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.
Optionally, described device further include:
Second adjustment module is configured as after being continued for some time with the rated power for the output upper limit, if currently
When the accumulated result at moment is less than the second preset threshold, cancelling the rated power is the limitation for exporting the upper limit.
Optionally, described device further include:
Statistical module, being configured as counting with the rated power is the duration for exporting the upper limit；
Third adjusts module, is configured as cancelling the specified function when the duration is greater than third predetermined threshold value
Rate is to export the limitation of the upper limit.
According to the third aspect of an embodiment of the present disclosure, a kind of vehicle is provided, comprising:
The dress of adjustment drive system fan-out capability limit value described in the second aspect of drive system and the embodiment of the present disclosure
It sets.
Using the method for the determination fan-out capability limit value that the embodiment of the present disclosure provides, the real-time accumulated driving system of entire car controller
The part of the difference of the real output and rated power of system is done work, and in real time by accumulated result compared with the first preset threshold
Compared with, the accumulated result be greater than the first preset threshold when, which is adjusted to its rated power
To export the upper limit.Since the real output in drive system is greater than each moment of rated power, the reality of drive system
The part of the difference of output power and its rated power is done work, and can all drive system be caused to heat up, all influence current time drivings
Then the size of the temperature of system determines so the embodiment of the present disclosure adds up history ramp case 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 conditions.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute 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.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In order to make drive system in the case where not excess temperature, the power performance of drive system is played as far as possible, is met
Driver drives the demand of vehicle under different operating conditions, and the embodiment of the present disclosure provides a kind of adjustment drive system fan-out capability limit value
Method, referring to FIG. 1, Fig. 1 be the embodiment of the present disclosure provide a kind of adjustment drive system fan-out capability limit value method
Flow chart.As shown in Figure 1, method includes the following steps:
Step S11: since the drive system real output is greater 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 greater than the first preset threshold, the drive system is exported
Ability limit value is adjusted to the rated power as the output upper limit.
Drive system in step s 11 may include: driving motor, driving battery and have peak power with it is specified
Any driving equipment of power (peak power is greater than rated power) the two performance parameters.Entire car controller passes through detection vehicle key
Spoon-shaped state, shifting state and pedal state judge the intention of driver, when determining that driver starts the vehicle, such as: inspection
When measuring that car key is on state, gear is in forward gear (1 grade) state and the state of light stepping on accelerator pedal, in order to mention
Driving system for power required for vehicle driving (the hereinafter referred to as demand power of vehicle), in the vehicle control unit controls vehicle
System starts output power (hereinafter referred to as real output).
During driver drives vehicle, driver can may be carried out vehicle according to the drive demand of itself
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 required power when vehicle under different operating conditions.Under normal conditions, it is to play driving as far as possible
The power performance of system, meets the drive demand of driver, and the real output of drive system follows the demand of vehicle in real time
Power, thus in accelerator, the real output of drive system is gradually increased, and may be more than 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
The default setting is the peak powers of drive system for limit value, that is to say, that as long as the real output of drive system is no more than it
Peak power.
However, the case where real output for drive system is more than the rated power of drive system, if driving
The real output of system is continued above its rated power long period, and the temperature that will lead to drive system is excessively high, thus right
Drive system damages, 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 avoids the damage to drive system, improves driving system
The service life of system.
Vehicle is from starting during starting to normally travel, and speed is gradually increased from zero, and with the driving of driver
The change of demand and fluctuate, correspondingly, the demand power of vehicle is also gradually increased with being gradually increased for speed and with speed
It fluctuates and fluctuates.Since the real output of drive system follows the demand power of vehicle in real time, thus drive system
Real output is also gradually increased, and is fluctuated with the fluctuation of the demand power of vehicle.One kind is it might be that in vehicle
During starting, the real output of drive system is less than its rated power, during normal vehicle operation, the reality of drive system
Border output power is gradually more than its rated power, and is fluctuated above and below rated power.
It is less than in the period of rated power in the real output of drive system, the real output of drive system
Drive system can't be caused to heat up, because without being damaged to the drive system, 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
It is calculated, does not also do work and add up to the part, drive system fan-out capability limit value is still with its peak during this period of time
Be worth power be output the upper limit, only after the real output of drive system is greater than its rated power for the first time, just start into
Whether row adjusts the judgement of drive system fan-out capability limit value.
Therefore, it need to determine at the time of the real output of drive system is greater than rated power (when hereinafter referred to as initial
Carve), after the initial time, the numerical value of the real output of entire car controller real-time detection drive system and corresponding
Moment, and then the part work done of the difference of the real output of each moment drive system and rated power can be carried out tired
Meter, determines the accumulated result at current time, wherein current time can be any moment after initial time.
Specifically, it is determined that the value of the part work done of the difference of the real output and rated power of drive system, has
And it is not limited to following implementation.
When real output is greater than rated power for the first time, according to the numerical value of real output, it may be determined that go out practical
The difference of output power and rated power carries out time integral to the difference, obtains the difference of real output and rated power
Part work done value.
In the embodiments of the present disclosure, initial time can be denoted as the momentt0, any moment after initial time can be denoted as
Moment t, current time can be denoted as the momentT.In moment t, the portion of the difference of the real output and rated power of drive system
Point work done can be expressed as (Pt-PIt is specified) dt, the accumulated result at current time can be expressed as
Wherein, PtIndicate the real output in moment t drive system, PIt is specifiedIndicate the rated power of drive system, dt
Indicate the unit time, such as: 1 second, 30 seconds, 1 minute.The length of unit time can be driver and be driven according to itself to protection
The demand sets itself of the sensitivity of system, it is also possible to drive system default setting.The length of unit time 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 case where excess temperature, occurs.
In the embodiments of the present disclosure, in order to avoid to be continued above its rated power longer for the real output of drive system
Time, and it is too fast to increase its temperature, causes excess temperature phenomenon, needs that the first preset threshold is arranged to the drive system in advance.This
One preset threshold is only tired out what the part of the difference of the drive system real output and rated power was done work to characterize
When counting result greater than the first preset threshold, just the drive system fan-out capability limit value is adjusted to its rated power as in output
Limit.Otherwise the drive system fan-out capability limit value is the output upper limit with its peak power.
First preset threshold can be configured according to the performance of drive system, such as: it is driving battery with drive system
For, 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 the difference of its real output and rated power of the driving battery maximum temperature is done work.
Optionally, when the accumulated result at the current time is not more than the first preset threshold, the drive system is defeated
Output capacity limit value is set as with the peak power of the drive system as the output upper limit.
In the embodiments of the present disclosure, 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 the difference of border output power and rated power is done work is greater than the first preset threshold, 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, at this point, in order to protect the drive system, entire car controller is by drive system fan-out capability limit value
It is adjusted to the rated power of the drive system, to reduce drive system real output, to reduce driving system for the output upper limit
The temperature of system.In the accumulated result that the part of the difference of the real output and rated power of drive system is done work no more than the
When one preset threshold, illustrate accumulated result that the part of the real output of drive system and the difference of rated power is done work also
The temperature of the drive system is not set to rise to the maximum temperature that it can bear, at this point, in order to make drive system play it most
Big driveability meets the needs of driver drives vehicle under different operating conditions, and drive system is exported energy by entire car controller
It is the output upper limit that the control of power limit value, which is with the peak power of the drive system,.
In other words, when drive system is suitble to continue to be higher than the power output of rated power, entire car controller will be driven
Dynamic system fan-out capability limit value control is is the output upper limit with the peak power of the drive system, so that drive system reality output
Power meets the demand power that driver drives vehicle under different operating conditions, is not suitable for continuing in the drive system specified to be higher than
When the power output of power, rated power that drive system fan-out capability limit value is adjusted to the drive system by entire car controller
To export the upper limit, to reduce drive system real output.It avoids and excess temperature phenomenon is caused to drive system, while also to the greatest extent may be used
The power performance for playing drive system of energy.
In the method provided by the embodiment of the present disclosure, 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 compares with the first preset threshold in real time, in the accumulated result
When greater than the first preset threshold, which is adjusted to its rated power as the output upper limit.Due to
It is greater 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 drive system be caused to heat up, all the size of the temperature of influence current time drive system,
So the embodiment of the present disclosure adds up 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, play its maximum driving
Performance meets the needs of driver drives vehicle under different operating conditions.
Optionally, since the drive system real output is greater 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 is determined to current time
Accumulated result, comprising:
Calculate the value that the part of the real output of drive system described in each moment and the difference of rated power is done work
With the result of product of 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.
Optionally, weight factor corresponding to each moment be separated by between the moment and the current time when
Long growth and reduce, the value range of weight factor is more than or equal to 0 and to be less than or equal to 1.
Vehicle in the process of moving, the part institute of the difference of the real output and rated power at drive system each moment
The function done influences to change with the variation for the duration being separated by with current time 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 difference of the real output and rated power of drive system
It does work, influence caused by the temperature to the drive system current time is smaller；With current time be separated by duration it is shorter at the time of,
At the moment, the part of the difference of the real output and rated power of drive system is done work, current to the drive system
Influence caused by the temperature at moment is bigger.Therefore, in the embodiments of the present disclosure, the reality of the drive system described in each moment
The value that the part of the difference of output power and rated power is done work does product calculating with weight factor corresponding to the moment.
The weight factor of moment t can be denoted as K (t), and K (t) is according to moment t and current timeTBetween the duration that is separated by
Determining, moment t and current timeTBetween the duration that is separated by it is longer, the value of weight factor K (t) is smaller, characterizes the reality of moment t
The part of the difference of border output power and rated power do work it is smaller to 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 of moment t
Determine the difference of power part do work it is bigger to influence caused by drive system current time temperature.
In moment t, value and the moment that the part of the difference of the real output and rated power of drive system 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 embodiments of the present disclosure, it is greater 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 difference of the real output and rated power of the moment drive system
Part do work the difference of the influence 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, when which is greater than the first preset threshold, by drive system fan-out capability limit value tune
It is whole for the rated power of drive system be output the upper limit.Since the real output in drive system is greater 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 is driven to all current times
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 the difference of border output power and rated power do work and each moment corresponding to weight factor as Consideration,
It can more accurately determine the accumulated result at current time, 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 case where system excess temperature, occurs.
Optionally, by the drive system fan-out capability limit value be adjusted to the rated power for output the upper limit it
Afterwards, further includes:
It is being after the output upper limit continues for some time, if the accumulated result at current time is less than second with the rated power
When preset threshold, cancelling the rated power is the limitation for exporting the upper limit.
The fan-out capability limit value of drive system is being adjusted to take its rated power as reality output after the output upper limit
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 momentTVariation, moment t and momentTBetween the duration that is separated by it is increasingly longer, correspondingly, K (t) is smaller and smaller, thusValue it is smaller and smaller.Therefore, within the period that the rated power of drive system is the output upper limit,
The accumulated result at current time can be smaller and smaller, and the temperature of drive system can be lowered, in order to play the power of drive system
Performance, meets the needs of driver, and entire car controller can be that will work as in the period for exporting the upper limit in drive system rated power
The accumulated result at preceding moment is compared with the second preset threshold, when the accumulated result is less than the second preset threshold, cancels specified
Power is the limitation for exporting the upper limit.
Wherein, the second preset threshold is used to characterize the difference only in the real output of drive system and rated power
When the accumulated result that part is done work is less than second preset threshold, could cancel rated power is the limitation (example for exporting the upper limit
Such as, drive system fan-out capability limit value is reverted to the peak power of drive system by entire car controller), otherwise, drive system is defeated
Output capacity limit value is only rated power.Second preset threshold can be configured according to the performance of drive system, such as: to drive
Dynamic system is for driving battery, according to the performance of driving battery, it may be determined that goes out the optimum working temperature of the driving battery, in turn
It can determine that the part of the difference of its real output and rated power corresponding to the optimum working temperature is done work accumulative
As a result minimum threshold.Optionally, the second preset threshold is also possible to driver according to itself drive demand, and second is preset
Threshold value is set greater than the numerical value of the minimum threshold, to play the driveability of the driving battery to the greatest extent.Alternatively, second
Preset threshold is also possible to drive battery default setting, the second preset threshold is equal to the numerical value of the threshold value, with more
Good protection drives battery.
Optionally, by the drive system fan-out capability limit value be adjusted to the rated power for output the upper limit after,
Further include:
Statistics is the duration for exporting the upper limit with the rated power；
When the duration is greater than third predetermined threshold value, cancelling the rated power is the limitation for exporting the upper limit.
After the fan-out capability limit value of drive system is the rated power of drive system, real output is not more than volume
Determine power, if driver accelerates vehicle, the demand power of vehicle is likely to be greater than rated power, at this point, due to
The fan-out capability limit value of the drive system is the rated power of drive system, and real output is caused to be unable to satisfy vehicle
Demand power causes vehicle speed or acceleration during traveling to reduce, influences driver and drive under different operating conditions
The experience of vehicle.
In order to avoid the above problem, third predetermined threshold value need to be set, which is only exporting to characterize
When ability limit value is that the duration of the rated power of drive system is greater than the third predetermined threshold value, could cancel rated power is
The limitation of the upper limit is exported (for example, drive system fan-out capability limit value is reverted to the peak work of drive system by entire car controller
Rate), otherwise, drive system fan-out capability limit value is only rated power.
Third predetermined threshold value can be configured according to the performance of drive system, such as: it is driving battery with drive system
For, 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 can determine to send as an envoy to and the temperature of battery is driven to be reduced to it most preferably by the maximum temperature that it can bear
Duration needed for operating temperature, the duration are third predetermined threshold value.Optionally, third predetermined threshold value is also possible to driver's root
According to the drive demand of itself, third predetermined threshold value is set smaller than to the numerical value of the duration, to cool down in short-term to driving battery
Afterwards, so that drive system real output follows the demand power of vehicle again.Alternatively, third predetermined threshold value is also possible to drive
Dynamic battery default setting, third predetermined threshold value is set greater than to the numerical value of the duration, battery is driven with better 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 indicates driving system
The real output of system, chain-dotted line indicate that the demand power of vehicle, dotted line indicate drive system fan-out capability limit value, dotted line table
Show that the rated power of drive system, long short-term indicate the peak power of drive system.
As shown in Fig. 2, the real output in moment t0 drive system is greater 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 greater than the rated power of drive system again for drive system real output, moment t3 is that drive system is actually defeated
At the time of power is not more than the rated power of drive system again out, moment t4 is that drive system real output is greater than again
At the time of the rated power of drive system.In moment t5, the part of the difference of the real output and rated power of drive system
The accumulated result done work is greater than the first preset threshold, thus, in moment t5, it is made into controller and limits drive system fan-out capability
Value is adjusted to 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 output power is no more than its rated power.
Firstly, each moment after since moment t0 can be used as current time, according to formula
Or formulaIt is done work the part of the difference of real output and rated power to drive system
Added up, determine the accumulated result at current time, to each moment that moment t5 stops, is adding up knot from initial time t0
Fruit is no more than the first preset threshold, 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, accumulated result is greater than the first preset threshold, thus entire car controller will drive
System fan-out capability limit value is adjusted to rated power as the output upper limit.
Then, each moment after moment t5 is determined into the accumulated result at current time as current time, and will worked as
The accumulated result at preceding moment is compared with the second preset threshold, in moment t5 to the accumulated result at each moment between moment t6
It is all larger than the second preset threshold, until the accumulated result of moment t6 is less than the second preset threshold, thus, in moment t6 full-vehicle control
Device cancel rated power be output the upper limit limitation, such as: drive system fan-out capability limit value is adjusted to be with peak power
Export the upper limit.
Optionally, 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 until moment t6, drive system fan-out capability limit value is volume
It is default greater than third that the duration for determining power is greater than the duration being separated by between third predetermined threshold value namely moment t5 and moment t6
Threshold value, thus, cancelling rated power in moment t6 entire car controller is the limitation for exporting the upper limit, such as: drive system is exported
Ability limit value is adjusted to peak power as the output upper limit.
Based on the same inventive concept, the embodiment of the present disclosure also provides a kind of dress for adjusting drive system fan-out capability limit value
It sets.Referring to FIG. 3, 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 is configured as being greater 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 do work carry out it is tired
Meter, determines the accumulated result at current time；
The first adjustment module 302 is configured as when the accumulated result at the current time is greater than the first preset threshold, will
The drive system fan-out capability limit value is adjusted to the rated power as the output upper limit.
Optionally, 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 weight factor corresponding to the moment, adds up 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.
Optionally, described device further include:
Second adjustment module is configured as after being continued for some time with the rated power for the output upper limit, if currently
When the accumulated result at moment is less than the second preset threshold, cancelling the rated power is the limitation for exporting the upper limit.
Optionally, described device further include:
Statistical module, being configured as counting with the rated power is the duration for exporting the upper limit；
Third adjusts module, is configured as cancelling the specified function when the duration is greater than third predetermined threshold value
Rate is to export the limitation of the upper limit.
Based on the same inventive concept, the embodiment of the present disclosure additionally provides a kind of vehicle, comprising:
The device of the adjustment drive system fan-out capability limit value of the offer of drive system and the embodiment of the present disclosure.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, 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 solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of method for adjusting drive system fan-out capability limit value characterized by comprising
Since the real output of the drive system is greater than the rated power of the drive system for the first time, to the driving
The part of the difference of the real output and rated power of system, 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 greater than the first preset threshold, the drive system fan-out capability limit value is adjusted
For with the rated power be output the upper limit.
2. the method according to claim 1, wherein being greater 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, comprising:
Calculate the value and institute that the part of the real output of drive system described in each moment and the difference of rated power is done work
The result of product for stating weight factor corresponding to each moment adds up the result of product；
Weight factor corresponding to each moment, according to the duration being separated by between each moment and the current time
It is determined.
3. according to the method described in claim 2, it is characterized in that, weight factor corresponding to each moment is with described every
The growth for the duration being separated by between one moment and the current time and reduce, the value range of weight factor is more than or equal to 0
And it is less than or equal to 1.
4. method according to claim 1 to 3, which is characterized in that adjust the drive system fan-out capability limit value
For with the rated power be output the upper limit after, further includes:
It is being after the output upper limit continues for some time, if the accumulated result at current time is default less than second with the rated power
When threshold value, cancelling the rated power is the limitation for exporting the upper limit.
5. the method according to claim 1, wherein being adjusted to the drive system fan-out capability limit value with institute
After rated power is stated as the output upper limit, further includes:
Statistics is the duration for exporting the upper limit with the rated power；
When the duration is greater than third predetermined threshold value, cancelling the rated power is the limitation for exporting the upper limit.
6. a kind of device for adjusting drive system fan-out capability limit value characterized by comprising
Accumulation module is configured as being greater than the specified function of 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, and determination is worked as
The accumulated result at preceding moment；
The first adjustment module is configured as when the accumulated result at the current time is greater than the first preset threshold, by the drive
Dynamic system fan-out capability limit value is adjusted to the rated power as the output upper limit.
7. device according to claim 6, which is characterized in that the accumulation module includes:
Accumulative submodule, is configured as calculating the difference of the real output of drive system described in each moment and rated power
The result of product of the value that part is done work and weight factor corresponding to each moment, carries out the result of product tired
Meter；
Weight factor corresponding to each moment, according to the duration being separated by between each moment and the current time
It is determined.
8. device according to claim 6 or 7, which is characterized in that described device further include:
Second adjustment module was configured as after being continued for some time with the rated power for the output upper limit, if current time
Accumulated result less than the second preset threshold when, cancel the rated power be export the upper limit limitation.
9. device according to claim 6, which is characterized in that described device further include:
Statistical module, being configured as counting with the rated power is the duration for exporting the upper limit；
Third adjusts module, is configured as when the duration is greater than third predetermined threshold value, cancelling the rated power is
Export the limitation of the upper limit.
10. a kind of vehicle characterized by comprising
Drive system, and the device of adjustment drive system fan-out capability limit value as claim in any one of claims 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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| CN110370947B (en) * | 2019-08-02 | 2023-03-21 | 福建省汽车工业集团云度新能源汽车股份有限公司 | Intelligent automobile driving motor power limiting method and system |
| CN112874313B (en) * | 2019-11-13 | 2023-10-20 | 纳恩博（常州）科技有限公司 | Method for controlling a vehicle, vehicle and medium |
| CN111556408B (en) * | 2020-05-06 | 2021-08-17 | 上海傅硅电子科技有限公司 | Intelligent power control system of loudspeaker and control method thereof |
| CN111688701B (en) * | 2020-05-06 | 2022-05-17 | 华人运通(江苏)技术有限公司 | Power overrun control method and device for vehicle and vehicle |
| CN111651835B (en) * | 2020-05-28 | 2023-07-28 | 奇瑞汽车股份有限公司 | Method and device for determining output capacity of electric automobile and storage medium |
| CN113044151B (en) * | 2021-04-29 | 2022-06-21 | 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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| CN102301112A (en) * | 2009-01-30 | 2011-12-28 | 株式会社小松制作所 | Engine output control device |
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| US8855876B2 (en) * | 2011-07-21 | 2014-10-07 | Honda Motor Co., Ltd. | System and method for managing an operating temperature of a working fluid in a vehicle powertrain |
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| CN1184740A (en) * | 1996-10-16 | 1998-06-17 | 大众汽车有限公司 | Method for controlling moment of torque output by automobile's driven device |
| EP1593541A2 (en) * | 1998-04-28 | 2005-11-09 | Toyota Jidosha Kabushiki Kaisha | Control system of vehicle having continuously variable transmission |
| CN102245455A (en) * | 2008-12-16 | 2011-11-16 | 罗伯特·博世有限公司 | Method for reducing the drive power of a vehicle drive |
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