CN108528454A - Method for recovering brake energy, brake energy recovering system and vehicle - Google Patents
Method for recovering brake energy, brake energy recovering system and vehicle Download PDFInfo
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- CN108528454A CN108528454A CN201810292527.4A CN201810292527A CN108528454A CN 108528454 A CN108528454 A CN 108528454A CN 201810292527 A CN201810292527 A CN 201810292527A CN 108528454 A CN108528454 A CN 108528454A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
- B60W20/14—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion in conjunction with braking regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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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
- Y02T10/62—Hybrid vehicles
Abstract
The present invention provides a kind of method for recovering brake energy, system and vehicle based on adaptive cruise control system, is related to field of automobile control.This method includes：Step S1 when the torque that cruises is less than predetermined threshold value, while obtaining the total braking moment and the producible energy regenerating torque of energy-recuperation system of vehicle needs in the case where vehicle is in adaptive cruise state；Total braking moment and energy regenerating torque are compared step S2；Step S3 is allocated total braking moment according to comparison result, wherein if total braking moment is less than energy regenerating torque, is braked using energy-recuperation system；If total braking moment is more than energy regenerating torque, the braking moment exceeded is generated by braking system.Braking energy effectively can also be recycled and stored by energy-recuperation system when vehicle be under adaptive cruise state by the method for recovering brake energy of the present invention, extend vehicle course continuation mileage under the operating mode, raising vehicle economy.
Description
Technical field
The present invention relates to field of automobile control, more particularly to a kind of braking energy based on adaptive cruise control system
Recovery method, brake energy recovering system and vehicle.
Background technology
Develop in new-energy automobile auto industry Future Development and realizes one of the main path of target for energy-saving and emission-reduction, Brake Energy
Amount recycling is one of important power-saving technology of modern new-energy automobile.It is this to be wasted on electric vehicle and hybrid electric vehicle
The kinergety fallen can be electrical energy for storage by Brake energy recovery technical change in accumulator, and be further converted to
Driving energy.In the prior art, Brake energy recovery technology is that the braking mode of vehicle is judged according to brake pedal signal, to
Judge whether to need to carry out energy regenerating.
Adaptive cruise control system is a kind of intelligentized automatic control system, in vehicle travel process, passes through association
Shunt away from wheel speed so that vehicle and front vehicles remain safe distance.To ensure vehicle in deceleration or with the mistake of vehicle start and stop
Comfort in journey can generally sacrifice Brake energy recovery of the vehicle under the operating mode, by with braking system and engine
Control system coordination is so that wheel is suitably braked, to achieve the purpose that automatic reduction of speed.Because vehicle deceleration produces during this
Raw energy is lost directly in the form of heat.
Invention content
Adaptive cruise control system is a kind of intelligentized automatic control system, it is in the cruise control probably already existed
It is developed on the basis of technology.In vehicle travel process, the spacing sensor (radar) for being mounted on front part of vehicle continues
Vehicle road ahead is scanned, while wheel speed sensors acquire speed signal.When too small with the distance between front truck, ACC controls
Unit can by with anti-blocking brake system, engine control system coordination, so that wheel is suitably braked, and make engine
Output power decline so that vehicle and front vehicles remain safe distance.Braking energy feedback is when vehicle is being braked
When, motor becomes engine from motor, is used for generating electricity to Motor torque according to torque allocation strategy by entire car controller, vehicle
A part of kinetic energy be converted into electric energy there are in high-tension battery.
In the prior art, it is to calculate energy regenerating essential condition by the aperture of accelerator open degree and brake pedal.Adaptively
Under cruising condition, throttle or brake pedal need not be trampled, while to ensure the comfort demand of retarding braking, sacrificing the operating mode
Under recyclable braking energy, cause in the case where opening adaptive cruise and being not turned on adaptive cruise driving mode, the pure electricity of vehicle
Course continuation mileage and vehicle Energy Consumption Economy are inconsistent.
It is an object of the present invention to provide a kind of method for recovering brake energy based on adaptive cruise control system,
To solve, electric vehicle or hybrid vehicle cannot carry out energy regenerating when in adaptive cruise operating mode in the prior art
Problem.
A further object of the present invention is to vehicles to be made under adaptive cruise operating mode, and braking system is needed to carry out
When braking, braking system can intervene at the first time, and avoiding leading to the problem of causes slowing effect unconspicuous.
On the one hand, the present invention provides a kind of method for recovering brake energies, including：
Step S1 when the torque that cruises is less than predetermined threshold value, while obtaining institute in the case where vehicle is in adaptive cruise state
State the total braking moment and the producible energy regenerating torque of energy-recuperation system of vehicle needs；
Total braking moment and the energy regenerating torque are compared step S2；
Step S3 is allocated total braking moment according to comparison result, wherein if total braking moment is small
It in the energy regenerating torque, is then braked using the energy-recuperation system, the vehicle is made to carry out energy regenerating；If institute
It states total braking moment and is more than the energy regenerating torque, then the braking moment exceeded is generated by the braking system.
Optionally, in the step S3, when total braking moment is more than the energy regenerating torque, the energy
Recovery system and the braking system start simultaneously.
Optionally, between the step S1 and the step S2, further include：
It is urgent to judge that the vehicle needs according to acceleration needed for the size of total braking moment and vehicle by step S101
Braking or gentle braking；
If the vehicle needs gentle braking, the step S2 is executed；
Emergency braking is needed in the vehicle, then total braking moment is all generated by the braking system.
Optionally, in the step S3, during the vehicle carries out energy regenerating, when body electronics stability series
When the system activation of one or more of system, electronic braking force distribution and anti-lock braking system, stop the energy regenerating system
The work of system.
Optionally, in the step S1, the maximum allowable energy regenerating torque and target energy for choosing the vehicle are returned
The smaller value in torque the two is received as the energy regenerating torque.
Optionally, the maximum allowable energy regenerating torque can use negative torque according to motor with negative torque value, gearbox
Value and high voltage power battery can be calculated with peak value charging ability.
Optionally, the target energy recycling torque is calculated according to master cylinder pressure, brake switch aperture and speed.
Optionally, the predetermined threshold value is 0.
On the other hand, the present invention also provides a kind of brake energy recovering systems, including：
Torque acquiring unit is used in the case where vehicle is in adaptive cruise state, when the torque that cruises is less than predetermined threshold value,
The total braking moment and the producible energy regenerating torque of energy-recuperation system that the vehicle needs are obtained simultaneously；
Torque comparing unit, for total braking moment and the energy regenerating torque to be compared；
Control unit, for according to comparison result, being allocated to total braking moment, wherein if total braking
Torque is less than the energy regenerating torque, then is braked using the energy-recuperation system, so that the vehicle is carried out energy and returns
It receives；If total braking moment is more than the energy regenerating torque, the braking moment exceeded is generated by the braking system.
Another aspect, the present invention also provides a kind of vehicle, the vehicle includes above-mentioned brake energy recovering system.
The method for recovering brake energy and system of the present invention works as cruise under being in adaptive cruise state in vehicle
When torque is less than predetermined threshold value, braking energy is effectively recycled and stored by energy-recuperation system, extends the vehicle at this
Course continuation mileage under operating mode improves vehicle economy.
Further, method for recovering brake energy of the invention and system can be patrolled when the torque that cruises is less than 0
Boat braking system starts energy-recuperation system and braking system simultaneously, so that braking system is intervened at the first time, with energy regenerating
System is carried out at the same time braking, to improve vehicle comfort.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic flow chart of method for recovering brake energy according to an embodiment of the invention；
Fig. 2 is the schematic flow chart of method for recovering brake energy in accordance with another embodiment of the present invention.
Specific implementation mode
Fig. 1 is the schematic flow chart of method for recovering brake energy according to an embodiment of the invention.Fig. 2 is according to this
Invent the schematic flow chart of the method for recovering brake energy of another embodiment.As depicted in figs. 1 and 2, a kind of based on adaptive
The method for recovering brake energy of cruise control system is answered, including：
Step S1 when the torque that cruises is less than predetermined threshold value, while obtaining institute in the case where vehicle is in adaptive cruise state
State the total braking moment and the producible energy regenerating torque of energy-recuperation system of vehicle needs；
Specifically, when vehicle is under adaptive cruise state, system works as cruise by the moment of torsion control car speed that cruises
When torque is less than a certain predetermined threshold value, illustrate that vehicle needs to slow down or in moderating process, vehicle is braked at this time,
Total braking moment of vehicle needs is calculated according to preceding vehicle speed and from vehicle speed.Above-mentioned predetermined threshold value can be 0, can also be
Meet the minus arbitrary value of vehicle condition.The introducing of cruise torque, can not have the case where signal generation in brake pedal
Under, realize energy regenerating.Vehicle control system calculate vehicle needs total braking moment simultaneously, also to calculate the energy of vehicle
Measure the producible energy regenerating torque of recovery system, it has been determined that whether can carry out energy regenerating.
In step sl, choose in the maximum allowable energy regenerating torque and target energy recycling both torque of vehicle compared with
Small value is used as energy regenerating torque.Maximum allowable energy regenerating torque can be can be used negative according to motor with negative torque value, gearbox
Torque value and high voltage power battery can be calculated with peak value charging ability, can also be according to the control node of each controller of vehicle
It is calculated after comprehensive descision.Target energy recycling torque is calculated according to master cylinder pressure, brake switch aperture and speed.Most
It is big that energy regenerating torque is allowed to be to recycle a limitation range of torque as succeeding target if do not calculated to will appear
Moment recycling torque can be more than the maximum charging ability of power battery, overcharge battery can be damaged, or to gearbox/
The moment of torsion control no to scale of motor can damage entire dynamical system.Target energy recycles torque as energy regenerating
Basis.Therefore, in energy recovery process, the smaller value in the two is chosen as energy regenerating torque, to ensure in vehicle
Safe energy regenerating is realized in braking process.
Total braking moment and energy regenerating torque are compared step S2.Specifically, it is calculated in vehicle control system
After total braking moment and energy regenerating torque, the two is compared vehicle control system.
Step S3 is allocated total braking moment according to comparison result, wherein if total braking moment is returned less than energy
Torque is received, then is braked using energy-recuperation system, vehicle is made to carry out energy regenerating, braking system is not involved in work；If total
Braking moment is more than energy regenerating torque, then the part beyond energy regenerating torque is generated by braking system in total braking moment,
The two cooperates, and vehicle braking is realized while carrying out energy regenerating.
The method for recovering brake energy of the present invention, when vehicle is under adaptive cruise state, with the numerical value for the torque that cruises
As trigger condition, to realize energy regenerating.When the torque that cruises is less than predetermined threshold value, energy-recuperation system starts, by vehicle
The braking energy generated in braking process is effectively recycled and is stored, and is extended course continuation mileage of the vehicle under the operating mode, is carried
High vehicle economy.
Vehicle carries out Brake energy recovery under adaptive cruise operating mode, and fairly simple method is to use motor first
Energy regenerating is carried out, when the braking moment for judging that motor generates cannot meet total braking moment, at this point, braking system is situated between again
Enter, has the regular hour poor between the two.Brake energy recovery is carried out under adaptive cruise operating mode using the above method, is controlled
System strategy is fairly simple.But since the intervention moment of braking system is later, after motor braking, slowing effect can be led to
There is " nodding " phenomenon after braking system intervention in unobvious.
In order to avoid the unconspicuous generation of slowing effect, in the step S3 of method for recovering brake energy of the invention, when total
When braking moment is more than energy regenerating torque, energy-recuperation system and braking system start simultaneously.Specifically, vehicle control system
After distributing braking moment, energy-recuperation system and braking system start simultaneously, to generate braking moment, to vehicle system
It is dynamic, so that vehicle is gently slowed down, to ensure the comfort of retarding braking.
In another embodiment of the invention, to cope with the generation of emergency situations, between step S1 and step S2, increase
Step S101 needs emergency braking or gentle braking according to acceleration judgement vehicle needed for the size of total braking moment and vehicle.
When car speed is very fast, when front truck is brought to a halt, at this point, this vehicle needs bring to a halt and collide to avoid with front truck, such situation
Belong to emergency braking.When the speed of front truck slowly declines, in order to make Ben Che keep certain distance, the speed of this vehicle to need with front truck
Slowly decline, then such situation belongs to gentle braking.If vehicle needs gentle braking, step S2 is executed；It is needed in vehicle urgent
Braking, then total braking moment is all generated by braking system, and energy-recuperation system is not involved in work.The emergency situations can be
Emergency brake, vehicle slip or vehicle collide.The addition of the step can effectively avoid vehicle when emergency occurs,
Energy-recuperation system and braking system work at the same time and cause unexpected result, ensure driving safety.
In yet another embodiment of the present invention, energy regenerating is underway, when emergency occurs suddenly for vehicle, such as
Emergency braking, break away etc., ESC (electronic stabilizing control system) can carry out torque intervention.And at this point, the two moment of torsion control superposition one
It rises, is easy to cause motor and acts on locking on wheel, cause braking effect bad.In addition, if EBD (electronic braking force distribution
System) activation when, energy regenerating does not exit, can cause on the braking-force ratio rear axle distributed on front axle big, and vehicle-state shows just
The phenomenon that " nodding " when being emergency braking becomes apparent.
To solve the above problems, in the method for recovering brake energy of an embodiment, when vehicle carries out energy regenerating, work as vehicle
When one or more of body electric stabilizing system, electronic brake force distribution system and anti-lock braking system system activates, energy
Amount recovery system is stopped, and improves the safety of vehicle.Specifically, VCU (entire car controller) receives the signal of vehicle,
VCU receives " the ESC system state " that ESC is sent, including ABS (anti-blocking brake system)/EBD/ESP (body electronics stability series
System) etc. be likely to affect vehicle traveling signal and these signals effective marker position signal, as VCU arbitrate energy
Measure the condition of recycling, if ESC system state meets the condition of energy regenerating, the equal un-activation such as ABS/EBD/ESP, then VCU into
The normal energy regenerating of row；If ESC system state is unsatisfactory for the condition of energy regenerating, the either conditions such as ABS/EBD/ESP swash
Living, then VCU exits energy regenerating, temporarily without energy regenerating.
By the upgrading of system software, " parking/starting " function may be implemented in adaptive cruise control system, is existed with reply
In city when driving frequently parking and starting situation.The method for recovering brake energy of the present invention can be with parking/starting function
In conjunction under adaptive cruise operating mode, vehicle being made to carry out Brake energy recovery under low speed operating mode, improved under the operating mode
Course continuation mileage.
The present invention also provides a kind of brake energy recovering system using above-mentioned method for recovering brake energy, system includes
Torque acquiring unit, torque comparing unit and control unit.Torque acquiring unit is used to be in adaptive cruise state in vehicle
Under, when the torque that cruises is less than predetermined threshold value, while obtaining total braking moment that the vehicle needs and energy-recuperation system can
The energy regenerating torque of generation.Torque comparing unit is for total braking moment and energy regenerating torque to be compared.Control is single
Member is for according to comparison result, being allocated total braking moment, wherein if total braking moment is less than energy regenerating torque,
It is braked using energy-recuperation system, vehicle is made to carry out energy regenerating；If total braking moment is more than energy regenerating torque, institute
The braking moment exceeded is generated by braking system.
The present invention also provides a kind of vehicle, the vehicle includes above-mentioned brake energy recovering system.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (10)
1. a kind of method for recovering brake energy, which is characterized in that including：
Step S1 when the torque that cruises is less than predetermined threshold value, while obtaining the vehicle in the case where vehicle is in adaptive cruise state
Need total braking moment and the producible energy regenerating torque of energy-recuperation system；
Total braking moment and the energy regenerating torque are compared step S2；
Step S3 is allocated total braking moment according to comparison result, wherein if total braking moment is less than institute
Energy regenerating torque is stated, then is braked using the energy-recuperation system, the vehicle is made to carry out energy regenerating；If described total
Braking moment is more than the energy regenerating torque, then the braking moment exceeded is generated by the braking system.
2. method for recovering brake energy according to claim 1, which is characterized in that
In the step S3, when total braking moment be more than the energy regenerating torque when, the energy-recuperation system and
The braking system starts simultaneously.
3. method for recovering brake energy according to claim 1, which is characterized in that in the step S1 and the step S2
Between, further include：
Step S101 judges that the vehicle needs emergency braking according to acceleration needed for the size of total braking moment and vehicle
Or gentle braking；
If the vehicle needs gentle braking, the step S2 is executed；
Emergency braking is needed in the vehicle, then total braking moment is all generated by the braking system.
4. method for recovering brake energy according to claim 1, which is characterized in that
In the step S3, during the vehicle carries out energy regenerating, when body electronics systems stabilisation, deceleration of electrons
When power is distributed and one or more of anti-lock braking system system activates, stop the work of the energy-recuperation system.
5. method for recovering brake energy according to claim 1, which is characterized in that
In the step S1, it chooses in both maximum allowable energy regenerating torque and target energy recycling torque of the vehicle
Smaller value as the energy regenerating torque.
6. method for recovering brake energy according to claim 5, which is characterized in that
The maximum allowable energy regenerating torque can use negative torque value and high voltage power according to motor with negative torque value, gearbox
Battery can be calculated with peak value charging ability.
7. method for recovering brake energy according to claim 5, which is characterized in that
The target energy recycling torque is calculated according to master cylinder pressure, brake switch aperture and speed.
8. method for recovering brake energy according to claim 1, which is characterized in that
The predetermined threshold value is 0.
9. a kind of brake energy recovering system, which is characterized in that including：
Torque acquiring unit is used in the case where vehicle is in adaptive cruise state, when the torque that cruises is less than predetermined threshold value, simultaneously
Obtain the total braking moment and the producible energy regenerating torque of energy-recuperation system that the vehicle needs；
Torque comparing unit, for total braking moment and the energy regenerating torque to be compared；
Control unit, for according to comparison result, being allocated to total braking moment, wherein if total braking moment
It less than the energy regenerating torque, is then braked using the energy-recuperation system, the vehicle is made to carry out energy regenerating；If
Total braking moment is more than the energy regenerating torque, then the braking moment exceeded is generated by the braking system.
10. a kind of vehicle, which is characterized in that the vehicle includes brake energy recovering system as claimed in claim 9.
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| CN201810292527.4A CN108528454A (en) | 2018-03-30 | 2018-03-30 | Method for recovering brake energy, brake energy recovering system and vehicle |
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| CN201810292527.4A CN108528454A (en) | 2018-03-30 | 2018-03-30 | Method for recovering brake energy, brake energy recovering system and vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110040000A (en) * | 2019-04-25 | 2019-07-23 | 浙江吉利控股集团有限公司 | Method for recovering brake energy, brake energy recovering system and vehicle |
| CN110696632A (en) * | 2019-10-08 | 2020-01-17 | 浙江吉利汽车研究院有限公司 | Automobile brake feedback method and device and vehicle |
| CN110979325A (en) * | 2019-12-31 | 2020-04-10 | 浙江合众新能源汽车有限公司 | Adaptive cruise adjustment method based on light intensity |
| CN111942353A (en) * | 2020-07-22 | 2020-11-17 | 东风汽车集团有限公司 | Emergency braking control method for pure electric vehicle, vehicle control unit and control device |
| CN112428828A (en) * | 2019-08-26 | 2021-03-02 | 上海汽车集团股份有限公司 | Kinetic energy recovery method and system |
| CN112441000A (en) * | 2019-08-16 | 2021-03-05 | 华为技术有限公司 | Vehicle braking control method and device |
| CN113400944A (en) * | 2021-07-13 | 2021-09-17 | 奇瑞新能源汽车股份有限公司 | Brake recovery method and device for autonomous vehicle, vehicle and storage medium |
| CN113954645A (en) * | 2021-11-12 | 2022-01-21 | 合众新能源汽车有限公司 | Adaptive cruise control feedback brake torque monitoring method for electric automobile |
| CN114228712A (en) * | 2022-01-21 | 2022-03-25 | 一汽解放汽车有限公司 | Braking negative torque determination method and device in vehicle cruising, vehicle and storage medium |
| CN116101071A (en) * | 2022-12-28 | 2023-05-12 | 小米汽车科技有限公司 | Vehicle braking method and device, vehicle and medium |
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| CN110979325A (en) * | 2019-12-31 | 2020-04-10 | 浙江合众新能源汽车有限公司 | Adaptive cruise adjustment method based on light intensity |
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| CN113400944A (en) * | 2021-07-13 | 2021-09-17 | 奇瑞新能源汽车股份有限公司 | Brake recovery method and device for autonomous vehicle, vehicle and storage medium |
| CN113400944B (en) * | 2021-07-13 | 2022-06-03 | 奇瑞新能源汽车股份有限公司 | Brake recovery method and device for autonomous vehicle, vehicle and storage medium |
| CN113954645A (en) * | 2021-11-12 | 2022-01-21 | 合众新能源汽车有限公司 | Adaptive cruise control feedback brake torque monitoring method for electric automobile |
| CN113954645B (en) * | 2021-11-12 | 2023-06-23 | 合众新能源汽车股份有限公司 | Self-adaptive cruise control feedback braking torque monitoring method for electric automobile |
| CN114228712A (en) * | 2022-01-21 | 2022-03-25 | 一汽解放汽车有限公司 | Braking negative torque determination method and device in vehicle cruising, vehicle and storage medium |
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