CN108790876B - Method and device for adjusting feedback power of electric automobile and automobile - Google Patents
Method and device for adjusting feedback power of electric automobile and automobile Download PDFInfo
- Publication number
- CN108790876B CN108790876B CN201810576019.9A CN201810576019A CN108790876B CN 108790876 B CN108790876 B CN 108790876B CN 201810576019 A CN201810576019 A CN 201810576019A CN 108790876 B CN108790876 B CN 108790876B
- Authority
- CN
- China
- Prior art keywords
- feedback power
- coefficient
- adjusting
- calculating
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 16
- 230000006872 improvement Effects 0.000 abstract description 5
- 230000001186 cumulative effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a method and a device for adjusting feedback power of an electric automobile and the automobile, wherein the method for adjusting the feedback power of the electric automobile comprises the following steps: detecting the highest voltage of the single battery pack in real time; starting timing and accumulating the discharge capacity of the whole vehicle when the highest voltage of the single body is detected to be greater than the charging limit voltage; and adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated discharge amount of the whole automobile. According to the embodiment of the invention, the highest voltage of the single body in the battery system is detected, the available feedback power of the whole vehicle is dynamically reduced and improved according to the state of the battery at each moment, the reduction and improvement process is linear, step jump does not occur, a certain feedback power is reserved for a user on the premise of ensuring the driving smoothness, and the problem of overcharge of the battery is also solved.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a method and a device for adjusting feedback power of an electric automobile and an automobile.
Background
In a new energy pure electric vehicle, when the vehicle is in a braking working condition, the power motor can work in a power generation state, namely, the kinetic energy of the whole vehicle is recovered to the power battery, so that the energy utilization efficiency is improved, and the driving range is increased. However, at the stage of a full-Charge State or a high-Charge State (SOC) of the power battery, the power battery needs to be protected, and the motor cannot recover excessive energy to the power battery under a braking condition, otherwise, the power battery is overcharged, the service life of the battery is reduced, and potential safety hazards are generated.
At present, the most widely applied high SOC section protection method is to feed back 0kw of power in the high SOC section, namely to prohibit energy recovery. The feedback power is gradually increased along with the running of the vehicle and the consumption of the electric quantity.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method and a device for adjusting feedback power of an electric vehicle and the vehicle, and solves the problem that the power battery is overcharged due to the fact that a motor recovers excessive energy under the braking working condition in the full-charge state or high SOC stage of the power battery.
According to an aspect of the present invention, a method for adjusting feedback power of an electric vehicle is provided, including:
detecting the highest voltage of the single battery pack in real time;
starting timing and accumulating the discharge capacity of the whole vehicle when the highest voltage of the single body is detected to be greater than the charging limit voltage;
and adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated discharge amount of the whole automobile.
Optionally, the step of adjusting the current available feedback power of the electric vehicle according to the timed time and the accumulated vehicle discharge amount includes:
converting the timed time into a first scale factor;
converting the accumulated whole vehicle discharge capacity into a second proportionality coefficient;
calculating an adjusting coefficient of feedback power according to the first proportional coefficient and the second proportional coefficient;
and calculating the current available feedback power of the electric automobile according to the adjustment coefficient of the feedback power.
Optionally, the step of converting the timed time into a first scale factor includes:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
Optionally, the step of converting the accumulated vehicle discharge capacity into a second proportionality coefficient includes:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportion systemCounting;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
Optionally, the step of calculating the current available feedback power of the electric vehicle according to the adjustment coefficient of the feedback power includes:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
Optionally, when the current available feedback power of the electric automobile is adjusted, the reduction and the increase of the available feedback power are linearized, and no step jump occurs.
According to another aspect of the present invention, there is provided an apparatus for adjusting feedback power of an electric vehicle, including:
the detection module is used for detecting the highest voltage of the single battery pack in real time;
the timing module is used for starting timing and accumulating the discharge capacity of the whole vehicle when detecting that the highest voltage of the single body is greater than the charging limit voltage;
and the control module is used for adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated whole automobile discharge amount.
Optionally, the control module comprises:
a first conversion unit for converting the timed time into a first scale factor;
the second conversion unit is used for converting the accumulated whole vehicle discharge capacity into a second proportionality coefficient;
the first calculating unit is used for calculating an adjusting coefficient of feedback power according to the first proportional coefficient and the second proportional coefficient;
and the second calculating unit is used for calculating the current available feedback power of the electric automobile according to the adjustment coefficient of the feedback power.
Optionally, the first conversion unit is specifically configured to:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
Optionally, the second conversion unit is specifically configured to:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportionality coefficient;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
Optionally, the second computing unit is specifically configured to:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
Optionally, when the current available feedback power of the electric automobile is adjusted, the reduction and the increase of the available feedback power are linearized, and no step jump occurs.
According to another aspect of the invention, an automobile is provided, which includes the above adjusting device for feedback power of electric automobile.
The embodiment of the invention has the beneficial effects that:
according to the method for adjusting the feedback power of the electric automobile, the highest voltage of the single body in the battery system is detected, the available feedback power of the whole automobile is dynamically reduced and improved according to the state of the battery at each moment, the reduction and improvement process is linear, step jump does not occur, certain feedback power is reserved for a user on the premise of ensuring driving smoothness, and the problem of overcharge of the battery is solved.
Drawings
Fig. 1 is a flowchart illustrating a method for adjusting feedback power of an electric vehicle according to an embodiment of the invention;
FIG. 2 is a schematic flow chart illustrating a specific process of step 13 in FIG. 1 according to an embodiment of the present invention;
fig. 3 is a block diagram illustrating a structure of an apparatus for adjusting feedback power of an electric vehicle according to an embodiment of the present invention;
fig. 4 is a block diagram showing a specific structure of the control module in fig. 3 according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can 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 invention to those skilled in the art.
As shown in fig. 1, an embodiment of the invention provides a method for adjusting feedback power of an electric vehicle, including:
in the embodiment, the power battery monomer has the highest charging limiting voltage and an overvoltage protection voltage, and the overvoltage protection voltage is not allowed to be exceeded in the running process of the whole vehicle, namely the charging limiting voltage is smaller than the overvoltage protection voltage. The scheme takes the charging limiting voltage as a threshold value, and can detect the highest voltage of the single battery pack at any time through the battery management system. In the feedback process of the vehicle, when the highest voltage of the single battery pack is detected to exceed the charging limit voltage, the timer is controlled to start to count time in an accumulated mode, and the battery management system starts to accumulate the discharge capacity of the whole vehicle at the same time.
in this embodiment, when the battery management system detects that the highest voltage of the battery pack exceeds the charging limit voltage, the battery management system controls the timer to start cumulative timing, and the battery management system simultaneously starts cumulative timing of the discharge capacity of the entire vehicle. In the vehicle feedback process, when the highest single voltage of the battery pack is detected to exceed the charging limit voltage, the power battery is considered to be in a full-charge state or a high SOC stage, at the moment, the power battery needs to be protected, and the phenomenon that the motor recovers excessive energy to the power battery under the braking working condition is avoided, so that the overcharge of the power battery is caused.
And step 13, adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated discharge amount of the whole automobile.
In the embodiment, the charging limit voltage is used as a threshold value, the battery management system detects the highest single voltage of the battery pack at any time, and in the feedback process of the vehicle, once the highest single voltage of the battery pack exceeds the charging limit voltage, the timer is controlled to start to count time in an accumulated manner, and the battery management system accumulates the discharge capacity of the whole vehicle. And then converting the timed time into a first proportional coefficient through a preset algorithm, converting the accumulated discharge amount into a second proportional coefficient, and multiplying the adjustment coefficient obtained by using the first proportional coefficient and the second proportional coefficient by the maximum feedback power at the current moment, wherein the maximum feedback power at the current moment is a constant measured by an experiment, and the maximum feedback power at the current moment is changed according to the change of parameters such as temperature, SOC and the like. It is worth pointing out that when the current available feedback power of the electric automobile is adjusted, the reduction and the increase of the available feedback power are linearized, and no step jump occurs.
The scheme adopts the highest single voltage of the battery pack and the accumulated discharge amount of the whole vehicle as reference quantities, dynamically reduces and promotes the available feedback power of the whole vehicle through a certain algorithm, is linear in the reduction and promotion processes, does not generate step jump, not only keeps certain feedback power for users, but also protects the battery from overcharging on the premise of ensuring the driving smoothness.
As shown in fig. 2, step 13 includes:
specifically, the step 131 specifically includes:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
In this example, T1For accumulating the time counted, T2For time constant calibrated according to battery characteristics, by T1/T2Obtaining a first proportionality coefficient K1Wherein, K is1The range of the limitation is 0 to 1.
specifically, the step 132 specifically includes:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportionality coefficient;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
In this example, Q1For the accumulated discharge capacity of the whole vehicle, Q2For time constant calibrated according to battery characteristics, by Q1/Q2Obtaining a second proportionality coefficient K2Wherein, K is2The range of the limitation is 0 to 1.
Step 133, calculating an adjustment coefficient of feedback power according to the first scaling factor and the second scaling factor;
in this example, a first scaling factor K is used1With a second proportionality coefficient K2Obtaining a total coefficient, namely an adjusting coefficient of the feedback power, wherein the limiting range of the adjusting coefficient of the feedback power is 0-1.
And step 134, calculating the current available feedback power of the electric automobile according to the adjustment coefficient of the feedback power.
Specifically, step 134 specifically includes:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
In this embodiment, the linear adjustment of the available feedback power of the whole vehicle is realized by multiplying the adjustment coefficient of the calculated feedback power by the current available feedback power of the electric vehicle. Wherein, PmaxIs determined for the experiment, and PmaxAccording to the variation of temperature, SOC and other parameters, in the scheme, PmaxCan be considered as a constant.
According to the scheme, at the full-charge state or high SOC stage of the power battery, the single highest voltage and the accumulated discharge capacity of the battery pack are used as reference quantities, the algorithm of converting the single highest voltage and the accumulated discharge capacity of the whole vehicle into proportionality coefficients is adopted respectively, the available feedback power of the whole vehicle is dynamically reduced and improved, the reduction and improvement process is linear, step jump is not generated, certain feedback power (electric braking of the whole vehicle) is reserved for a user on the premise of ensuring the driving smoothness, and the problem of overcharge of the battery is solved.
As shown in fig. 3, an embodiment of the present invention provides an apparatus for adjusting feedback power of an electric vehicle, including:
the detection module 31 is used for detecting the highest voltage of the single battery pack in real time;
in the embodiment, the power battery monomer has the highest charging limiting voltage and an overvoltage protection voltage, and the overvoltage protection voltage is not allowed to be exceeded in the running process of the whole vehicle, namely the charging limiting voltage is smaller than the overvoltage protection voltage. The scheme takes the charging limiting voltage as a threshold value, and can detect the highest voltage of the single battery pack at any time through the battery management system. In the feedback process of the vehicle, when the highest voltage of the single battery pack is detected to exceed the charging limit voltage, the timer is controlled to start to count time in an accumulated mode, and the battery management system starts to accumulate the discharge capacity of the whole vehicle at the same time.
The timing module 32 is used for starting timing and accumulating the discharge capacity of the whole vehicle when detecting that the highest voltage of the single body is greater than the charging limit voltage;
in this embodiment, when the battery management system detects that the highest voltage of the battery pack exceeds the charging limit voltage, the battery management system controls the timer to start cumulative timing, and the battery management system simultaneously starts cumulative timing of the discharge capacity of the entire vehicle. In the vehicle feedback process, when the highest single voltage of the battery pack is detected to exceed the charging limit voltage, the power battery is considered to be in a full-charge state or a high SOC stage, at the moment, the power battery needs to be protected, and the phenomenon that the motor recovers excessive energy to the power battery under the braking working condition is avoided, so that the overcharge of the power battery is caused.
And the control module 33 is configured to adjust the current available feedback power of the electric vehicle according to the timed time and the accumulated vehicle discharge amount.
In the embodiment, the charging limit voltage is used as a threshold value, the battery management system detects the highest single voltage of the battery pack at any time, and in the feedback process of the vehicle, once the highest single voltage of the battery pack exceeds the charging limit voltage, the timer is controlled to start to count time in an accumulated manner, and the battery management system accumulates the discharge capacity of the whole vehicle. And then converting the timed time into a first proportional coefficient through a preset algorithm, converting the accumulated discharge amount into a second proportional coefficient, and multiplying the adjustment coefficient obtained by using the first proportional coefficient and the second proportional coefficient by the maximum feedback power at the current moment, wherein the maximum feedback power at the current moment is a constant measured by an experiment, and the maximum feedback power at the current moment is changed according to the change of parameters such as temperature, SOC and the like. It is worth pointing out that when the current available feedback power of the electric automobile is adjusted, the reduction and the increase of the available feedback power are linearized, and no step jump occurs.
The scheme adopts the highest single voltage of the battery pack and the accumulated discharge amount of the whole vehicle as reference quantities, dynamically reduces and promotes the available feedback power of the whole vehicle through a certain algorithm, is linear in the reduction and promotion processes, does not generate step jump, not only keeps certain feedback power for users, but also protects the battery from overcharging on the premise of ensuring the driving smoothness.
As shown in fig. 4, the control module 33 includes:
a first conversion unit 331 configured to convert the timed time into a first scale factor;
specifically, the first conversion unit 331 is specifically configured to:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
In this example, T1For accumulating the time counted, T2For time constant calibrated according to battery characteristics, by T1/T2Obtaining a first proportionality coefficient K1Wherein, K is1The range of the limitation is 0 to 1.
The second conversion unit 332 is configured to convert the accumulated finished automobile discharge capacity into a second proportionality coefficient;
specifically, the second conversion unit 332 is specifically configured to:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportionality coefficient;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
In this example, Q1For the accumulated discharge capacity of the whole vehicle, Q2For time constant calibrated according to battery characteristics, by Q1/Q2Obtaining a second proportionality coefficient K2Wherein, K is2The range of the limitation is 0 to 1.
A first calculating unit 333, configured to calculate an adjustment coefficient of feedback power according to the first scaling factor and the second scaling factor;
in this example, a first scaling factor K is used1With a second proportionality coefficient K2Obtaining a total coefficient, namely an adjusting coefficient of the feedback power, wherein the limiting range of the adjusting coefficient of the feedback power is 0-1.
The second calculating unit 334 is configured to calculate the current available feedback power of the electric vehicle according to the adjustment coefficient of the feedback power.
Specifically, the second calculating unit 334 is specifically configured to:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
In this embodiment, the linear adjustment of the available feedback power of the whole vehicle is realized by multiplying the adjustment coefficient of the calculated feedback power by the current available feedback power of the electric vehicle. Wherein, PmaxIs determined for the experiment, and PmaxAccording to the variation of temperature, SOC and other parameters, in the scheme, PmaxCan be considered as a constant.
According to the scheme, at the full-charge state or high SOC stage of the power battery, the single highest voltage and the accumulated discharge capacity of the battery pack are used as reference quantities, the algorithm of converting the single highest voltage and the accumulated discharge capacity of the whole vehicle into proportionality coefficients is adopted respectively, the available feedback power of the whole vehicle is dynamically reduced and improved, the reduction and improvement process is linear, step jump is not generated, certain feedback power (electric braking of the whole vehicle) is reserved for a user on the premise of ensuring the driving smoothness, and the problem of overcharge of the battery is solved.
It should be noted that the apparatus is an apparatus corresponding to the individual recommendation method, and all implementation manners in the method embodiments are applicable to the embodiment of the apparatus, and the same technical effect can be achieved.
The embodiment of the invention also provides an automobile comprising the device for adjusting the feedback power of the electric automobile.
According to the embodiment of the invention, the highest voltage of the single body in the battery system is detected, the available feedback power of the whole vehicle is dynamically reduced and improved according to the state of the battery at each moment, the reduction and improvement process is linear, step jump does not occur, certain feedback power is reserved for a user on the premise of ensuring the driving smoothness, and the problem of overcharge of the battery is also solved.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (13)
1. A method for adjusting feedback power of an electric vehicle is characterized by comprising the following steps:
detecting the highest voltage of the single battery pack in real time;
starting timing and accumulating the discharge capacity of the whole vehicle when the highest voltage of the single body is detected to be greater than the charging limit voltage;
and adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated discharge amount of the whole automobile.
2. The method for adjusting feedback power of an electric vehicle as claimed in claim 1, wherein the step of adjusting the current available feedback power of the electric vehicle according to the timed time and the accumulated vehicle discharge amount comprises:
converting the timed time into a first scale factor;
converting the accumulated whole vehicle discharge capacity into a second proportionality coefficient;
calculating an adjusting coefficient of feedback power according to the first proportional coefficient and the second proportional coefficient;
and calculating the current available feedback power of the electric automobile according to the adjustment coefficient of the feedback power.
3. The method of claim 2, wherein the step of converting the timing time into a first scale factor comprises:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
4. The method for adjusting feedback power of an electric vehicle as claimed in claim 2, wherein the step of converting the accumulated vehicle discharge capacity into a second proportionality coefficient comprises:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportionality coefficient;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
5. The method for adjusting feedback power of an electric vehicle as claimed in claim 2, wherein the step of calculating the current available feedback power of the electric vehicle according to the adjustment coefficient of the feedback power comprises:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
6. The method of claim 1, wherein the reduction and increase of the available feedback power are linearized without step jump when the current available feedback power of the electric vehicle is adjusted.
7. The utility model provides an adjusting device of electric automobile repayment power which characterized in that includes:
the detection module is used for detecting the highest voltage of the single battery pack in real time;
the timing module is used for starting timing and accumulating the discharge capacity of the whole vehicle when detecting that the highest voltage of the single body is greater than the charging limit voltage;
and the control module is used for adjusting the current available feedback power of the electric automobile according to the timed time and the accumulated whole automobile discharge amount.
8. The device for adjusting feedback power of an electric vehicle as claimed in claim 7, wherein the control module comprises:
a first conversion unit for converting the timed time into a first scale factor;
the second conversion unit is used for converting the accumulated whole vehicle discharge capacity into a second proportionality coefficient;
the first calculating unit is used for calculating an adjusting coefficient of feedback power according to the first proportional coefficient and the second proportional coefficient;
and the second calculating unit is used for calculating the current available feedback power of the electric automobile according to the adjustment coefficient of the feedback power.
9. The apparatus of claim 8, wherein the first converting unit is specifically configured to:
by the formula: k1＝T1/T2Calculating to obtain the first proportional coefficient;
wherein, K1Is a first scale factor, T1For said timed time, T2Is a time constant.
10. The apparatus of claim 8, wherein the second converting unit is specifically configured to:
by the formula: k2＝Q1/Q2Calculating to obtain the second proportionality coefficient;
wherein, K2Is the second proportionality coefficient, Q1Is the accumulated total vehicle discharge quantity, Q2Is a capacity constant.
11. The apparatus of claim 8, wherein the second calculating unit is specifically configured to:
by the formula, P is K × PmaxCalculating to obtain the current available feedback power of the electric automobile;
wherein, P is the current available feedback power of the electric vehicle, and K is the adjustment coefficient of the feedback power, where K is K ═ K1+K2，K1Is a first scale factor, K2Is the second proportionality coefficient, PmaxThe current maximum feedback power of the electric automobile.
12. The apparatus of claim 7, wherein the reduction and increase of the available feedback power are linearized and no step jump occurs when the current available feedback power of the electric vehicle is adjusted.
13. An automobile, characterized by comprising the device for adjusting the feedback power of the electric automobile according to any one of claims 7 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576019.9A CN108790876B (en) | 2018-06-06 | 2018-06-06 | Method and device for adjusting feedback power of electric automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576019.9A CN108790876B (en) | 2018-06-06 | 2018-06-06 | Method and device for adjusting feedback power of electric automobile and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108790876A CN108790876A (en) | 2018-11-13 |
| CN108790876B true CN108790876B (en) | 2020-08-04 |
Family
ID=64087300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810576019.9A Active CN108790876B (en) | 2018-06-06 | 2018-06-06 | Method and device for adjusting feedback power of electric automobile and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108790876B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112440822B (en) * | 2019-08-27 | 2022-03-29 | 北京新能源汽车股份有限公司 | Method and device for determining feedback power of electric automobile and electric automobile |
| CN111370786B (en) * | 2020-01-06 | 2021-09-03 | 广州小鹏汽车科技有限公司 | Method and device for adjusting allowable power of power battery, vehicle and storage medium |
| CN113401003B (en) * | 2020-03-16 | 2023-12-05 | 北京新能源汽车股份有限公司 | Electric automobile battery energy feedback power adjusting method and device and electric automobile |
| CN112737000B (en) * | 2020-12-02 | 2022-11-04 | 浙江吉利控股集团有限公司 | Control method and device for overvoltage fault of battery system |
| CN114030357A (en) * | 2021-07-14 | 2022-02-11 | 山西赛坦科技有限公司 | Control device and control method for preventing BMS (battery management system) recharging overcurrent |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684383A (en) * | 1995-09-19 | 1997-11-04 | Nissan Motor Co., Ltd. | Regenerative charge control system estimating allowable regenerative power |
| JP2002223501A (en) * | 2001-01-25 | 2002-08-09 | Toyota Motor Corp | Charging controller |
| CN103890435A (en) * | 2011-10-21 | 2014-06-25 | 丰田自动车株式会社 | Vehicle control device |
| CN104393636A (en) * | 2014-11-07 | 2015-03-04 | 惠州市亿能电子有限公司 | Battery system usable charge or discharge power estimating method |
| CN104512261A (en) * | 2013-10-07 | 2015-04-15 | 现代自动车株式会社 | System and method for estimating allowable regenerative braking of vehicle |
| CN105083270A (en) * | 2014-05-20 | 2015-11-25 | 现代自动车株式会社 | Method and apparatus for controlling regenerative braking of vehicle |
| CN106970332A (en) * | 2017-05-04 | 2017-07-21 | 成都雅骏新能源汽车科技股份有限公司 | Charging SOC modification methods based on feedback adaptively |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4517273B2 (en) * | 2002-05-21 | 2010-08-04 | トヨタ自動車株式会社 | Charge / discharge control device for secondary battery and charge / discharge control method for secondary battery |
| JP2007151304A (en) * | 2005-11-28 | 2007-06-14 | Mazda Motor Corp | Controller for vehicle generator |
| CN104124724A (en) * | 2013-04-28 | 2014-10-29 | 株式会社日立制作所 | Charging control apparatus and method thereof |
| CN104477040B (en) * | 2014-11-18 | 2016-08-24 | 浙江工业大学之江学院 | Monoergic source electric car time-dependent current regenerating brake control method |
| AU2016203834A1 (en) * | 2015-06-17 | 2017-01-12 | Gs Yuasa International Ltd. | State estimation device and state estimation method |
-
2018
- 2018-06-06 CN CN201810576019.9A patent/CN108790876B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684383A (en) * | 1995-09-19 | 1997-11-04 | Nissan Motor Co., Ltd. | Regenerative charge control system estimating allowable regenerative power |
| JP2002223501A (en) * | 2001-01-25 | 2002-08-09 | Toyota Motor Corp | Charging controller |
| CN103890435A (en) * | 2011-10-21 | 2014-06-25 | 丰田自动车株式会社 | Vehicle control device |
| CN104512261A (en) * | 2013-10-07 | 2015-04-15 | 现代自动车株式会社 | System and method for estimating allowable regenerative braking of vehicle |
| CN105083270A (en) * | 2014-05-20 | 2015-11-25 | 现代自动车株式会社 | Method and apparatus for controlling regenerative braking of vehicle |
| CN104393636A (en) * | 2014-11-07 | 2015-03-04 | 惠州市亿能电子有限公司 | Battery system usable charge or discharge power estimating method |
| CN106970332A (en) * | 2017-05-04 | 2017-07-21 | 成都雅骏新能源汽车科技股份有限公司 | Charging SOC modification methods based on feedback adaptively |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108790876A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108790876B (en) | Method and device for adjusting feedback power of electric automobile and automobile | |
| CN109787260B (en) | Energy storage system control method and system for smooth distributed photovoltaic power generation short-term fluctuation | |
| CN102163849B (en) | Wind power output adaptive smoothing method based on energy storage battery charge state feedback | |
| CN102055216B (en) | Charging control method for battery of electric vehicle and equipment thereof | |
| CN102208703B (en) | Storage battery charging method | |
| JP4578498B2 (en) | Control system for stand-alone power source using solar battery, maximum power tracking method and lead-acid battery full charge method | |
| WO2014151976A2 (en) | Pulse battery charger methods and systems for improved charging of lithium ion batteries | |
| JP2002369391A (en) | Method and device for controlling residual capacity of secondary battery | |
| CN102904323A (en) | Pulse wave modulation charging method and pulse wave modulation charging device | |
| CN111873813B (en) | Automobile torque control method and system | |
| CN108336431A (en) | Charging control method, device and system of battery module | |
| CN105553057B (en) | A kind of electric automobile charging station control system based on electric network protection | |
| CN110867873A (en) | Frequency control method for ocean island microgrid | |
| JP2016119728A (en) | Storage battery charge/discharge control device and storage battery charge/discharge control method | |
| CN110884364A (en) | Power tracking-based electric vehicle hybrid power supply control method | |
| CN111267626A (en) | Braking energy recovery method and system and electric automobile | |
| CN107733000B (en) | Charging method and charger | |
| CN109474039A (en) | Direct current converter DCDC voltage regulation control method, device, equipment and automobile | |
| CN110015124A (en) | For the method and apparatus of Charge Management, charging equipment and machine readable media | |
| CN112158102A (en) | Peak current control method of vehicle-mounted lithium battery system | |
| CN116961184B (en) | Method and device for automatically controlling capacitance and electric quantity balance of household energy storage system | |
| CN109383324A (en) | For the method and apparatus of Charge Management, charging equipment and machine readable media | |
| CN111775773A (en) | Vehicle fuel cell power control method and device | |
| CN107834604B (en) | Active power output control system and method for photovoltaic power station | |
| CN110676522B (en) | Battery output power adjusting method, battery management system and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |