CN109878505A - A kind of control method of hybrid power system switching - Google Patents
A kind of control method of hybrid power system switching Download PDFInfo
- Publication number
- CN109878505A CN109878505A CN201910180483.0A CN201910180483A CN109878505A CN 109878505 A CN109878505 A CN 109878505A CN 201910180483 A CN201910180483 A CN 201910180483A CN 109878505 A CN109878505 A CN 109878505A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- hybrid power
- power system
- control method
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of control methods of hybrid power system switching, processing including the judgement to user's driving mode, to the shift control of the gearbox of two drive systems, to speed and accelerator pedal signal, the input signal for receiving external impetus system, carries out the judgement of external condition；This programme, engine can work under conditions of motor is not able to satisfy driving force, motor can drive running car in urban district or while running at a low speed, preferably improve the economy of automobile, meet automobile in urban district low speed, and reduce oil consumption when frequently braking starting-up process, engine and motor can carry out smooth switching, it is simultaneously also after preventing engine mission clutch from separating, gearbox idle running is to cause to beat tooth.
Description
Technical field
The present invention relates to the controls that automobile engine idle speed control technical field more particularly to a kind of hybrid power system switch
Method processed.
Background technique
In face of the dual-pressure of energy conservation and environmental protection, auto industry must just greatly develop new energy vapour to sustainable development
Vehicle.But the limitation for current battery capacity, the dynamic property and course continuation mileage of pure electric automobile are difficult to meet most of automobiles
The demand of user.In new-energy automobile, the battery cost of pure electric automobile is excessively high, and continuation mileages for one time charging is shorter,
Most area not can solve charging pile problem still；Fuel cell is due to technically still in development phase, cost and reliability
Market expectations can't be reached, therefore, the emphasis direction that new-energy automobile is broken through all is placed on by domestic and international each Main Auto company
On hybrid vehicle.
Nowadays hybrid vehicle is difficult to smooth in engine using very extensive but traditional hybrid vehicle
It is switched over motor, is easy to produce pause and transition in rhythm or melody sense, while after cannot preventing engine mission clutch from separating, gearbox is empty
Turn that dozen tooth is caused to be unfavorable for reducing driving experience there are serious defect.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of hybrid power system proposed is cut
The control method changed.
To achieve the goals above, present invention employs following technical solutions:
The present invention provides a kind of control method of hybrid power system switching, and hybrid power system includes engine and and engine
The power battery of gearbox, rear axle motor and the speed changer to match with motor, supply motor electric energy that match, hybrid power
System further includes entire car controller, and the control method of the hybrid power system switching specifically comprises the following steps:
S1, the judgement to user's driving mode；
S2, the shift control to the gearboxes of two drive systems；
S3, the processing to speed and accelerator pedal signal；
S4, the input signal for receiving external impetus system, carry out the judgement of external condition.
In S1, user selection mode judgement determines user demand；In S2, gearbox gear is adjusted by entire car controller
Position, while carrying out final gear confirmation.
Preferably, in S3, the electric switching time of oil of vehicle is determined, by the judgement of speed and accelerator pedal to guarantee vehicle
The continuity of brake force switching and the ride comfort of vehicle driver.
Preferably, in S4, battery status information and electric machine controller status information are received, as whether can switching
Precondition guarantees the smooth of switching.
Preferably, the entire car controller needs to receive the CAN message of rear axle electric system, vehicle mode selection switchs
CAN message, vehicle speed information, battery capacity and information of voltage, the transmission information to match with engine.
Preferably, the entire car controller needs to judge whole vehicle state, while judging whether electric drive system is normal.
Preferably, the speed changer to match with motor includes automatic gearshift, the gearbox to match with engine
Containing AMT mechanism, power battery has ego state detection function.
Preferably, in S3, the processing to speed and accelerator pedal signal includes: front drive transmission case actual gear and target
Gear information, rear-guard gear and actual gear information are believed by the user demand mode that user operation mode selection switch obtains
The practically necessary car status information that breath, vehicle vehicle speed information in this case and user are reflected by accelerator pedal,
Receive the battery status information that battery feeds back to entire car controller.
A kind of control method of hybrid power system switching provided by the invention, compared with prior art: this programme starts
Machine can work under conditions of motor is not able to satisfy driving force, and motor can drive automobile in urban district or while running at a low speed
Traveling preferably improves the economy of automobile, meets automobile in urban district low speed, and reduces oil when frequently braking starting-up process
Consumption, engine and motor can carry out smooth switching, while be also gearbox after preventing engine mission clutch from separating
Idle running is to cause to beat tooth.
Detailed description of the invention
Fig. 1 is circuit block diagram of the invention；
Fig. 2 is the illustraton of model that the control engine that the present invention is built by tool of MATLAB is switched to motor；
Fig. 3 is the signal processing circuit figure of switching moment speed and accelerator pedal of the invention；
Fig. 4 is the oily drive mode gearbox of the present invention in the final determining circuit diagram being switched under electric drive mode；
Fig. 5 summarizes decision circuitry figure for all conditions of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, it below in conjunction with specific embodiment and says
Bright book attached drawing, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
Embodiment 1
As shown in Figs. 1-5, the control method of a kind of hybrid power system switching, hybrid power system include engine and with start
The power battery of gearbox, rear axle motor and the speed changer to match with motor, supply motor electric energy that machine matches, mixing are dynamic
Force system further includes entire car controller, and the control method of the hybrid power system switching specifically comprises the following steps:
S1, the judgement to user's driving mode；
S2, the shift control to the gearboxes of two drive systems；
S3, the processing to speed and accelerator pedal signal；
S4, the input signal for receiving external impetus system, carry out the judgement of external condition.
Further, in S1, user selection mode judgement determines user demand；In S2, pass through entire car controller tune
Whole gearbox gear, while carrying out final gear confirmation.
Further, in S3, the electric switching time of oil of vehicle is determined, by the judgement of speed and accelerator pedal to guarantee
The continuity of vehicle braking force switching and the ride comfort of vehicle driver.
Further, in S4, battery status information and electric machine controller status information are received, as whether can switching
Precondition, guarantee switching it is smooth.
Further, the entire car controller needs to receive the CAN message of rear axle electric system, vehicle mode selection switch
CAN message, vehicle speed information, battery capacity and information of voltage, the transmission information that matches with engine.
Further, just whether the entire car controller needs to judge whole vehicle state, while judging electric drive system
Often.
Further, the speed changer to match with motor includes automatic gearshift, the speed change to match with engine
Case contains AMT mechanism, and power battery has ego state detection function.
Further, in S3, the processing to speed and accelerator pedal signal includes: front drive transmission case actual gear and mesh
Mark gear information, rear-guard gear and actual gear information, the user demand mode obtained by user operation mode selection switch
Information, vehicle vehicle speed information in this case and user are believed by the practically necessary vehicle-state that accelerator pedal reflects
Breath receives the battery status information that battery feeds back to entire car controller.
It is specifically described below according to concrete scheme:
Before explanation, it is to be understood that amount have: GR_NOW actual gear, GR_AMT target gear, FD_Act_Num rear-guard are practical
Gear, FD_Tar_Num rear-guard target gear, sysSt vehicle current state (dynamic property or economy), ModeChoose vehicle
Model selection (pure electricity or mixed dynamic), VS actual vehicle speed, ACCPED accelerator pedal, the practical electricity of BatSOC battery, V_BATT
Cell voltage, the state of AMT_STATE gear shift mechanism, this tittle be in order to write it is convenient in Controlling model using writing above
Method, rather than the device or element of indication or suggestion meaning must have specific title, with specific name variable and operation,
Therefore it is not considered as limiting the invention.
It is the model for being switched to motor using MATLAB as the control engine that tool is built as shown in Figure 2, contains in this model
There is receiving module outside three parts signal processing module and three parts.It needs to judge in transmission control module in this model
Whether the actual gear (GR_AMT) of engine mission is equal to target gear (GR_NOW), and target gear will return to sky at this time
Gear, that is to say, that hang neutral gear with the gearbox of Engine Matching, electricity can be significantly reduced when being switched to electricity and driving in this way
Machine is because of energy loss caused by dragging two gearboxes.With the actual gear (FD_Act_ of the matched gearbox of motor driven
Num) (FD_Tar_Num) consistent with target gear, and it is to be switched to electricity according in oil drive that electricity, which drives the target gear of gear, at this time
Speed when drive determines, to ensure that the ride comfort of dynamical system handoff procedure well.
Module 2 as shown in Figure 3 is the signal processing to switching moment speed and accelerator pedal, as long as wherein speed is less than etc.
The speed of work is driven in the electricity that calibration personnel are demarcated, while the accelerator pedal depth that driver is given is less than or equal to calibration personnel
Set electricity drives the tread depths value accelerated, and the vehicle running state condition at this time that is judged as meets switching condition.
Module 3 shown in Fig. 4 is to oily drive mode gearbox in the final determination being switched under electric drive mode, and oil drives gearbox
State (AMT_STATE) at this time for neutral gear or reverse gear as long as meet both condition wherein one just satisfaction
Oily electricity switching condition.
It is that all conditions summarize judgement as shown in Figure 5, after the internal judgment by above three module, then exists
It receives whether battery capacity (BatSOC) signal meets battery capacity minimal protection value condition set by calibration personnel, then divides
Not Jie Shou the battery voltage value (V_BATT) that is fed back of vehicle driving status (SyST), battery management system whether meet battery institute
The battery minimal protection voltage threshold of setting and user pass through user demand information and motor control provided by mode selection switch
Controller state provided by device processed whether drive wherein judging that vehicle driving status will meet in the economy mode by normal information
Power meets electricity and drives drive condition, and user's institute's lectotype is that in summary all conditions are sentenced together under mixed these conditions of dynamic model formula
It is disconnected whether to meet, to judge the opportunity of switching, carries out oily cutting and change.
Wherein module described in Fig. 5 is the prerequisite that oily cutting is changed, and after meeting these conditions, can just enter oil electricity
During switching this, during switching over, the module adjusted in Fig. 2,3,4 by vehicle control unit controls meets
Switching condition does not have sequencing, the only final gearbox with Engine Matching during these switch and judge
Gear be that neutral gear is either reversed gear and to be confirmed, this purpose is that motor drags two gearboxes simultaneously and works in order to prevent,
It is simultaneously also after preventing engine mission clutch from separating, gearbox idle running is to cause to beat tooth.
Therefore this programme, engine can work under conditions of motor is not able to satisfy driving force, and motor can be in city
Area or while running at a low speed, drive running car, preferably improve the economy of automobile, meet automobile in urban district low speed, and reduce
Oil consumption when frequent braking starting-up process, engine and motor can carry out smooth switching, while be also to prevent engine from becoming
After fast case clutch separates, gearbox idle running is to cause to beat tooth.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of control method of hybrid power system switching, which is characterized in that hybrid power system include engine and with hair
The power battery of gearbox, rear axle motor and the speed changer to match with motor, supply motor electric energy that motivation matches, mixing
Dynamical system further includes entire car controller, and the control method of the hybrid power system switching specifically comprises the following steps:
S1, the judgement to user's driving mode；
S2, the shift control to the gearboxes of two drive systems；
S3, the processing to speed and accelerator pedal signal；
S4, the input signal for receiving external impetus system, carry out the judgement of external condition.
2. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: in S1, user
Selection mode judgement determines user demand；In S2, gearbox gear is adjusted by entire car controller, while carrying out final gear
Position confirmation.
3. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: in S3, pass through
The judgement of speed and accelerator pedal determines the electric switching time of the oil of vehicle, to guarantee the continuity and vehicle of vehicle braking force switching
The ride comfort of driver.
4. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: in S4, receive
Battery status information and electric machine controller status information guarantee the smooth of switching as the precondition that whether can switch.
5. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: the full-vehicle control
Device need to receive the CAN message of rear axle electric system, vehicle mode selection switch CAN message, vehicle speed information, battery capacity and
Information of voltage, the transmission information to match with engine.
6. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: the full-vehicle control
Device needs to judge whole vehicle state, while judging whether electric drive system is normal.
7. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: match with motor
Speed changer include automatic gearshift, contain AMT mechanism with the gearbox that engine matches, power battery has self
Status detection function.
8. a kind of control method of hybrid power system switching according to claim 1, it is characterised in that: in S3, to vehicle
The processing of speed and accelerator pedal signal includes: front drive transmission case actual gear and target gear information, rear-guard gear and practical gear
Position information, the user demand pattern information obtained by user operation mode selection switch, the speed of vehicle in this case are believed
The practically necessary car status information that breath and user are reflected by accelerator pedal receives battery and feeds back to entire car controller
Battery status information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180483.0A CN109878505A (en) | 2019-03-11 | 2019-03-11 | A kind of control method of hybrid power system switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180483.0A CN109878505A (en) | 2019-03-11 | 2019-03-11 | A kind of control method of hybrid power system switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109878505A true CN109878505A (en) | 2019-06-14 |
Family
ID=66931600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180483.0A Pending CN109878505A (en) | 2019-03-11 | 2019-03-11 | A kind of control method of hybrid power system switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109878505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901626A (en) * | 2019-12-27 | 2020-03-24 | 衡阳智电客车有限责任公司 | Novel plug-in type oil-electricity hybrid power parallel system and control strategy |
| CN113715803A (en) * | 2020-05-22 | 2021-11-30 | 广州汽车集团股份有限公司 | Controller, control method and medium for vehicle with hybrid coupling system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590802A (en) * | 2009-07-01 | 2009-12-02 | 奇瑞汽车股份有限公司 | A kind of drive system of four-drive hybrid electric vehicle and control method thereof |
| CN101898557A (en) * | 2010-07-27 | 2010-12-01 | 广州汽车集团股份有限公司 | Control method of electric four-wheel drive hybrid vehicle |
| CN102381311A (en) * | 2011-09-27 | 2012-03-21 | 奇瑞汽车股份有限公司 | Four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and system thereof |
| CN102815304A (en) * | 2011-06-10 | 2012-12-12 | 通用汽车环球科技运作有限责任公司 | Hybrid powertrain with operator selectable electric propulsion mode |
| GB2530010A (en) * | 2014-07-31 | 2016-03-16 | Jaguar Land Rover Ltd | Electric drive control |
| CN107628023A (en) * | 2017-10-11 | 2018-01-26 | 奇瑞汽车股份有限公司 | The control method of hybrid power automobile driving system |
| CN108382186A (en) * | 2018-02-09 | 2018-08-10 | 浙江吉利控股集团有限公司 | Series-parallel hybrid electric system and vehicle operation mode decision method |
| CN108382187A (en) * | 2018-03-27 | 2018-08-10 | 中国第汽车股份有限公司 | Double-motor hybrid power system and its control method |
-
2019
- 2019-03-11 CN CN201910180483.0A patent/CN109878505A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590802A (en) * | 2009-07-01 | 2009-12-02 | 奇瑞汽车股份有限公司 | A kind of drive system of four-drive hybrid electric vehicle and control method thereof |
| CN101898557A (en) * | 2010-07-27 | 2010-12-01 | 广州汽车集团股份有限公司 | Control method of electric four-wheel drive hybrid vehicle |
| CN102815304A (en) * | 2011-06-10 | 2012-12-12 | 通用汽车环球科技运作有限责任公司 | Hybrid powertrain with operator selectable electric propulsion mode |
| CN102381311A (en) * | 2011-09-27 | 2012-03-21 | 奇瑞汽车股份有限公司 | Four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and system thereof |
| GB2530010A (en) * | 2014-07-31 | 2016-03-16 | Jaguar Land Rover Ltd | Electric drive control |
| CN107628023A (en) * | 2017-10-11 | 2018-01-26 | 奇瑞汽车股份有限公司 | The control method of hybrid power automobile driving system |
| CN108382186A (en) * | 2018-02-09 | 2018-08-10 | 浙江吉利控股集团有限公司 | Series-parallel hybrid electric system and vehicle operation mode decision method |
| CN108382187A (en) * | 2018-03-27 | 2018-08-10 | 中国第汽车股份有限公司 | Double-motor hybrid power system and its control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901626A (en) * | 2019-12-27 | 2020-03-24 | 衡阳智电客车有限责任公司 | Novel plug-in type oil-electricity hybrid power parallel system and control strategy |
| CN113715803A (en) * | 2020-05-22 | 2021-11-30 | 广州汽车集团股份有限公司 | Controller, control method and medium for vehicle with hybrid coupling system |
| CN113715803B (en) * | 2020-05-22 | 2024-05-10 | 广州汽车集团股份有限公司 | Controller, control method and medium for vehicle with hybrid power coupling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2250060B1 (en) | Control apparatus and method for controlling a hybrid vehicle | |
| EP1255656B1 (en) | A method and a system for controlling the propulsion of a hybrid motor vehicle | |
| EP2371645B1 (en) | Method for actuation the stop & start function in a moving vehicle, especially an industrial or commercial or special vehicle | |
| US8010264B2 (en) | Control device for a hybrid electric vehicle | |
| EP2371674B1 (en) | Power steering system for a vehicle provided with means for actuating the stop & start function in a moving vehicle, especially an industrial or commercial or special vehicle | |
| US20070219045A1 (en) | Control device for a hybrid electric vehicle | |
| EP1839986A1 (en) | Driving mode control | |
| US20080070745A1 (en) | Gear shift control device for a hybrid electric vehicle | |
| US7416511B2 (en) | Gear shift control system of hybrid vehicle | |
| EP2634054B1 (en) | Electric vehicle control apparatus | |
| JP2010143361A (en) | Regenerative braking time gear shift control device for automatic transmission for electric vehicle | |
| WO2015185971A1 (en) | Control device for vehicle | |
| CN105599753A (en) | Control method and system for hybrid vehicle | |
| US20130225367A1 (en) | Method For Setting Shift Points in a Transmission or for Increasing the Torque of an Electric Drive Machine | |
| CN103140400A (en) | Vehicle, control method, and program | |
| CN109878505A (en) | A kind of control method of hybrid power system switching | |
| JP5327350B2 (en) | Shift control device for regenerative braking of automatic transmission for electric vehicle | |
| CN111022631B (en) | Electric automobile, gear shifting control method thereof and driving control device | |
| JP2009180247A (en) | Control device of automatic transmission | |
| CN112977399B (en) | Power control method and device, vehicle control unit and range-extended electric vehicle | |
| KR101976858B1 (en) | Control method for hybrid electric vehicle | |
| CN110155038A (en) | The control method of switching is driven in a kind of oil drive with electricity | |
| CN109094564B (en) | Hybrid power gear shifting control system | |
| CN110462203A (en) | For causing the automatic shutdown of the internal combustion engine of motor vehicle and/or connecting the starting and stopping mechanism of process | |
| CN116443015A (en) | Vehicle mode control system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190614 |