CN103158708B - A kind of shift control method of the hybrid vehicle with AMT change speed gear box - Google Patents
A kind of shift control method of the hybrid vehicle with AMT change speed gear box Download PDFInfo
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- CN103158708B CN103158708B CN201110424988.0A CN201110424988A CN103158708B CN 103158708 B CN103158708 B CN 103158708B CN 201110424988 A CN201110424988 A CN 201110424988A CN 103158708 B CN103158708 B CN 103158708B
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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 invention discloses a kind of shift control method of the hybrid vehicle with AMT change speed gear box, comprise the following steps: A:HCU judges whether to receive the gear shifting signal that TCU sends; B: when HCU receives the gear shifting signal that TCU sends, HCU sends to motor and driving engine the instruction that moment of torsion reduces to zero simultaneously; C: when the moment of torsion of motor and driving engine all reduces to zero, TCU control synchro moves to neutral gear position; D: when TCU control synchro moves to neutral gear position, HCU send the instruction of generation reactive torque to carry out speed governing to motor; And E: after electric machine speed regulation completes, TCU sends to motor the instruction that moment of torsion reduces to zero, and when the moment of torsion of motor is zero, TCU control synchro moves to predetermined gear and locks.According to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, can conservative control driving engine and electric machine speed regulation, make gearshift fast steady, reduce the car impact in engaging process, improve driver comfort.
Description
Technical field
The invention belongs to Development of HEV Technology field, particularly relate to a kind of shift control method of the hybrid vehicle with AMT change speed gear box.
Background technology
Along with constantly promoting the attention of energy security and environmental protection problem in the world, various countries require more and more stricter to automotive emissions.Reduce the dependence to the energy, realize energy-saving and emission-reduction, become the problem that world economy sustainable development is in the urgent need to address.Therefore, hybrid vehicle, pure electric automobile have become the trend of current auto-domain development.Oil-electric vehicle is wherein combined at motor and driving engine; for each operating mode, idle stop, electric motor starting, intelligent charge, regenerative brake, motor power-assisted, the electronic mixed dynamic function such as to creep are set; there is reduction oil consumption, emissions reduction, increase continual mileage, develop skill the advantages such as degree of ripeness, is the first-selected trend of current China Automobile Industry.
Fig. 1 shows a kind of technical scheme of existing hybrid vehicle, wherein, and 1-electric machine controller, 2-motor, 3-regime clutch, 4-engine petrol, 5-engine management system, the mixed dynamic power controller of 6-, 7-power battery pack, 8-charger, 9-battery management system, 10-fuel tank, display terminal (not shown) and 12-AMT Automatic Transmission.
As shown in Figure 1, engine petrol 4 and motor 2 are two propulsions source, regime clutch 3 is for the joint between two propulsions source, mixed dynamic power controller (HCU) 6 is cores of full-vehicle control, the coordination between engine management system (EMS) 5 and electric machine controller (MCU) 1 is coordinated for controlling, and the two and gearbox control system (TCU, not shown) torque coordination, to realize the good driving performance of vehicle and energy optimization.
Wherein, the gearshift of AMT Automatic Transmission controls to be one of gordian technique in field of hybrid electric vehicles, and it is also making constant progress.At hybrid vehicle, in AMT automatic transmission gear shift process, worked by engine petrol and motor two kinds of propulsions source simultaneously and be switched to motor speed master mode.Therefore, in AMT automatic transmission gear shift control process, be easy to cause the impact of vehicle very large, need the distribution in shift process reasonably controlling two kinds of propulsions source, the control policy of optimization is extremely important for solution shock problem.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, one object of the present invention is to propose one can conservative control driving engine and electric machine speed regulation, make gearshift fast steady, reduce the car impact in engaging process, improve the shift control method being applied to the hybrid vehicle being with AMT change speed gear box of driver comfort.
According to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, the AMT gearbox control that described electronlmobil comprises hybrid controller and is connected with described hybrid controller, comprises the following steps: A: described hybrid controller judges whether to receive the gear shifting signal that described AMT gearbox control sends; B: when described hybrid controller receives the gear shifting signal that described AMT gearbox control sends, described hybrid controller sends to motor and driving engine the instruction that moment of torsion reduces to zero simultaneously; C: when the moment of torsion of described motor and described driving engine all reduces to zero, described AMT gearbox control control synchro moves to neutral gear position; D: when described AMT gearbox control control synchro moves to neutral gear position, described hybrid controller sends the instruction of generation reactive torque to carry out speed governing to described motor; And E: after described electric machine speed regulation completes, AMT gearbox control sends to described motor the instruction that moment of torsion reduces to zero, and when the moment of torsion of described motor is zero, described AMT gearbox control controls described synchro and moves to predetermined gear and lock.
According to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, in the process of gearshift, the moment of torsion of motor reduced before this, after Motor torque drops to zero, produce reversing sense moment of torsion and carry out speed governing, driving engine maintains idling operation all the time, thus, can conservative control driving engine and electric machine speed regulation, make gearshift fast steady, reduce the car impact in engaging process, improve driver comfort.
In addition, the shift control method of the hybrid vehicle of band AMT change speed gear box according to the above embodiment of the present invention can also have following additional technical characteristic:
Be with the shift control method of the hybrid vehicle of AMT change speed gear box according to one embodiment of present invention, also comprise: F: described AMT gearbox control sends gearshift settling signal to described hybrid controller; G: after described hybrid controller receives gearshift settling signal, described hybrid controller sends moment of torsion to described motor and rises to the instruction of the first predetermined value and described hybrid controller sends to described driving engine the instruction that moment of torsion rises to the second predetermined value.
Advantageously, be with the shift control method of the hybrid vehicle of AMT change speed gear box according to one embodiment of present invention, described hybrid controller sends moment of torsion to described motor and rises decline again until the instruction of described first predetermined value with first-order filtering curve.
Advantageously, be with the shift control method of the hybrid vehicle of AMT change speed gear box according to one embodiment of present invention, described hybrid controller sends to described driving engine moment of torsion to rise to described second predetermined value instruction with first-order filtering curve.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of a kind of hybrid vehicle of the prior art;
Fig. 2 is the shift control method schematic diagram of the hybrid vehicle of band AMT change speed gear box according to an embodiment of the invention; With
Fig. 3 adopts the shift control method of the hybrid vehicle of band AMT change speed gear box according to an embodiment of the invention to carry out curve synoptic diagram time dependent in shift process;
Wherein, in Fig. 3, a represents speed curves, and b represents motor-engine speed graph, and c represents predetermined gear curve, and d represents current shift curve, and e represents master mode curve, and f represents Motor torque curve and g represents engine torque curve.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, connect integratedly, also can be removably connect; Can be mechanical connection or electrical connection, also can be the connection of two element internals; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Below with reference to the accompanying drawings the shift control method of the hybrid vehicle of the band AMT change speed gear box according to the embodiment of the present invention is described in detail.
As Figure 2-3, according to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, the AMT gearbox control that described electronlmobil comprises hybrid controller and is connected with described hybrid controller.
Specifically, comprise the following steps:
A: described hybrid controller judges whether to receive the gear shifting signal that described AMT gearbox control sends.
B: when described hybrid controller receives the gear shifting signal that described AMT gearbox control sends, described hybrid controller sends to motor and driving engine the instruction that moment of torsion reduces to zero simultaneously.
C: when the moment of torsion of described motor and described driving engine all reduces to zero, described AMT gearbox control control synchro moves to neutral gear position.
D: when described AMT gearbox control control synchro moves to neutral gear position, described hybrid controller sends the instruction of generation reactive torque to carry out speed governing to described motor.
E: after described electric machine speed regulation completes, AMT gearbox control sends to described motor the instruction that moment of torsion reduces to zero, and when the moment of torsion of described motor is zero, described AMT gearbox control controls described synchro and moves to predetermined gear and lock.
According to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, in the process of gearshift, the moment of torsion of motor reduced before this, after Motor torque drops to zero, produce reversing sense moment of torsion and carry out speed governing, driving engine maintains idling operation all the time, thus, can conservative control driving engine and electric machine speed regulation, make gearshift fast steady, reduce the car impact in engaging process, improve driver comfort.
According to one embodiment of present invention, the shift control method of the hybrid vehicle of described band AMT change speed gear box, also comprises: F: described AMT gearbox control sends gearshift settling signal to described hybrid controller; G: after described hybrid controller receives gearshift settling signal, described hybrid controller sends moment of torsion to described motor and rises to the instruction of the first predetermined value and described hybrid controller sends to described driving engine the instruction that moment of torsion rises to the second predetermined value.
Advantageously, be with the shift control method of the hybrid vehicle of AMT change speed gear box according to one embodiment of present invention, described hybrid controller sends moment of torsion to described motor and rises decline again until the instruction of described first predetermined value with first-order filtering curve.
Advantageously, be with the shift control method of the hybrid vehicle of AMT change speed gear box according to one embodiment of present invention, described hybrid controller sends to described driving engine moment of torsion to rise to described second predetermined value instruction with first-order filtering curve.
Thus, shifting gears successfully, the target torque of driving engine rises with first-order filtering curve, until reach setting value, and the moment of torsion of motor to be a filtering the rise process declined again, until setting value, rise with a level and smooth curve as early as possible with the summation moment of torsion of propulsion source after enabling gearshift.By the torque distribution of conservative control motor and driving engine, moment of torsion is made to recover smooth-going.
Below with reference to the accompanying drawings 3, rise 2 gears for 1 gear and sketch to adopt and carry out the process of shifting gears according to the shift control method of the hybrid vehicle of band AMT change speed gear box according to the present invention.
(1) when the speed of a motor vehicle increases gradually, when vehicle meets 1 gear liter 2 blend stop parts (judging according to ShiftMap), the master mode of AMT gearbox control becomes 2 from 0, now mixed dynamic power controller receives the signal (namely asking the signal of shifting gears) that AMT gearbox control master mode is not 0, and send the instruction that a moment of torsion reduces to zero to motor, also send the instruction that a moment of torsion reduces to zero to driving engine simultaneously.When t0, motor is received instruction and is reduced moment of torsion, and engine torque is reduced to zero and entered idling operation.
(2) when t1, driving engine and Motor torque are all zero, and now AMT gearbox control starts control synchro and moves to neutral gear position.
(3) during t1 to t2 be the electric machine speed regulation stage, due in shift process, the rotor inertia of driving engine is larger, and the speed governing torque ratio of motor is larger.Through verification experimental verification, the speed governing moment of torsion of motor within the acceptable range.So in speed-regulating mode, produce reciprocal moment of torsion by regulating motor and carry out speed governing.For the ease of electric machine speed regulation, engine torque is zero, is in idling mode all the time.
(4) when t2, electric machine speed regulation completes, and AMT gearbox control sends FreeMode to motor, the target torque vanishing of motor.Engine target moment of torsion is zero, and engine clucht output torque is zero.Be the gearshift stage at t2-t3, synchro starts mobile, until move on to target gear and pin.
(5) shift gears during t3 successfully, after synchro moves on to position, it is 0 signal (signal of namely having shifted gears) that AMT gearbox control sends master mode to mixed dynamic power controller.After mixed dynamic power controller receives signal, do the operation that moment of torsion recovers, mixed dynamic power controller is issued engine target moment of torsion and is risen with first-order filtering curve, and due to the response lag of driving engine actual torque, mixed dynamic power controller to rise the process declined again to moment of torsion filtering of motor, to enable the summation moment of torsion of propulsion source after gearshift as early as possible with a level and smooth curve rising.
According to the shift control method of the hybrid vehicle of the band AMT change speed gear box of the embodiment of the present invention, after predetermined gearshift condition meets, AMT change speed gear box starts gearshift.In the process of AMT gearbox shifting, the moment of torsion of motor reduced before this, and after Motor torque drops to zero, produce reversing sense moment of torsion and carry out speed governing, driving engine maintains idling operation all the time.Shifting gears successfully, the target torque of driving engine rises with first-order filtering curve, until reach setting value, and the moment of torsion of motor to be a filtering the rise process declined again, until setting value, rise with a level and smooth curve as early as possible to enable the summation moment of torsion of propulsion source after gearshift.By this control method, make the car impact in AMT gearbox shifting process little, driver comfort is good.By the torque distribution of conservative control motor and driving engine, moment of torsion is made to recover smooth-going.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (4)
1. a gear-shifting control method for the hybrid vehicle with AMT change speed gear box, the AMT gearbox control that described hybrid vehicle comprises hybrid controller and is connected with described hybrid controller, is characterized in that, comprise the following steps:
A: described hybrid controller judges whether to receive the gear shifting signal that described AMT gearbox control sends;
B: when described hybrid controller receives the gear shifting signal that described AMT gearbox control sends, described hybrid controller sends to motor and driving engine the instruction that moment of torsion reduces to zero simultaneously;
C: when the moment of torsion of described motor and described driving engine all reduces to zero, described AMT gearbox control control synchro moves to neutral gear position;
D: when described AMT gearbox control control synchro moves to neutral gear position, described hybrid controller sends the instruction of generation reactive torque to carry out speed governing to described motor; With
E: after described electric machine speed regulation completes, AMT gearbox control sends to described motor the instruction that moment of torsion reduces to zero, and when the moment of torsion of described motor is zero, described AMT gearbox control controls described synchro and moves to predetermined gear and lock.
2. the gear-shifting control method of the hybrid vehicle of band AMT change speed gear box according to claim 1, is characterized in that, also comprise:
F: described AMT gearbox control sends gearshift settling signal to described hybrid controller;
G: after described hybrid controller receives gearshift settling signal, described hybrid controller sends moment of torsion to described motor and rises to the instruction of the first predetermined value and described hybrid controller sends to described driving engine the instruction that moment of torsion rises to the second predetermined value.
3. the gear-shifting control method of the hybrid vehicle of band AMT change speed gear box according to claim 2, is characterized in that, described hybrid controller sends moment of torsion to described motor and rises decline again until the instruction of described first predetermined value with first-order filtering curve.
4. the gear-shifting control method of the hybrid vehicle of band AMT change speed gear box according to claim 2, is characterized in that, described hybrid controller sends to described driving engine moment of torsion to rise to described second predetermined value instruction with first-order filtering curve.
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| CN201110424988.0A CN103158708B (en) | 2011-12-16 | 2011-12-16 | A kind of shift control method of the hybrid vehicle with AMT change speed gear box |
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| CN201110424988.0A CN103158708B (en) | 2011-12-16 | 2011-12-16 | A kind of shift control method of the hybrid vehicle with AMT change speed gear box |
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| US9694804B2 (en) * | 2014-03-27 | 2017-07-04 | Ford Global Technologies, Llc | Delaying lash crossing for a modular hybrid transmission |
| CN104828092B (en) * | 2014-04-10 | 2019-01-25 | 北汽福田汽车股份有限公司 | The process for gear and system of hybrid vehicle |
| CN104002814B (en) * | 2014-05-30 | 2016-08-24 | 武汉合康动力技术有限公司 | A kind of shifting method based on AMT parallel type hybrid vehicle system, device and vehicle |
| CN104608760B (en) * | 2014-10-20 | 2016-05-25 | 比亚迪股份有限公司 | Hybrid vehicle and shift control method thereof, power drive system |
| CN105752076B (en) * | 2014-12-19 | 2018-08-24 | 北京宝沃汽车有限公司 | The dynamical system of the shift speed regulating method and hybrid vehicle of hybrid vehicle |
| DE102015203622A1 (en) * | 2015-03-02 | 2016-09-08 | Robert Bosch Gmbh | Method and device for the method for determining a shift request of a driver of a motor vehicle |
| CN107985301B (en) * | 2017-11-22 | 2020-01-24 | 吉利汽车研究院（宁波）有限公司 | Gear shifting system and gear shifting method based on hybrid power system |
| CN108082175A (en) * | 2017-12-14 | 2018-05-29 | 黄晓丽 | A kind of control method for vehicle based on gearbox control |
| CN108189831A (en) * | 2017-12-30 | 2018-06-22 | 盛瑞传动股份有限公司 | Prevent vehicle from generating the method and system of impact |
| CN108394412B (en) * | 2018-04-25 | 2020-10-30 | 吉利汽车研究院（宁波）有限公司 | Gear shifting control system and method for hybrid electric vehicle |
| CN109353208B (en) * | 2018-09-28 | 2020-08-21 | 潍柴动力股份有限公司 | Hybrid power assembly and control method thereof |
| CN114179779A (en) * | 2021-12-17 | 2022-03-15 | 清华大学苏州汽车研究院（吴江） | Gear shifting control method and device for hybrid electric vehicle |
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