CN104960431A - Energy distributing device and method for electric car based on lithium-rich manganese-based lithium battery - Google Patents

Energy distributing device and method for electric car based on lithium-rich manganese-based lithium battery Download PDF

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CN104960431A
CN104960431A CN201510430804.XA CN201510430804A CN104960431A CN 104960431 A CN104960431 A CN 104960431A CN 201510430804 A CN201510430804 A CN 201510430804A CN 104960431 A CN104960431 A CN 104960431A
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lithium
rich manganese
super capacitor
battery
power
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CN104960431B (en
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吴晓刚
吕思宇
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Abstract

The invention discloses an energy distributing device and method for an electric car based on a lithium-rich manganese-based lithium battery, and relates to a configuration of a compound power supply and an energy distributing method which use the lithium-rich manganese-based lithium battery as a main power source and a supercapacitor as an auxiliary power source. The energy distributing device and method solve the problem that when a conventional electric vehicle runs at a high speed, the power demands of the conventional electric vehicle cannot be met. Through the design of the corresponding energy distributing method disclosed by the invention, the energy of the compound power supply can be reasonably distributed, so that the requirements of users for the continuous driving mileage of the electric vehicle are met, and the continuous driving mileage is increased; besides, the power demands of the electric vehicle running at a high speed are met, so that the electric vehicle can normally run at different speeds. The energy distributing device and method disclosed by the invention are suitable for the energy distribution of the electric vehicle based on the lithium-rich manganese-based lithium battery.

Description

A kind of power distribution means based on lithium-rich manganese-based lithium battery motor-car and energy distributing method
Technical field
The present invention relates to one with lithium-rich manganese-based lithium cell for main power source, ultracapacitor is configuration and the energy distributing method of the compound energy of auxiliary power supply.
Background technology
Nowadays battery-driven car adopts a kind of battery as propulsion source mostly, so often causes running distance of eletric vehicles not enough, occurs the problem of the demand of the dynamic property that cannot meet battery-driven car when battery-driven car is run at high speed.
Summary of the invention
The present invention is the problem that there will be the demand of the dynamic property that cannot meet battery-driven car in order to solve existing battery-driven car when running at high speed, and proposes a kind of power distribution means based on lithium-rich manganese-based lithium battery motor-car and energy distributing method.
A kind of power distribution means based on lithium-rich manganese-based lithium battery motor-car of the present invention, it comprises lithium-rich manganese-based lithium cell, and it also comprises car speed sensor, accelerator pedal sensor, brake pedal sensor, entire car controller, battery management system, alarm module, DC/DC conv, super capacitor and discharge device;
Car speed sensor is for detecting the battery-driven car speed of a motor vehicle, accelerator pedal sensor is for detecting Das Gaspedal aperture state, brake pedal sensor is for detecting the aperture state of brake pedal, the vehicle speed signal input end of entire car controller connects the signal output part of car speed sensor, the Das Gaspedal opening amount signal input end of entire car controller connects the signal output part of accelerator pedal sensor, the brake pedal opening amount signal input end of entire car controller connects the signal output part of brake pedal sensor, battery management system is for the residual electric quantity of the residual electric quantity and super capacitor that detect lithium-rich manganese-based battery,
The remaining power signal input end of entire car controller connects the remaining power signal mouth of battery management system, battery management system is for the dump energy of the dump energy and super capacitor that gather lithium cell, and the dump energy of lithium-rich manganese-based lithium cell gathered and the remaining power signal of super capacitor are sent to vehicle management system, the power supply signal I/O of actuator connects the power supply signal input/output terminal of super capacitor, the power supply signal I/O of lithium-rich manganese-based lithium cell connects the power supply signal input/output terminal of DC/DC conv, the power supply signal I/O of DC/DC conv connects the power supply input/output terminal of actuator, the cell output control signal mouth of entire car controller connects the output power signal input part of DC/DC conv, the earial drainage control signal mouth of entire car controller connects the earial drainage control signal input end of discharge device, discharge device connects the current signal output end of DC/DC conv, the alarm signal output ends of entire car controller connects the alarm control signal input end of alarm module, the drive singal input power signal output part of the drive motor of the drive singal output end power signal input part connecting electric automobile of actuator.
Utilize the energy distributing method of the above-mentioned power distribution means based on lithium-rich manganese-based lithium battery motor-car, the concrete steps of the method are:
Step one, employing car speed sensor gather the speed of electronlmobil, accelerator pedal sensor is adopted to gather the aperture of electric automobile pedal, adopt brake pedal sensor to gather the aperture of brake pedal, adopt battery management system to gather the remaining capacity SOC of lithium-rich manganese-based lithium cell simultaneously 1with the remaining capacity SOC of super capacitor 2;
Step 2, entire car controller gather the remaining capacity SOC of lithium-rich manganese-based lithium cell by battery management system 1judge the remaining capacity SOC of lithium-rich manganese-based battery 1whether be less than the minimum threshold values h of lithium-rich manganese-based lithium battery charge state; If so, then step 3 is performed; Otherwise execution step 4;
Step 3, entire car controller send low electricity warning energizing signal to alarm module; Return step;
Step 4, judge whether the opening amount signal of the electric automobile pedal that accelerator pedal sensor collects is greater than 0, when the opening amount signal of Das Gaspedal is greater than 0, adopts and calculate car load driving power P according to the speed of Das Gaspedal aperture and electronlmobil e, perform step 5, otherwise perform step 10;
Step 5, the driving power P judging required for electronlmobil ewhether be greater than the power maxim P of lithium-rich manganese-based lithium cell 2; If P ebe greater than P 2, then entire car controller controls lithium-rich manganese-based lithium cell Maximum Power Output P by DC/DC conv 2, meanwhile, adopt super capacitor simultaneously to actuator horsepower output P b=P e-P 2; Return step one, if P ebe less than P 2, perform step 6;
Step 6, the driving power P judging required for electronlmobil ewhether be greater than the minimum value P of the power of lithium-rich manganese-based lithium cell 1if, P ebe less than P 1then perform step 7, otherwise, perform step 8;
Step 7, judge the remaining capacity SOC of super capacitor 2the no minimum threshold values g being less than super capacitor state-of-charge, if so, then performs step 8, otherwise, perform step 9;
Step 8, entire car controller regulate the horsepower output of lithium-rich manganese-based lithium cell by DC/DC changer, make the horsepower output P of lithium-rich manganese-based lithium cell aequal the driving power P required for electronlmobil e, lithium-rich manganese-based lithium cell is separately for battery-driven car provides driving power;
Step 9, entire car controller close the power stage of lithium-rich manganese-based lithium cell by DC/DC changer, and super capacitor provides driving power for battery-driven car separately, super capacitor horsepower output P b=P e; Return step;
Step 10, judge whether the brake pedal aperture of brake pedal sensor collection is greater than 0, if not, then perform step 11; If so, then step 12 is performed;
The remaining capacity SOC of the super capacitor that step 11, entire car controller are gathered by battery management system 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then return step one; If be less than γ, entire car controller by DC/DC changer regulate the horsepower output of lithium-rich manganese-based lithium cell through actuator for by actuator be super capacitor charging, charging terminate after return step one;
Step 12, entire car controller calculate the B.P. P of battery-driven car b, the remaining capacity SOC of the super capacitor gathered by battery management system 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then perform step 13; If SOC 2be less than γ, entire car controller by DC/DC changer regulate the horsepower output of lithium-rich manganese-based lithium cell through actuator be super capacitor charging, charging terminate after return step one;
Step 13, judge the remaining capacity SOC of lithium-rich manganese-based lithium cell 1whether be greater than maximum threshold values δ, the SOC of lithium-rich manganese-based lithium battery charge state 1if be greater than δ, then carry out earial drainage by discharge device, return and perform step one, if SOC 1be less than δ, then reclaiming braking energy by actuator through DC/DC conv is lithium-rich manganese-based lithium cell charging, returns step one after charging terminates.
The present invention takes full advantage of the advantage of lithium-rich manganese-based lithium cell high-energy-density and super capacitor high power density, by formulating corresponding energy distributing method, the energy of compound energy is reasonably distributed, both meet the requirement of user for running distance of eletric vehicles, add the continual mileage of battery-driven car; Meet again the dynamic property demand of battery-driven car when running at high speed, battery-driven car can normally be travelled under the different speed of a motor vehicle.
Accompanying drawing explanation
Fig. 1 is the electrical principle block diagram of the power distribution means based on lithium-rich manganese-based lithium battery motor-car described in invention.
Detailed description of the invention
Detailed description of the invention one, composition graphs 1 illustrate present embodiment, a kind of power distribution means based on lithium-rich manganese-based lithium battery motor-car described in present embodiment, it comprises lithium-rich manganese-based lithium cell, and it also comprises car speed sensor 1, accelerator pedal sensor 2, brake pedal sensor 3, entire car controller 4, battery management system 5, alarm module 6, DC/DC conv 7, super capacitor 8 and discharge device 11;
Car speed sensor 1 is for detecting the battery-driven car speed of a motor vehicle, accelerator pedal sensor 2 is for detecting Das Gaspedal aperture state, brake pedal sensor 3 is for detecting the aperture state of brake pedal, the vehicle speed signal input end of entire car controller 4 connects the signal output part of car speed sensor 1, the Das Gaspedal opening amount signal input end of entire car controller 4 connects the signal output part of accelerator pedal sensor 2, the brake pedal opening amount signal input end of entire car controller 4 connects the signal output part of brake pedal sensor 3, battery management system 5 is for the residual electric quantity of the residual electric quantity and super capacitor of examining lithium-rich manganese-based lithium cell,
The remaining power signal input end of entire car controller 4 connects the remaining power signal mouth of battery management system 5, battery management system 8 is for the dump energy of the dump energy and super capacitor that gather lithium cell, and the dump energy of lithium-rich manganese-based lithium cell gathered and the remaining power signal of super capacitor are sent to vehicle management system 10, the power supply signal I/O of actuator 9 connects the power supply signal input/output terminal of super capacitor, the power supply signal I/O of lithium-rich manganese-based lithium cell connects the power supply signal input/output terminal of DC/DC conv 7, the power supply signal I/O of DC/DC conv 7 connects the power supply input/output terminal of actuator 9, the cell output control signal mouth of entire car controller 4 connects the output power signal input part of DC/DC conv 7, the earial drainage control signal mouth of entire car controller 4 connects the earial drainage control signal input end of discharge device 11, discharge device 11 connects the current signal output end of DC/DC conv 7, the alarm signal output ends of entire car controller 4 connects the alarm control signal input end of alarm module 6, the drive singal input power signal output part of the drive motor 10 of the drive singal output end power signal input part connecting electric automobile of actuator 9.
The present invention adopts a kind of motive-power battery super capacitor to add the propulsion source of compound energy as battery-driven car of the lithium-rich manganese-based lithium cell of a kind of energy-type cells, provide the energy distributing method of this compound energy simultaneously, make the energy distribution of compound energy more reasonable, avoid the unnecessary waste of energy, add the continual mileage of battery-driven car.
Detailed description of the invention two, present embodiment are the energy distributing methods of the power distribution means based on lithium-rich manganese-based lithium battery motor-car utilized described in detailed description of the invention one, and the concrete steps of the method are:
Step one, employing car speed sensor 1 gather the speed of electronlmobil, accelerator pedal sensor 2 is adopted to gather the aperture of electric automobile pedal, adopt brake pedal sensor 3 to gather the aperture of brake pedal, adopt battery management system 5 to gather the remaining capacity SOC of lithium-rich manganese-based lithium cell simultaneously 1with the remaining capacity SOC of super capacitor 2;
Step 2, entire car controller 4 gather the remaining capacity SOC of lithium-rich manganese-based lithium cell by battery management system 5 1judge the remaining capacity SOC of lithium-rich manganese-based battery 1whether be less than the minimum threshold values h of lithium-rich manganese-based lithium battery charge state; If so, then step 3 is performed; Otherwise execution step 4;
Step 3, entire car controller 4 send low electricity warning energizing signal to alarm module 6; Return step;
Step 4, judge whether the opening amount signal of the electric automobile pedal that accelerator pedal sensor 2 collects is greater than 0, when the opening amount signal of Das Gaspedal is greater than 0, adopts and calculate car load driving power P according to the speed of Das Gaspedal aperture and electronlmobil e, perform step 5, otherwise perform step 10;
Step 5, the driving power P judging required for electronlmobil ewhether be greater than the power maxim P of lithium-rich manganese-based lithium cell 2; If P ebe greater than P 2, then entire car controller 4 controls lithium-rich manganese-based lithium cell Maximum Power Output P by DC/DC conv 7 2, meanwhile, adopt super capacitor simultaneously to actuator 9 horsepower output P b=P e-P 2; Return step one, if P ebe less than P 2, perform step 6;
Step 6, the driving power P judging required for electronlmobil ewhether be greater than the minimum value P of the power of lithium-rich manganese-based lithium cell 1if, P ebe less than P 1then perform step 7, otherwise, perform step 8;
Step 7, judge the remaining capacity SOC of super capacitor 2the no minimum threshold values g being less than super capacitor state-of-charge, if so, then performs step 8, otherwise, perform step 9;
Step 8, entire car controller 4 regulate the horsepower output of lithium-rich manganese-based lithium cell by DC/DC changer 7, make the horsepower output P of lithium-rich manganese-based lithium cell aequal the driving power P required for electronlmobil e, lithium-rich manganese-based lithium cell is separately for battery-driven car provides driving power;
Step 9, entire car controller 4 close the power stage of lithium-rich manganese-based lithium cell by DC/DC changer 7, super capacitor provides driving power for battery-driven car separately, super capacitor horsepower output P b=P e; Return step;
Step 10, judge whether the brake pedal aperture that brake pedal sensor 3 gathers is greater than 0, if not, then perform step 11; If so, then step 12 is performed;
The remaining capacity SOC of the super capacitor that step 11, entire car controller 4 are gathered by battery management system 5 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then return step one; If be less than γ, entire car controller 4 regulates the horsepower output of lithium-rich manganese-based lithium cell through actuator 9 for be charged for super capacitor 8 by actuator 8 by DC/DC changer 7, returns step one after charging terminates;
Step 12, entire car controller 4 calculate the B.P. P of battery-driven car b, the remaining capacity SOC of the super capacitor gathered by battery management system 5 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then perform step 13; If SOC 2be less than γ, entire car controller 4 regulates the horsepower output of lithium-rich manganese-based lithium cell to charge for super capacitor 8 through actuator 9 by 1DC/DC changer 7, returns step one after charging terminates;
Step 13, judge the remaining capacity SOC of lithium-rich manganese-based lithium cell 1whether be greater than maximum threshold values δ, the SOC of lithium-rich manganese-based lithium battery charge state 1if be greater than δ, then carry out earial drainage by discharge device, return and perform step one, if SOC 1be less than δ, then reclaiming braking energy by actuator 9 through DC/DC conv 7 is lithium-rich manganese-based lithium cell charging, returns step one after charging terminates.
Detailed description of the invention three, present embodiment are that the minimum threshold values h of lithium-rich manganese-based lithium battery charge state is 20% of lithium-rich manganese-based lithium cell Full Charge Capacity to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car.
Detailed description of the invention four, present embodiment are that the maximum threshold values δ of lithium-rich manganese-based lithium battery charge state is 80% of lithium-rich manganese-based lithium cell Full Charge Capacity to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car.
Detailed description of the invention five, present embodiment are that the minimum threshold values g of super capacitor state-of-charge is 50% of super capacitor fullcharging electricity condition to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car.
Detailed description of the invention six, present embodiment are that the maximum threshold values γ of super capacitor state-of-charge is 90% of super capacitor fullcharging electricity condition to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car.
Detailed description of the invention seven, present embodiment are to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car, in step 4 when the opening amount signal of Das Gaspedal is greater than 0, adopt and calculate car load driving power P according to the speed of Das Gaspedal aperture and electronlmobil epass through formula:
T qd=T qd maxα
p e=T qdω
In formula, T qdfor motor target drive torque, T qd maxfor motor maximum driving torque, α is Das Gaspedal aperture,
For motor actual speed and vehicle speed value.
Detailed description of the invention eight, present embodiment are that in step 12, entire car controller 4 calculates the B.P. P of battery-driven car to the further illustrating of energy distributing method of the utilization described in detailed description of the invention two based on the power distribution means of lithium-rich manganese-based lithium battery motor-car bpass through formula:
T qb=T qb maxf brk(β)
f b r k = 0 , &beta; < &beta; 2 &beta; - &beta; 1 &beta; 2 - &beta; 1 , &beta; 1 < &beta; < &beta; 2 1 , &beta; 2 < &beta; < &beta; 3
p b=T qbω
Realize, in formula, T qbfor motor target braking torque, T qbmaxfor motor maximum braking torque, be brake pedal aperture, 0< β 1≤ 0.05,0.05< β 2≤ 0.3,0.3< β 3≤ 1, P2 is automobile brake demand power, and ω is motor actual speed and vehicle speed value.
In present embodiment, β 1=0.5, β 2=0.05, β 3=1.

Claims (6)

1. the power distribution means based on lithium-rich manganese-based lithium battery motor-car, it comprises lithium-rich manganese-based lithium cell, it is characterized in that, it also comprises car speed sensor (1), accelerator pedal sensor (2), brake pedal sensor (3), entire car controller (4), battery management system (5), alarm module (6), DC/DC conv (7), super capacitor (8) and discharge device (11);
Car speed sensor (1) is for detecting the battery-driven car speed of a motor vehicle, accelerator pedal sensor (2) is for detecting Das Gaspedal aperture state, brake pedal sensor (3) is for detecting the aperture state of brake pedal, the vehicle speed signal input end of entire car controller (4) connects the signal output part of car speed sensor (1), the Das Gaspedal opening amount signal input end of entire car controller (4) connects the signal output part of accelerator pedal sensor (2), the brake pedal opening amount signal input end of entire car controller (4) connects the signal output part of brake pedal sensor (3), battery management system (5) is for the residual electric quantity of the residual electric quantity and super capacitor that detect lithium-rich manganese-based lithium cell,
The remaining power signal input end of entire car controller (4) connects the remaining power signal mouth of battery management system (5), battery management system (8) is for the dump energy of the dump energy and super capacitor that gather lithium cell, and the dump energy of lithium-rich manganese-based lithium cell gathered and the remaining power signal of super capacitor are sent to vehicle management system (10), the power supply signal I/O of actuator (9) connects the power supply signal input/output terminal of super capacitor, the power supply signal I/O of lithium-rich manganese-based lithium cell connects the power supply signal input/output terminal of DC/DC conv (7), the power supply signal I/O of DC/DC conv (7) connects the power supply input/output terminal of actuator (9), the cell output control signal mouth of entire car controller (4) connects the output power signal input part of DC/DC conv (7), the earial drainage control signal mouth of entire car controller (4) connects the earial drainage control signal input end of discharge device (11), discharge device (11) connects the current signal output end of DC/DC conv (7), the alarm signal output ends of entire car controller (4) connects the alarm control signal input end of alarm module (6), the drive singal input power signal output part of the drive motor (10) of the drive singal output end power signal input part connecting electric automobile of actuator (9).
2. utilize the energy distributing method of the power distribution means based on lithium-rich manganese-based lithium battery motor-car described in claim 1, it is characterized in that, the concrete steps of the method are:
Step one, employing car speed sensor (1) gather the speed of electronlmobil, accelerator pedal sensor (2) is adopted to gather the aperture of electric automobile pedal, adopt brake pedal sensor (3) to gather the aperture of brake pedal, adopt battery management system (5) to gather the remaining capacity SOC of lithium-rich manganese-based lithium cell simultaneously 1with the remaining capacity SOC of super capacitor 2;
Step 2, entire car controller (4) gather the remaining capacity SOC of lithium-rich manganese-based lithium cell by battery management system (5) 1judge the remaining capacity SOC of lithium-rich manganese-based battery 1whether be less than the minimum threshold values h of lithium-rich manganese-based lithium battery charge state; If so, then step 3 is performed; Otherwise execution step 4;
Step 3, entire car controller (4) send low electricity warning energizing signal to alarm module (6); Return step;
Step 4, judge whether the opening amount signal of the electric automobile pedal that accelerator pedal sensor (2) collects is greater than 0, when the opening amount signal of Das Gaspedal is greater than 0, adopts and calculate car load driving power P according to the speed of Das Gaspedal aperture and electronlmobil e, perform step 5, otherwise perform step 10;
Step 5, the driving power P judging required for electronlmobil ewhether be greater than the power maxim P of lithium-rich manganese-based lithium cell 2; If P ebe greater than P 2, then entire car controller (4) controls lithium-rich manganese-based lithium cell Maximum Power Output P by DC/DC conv (7) 2, meanwhile, adopt super capacitor simultaneously to actuator (9) horsepower output P b=P e-P 2; Return step one, if P ebe less than P 2, perform step 6;
Step 6, the driving power P judging required for electronlmobil ewhether be greater than the minimum value P of the power of lithium-rich manganese-based lithium cell 1if, P ebe less than P 1then perform step 7, otherwise, perform step 8;
Step 7, judge the remaining capacity SOC of super capacitor 2the no minimum threshold values g being less than super capacitor state-of-charge, if so, then performs step 8, otherwise, perform step 9;
Step 8, entire car controller (4) regulate the horsepower output of lithium-rich manganese-based lithium cell by DC/DC changer (7), make the horsepower output P of lithium-rich manganese-based lithium cell aequal the driving power P required for electronlmobil e, lithium-rich manganese-based lithium cell is separately for battery-driven car provides driving power;
Step 9, entire car controller (4) close the power stage of lithium-rich manganese-based lithium cell by DC/DC changer (7), super capacitor provides driving power for battery-driven car separately, super capacitor horsepower output P b=P e; Return step;
Step 10, judge whether the brake pedal aperture that brake pedal sensor (3) gathers is greater than 0, if not, then perform step 11; If so, then step 12 is performed;
The remaining capacity SOC of the super capacitor that step 11, entire car controller (4) are gathered by battery management system (5) 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then return step one; If be less than γ, entire car controller (4) by DC/DC changer (7) regulate the horsepower output of lithium-rich manganese-based lithium cell through actuator (9) for by actuator (8) be super capacitor (8) charging, charging terminate after return step one;
Step 12, entire car controller (4) calculate the B.P. P of battery-driven car b, the remaining capacity SOC of the super capacitor gathered by battery management system (5) 2judge the remaining capacity SOC of super capacitor 2whether be greater than the maximum threshold values γ of super capacitor state-of-charge; If SOC 2be greater than γ, then perform step 13; If SOC 2be less than γ, entire car controller (4) passes through (1) DC/DC changer (7) and regulates the horsepower output of lithium-rich manganese-based lithium cell to be super capacitor (8) charging through actuator (9), returns step one after charging terminates;
Step 13, judge the remaining capacity SOC of lithium-rich manganese-based lithium cell 1whether be greater than maximum threshold values δ, the SOC of lithium-rich manganese-based lithium battery charge state 1if be greater than δ, then carry out earial drainage by discharge device, return and perform step one, if SOC 1be less than δ, then reclaiming braking energy by actuator (9) through DC/DC conv (7) is lithium-rich manganese-based lithium cell charging, returns step one after charging terminates.
3. utilization according to claim 2 is based on the energy distributing method of the power distribution means of lithium-rich manganese-based lithium battery motor-car, it is characterized in that, the minimum threshold values h of lithium-rich manganese-based lithium battery charge state is 20% of lithium-rich manganese-based lithium cell Full Charge Capacity.
4. utilization according to claim 2 is based on the energy distributing method of the power distribution means of lithium-rich manganese-based lithium battery motor-car, it is characterized in that, the maximum threshold values δ of lithium-rich manganese-based lithium battery charge state is 80% of lithium-rich manganese-based lithium cell Full Charge Capacity.
5. utilization according to claim 2 is based on the energy distributing method of the power distribution means of lithium-rich manganese-based lithium battery motor-car, 50% of the minimum threshold values g super capacitor fullcharging electricity condition of super capacitor state-of-charge.
6. utilization according to claim 2 is based on the energy distributing method of the power distribution means of lithium-rich manganese-based lithium battery motor-car, and the maximum threshold values γ of super capacitor state-of-charge is 90% of super capacitor fullcharging electricity condition.
CN201510430804.XA 2015-07-21 2015-07-21 A kind of power distribution means and energy distributing method based on lithium-rich manganese-based lithium battery motor-car Expired - Fee Related CN104960431B (en)

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CN107031447A (en) * 2017-04-24 2017-08-11 清华大学 Stroke-increasing electric automobile energy storing structure and energy distributing method based on elastic energy storage
CN107139731A (en) * 2017-04-24 2017-09-08 哈尔滨理工大学 Electric automobile energy distribution method with elastic accumulator

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