CN204895106U - Double mode planet series -parallel connection system and control system thereof - Google Patents
Double mode planet series -parallel connection system and control system thereof Download PDFInfo
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- CN204895106U CN204895106U CN201520024940.4U CN201520024940U CN204895106U CN 204895106 U CN204895106 U CN 204895106U CN 201520024940 U CN201520024940 U CN 201520024940U CN 204895106 U CN204895106 U CN 204895106U
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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
Abstract
The utility model relates to a hybrid vehicle field has especially involved a double mode planet series -parallel connection system and control system thereof. Concatenated torque sensor between the output shaft of the engine of this double mode planet series -parallel connection system and the planet heat -extraction system, torque sensor and vehicle control unit are connected, and engine actual output's accurate moment of torsion eng_Trq accessible torque sensor feedback obtains, and control realizes that closed loop PI revises to engine torque: (1 )When actual moment of torsion is less than the target moment of torsion, increase engine torque output, (2 )When actual moment of torsion is greater than the target moment of torsion, engine stop target instruction target word output, the generator load is counter drags. When using, torque sensor can measure by real -time collection analog signal, and vehicle control unit obtains analog signal and calculates the current true torque value of engine, calculates through control strategy and realizes engine accuracy closed -loop control to the problem that planet heat -extraction system engine operating point can not obtain the accurate control has been solved.
Description
Technical field
The utility model relates to motor vehicle driven by mixed power field, has particularly related to a kind of double mode planet combined hybrid system and control system thereof.
Background technology
In motor vehicle driven by mixed power field, tandem energy realizes the optimal control of driving engine, but all energy all can, through two times transfer, lose larger; Parallel connection can realize good driving efficiency, but driving engine and output shaft are mechanically connected, and can not ensure that driving engine is in preferably in work area all the time; Therefore series parallel type power system is a selection preferably.Current series parallel type power system mainly adopts planetary mechanism as power dividing device, and the advantage of planet row system is: it can realize the decoupling zero between engine speed and output shaft rotating speed.Control system, when any speed of a motor vehicle, can control rotating speed and the moment of torsion of driving engine, thus realizes the work of engine high-efficiency district.But due to machinery and the combustion characteristic of driving engine, the current torque value himself calculated often exists error, cause planet row system engine operation point can not be precisely controlled, the advantage of this system cannot be played to greatest extent.
Summary of the invention
The purpose of this utility model is to provide a kind of double mode planet combined hybrid system, to solve the problem that planet row system engine operation point can not be precisely controlled.
Meanwhile, the purpose of this utility model is also the control system providing above-mentioned double mode planet combined hybrid system.
In order to solve the problem, double mode planet combined hybrid system of the present utility model is by the following technical solutions: double mode planet combined hybrid system, comprise driving engine, electrical generator, planet arrangement mechanism, drive motor, electrical source of power, the integrated manipulator of entire car controller and double-motor and electric annex, torque sensor is serially connected with between the output shaft of described driving engine and planet row system, torque sensor is connected with entire car controller, engine torque Te and output shaft torque Tout relation is obtained according to the configuration of planet arrangement mechanism, the relation of engine speed Ne and output shaft rotating speed Nout, entire car controller calculates the demand power of car load under different vehicle velocity V and accelerator open degree AccPed_Norm according to vehicle match information, coordinate the work of driving engine and two motors, engine demand power P ower_e can be obtained, when driving engine needs to participate in driving, to table look-up universal characteristic curve of engine MAP_e according to present engine demand power Power_e, the engine speed point finding oil consumption oil_eff minimum controls rotating speed Eng_DemadSpd as engine target, then to table look-up universal characteristic curve of engine MAP_e according to target control rotating speed Eng_DemadSpd and engine demand power P ower_e, obtain engine target control torque Eng_DemadTrq, the accurate torque Eng_Trq of the actual output of driving engine is obtained by torque sensor feedback, and revise engine torque control realization closed loop PI: when (1) actual torque is less than target torque, greater engine moment of torsion exports, (2), when actual torque is greater than target torque, engine stop target instruction target word exports, and generator loading is counter to be dragged.
Also torsional vibration damper is provided with between the output shaft of described driving engine and planet arrangement mechanism.
Described planet arrangement mechanism comprises front planet row and rear planet row, PG1 sun wheel, PG1 gear ring and PG1 pinion carrier are drawn together in front planet package, rear planet row comprises PG2 gear ring, PG2 pinion carrier, PG2 sun wheel, and described PG1 gear ring is connected with PG2 pinion carrier, and PG2 gear ring is fixed gear ring.
Driving engine to the pass of the output shaft of planet arrangement mechanism is: the output shaft torque Tout of engine torque Te and planet arrangement mechanism closes and is:
the pass of rotating speed Ne and output shaft rotating speed Nout is:
(wherein: 1.k1 is the ratio of PG1 gear ring radius and PG1 sun wheel radius; 2.Te is the torque rating that driving engine exports; 3.Nm1 is the torque rating that MG1 motor exports).
The control system of double mode planet combined hybrid system is by the following technical solutions: double mode planet series-parallel connection control system, comprise entire car controller, also comprise the torque sensor be connected with entire car controller, torque sensor is between the output shaft that is serially connected in the driving engine of double mode planet combined hybrid system and the output shaft of planet arrangement mechanism, engine torque Te and output shaft torque Tout relation is obtained according to the configuration of planet arrangement mechanism, the relation of engine speed Ne and output shaft rotating speed Nout, entire car controller calculates the demand power of car load under different vehicle velocity V and accelerator open degree AccPed_Norm according to vehicle match information, coordinate the work of driving engine and two motors, engine demand power P ower_e can be obtained, when driving engine needs to participate in driving, to table look-up universal characteristic curve of engine MAP_e according to present engine demand power Power_e, the engine speed point finding oil consumption oil_eff minimum controls rotating speed Eng_DemadSpd as engine target, then to table look-up universal characteristic curve of engine MAP_e according to target control rotating speed Eng_DemadSpd and engine demand power P ower_e, obtain engine target control torque Eng_DemadTrq, the accurate torque Eng_Trq of the actual output of driving engine is obtained by torque sensor feedback, and revise engine torque control realization closed loop PI: when (1) actual torque is less than target torque, greater engine moment of torsion exports, (2), when actual torque is greater than target torque, engine stop target instruction target word exports, and generator loading is counter to be dragged.
Owing to being serially connected with torque sensor between the engine output shaft of double mode planet combined hybrid system of the present utility model and planet arrangement mechanism, and torque sensor is connected with entire car controller, therefore, when in use, torque sensor can be real-time collection analog signal amount, entire car controller obtains analog signals and calculates the current actual torque value of driving engine, calculated by control policy and realize the accurate closed loop control of driving engine, thus solve the problem that planet row system engine operation point can not be precisely controlled.
Further, the impact of moment is started when torsional vibration damper can alleviate engine operation; Because rear planet row PG2 gear ring is locking, front planet row PG1 gear ring is connected in rear planet row PG2 pinion carrier, drive motor realizes deceleration increasing by rear planet row speed ratio and turns round function, reduces the size of drive motor, thus reduces the cost of dual motors system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of double mode planet combined hybrid system;
Fig. 2 is the control flow chart of double mode planet combined hybrid system.
Detailed description of the invention
The embodiment of double mode planet combined hybrid system, as shown in Figure 1-2, this double mode planet combined hybrid system comprises driving engine 11, torque sensor 12, torsional vibration damper 13, planet arrangement mechanism, MG1 electrical generator 14, MG2 drive motor 15, entire car controller 16, electrical source of power, double-motor and electric annex integrated manipulator 18.
Torque sensor 12 and torsional vibration damper 13 are serially connected in the position between driving engine 11 and planet arrangement mechanism successively, and torque sensor 12 is connected with entire car controller 16.
Planet arrangement mechanism comprises front planet row and rear planet row, PG1 sun wheel 19, PG1 gear ring 20, PG1 pinion carrier 21 are drawn together in front planet package, rear planet row comprises PG2 gear ring 22, PG2 pinion carrier 23, PG2 sun wheel 24, wherein PG1 gear ring 21 is connected with PG2 pinion carrier 23, and PG2 gear ring 22 is fixed gear ring.
The torque T out obtaining the output shaft 17 of engine torque Te and planet arrangement mechanism according to the configuration of planet arrangement mechanism closes and is:
the relation of engine speed Ne and output shaft 17 rotating speed Nout:
wherein: 1.k1 is the ratio of PG1 gear ring radius and PG1 sun wheel radius; 2.Te is the torque rating that driving engine exports; 3.Nm1 is the torque rating that MG1 motor exports.Entire car controller calculates the demand power of car load under different vehicle velocity V and accelerator open degree AccPed_Norm according to vehicle match information, coordinates the work of driving engine and two motors, can obtain engine demand power P ower_e; When driving engine needs to participate in driving, to table look-up universal characteristic curve of engine MAP_e according to present engine demand power Power_e, the engine speed point finding oil consumption oil_eff minimum controls rotating speed Eng_DemadSpd as engine target; Then to table look-up universal characteristic curve of engine MAP_e according to target control rotating speed Eng_DemadSpd and engine demand power P ower_e, obtain engine target control torque Eng_DemadTrq; The accurate torque Eng_Trq of the actual output of driving engine is obtained by torque sensor feedback, and revise engine torque control realization closed loop PI: when (1) actual torque is less than target torque, greater engine moment of torsion exports; (2), when actual torque is greater than target torque, engine stop target instruction target word exports, and generator loading is counter to be dragged.
The embodiment of double mode planet series-parallel connection control system, the formation of this double mode planet series-parallel connection control system is identical with control system involved in above-mentioned double mode planet combined hybrid system, and it will not go into details herein.
Claims (5)
1. double mode planet combined hybrid system, comprise driving engine, electrical generator, planet arrangement mechanism, drive motor, electrical source of power, the integrated manipulator of entire car controller and double-motor and electric annex, it is characterized in that, torque sensor is serially connected with between the output shaft of described driving engine and planet row system, torque sensor is connected with entire car controller, engine torque Te and planet arrangement mechanism output shaft torque Tout relation is obtained according to the configuration of planet arrangement mechanism, the relation of the output shaft rotating speed Nout of engine speed Ne and planet arrangement mechanism, entire car controller calculates the demand power of car load under different vehicle velocity V and accelerator open degree AccPed_Norm according to vehicle match information, coordinate the work of driving engine and MG1 motor and MG2 motor two motors, engine demand power P ower_e can be obtained, when driving engine needs to participate in driving, to table look-up universal characteristic curve of engine MAP_e according to present engine demand power Power_e, the engine speed point finding oil consumption oil_eff minimum controls rotating speed Eng_DemadSpd as engine target, then to table look-up universal characteristic curve of engine MAP_e according to target control rotating speed Eng_DemadSpd and engine demand power P ower_e, obtain engine target control torque Eng_DemadTrq, the accurate torque Eng_Trq of the actual output of driving engine is obtained by torque sensor feedback, and revise engine torque control realization closed loop PI: when (1) actual torque is less than target torque, greater engine moment of torsion exports, (2), when actual torque is greater than target torque, engine stop target instruction target word exports, and generator loading is counter to be dragged.
2. double mode planet combined hybrid system according to claim 1, is characterized in that, be also provided with torsional vibration damper between the output shaft of described driving engine and planet arrangement mechanism.
3. double mode planet combined hybrid system according to claim 1 and 2, it is characterized in that, described planet arrangement mechanism comprises front planet row and rear planet row, PG1 sun wheel, PG1 gear ring and PG1 pinion carrier are drawn together in front planet package, rear planet row comprises PG2 gear ring, PG2 pinion carrier, PG2 sun wheel, described PG1 gear ring is connected with PG2 pinion carrier, and PG2 gear ring is fixed gear ring.
4. double mode planet combined hybrid system according to claim 3, it is characterized in that, driving engine to the pass of the output shaft of planet arrangement mechanism is: the output shaft torque Tout of engine torque Te and planet arrangement mechanism closes and is:
the pass of the output shaft rotating speed Nout of rotating speed Ne and planet arrangement mechanism is:
wherein: 1.k1 is the ratio of PG1 gear ring radius and PG1 sun wheel radius; 2.Te is the torque rating that driving engine exports; 3.Nm1 is the torque rating that MG1 motor exports.
5. double mode planet series-parallel connection control system, comprise entire car controller, it is characterized in that, also comprise the torque sensor be connected with entire car controller, torque sensor is between the output shaft that is serially connected in the driving engine of double mode planet combined hybrid system and the output shaft of planet arrangement mechanism, engine torque Te and output shaft torque Tout relation is obtained according to the configuration of planet arrangement mechanism, the relation of engine speed Ne and output shaft rotating speed Nout, entire car controller calculates the demand power of car load under different vehicle velocity V and accelerator open degree AccPed_Norm according to vehicle match information, coordinate the work of driving engine and two motors, engine demand power P ower_e can be obtained, when driving engine needs to participate in driving, to table look-up universal characteristic curve of engine MAP_e according to present engine demand power Power_e, the engine speed point finding oil consumption oil_eff minimum controls rotating speed Eng_DemadSpd as engine target, then to table look-up universal characteristic curve of engine MAP_e according to target control rotating speed Eng_DemadSpd and engine demand power P ower_e, obtain engine target control torque Eng_DemadTrq, the accurate torque Eng_Trq of the actual output of driving engine is obtained by torque sensor feedback, and revise engine torque control realization closed loop PI: when (1) actual torque is less than target torque, greater engine moment of torsion exports, (2), when actual torque is greater than target torque, engine stop target instruction target word exports, and generator loading is counter to be dragged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024940.4U CN204895106U (en) | 2015-01-14 | 2015-01-14 | Double mode planet series -parallel connection system and control system thereof |
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| CN201520024940.4U CN204895106U (en) | 2015-01-14 | 2015-01-14 | Double mode planet series -parallel connection system and control system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648116A (en) * | 2015-01-14 | 2015-05-27 | 郑州宇通客车股份有限公司 | Double-mode planet series-parallel connecting system and control system thereof |
| CN106183800A (en) * | 2016-09-06 | 2016-12-07 | 吉林大学 | A kind of double clutch planetary hybrid vehicle 48V power drive system |
| CN109795310A (en) * | 2017-11-17 | 2019-05-24 | 郑州宇通客车股份有限公司 | A kind of hybrid power system and the vehicle using the hybrid power system |
| CN110775044A (en) * | 2019-11-13 | 2020-02-11 | 安徽江淮汽车集团股份有限公司 | Double-motor hybrid control method and device based on planetary gear system |
| CN114074652A (en) * | 2021-12-06 | 2022-02-22 | 凯博易控车辆科技(苏州)股份有限公司 | Vibration reduction control method for engine shutdown process of planetary gear row hybrid system |
-
2015
- 2015-01-14 CN CN201520024940.4U patent/CN204895106U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648116A (en) * | 2015-01-14 | 2015-05-27 | 郑州宇通客车股份有限公司 | Double-mode planet series-parallel connecting system and control system thereof |
| CN106183800A (en) * | 2016-09-06 | 2016-12-07 | 吉林大学 | A kind of double clutch planetary hybrid vehicle 48V power drive system |
| CN106183800B (en) * | 2016-09-06 | 2018-04-13 | 吉林大学 | A kind of planetary hybrid vehicle 48V power drive systems of double clutch |
| CN109795310A (en) * | 2017-11-17 | 2019-05-24 | 郑州宇通客车股份有限公司 | A kind of hybrid power system and the vehicle using the hybrid power system |
| CN109795310B (en) * | 2017-11-17 | 2023-08-11 | 宇通客车股份有限公司 | Hybrid power system and vehicle using same |
| CN110775044A (en) * | 2019-11-13 | 2020-02-11 | 安徽江淮汽车集团股份有限公司 | Double-motor hybrid control method and device based on planetary gear system |
| CN110775044B (en) * | 2019-11-13 | 2020-11-03 | 安徽江淮汽车集团股份有限公司 | Double-motor hybrid control method and device based on planetary gear system |
| CN114074652A (en) * | 2021-12-06 | 2022-02-22 | 凯博易控车辆科技(苏州)股份有限公司 | Vibration reduction control method for engine shutdown process of planetary gear row hybrid system |
| CN114074652B (en) * | 2021-12-06 | 2024-03-19 | 凯博易控车辆科技(苏州)股份有限公司 | Vibration reduction control method for engine stopping process of planetary gear train hybrid system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20170222 |