CN103101445A - Working mode control method for range extender - Google Patents
Working mode control method for range extender Download PDFInfo
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Abstract
The invention provides a working mode control method for a range extender. The working mode control method includes the following steps: step a, a current working mode of the range extender is judged; step b, remaining electric quantity of a basic dynamic battery pack corresponding to the current working mode of the range extender is obtained through calculation according to the current working mode of the range extender; and step c, a target value of the remaining electric quantity of the dynamic battery pack corresponding to the current working mode of the range extender is obtained through calculation according to the remaining electric quantity, obtained in the step b, of the basic dynamic battery pack. According to the working mode control method for the range extender, different SOC target values are respectively calculated and obtained according to different working modes of the range extender, and therefore the situation that one SOC target value is used for all the different working modes is avoided, the range extender is enabled to work stably in the different working modes, and frequent starting and shutting-down of the range extender are avoided.
Description
Technical field
The present invention relates to the control method of distance increasing unit, specifically, relate to the control method of distance increasing unit mode of operation.
Background technology
In extended-range electric vehicle, the mode of operation of distance increasing unit comprises pure power mode, automatic mode and increases the journey pattern.For the different working modes of distance increasing unit, the unlocking condition of different distance increasing units need to be set respectively, make distance increasing unit stable operation and prevent the distance increasing unit frequent starting under different mode of operations.Distance increasing unit (is expressed as a percentage by the real-time power battery pack dump energy with the extended-range vehicle, hereinafter to be referred as the SOC value) judge relatively with a predefined target SOC value whether distance increasing unit is opened, when SOC value≤target SOC value, distance increasing unit starts and begins generating, part electric weight is used for drive motor and guarantees normally travelling of vehicle, and unnecessary electric weight is used for charging to power battery pack; When SOC value＞target SOC value, distance increasing unit stops generating electricity and closing.
Summary of the invention
The control method that the purpose of this invention is to provide a kind of distance increasing unit mode of operation makes distance increasing unit stable operation and prevent the distance increasing unit frequent starting under different mode of operations.
The invention provides a kind of operating mode control method of distance increasing unit, comprise a, the current residing mode of operation of judgement distance increasing unit; B, residing mode of operation current according to distance increasing unit calculate the basic motive battery pack dump energy corresponding with this mode of operation; C, calculate the power battery pack dump energy expected value corresponding with this mode of operation according to the basic motive battery pack dump energy that obtains in step b.The operating mode control method of distance increasing unit, different working modes for distance increasing unit, calculated respectively different SOC expected values, avoid all using a SOC expected value for different mode of operations, make distance increasing unit under different mode of operations, the work that distance increasing unit can be stable and avoid it to start frequently and close.
In another schematic embodiment of the operating mode control method of distance increasing unit, in step b, when the current residing mode of operation of judgement distance increasing unit is automatic mode, operating mode control method comprises further b1, judgement use the vehicle of distance increasing unit whether to be equipped with GPS, if judgment result is that be enter step b2, otherwise enter step b3; B2, calculate the first basic motive battery pack dump energy and automatically be worth; B3, calculate the second basic motive battery pack dump energy and automatically be worth; B4, value automatic according to the first basic motive battery pack dump energy or the second basic motive battery pack dump energy value automatically calculate the basic motive battery pack dump energy corresponding with automatic mode.
In the another kind of schematically embodiment of the operating mode control method of distance increasing unit, in step b2 the first basic motive battery pack dump energy automatically value obtained by the following course continuation mileage between GPS calculating origin and destination, and following course continuation mileage is converted to the first basic motive battery pack dump energy by following table and automatically is worth:
In another schematic embodiment of the operating mode control method of distance increasing unit, step b4 further comprises b41, calculates the following coefficient of correction of distance increasing unit; The historical coefficient of correction of b42, calculating distance increasing unit; B43, obtain basic motive battery pack dump energy by following coefficient of correction and historical coefficient of correction.
In another schematic embodiment of the operating mode control method of distance increasing unit, following coefficient of correction is multiplied each other by the following speed of a motor vehicle integration coefficient of correction of the remaining mileage coefficient of correction of distance increasing unit and distance increasing unit and obtains,
The business of the remaining mileage that GPS calculates and following continual mileage is converted to following coefficient of correction by following table:
, the long-pending following speed of a motor vehicle integrated value that obtains distance increasing unit of the following average ground speed of the remaining mileage that GPS calculates and distance increasing unit, following speed of a motor vehicle integrated value is converted to following speed of a motor vehicle integration coefficient of correction by following table:
In another schematic embodiment of the operating mode control method of distance increasing unit, historical coefficient of correction is multiplied each other by the historical speed of a motor vehicle coefficient of correction of the historical continual mileage coefficient of correction of distance increasing unit and distance increasing unit and obtains, obtained the historical continual mileage of distance increasing unit by the aviation value of the vehicle single continual mileage of distance increasing unit, this history continual mileage is converted to historical continual mileage coefficient of correction by following table:
, and obtained the historical speed of a motor vehicle of distance increasing unit by the aviation value of the vehicle speed of distance increasing unit, this history speed of a motor vehicle is converted to historical speed of a motor vehicle coefficient of correction by following table:
In another schematic embodiment of the operating mode control method of distance increasing unit, step c further comprises:
The environmental correction coefficient of c1, calculating distance increasing unit; C2, calculating power battery pack dump energy expected value, its computing formula is:
Power battery pack dump energy expected value=basic motive battery pack dump energy * environmental correction coefficient,
With the power battery pack dump energy expected value that calculates, the ceiling value corresponding with the target requirement power of distance increasing unit and low limit value are relatively, if power battery pack dump energy expected value is greater than ceiling value, with ceiling value assignment and power battery pack dump energy expected value, if power battery pack dump energy expected value is less than low limit value, will hang down limit value assignment and power battery pack dump energy expected value, if power battery pack dump energy expected value is between low limit value and ceiling value, power battery pack dump energy expected value is constant.
In another schematic embodiment of the operating mode control method of distance increasing unit, the environmental correction coefficient is the ambient temperature coefficient of correction of distance increasing unit, the ambient pressure coefficient of correction of distance increasing unit and the product of battery temperature coefficient of correction, and the ambient temperature coefficient of correction is obtained by following table:
Wherein, the ambient temperature in table is the ambient temperature of power battery pack work; The ambient pressure coefficient of correction is obtained by following table:
Wherein, the ambient pressure in table is the ambient pressure of power battery pack work; The battery temperature coefficient of correction is obtained by following table:
Wherein, the battery temperature in table is the temperature of power battery pack.
In another schematic embodiment of the operating mode control method of distance increasing unit, target requirement power, and relation such as the following table of ceiling value and low limit value:
In another schematic embodiment of the operating mode control method of distance increasing unit, when the vehicle that uses distance increasing unit is to be unkitted when having GPS, following coefficient of correction value is 1.
Hereinafter will be in clear and definite understandable mode, the accompanying drawings preferred embodiment is further described above-mentioned characteristic, technical characterictic, advantage and the implementation thereof of the operating mode control method of distance increasing unit.
Description of drawings
Fig. 1 is used for the diagram of circuit of a kind of exemplary embodiment of operating mode control method of explanation distance increasing unit.
Fig. 2 is used for the diagram of circuit of the another kind of exemplary embodiment of operating mode control method of explanation distance increasing unit.
Fig. 3 is used for the diagram of circuit of another exemplary embodiment of operating mode control method of explanation distance increasing unit.
Fig. 4 is used for the diagram of circuit of another exemplary embodiment of operating mode control method of explanation distance increasing unit.
The specific embodiment
Understand for technical characterictic, purpose and effect to invention have more clearly, now contrast description of drawings the specific embodiment of the present invention, identical label represents identical or structural similitude but the identical parts of function in each figure.
For making drawing succinct, only schematically shown part related to the present invention in each figure, they do not represent that it is as the practical structures of product.In addition, so that drawing succinctly is convenient to understand, the parts that have same structure or function in some figure have only schematically illustrated one of them, or have only marked one of them.
Fig. 1 is used for the diagram of circuit of a kind of exemplary embodiment of operating mode control method of explanation distance increasing unit.As shown in the figure, the operating mode control method of distance increasing unit starts from step S10, and the initialization of completion system in S10 then enters step S20.
In step S20, judge that whether the current residing mode of operation of distance increasing unit is automatic mode, if yes then enter step S60, otherwise enters step S30.
In step S30, judge whether the current residing mode of operation of distance increasing unit is pure power mode, if yes then enter step S40, increase the journey pattern otherwise enter step S50 and judge that distance increasing unit is in.Distance increasing unit is forced to not work under pure power mode, and the electric energy of car load by power battery pack drives and travel, but for the use safety that guarantees power battery pack and the driving safety of car load, and the SOC expected value can arrange one greater than 0 numeral.Increasing pressure distance increasing unit work under the journey pattern, generally use more in the operating modes such as high vehicle speeds, long distance travel, anxious acceleration, but in the actual use procedure of vehicle, because distance increasing unit is mainly to decide operating mode work, if battery electric quantity is more sufficient, the demand power sum that drives the charging of Vehicle Driving Cycle and battery is forbidden distance increasing unit work this moment during also less than the generated output of distance increasing unit.Therefore in increasing the journey pattern, need equally target setting SOC value, the guarantee distance increasing unit most effective, economy is best.
In step S40, calculate corresponding to the basic SOC value under pure power mode, then enter step S70.
In step S50, calculate corresponding to the basic SOC value that increases under the journey pattern, then enter step S70.
In step S60, calculate corresponding to the basic SOC value under automatic mode, then enter step S70.
In step S70, the basic SOC value according to calculating in step S40, step S50 or step S60 calculates the SOC expected value.
In step S80, finish whole control flow.
The operating mode control method of distance increasing unit, different working modes for distance increasing unit, calculated respectively different SOC expected values, avoid all using a SOC expected value for different mode of operations, make distance increasing unit under different mode of operations, the work that distance increasing unit can be stable and avoid it to start frequently and close.
Fig. 2 is used for the diagram of circuit of the another kind of exemplary embodiment of operating mode control method of explanation distance increasing unit.As shown in the figure, step S60 further comprises step S62, step S64, step S66 and step S68.
Wherein, in step S62, distance increasing unit judges whether vehicle is equipped with the GPS navigation instrument, if judgment result is that and be enter step S64, otherwise enters step S66.
In step S64, according to the destination of chaufeur setting, and the plan information that travels of the upper storage of GPS, according to the principle of oil consumption the best, calculate a SOC and automatically be worth.In a kind of exemplary embodiment of the operating mode control method of distance increasing unit, the one SOC is worth the destination of setting according to chaufeur automatically, the following course continuation mileage that is calculated between origin and destination by GPS obtains, and according to the corresponding relation shown in table 1, following course continuation mileage is converted to a SOC and automatically is worth:
。Certainly can also adopt other algorithms to obtain a SOC is worth automatically.
In step S66, historical continual mileage and the historical speed of a motor vehicle according to vehicle calculate the 2nd SOC and automatically are worth.In a kind of exemplary embodiment of the operating mode control method of distance increasing unit, the automatic value of the 2nd SOC can be made as 40%, and calibration value can be set according to the consumption minimization under actual condition of service.
In step S68, value automatic according to a SOC or the 2nd SOC value automatically calculate the basic SOC value corresponding with automatic mode.
Fig. 3 is used for the diagram of circuit of another exemplary embodiment of operating mode control method of explanation distance increasing unit.As shown in the figure, in a kind of exemplary embodiment of the operating mode control method of distance increasing unit, step S68 further comprises step S682, step S684 and step S686.
Wherein, in step S682, calculate the following coefficient of correction of distance increasing unit, then enter step S684.In a kind of exemplary embodiment of the operating mode control method of distance increasing unit, following coefficient of correction is multiplied each other by the following speed of a motor vehicle integration coefficient of correction of the remaining mileage coefficient of correction of distance increasing unit and distance increasing unit and obtains.Wherein, the remaining mileage that is calculated by GPS and the business of following continual mileage are converted to following coefficient of correction by table 2:
。The long-pending following speed of a motor vehicle integrated value that obtains distance increasing unit of the remaining mileage that is calculated by GPS and the following average ground speed of distance increasing unit, following speed of a motor vehicle integrated value is converted to following speed of a motor vehicle integration coefficient of correction by table 3:
。In a kind of exemplary embodiment of the operating mode control method of distance increasing unit, but during vehicles failed equipment GPS, following coefficient of correction value is 1.
In step S684, calculate the historical coefficient of correction of distance increasing unit, then enter step S686.In a kind of exemplary embodiment of the operating mode control method of distance increasing unit, historical coefficient of correction is multiplied each other by the historical speed of a motor vehicle coefficient of correction of the historical continual mileage coefficient of correction of distance increasing unit and distance increasing unit and obtains.Wherein, historical continual mileage coefficient of correction is converted to historical continual mileage coefficient of correction by historical continual mileage by table 4, and historical continual mileage is the aviation value of single continual mileage in several times driving process of driving a vehicle recently in history, and concrete number of times can be demarcated.
。Obtained the historical speed of a motor vehicle of distance increasing unit by the aviation value of the vehicle speed of distance increasing unit, this history speed of a motor vehicle is converted to historical speed of a motor vehicle coefficient of correction by table 5:
In step S686, calculate basic motive battery pack dump energy by following coefficient of correction and historical coefficient of correction, its computing formula is:
Basic SOC value=SOC is worth the historical coefficient of correction of the following coefficient of correction * of * automatically
Fig. 4 is used for the diagram of circuit of another exemplary embodiment of operating mode control method of explanation distance increasing unit.As shown in the figure, step S70 further comprises step S72 and step S74.
Wherein, in step S72, calculate the environmental correction coefficient of distance increasing unit, then enter step S74.In another exemplary embodiment of operating mode control method of distance increasing unit, the environmental correction coefficient is the ambient temperature coefficient of correction of distance increasing unit, the ambient pressure coefficient of correction of distance increasing unit and the product of battery temperature coefficient of correction.Under different mode of operations, ambient temperature is converted to ambient temperature coefficient of correction under different working modes by table 6.
Ambient temperature in table is the ambient temperature of the power battery pack work of outfit distance increasing unit vehicle.Under different mode of operations, ambient pressure is converted to ambient pressure coefficient of correction under different working modes by table 7.
Ambient pressure in table is the ambient pressure of the power battery pack work of outfit distance increasing unit vehicle.Under different mode of operations, battery temperature is converted to battery temperature coefficient of correction under different working modes by table 8.
Battery temperature in table is the temperature of the power battery pack of outfit distance increasing unit vehicle.
In step S74, calculate power battery pack dump energy expected value, its computing formula is:
Power battery pack dump energy expected value=basic motive battery pack dump energy * environmental correction coefficient.
With the power battery pack dump energy expected value that calculates, the ceiling value corresponding with the target requirement power of distance increasing unit and low limit value are relatively, if power battery pack dump energy expected value is greater than ceiling value, with ceiling value assignment and power battery pack dump energy expected value; If power battery pack dump energy expected value less than low limit value, will be hanged down limit value assignment and power battery pack dump energy expected value; If power battery pack dump energy expected value is between low limit value and ceiling value, power battery pack dump energy expected value is constant, the target requirement power target requirement power that to be the distance increasing unit electric-control system go out according to drive motor power and electricity consumption device power calculation.In another exemplary embodiment of operating mode control method of distance increasing unit, target requirement power is converted to ceiling value and low limit value by table 9.
。
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the embodiment that is described in this article " schematically " should be interpreted as a kind of preferred or have more the technical scheme of advantage.
Be to be understood that, although this specification sheets is described according to each embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should make specification sheets as a whole, technical scheme in each embodiment also can through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Above listed a series of detailed description is only illustrating for feasibility embodiment of the present invention; they are not to limit protection scope of the present invention, all disengaging within equivalent embodiment that skill spirit of the present invention does or change all should be included in protection scope of the present invention.
Claims (10)
1. the operating mode control method of distance increasing unit comprises:
A, the current residing mode of operation of the described distance increasing unit of judgement;
B, residing mode of operation current according to described distance increasing unit calculate the basic motive battery pack dump energy corresponding with this mode of operation; With
C, calculate the power battery pack dump energy expected value corresponding with this mode of operation according to the described basic motive battery pack dump energy that obtains in described step b.
2. operating mode control method as claimed in claim 1, in wherein said step b, when the current residing mode of operation of the described distance increasing unit of judgement was automatic mode, described operating mode control method further comprised:
B1, judgement use the vehicle of described distance increasing unit whether to be equipped with GPS, if judgment result is that and be enter step b2, otherwise enter step b3;
B2, calculate the first basic motive battery pack dump energy and automatically be worth;
B3, calculate the second basic motive battery pack dump energy and automatically be worth; With
B4, automatically value or the automatic value of described the second basic motive battery pack dump energy calculate the described basic motive battery pack dump energy corresponding with described automatic mode according to described the first basic motive battery pack dump energy.
3. operating mode control method as claimed in claim 2, wherein the first basic motive battery pack dump energy described in step b2 automatically value obtained by the following course continuation mileage between described GPS calculating origin and destination, and described following course continuation mileage is converted to described the first basic motive battery pack dump energy by following table and automatically is worth:
。
4. operating mode control method as claimed in claim 3, wherein said step b4 further comprises:
The following coefficient of correction of b41, the described distance increasing unit of calculating;
The historical coefficient of correction of b42, the described distance increasing unit of calculating; With
B43, obtain described basic motive battery pack dump energy by described following coefficient of correction and described historical coefficient of correction.
5. operating mode control method as claimed in claim 4, wherein said following coefficient of correction are multiplied each other by the following speed of a motor vehicle integration coefficient of correction of the remaining mileage coefficient of correction of described distance increasing unit and described distance increasing unit and obtain,
The business of the remaining mileage that GPS calculates and described following continual mileage is converted to described following coefficient of correction by following table:
, the long-pending following speed of a motor vehicle integrated value that obtains described distance increasing unit of the following average ground speed of the remaining mileage that described GPS calculates and described distance increasing unit, described following speed of a motor vehicle integrated value is converted to described following speed of a motor vehicle integration coefficient of correction by following table:
。
6. operating mode control method as claimed in claim 4, wherein said historical coefficient of correction are multiplied each other by the historical speed of a motor vehicle coefficient of correction of the historical continual mileage coefficient of correction of described distance increasing unit and described distance increasing unit and obtain,
Obtained the historical continual mileage of described distance increasing unit by the aviation value of the vehicle single continual mileage of described distance increasing unit, this history continual mileage is converted to described historical continual mileage coefficient of correction by following table:
, and obtained the historical speed of a motor vehicle of described distance increasing unit by the aviation value of the vehicle speed of described distance increasing unit, this history speed of a motor vehicle is converted to described historical speed of a motor vehicle coefficient of correction by following table:
。
7. operating mode control method as claimed in claim 1, wherein step c further comprises:
The environmental correction coefficient of c1, the described distance increasing unit of calculating; With
C2, the described power battery pack dump energy expected value of calculating, its computing formula is:
Power battery pack dump energy expected value=basic motive battery pack dump energy * environmental correction coefficient,
With the described power battery pack dump energy expected value that calculates, the ceiling value corresponding with the target requirement power of described distance increasing unit and low limit value compare,
If described power battery pack dump energy expected value is greater than described ceiling value, with described ceiling value assignment and described power battery pack dump energy expected value,
If described power battery pack dump energy expected value is less than described low limit value, with described low limit value assignment and described power battery pack dump energy expected value,
If described power battery pack dump energy expected value is between described low limit value and described ceiling value, described power battery pack dump energy expected value is constant.
8. operating mode control method as claimed in claim 7, the product of the ambient temperature coefficient of correction that wherein said environmental correction coefficient is described distance increasing unit, the ambient pressure coefficient of correction of described distance increasing unit and described battery temperature coefficient of correction,
Described ambient temperature coefficient of correction is obtained by following table:
Wherein, the ambient temperature in table is the ambient temperature of power battery pack work;
Described ambient pressure coefficient of correction is obtained by following table:
Wherein, the ambient pressure in table is the ambient pressure of power battery pack work;
Described battery temperature coefficient of correction is obtained by following table:
Wherein, the battery temperature in table is the temperature of power battery pack.
9. operating mode control method as claimed in claim 7, wherein said target requirement power, and relation such as the following table of described ceiling value and described low limit value:
。
10. operating mode control method as claimed in claim 4, wherein when the vehicle that uses described distance increasing unit be to be unkitted when having GPS, described following coefficient of correction value is 1.
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| CN105674996A (en) * | 2016-01-05 | 2016-06-15 | 惠州市蓝微新源技术有限公司 | BMS based electric automobile travel pre-judgment method and system |
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| WO2024067800A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Vehicle control method and control apparatus, and vehicle |
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