CN106915260A - A kind of stroke-increasing electric automobile course continuation mileage is calculated and display system - Google Patents

Abstract

Calculated the invention discloses a kind of stroke-increasing electric automobile course continuation mileage and display system, including：Signal acquisition process module, computing module and display module, wherein：Signal acquisition process module is used for Real-time Collection and locates the signal of reason sensor, electric auxiliary machinery, entire car controller and battery management system BMS transmission；Computing module is used to calculate course continuation mileage, economic speed and maximum course continuation mileage；Display module is used to show course continuation mileage, economic speed and the maximum course continuation mileage that computing module is calculated.The present invention is realized and calculates display economic speed and maximum course continuation mileage according to the most efficient generated output of distance increasing unit and whole-car parameterses；Operator demand's electricity, remaining battery power and Fuel Remained amount are based on simultaneously, and calculating display can meet the course continuation mileage that driver's driving is required.

Description

A kind of stroke-increasing electric automobile course continuation mileage is calculated and display system

Technical field

The present invention relates to stroke-increasing electric automobile control technology field, more particularly to a kind of stroke-increasing electric automobile continuation of the journey Mileage calculation and display system.

Background technology

With social progress, the enhancing of people's environmental consciousness starts to advocate the trip mode of " low-carbon (LC), environmental protection, green " so that Efficiently, the environmentally friendly, research of energy-saving electric vehicle causes the highest attention of each automobile vendor of the world.And stroke-increasing electric automobile is pure Have the advantages that during motorized motions reduce discharge, reducing energy consumption, its in order to solve pure electric automobile course continuation mileage it is short and design Pure electric automobile with energy supplement unit, it act as：When electrokinetic cell SOC is not enough or during failure distance increasing unit for battery fills Electricity, or direct drive vehicle traveling, distance increasing unit generated output can not meet vehicle traveling demand, it is necessary to increase journey during high-power driving , simultaneously for electro-motive vehicle traveling, now vehicle wants to continue high-power normally travel for device and battery, and its course continuation mileage will be limited In the dump energy of electrokinetic cell.

Current stroke-increasing electric automobile course continuation mileage is obtained into distance travelled by the way that remaining battery power and amount of fuel are equivalent Arrive, the energy that fuel oil can be provided specifically is calculated according to Fuel Remained amount, power averaging fuel consumption, then will The energy that the energy and battery that fuel oil is provided can be provided all changes into the electricity of battery, and the mileage number corresponding to battery electric quantity is It is known, then the course continuation mileage of extended-range electric vehicle can be calculated, and show on the display unit, facilitate driver to add in time Oil, charging.But current stroke-increasing electric automobile do not consider distance increasing unit in real time can generated energy whether can meet driver drive Electricity is employed, distance increasing unit generated energy can always consume battery electric quantity, until battery when that can not meet driving electricity consumption during traveling Cannot discharge, vehicle may will be unable to drive requirement to travel by driver again, require to ensure therefore, it is possible to be driven according to driver The course continuation mileage of normal vehicle operation is less than the course continuation mileage being calculated.If driver is in the process of moving with reference to the continuation of the journey Mileage can produce false judgment, such as under highway, high-speed working condition of overtaking other vehicles, traffic accident is likely to result in when serious.

The content of the invention

It is existing to solve it is an object of the invention to propose that a kind of stroke-increasing electric automobile course continuation mileage is calculated and display system Have in technology due to current stroke-increasing electric automobile do not consider distance increasing unit in real time can generated energy whether can meet driver and drive Electricity consumption, distance increasing unit generated energy can not meet drive electricity consumption when, battery electric quantity can be always consumed during traveling, until battery without Method is discharged, and vehicle may will be unable to drive requirement to travel by driver again, require to ensure car therefore, it is possible to be driven according to driver The course continuation mileage of normally travel is less than the course continuation mileage being calculated.If driver is in the process of moving with reference in the continuation of the journey Journey can produce the problem of false judgment.

To reach above-mentioned purpose, the invention provides following technical scheme：

A kind of stroke-increasing electric automobile course continuation mileage is calculated and display system, including：Signal acquisition process module, calculating mould Block and display module, wherein：

The signal acquisition process module be used for Real-time Collection and locate reason sensor, electric auxiliary machinery, entire car controller and The signal of battery management system BMS transmission；

The computing module is used to calculate course continuation mileage, economic speed and maximum course continuation mileage；

The display module is used to show the course continuation mileage, the economic speed and the maximum course continuation mileage.

Specifically, the sensor includes：Weight sensor and Slope Transducer.

Specifically, the computing module includes：Electricity computing module, fuel oil computing module, course continuation mileage computing module, warp Ji speed computing module and maximum course continuation mileage computing module, wherein：

The electricity computing module is used to be calculated according to the first default computing formula the battery of the stroke-increasing electric automobile Dump energy；

The fuel oil computing module is used to be calculated according to the second default computing formula the fuel oil of the stroke-increasing electric automobile Residue can generated energy；

The course continuation mileage computing module be used for according to the fuel oil can generated energy and the battery dump energy by the Three default computing formula calculate the course continuation mileage of the stroke-increasing electric automobile；

The economic speed computing module is used to be preset by the 4th according to whole-car parameterses and distance increasing unit efficiency power generation power Computing formula calculates the economic speed of the stroke-increasing electric automobile；

The maximum course continuation mileage computing module be used for according to the fuel oil can generated energy and the battery dump energy with And the economic speed calculates the maximum course continuation mileage of the stroke-increasing electric automobile according to the 5th default computing formula.

Specifically, the described first default computing formula is：Q_b=k_b*Q_{b_Total}* SOC%, wherein, Q_bIt is remaining battery electricity Amount；k_bIt is cell discharge efficiency；Q_{b_Total}Battery electric quantity when for battery charge state being 100%, it is known quantity.

Specifically, the described second default computing formula is：Q_f=k_f*M_{f_Total}* V%, wherein, Q_fFor fuel oil residue can be sent out Electricity；k_fIt is the fuel consumption of distance increasing unit；V% is fuel oil residue percentage；M_f-TotalFuel oil quality when being filled for fuel tank, its It is known quantity.

Specifically, when battery, individually electric discharge can meet vehicle traction electricity consumption, and distance increasing unit generates electricity such as with height by constant power When effect power generation charges the battery, the described 3rd default computing formula is：

Wherein：P_bIt is the mean power in pure motor driving short distance Δ s；P_AsIt is electric auxiliary machinery power；P_OptIt is distance increasing unit Efficiency power generation power；v_arvIt is the average speed in vehicle operating range Δ s.

Specifically, when battery individually electric discharge can directly drive vehicle traveling, and distance increasing unit can follow driving demand generate electricity when, Described 3rd presets computing formula is： Wherein, P_eTo travel the average generated output of short distance Δ s distance increasing units；P_AsIt is electric auxiliary machinery power；v_arvIt is vehicle operating range Average speed in Δ s.

Specifically, when battery, individually electric discharge cannot meet vehicle traction traveling demand, and distance increasing unit and battery drive car simultaneously During traveling, the described 3rd default computing formula is：

, wherein, P_ReqFor vehicle drives demand power；P_eTo travel the average generated output of short distance Δ s distance increasing units；P_As It is electric auxiliary machinery power；v_arvIt is the average speed in vehicle operating range Δ s.

Specifically, the described 4th default computing formula is：

, wherein, η is total drive line efficiency；F is coefficient of rolling resistance；α is running gradient；C_DIt is coefficient of air resistance；A It is front face area；M is complete vehicle weight；G is acceleration of gravity.

Specifically, the described 5th default computing formula is：

Wherein, P_OptIt is the efficiency power generation power of distance increasing unit；P_AsIt is electric auxiliary machinery power；v_OptIt is economic speed.

Understood via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of stroke-increasing electric automobile Course continuation mileage is calculated and display system, including：Signal acquisition process module, computing module and display module, wherein：Signal acquisition Processing module is used for Real-time Collection and locates reason sensor, electric auxiliary machinery, entire car controller and battery management system BMS transmission Signal；Computing module is used to calculate course continuation mileage, economic speed and maximum course continuation mileage；Display module is used to show computing module Course continuation mileage, economic speed and the maximum course continuation mileage being calculated.The present invention passes through signal acquisition process module Real-time Collection And locate the signal that reason sensor, electric auxiliary machinery, entire car controller and battery management system BMS are transmitted, then by calculating mould Block calculates course continuation mileage, economic speed and maximum course continuation mileage, finally leads to course continuation mileage, economic speed and maximum course continuation mileage Cross display module to be shown, the present invention is realized and calculates display economy according to the most efficient generated output of distance increasing unit and whole-car parameterses Speed and maximum course continuation mileage；Operator demand's electricity, remaining battery power and Fuel Remained amount are based on simultaneously, and calculating display can Meet driver and drive desired course continuation mileage.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.

Fig. 1 is the structure of a kind of stroke-increasing electric automobile course continuation mileage calculating provided in an embodiment of the present invention and display system Schematic diagram；

Fig. 2 is the structure of a kind of stroke-increasing electric automobile course continuation mileage calculating provided in an embodiment of the present invention and display system Specific schematic diagram.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Accompanying drawing 1 is referred to, Fig. 1 is calculated and aobvious for a kind of stroke-increasing electric automobile course continuation mileage provided in an embodiment of the present invention Show the structural representation of system.As shown in figure 1, calculated the invention discloses a kind of stroke-increasing electric automobile course continuation mileage and shown System, the system concrete structure includes：Signal acquisition process module S1, computing module S2 and display module S3, wherein：

Signal acquisition process module S1 is used for Real-time Collection and locates reason sensor, electric auxiliary machinery, entire car controller and electricity The signal of pond management system BMS transmission；

Computing module S2 is used to calculate course continuation mileage, economic speed and maximum course continuation mileage；

The display module S3 is used to show the course continuation mileage, the economic speed and the maximum course continuation mileage.

Wherein, specifically, the sensor includes：Weight sensor and Slope Transducer.

A kind of stroke-increasing electric automobile course continuation mileage is present embodiments provided to calculate and display system, including：Signal acquisition Processing module, computing module and display module, wherein：Signal acquisition process module be used for Real-time Collection and locate reason sensor, The signal of electric auxiliary machinery, entire car controller and battery management system BMS transmission；Computing module is used to calculate course continuation mileage, economy Speed and maximum course continuation mileage；Display module is used to show course continuation mileage, economic speed and maximum that computing module is calculated Course continuation mileage.The present invention is by signal acquisition process module Real-time Collection and locates reason sensor, electric auxiliary machinery, entire car controller The signal transmitted with battery management system BMS, is then calculated in course continuation mileage, economic speed and maximum continuation of the journey by computing module Journey, is finally shown course continuation mileage, economic speed and maximum course continuation mileage by display module.

Specifically, referring to accompanying drawing 2, Fig. 2 is a kind of stroke-increasing electric automobile course continuation mileage provided in an embodiment of the present invention Calculating and the specific schematic diagram of structure of display system.Wherein, the computing module S2 includes：Electricity computing module S21, fuel oil meter Module S22, course continuation mileage computing module S23, economic speed computing module S24 and maximum course continuation mileage computing module S25 are calculated, Wherein：

Electricity computing module S21 is used to be calculated according to the first default computing formula the remaining battery electricity of stroke-increasing electric automobile Amount；

The fuel oil residue that fuel oil computing module S22 is used to calculate stroke-increasing electric automobile according to the second default computing formula can Generated energy；

Course continuation mileage computing module S23 be used for according to fuel oil can generated energy and battery dump energy default calculated by the 3rd Formula calculates the course continuation mileage of stroke-increasing electric automobile；

Economic speed computing module S24 is used for pre-designed by the 4th according to whole-car parameterses and distance increasing unit efficiency power generation power Calculate the economic speed that formula calculates stroke-increasing electric automobile；

Maximum course continuation mileage computing module S25 is used for can generated energy and battery dump energy and economic speed according to fuel oil The maximum course continuation mileage of stroke-increasing electric automobile is calculated according to the 5th default computing formula.

Specifically, Q_bIt is battery dump energy, Q_b=k_b*Q_{b_Total}* SOC%, wherein, k_bIt is cell discharge efficiency； Q_{b_Total}Battery electric quantity when for battery charge state being 100%, it is known quantity.

Specifically, Q_fFor fuel oil residue can generated energy：Q_f=k_f*M_{f_Total}* V%, wherein, k_fIt is the fuel consumption of distance increasing unit Rate；V% is fuel oil residue percentage；M_f-TotalFuel oil quality when being filled for fuel tank, it is known quantity.

Specifically, when battery, individually electric discharge can meet vehicle traction electricity consumption, and distance increasing unit generates electricity such as with height by constant power Effect power generation is when charging the battery, and remaining battery power and Fuel Remained amount can maintain vehicle to travel duration t to be：

Wherein, P_bIt is the mean power in pure motor driving short distance Δ s；P_AsIt is electric auxiliary machinery power；P_OptIt is distance increasing unit Efficiency power generation power；Therefore, vehicle is with the average speed v in vehicle operating range Δ s_arvDuring traveling, vehicle course continuation mileage S For：

Specifically, when battery, individually electric discharge can directly drive vehicle traveling, and distance increasing unit can follow driving demand to generate electricity When, remaining battery power and Fuel Remained amount can maintain car to travel duration t to be：

Wherein, P_eTo travel the average generated output of short distance Δ s distance increasing units；P_AsIt is electric auxiliary machinery power；Therefore, vehicle With the average speed v in vehicle operating range Δ s_arvDuring traveling, vehicle course continuation mileage S is：

Specifically, when battery, individually electric discharge cannot meet vehicle traction traveling demand, it is necessary to distance increasing unit and battery drive simultaneously When motor-car is travelled, any one consumption is used up and cannot all continue to the work in electrokinetic cell dump energy and fr Condition, thus remaining battery power and Fuel Remained amount can maintain vehicle travel duration t be：

Wherein, P_ReqFor vehicle drives demand power；P_eTo travel the average generated output of short distance Δ s distance increasing units；P_AsFor Electric auxiliary machinery power；Therefore, vehicle is with the average speed v in vehicle operating range Δ s_arvDuring traveling, vehicle course continuation mileage S is：

Specifically, during stroke-increasing electric automobile pure motor driving, vehicle fully relies on the electric energy traveling of battery reserve, has The advantage of " zero-emission, zero oil consumption ", distance increasing unit participates in the electric energy required for can continuing to provide traveling for vehicle that generates electricity, so as to prolong The distance travelled of continuous vehicle, therefore, when distance increasing unit is worked with peak efficiency, vehicle can reach maximum range.

According to distance increasing unit efficiency power generation power, with reference to vehicle running resistance and whole-car parameterses, vehicle can be derived by speed V_OptOperation can reach maximum range：

Can be drawn by calculating and shifting onto：

Wherein, η is total drive line efficiency；F is coefficient of rolling resistance；α is running gradient；C_DIt is coefficient of air resistance；A is Front face area；M is complete vehicle weight；G is acceleration of gravity.

Specifically, the duration t according to used by remaining battery power and Fuel Remained amount calculate traveling maximum course continuation mileage is：

Then the maximum course continuation mileage Smax of vehicle wheeled is：

Wherein, P_OptIt is the efficiency power generation power of distance increasing unit；P_AsIt is electric auxiliary machinery power；v_OptIt is economic speed.

In sum, calculated and display system the invention discloses a kind of stroke-increasing electric automobile course continuation mileage, including：Letter Number acquisition processing module, computing module and display module, wherein：Signal acquisition process module is used for Real-time Collection and locates reason biography The signal of sensor, electric auxiliary machinery, entire car controller and battery management system BMS transmission；Computing module be used for calculate course continuation mileage, Economic speed and maximum course continuation mileage；Display module be used to showing the course continuation mileage, economic speed that computing module is calculated and Maximum course continuation mileage.The present invention is by signal acquisition process module Real-time Collection and locates reason sensor, electric auxiliary machinery, vehicle control Device processed and the signal of battery management system BMS transmission, then calculate course continuation mileage, economic speed and maximum continuous by computing module Boat mileage, is finally shown that the present invention is realized by display module by course continuation mileage, economic speed and maximum course continuation mileage Display economic speed and maximum course continuation mileage are calculated according to the most efficient generated output of distance increasing unit and whole-car parameterses；Simultaneously based on driving Member's demand electricity, remaining battery power and Fuel Remained amount, calculating display can meet the course continuation mileage that driver drives requirement.

It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right Limitation of the invention.

In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.

Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain Lid nonexcludability is included, so that article or equipment including a series of key elements not only include those key elements, but also Including other key elements being not expressly set out, or it is this article or the intrinsic key element of equipment also to include.Do not having In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that in the article including above-mentioned key element Or also there is other identical element in equipment.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention. Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The scope most wide for causing.

Claims (10)

1. a kind of stroke-increasing electric automobile course continuation mileage is calculated and display system, it is characterised in that including：Signal acquisition process mould Block, computing module and display module, wherein：

The signal acquisition process module is used for Real-time Collection and locates reason sensor, electric auxiliary machinery, entire car controller and battery The signal of management system BMS transmission；

The computing module is used to calculate course continuation mileage, economic speed and maximum course continuation mileage；

The display module is used to show the course continuation mileage, the economic speed and the maximum course continuation mileage.

2. stroke-increasing electric automobile course continuation mileage according to claim 1 is calculated and display system, it is characterised in that described Sensor includes：Weight sensor and Slope Transducer.

3. stroke-increasing electric automobile course continuation mileage according to claim 1 is calculated and display system, it is characterised in that described Computing module includes：Electricity computing module, fuel oil computing module, course continuation mileage computing module, economic speed computing module and Maximum course continuation mileage computing module, wherein：

The electricity computing module is used to be calculated according to the first default computing formula the remaining battery of the stroke-increasing electric automobile Electricity；

The fuel oil computing module is used to be calculated according to the second default computing formula the fuel oil residue of the stroke-increasing electric automobile Can generated energy；

The course continuation mileage computing module be used for according to the fuel oil can generated energy and the battery dump energy it is pre- by the 3rd If computing formula calculates the course continuation mileage of the stroke-increasing electric automobile；

The economic speed computing module is used for according to whole-car parameterses and distance increasing unit efficiency power generation power by the 4th default calculating Formula calculates the economic speed of the stroke-increasing electric automobile；

The maximum course continuation mileage computing module is used for can generated energy and the battery dump energy and institute according to the fuel oil State the maximum course continuation mileage that economic speed calculates the stroke-increasing electric automobile according to the 5th default computing formula.

4. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that described First presets computing formula is：Q_b=k_b*Q_{b_Total}* SOC%, wherein, Q_bIt is battery dump energy；k_bIt is cell discharge efficiency； Q_{b_Total}Battery electric quantity when for battery charge state being 100%, it is known quantity.

5. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that described Second presets computing formula is：Q_f=k_f*M_{f_Total}* V%, wherein, Q_fFor fuel oil residue can generated energy；k_fIt is the fuel oil of distance increasing unit Consumption rate；V% is fuel oil residue percentage；M_f-TotalFuel oil quality when being filled for fuel tank, it is known quantity.

6. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that work as battery Individually electric discharge can meet vehicle traction electricity consumption, and distance increasing unit generates electricity when such as being charged the battery with highly efficient power generating by constant power, Described 3rd presets computing formula is： Wherein：P_bIt is the mean power in pure motor driving short distance Δ s；P_AsIt is electric auxiliary machinery power；P_OptIt is the efficient hair of distance increasing unit Electrical power；v_arvIt is the average speed in vehicle operating range Δ s.

7. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that work as battery Individually electric discharge can directly drive vehicle traveling, and distance increasing unit is when can follow driving demand to generate electricity, and the described 3rd default calculates public Formula is： Wherein, P_eTo travel the average generated output of short distance Δ s distance increasing units；P_AsIt is electric auxiliary machinery power；v_arvIt is vehicle operating range Average speed in Δ s.

8. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that work as battery Independent electric discharge cannot meet vehicle traction and travel demand, distance increasing unit and battery drive vehicle traveling simultaneously when, the described 3rd default calculating Formula is： , wherein, P_ReqFor vehicle drives demand power；P_eTo travel the average generated output of short distance Δ s distance increasing units；P_AsFor electronic auxiliary Acc power；v_arvIt is the average speed in vehicle operating range Δ s.

9. stroke-increasing electric automobile course continuation mileage according to claim 2 is calculated and display system, it is characterised in that described 4th presets computing formula is：

$v_{Opt}=\sqrt[3]{\frac{38070{\mathrm{\ηP}}_{Opt}}{C_{D}A}+\sqrt{{\left(\frac{38070{\mathrm{\ηP}}_{Opt}}{C_{D}A}\right)}^2+{\left(\frac{7.05mg(f\cos \mathrm{\α}+\sin \mathrm{\α})}{C_{D}A}\right)}^3}}+\sqrt[3]{\frac{38070{\mathrm{\ηP}}_{Opt}}{C_{D}A}-\sqrt{{\left(\frac{38070{\mathrm{\ηP}}_{Opt}}{C_{D}A}\right)}^2+{\left(\frac{7.05mgf(f\cos \mathrm{\α}+\sin \mathrm{\α})}{C_{D}A}\right)}^3}}$ ,

Wherein, η is total drive line efficiency；F is coefficient of rolling resistance；α is running gradient；C_DIt is coefficient of air resistance；A is for windward Area；M is complete vehicle weight；G is acceleration of gravity.

10. stroke-increasing electric automobile course continuation mileage according to claim 9 is calculated and display system, it is characterised in that institute Stating the 5th default computing formula is：

$S_{\max }=v_{Opt}(t_b+t_f)=v_{Opt}\left(\frac{Q_b+Q_f}{P_{Opt}+P_{As}}\right)=v_{Opt}\left(\frac{k_b*Q_{b\_Total}*SOC\%+k_f*M_{f\_Total}*V\%}{P_{Opt}+P_{As}}\right),$

Wherein, P_OptIt is the efficiency power generation power of distance increasing unit；P_AsIt is electric auxiliary machinery power；v_OptIt is economic speed.