CN106218439A - A kind of vehicle distributed energy dynamical system and control method thereof - Google Patents
A kind of vehicle distributed energy dynamical system and control method thereof Download PDFInfo
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- CN106218439A CN106218439A CN201610827005.0A CN201610827005A CN106218439A CN 106218439 A CN106218439 A CN 106218439A CN 201610827005 A CN201610827005 A CN 201610827005A CN 106218439 A CN106218439 A CN 106218439A
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/32—Control or regulation of multiple-unit electrically-propelled vehicles
- B60L15/38—Control or regulation of multiple-unit electrically-propelled vehicles with automatic control
-
- 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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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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
The invention discloses a kind of vehicle distributed energy dynamical system and control method thereof, relate to new energy vehicle power technology field.Described vehicle distributed energy dynamical system includes driving motor, battery management system and journey device group.Drive motor for driving the vehicle wheel rotation of vehicle；Battery management system is for obtaining the information about power of power battery pack and control described power battery pack discharge and recharge, and battery management system is provided with first and presets power threshold and second and preset power threshold；Journey device group comprises at least two journey devices, starts described journey device when described power battery pack electricity presets power threshold less than described first, provides electric energy to described vehicle.Present invention also offers corresponding control method.The present invention type of drive with many motors and the supply mode of multiple-energy-source, meet different road conditions and different vehicle load matched demand, thus improve car load efficiency, effectively extend electric automobile during traveling mileage, the dynamic property improving system and economy.
Description
Technical field
The present invention relates to new energy vehicle power technology field, particularly relate to the dynamical system of a kind of vehicle distributed energy
System and control method thereof.
Background technology
The energy resource consumption that brings along with the rising of automobile pollution, motor vehicle emission problem, make the environment of China be faced with sternly
High challenge.Along with energy crisis and environment challenge, electric automobile is made to present the trend of accelerated development in Chinese market.Its
In, the type of drive of vehicle and energy resource supply mode are also restriction discharge and the key technology point of environment.
The type of drive of vehicle is many in the market is driven to master with single, many with single driving electricity in new energy vehicle
Machine drives wheel, it is impossible to reaches and meets different road conditions, as level road, road, slope road etc. and different load (such as zero load, semi-load, are expired
Carry etc.) coupling demand.And the energy resource supply mode of vehicle is many using single distance increasing unit as power source, the maximum run with vehicle
Power mates, the vehicle bigger relative to carrying capacity, the most large-scale or heavy passenger vehicle, it is impossible to according to traffic information and car
The change of load capacity and mate accordingly, the utilization ratio of system is low, causes low load with strong power phenomenon, thus is difficult to meet the tightest
The emission regulation demands of lattice and power conservation requirement.
Summary of the invention
It is an object of the present invention to overcome system availability low causing present in prior art cannot meet discharge
And the defect of power conservation requirement, it is provided that the dynamical system of a kind of vehicle distributed energy and control method thereof.
Further object is that and overcome system availability low causing present in prior art cannot meet row
Put and the defect of power conservation requirement, it is provided that a kind of control method being applied to vehicle distributed energy dynamical system.
Especially, the invention provides a kind of vehicle distributed energy dynamical system, for providing power, bag to vehicle
Include:
Drive motor, be arranged on the suspension of described vehicle, for driving the vehicle wheel rotation of described vehicle；
Battery management system, for obtaining the information about power of power battery pack and controlling described power battery pack charge and discharge
Electricity, described battery management system is provided with first and presets power threshold and second and preset power threshold；With
Journey device group, described journey device group comprises at least two journey devices, at described power battery pack electricity less than described
First starts the journey device in described journey device group when presetting power threshold, provide electric energy to described vehicle.
Further, also including entire car controller, described entire car controller is by CAN and electric machine controller, journey
Device group controller and described battery management system connect, and are used for gathering, processing described electric machine controller, the control of described journey device group
Device and the information of described battery management system are also sent to control instruction.
Further, at least two, described driving motor, described driving motor can independently drive corresponding single
Vehicle wheel rotation.
Further, described electric machine controller quantity is equal to the number of units of described driving motor, and described electric machine controller is with each
Self-corresponding described driving motor electrically connects and controls the duty of corresponding described driving motor independently of each other.
Further, described driving motor increases wheel described in torsion rear drive by decelerator so that it is at described vehicle low speed
The biggest torque output is obtained during traveling.
Especially, present invention also offers a kind of control method being applied to described vehicle distributed energy dynamical system,
For providing power to vehicle, comprise the steps:
S1, arranges the type of drive of vehicle；
Described entire car controller arranges the type of drive of described vehicle according to vehicle load and road conditions；
S2, arranges the power source supply mode of vehicle；
Described entire car controller arranges described vehicle according to described power battery pack charge value and car load power demand values
Power source supply mode.
Further, described step S2, the power source supply mode of vehicle is set, comprises the following steps:
S21, obtains power battery pack information about power；
The described electrokinetic cell that described entire car controller is obtained by the described battery management system being connected in CAN
Group charge value；
S22, it may be judged whether open described journey device；
The described power battery pack charge value and first obtained according to described entire car controller is preset power threshold and is compared, institute
State battery electric quantity value higher than described first preset power threshold time, do not start described journey device, described vehicle operation is at pure electricity
Under dynamic model formula；Otherwise, step S23 is entered；
S23, obtains car load power demand values；
According to car load power demand values described in vehicle accelerator pedal position acquisition, described accelerator pedal position information can be passed through
The displacement transducer being arranged in described gas pedal obtains；
S24, arranges journey device mode of operation.
Further, described step S24, journey device mode of operation is set, comprises the following steps:
S241, when described power battery pack electricity presets power threshold, and described car load power demand less than described first
When value is more than predetermined power threshold value, journey device group controller described in described vehicle control unit controls starts one or more described
Journey device, described journey device directly carries electric energy and operates to described driving power wheel；
S242, when described power battery pack electricity is in feed condition, and described car load power demand values is more than presetting
During power threshold, start one or more described journey device conveying electric energy and operate to described driving power wheel, the most right
Described power battery pack is charged；When described power battery pack charges to the second predetermined threshold value or car load power demand values
Less than predetermined power threshold value, described in described vehicle control unit controls, journey device group controller closes one or more described journeys
Device.
The vehicle distributed energy dynamical system of the present invention and control method, can be logical according to vehicle load and traffic information
Cross entire car controller and realize the type of drive of multi-motor driving, as two driven, 4 wheel driven, six drive, it is possible to control single wheel in real time
Moment.And the present invention is provided with journey device group and can pass through according to the charge value of power cell of vehicle group and car load power demand values
The quantity of vehicle control unit controls journey device group intermediate range device unlatching and mode of operation, be greatly enhanced energy power system
Dynamic property and economy, it is possible to realize multi-motor driving and multiple-energy-source supply be combined with each other, utilize system effectiveness substantially, real
Existing environmental protection and energy-conservation vehicle distributed energy dynamical system.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, advantage and the feature of the present invention.
Accompanying drawing explanation
Describe some specific embodiments of the present invention the most by way of example, and not by way of limitation in detail.
Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic diagram of the dynamical system of the vehicle distributed energy of one embodiment of the invention；
Fig. 2 is the work of the control method of the dynamical system being applied to vehicle distributed energy of another embodiment of the present invention
Flow chart.
Detailed description of the invention
Fig. 1 is the schematic diagram of the dynamical system of the vehicle distributed energy of one embodiment of the invention.Such as Fig. 1 institute
State, the invention provides a kind of vehicle distributed energy dynamical system, for providing power to vehicle, including driving motor 3, electricity
Pond management system 8 and journey device group 5.Motor 3 is driven to be arranged on the suspension of described vehicle, for driving the wheel of described vehicle
1 rotates.Battery management system is for obtaining the information about power of power battery pack and controlling described power battery pack discharge and recharge, institute
Stating battery management system 8 to be provided with first and preset power threshold and second and preset power threshold, described battery management system 8 wraps
Include power battery pack and electrokinetic cell group controller, described power battery pack at least two groups.Journey device group 5, comprises at least two
Platform journey device, starts in described journey device group when described power battery pack electricity presets power threshold less than described first
Journey device, provides electric energy to described vehicle.
The vehicle distributed energy dynamical system of the present invention, can be according to vehicle load and traffic information, it is possible to realize the most electric
The type of drive that machine drives, as two driven, 4 wheel driven, six drives, it is possible to control the moment of single wheel in real time.And the present invention is provided with
Journey device group can control journey device group intermediate range device according to the charge value of power cell of vehicle group and car load power demand values and open
Quantity and mode of operation, it is possible to be greatly enhanced power performance and the economy of energy power system.
In one embodiment, the vehicle distributed energy dynamical system of the present invention also includes entire car controller 7, car load control
Device 7 processed is connected with electric machine controller 4, journey device group controller 6 and described battery management system 8 by CAN, is used for adopting
Collect, process described electric machine controller 4, described journey device group controller 6 and the information of described battery management system 8 and be sent to
Control instruction.Each ECU correspondence controls electronic device belonging to it, and electric machine controller 4 electrically connects and right with driving motor 3
Should control to drive the duty of motor 3, at least two, the driving motor 3 of the present invention, described driving motor 3 can independently drive
Corresponding single described wheel 1 rotates, as when ice and snow or mud ground slippery road surface, and can be according to the big I of adhesion of wheels
Control the driving moment of single wheel to control the traveling of vehicle.Described electric machine controller 4 quantity is equal to described driving motor 3
Number of units, electric machine controller 4 is one to one with driving motor 3, described electric machine controller 4 and each self-corresponding described driving electricity
Machine 3 electrically connects and controls the duty of corresponding described driving motor 3 independently of each other, and each electric machine controller can only
Control the driving motor of its correspondence.In system, each driving motor 3 increases wheel 1 described in torsion rear drive by decelerator 2 so that it is
Obtain the biggest torque output during described low vehicle speeds, be greatly improved the grade climbing performance of vehicle.
The motor drive mode of the present invention is distributed type of drive, is provided with multiple driving motor 3 in system, all of
Electric machine controller is both electrically connected with to be put in CAN, entire car controller 7 coordinating and unifying control, permissible in vehicle travel process
According to different road conditions and vehicle load situation, it is achieved the type of drive of multi-motor driving, as two driven, 4 wheel driven, six drive, with full
The different road conditions (such as level road, road, slope road etc.) of foot and different vehicle load (such as zero load, semi-load, being fully loaded with) coupling demand, can
Avoid causing low load with strong power phenomenon, make driving motor 3 be operated in the most efficiently district, thus improve car load efficiency, effectively extend
Electric automobile during traveling mileage, the dynamic property improving system and economy.
In above-described embodiment, journey device group controller 6 electrically connects with journey device group 5 and controls journey device group 5 intermediate range device
Unlatching quantity and mode of operation.Only one of which journey device group controller 6 in this system, comprises at least two in journey device group 5
Journey device, described journey device group controller 6 presets power threshold and according to the information about power and first of power cell of vehicle group
Two preset power threshold control the journey device in journey device group 5 whether open, the quantity opened and the mode of operation of journey device.
The journey device that journey device group controller can control to open directly supplies electricity to drive motor work or while fill power battery pack
Electricity is while supplying electricity to drive motor 3 to work.
Compared with prior art, the vehicle distributed energy dynamical system of the present invention is provided with journey device group 5, and journey device
Group comprises two journey devices, and system can pass through car load control according to the charge value of power cell of vehicle group and car load power demand values
Device processed controls quantity and the mode of operation that journey device group intermediate range device is opened, and makes distance increasing unit always work in efficient district, it is to avoid
Journey device cannot operate in the problem in efficient district because stand-by power is big, thus improve car load efficiency, effectively extend electric automobile
Distance travelled, the dynamic property improving system and economy.
Fig. 2 is the work of the control method of the dynamical system being applied to vehicle distributed energy of another embodiment of the present invention
Flow chart.As in figure 2 it is shown, the invention provides a kind of control method being applied to described vehicle distributed energy dynamical system,
For providing power to vehicle, comprise the steps:
S1, arranges the type of drive of vehicle；
Described entire car controller arranges the type of drive of described vehicle according to vehicle load and road conditions；
S2, arranges the power source supply mode of vehicle；
Described entire car controller arranges described vehicle according to described power battery pack charge value and car load power demand values
Power source supply mode.
Specifically, described step S2, the power source supply mode of vehicle is set, comprises the following steps:
S21, obtains power battery pack information about power；
The described electrokinetic cell that described entire car controller is obtained by the described battery management system being connected in CAN
Group charge value；
S22, it may be judged whether open described journey device；
The described power battery pack charge value and first obtained according to described entire car controller is preset power threshold and is compared, institute
State battery electric quantity value higher than described first preset power threshold time, do not start described journey device, described vehicle operation is at pure electricity
Under dynamic model formula；Otherwise, step S23 is entered；
S23, obtains car load power demand values；
According to car load power demand values described in vehicle accelerator pedal position acquisition, accelerator pedal position information can be by installing
Displacement transducer in gas pedal obtains；
S24, arranges journey device mode of operation.
Specifically, described step S24, journey device mode of operation is set, comprises the following steps:
S241, when described power battery pack electricity presets power threshold, and described car load power demand less than described first
When value is more than predetermined power threshold value, journey device group controller described in described vehicle control unit controls starts one or more described
Journey device, described journey device directly carries electric energy and operates to described driving power wheel；
S242, when described power battery pack electricity is in feed condition, and described car load power demand values is more than presetting
During power threshold, start one or more described journey device conveying electric energy and operate to described driving power wheel, the most right
Described power battery pack is charged；When described power battery pack charges to the second predetermined threshold value or car load power demand values
Less than predetermined power threshold value, described in described vehicle control unit controls, journey device group controller closes one or more described journeys
Device.
In the present invention, distance increasing unit 5 (seeing Fig. 1) is all controlled in efficacious workaround by the power-control method of distributed energy
Work, stops at vehicle or stops the electromotor in distance increasing unit 5 during low speed, with it during engine start in distance increasing unit 5
Motor drag, it is ensured that economy when it starts and discharge performance, saves fuel cost and improves environment.
The present invention type of drive with many motors and the supply mode of multiple-energy-source, meet different road conditions and different vehicle
Load matched demand, thus improve car load efficiency, effectively prolongation electric automobile during traveling mileage, the dynamic property improving system and economy
Property, it is possible to realize multi-motor driving and multiple-energy-source supply be combined with each other, utilize system effectiveness substantially, it is achieved environmental protection is with energy-conservation
Vehicle distributed energy dynamical system.
So far, although those skilled in the art will appreciate that the multiple of the most detailed present invention of illustrate and describing show
Example embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that and recognize
It is set to and covers other variations or modifications all these.
Claims (8)
1. a vehicle distributed energy dynamical system, for providing power to vehicle, including:
Drive motor (3), be arranged on the suspension of described vehicle, for driving the wheel (1) of described vehicle to rotate；
Battery management system (8), for obtaining the information about power of power battery pack and controlling described power battery pack discharge and recharge,
Described battery management system (8) is provided with first and presets power threshold and second and preset power threshold；With
Journey device group (5), described journey device group (5) comprises at least two journey devices, at described power battery pack electricity less than institute
State first when presetting power threshold and start the journey device in described journey device group, provide electric energy to described vehicle.
Vehicle distributed energy dynamical system the most according to claim 1, it is characterised in that also include entire car controller
(7), described entire car controller (7) is by CAN and electric machine controller (4), journey device group controller (6) and described cell tube
Reason system (8) connects, and is used for gathering, processing described electric machine controller (4), described journey device group controller (6) and described battery
The information of management system (8) is also sent to control instruction.
Vehicle distributed energy dynamical system the most according to claim 1 and 2, it is characterised in that described driving motor (3)
At least two, described driving motor (3) can independently drive corresponding single wheel (1) to rotate.
Vehicle distributed energy dynamical system the most according to claim 3, it is characterised in that described electric machine controller (4)
Quantity is equal to the number of units of described driving motor (3), described electric machine controller (4) and each self-corresponding described driving motor (3) electricity
Connect and control independently of each other the duty of corresponding described driving motor (3).
Vehicle distributed energy dynamical system the most according to claim 4, it is characterised in that described driving motor (3) is led to
Cross decelerator (2) and increase wheel (1) described in torsion rear drive so that it is obtain the biggest torque when described low vehicle speeds defeated
Go out.
6. it is applied to a control method for vehicle distributed energy dynamical system according to any one of claim 1-5, uses
In providing power to vehicle, comprise the steps:
S1, arranges the type of drive of vehicle；
Described entire car controller arranges the type of drive of described vehicle according to vehicle load and road conditions；
S2, arranges the power source supply mode of vehicle；
Described entire car controller arranges the dynamic of described vehicle according to described power battery pack charge value and car load power demand values
Power energy resource supply mode.
Control method the most according to claim 6, it is characterised in that described step S2, the power source arranging vehicle supplies
To mode, comprise the following steps:
S21, obtains power battery pack information about power；
The described power battery pack electricity that described entire car controller is obtained by the described battery management system being connected in CAN
Value；
S22, it may be judged whether open described journey device；
The described power battery pack charge value and first obtained according to described entire car controller is preset power threshold and is compared, described electricity
When pond group charge value presets power threshold higher than described first, not starting described journey device, described vehicle operation is at pure electronic mould
Under formula；Otherwise, step S23 is entered；
S23, obtains car load power demand values；
According to car load power demand values described in vehicle accelerator pedal position acquisition, described accelerator pedal position information can be by installing
Displacement transducer in described gas pedal obtains；
S24, arranges journey device mode of operation.
Control method the most according to claim 7, it is characterised in that described step S24, arranges journey device mode of operation,
Comprise the following steps:
S241, when described power battery pack electricity presets power threshold less than described first, and described car load power demand values is big
When predetermined power threshold value, journey device group controller described in described vehicle control unit controls starts one or more described journeys
Device, described journey device directly carries electric energy and operates to described driving power wheel；
S242, when described power battery pack electricity is in feed condition, and described car load power demand values is more than predetermined power
During threshold value, start one or more described journey device conveying electric energy and operate to described driving power wheel, simultaneously to described
Power battery pack is charged；When described power battery pack charges to the second predetermined threshold value or car load power demand values is less than
Predetermined power threshold value, journey device group controller described in described vehicle control unit controls closes one or more described journey devices.
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| CN109107142A (en) * | 2018-10-17 | 2019-01-01 | 上海知此电子科技有限公司 | A kind of electric return board and its redundancy control method |
| CN109107142B (en) * | 2018-10-17 | 2019-12-06 | 上海知此电子科技有限公司 | Electric skateboard and redundancy control method thereof |
| CN109969000A (en) * | 2019-05-08 | 2019-07-05 | 厦门市福工动力技术有限公司 | A kind of pure electric vehicle extended-range system |
| CN109969000B (en) * | 2019-05-08 | 2024-04-02 | 厦门市福工动力技术有限公司 | Range-extending system for pure electric vehicle |
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