CN107351838B - Periodical power distribution method, device and the vehicle of motorized vehicle cruise control - Google Patents
Periodical power distribution method, device and the vehicle of motorized vehicle cruise control Download PDFInfo
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- CN107351838B CN107351838B CN201710621903.5A CN201710621903A CN107351838B CN 107351838 B CN107351838 B CN 107351838B CN 201710621903 A CN201710621903 A CN 201710621903A CN 107351838 B CN107351838 B CN 107351838B
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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
- 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
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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
- 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
-
- 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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/081—Speed
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses periodical power distribution method, device and the vehicles of a kind of control of motorized vehicle cruise, wherein, method includes: to receive vehicle cruise speed, speed wave momentum and traveling total kilometrage, and obtain the speed upper bound and speed lower bound according to vehicle cruise speed, speed wave momentum and traveling total kilometrage；Vehicle is controlled according to speed lower bound and enters the first cruising phase, and starts engine and first motor, and closes the second motor；When current vehicle speed is greater than or equal to the speed upper bound, control vehicle enters the second cruising phase, and starts first motor, and closes engine and the second motor；And when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase, and starts first motor and the second motor, and continues to close engine.This method is according to the power between the speed upper bound and speed lower bound reasonable distribution vehicle motor and/or multiple motors, to improve the economy of vehicle, intelligence, and improves the practicability of vehicle.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of periodical power distribution of motorized vehicle cruise control
Method, apparatus and vehicle.
Background technique
Energy conservation and environmental protection have become world today's two principal themes, to overcome due to the communications and transportation bring energy
Consumption and problem of environmental pollution, countries in the world government and scholar propose a variety of counte-rplan, including the purchase of vehicle limit, implementation are more
The efficiency of energy utilization of stringent emission regulation, raising conventional truck, tap a new source of energy automotive engineering etc..Wherein, new energy
Technology of Hybrid Electric Vehicle in automotive engineering scope is that grow up one of phase is intended to reduce fuel consumption and pollution at the end of the 20th century
The new technology of object discharge, is the important implementation of current stage communications and transportation energy-saving and emission-reduction.At this stage, automobile energy-saving mainly from
The following aspects is started with: improving vehicle assembly efficiency, such as VVT (Variable Valve Timing, changeable air valve in recent years
Timing), DCT (Dual Clutch Transmission, dual clutch transmission), GDI (Gasoline Direct
Injection, gasoline in-cylinder direct-jet) etc. technologies research and development and application；Intelligent traffic system；New energy development and utilization, such as
Pure electric automobile, fuel cell car, hydrogen energy source automobile etc.；Economy driving technology.Wherein, economy driving technology is current
Scientific research hot spot and automobile energy-saving emission reduction field important development direction.
Periodical control strategy is the research hotspot during current economy drives, the periodical cruise control plan about vehicle
Slightly, the extensive concern of countries in the world scholar is caused in recent years.In the related technology, strategy vehicle periodically to be cruised is named as
PnG (Pulseand Glide, acceleration-slip), and pass through this influence of strategy to fuel economy of simulation analysis.By right
Descending operating condition under the environment of mountain area has scholar to propose the method for reducing fuel consumption using PnG strategy.Further, by PnG
Strategy is applied under Car following, to improve the fuel economy of vehicle, and proposes engine " S " type oil spout curve, for the first time
The reason of improving economy using PnG strategy is explained from mechanism.It is directed to gear discreteness vehicle in the related technology, proposes
A kind of practical PnG strategy of near-optimization, and propose " forcing downshift " when acceleration strategy.In addition, parallel type hybrid dynamic
PnG application of the vehicle under cruising condition, is divided into two kinds of subtypes: being fixed vehicle speed first, fluctuate battery SOC (State of
Charge, battery charge state)；Followed by fluctuate speed, fixed battery SOC, to obtain the stronger knot of the latter's fuel-economizing ability
By, and qualitative interpretation is given from the angle of energy utilization efficiency.Train experiment demonstrates the good fuel-economizing ability of PnG strategy,
It is better than the conclusion slided with shelves to demonstrate neutral position sliding in PnG strategy.
Although motorized vehicle is the maximum type of vehicle of energy-saving potential in vehicle, its periodical cruise control strategy
Research at present still be in blank.As a quasi-representative multi-crossed disciplines system, the electrical, machine of motorized vehicle Deep integrating
Tool, chemically and thermally mechanical system, while system energy utilization efficiency is promoted, since the presence of multi power source is but also system
Management and coordinate more complicated, the energy of system and power management strategy just directly directly produce shadow to system performance at this time
It rings, it would be highly desirable to solve.
Summary of the invention
The present invention is directed to solve the problems in the relevant technologies at least to a certain extent.
For this purpose, an object of the present invention is to provide a kind of periodical power distribution sides of motorized vehicle cruise control
The economy and intelligence of vehicle can be improved in method, this method, and improves vehicle reliability and practicability.
It is another object of the present invention to the periodical distributing means for power supply for proposing a kind of motorized vehicle cruise control.
Another object of the present invention is to propose a kind of motorized vehicle.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of periodicity of motorized vehicle cruise control
Power distribution method, wherein the dynamical system of motorized vehicle includes that engine, first motor and the second motor, method include
Following steps: vehicle cruise speed, speed wave momentum and traveling total kilometrage are received, and according to the vehicle cruise speed, speed
Undulate quantity and traveling total kilometrage obtain the speed upper bound and speed lower bound；Vehicle, which is controlled, according to the speed lower bound enters the first cruise
Stage, and start the engine and the first motor, and close second motor；It is greater than or equal to institute in current vehicle speed
When stating the speed upper bound, the vehicle is controlled into the second cruising phase, and start the first motor, and close the engine
With second motor；When the current vehicle speed is less than or equal to the speed lower bound, controls the vehicle and enter third and patrol
The boat stage, and start the first motor and second motor, and continue to close the engine.
The periodical power distribution method of the motorized vehicle cruise control of the embodiment of the present invention, first according to speed lower bound
It controls vehicle and enters the first cruising phase, secondly when current vehicle speed is greater than or equal to the speed upper bound, control vehicle enters second
Cruising phase, finally when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase, according to speed
The upper bound and lower bound intelligently plan the cruising speed of vehicle, the power between reasonable distribution vehicle motor and/or multiple motors,
To improve the economy and intelligence of vehicle, and then the dependable with function of vehicle is improved, it is energy saving, meet user's
Use demand.
In addition, the periodical power distribution method of motorized vehicle cruise control according to the above embodiment of the present invention may be used also
With following additional technical characteristic:
Further, in one embodiment of the invention, described that vehicle is controlled into first according to the speed lower bound
Cruising phase, and start the engine and the first motor, and close second motor, further comprise: adjusting institute
It states in the output torque to optimum efficiency region of engine, and adjusts the revolving speed of the first motor with torque so that described start
The revolving speed of machine is in the optimum efficiency region, and vehicle is accelerated；Judge whether current driving mileage is less than the row
Sail total kilometrage；If it is, continuing to adjust the output torque of the engine, the revolving speed of the first motor and torque, otherwise
The distribution of end period power；Judge whether the current vehicle speed is less than the speed upper bound；If it is, continuing described in adjusting
Otherwise the output torque of engine, the revolving speed of the first motor and torque enter second cruising phase.
Further, in one embodiment of the invention, described to be greater than or equal to the speed upper bound in current vehicle speed
When, the vehicle is controlled into the second cruising phase, and start the first motor, and close the engine and described second
Motor further comprises: adjust the first motor revolving speed and torque so that the revolving speed of the engine be maintained at it is described most
In excellent efficiency band；Judge whether the current driving mileage is less than the traveling total kilometrage；If it is, continuing described in adjusting
The revolving speed of first motor and torque, otherwise end period power distributes；Judge whether the current vehicle speed is greater than the speed
Lower bound；If it is, continuing to adjust revolving speed and the torque of the first motor, otherwise enter the third cruising phase.
Further, in one embodiment of the invention, described to be less than or equal to the speed in the current vehicle speed
It when lower bound, controls the vehicle and enters third cruising phase, and start the first motor and second motor, and continue to close
Close the engine, further comprise: the revolving speed for adjusting the first motor and torque are so that the revolving speed of the engine is kept
In the optimum efficiency region, and the driving moment equal with the resistance torque of vehicle is provided by second motor；Judgement
Whether the current driving mileage is less than the traveling total kilometrage；If it is, continue to adjust the revolving speed of the first motor with
Torque, and the driving moment is provided by second motor, otherwise end period power distributes；Judge the surplus of present battery
Whether remaining electricity is greater than the remaining capacity lower bound of preset initial cells；If it is, continuing to adjust turning for the first motor
Speed and torque, and the driving moment is provided by second motor, otherwise it is again introduced into first cruising phase.
Optionally, in one embodiment of the invention, the optimum efficiency region is according to the optimal effect of the engine
Rate operating point obtains.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of period of motorized vehicle cruise control
Property distributing means for power supply, the dynamical system of motorized vehicle includes engine, first motor and the second motor, wherein device packet
It includes: receiving module, for receiving vehicle cruise speed, speed wave momentum and traveling total kilometrage, and according to the vehicle cruise speed
Degree, speed wave momentum and traveling total kilometrage obtain the speed upper bound and speed lower bound；Control module, for according to the speed lower bound
It controls vehicle and enters the first cruising phase, and start the engine and the first motor, and close second motor, and
And when current vehicle speed is greater than or equal to the speed upper bound, the vehicle is controlled into the second cruising phase, and described in starting
First motor, and the engine and second motor are closed, and be less than or equal to the speed in the current vehicle speed
It when lower bound, controls the vehicle and enters third cruising phase, and start the first motor and second motor, and continue to close
Close the engine.
The periodical distributing means for power supply of the motorized vehicle cruise control of the embodiment of the present invention, first according to speed lower bound
It controls vehicle and enters the first cruising phase, secondly when current vehicle speed is greater than or equal to the speed upper bound, control vehicle enters second
Cruising phase, finally when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase, according to speed
The upper bound and lower bound intelligently plan the cruising speed of vehicle, the power between reasonable distribution vehicle motor and/or multiple motors,
To improve the economy and intelligence of vehicle, and then the dependable with function of vehicle is improved, it is energy saving, meet user's
Use demand.
In addition, the periodical distributing means for power supply of motorized vehicle cruise control according to the above embodiment of the present invention may be used also
With following additional technical characteristic:
Further, in one embodiment of the invention, the control module includes: the first adjusting unit, for adjusting
It saves in the output torque to optimum efficiency region of the engine, and adjusts the revolving speed of the first motor with torque so that described
The revolving speed of engine is in the optimum efficiency region；First judging unit, for judging whether current driving mileage is less than
The traveling total kilometrage, and judge whether the current vehicle speed is less than the speed upper bound；First control unit, for being less than
When the traveling total kilometrage, continues to adjust the output torque of the engine, the revolving speed of the first motor and torque, otherwise tie
Beam periodicity power distribution, and when being less than the speed upper bound continues to adjust the output torque of the engine, described the
Otherwise the revolving speed of one motor and torque enter second cruising phase.
Further, in one embodiment of the invention, the control module further include: second adjusts unit, is used for
The revolving speed for adjusting the first motor and torque are so that the revolving speed of the engine is maintained in the optimum efficiency region；Second
Judging unit for judging whether the current driving mileage is less than the traveling total kilometrage, and judges that the current vehicle speed is
It is no to be greater than the speed lower bound；Second control unit adjusts first electricity for continuing when being less than the traveling total kilometrage
The revolving speed of machine and torque, otherwise end period power distributes, and when being greater than the speed lower bound, continues to adjust described the
Otherwise the revolving speed of one motor and torque enter the third cruising phase.
Further, in one embodiment of the invention, the control module further include: third adjusts unit, is used for
The revolving speed for adjusting the first motor and torque so that the revolving speed of the engine is maintained in the optimum efficiency region, and by
Second motor provides the driving moment equal with the resistance torque of vehicle；Third judging unit, it is described current for judging
Whether mileage travelled is less than the traveling total kilometrage, and judges whether the remaining capacity of present battery is greater than preset initial cells
Remaining capacity lower bound；Third control unit, for continuing to adjust the first motor when being less than the traveling total kilometrage
Revolving speed and torque, and the driving moment is provided by second motor, otherwise end period power distributes, and is being greater than
When the remaining capacity lower bound of preset initial cells, continue the revolving speed and the torque that adjust the first motor, and by described second
Motor provides the driving moment, is otherwise again introduced into first cruising phase.
In order to achieve the above objectives, further aspect of the present invention embodiment proposes a kind of motorized vehicle comprising dynamical system
The periodical distributing means for power supply that system and above-mentioned motorized vehicle cruise control.Wherein, dynamical system includes engine, first
Motor and the second motor.The vehicle can control vehicle according to speed lower bound first and enter the first cruising phase, secondly current
When speed is greater than or equal to the speed upper bound, control vehicle enters the second cruising phase, is finally less than or equal to vehicle in current vehicle speed
When fast lower bound, control vehicle enters third cruising phase, and the cruise speed of vehicle is intelligently planned according to the upper bound of speed and lower bound
Degree, the power between reasonable distribution vehicle motor and/or multiple motors, to improve the economy and intelligence of vehicle, in turn
The dependable with function of vehicle is improved, it is energy saving, meet the use demand of user.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the mechanical construction drawing schematic diagram according to the controll plant of one embodiment of the invention；
Fig. 2 is the process of the periodical power distribution method controlled according to the motorized vehicle cruise of the embodiment of the present invention
Figure；
Fig. 3 is the stream of the periodical power distribution method controlled according to the motorized vehicle cruise of one embodiment of the invention
Cheng Tu；
Fig. 4 is the vehicle-state and control variable schematic diagram according to one embodiment of the invention；
Fig. 5 is the periodical power allocation strategy operation chart according to a specific embodiment of the invention；
Fig. 6 is the knot of the periodical distributing means for power supply controlled according to the motorized vehicle cruise of one embodiment of the invention
Structure schematic diagram.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Periodical power distribution method, dress in the motorized vehicle cruise control for describing the embodiment of the present invention with reference to the accompanying drawings
Set and vehicle before, the structure of the dynamical system of motorized vehicle in the related technology is first briefly described.
As shown in Figure 1, the dynamical system of motorized vehicle include engine 100, first motor MG1, the second motor MG2,
Power divider and retarder 200, wherein power divider can be single power divider 300 or power divider packet
Include the first power divider 400 and the second power divider 500.Wherein, engine 100, first motor MG1, the second motor MG2
Effect and its structure with power divider be all for those skilled in the art it is known, for reduce redundancy, do not do have herein
Body repeats.
The structure of the dynamical system of the motorized vehicle can be divided into two class of single planetary gear train and double-row planetary gear, under
The face embodiment of the present invention will be illustrated by taking single planetary gear train as an example, but identical method is also applied for double-row planetary gear
Situation.
The periodical power of the motorized vehicle cruise proposed according to embodiments of the present invention control is described with reference to the accompanying drawings
Distribution method, device and vehicle describe the motorized vehicle cruise control proposed according to embodiments of the present invention with reference to the accompanying drawings first
The periodical power distribution method of system.
Fig. 2 is the flow chart of the periodical power distribution method of the motorized vehicle cruise control of the embodiment of the present invention.
As shown in Fig. 2, the motorized vehicle cruise control periodical power distribution method the following steps are included:
In step s 201, vehicle cruise speed, speed wave momentum and traveling total kilometrage are received, and according to vehicle cruise speed
The speed upper bound and speed lower bound is calculated in degree, speed wave momentum and traveling total kilometrage.
It is understood that driver can set vehicle cruise speed Vdes, speed wave momentum δ and traveling total kilometrage
Sf, to calculate speed upper bound V by ECU (Electronic Control Unit, electronic control unit)max, under speed
Boundary Vmin:
Vmax=Vdes(1+ δ),
Vmin=Vdes·(1-δ)。
In step S202, vehicle is controlled according to speed lower bound and enters the first cruising phase, and starts engine and first
Motor, and close the second motor.
Wherein, in one embodiment of the invention, vehicle is controlled according to speed lower bound and enters the first cruising phase, and opened
Dynamic engine and first motor, and close the second motor further comprise: adjusting the output torque of engine to optimum efficiency area
In domain, and the revolving speed for adjusting first motor and torque are so that the revolving speed of engine is in optimum efficiency region, and makes vehicle
Accelerate；Judge whether current driving mileage is less than traveling total kilometrage；If it is, continuing to adjust the output torque of engine, the
The revolving speed of one motor and torque, otherwise end period power distributes；Judge whether current vehicle speed is less than the speed upper bound；If
It is then to continue to adjust the output torque of engine, the revolving speed of first motor and torque, otherwise enters the second cruising phase.
Optionally, in one embodiment of the invention, the method for the embodiment of the present invention further include: optimum efficiency region root
It is obtained according to the optimum efficiency operating point of engine.For example, if note engine optimum efficiency operating point isThen this hair
In bright embodiment, the definition in optimum efficiency region can be
It is understood that as shown in figure 3, start to execute periodical strategy in the signal for receiving ECU and passing to engine,
To adjust speed to the initial speed V of the first cruising phasemin, and start to execute the first cruising phase: starting engine,
First motor closes the second motor, wherein first motor is in Generator Status.In an embodiment of the present invention, the present invention is real
The specific regulating step of the first cruising phase for applying example includes:
Step 1: adjusting engine output torque Teng(need to be greater than resistance torque, accelerate vehicle) to engine optimum is imitated
In rate region；Adjust first motor rotational speed omegaMG1With torque TMG1, so that engine speed ωengIt is also at maximum efficiency areas
It is interior；
Step 2: comparing current driving mileage S and default total kilometres SfIf S < Sf, then step 1 is continued to execute, otherwise
The distribution of end period power；
Step 3: comparing current vehicle speed V and preset vehicle speed upper bound VmaxIf V < Vmax, then step 1 is continued to execute, is otherwise entered
Second cruising phase.
In step S203, when current vehicle speed is greater than or equal to the speed upper bound, control vehicle enters the second cruising phase,
And start first motor, and close engine and the second motor.
Wherein, in one embodiment of the invention, current vehicle speed be greater than or equal to the speed upper bound when, control vehicle into
Enter the second cruising phase, and start first motor, and close engine and the second motor, further comprise: adjusting first motor
Revolving speed and torque so that the revolving speed of engine is maintained in optimum efficiency region；Judge whether current driving mileage is less than traveling
Total kilometrage；If it is, continuing revolving speed and the torque of adjusting first motor, otherwise end period power is distributed；Judgement is current
Whether speed is greater than speed lower bound；If it is, continuing revolving speed and the torque of adjusting first motor, otherwise enter third cruise rank
Section.
It is understood that as shown in figure 3, control vehicle enters the when current vehicle speed is greater than or equal to the speed upper bound
Two cruising phases, and start first motor, and close engine and the second motor.Wherein, first motor is in driving motor shape
State.
In an embodiment of the present invention, the specific regulating step of the second cruising phase of the embodiment of the present invention includes:
Step 1: adjusting first motor rotational speed omegaMG1With torque TMG1It (torque is less than the moment of resistance, and vehicle sliding slows down), will
Engine speed is maintained in optimum efficiency region；
Step 2: comparing current driving mileage S and default total kilometres SfIf S < Sf, then step 1 is continued to execute, otherwise
The distribution of end period power；
Step 3: comparing current vehicle speed V and preset vehicle speed lower bound VminIf V > Vmin, then continue to execute step 1, otherwise into
Enter third cruising phase.
In step S204, when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase,
And start first motor and the second motor, and continue to close engine.
Wherein, in one embodiment of the invention, current vehicle speed be less than or equal to speed lower bound when, control vehicle into
Enter third cruising phase, and start first motor and the second motor, and continue to close engine, further comprises: adjusting first
Revolving speed and the torque of motor are so that the revolving speed of engine is maintained in optimum efficiency region, and is provided and vehicle by the second motor
The equal driving moment of resistance torque；Judge whether current driving mileage is less than traveling total kilometrage；If it is, continuing adjusting
The revolving speed of one motor and torque, and driving moment is provided by the second motor, otherwise end period power distributes；The current electricity of judgement
Whether the remaining capacity in pond is greater than the remaining capacity lower bound of preset initial cells；If it is, continuing to adjust first motor
Revolving speed and torque, and driving moment is provided by the second motor, otherwise it is again introduced into the first cruising phase.
It is understood that as shown in figure 3, control vehicle enters the when current vehicle speed is less than or equal to speed lower bound
Three cruising phases, and start first motor and the second motor, and close engine.Wherein, first motor and the second motor are located
In driving motor state.
In an embodiment of the present invention, the specific regulating step of third cruising phase of the embodiment of the present invention includes:
Step 1: adjusting first motor rotational speed omegaMG1With torque TMG1, engine speed is maintained at optimum efficiency region
It is interior；Second motor provides driving moment TMG2(roughly equal with resistance torque, speed fluctuation is unobvious)；
Step 2: comparing current driving mileage S and default total kilometres SfIf S < Sf, then step 1 is continued to execute, otherwise
The distribution of end period power；
Step 3: comparing the remaining capacity SOC and initial cells SOC lower bound SOC of present battery0If SOC > SOC0, then after
It is continuous to execute step 1, otherwise it is again introduced into the first cruising phase.
For example, work as Vdes=60km/h, and emulate used in vehicle major parameter it is as shown in table 1 when.Wherein,
Table 1 is vehicle major parameter table.
Table 1
Vehicle cruise speed, speed undulate quantity are determined first and calculates speed fluctuates bound.For example, setting Vdes=60km/
H, δ=10%, then Vmax=Vdes(1+ δ)=66km/h, Vmin=Vdes(1- δ)=54km/h.Secondly, according to periodical section
The policy definition that can cruise is configured and solves, so as to obtain vehicle-state and control variable versus time curve,
As shown in Figure 4 and Figure 5.Further, 100 gas mileages of every traveling are 2.98 liters in the case of 60km/h, are equivalent to 78.81 English
In/gallon.Under identical cruise speed, different dynamic allocation strategy is depended on, 100 gas mileage of every traveling when at the uniform velocity cruising is extremely
Less it is 3.48 liters, is equivalent to 67.50 miles per gallons.Under this speed, distribution method according to an embodiment of the present invention can make
Fuel economy improves at least 14.37%, effectively improves the economy of vehicle.
It is understood that the method for the embodiment of the present invention can when the method for the embodiment of the present invention is applied in practice
To be that motorized vehicle provides a kind of periodical speed and SOC rises speed and SOC rising-vehicle as a kind of driving auxiliary strategy
The three-stage cruise method of fast decline-SOC decline.The method of the embodiment of the present invention is considering vehicle power distributor kinematics about
On the basis of beam, the periodical power distribution method of motorized vehicle cruise control is proposed, thus the power point that optimization obtains
There is better fuel economy with mode, and then improve the energy saving of vehicle, improve the practicability of vehicle.
The periodical power distribution method of the motorized vehicle cruise control proposed according to embodiments of the present invention, first basis
Speed lower bound controls vehicle and enters the first cruising phase, secondly when current vehicle speed is greater than or equal to the speed upper bound, controls vehicle
Into the second cruising phase, finally when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase,
The cruising speed of vehicle, reasonable distribution vehicle motor and/or multiple motors are intelligently planned according to the upper bound of speed and lower bound
Between power, to improve the economy and intelligence of vehicle, and then improve the dependable with function of vehicle, it is energy saving,
Meet the use demand of user.
Referring next to the periodical power for the motorized vehicle cruise control that attached drawing description proposes according to embodiments of the present invention
Distributor.
Fig. 6 is that the structure of the periodical distributing means for power supply of the motorized vehicle cruise control of one embodiment of the invention is shown
It is intended to.
As shown in fig. 6, the periodical distributing means for power supply 10 of motorized vehicle cruise control includes: receiving module 101
With control module 102.
Wherein, receiving module 101 is used to receive vehicle cruise speed, speed wave momentum and traveling total kilometrage, and according to vehicle
Cruising speed, speed wave momentum and traveling total kilometrage obtain the speed upper bound and speed lower bound.Control module 102 is used for according to vehicle
Fast lower bound control vehicle enters the first cruising phase, and starts engine and first motor, and close the second motor, and working as
When preceding speed is greater than or equal to the speed upper bound, control vehicle enters the second cruising phase, and starts first motor, and closes and start
Machine and the second motor, and when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase, and opens
Dynamic first motor and the second motor, and continue to close engine.The device 10 of the embodiment of the present invention is considering vehicle power distribution
On the basis of device kinematical constraint, the periodical power allocation strategy of motorized vehicle is proposed, to improve vehicle fuel warp
Ji property, and improve vehicle utility.
It further, is in one embodiment in the present invention, control module 102 includes: the first adjusting unit, the first judgement
Unit and first control unit.
Wherein, the first adjusting unit is used to adjust in the output torque to optimum efficiency region of engine, and adjusts first
The revolving speed of motor and torque are so that the revolving speed of engine is in optimum efficiency region.First judging unit is for judging current line
It sails whether mileage is less than traveling total kilometrage, and judges whether current vehicle speed is less than the speed upper bound.First control unit is used for small
When travelling total kilometrage, continue to adjust the output torque of engine, the revolving speed of first motor and torque, otherwise end period is dynamic
Power distribution, and when being less than the speed upper bound, continue to adjust the output torque of engine, the revolving speed of first motor and torque, it is no
Then enter the second cruising phase.
It further, is control module 102 in one embodiment in the present invention further include: the second adjusting unit, second are sentenced
Disconnected unit and the second control unit.
Wherein, revolving speed and torque of the second adjusting unit for adjusting first motor are so that the revolving speed of engine is maintained at most
In excellent efficiency band.Second judgment unit judges to work as front truck for judging whether current driving mileage is less than traveling total kilometrage
Whether speed is greater than speed lower bound.Second control unit is used for the revolving speed for continuing to adjust first motor when being less than traveling total kilometrage
With torque, otherwise end period power is distributed, and when being greater than speed lower bound, is continued the revolving speed for adjusting first motor and is turned
Otherwise square enters third cruising phase.
It further, is control module 102 in one embodiment in the present invention further include: third adjusts unit, third is sentenced
Disconnected unit and third control unit.
Wherein, third adjusts revolving speed and torque of the unit for adjusting first motor so that the revolving speed of engine is maintained at most
In excellent efficiency band, and the driving moment equal with the resistance torque of vehicle is provided by the second motor.Third judging unit is used for
Judge whether current driving mileage is less than traveling total kilometrage, and it is preset initial to judge whether the remaining capacity of present battery is greater than
The remaining capacity lower bound of battery.Third control unit is used for the revolving speed for continuing to adjust first motor when being less than traveling total kilometrage
With torque, and by the second motor provide driving moment, otherwise end period power distribute, and be greater than preset initial electricity
When the remaining capacity lower bound in pond, continue the revolving speed and the torque that adjust first motor, and provide driving moment by the second motor, otherwise
It is again introduced into the first cruising phase.
It should be noted that the explanation of the aforementioned periodical power distribution method embodiment to the control of motorized vehicle cruise
Illustrate the periodical distributing means for power supply for the motorized vehicle cruise control for being also applied for the embodiment, details are not described herein again.
The periodical distributing means for power supply of the motorized vehicle cruise control proposed according to embodiments of the present invention, first basis
Speed lower bound controls vehicle and enters the first cruising phase, secondly when current vehicle speed is greater than or equal to the speed upper bound, controls vehicle
Into the second cruising phase, finally when current vehicle speed is less than or equal to speed lower bound, control vehicle enters third cruising phase,
The cruising speed of vehicle, reasonable distribution vehicle motor and/or multiple motors are intelligently planned according to the upper bound of speed and lower bound
Between power, to improve the economy and intelligence of vehicle, and then improve the dependable with function of vehicle, it is energy saving,
Meet the use demand of user.
In addition, the embodiment of the present invention also proposed a kind of motorized vehicle, the vehicle include above-mentioned dynamical system and
The periodical distributing means for power supply of motorized vehicle cruise control.Wherein, dynamical system includes engine, first motor and second
Motor.The vehicle can control vehicle according to speed lower bound first and enter the first cruising phase, be secondly greater than in current vehicle speed or
When equal to the speed upper bound, control vehicle enters the second cruising phase, finally when current vehicle speed is less than or equal to speed lower bound, control
Vehicle processed enters third cruising phase, and the cruising speed of vehicle, reasonable distribution are intelligently planned according to the upper bound of speed and lower bound
Power between vehicle motor and/or multiple motors, to improve the economy and intelligence of vehicle, and then improve vehicle can
It is energy saving by property and practicability, meet the use demand of user.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of periodical power distribution method of motorized vehicle cruise control, which is characterized in that the power of motorized vehicle
System includes engine, first motor and the second motor, wherein method the following steps are included:
Vehicle cruise speed, speed wave momentum and traveling total kilometrage are received, and according to the vehicle cruise speed, speed wave momentum
The speed upper bound and speed lower bound are obtained with traveling total kilometrage；
Vehicle is controlled according to the speed lower bound and enters the first cruising phase, and starts the engine and the first motor,
And close second motor；
When current vehicle speed is greater than or equal to the speed upper bound, the vehicle is controlled into the second cruising phase, and start institute
First motor is stated, and closes the engine and second motor；And
When the current vehicle speed is less than or equal to the speed lower bound, controls the vehicle and enter third cruising phase, and open
The first motor and second motor are moved, and continues to close the engine.
2. the periodical power distribution method of motorized vehicle cruise control according to claim 1, which is characterized in that institute
It states and vehicle is controlled into the first cruising phase according to the speed lower bound, and start the engine and the first motor, and
Second motor is closed, further comprises:
Adjust in the output torque to optimum efficiency region of the engine, and adjust revolving speed and the torque of the first motor with
It is in the revolving speed of the engine in the optimum efficiency region, and vehicle is accelerated；
Judge whether current driving mileage is less than the traveling total kilometrage；
If it is, continuing to adjust the output torque of the engine, the revolving speed of the first motor and torque, otherwise terminate week
The distribution of phase property power；
Judge whether the current vehicle speed is less than the speed upper bound；And
If it is, continuing to adjust the output torque of the engine, the revolving speed of the first motor and torque, otherwise enter institute
State the second cruising phase.
3. the periodical power distribution method of motorized vehicle cruise control according to claim 2, which is characterized in that institute
It states when current vehicle speed is greater than or equal to the speed upper bound, controls the vehicle into the second cruising phase, and described in starting
First motor, and the engine and second motor are closed, further comprise:
The revolving speed for adjusting the first motor and torque are so that the revolving speed of the engine is maintained in the optimum efficiency region；
Judge whether the current driving mileage is less than the traveling total kilometrage；
If it is, continuing to adjust revolving speed and the torque of the first motor, otherwise end period power is distributed；
Judge whether the current vehicle speed is greater than the speed lower bound；And
If it is, continuing to adjust revolving speed and the torque of the first motor, otherwise enter the third cruising phase.
4. the periodical power distribution method of motorized vehicle cruise control according to claim 2 or 3, feature exist
In, it is described to control the vehicle when the current vehicle speed is less than or equal to the speed lower bound and enter third cruising phase, and
Start the first motor and second motor, and continue to close the engine, further comprises:
The revolving speed for adjusting the first motor and torque so that the revolving speed of the engine is maintained in the optimum efficiency region,
And the driving moment equal with the resistance torque of vehicle is provided by second motor；
Judge whether the current driving mileage is less than the traveling total kilometrage；
If it is, continuing to adjust revolving speed and the torque of the first motor, and the driving force is provided by second motor
Square, otherwise end period power distributes；
Judge whether the remaining capacity of present battery is greater than the remaining capacity lower bound of preset initial cells；And
If it is, continuing to adjust revolving speed and the torque of the first motor, and the driving force is provided by second motor
Otherwise square is again introduced into first cruising phase.
5. the periodical power distribution method of motorized vehicle cruise control according to claim 2, which is characterized in that institute
Optimum efficiency region is stated to be obtained according to the optimum efficiency operating point of the engine.
6. a kind of periodical distributing means for power supply of motorized vehicle cruise control, which is characterized in that the power of motorized vehicle
System includes engine, first motor and the second motor, wherein device includes:
Receiving module, for receiving vehicle cruise speed, speed wave momentum and traveling total kilometrage, and according to the vehicle cruise speed
Degree, speed wave momentum and traveling total kilometrage obtain the speed upper bound and speed lower bound；
Control module, for according to the speed lower bound control vehicle enter the first cruising phase, and start the engine and
The first motor, and second motor is closed, and when current vehicle speed is greater than or equal to the speed upper bound, control institute
Vehicle is stated into the second cruising phase, and starts the first motor, and closes the engine and second motor, and
When the current vehicle speed is less than or equal to the speed lower bound, controls the vehicle and enter third cruising phase, and start institute
First motor and second motor are stated, and continues to close the engine.
7. the periodical distributing means for power supply of motorized vehicle cruise control according to claim 6, which is characterized in that institute
Stating control module includes:
First adjusts unit, in the output torque to optimum efficiency region for adjusting the engine, and adjusts described first
The revolving speed of motor and torque are so that the revolving speed of the engine is in the optimum efficiency region；
First judging unit works as front truck for judging whether current driving mileage is less than the traveling total kilometrage, and described in judgement
Whether speed is less than the speed upper bound；
First control unit, for when being less than the traveling total kilometrage, continuing to adjust the output torque of the engine, described
The revolving speed of first motor and torque, otherwise end period power distributes, and when being less than the speed upper bound, continues to adjust
Otherwise the output torque of the engine, the revolving speed of the first motor and torque enter second cruising phase.
8. the periodical distributing means for power supply of motorized vehicle cruise control according to claim 7, which is characterized in that institute
State control module further include:
Second adjusts unit, and the revolving speed and torque for adjusting the first motor are so that the revolving speed of the engine is maintained at institute
It states in optimum efficiency region；
Second judgment unit is worked as judging whether the current driving mileage is less than the traveling total kilometrage, and described in judgement
Whether preceding speed is greater than the speed lower bound；
Second control unit, for continuing the revolving speed and the torque that adjust the first motor when being less than the traveling total kilometrage,
Otherwise end period power distributes, and when being greater than the speed lower bound, continue to adjust the revolving speed of the first motor with
Otherwise torque enters the third cruising phase.
9. the periodical distributing means for power supply of motorized vehicle cruise control according to claim 7 or 8, feature exist
In the control module further include:
Third adjusts unit, and the revolving speed and torque for adjusting the first motor are so that the revolving speed of the engine is maintained at institute
It states in optimum efficiency region, and the driving moment equal with the resistance torque of vehicle is provided by second motor；
Third judging unit for judging whether the current driving mileage is less than the traveling total kilometrage, and judges current electricity
Whether the remaining capacity in pond is greater than the remaining capacity lower bound of preset initial cells；
Third control unit, for continuing the revolving speed and the torque that adjust the first motor when being less than the traveling total kilometrage,
And the driving moment is provided by second motor, otherwise end period power distributes, and preset initial being greater than
When the remaining capacity lower bound of battery, continue the revolving speed and the torque that adjust the first motor, and provide institute by second motor
Driving moment is stated, first cruising phase is otherwise again introduced into.
10. a kind of motorized vehicle characterized by comprising
Dynamical system, the dynamical system include engine, first motor and the second motor；With
The periodical distributing means for power supply of motorized vehicle cruise control as claim in any one of claims 6-9.
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| CN107985298A (en) * | 2017-11-24 | 2018-05-04 | 中国汽车工程研究院股份有限公司 | Mode switching method, device and the vehicle of the economy cruise of motorized vehicle |
| CN114030457B (en) * | 2022-01-07 | 2022-03-15 | 北京航空航天大学 | Dual-threshold working mode switching control method for series-parallel hybrid power system |
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| JP2013241129A (en) * | 2012-05-22 | 2013-12-05 | Honda Motor Co Ltd | Electric power generation control device for hybrid vehicle |
| GB2525102B (en) * | 2012-08-16 | 2016-03-02 | Jaguar Land Rover Ltd | Vehicle speed control system |
| CN106740814B (en) * | 2016-12-06 | 2019-01-01 | 科力远混合动力技术有限公司 | The constant-speed-cruise control method and device of hybrid power shunting hybrid vehicle |
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