CN107444131B - Brake energy recovering system, recovery method and the new-energy automobile of new-energy automobile - Google Patents
Brake energy recovering system, recovery method and the new-energy automobile of new-energy automobile Download PDFInfo
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- CN107444131B CN107444131B CN201710492803.7A CN201710492803A CN107444131B CN 107444131 B CN107444131 B CN 107444131B CN 201710492803 A CN201710492803 A CN 201710492803A CN 107444131 B CN107444131 B CN 107444131B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
Brake energy recovering system, recovery method and the new-energy automobile of present invention proposition new-energy automobile.System includes: wheel brake system, for vehicle energy to be converted to mechanical energy and the first thermal energy in wheel braking process；Mechanical energy recovery system, for determining that battery can absorb electric energy based on battery charge state, convertible electric energy is determined based on mechanical energy and energy conversion efficiency, and when battery can absorb electric energy more than or equal to convertible electric energy, the rechargeable electrical energy that energy value is equal to the convertible electric energy is converted mechanical energy into；When battery can absorb electric energy less than convertible electric energy, rechargeable electrical energy and the second thermal energy that energy value can absorb electric energy equal to the battery are converted mechanical energy into；Heat conducting device, for being heated to battery using the first thermal energy when battery temperature is lower than predetermined temperature threshold value.Embodiment of the present invention can use braking energy and supplement battery power, can also heat to battery, to improve Brake energy recovery rate.
Description
Technical field
The present invention relates to automobile technical fields, brake energy recovering system, recycling more particularly, to new-energy automobile
Method and new-energy automobile.
Background technique
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.New energy technology is considered
It is the important channel for solving energy crisis and environmental degradation.New-energy automobile can reduce consumption of petroleum, low pollution, low noise,
It is considered as the important channel for solving energy crisis and environmental degradation.Meeting vehicle dynamic quality requirement and continual mileage requirement
Under the premise of, new-energy automobile effectively improves fuel economy, reduces discharge, it is considered to be current energy conservation has with emission reduction
Imitate one of path.
Brake energy recovery is one of new-energy automobile important technology.On general internal-combustion engines vehicle, when vehicle deceleration, system
When dynamic, the kinergety of vehicle is changed into thermal energy by braking system, and discharges into atmosphere.On new-energy automobile, this
The kinergety that kind is wasted can be that electrical energy for storage turn in battery, and further by Brake energy recovery technical change
It is changed to driving energy.Brake energy recovery is different and different according to the working method of new-energy automobile.
In the prior art, in Brake energy recovery, charge and discharge control is carried out to battery by energy management system.Mesh
As previous using power-type accumulator (such as supercapacitor, fly wheel system) in high-power high-current, Split flow brake energy
Measure impact of the high current to power battery in removal process.However, this embodiment increases power management and flywheel management,
Management system becomes complicated, control strategy becomes complicated.
In addition, not accounting for the utilization to the energy to scatter and disappear with form of heat in the prior art, motor is not accounted for yet
Whether the electric energy of recycling conversion can be received completely by battery, therefore Brake energy recovery rate is not high.
Summary of the invention
The purpose of the present invention is to propose to the brake energy recovering system of new-energy automobile, recovery method and new-energy automobile,
To improve Brake energy recovery rate.
A kind of brake energy recovering system of new-energy automobile, comprising:
Wheel brake system, for vehicle energy to be converted to mechanical energy and the first thermal energy in wheel braking process；
Mechanical energy recovery system is based on mechanical energy and energy for determining that battery can absorb electric energy based on battery charge state
Amount transfer efficiency determines convertible electric energy, and when battery can absorb electric energy more than or equal to convertible electric energy, mechanical energy is converted
It is equal to the rechargeable electrical energy of the convertible electric energy for energy value；It, will be mechanical when battery can absorb electric energy less than convertible electric energy
Rechargeable electrical energy and the second thermal energy that energy value can absorb electric energy equal to the battery can be converted to；
Heat conducting device is used for when battery temperature is lower than predetermined temperature threshold value, using the first thermal energy to electricity
Pond heating.
In one embodiment:
Mechanical energy recovery system is also used to the second thermal energy being transmitted to heat conducting device；
Heat conducting device is also used to temperature after battery absorbs the first thermal energy lower than predetermined temperature threshold value
When, battery is heated using the second thermal energy.
In one embodiment:
The mechanical energy recovery system includes motor and electric machine controller.
In one embodiment:
Heat conducting device includes evaporation absorption piece, the circulation loop company of the evaporation absorption piece and binary mixture
It connects, the binary mixture includes the first fluid of refrigeration and the second fluid of absorbability, and the first fluid is in the evaporation
The evaporation section of absorption piece is evaporated, then in the binary for absorbing part and being rich in second fluid of the evaporation absorption piece
Mixture absorbs.
In one embodiment, the evaporation absorption piece includes:
At least two opposite reference surfaces define two regions to form evaporation component and absorption piece respectively；
The feedway of the first fluid, on the reference surface of the evaporation component；
The feedway of binary mixture rich in second fluid, on the reference surface of the absorption piece；
At least one region for wherein forming one of the evaporation component and the absorption piece is made of porous material.
In one embodiment:
Wheel brake system includes drum brake and disk brake.
In one embodiment:
Further include:
Battery management system, for providing the battery charge state and battery temperature to mechanical energy recovery system.
A kind of method for recovering brake energy of new-energy automobile, this method comprises:
Vehicle energy is converted into mechanical energy and the first thermal energy in wheel braking process；
It determines that battery can absorb electric energy based on battery charge state, is determined based on mechanical energy with energy conversion efficiency convertible
Electric energy, and when battery can absorb electric energy more than or equal to convertible electric energy, converting mechanical energy into energy value can turn equal to described
Change the rechargeable electrical energy of electric energy；When battery can absorb electric energy less than convertible electric energy, energy value is converted mechanical energy into equal to institute
State rechargeable electrical energy and the second thermal energy that battery can absorb electric energy；
When battery temperature is lower than predetermined temperature threshold value, battery is heated using the first thermal energy.
In one embodiment, this method further include:
When temperature after battery absorbs the first thermal energy is lower than predetermined temperature threshold value, using the second thermal energy to electricity
Pond heating.
A kind of new-energy automobile, the brake energy recovering system including new-energy automobile as above.
It can be seen from the above technical proposal that in embodiments of the present invention, system includes: wheel brake system, it is used for
Vehicle energy is converted into mechanical energy and the first thermal energy in wheel braking process；Mechanical energy recovery system, for being based on battery lotus
Electricity condition determines that battery can absorb electric energy, determines convertible electric energy based on mechanical energy and energy conversion efficiency, and when battery can be inhaled
When receiving electric energy more than or equal to convertible electric energy, the rechargeable electrical energy that energy value is equal to the convertible electric energy is converted mechanical energy into；
When battery can absorb electric energy less than convertible electric energy, energy value is converted mechanical energy into equal to the battery and can absorb electric energy
Rechargeable electrical energy and the second thermal energy；Heat conducting device, for utilizing the when battery temperature is lower than predetermined temperature threshold value
One thermal energy heats battery.Battery power is supplemented it can be seen that embodiment of the present invention can use braking energy, is mentioned
High Brake energy recovery rate.
In addition, embodiment of the present invention supplements the electric energy of battery, the service life of battery is extended.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the schematic diagram controlled according to new-energy automobile Brake energy recovery of the present invention.
Fig. 2 is the structure chart according to new-energy automobile brake energy recovering system of the present invention.
Fig. 3 is the schematic diagram that heat transfer is realized according to new-energy automobile brake energy recovering system of the present invention.
Fig. 4 is the flow chart according to new-energy automobile method for recovering brake energy of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
Fig. 1 is the schematic diagram controlled according to new-energy automobile Brake energy recovery of the present invention.As shown in Figure 1, new energy vapour
Vehicle Brake energy recovery control process includes:
(1) brake pedal, brake effect, vehicle energy are converted into mechanical energy and thermal energy；
(2) mechanical energy is converted into electric energy E by motor, can be transformed according to motor and the judgement of electric machine controller parameter
Electric energy E1, and judge that battery can absorb electric energy E2 according to battery status；If E2 > E1, motor fully absorbs mechanical energy and turns
Change；If E2 < E1, a part of mechanical energy are converted into thermal energy and are utilized；
(3) utilization is collected by lost a part of thermal energy a part of vehicle energy conversion, the thermal energy being collected is according to electricity
Pond state has following application:
(a) battery temperature is low, then is heated by heat transfer unit (HTU) to battery；
(b) battery capacity is low, then thermal energy is converted into electric energy by energy conversion device, charges the battery；
It (c) is preferably battery heating when battery temperature and capacity are in badness simultaneously；
(d) battery temperature height then passes through heat conducting device and rejects heat in air.
In Fig. 1, vehicle energy management system and entire car controller (VCU): battery management system (BMS) acquisition are not shown
The parameters such as battery status parameter, including electric current, voltage, temperature, capacity；Vehicle energy management system feeds back judgement electricity according to BMS
Machine needs the mechanical energy absorbed；The mechanical energy not absorbed by motor is entered in heat collector by VCU control, and according to BMS before
Feedback judges to heat battery or charge.
Based on structure shown in Fig. 1, Fig. 2 is the structure chart according to new-energy automobile brake energy recovering system of the present invention.
As shown in Fig. 2, the brake energy recovering system of new-energy automobile, comprising:
Wheel brake system 201, for vehicle energy to be converted to mechanical energy and the first thermal energy in wheel braking process；
Mechanical energy recovery system 202, for determining that battery can absorb electric energy based on battery charge state, based on mechanical energy with
Energy conversion efficiency determines convertible electric energy, and when battery can absorb electric energy more than or equal to convertible electric energy, mechanical energy is turned
It is changed to the rechargeable electrical energy that energy value is equal to the convertible electric energy；When battery can absorb electric energy less than convertible electric energy, by machine
Tool can be converted to the rechargeable electrical energy and the second thermal energy that energy value can absorb electric energy equal to the battery；
Heat transfer 203 is used for when battery temperature is lower than predetermined temperature threshold value, using the first thermal energy to battery
Heating.
Brake energy recovering system can also include: battery management system, for providing battery to mechanical energy recovery system
State-of-charge and battery temperature.
Wherein, mechanical energy recovery system has scheduled mechanical energy and energy conversion efficiency.Mechanical energy recovery system 202 can
To calculate the convertible electric energy converted out by mechanical energy based on mechanical energy and energy conversion efficiency.
In one embodiment:
Mechanical energy recovery system 202 is also used to the second thermal energy being transmitted to heat conducting device 203；
Heat conducting device 203 is also used to temperature after battery absorbs the first thermal energy lower than predetermined temperature thresholding
When value, battery is heated using the second thermal energy.
Preferably, mechanical energy recovery system includes motor and electric machine controller.
In one embodiment: heat conducting device 203 includes evaporation absorption piece, wherein evaporation absorption piece and binary
The circulation loop of mixture connects, and binary mixture includes the first fluid of refrigeration and the second fluid of absorbability, first fluid
It is evaporated in the evaporation section of the evaporation absorption piece, is then rich in second fluid in the absorption part of evaporation absorption piece
Binary mixture absorb.
In one embodiment, evaporation absorption piece includes:
At least two opposite reference surfaces define two regions to form evaporation component and absorption piece respectively；
The feedway of the first fluid, on the reference surface of the evaporation component；
The feedway of binary mixture rich in second fluid, on the reference surface of the absorption piece；
At least one region for wherein forming one of the evaporation component and the absorption piece is made of porous material.
Preferably, wheel brake system includes drum brake and disk brake.Drum brake is according to brake-shoe
The difference of opening apparatus form can be divided into cylinder type brake and cam type brake.Cylinder type brake is with hydraulic braking wheel cylinder
As brake-shoe actuating device, mostly brake fluid system is used；Cam type brake is using cam as actuating device, mostly
Pneumatic braking system is used.Disk brake has hydraulic, and by hydraulic control, main parts size has brake disc, wheel cylinder, system
Dynamic pincers, oil pipe etc..It is disk brake rapid heat dissipation, light-weight, simple structure, easy to adjust.Especially high load when heat-resisting quantity
Can be good, braking effect is stablized, and is not afraid of muddy water invasion, the disc type used in winter with severe road conditions down train, many cars
Brake has plane formula brake disc, perforating type brake disc and scribing line formula brake disc, wherein the braking effect of scribing line formula brake disc
It is relatively good with ventilation and heat ability.
Battery power is supplemented it can be seen that embodiment of the present invention can use braking energy, improves Brake Energy
Measure the rate of recovery.
In addition, embodiment of the present invention supplements the electric energy of battery, the service life of battery is extended.
The above demonstration describes the exemplary embodiment of heat conducting device and wheel brake system, those skilled in the art
It is to be appreciated that this description is only exemplary, it is not intended to limit the present invention the protection scope of embodiment.
Fig. 3 is the schematic diagram that heat transfer is realized according to new-energy automobile brake energy recovering system of the present invention.It is shown in Fig. 3
Heat transfer can be based on new-energy automobile brake energy recovering system shown in Fig. 2.
In Fig. 3, new-energy automobile Brake energy recovery control process includes:
(1) brake pedal, brake effect, vehicle energy are converted into mechanical energy and the first thermal energy；
(2) mechanical energy is converted into electric energy E by motor, can be transformed according to motor and the judgement of electric machine controller parameter
Electric energy E1, and judge that battery can absorb electric energy E2 according to battery status；If E2 > E1, motor fully absorbs mechanical energy and turns
Change；If E2 < E1, a part of mechanical energy are converted into the second thermal energy and are utilized；
A part of (3) first thermal energy is scattered and disappeared, and another part is collected utilization, and the thermal energy being collected has according to battery status
It applies: when battery temperature is lower than predetermined temperature threshold value, battery being heated using the first thermal energy below；
(4) when the temperature after battery absorbs the first thermal energy still is below predetermined temperature threshold value, second is utilized
Thermal energy heats battery.
In Fig. 3, vehicle energy management system and VCU:BMS acquisition battery status parameter, including electric current, electricity are not shown
The parameters such as pressure, temperature, capacity；Vehicle energy management system judges the mechanical energy that motor needs to absorb according to BMS feedback；It is not electric
The mechanical energy that machine absorbs is entered in heat collector by VCU control, and judges to charge to battery according to the feedback of BMS before.
Based on foregoing description, embodiment of the present invention also proposed a kind of new-energy automobile method for recovering brake energy.
Fig. 4 is the flow chart according to new-energy automobile method for recovering brake energy of the present invention.
As shown in figure 4, this method comprises:
Step 401: vehicle energy being converted into mechanical energy and the first thermal energy in wheel braking process.
Step 402: determine that battery can absorb electric energy based on battery charge state, it is true based on mechanical energy and energy conversion efficiency
Fixed convertible electric energy, and when battery can absorb electric energy more than or equal to convertible electric energy, it converts mechanical energy into energy value and is equal to
The rechargeable electrical energy of the convertible electric energy；When battery can absorb electric energy less than convertible electric energy, energy is converted mechanical energy into
Value is equal to the rechargeable electrical energy and the second thermal energy that the battery can absorb electric energy.
Step 403: when battery temperature is lower than predetermined temperature threshold value, battery being heated using the first thermal energy.
In one embodiment, this method further include:
When temperature after battery absorbs the first thermal energy still is below predetermined temperature threshold value, the second thermal energy is utilized
Battery is heated.
Wherein, battery is heated using the first thermal energy and/or the second thermal energy by heat conducting device.Heat conducting device includes
Absorption piece is evaporated, the circulation loop connection of the evaporation absorption piece and binary mixture, the binary mixture includes system
The second fluid of cold first fluid and absorbability, the first fluid are steamed in the evaporation section of the evaporation absorption piece
Then hair is absorbed in the part that absorbs of the evaporation absorption piece by the binary mixture rich in second fluid.
In one embodiment, evaporation absorption piece includes: at least two opposite reference surfaces, defines to be formed respectively
Two regions of evaporation component and absorption piece；The feedway of the first fluid, in the reference surface of the evaporation component
On；The feedway of binary mixture rich in second fluid, on the reference surface of the absorption piece；Described in wherein being formed
At least one region of one of evaporation component and the absorption piece is made of porous material.
Can by embodiment of the present invention proposes the method for recovering brake energy of new-energy automobile be applied to various types
New-energy automobile in, including be not limited to: pure electric automobile, hybrid vehicle or fuel cell car, etc..
In conclusion in embodiments of the present invention, system includes: wheel brake system, in wheel braking process
Vehicle energy is converted into mechanical energy and the first thermal energy；Mechanical energy recovery system, for determining battery based on battery charge state
Absorbable electric energy determines convertible electric energy based on mechanical energy and energy conversion efficiency, and is more than or equal to when battery can absorb electric energy
When convertible electric energy, the rechargeable electrical energy that energy value is equal to the convertible electric energy is converted mechanical energy into；When the absorbable electricity of battery
When can be less than convertible electric energy, the rechargeable electrical energy and second that energy value can absorb electric energy equal to the battery is converted mechanical energy into
Thermal energy；Heat conducting device, for being added to battery using the first thermal energy when battery temperature is lower than predetermined temperature threshold value
Heat.Battery power is supplemented it can be seen that embodiment of the present invention can use braking energy, improves Brake energy recovery
Rate.
In addition, embodiment of the present invention supplements the electric energy of battery, the service life of battery is extended.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of brake energy recovering system of new-energy automobile characterized by comprising
Wheel brake system, for vehicle energy to be converted to mechanical energy and the first thermal energy in wheel braking process；
Mechanical energy recovery system is turned for determining that battery can absorb electric energy based on battery charge state based on mechanical energy and energy
It changes efficiency and determines convertible electric energy, and when battery can absorb electric energy more than or equal to convertible electric energy, convert mechanical energy into energy
Magnitude is equal to the rechargeable electrical energy of the convertible electric energy；When battery can absorb electric energy less than convertible electric energy, mechanical energy is turned
It is changed to rechargeable electrical energy and the second thermal energy that energy value can absorb electric energy equal to the battery；
Heat conducting device, for being added to battery using the first thermal energy when battery temperature is lower than predetermined temperature threshold value
Heat；
Wherein mechanical energy recovery system is also used to the second thermal energy being transmitted to heat conducting device；Heat conducting device is also used to when electricity
When temperature after the first thermal energy of pond absorption is lower than predetermined temperature threshold value, battery is heated using the second thermal energy.
2. the brake energy recovering system of new-energy automobile according to claim 1, which is characterized in that the mechanical energy is returned
Receipts system includes motor and electric machine controller.
3. the brake energy recovering system of new-energy automobile according to claim 1, which is characterized in that
Heat conducting device includes evaporation absorption piece, the circulation loop connection of the evaporation absorption piece and binary mixture, institute
Stating binary mixture includes the first fluid of refrigeration and the second fluid of absorbability, and the first fluid is in the evaporation absorption portion
The evaporation section of part is evaporated, then in the binary mixture for absorbing part and being rich in second fluid of the evaporation absorption piece
It absorbs.
4. the brake energy recovering system of new-energy automobile according to claim 3, which is characterized in that
The evaporation absorption piece includes:
At least two opposite reference surfaces define two regions to form evaporation component and absorption piece respectively；
The feedway of the first fluid, on the reference surface of the evaporation component；
The feedway of binary mixture rich in second fluid, on the reference surface of the absorption piece；
At least one region for wherein forming one of the evaporation component and the absorption piece is made of porous material.
5. the brake energy recovering system of new-energy automobile according to claim 1, which is characterized in that wheel brake system
Including drum brake and disk brake.
6. the brake energy recovering system of new-energy automobile according to claim 1, which is characterized in that further include:
Battery management system, for providing the battery charge state and battery temperature to mechanical energy recovery system.
7. a kind of method for recovering brake energy of new-energy automobile, which is characterized in that this method comprises:
Vehicle energy is converted into mechanical energy and the first thermal energy in wheel braking process；
It determines that battery can absorb electric energy based on battery charge state, convertible electricity is determined based on mechanical energy and energy conversion efficiency
Can, and when battery can absorb electric energy more than or equal to convertible electric energy, energy value is converted mechanical energy into equal to described convertible
The rechargeable electrical energy of electric energy；When battery can absorb electric energy less than convertible electric energy, energy value is converted mechanical energy into equal to described
Battery can absorb the rechargeable electrical energy and the second thermal energy of electric energy；
When battery temperature is lower than predetermined temperature threshold value, battery is heated using the first thermal energy；This method further include:
When temperature after battery absorbs the first thermal energy is lower than predetermined temperature threshold value, battery is added using the second thermal energy
Heat.
8. a kind of new-energy automobile, which is characterized in that the Brake energy recovery system including new-energy automobile as claimed in claim 1
System.
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| CN201710492803.7A CN107444131B (en) | 2017-06-26 | 2017-06-26 | Brake energy recovering system, recovery method and the new-energy automobile of new-energy automobile |
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| CN201710492803.7A CN107444131B (en) | 2017-06-26 | 2017-06-26 | Brake energy recovering system, recovery method and the new-energy automobile of new-energy automobile |
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| CN107444131B true CN107444131B (en) | 2019-08-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2416631B (en) * | 2004-07-23 | 2007-12-12 | Ford Motor Co | Energy management system and method |
| CN101249802B (en) * | 2008-03-27 | 2010-08-18 | 上海工程技术大学 | Urban rail traffic vehicle braking energy recovery system |
| CN203766543U (en) * | 2014-03-25 | 2014-08-13 | 东风汽车公司 | Power battery heating system for increasing electric vehicle low temperature cruising distance |
| CN104129309B (en) * | 2014-07-25 | 2017-05-31 | 宁波吉利汽车研究开发有限公司 | Brake power recovering device and method for recovering brake energy |
| CN105620296B (en) * | 2016-01-28 | 2018-09-18 | 北京航天发射技术研究所 | Brake of electric vehicle Poewr control method, apparatus and system |
| CN205523724U (en) * | 2016-04-19 | 2016-08-31 | 江苏兴云新能源有限公司 | Electric automobile braking energy retrieves and is used for battery heating system in advance |
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