CN109677396A - A kind of active damping method for engine-electric machine coupled system twisting vibration - Google Patents
A kind of active damping method for engine-electric machine coupled system twisting vibration Download PDFInfo
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- CN109677396A CN109677396A CN201811593612.0A CN201811593612A CN109677396A CN 109677396 A CN109677396 A CN 109677396A CN 201811593612 A CN201811593612 A CN 201811593612A CN 109677396 A CN109677396 A CN 109677396A
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- 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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The present invention proposes a kind of active damping method for engine-electric machine coupled system twisting vibration, belongs to field of engine control.This method installs the torque sensor assembly applied to hybrid power engine first；Any time, according to accelerator opening amount signal, entire car controller calculates the comprehensive output torque of dynamical system, engine expectation torque and ISG motor and it is expected torque；It is expected that the difference of torque and reality output torque obtains the damping torque of ISG motor according to engine, is then superimposed to obtain the comprehensive output torque of dynamical system with the expectation torque of ISG motor；Closed-loop control is carried out to comprehensive output torque, the control amount of ISG motor is obtained, realizes active vibration damping.The present invention can reduce dynamical system torque ripple, reduce the twisting vibration of transmission system, reduce transmission system shafting because vibration leads to the risk of fracture.
Description
Technical field
It is especially set out a kind of for the twisting vibration of engine-electric machine coupled system the invention belongs to field of engine control
Active damping method.
Background technique
Piston-mode motor acting has intermittence, and output torque has pulse attribute, and the output torque of fluctuation causes to move
Force system shafting generates twisting vibration.In hybrid power system, engine and motor generate connection, and externally output is dynamic together
Power.The torque responsing speed of motor is fast, is enable to respond quickly the torque command that control strategy is given.This just gives solution torsion vibration
Dynamic problem provides possibility.
The prior art usually realizes damping by two methods.One is increase to turn round between engine and ISG motor
Turn damper, is to reduce vibration by way of physics.It is rigid that the problem of such method, is that torsional vibration damper reduces dynamical system
Degree reduces system responsiveness, may cause to resonate under some frequency.Another method is to reduce the torque variation of ISG motor
Rate reduces vibration in such a way that reduction system responds, however system response is slack-off, can weaken power performance.
Summary of the invention
The purpose of the present invention is the shortcomings to overcome prior art, propose a kind of for engine-electric machine coupled systemes
The active damping method of system twisting vibration.The present invention can reduce dynamical system torque ripple, reduce the twisting vibration of transmission system,
Transmission system shafting is reduced because vibration leads to the risk of fracture.
The present invention proposes that a kind of active damping method for engine-electric machine coupled system twisting vibration, feature exist
In, comprising the following steps:
1) installation is applied to the torque sensor assembly of hybrid power engine；The torque sensor assembly includes coaxial
The output end of the engine and ISG motor of connection, the ISG motor connects load；Between the engine and ISG motor
The first torque-corner acquisition unit is provided in first connecting shaft, for acquire torque value that the engine exports in real time and
The torque value is simultaneously transmitted to the ISG motor by tachometer value；It is provided in the second connecting shaft between ISG motor and load
Second torque-corner acquisition unit, for acquiring the torque value and tachometer value of the output of this torque sensor assembly；The ISG electricity
Machine as an energy storage component and electrical energy drive in a manner of actively improving ISG motor itself revolving speed, torque to engine reality
When the fluctuation of torque value that exports compensate；
Wherein, each torque-corner acquisition unit includes a torque acquisition device and a corner acquisition device；
Each corner acquisition device is set in corresponding connecting shaft, and is rotated with axis is correspondingly connected with；First corner
Acquisition device is used to acquire the angular signal of engine output end, and obtains the real-time of the engine using this angular signal
Tach signal；Second corner acquisition device is used to acquire the angular signal of the ISG motor output end, and is believed using this corner
Number obtain the real-time tach signal of the ISG motor output end；
Each torque acquisition device includes being set in the torque rotating acquisition part for being correspondingly connected on axis and being oppositely arranged
With torque fixed reception part, the torque rotating acquisition part is rotated with axis is correspondingly connected with, and the torque fixed reception part is fixed not
It is dynamic；Wherein, it is provided with changing sensor on the torque rotating acquisition part, for detecting the torque for being correspondingly connected with axis, and should
Torque is converted into the output of torque electric signal；The torque fixed reception part includes fixing piece circuit board, the torque rotating acquisition
Part includes revolving part circuit board, is had on the fixing piece circuit board and the revolving part circuit board described for receiving and processing
The processing unit of torque electric signal；
2) any time, driver trample gas pedal, export accelerator opening amount signal α；Entire car controller is opened according to throttle
Degree signal be calculated by engine and motor unit at the comprehensive output torque T of dynamical systemsys, and calculate separately engine
It is expected that torque TengTorque T it is expected with ISG motorISG,1；
3) in engine end, engine controller it is expected torque T according to engineeng, control the torque of engine reality output
For Teng,real, and it is sent to the first torque acquisition device；
4) it calculates engine and it is expected torque TengWith engine reality output torque Teng,realDifference, obtain ISG motor
Damping torque；Expression formula is as follows:
TISG,2=Teng-Teng,real
5) motor controller control ISG motor exports damping torque TISG,2Torque T it is expected with ISG motorISG,1Superposition
Obtain the comprehensive output torque T of dynamical systemsys,real, and it is sent to the second torque acquisition device；
6) output torque T comprehensive to dynamical systemsysIt carries out closed-loop control and obtains the control amount T of ISG motorISG,3, sent out
Motivation reality output torque is Teng,real, the true output torque of ISG motor is TISG=TISG,1+TISG,2+TISG,3, realize actively
Damping.
The features of the present invention and the utility model has the advantages that
The present invention can reduce dynamical system torque ripple, reduce the twisting vibration of transmission system, reduce transmission system shafting
Because vibration leads to the risk of fracture.It being exported steadily using the achievable engine torque of the present invention, running car is also more steady,
Vehicle body is reduced since torque output bring is unstable.
Detailed description of the invention
Fig. 1 is the overall structure signal of the torque sensor assembly applied to hybrid power engine of the embodiment of the present invention
Figure.
Specific embodiment
The present invention proposes a kind of active damping method for engine-electric machine coupled system twisting vibration, below
It is further described in conjunction with the drawings and the specific embodiments as follows.
The present invention proposes a kind of active damping method for engine-electric machine coupled system twisting vibration, including following
Step:
1) installation is applied to the torque sensor assembly of hybrid power engine；Fig. 1 is the application of one embodiment of the invention
It mainly include coaxially connected engine 100 in the overall structure diagram of the torque sensor assembly of hybrid power engine
With ISG (Intergrated-Starter-Generator, integrate starting/it is generating integrated) motor 200, ISG motor 200
Terminating load 300 is exported, the first torque-is provided in the first connecting shaft 400 between engine 100 and ISG motor 200 and is turned
Angle acquisition unit, for acquiring torque value and tachometer value that engine 100 exports in real time and torque value being transmitted to ISG motor
200；ISG motor 200 actively improves the side of ISG motor itself revolving speed, torque as an energy storage component and by electrical energy drive
Formula compensates the fluctuation for the torque value that engine 100 exports in real time.
It is single that the acquisition of the second torque-corner is provided in the second connecting shaft 500 between ISG motor 200 and load 300
Member is corrected using torque value therein as feedback for acquiring the torque value and tachometer value of the output of this torque sensor assembly
Control to ISG motor 200 is further compensate for the fluctuation of this torque sensor assembly output torque value.
Wherein, each torque-corner acquisition unit includes that a torque acquisition device (distinguishes label 600 as shown in figure 1
Shown in component with 800) and a corner acquisition device (respectively as shown in figure 1 shown in the component of label 700 and 900)；
Each corner acquisition device is set in corresponding connecting shaft, and is rotated with axis is correspondingly connected with；First corner
Acquisition device is used to acquire the angular signal of 100 output end of engine, and obtains turning in real time for engine 100 using this signal
Speed；Second corner acquisition device is used to acquire the angular signal of 200 output end of ISG motor, and is obtained using this signal described
The real-time revolving speed of 200 output end of ISG motor；
Each torque acquisition device includes being set in the torque rotating acquisition part for being correspondingly connected on axis and being oppositely arranged
With torque fixed reception part, the torque rotating acquisition part is rotated with axis is correspondingly connected with, and the torque fixed reception part is fixed not
It is dynamic；Wherein, it is provided with changing sensor on the torque rotating acquisition part, for detecting the torque for being correspondingly connected with axis, and should
Torque is converted into the output of torque electric signal；The torque fixed reception part includes fixing piece circuit board, the torque rotating acquisition
Part includes revolving part circuit board, is had on the fixing piece circuit board and the revolving part circuit board described for receiving and processing
The processing unit of torque electric signal.Specifically, there is first control unit interconnected, first on the fixing piece circuit board
Wireless communication unit and the first power supply unit；There is the second control unit interconnected, second on the revolving part circuit board
Wireless communication unit and the second power supply unit, the second wireless communication unit pass through the first digital analog converter and the changing sensor
It is connected, for receiving and processing the torque electric signal, the torque electric signal is wireless by the first wireless communication unit and second
Communication unit is transmitted to the first control unit, by described in driver control after the first control unit receives and processes
The torque of ISG motor.
2) any time, driver trample gas pedal, export accelerator opening amount signal α；Entire car controller is opened according to throttle
Degree signal be calculated by engine and motor unit at the comprehensive output torque T of dynamical systemsys；Entire car controller passes through energy
Management algorithm/torque allocation algorithm is measured, engine expectation torque T is calculated separatelyengTorque T it is expected with ISG motorISG,1；
3) in engine end, engine controller it is expected torque T according to engineeng, control the torque of engine reality output
For Teng,real, and it is sent to the first torque acquisition device；
4) it calculates engine and it is expected torque TengWith engine reality output torque Teng,realDifference, obtain ISG motor
Damping torque；Expression formula is as follows:
TISG,2=Teng-Teng,real
5) motor controller control ISG motor exports damping torque TISG,2Torque T it is expected with ISG motorISG,1Superposition
Obtain the comprehensive output torque T of dynamical systemsys,real, and it is sent to the second torque acquisition device；
6) output torque T comprehensive to dynamical systemsysIt carries out closed-loop control and obtains the control amount T of ISG motorISG,3；
Finally, after controlling by vibration damping, the reality output torque of engine is Teng,real, the true output of ISG motor
Torque is TISG=TISG,1+TISG,2+TISG,3。
Claims (1)
1. a kind of active damping method for engine-electric machine coupled system twisting vibration, which is characterized in that including following step
It is rapid:
1) installation is applied to the torque sensor assembly of hybrid power engine；The torque sensor assembly includes coaxially connected
Engine and ISG motor, the output end of the ISG motor connects load；First between the engine and ISG motor
The first torque-corner acquisition unit is provided in connecting shaft, for acquiring the torque value and revolving speed that the engine exports in real time
The torque value is simultaneously transmitted to the ISG motor by value；Second is provided in the second connecting shaft between ISG motor and load
Torque-corner acquisition unit, for acquiring the torque value and tachometer value of the output of this torque sensor assembly；The ISG motor is made
It is for an energy storage component and defeated in real time to engine in a manner of actively improving ISG motor itself revolving speed, torque electrical energy drive
The fluctuation of torque value out compensates；
Wherein, each torque-corner acquisition unit includes a torque acquisition device and a corner acquisition device；
Each corner acquisition device is set in corresponding connecting shaft, and is rotated with axis is correspondingly connected with；The acquisition of first corner
Device is used to acquire the angular signal of engine output end, and obtains the real-time revolving speed of the engine using this angular signal
Signal；Second corner acquisition device is used to acquire the angular signal of the ISG motor output end, and is obtained using this angular signal
To the real-time tach signal of the ISG motor output end；
Each torque acquisition device includes being set in be correspondingly connected on axis and the torque rotating acquisition part that is oppositely arranged and turn
Square fixed reception part, the torque rotating acquisition part are rotated with axis is correspondingly connected with, and the torque fixed reception part is fixed；Its
In, it is provided with changing sensor on the torque rotating acquisition part, is turned for detecting the torque for being correspondingly connected with axis, and by the torque
Turn to the output of torque electric signal；The torque fixed reception part includes fixing piece circuit board, and the torque rotating acquisition part includes
Have on revolving part circuit board, the fixing piece circuit board and the revolving part circuit board for receiving and processing the torque electricity
The processing unit of signal；
2) any time, driver trample gas pedal, export accelerator opening amount signal α；Entire car controller is believed according to accelerator open degree
Number be calculated by engine and motor unit at the comprehensive output torque T of dynamical systemsys, and calculate separately engine expectation
Torque TengTorque T it is expected with ISG motorISG,1；
3) in engine end, engine controller it is expected torque T according to engineeng, controlling the torque of engine reality output is
Teng,real, and it is sent to the first torque acquisition device；
4) it calculates engine and it is expected torque TengWith engine reality output torque Teng,realDifference, obtain the vibration damping of ISG motor
Torque；Expression formula is as follows:
TISG,2=Teng-Teng,real
5) motor controller control ISG motor exports damping torque TISG,2Torque T it is expected with ISG motorISG,1Superposition obtains
Dynamical system integrates output torque Tsys,real, and it is sent to the second torque acquisition device；
6) output torque T comprehensive to dynamical systemsysIt carries out closed-loop control and obtains the control amount T of ISG motorISG,3, obtain engine
Reality output torque is Teng,real, the true output torque of ISG motor is TISG=TISG,1+TISG,2+TISG,3, realize and actively subtract
Shake.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593612.0A CN109677396A (en) | 2018-12-25 | 2018-12-25 | A kind of active damping method for engine-electric machine coupled system twisting vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593612.0A CN109677396A (en) | 2018-12-25 | 2018-12-25 | A kind of active damping method for engine-electric machine coupled system twisting vibration |
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| CN109677396A true CN109677396A (en) | 2019-04-26 |
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ID=66189337
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863912A (en) * | 2019-10-11 | 2020-03-06 | 清华大学 | Engine cylinder deactivation method utilizing active vibration reduction |
| CN113027625A (en) * | 2021-04-15 | 2021-06-25 | 常州易控汽车电子股份有限公司 | IPU controller speed compensation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863912A (en) * | 2019-10-11 | 2020-03-06 | 清华大学 | Engine cylinder deactivation method utilizing active vibration reduction |
| CN113027625A (en) * | 2021-04-15 | 2021-06-25 | 常州易控汽车电子股份有限公司 | IPU controller speed compensation method |
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Application publication date: 20190426 |