CN107867174A - It can adapt to the hybrid power system and its control method of complicated operating condition - Google Patents
It can adapt to the hybrid power system and its control method of complicated operating condition Download PDFInfo
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- CN107867174A CN107867174A CN201711097787.8A CN201711097787A CN107867174A CN 107867174 A CN107867174 A CN 107867174A CN 201711097787 A CN201711097787 A CN 201711097787A CN 107867174 A CN107867174 A CN 107867174A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
-
- 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
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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
- 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 a kind of hybrid power system based on AMT, including：Motor, engine and AMT modules, the AMT modules and the transmission axis connection of motor and vehicle；Also include：Acquisition module, for gathering motor in each gear section exports or engine and the peak torque of motor coupling operational output, and the dump energy of the aperture of collection throttle, the speed of vehicle and battery in real time；The AMT modules include：Computing module, current acceleration is calculated for the aperture according to the throttle gathered in real time and the mapping table of peak torque and rotating speed；Handover module, for the dump energy of the acceleration rate threshold according to setting, present speed, current acceleration and battery, shifted gears.The invention further relates to a kind of control method of the hybrid power system based on AMT, the dump energy that can combine current acceleration, current vehicle speed and battery switches gear so that vehicle can adapt to the operating condition of complexity.
Description
This case be with Application No. 201610039649.3, it is applying date 2016-01-21, entitled《It is mixed based on AMT
Close dynamical system and its control method》Patent application be female case divisional application.
Technical field
The present invention relates to hybrid power system, more particularly to a kind of hybrid power system and its control method based on AMT.
Background technology
With the environmental pollution of getting worse, new-energy automobile is constantly promoted.New energy bus is no longer single
Pure operation also begins to be widely applied new energy bus in a line or tier 2 cities, three line cities and part small towns.
The operating condition of bus becomes more complicated variation, and the hybrid power system of traditional straight drive can not meet this
Diversified public transport operating mode.The major part of existing AMT hybrid power systems uses rotating speed and throttle to combine changing for judgement
Gear strategy, for example, Chinese patent application, which discloses CN105197006A, discloses a kind of pure electric drive starting control of hybrid vehicle
Method processed, when vehicle carries out pure electronic starting, control motor carries out speed closed loop control, it is desirable to the rotating speed of motor
Rotating speed of target is maintained at, controls the clutch in gearbox slowly to combine, controls vehicle slow by gearbox by motor
Starting, vehicle travel into crawling operating mode；When system is during crawling traveling, driver step on the gas acceleration when, control
Motor exits speed closed loop control, moment of torsion control is carried out to motor, the moment of torsion that motor performs is motor
Actual torque under crawling operating mode is superimposed with operator demand's moment of torsion.But present operating condition is complicated, such as on slope
Need to meet certain acceleration on road, back axle needs to export larger moment of torsion, and gearshift too late may cause the acceleration of vehicle
Moment of torsion is inadequate, different climbable gradients, and the resistance suffered by vehicle is different.Thus, rotating speed and throttle combine the Shifting judged
The operating condition demand of complexity can not have been adapted to, can not also meet the requirement of high rate of economizing gasoline.
In addition, existing carrying AMT hybrid power is restricted the general matching scheme for having two kinds of power supplys by cost, one
Kind is simple matching super capacitor, and a kind of is a small amount of high-multiplying-power battery of matching.The AMT hybrid power systems of matching capacitance,
The recovery ability of power supply is poor；The a small amount of powerful battery of matching, charge-discharge magnification is limited, and efficiency for charge-discharge is low.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of hybrid power system and its control method based on AMT,
It disclosure satisfy that high charge-discharge efficiencies and adapt to complicated operating condition.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of hybrid power system based on AMT, including：Motor, engine and AMT modules, the AMT modules
With the transmission axis connection of motor and vehicle；Also include：
Acquisition module, for gathering that motor in each gear section exports or engine and motor coupling operational
Output or engine output peak torque, and the residue electricity of the aperture of collection throttle, the speed of vehicle and battery in real time
Amount；
The AMT modules include：
Computing module, calculated for the aperture according to the throttle gathered in real time and the mapping table of peak torque and rotating speed
Current acceleration；
Handover module, the residue electricity for the acceleration rate threshold according to setting, present speed, current acceleration and battery
Amount, is shifted gears.
The beneficial effect of hybrid power system of the invention based on AMT is：Acquisition module is gathered in each gear section
Peak torque, so as to which computing module can obtain car according to the mapping table and real-time accelerator open degree of peak torque and rotating speed
Real-time current acceleration, handover module according to set acceleration rate threshold, current acceleration present speed and
Battery dump energy, you can selection uses pure electric drive, pure engine driving or engine and motor coupling driving, with
And whether continue to accelerate or whether switch to another gear.So that vehicle can adapt to the operating condition of complexity, efficiently, save
Can ground operation.
A kind of control method of the hybrid power system based on AMT, including：
Gather that motor in each gear section exports or that engine exports with motor coupling operational or start
The peak torque of machine output, establish the mapping table of peak torque and rotating speed；
The dump energy of the aperture of collection throttle, the speed of vehicle and battery in real time；
Current acceleration is calculated according to the aperture of the throttle gathered in real time and the mapping table；
According to the dump energy of the acceleration rate threshold of setting, present speed, current acceleration and battery, shifted gears.
The beneficial effect of the control method of hybrid power system of the invention based on AMT is：According to engine and its electricity
The external characteristics of machine, calculate in each gear section, what motor or engine and motor coupling operational can export
Peak torque, max. output torque and the mapping tables of data of rotating speed are made, and gather the aperture of throttle in real time, according to opening for throttle
Degree, the current acceleration of vehicle and present speed, the driving torque of Current vehicle needs is calculated, the maximum further according to more than
The tables of data of output torque and rotating speed, the constraint as gearshift.It can be calculated according to accelerator open degree, peak torque and rotating speed
Real-time current acceleration is obtained, is remained according to the acceleration rate threshold, current acceleration present speed and the battery that have set
Remaining electricity, selecting optimal gearshift scheme so that vehicle operation enables adaptation to the operating condition of complexity in optimum state,
Efficiently, energy-saving operation.
Brief description of the drawings
Fig. 1 is the structure chart of the hybrid power system based on AMT of the embodiment of the present invention one；
Fig. 2 is the handover module structure chart of the hybrid power system based on AMT of the embodiment of the present invention one；
Fig. 3 is the acquisition module structure chart of the hybrid power system based on AMT of the embodiment of the present invention one；
Fig. 4 is the control method flow chart of the hybrid power system based on AMT of the embodiment of the present invention two；
Fig. 5 is the hybrid power system based on AMT of the hybrid power system based on AMT of the embodiment of the present invention two
10.5 meters of hybrid-power bus control method flow charts；
Fig. 6 is the acceleration of the prior art of the control method of the hybrid power system based on AMT of the embodiment of the present invention two
Result of the test schematic diagram；
Fig. 7 is that bus shown in the table 1 of the control method of the hybrid power system based on AMT of the embodiment of the present invention two adds
Fast result of the test schematic diagram.
Label declaration：
1st, motor；2nd, engine；3rd, AMT modules；31st, computing module；32nd, handover module；321st, multilevel iudge mould
Block；322nd, control module；4th, acquisition module；41st, moment of torsion acquisition module；42nd, accelerator open degree acquisition module；43rd, rotating speed collection mould
Block；44th, the first computing module；45th, electric quantity acquisition module；5th, BSG generators；6th, motor controller；7th, the integrated control of vehicle
Device processed；8th, battery.
Embodiment
To describe the technology contents of the present invention, construction feature, the objects and the effects in detail, below in conjunction with embodiment
And accompanying drawing is coordinated to be explained in detail.
The design of most critical of the present invention is：Computing module is according to the accelerator open degree and peak torque that gather in real time and transmission
Mapping table calculate current acceleration, handover module is according to current acceleration, default acceleration rate threshold, present speed and battery
Dump energy shifted gears.
Explanation of technical terms of the present invention：
Fig. 1 to Fig. 3 is referred to,
A kind of hybrid power system based on AMT, including：Motor 1, engine 2 and AMT modules 3, the AMT
Module 3 and the transmission axis connection of motor 1 and vehicle；Also include：
Acquisition module 4, coupled for gathering motor 1 in each gear section exports or engine 2 with motor 1
Work the peak torque exported, and the dump energy of the aperture of collection throttle, the speed of vehicle and battery in real time；
The AMT modules 3 include：
Computing module 31, calculated for the aperture according to the throttle gathered in real time and the mapping table of peak torque and rotating speed
Go out current acceleration；
Handover module 32, the residue for the acceleration rate threshold according to setting, present speed, current acceleration and battery
Electricity, shifted gears.
It was found from foregoing description, the beneficial effect of the hybrid power system of the invention based on AMT is：Acquisition module 4 is adopted
Collect the peak torque in each gear section, so as to which computing module 31 can according to the mapping table of peak torque and rotating speed and in real time
Accelerator open degree, obtain the real-time current acceleration of vehicle, handover module 32 is according to the acceleration rate threshold set, current
Acceleration present speed and battery dump energy, you can selection using pure electric drive, pure engine driving or engine and
Motor coupling driving, and whether continue to accelerate or whether switch to another gear.So that vehicle can adapt to again
Miscellaneous operating condition, efficient, energy-saving operation.
Further, the handover module 32 includes：
Multilevel iudge module 321, for comparing the current residual electricity of current acceleration and acceleration rate threshold and battery
And power threshold；The power threshold includes the first power threshold and the second power threshold, and the first power threshold is more than the second electricity
Measure threshold value；
Control module 322, the dump energy that acceleration rate threshold and battery are more than for current acceleration are more than the first electricity
During threshold value, engine 2 is closed, the driving vehicle of motor 1 is accelerated and gear shift；Current acceleration be more than acceleration rate threshold and
When the dump energy of battery is less than the first power threshold and is more than the second power threshold, start engine 2, according to engine load
Control engine 2 and the coupling driving vehicle of motor 1 is accelerated and gear shift；Current acceleration is less than acceleration rate threshold or electricity
When the dump energy in pond is less than the second power threshold, motor 1 is closed, starts engine 2 and drives vehicle to be accelerated and changed
Shelves.
It was found from foregoing description, multilevel iudge module 321 compares current acceleration and acceleration rate threshold, the current of battery remain
Remaining electricity and power threshold, so as to which control module 322 controls vehicle to be changed according to the comparative result of multilevel iudge module 321
Gear, and control the shutdown or startup of engine 2 and the shutdown or startup of motor 1.
Further, the acquisition module 4 includes：
Moment of torsion acquisition module 41, work is coupled for gathering motor 1, engine 2 or engine 2 and motor 1
Make the peak torque exported；
Accelerator open degree acquisition module 42, for gathering the aperture of throttle；
Rotating speed acquisition module 43, for gathering back axle rotating speed；First computing module 44, for calculating car according to back axle rotating speed
Speed；
Electric quantity acquisition module 45, for gathering the dump energy of battery.
It is real by the moment of torsion of the collection vehicle of moment of torsion acquisition module 41, accelerator open degree acquisition module 42 it was found from foregoing description
When gather throttle aperture, rotating speed acquisition module 43 gather after preceding rotating speed so as to computing module 31 according to back axle rotating speed calculate vehicle
Speed, without adding other sensors again.
Further, in addition to：BSG generators 5 and motor controller 6, BSG generators 5 control engine 2 to open
Dynamic or closing, motor controller 6 control motor 1 and BSG generators 5 to start or close.
It was found from foregoing description, startup or the pass of engine or motor 1 can be controlled by motor controller 6
Close, realization is uniformly controlled.
Further, in addition to：Vehicle integrated manipulator 7, the acquisition module 4 are built in vehicle integrated manipulator 7,
The vehicle integrated manipulator 7 is connected with motor controller 6.
It was found from foregoing description, vehicle integrated manipulator 7 controls acquisition module 4 and motor controller 6, realizes to whole
The control of individual vehicle.
Fig. 4 to Fig. 7 is referred to,
A kind of control method of the hybrid power system based on AMT, including：
It is that motor 1 exports in S1, each gear section of collection or that engine 2 exports with the coupling operational of motor 1
Or the peak torque of engine output, establish the mapping table of peak torque and rotating speed；
The dump energy of S2, the in real time aperture of collection throttle, the speed of vehicle and battery；
The aperture for the throttle that S3, basis gather in real time and the mapping table calculate current acceleration；
S4, the dump energy according to the acceleration rate threshold of setting, present speed, current acceleration and battery, are changed
Gear.
The beneficial effect of the control method of hybrid power system of the invention based on AMT is：According to engine and its electricity
The external characteristics of machine, calculate in each gear section, motor or engine and motor coupling operational or start function
The peak torque enough exported, max. output torque and the mapping tables of data of rotating speed are made, and gather the aperture of throttle in real time, according to
The aperture of throttle, the current acceleration of vehicle and present speed, calculate Current vehicle needs driving torque, further according to
On max. output torque and rotating speed tables of data, the constraint as gearshift.According to accelerator open degree, peak torque and rotating speed
Real-time current acceleration can be calculated, according to set acceleration rate threshold, current acceleration present speed with
And battery dump energy, select optimal gearshift scheme so that vehicle operation enables adaptation to the fortune of complexity in optimum state
Row operating mode, efficient, energy-saving operation.
Further, when current acceleration is more than the first power threshold more than the dump energy of acceleration rate threshold and battery,
Engine is closed, motor driving vehicle is accelerated and shifted gears；Current acceleration is more than the surplus of acceleration rate threshold and battery
When remaining electricity is less than the first power threshold and is more than the second power threshold, start engine and motor, born according to engine
Lotus controls engine and motor coupling driving vehicle to be accelerated and shifted gears；Current acceleration is less than acceleration rate threshold or electricity
When the dump energy in pond is less than the second power threshold, motor is closed, starts motor-powered vehicle and is accelerated and shifted gears；
First power threshold is more than the second power threshold.
It was found from foregoing description, by comparing current acceleration and acceleration rate threshold, the current residual electricity of battery and electricity
Threshold value is measured, so as to control vehicle to be shifted gears and switch drive pattern.
Further, the acceleration rate threshold calculating being averaged according to vehicle launch in preset time period to setting speed
Acceleration determines.
It was found from foregoing description, determine to accelerate by the average acceleration of vehicle launch in preset time period to setting speed
Threshold value is spent, so as to which acceleration rate threshold disclosure satisfy that certain rate request.
Further, the speed for gathering the vehicle in real time is specially：Collection back axle rotating speed in real time, car is calculated according to rotating speed
Speed.
It was found from foregoing description, the speed of collection vehicle is carried out without adding other sensors again.
Fig. 1 to Fig. 3 is refer to, embodiments of the invention one are：
A kind of hybrid power system based on AMT, including：Motor 1, engine 2, AMT modules 3, BSG generators 5,
Motor controller 6 and vehicle integrated manipulator 7, acquisition module 4 built in the vehicle integrated manipulator 7, the vehicle
Integrated manipulator 7 is connected with motor controller 6, and the motor controller 6 is electric with BSG generators 5 and driving respectively
Machine 1 is connected, and the BSG generators 5 are connected with engine 2, is powered for engine 2, the AMT modules 3 and motor 1 and
The transmission axis connection of vehicle.The BSG generators 5 are used to control engine 2 to start or close, and motor controller 6 controls
Motor 1 and BSG generators 5 start or closed.Preferably, in addition to powerful battery 8, the powerful battery 8
Powered for vehicle integrated manipulator 7, motor controller 6, BSG generators 5, motor 1 and AMT modules 3.
During the acquisition module 4 exports for motor 1 when gathering pure electronic in each gear section or hybrid power
Engine and the peak torque of the output of the coupling operational of motor 1 or pure engine output, and opening for throttle is gathered in real time
The dump energy of degree, the speed of vehicle and battery 8；Including：
Moment of torsion acquisition module 41, start when motor 1, pure engine 2 or hybrid power during for gathering pure electronic
Machine 2 and the peak torque of the coupling operational of motor 1 output；
Accelerator open degree acquisition module 42, for gathering the aperture of throttle；
Rotating speed acquisition module 43, for gathering back axle rotating speed；First computing module 44, for calculating car according to back axle rotating speed
Speed；
Electric quantity acquisition module 45, for gathering the dump energy of battery 8.
The AMT modules 3 include：
Computing module 31, calculated for the aperture according to the throttle gathered in real time and the mapping table of peak torque and rotating speed
Go out current acceleration；
Handover module 32, the residue for the acceleration rate threshold according to setting, present speed, current acceleration and battery
Electricity, shifted gears.Preferably, the settable maximum of the acceleration rate threshold is 0.914 ㎡/s.Specifically, the switching
Module 32 includes：
Multilevel iudge module 321, for comparing the current residual electricity of current acceleration and acceleration rate threshold and battery
And power threshold；The power threshold includes the first power threshold and the second power threshold, and the first power threshold is more than the second electricity
Measure threshold value；Preferably, the settable scope of first power threshold is the 55%~80% of battery total electricity, second electricity
It is the 30%~50% of battery total electricity to measure the settable scope of threshold value.
Control module 322, the dump energy that acceleration rate threshold and battery are more than for current acceleration are more than the first electricity
During threshold value, engine 2 is closed, the driving vehicle of motor 1 is accelerated and gear shift；Current acceleration be more than acceleration rate threshold and
When the dump energy of battery is less than the first power threshold and is more than the second power threshold, start engine 2 and motor 1, root
Engine 2 is controlled according to engine load and the coupling driving vehicle of motor 1 is accelerated and gear shift；Current acceleration, which is less than, to be added
When the dump energy of threshold speed or battery is less than the second power threshold, motor 1 is closed, starts engine 2 and drives vehicle
Accelerated and gear shift.When battery electric quantity is low, it can be utilized when engine load is low, while motor-powered vehicle
Power more than needed drives motor 1 to charge battery.It so can not only meet battery in life-span and the area of efficiency high
Interior work, moreover it is possible to the effective rate of economizing gasoline for improving vehicle.
Fig. 4 to Fig. 7 is refer to, real-time example two of the invention is the hybrid power based on AMT in a kind of cooperation embodiment one
The control method used of system, including：
Acceleration rate threshold is determined according to the average acceleration of vehicle launch in preset time period to setting speed；It is described default
Period is determined by the performance of vehicle, for example, for 10.5 meters of hybrid-power bus, it is desirable to which car 0-50km/h accelerates
Time is 25s, then preset time period is 25s；
Acquisition module 4 gathers motor 1 in each gear section exports or engine and the coupling operational of motor 1 is defeated
The peak torque of go out or engine output, establish the mapping table of peak torque and rotating speed；The aperture of collection throttle, vehicle in real time
Speed and battery dump energy, calculate Current vehicle needs driving torque, further according to more than max. output torque
With the tables of data of rotating speed, the constraint as gearshift；Preferably, the speed of real-time collection vehicle is specially：In real time after collection
Bridge rotating speed, the speed of vehicle is calculated according to rotating speed.
Computing module 31 calculates current acceleration according to the aperture and the mapping table of the throttle gathered in real time；
Handover module 32 according to the dump energy of the acceleration rate threshold of setting, present speed, current acceleration and battery,
Shifted gears；Specifically,
If current acceleration is more than the dump energy of acceleration rate threshold and battery more than the first power threshold, engine
To close, motor starts, and is accelerated into pure electric drive mode driving vehicle, when speed reaches preset vehicle speed, switching
A supreme gear；If current acceleration below the second power threshold, is sent out less than the dump energy of acceleration rate threshold or battery
Motivation starts, and motor is closed, into pure engine drive mode, wherein the first power threshold is more than the second power threshold,
When speed reaches preset vehicle speed, a gear is switched to；If current acceleration is more than the residue electricity of acceleration rate threshold and battery
Amount is between the second power threshold and the first power threshold, engine start, and motor starts, and is controlled according to engine load
Engine and motor coupling, when speed reaches preset vehicle speed, switch to a gear.For example, when speed reaches 20km/
During h, two gears are switched to, three gears are switched to when speed reaches 31km/h；If it is not, explanation road conditions are bad, do not shift gears.Further
, foregoing describes only situation about up shifting gears, and down shifts gears also similar, when speed is reduced to below preset vehicle speed, then switches
To next gear.Preferably, pure electric drive is selected to start during vehicle launch.Preferably, if motor or engine are previous
Step has been started up, then starts motor in next step or start engine to keep the starting state of motor or guarantor
Hold the starting state of engine.For example, current acceleration is more than acceleration rate threshold and dump energy in the first power threshold and the
When between two power thresholds, start engine and motor, motor and engine coupling driving vehicle accelerate to reach
During 20km/h, two grades are switched to, current acceleration is more than acceleration rate threshold after switching and dump energy is less than the second power threshold
When, start tail-off motor, the engine that starts here is the starting state for keeping engine.
By taking 10.5 meters of hybrid-power bus for applying the hybrid power system based on AMT as an example, the basic ginseng of vehicle
Number is as shown in table 1；
Table 1
Assuming that, it is desirable to the 0-50km/h acceleration time is 25s, the ratio of vehicle demand acceleration rate threshold a=0.55* gas pedals
Example.Then control method is as follows：
The basic process schematic diagram of hybrid power system pattern switching of the present invention and gearshift is illustrated in figure 5, when remaining electricity
When amount soc is more than the first power threshold 60%, pure electric drive mode is switched to, tail-off, 1 one grades of startings of motor are extremely
Speed is more than 13km/h；Judge whether that current acceleration a1 is more than acceleration rate threshold a and dump energy soc is more than the first electricity threshold
Value 60%；If so, accelerating to 20km/h, and shift to two grades；If it is not, judge whether that dump energy soc is more than the second power threshold
45% and a1 is more than acceleration rate threshold a, if so, then switching to hybrid power drive pattern, starts engine, is born according to engine
Lotus controls engine and motor 1 to couple, and accelerates to 20km/h, and shifts to two grades, if it is not, then switching to pure engine driving
Pattern, start engine, motor is closed, and accelerates to 20km/h, and shift to two grades；Judge whether that current acceleration a2 is more than
Acceleration rate threshold a and dump energy is more than the first power threshold 60%；If so, then closing engine, it is (current to start motor
When face engine has been closed mode, state is kept the engine off, when above motor has been starting state, is kept
The starting state of motor), 31km/h is accelerated to, and shift to third gear；If it is not, judge whether that dump energy soc is more than second
Power threshold 45% and a2 is more than acceleration rate threshold a, if so, then switching to hybrid power drive pattern, start engine, according to
Engine load controls engine and motor 1 to couple, and accelerates to 20km/h, and shifts to third gear, if it is not, then switching to pure hair
Motivation drive pattern, start engine, motor is closed, and accelerates to 20km/h, and shift to third gear；Judge whether to work as preacceleration
Degree a3 is more than acceleration rate threshold a and dump energy is more than the first power threshold 60%；If so, closing engine, start driving electricity
Machine (when above engine has been closed mode, keeps the engine off state, when above motor has been to start shape
State, keep the starting state of motor), 40km/h is accelerated to, and start engine, switch to four gears；If it is not, judge whether
Dump energy soc is more than the second power threshold 45% and a3 is more than acceleration rate threshold a, if so, then switching to hybrid power driving
Pattern, start engine, control engine and motor 1 to couple according to engine load, accelerate to 20km/h, and shift to four
Shelves, if it is not, then switching to pure engine drive mode, start engine, motor is closed, and accelerates to 20km/h, and shift to
Fourth gear.
Fig. 5 show a complete accelerator, but actually vehicle is not always all in Accelerating running, by road
Condition influences, and the acceleration and speed of vehicle are all constantly changing, and therefore, system is with Fixed Time Interval to vehicle current acceleration
Judged with dump energy, to switch to corresponding mode of operation in time, adapt to different road conditions.That is, in reality
During the road driving of border, vehicle can toggle according to acceleration and dump energy in Three models, as long as acceleration and residue
Electricity meets corresponding modes, and system is just operated in corresponding pattern, can not only preferably adapt to road conditions, also can more preferable maintenance cart
Performance.Vehicle shift is also similarly, only top grade to be changed to from low grade shown in Fig. 5, in actual motion, when speed will arrive default speed
Below degree, then low one grade will be switched to.The time interval is 500ms~5s, it is preferred that time interval is set into 1s.
Illustrate as shown in Figure 6 and Figure 7 for bus shown in table 1 of the present invention and the accelerated test comparative result of prior art
Figure, result as shown in Figure 6 is obtained through experiment：Throttle is floored acceleration, accelerates to 62km/h, and the acceleration time shortens 1.5s.
In summary, hybrid power system and control method provided by the invention based on AMT, are filled using high-multiplying-power battery
Electricity, so as to lengthen the pure electric operation time of vehicle.Acquisition module is built in vehicle integrated manipulator, so as to vehicle collection
Control this acquisition module to gather motor in each gear section exports or engine into controller and couple work with motor
Make the peak torque exported, establish the mapping table of peak torque and rotating speed；Computing module in AMT modules according to gathering in real time
The mapping table of accelerator open degree, peak torque and rotating speed calculates current acceleration；Handover module in AMT modules adds according to current
Speed, acceleration rate threshold, the dump energy control vehicle of present speed and battery are shifted gears, and integrate motor control control driving
Motor or BSG generator shutdown or startups, further by BSG generator controls tail-off or opening, choose whether to make
With engine and motor coupling driving.Enable adaptation to the operating condition of complexity, efficient, energy-saving operation.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (8)
1. a kind of hybrid power system that can adapt to complicated operating condition, including：Motor, engine and AMT modules,
The AMT modules and the transmission axis connection of motor and vehicle；Characterized in that, also include：
The AMT modules include：
Computing module, for the peak torque and rotating speed exported in the aperture according to the throttle gathered in real time and each gear section
Mapping table calculate current acceleration；
Handover module, for the dump energy of the acceleration rate threshold according to setting, present speed, current acceleration and battery,
Shifted gears；
Also include：BSG generators and motor controller, BSG generator control engine on or off, integrate motor
Controller controls motor and BSG generators to start or close.
2. the hybrid power system according to claim 1 that can adapt to complicated operating condition, it is characterised in that
The handover module includes：
Multilevel iudge module, for comparing the current residual electricity and electricity threshold of current acceleration and acceleration rate threshold and battery
Value；The power threshold includes the first power threshold and the second power threshold, and the first power threshold is more than the second power threshold；
Control module, when being more than the first power threshold more than the dump energy of acceleration rate threshold and battery for current acceleration,
Engine is closed, motor driving vehicle is accelerated and gear shift；Current acceleration is more than the surplus of acceleration rate threshold and battery
When remaining electricity is less than the first power threshold and is more than the second power threshold, start engine, started according to engine load control
Machine and motor coupling driving vehicle is accelerated and gear shift；Current acceleration is less than the residue electricity of acceleration rate threshold or battery
When amount is less than the second power threshold, motor is closed, startup motor-powered vehicle is accelerated and gear shift.
3. the hybrid power system according to claim 1 that can adapt to complicated operating condition, it is characterised in that also include
Acquisition module, the acquisition module include：
Moment of torsion acquisition module, for gathering motor, engine or engine and the output of motor coupling operational most
High pulling torque；
Accelerator open degree acquisition module, for gathering the aperture of throttle；
Rotating speed acquisition module, for gathering back axle rotating speed；First computing module, for calculating the speed of vehicle according to back axle rotating speed
Degree；
Electric quantity acquisition module, for gathering the dump energy of battery.
4. the hybrid power system according to claim 1 that can adapt to complicated operating condition, it is characterised in that also wrap
Include：Vehicle integrated manipulator, the acquisition module are built in vehicle integrated manipulator, and the vehicle integrated manipulator is with integrating
Electric machine controller connects.
A kind of 5. control method for the hybrid power system that can adapt to complicated operating condition, it is characterised in that including：
Establish the mapping table of the peak torque exported in each gear section and rotating speed；
Current acceleration is calculated according to the aperture of the throttle gathered in real time and the mapping table；
According to the dump energy of the acceleration rate threshold of setting, present speed, current acceleration and battery, shifted gears；
BSG generator control engine on or off, motor controller control motor and BSG generators start or
Close.
6. the control method of the hybrid power system according to claim 5 that can adapt to complicated operating condition, its feature
It is, when current acceleration is more than the first power threshold more than the dump energy of acceleration rate threshold and battery, closes engine, drive
Dynamic motor-driven vehicle is accelerated and gear shift；Current acceleration is more than acceleration rate threshold and the dump energy of battery is less than first
Power threshold and when being more than the second power threshold, starts engine, engine and motor coupling is controlled according to engine load
Conjunction driving vehicle is accelerated and gear shift；Current acceleration is less than acceleration rate threshold or the dump energy of battery is less than the second electricity
During threshold value, motor is closed, startup motor-powered vehicle is accelerated and gear shift；First power threshold is more than second
Power threshold.
7. the control method of the hybrid power system according to claim 5 that can adapt to complicated operating condition, its feature
It is, the acceleration rate threshold calculates can be according to the average acceleration of vehicle launch in preset time period to setting speed come really
It is fixed.
8. base according to claim 5 can adapt to the control method of the hybrid power system of complicated operating condition, it is special
Sign is that the speed for gathering the vehicle in real time is specially：Collection back axle rotating speed in real time, the speed of vehicle is calculated according to rotating speed.
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