CN113715798A - IGS motor compensation control method and device - Google Patents
IGS motor compensation control method and device Download PDFInfo
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- CN113715798A CN113715798A CN202110796860.0A CN202110796860A CN113715798A CN 113715798 A CN113715798 A CN 113715798A CN 202110796860 A CN202110796860 A CN 202110796860A CN 113715798 A CN113715798 A CN 113715798A
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
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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
- B60W30/20—Reducing vibrations in the driveline
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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Abstract
The invention discloses an IGS motor compensation control method and device, wherein the method comprises the following steps: when the vehicle idles, acquiring a real-time electric quantity value and a target value of a battery pack; the target value is a limit value of the charging or discharging of the battery pack; determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor according to the target value; and periodically adding additional power-assisted power or periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range. According to the invention, when the safety of the battery pack is ensured, the ISG motor is always in a loaded state, the torque of the ISG motor is prevented from repeatedly passing zero, and the NVH of the vehicle at idle speed is effectively improved.
Description
Technical Field
The invention relates to the technical field of new energy vehicles, in particular to an IGS motor compensation control method and device.
Background
When the State of charge (SOC) value of the power battery of the hybrid vehicle is at a target value, a very significant persistent abnormal sound will occur when the vehicle is idling in place. The target value is a limit value for charging or discharging a power battery of the hybrid vehicle. Since the ISG (Integrated Starter Generator) motor generates very little power when the SOC is at the target value. At the moment, the ISG motor is in zero drift torque, and the torque of the motor can have the phenomenon of repeated zero crossing. When the torque passes zero repeatedly, the ISG motor has torque quadrant switching, the motor bearing has gear commutation, the gear commutation process can cause jitter or abnormal sound, and the process can bring the problems of Noise, Vibration and Harshness (NVH). At present, the real-time control is mainly adopted for the torque when the motor torque passes through zero, and although the scheme can weaken the NVH problem caused by the torque zero passage to a certain extent, the actual application effect in the idling state of the vehicle is not ideal.
Therefore, when the NVH problem caused by the zero crossing of the torque of the ISG motor in the idle state of the vehicle is eliminated, the effect of the prior art scheme is poor.
Disclosure of Invention
In view of the above problems, the invention provides an IGS motor compensation control method and device, so that the ISG motor is always in a loaded state when the safety of the battery pack is ensured, the torque of the ISG motor is prevented from repeatedly passing zero, and the NVH of the vehicle at idle speed is effectively controlled.
In a first aspect, the present application provides the following technical solutions through an embodiment:
an IGS motor compensation control method comprises the following steps:
when the vehicle idles, acquiring a real-time electric quantity value and a target value of a battery pack; wherein the target value is a limit value of charging or discharging of the battery pack; determining the electric quantity range of the battery pack when the IGS motor is subjected to power compensation according to the target value; and periodically adding additional power assisting power or periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range.
Optionally, the determining, according to the target value, an electric quantity range of the battery pack when performing power compensation on the IGS motor includes:
and determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor as [ a-x, a + x ] according to the target value and a preset fluctuation value, wherein a is the target value, and x is the fluctuation value around the target value.
Optionally, the fluctuation value is not greater than 2%.
Optionally, before periodically adding additional boost power and periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range, the method further includes:
judging the magnitude of the real-time electric quantity value and the target value; if the real-time electric quantity value is larger than the target value, the additional assisting power is added to the IGS motor; and if the real-time electric quantity value is smaller than the target value, compensating the additional charging power for the IGS motor.
Optionally, the periodically adding additional boost power and periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range includes:
when the real-time electric quantity value reaches the upper limit of the electric quantity range, adding additional boosting power to the IGS motor to reduce the electric quantity of the battery pack; when the real-time electric quantity value reaches the lower limit of the electric quantity range, compensating additional charging power for the IGS motor so as to enable the electric quantity of the battery pack to rise; wherein the addition of the additional boost power and the compensation of the additional charging power form a periodic alternation.
Optionally, the value range of the additional assisting power is 1kw to 2 kw.
In a second aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
an IGS motor compensation control apparatus comprising:
the acquisition module is used for acquiring a real-time electric quantity value and a target value of the battery pack when the vehicle idles; wherein the target value is a limit value of charging or discharging of the battery pack; the determining module is used for determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor according to the target value; and the compensation control module is used for periodically increasing additional boosting power and periodically compensating additional charging power for the IGS motor according to the real-time electric quantity value and the electric quantity range.
Optionally, the determining module is specifically configured to determine, according to the target value and a preset fluctuation value, an electric quantity range of the battery pack when performing power compensation on the IGS motor as [ a-x, a + x ], where a is the target value and x is a fluctuation value around the target value.
In a third aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
an IGS motor compensation control apparatus comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the IGS motor compensation control apparatus to perform the steps of the method of any of the first aspects above.
In a fourth aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any of the first aspects.
The embodiment of the invention provides an IGS motor compensation control method and device, which are used for acquiring a real-time electric quantity value and a target value of a battery pack when a vehicle idles; the target value is a limit value of the charging or discharging of the battery pack; then, according to the target value, determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor; and finally, periodically increasing additional power-assisted power or periodically compensating additional charging power for the IGS motor according to the real-time electric quantity value and the electric quantity range. According to the embodiment of the invention, the electric quantity range when power compensation is carried out on the IGS is determined, and then additional power assisting power and additional charging power are periodically added to the IGS motor, so that the electric quantity value of the battery pack fluctuates around a target value and is always positioned in the electric quantity range; the safety of the battery pack is guaranteed, the ISG motor is always in a loaded state, the torque of the ISG motor is prevented from passing zero repeatedly, and the NVH of the vehicle in the idling state is effectively weakened.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts. In the drawings:
fig. 1 is a flowchart illustrating an IGS motor compensation control method according to a first embodiment of the present invention;
fig. 2 is a schematic diagram showing a periodic variation in the electric quantity value of the battery pack in the first embodiment of the present invention;
fig. 3 shows a schematic structural diagram of an IGS motor compensation control device according to a second embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
First embodiment
Referring to fig. 1, a flowchart of an IGS motor compensation control method according to a first embodiment of the present invention is shown, where the method includes:
step S10: when the vehicle idles, acquiring a real-time electric quantity value and a target value of a battery pack; wherein the target value is a limit value for charging or discharging the battery pack.
In step S10, the battery pack is a power battery for storing energy of the vehicle. When the vehicle is idling, when the real-time electric quantity value of the battery pack is detected to be larger than a target value, the IGS motor stops charging and converts the charging into power-assisted action; when the real-time electric quantity value of the battery pack is detected to be smaller than the target value, the IGS motor stops the boosting action and changes the boosting action into the charging action. Therefore, when the vehicle is idling, the torque of the IGS motor repeatedly passes through the zero point when the electric quantity value of the battery pack is the target value. Repeated zero-crossing of torque will cause the IGS motor and its associated drive gear to commutate, thereby causing severe NVH problems.
In the implementation, the IGS motor is always in a charging or boosting state during idling through the control logic of the compensation power, so that the torque of the IGS motor deviates from a zero point, and abnormal sound is avoided. Further, in order to avoid overcharge or overdischarge of the battery pack, the electric quantity range of the battery pack during compensation needs to be determined, and refer to the subsequent steps.
Step S20: and determining the electric quantity range of the battery pack when the IGS motor is subjected to power compensation according to the target value.
In step S20, the magnitude of the target value is correlated with the factory parameter of the battery pack. Battery packs of different manufacturers and different specifications may have different target values. Therefore, the electric quantity range at the time of compensation should fluctuate around the target value. Specifically, according to a target value and a preset fluctuation value, determining the electric quantity range of a battery pack when power compensation is performed on the IGS motor as [ a-x, a + x ]; that is, the electric quantity range may be [ a-x, a + x ], where a is a target value and x is a fluctuation value around the target value. In the implementation, the fluctuation value is not more than 2%, the torque reversing times of the IGS motor can be reduced, and the influence on the service life of the battery caused by over-charge and over-discharge of the battery pack is avoided. Preferably, the fluctuation value can be 1.4%, 1.5%, 1.6% and the like, so that adverse effects caused by abnormal fluctuation can be avoided, and the damage to the battery pack is reduced as much as possible while a good NVH (noise, vibration and harshness) inhibition effect is ensured.
For example, if the SOC target value of a certain battery pack is 65%, the electric quantity range at the time of compensation can be determined to be 65% ± 2%. Preferably, it can be determined to be 65% + -1.5%.
Step S30: and periodically adding additional power assisting power or periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range.
In step S30, when initially compensating the IGS motor, the additional boost power may be optionally added, or the additional charging power may be optionally compensated, without limitation. However, in the present embodiment, the compensation of the idle initial time may be performed as follows:
and judging the real-time electric quantity value and the target value to obtain a judgment result. If the real-time electric quantity value is larger than the target value, the real-time electric quantity value is closer to the upper limit of the electric quantity range; at this time, additional boost power may be added to the IGS motor. If the real-time electric quantity value is smaller than the target value, the real-time electric quantity value is closer to the lower limit of the electric quantity range; at this time, the IGS motor may be compensated for additional charging power. At the initial moment of idling, the torque reversing time of the first IGS motor can be prolonged by compensating in the mode, the problem that a driver and passengers have abnormal sound during torque reversing and mistakenly think that the driver and passengers have a brake and stop is solved, and the use experience of the driver and passengers is improved.
Further, step S30 may specifically include the following two cases:
1. when the real-time electric quantity value reaches the upper limit of the electric quantity range, additional boosting power is added to the IGS motor, so that the electric quantity of the battery pack is reduced.
When the real-time electric quantity value exceeds the upper limit of the electric quantity range, the battery pack is overcharged, and therefore additional boosting power needs to be added. The extra boosting power is controlled to be 1 kw-2 kw. If the extra boosting power is more than 2kw, a vehicle control system can mistakenly recognize the extra boosting power, and the oil cut of the engine is triggered or easily triggered; if the extra boosting power is less than 1kw, the torque value is still near the zero point due to the limitation of torque precision, and the situation that the torque repeatedly crosses zero can also occur; therefore, the extra boosting power is preferably set between 1kw and 2 kw. Furthermore, 1.4kw-1.6kw can be selected, for example, the value is 1.5kw, so that the torque value can be ensured to deviate from the zero point, and the phenomenon that the battery pack is discharged too fast due to too high power is avoided.
2. When the real-time electric quantity value reaches the lower limit of the electric quantity range, additional charging power is compensated for the IGS motor, so that the electric quantity of the battery pack is increased.
When the real-time electric quantity value is smaller than the lower limit of the electric quantity range, the battery pack is over-placed, and the normal driving range of the vehicle is possibly influenced. Thus requiring compensation for the additional charging power.
It should be noted that adding additional boost power and compensating for additional charging power will form a periodic alternation, as shown in fig. 2. That is, only once alternation is carried out in a period T, the torque direction changes once, the number of times of zero crossing of the torque is effectively reduced, and the NVH of the vehicle in idling is improved.
By adding the extra boosting power and compensating the extra charging power, a periodic alternation is formed. Therefore, when the IGS motor is charged, the battery is wrapped and charged, and the electric quantity of the battery is improved; and the battery pack is in a discharge state during power assisting, and the electric quantity can be reduced. Therefore, the battery can be prevented from being overcharged or overdischarged, the ISG motor can be always in a loaded state while the service life of the battery is ensured, the torque of the ISG motor is prevented from repeatedly crossing the zero point, and the problem of abnormal sound of the idling of the vehicle is solved.
In summary, the present embodiment provides an IGS motor compensation control method, which obtains a real-time electric quantity value and a target value of a battery pack when a vehicle is idling; the target value is a limit value of the charging or discharging of the battery pack; then, according to the target value, determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor; and finally, periodically increasing additional power-assisted power or periodically compensating additional charging power for the IGS motor according to the real-time electric quantity value and the electric quantity range. In the embodiment, the electric quantity range when power compensation is performed on the IGS is determined, and then additional power assisting power is periodically added to the IGS motor and additional charging power is periodically compensated, so that the electric quantity value of the battery pack fluctuates around a target value and is always located in the electric quantity range; the safety of the battery pack is guaranteed, the ISG motor is always in a loaded state, the torque of the ISG motor is prevented from passing zero repeatedly, and the NVH of the vehicle in the idling state is effectively improved.
Second embodiment
Referring to fig. 3, based on the same inventive concept, a second embodiment of the present invention provides an IGS motor compensation control apparatus 300, where the IGS motor compensation control apparatus 300 includes:
the obtaining module 301 is configured to obtain a real-time electric quantity value and a target value of a battery pack when a vehicle is idling; wherein the target value is a limit value of charging or discharging of the battery pack; a determining module 302, configured to determine, according to the target value, an electric quantity range of the battery pack when performing power compensation on the IGS motor; and the compensation control module 303 is configured to periodically add additional boost power or periodically compensate additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range.
As an optional implementation manner, the determining module 302 is specifically configured to:
and determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor as [ a-x, a + x ] according to the target value and a preset fluctuation value, wherein a is the target value, and x is the fluctuation value around the target value.
As an alternative embodiment, the fluctuation value is not greater than 2%.
As an optional implementation, the method further includes, before periodically adding additional boost power and periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range:
judging the magnitude of the real-time electric quantity value and the target value; if the real-time electric quantity value is larger than the target value, the additional assisting power is added to the IGS motor; and if the real-time electric quantity value is smaller than the target value, compensating the additional charging power for the IGS motor.
As an optional implementation manner, the compensation control module 303 is specifically configured to:
when the real-time electric quantity value reaches the upper limit of the electric quantity range, adding additional boosting power to the IGS motor to reduce the electric quantity of the battery pack; when the real-time electric quantity value reaches the lower limit of the electric quantity range, compensating additional charging power for the IGS motor so as to enable the electric quantity of the battery pack to rise; wherein the addition of the additional boost power and the compensation of the additional charging power form a periodic alternation.
As an optional implementation manner, the value range of the additional boosting power is 1kw to 2 kw.
It should be noted that, the specific implementation and technical effects of the IGS motor compensation control device 300 provided in the embodiment of the present invention are the same as those of the foregoing method embodiment, and for the sake of brief description, reference may be made to corresponding contents in the foregoing method embodiment for parts of the embodiment of the device that are not mentioned.
Third embodiment
Based on the same inventive concept, a third embodiment of the present application further provides an IGS motor compensation control apparatus, comprising a processor and a memory, the memory being coupled to the processor, the memory storing instructions that, when executed by the processor, cause the IGS motor compensation control apparatus to perform the steps of the method of any one of the first embodiments described above.
It should be noted that, in the IGS motor compensation control apparatus provided in the embodiment of the present invention, when the instructions are executed by the processor, the specific implementation of each step and the resulting technical effect are the same as those of the foregoing method embodiment, and for the sake of brief description, for the sake of brevity, reference may be made to the corresponding contents in the foregoing method embodiment for the non-mentioned points of the present embodiment.
Fourth embodiment
Based on the same inventive concept, the fourth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to any one of the first aspect.
It should be noted that, in the computer-readable storage medium provided by the embodiment of the present invention, when the program is executed by the processor, the specific implementation and the resulting technical effect of each step are the same as those of the foregoing method embodiment, and for the sake of brief description, for the sake of brevity, no matter which is mentioned in this embodiment, reference may be made to the corresponding contents in the foregoing method embodiment.
The term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An IGS motor compensation control method is characterized by comprising the following steps:
when the vehicle idles, acquiring a real-time electric quantity value and a target value of a battery pack; wherein the target value is a limit value of charging or discharging of the battery pack;
determining the electric quantity range of the battery pack when the IGS motor is subjected to power compensation according to the target value;
and periodically adding additional power assisting power or periodically compensating additional charging power to the IGS motor according to the real-time electric quantity value and the electric quantity range.
2. The method of claim 1, wherein determining the range of charge of the battery pack when power compensating the IGS motor based on the target value comprises:
and determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor as [ a-x, a + x ] according to the target value and a preset fluctuation value, wherein a is the target value, and x is the fluctuation value around the target value.
3. The method of claim 2, wherein the fluctuation value is no greater than 2%.
4. The method of claim 1, wherein prior to periodically adding additional boost power and periodically compensating for additional charging power to the IGS motor based on the real-time charge value and the charge range, further comprising:
judging the magnitude of the real-time electric quantity value and the target value;
if the real-time electric quantity value is larger than the target value, the additional assisting power is added to the IGS motor;
and if the real-time electric quantity value is smaller than the target value, compensating the additional charging power for the IGS motor.
5. The method of claim 1, wherein said periodically adding additional boost power and periodically compensating additional charging power to said IGS motor based on said real-time charge value and said charge range comprises:
when the real-time electric quantity value reaches the upper limit of the electric quantity range, adding additional boosting power to the IGS motor to reduce the electric quantity of the battery pack;
when the real-time electric quantity value reaches the lower limit of the electric quantity range, compensating additional charging power for the IGS motor so as to enable the electric quantity of the battery pack to rise; wherein the addition of the additional boost power and the compensation of the additional charging power form a periodic alternation.
6. A method according to any one of claims 1-5, wherein the additional boost power is in the range of 1-2 kw.
7. An IGS motor compensation control device, comprising:
the acquisition module is used for acquiring a real-time electric quantity value and a target value of the battery pack when the vehicle idles; wherein the target value is a limit value of charging or discharging of the battery pack;
the determining module is used for determining the electric quantity range of the battery pack when the power compensation is carried out on the IGS motor according to the target value;
and the compensation control module is used for periodically increasing additional boosting power or periodically compensating additional charging power for the IGS motor according to the real-time electric quantity value and the electric quantity range.
8. The apparatus according to claim 7, wherein the determining module is specifically configured to determine the electric quantity range of the battery pack when performing power compensation on the IGS motor as [ a-x, a + x ] according to the target value and a preset fluctuation value, where a is the target value and x is a fluctuation value around the target value.
9. An IGS motor compensation control apparatus, comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the IGS motor compensation control apparatus to perform the steps of the method of any of claims 1-6.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796860.0A CN113715798B (en) | 2021-07-14 | 2021-07-14 | ISG motor compensation control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796860.0A CN113715798B (en) | 2021-07-14 | 2021-07-14 | ISG motor compensation control method and device |
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| CN113715798B (en) | 2023-09-26 |
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