CN106671973B

CN106671973B - Hybrid vehicle and its shift control method and shifting control system

Info

Publication number: CN106671973B
Application number: CN201510751361.4A
Authority: CN
Inventors: 严二冬
Original assignee: Beijing Treasure Car Co Ltd
Current assignee: Beijing Treasure Car Co Ltd
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2019-09-20
Anticipated expiration: 2035-11-06
Also published as: CN106671973A

Abstract

The invention discloses a kind of hybrid vehicle and its shift control method and shifting control system, the shift control method is the following steps are included: obtain the current operation mode of hybrid vehicle；Shifting corresponding with the current operation mode is obtained according to the current operation mode, wherein the hybrid vehicle includes multiple-working mode, and every kind of operating mode in the multiple-working mode has corresponding Shifting；The hybrid vehicle is controlled according to the Shifting corresponding with the current operation mode of acquisition to shift gears.Thus, the embodiment of the present invention uses different Shiftings under different working modes, to adapt to the different demands under different working modes to gear, and then vehicle is made to be attained by better power performance and economic performance in each of these modes of operation, promotes the driving performance of vehicle.

Description

Hybrid vehicle and its shift control method and shifting control system

Technical field

The present invention relates to automobile technical field, in particular to a kind of shift control method for hybrid vehicle, one Kind is used for the shifting control system and a kind of hybrid vehicle of hybrid vehicle.

Background technique

The shift control strategy of automobile is fairly simple in the related technology, typically only the fuel characteristic of consideration engine, row The factors such as characteristic and NVH (Noise, Vibration, Harshness, noise, vibration and sound vibration roughness) are put, thus can only It can satisfy the demand under the demand under some specific operation mode to shift, such as pure engine mode to shift.

But its disadvantages are that, it, may if only meeting under some specific operation mode the needs of to shift It will cause the consequences such as power performance missing, fuel-economy performance variation or the electric quantity consumption increase under other operating modes.Such as When vehicle enters pure electrician's operation mode, since the efficiency characteristic of motor and the fuel characteristic of engine have very big difference, because This will cause electric quantity consumption using the Shifting that the factors such as based on engine fuel characteristic, emission performance are formulated and obviously increases Add, power performance cannot reach the consequences such as expected.

Summary of the invention

The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention One purpose is to propose a kind of shift control method for hybrid vehicle, and this method can be such that vehicle reaches in difference Better power performance and economic performance are attained by under operating mode.

It is another object of the present invention to propose a kind of shifting control system for hybrid vehicle.Of the invention Another purpose is to propose a kind of hybrid vehicle.

In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of shift control for hybrid vehicle Method, comprising the following steps: obtain the current operation mode of hybrid vehicle；According to current operation mode acquisition and institute State the corresponding Shifting of current operation mode, wherein the hybrid vehicle includes multiple-working mode, a variety of works Every kind of operating mode in operation mode has corresponding Shifting；Corresponding with the current operation mode according to acquisition is changed Hybrid vehicle described in gear policy control is shifted gears.

The shift control method for hybrid vehicle proposed according to embodiments of the present invention, according to current operation mode Shifting corresponding with current operation mode is obtained, and is controlled according to the Shifting corresponding with current operation mode of acquisition Hybrid vehicle is shifted gears.The method of the embodiment of the present invention uses different shifts under different working modes as a result, Strategy to adapt to the different demands under different working modes to gear, and then is attained by vehicle in each of these modes of operation Better power performance and economic performance, promote the driving performance of vehicle.

According to some embodiments of the present invention, the multiple-working mode includes pure electrician's operation mode, pure engine operation Mode, power generation operation mode in parallel and power-assisted operating mode in parallel.

According to some embodiments of the present invention, when the current operation mode of the hybrid vehicle is the pure electricity work When mode, Shifting corresponding with pure electrician's operation mode is the first Shifting, and first Shifting is according to electricity The efficiency distribution curve of motivation and the external characteristic curve of motor obtain；When the current operation mode of the hybrid vehicle When for the power generation operation mode in parallel, Shifting corresponding with the power generation operation mode in parallel is the second Shifting, Second Shifting is obtained according to the efficiency distribution curve of the fuel characteristic curve of engine, engine test bench characteristic and motor It takes；When the current operation mode of the hybrid vehicle is the pure engine working mode, with the pure engine work The corresponding Shifting of operation mode is third Shifting, the third Shifting according to the fuel characteristic curve of engine and The external characteristic curve of engine obtains；When the current operation mode of the hybrid vehicle is the power-assisted operating mode in parallel When, Shifting corresponding with the parallel connection power-assisted operating mode is the 4th Shifting, and the 4th Shifting is according to hair External characteristic curve after the fuel characteristic curve of motivation, the efficiency distribution curve of motor and motor are coupled with engine obtains It takes.

According to some embodiments of the present invention, the hybrid vehicle includes motor, engine, clutch and speed change Device, wherein when the current operation mode of the hybrid vehicle is pure electrician's operation mode, the clutch separation, The motor drives the hybrid electric vehicle to sail by the speed changer, and the engine does not work；When described mixed When the current operation mode for closing power vehicle is the power generation operation mode in parallel, the clutch is combined, and the engine drives It moves the hybrid electric vehicle to sail, while motor described in the driven by engine generates electricity；When the hybrid vehicle When current operation mode is the pure engine working mode, the clutch is combined, and mixing described in the engine driving is dynamic Power running car, and the motor does not work；When the current operation mode of the hybrid vehicle is the power-assisted in parallel When operating mode, the clutch is combined, and the engine and the motor drive the hybrid electric vehicle to sail simultaneously.

In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of shift control for hybrid vehicle System processed, comprising: entire car controller determines that the mixing is dynamic for the driving cycle and whole vehicle state according to hybrid vehicle The current operation mode of power automobile, and control the hybrid vehicle and run with the current operation mode；Transmission control Unit, for obtaining the current operation mode of hybrid vehicle, and according to the current operation mode obtain with it is described current The corresponding Shifting of operating mode, and according to the control of the Shifting corresponding with the current operation mode of acquisition Hybrid vehicle is shifted gears, wherein the hybrid vehicle includes multiple-working mode, in the multiple-working mode Every kind of operating mode have corresponding Shifting.

The shifting control system for hybrid vehicle proposed according to embodiments of the present invention, transmission control unit root Shifting corresponding with current operation mode is obtained according to current operation mode, and according to the corresponding with current operation mode of acquisition Shifting control hybrid vehicle shift gears.The system of the embodiment of the present invention is under different working modes as a result, Using different Shiftings, to adapt to the different demands under different working modes to gear, and then vehicle is made to work at every kind It is attained by better power performance and economic performance under mode, promotes the driving performance of vehicle.

In order to achieve the above objectives, another aspect of the invention embodiment proposes a kind of hybrid vehicle, including described Shifting control system for hybrid vehicle.

The hybrid vehicle proposed according to embodiments of the present invention passes through the above-mentioned shift control for hybrid vehicle System processed uses different Shiftings under different working modes to adapt to need the difference of gear under different working modes It asks, and then vehicle is made to be attained by better power performance and economic performance in each of these modes of operation, promote the driving of vehicle Performance.

Detailed description of the invention

Fig. 1 is the flow chart of the shift control method according to an embodiment of the present invention for hybrid vehicle；

Fig. 2 is the process of the acquisition methods of the first Shifting under pure electrician's operation mode according to an embodiment of the invention Figure；

Fig. 3 is the efficiency distribution curve of motor according to an embodiment of the invention and the external characteristic curve of motor Schematic diagram；

Fig. 4 is the shift curve signal of the first Shifting under pure electrician's operation mode according to an embodiment of the invention Figure；

Fig. 5 is the acquisition methods of the second Shifting under power generation operation mode in parallel according to an embodiment of the invention Flow chart；

Fig. 6 is the fuel characteristic curve of engine according to an embodiment of the invention and the external characteristic curve of engine Schematic diagram；

Fig. 7 is that the shift curve of the second Shifting under power generation operation mode in parallel according to an embodiment of the invention shows It is intended to；

Fig. 8 is the acquisition methods of third Shifting under pure engine working mode according to an embodiment of the invention Flow chart；

Fig. 9 is that the shift curve of third Shifting under pure engine working mode according to an embodiment of the invention shows It is intended to；

Figure 10 is the acquisition methods of the 4th Shifting under power-assisted operating mode in parallel according to an embodiment of the invention Flow chart；

Figure 11 is the shift curve of the 4th Shifting under power-assisted operating mode in parallel according to an embodiment of the invention Schematic diagram；

Figure 12 is the process of the shift control method for hybrid vehicle accord to a specific embodiment of that present invention Figure；

Figure 13 is the block diagram of the shifting control system according to an embodiment of the present invention for hybrid vehicle；

Figure 14 is the structural schematic diagram of the hybrid power system of hybrid vehicle according to an embodiment of the invention.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

Below with reference to the accompanying drawings come describe the embodiment of the present invention proposition for hybrid vehicle shift control method, use In the shifting control system and hybrid vehicle of hybrid vehicle.Wherein, hybrid vehicle may include motor, hair Motivation, clutch and speed changer.According to one embodiment of present invention, mixing as shown in figure 14 can be used in hybrid vehicle Dynamical system, as shown in figure 14, engine 101, clutch 102 and motor 103 are sequentially coaxially connected, and pass through speed change Device 104 is by the power output of engine 101 and motor 103 to drive forerunner and rear-wheel, also, motor 103 can also sent out Power generation thinks that power battery 105 charges under the drive of motivation 101.But the hybrid vehicle of the embodiment of the present invention is not limited to figure Hybrid power system shown in 14 can also be other hybrid vehicles with speed changer.

It should be understood that equal about hybrid vehicle and its each system, the specific configuration of mechanism, working principle etc. It has been the prior art, and to be well known to those of ordinary skill in the art, it is here for purposes of brevity, no longer superfluous in detail one by one It states.

One aspect of the present invention embodiment proposes a kind of shift control method for hybrid vehicle.

Fig. 1 is the flow chart of the shift control method according to an embodiment of the present invention for hybrid vehicle.Such as Fig. 1 institute Show, the shift control method the following steps are included:

S1: the current operation mode of hybrid vehicle is obtained.

Specifically, the entire car controller HCU (Hybrid Control Unit) of hybrid vehicle can be dynamic according to mixing The driving cycle and whole vehicle state of power automobile determine current operation mode, and then entire car controller HCU can be by current operation mode Transmission control unit TCU (Transmission Control Unit) is issued so that transmission control unit by CAN bus TCU gets current operation mode.Also, entire car controller HCU can control hybrid vehicle with determining work at present mould Formula traveling.

S2: Shifting corresponding with current operation mode is obtained according to current operation mode, wherein hybrid vehicle Including multiple-working mode, every kind of operating mode in multiple-working mode has corresponding Shifting.

S3: hybrid vehicle is controlled according to the Shifting corresponding with current operation mode of acquisition and is shifted gears.

It should be noted that transmission control unit TCU can prestore a variety of Shiftings, a variety of Shiftings with it is a variety of Operating mode, Shifting is also different under different working modes.

Specifically, after transmission control unit TCU receives the current operation mode that entire car controller HCU is sent, According to current operation mode and corresponding Shifting can be obtained from a variety of Shiftings for prestoring shift gears curve.Speed changer control Unit TCU processed can carry out shift control according to the shift curve after obtaining Shifting i.e. shift curve, specifically, become Fast device control unit TCU can obtain the current vehicle speed and current accelerator pedal aperture of hybrid vehicle, and then basis works as front truck Fast and current accelerator pedal aperture is compared in corresponding shift curve to obtain comparison result, and according to comparison result control The gear of hybrid vehicle processed is kept off, for example, can be controlled according to comparison result the gear of hybrid vehicle by 1 gear be upgraded to 2 gears, Or 1 gear is reduced to by 2 gears or keeps gear constant.

The method of the embodiment of the present invention uses different Shiftings under different working modes as a result, to adapt to not With, to the different demands of gear, and then vehicle being made to be attained by better power performance in each of these modes of operation under operating mode With economic performance, the driving performance of vehicle is promoted.

A specific embodiment according to the present invention, multiple-working mode may include pure electrician's operation mode, pure engine work Operation mode, power generation operation mode in parallel and power-assisted operating mode in parallel.It is described below to mix under four kinds of operating modes in front and move The Shifting of power automobile, working principle.

Specifically, as shown in figure 14, when the current operation mode of hybrid vehicle is pure electrician's operation mode, clutch 102 separation, motor 103 drives hybrid electric vehicle to sail by speed changer 104, and engine 101 does not work；When mixing is dynamic When the current operation mode of power automobile is power generation operation mode in parallel, clutch 102 is combined, and engine 101 drives hybrid power Running car, while engine 101 drives the power generation of motor 103 to think that power battery 105 charges；When working as hybrid vehicle When preceding operating mode is pure engine working mode, clutch 102 is combined, and engine 101 drives hybrid electric vehicle to sail, and Motor 103 does not work；When the current operation mode of hybrid vehicle is power-assisted operating mode in parallel, 102 knot of clutch It closes, engine 101 and motor 103 drive hybrid electric vehicle to sail simultaneously.

Specifically, when the current operation mode of hybrid vehicle is pure electrician's operation mode, with pure electrician's operation mode pair The Shifting answered is the first Shifting, and the first Shifting can be according to the efficiency distribution curve of motor and motor External characteristic curve obtains.

That is, selecting this first shift curve of the shift of the first Shifting i.e. first curve under pure electrician's operation mode Mainly obtained according to the external characteristic curve of the efficiency distribution curve of motor and motor.

Specifically, Shifting may include economy Shifting and dynamic property Shifting, under pure electrician's operation mode, It obtains the first Shifting according to the external characteristic curve of the efficiency distribution curve of motor and motor to specifically include: according to electricity The most economical working region of the efficiency distribution curve acquisition motor of motivation, and according to the most economical working region of motor and add The characteristic of speed pedal obtains the first economy Shifting；The maximum power of motor is obtained according to the external characteristic curve of motor Revolving speed point, and the first dynamic property Shifting is obtained according to the characteristic of the max-power-output speed of motor point and accelerator pedal；It will First economy Shifting and the first dynamic property Shifting synthesize the first Shifting.

It should be noted that following principle can be based on when obtaining the first economy Shifting, i.e., by the work of motor Point (operating point includes torque and revolving speed) adjusts the optimal economic region to motor as much as possible, to meet economy shift Demand；Following principle can be based on when obtaining the first dynamic property Shifting, even if the revolving speed after shift can reach maximum work Rate revolving speed point, to meet dynamic property shift demand.

More specifically, can following steps according to Fig.2, obtain the first Shifting:

S201: obtaining the efficiency distribution curve of motor and the external characteristic curve of motor, executes step S202 respectively With step S207.

S202: according to the economic work region of the efficiency distribution curve acquisition motor of motor.

By taking Fig. 3 as an example, Fig. 3 is the external characteristic curve and efficiency distribution curve of the motor of a specific embodiment of the invention Schematic diagram, wherein curve a indicates external characteristic curve, other curves other than curve a indicate efficiency distribution curve.By efficiency point The economic work region that cloth curve can be seen that this motor is in 1500-3500rpm.

S203: according to the economic work region of the motor of acquisition, it is corresponding to obtain each power points in multiple power points Most economical working speed.

Specifically, multiple and different power points can be preset according to the actual situation, and combines the efficiency distribution curve of motor, Obtain the corresponding most economical working speed of each power points.More specifically, curve c indicates that a plurality of invariable power is bent in the example of Fig. 3 Line, that is, multiple power points can obtain every invariable power curve with most economical point zero in conjunction with the efficiency distribution curve of motor, this Sample can obtain the corresponding most economical working speed of each power points.

S204: the relationship between accelerator pedal aperture and most economical working speed is obtained according to the characteristic of accelerator pedal.

Wherein, under different pedal openings, the power of motor is different, and then the revolving speed of motor is also different, in this way For each power points in multiple power points, the corresponding accelerator pedal of each power points can be obtained according to the characteristic of accelerator pedal and is opened Degree, and each power points has corresponding most economical working speed, turns so as to obtain accelerator pedal aperture and most economical work Relationship between speed.

S205: according to the Relation acquisition speed and accelerator pedal aperture between accelerator pedal aperture and most economical working speed It combines corresponding closest to gear.

S206: it obtains the relationship between accelerator pedal, speed and gear finally to obtain the first economy Shifting, holds Row step S211.

Specifically, accelerator pedal aperture determines power demand, any one accelerator pedal can be obtained according to power demand and opened Corresponding most economical working speed is spent, and motor speed of any one speed under multiple gears can be obtained according to speed ratio Value, in this way by the corresponding most economical working speed of any one accelerator pedal aperture such as aperture Ki and any one speed such as speed Motor speed value of the Vi under multiple gears is compared to obtain comparison result, will be corresponding with aperture Ki according to comparison result The corresponding gear of the immediate motor speed value of most economical working speed it is corresponding closest as aperture Ki and vehicle velocity V i Gear, for example, if the corresponding motor speed value of gear Di is Zi, and between the corresponding most economical working speed of aperture 1 and Zi Difference it is minimum, then aperture Ki and vehicle velocity V i it is corresponding closest to gear be gear Di.And so on, it obtains other accelerator pedals and opens Degree and speed combination are corresponding closest to gear, finally obtain multiple groups speed, accelerator pedal aperture, the value of gear, and by multiple groups Speed, accelerator pedal aperture, the value of gear are combined to obtain the first economy Shifting.

S207: the max-power-output speed point of motor is obtained according to the external characteristic curve of motor.

Wherein, by the motor external characteristic curve in Fig. 3 it is found that the max-power-output speed point of this motor is about 3000rpm。

S208: obtaining the corresponding shift revolving speed of each gear under multiple gears, so that the revolving speed after shift is kept substantially In max-power-output speed point.

Wherein, different gears have different speed ratios, thus under each gear can with the strongest shift revolving speed of dynamic property into Row shift, so that motor speed remains essentially in max-power-output speed point after the completion of shift.

S209: the relationship that accelerator pedal aperture is obtained between revolving speed of shifting gears according to the characteristic of accelerator pedal.

S210: according to the relationship between accelerator pedal aperture and shift revolving speed, accelerator pedal, speed and gear can finally be obtained Relationship between position is to obtain the first dynamic property Shifting.

S211: the first final Shifting is obtained according to the first economy Shifting and the first dynamic property Shifting I.e. first shift curve.

Wherein, the most economical working speed in step S203-S205, the shift revolving speed in step S208-S210 can refer to The revolving speed of motor.

Specifically, the first economy Shifting and the first dynamic property can be shifted gears plan according to preset pedal opening threshold value It is slightly synthesized, to synthesize the first final shift curve.For example, preset pedal opening threshold value can be 90%, work as acceleration Pedal opening is less than 90%, using the part in the first economy Shifting less than 90% as the economy of the first shift curve Policy section will be in the first dynamic property Shifting more than or equal to 90% when accelerator pedal aperture is greater than or equal to 90% Dynamic property policy section of the part as the first shift curve, the first final shift curve of such two parts synthesis.

As a result, according to above-mentioned steps S201-S211, the first shift curve graph under pure electrician's operation mode can be obtained.? In an example of the invention, the first shift curve graph can be shown such as Fig. 4, wherein solid line is upshift curve, and dotted line is downshift Curve.By taking upshift as an example, when the aperture of accelerator pedal is k, it is u1 that 1 gear, which rises the corresponding speed of 2 gears, and 2 gears rise the corresponding speed of 3 gears and are U2, it is u3 that 3 gears, which rise 4 and keep off corresponding speed, and 4 gears rise 5 and keep off corresponding speed as u4 gear.

When the current operation mode of hybrid vehicle is power generation operation mode in parallel, with power generation operation mode pair in parallel The Shifting answered is the second Shifting, and the second Shifting is according to fuel characteristic curve, the engine test bench characteristic of engine With the efficiency distribution curve acquisition of motor.

That is, the second Shifting i.e. second is selected to shift gears curve under power generation operation mode in parallel, this second is changed Keeping off curve is mainly the efficiency distribution curve acquisition according to the fuel characteristic curve of engine, engine test bench characteristic and motor.

Specifically, Shifting may include economy Shifting and dynamic property Shifting, in power generation operation mould in parallel Under formula, shifted gears according to the efficiency distribution curve acquisition second of the fuel characteristic curve of engine, engine test bench characteristic and motor Strategy specifically includes: obtaining engine respectively most according to the efficiency distribution curve of the fuel characteristic curve of engine and motor The most economical working region in economic work region and motor, and most according to the most economical working region of engine and motor The characteristic of economic work region and accelerator pedal obtains the second economy Shifting；It is obtained according to the external characteristic curve of engine The max-power-output speed point of engine is taken, and obtains second according to the characteristic of the max-power-output speed of engine point and accelerator pedal Dynamic property Shifting；Second economy Shifting and the second dynamic property Shifting are synthesized into the second Shifting.

It should be noted that following principle can be based on when obtaining the second economy Shifting, i.e., by engine and electricity The operating point (operating point includes torque and revolving speed) of motivation is both adjusted to corresponding optimal economic region, is changed with meeting economy Gear demand；Following principle can be based on when obtaining the second dynamic property Shifting, even if the revolving speed after shift can reach maximum Power revolving speed point, to meet dynamic property shift demand.

More specifically, the second Shifting can be obtained following steps according to figure 5:

S301: the fuel characteristic curve, the efficiency distribution curve of motor and the external characteristics of engine of engine are obtained Curve executes step S302 and step S307 respectively.

S302: engine and electricity are obtained according to the efficiency distribution curve of the fuel characteristic curve of engine and motor respectively The economic work region of motivation.

By taking Fig. 3 as an example, Fig. 3 is the external characteristic curve and efficiency distribution curve of the motor of a specific embodiment of the invention Schematic diagram, wherein curve a indicates external characteristic curve, other curves in curve a indicate efficiency distribution curve.By efficiency distribution The economic work region that curve can be seen that this motor is in 1500-3500rpm.

By taking Fig. 6 as an example, Fig. 6 is the external characteristic curve and fuel characteristic curve of the engine of a specific embodiment of the invention Schematic diagram, wherein curve b indicates the external characteristic curve of engine, other curves other than curve b indicate fuel characteristic curve. The economic work region of this engine is in 1500-3500rpm it can be seen from fuel characteristic curve.S303: according to acquisition The economic work region of engine and the economic work region of motor, it is corresponding most to obtain each power points in multiple power points Economic work revolving speed.

Specifically, multiple and different power points can be preset according to the actual situation, and combines the economic work region obtained, Obtain the corresponding most economical working speed of each power points.More specifically, curve d indicates that a plurality of invariable power is bent in the example of Fig. 6 Line, that is, multiple power points can obtain every invariable power curve with most economical point zero in conjunction with the efficiency distribution curve of engine, this Sample can obtain the corresponding most economical working speed of each power points.

S304: the relationship between accelerator pedal aperture and most economical working speed is obtained according to the characteristic of accelerator pedal.

Wherein, under different pedal openings, the power of engine is different, and then the revolving speed of engine is also different, in this way For each power points in multiple power points, the corresponding accelerator pedal of each power points can be obtained according to the characteristic of accelerator pedal and is opened Degree, and each power points has corresponding most economical working speed, turns so as to obtain accelerator pedal aperture and most economical work Relationship between speed.

S305: according to the Relation acquisition accelerator pedal aperture and speed between accelerator pedal aperture and most economical working speed It combines corresponding closest to gear.

S306: it obtains the relationship between accelerator pedal, speed and gear finally to obtain the second economy Shifting, holds Row step S311.

Specifically, accelerator pedal aperture determines power demand, any one accelerator pedal can be obtained according to power demand and opened Corresponding most economical working speed is spent, and engine speed value of any one speed under multiple gears can be obtained according to speed ratio (or motor speed value), in this way by the corresponding most economical working speed of any one accelerator pedal aperture such as aperture Ki with it is any Engine speed value (or motor speed value) of a speed such as vehicle velocity V i under multiple gears is compared to obtain and compare As a result, according to comparison result will corresponding with the aperture Ki most economical immediate hair machine tachometer value of working speed (or motor turns Speed value) corresponding gear is corresponding closest to gear as aperture Ki and vehicle velocity V i, starts for example, if gear Di is corresponding Machine tachometer value (or motor speed value) is Zi, and the difference between the corresponding most economical working speed of aperture 1 and Zi is minimum, then It is gear Di that aperture Ki and vehicle velocity V i, which is corresponded to closest to gear,.And so on, obtain other accelerator pedal apertures and speed combination It is corresponding finally to obtain multiple groups speed, accelerator pedal aperture, the value of gear closest to gear, and by multiple groups speed, accelerator pedal Aperture, the value of gear are combined to obtain the second economy Shifting.S307: it is obtained according to the external characteristic curve of engine The max-power-output speed point of engine.

S308: obtaining the corresponding shift revolving speed of each gear under multiple gears, so that the revolving speed after shift is kept substantially In max-power-output speed point.

Wherein, different gears have different speed ratios, thus under each gear can with the strongest shift revolving speed of dynamic property into Row shift, so that engine speed remains essentially in max-power-output speed point after the completion of shift.

S309: the relationship that accelerator pedal aperture is obtained between revolving speed of shifting gears according to the characteristic of accelerator pedal.

S310: according to the relationship between accelerator pedal aperture and shift revolving speed, accelerator pedal, speed and gear can finally be obtained Relationship between position is to obtain the second dynamic property Shifting.

S311: it is bent that the second final shift is obtained according to the second economy Shifting and the second dynamic property Shifting Line.

Wherein, the most economical working speed in step S303-S305 can refer to the revolving speed of engine or the revolving speed of motor, step Shift revolving speed in rapid S308-S310 can refer to the revolving speed of engine.

Specifically, the second economy Shifting and the second dynamic property can be shifted gears plan according to preset pedal opening threshold value It is slightly synthesized, to synthesize the second final shift curve.For example, preset pedal opening threshold value can be 90%, work as acceleration Pedal opening is less than 90%, using the part in the second economy Shifting less than 90% as the economy of the second shift curve Policy section will be in the second dynamic property Shifting more than or equal to 90% when accelerator pedal aperture is greater than or equal to 90% Dynamic property policy section of the part as the second shift curve, final the second Shifting i.e. second of such two parts synthesis are changed Keep off curve.

As a result, according to above-mentioned steps S301-S311, the second shift curve under power generation operation mode in parallel can be obtained Figure.In an example of the invention, the second shift curve graph can be shown such as Fig. 7, wherein solid line is upshift curve, dotted line For downshift curve.By taking upshift as an example, when the aperture of accelerator pedal is k, it is w1 that 1 gear, which rises 2 and keeps off corresponding speed, and 2 gears rise 3 gears and correspond to Speed is w2, and it is w3 that 3 gears, which rise 4 and keep off corresponding speed, and 4 gears rise 5 and keep off corresponding speed as w4 gear.

When the current operation mode of hybrid vehicle is pure engine working mode, with pure engine working mode pair The Shifting answered is third Shifting, and third Shifting is according to the fuel characteristic curve of engine and the outer spy of engine Linearity curve obtains.

That is, selecting third Shifting, that is, third shift curve under pure engine working mode, this third is changed Keeping off curve is mainly to be obtained according to the fuel characteristic curve of engine and the external characteristic curve of engine.

Specifically, Shifting may include economy Shifting and dynamic property Shifting, in pure engine operation mould Under formula, third Shifting is obtained according to the fuel characteristic curve and engine test bench characteristic of engine and is specifically included: according to starting The most economical working region of the fuel characteristic curve acquisition engine of machine, and according to the most economical working region of engine and acceleration The characteristic of pedal obtains third economy Shifting；Turned according to the maximum power that the external characteristic curve of engine obtains engine It is fast, and third dynamic property Shifting is obtained according to the characteristic of the max-power-output speed of engine point and accelerator pedal；By Three economy Shiftings and third dynamic property Shifting synthesize third Shifting.

It should be noted that following principle can be based on when obtaining third economy Shifting, i.e., by the work of engine Make point (operating point includes torque and revolving speed) and adjust the optimal economic region for arriving engine as much as possible, is changed with meeting economy Gear demand；Following principle can be based on when obtaining third dynamic property Shifting, even if the revolving speed after shift can reach maximum Power revolving speed point, to meet dynamic property shift demand.

More specifically, can following steps according to figure 8 obtain third Shifting:

S401: obtaining the fuel characteristic curve of engine and the external characteristic curve of engine, respectively execute step S402 and Step S407.

S402: according to the economic work region of the fuel characteristic curve acquisition engine of engine.

By taking Fig. 6 as an example, Fig. 6 is the external characteristic curve and fuel characteristic curve of the engine of a specific embodiment of the invention Schematic diagram, wherein curve b indicates the external characteristic curve of engine, other curves other than curve b indicate fuel characteristic curve. The economic work region of this engine is in 1500-3500rpm it can be seen from fuel characteristic curve.

S403: according to the economic work region of the engine of acquisition, it is corresponding to obtain each power points in multiple power points Most economical working speed.

Specifically, under different pedal openings, the power of engine is different, and then the revolving speed of engine is also different, this Sample can preset multiple and different power points for each power points in multiple power points according to the actual situation, and combine and obtained Economic work region, obtain the corresponding most economical working speed of each power points, the specific example such as Fig. 6.

S404: the relationship between accelerator pedal aperture and most economical working speed is obtained according to the characteristic of accelerator pedal.

Wherein, for each power points in multiple power points, each power points pair can be obtained according to the characteristic of accelerator pedal The accelerator pedal aperture answered, and each power points has corresponding most economical working speed, so as to obtain accelerator pedal aperture With the relationship between most economical working speed.

S405: according between accelerator pedal aperture and most economical working speed relationship determine obtain accelerator pedal aperture and Speed combination is corresponding closest to gear.

S406: it obtains the relationship between accelerator pedal, speed and gear finally to obtain third economy Shifting, holds Row step S411.

Specifically, accelerator pedal aperture determines power demand, any one accelerator pedal can be obtained according to power demand and opened Corresponding most economical working speed is spent, and engine speed of any one speed under multiple gears can be obtained according to speed ratio Value, in this way by the corresponding most economical working speed of any one accelerator pedal aperture such as aperture Ki and any one speed such as speed Engine speed value of the Vi under multiple gears is compared to obtain comparison result, will be corresponding with aperture Ki according to comparison result The corresponding gear of the immediate hair machine tachometer value of most economical working speed it is corresponding closest as aperture Ki and vehicle velocity V i Gear, for example, if the corresponding engine speed value of gear Di is Zi, and between the corresponding most economical working speed of aperture 1 and Zi Difference it is minimum, then aperture Ki and vehicle velocity V i it is corresponding closest to gear be gear Di.And so on, it obtains other accelerator pedals and opens Degree and speed combination are corresponding closest to gear, finally obtain multiple groups speed, accelerator pedal aperture, the value of gear, and by multiple groups Speed, accelerator pedal aperture, the value of gear are combined to obtain third economy Shifting.

S407: the max-power-output speed point of engine is obtained according to the external characteristic curve of engine.

S408: obtaining the corresponding shift revolving speed of each gear under multiple gears, so that the revolving speed after shift is kept substantially In max-power-output speed point.

S409: the relationship that accelerator pedal aperture is obtained between revolving speed of shifting gears according to the characteristic of accelerator pedal.

S410: according to the relationship between accelerator pedal aperture and shift revolving speed, accelerator pedal, speed and gear can finally be obtained Relationship between position is to obtain third dynamic property Shifting.

S411: it is bent that final third shift is obtained according to third economy Shifting and third dynamic property Shifting Line.

Wherein, the most economical working speed in step S403-S405, the shift revolving speed in step S408-S410 can refer to The revolving speed of engine.

Specifically, third economy Shifting and third dynamic property can be shifted gears plan according to preset pedal opening threshold value It is slightly synthesized, to synthesize final third shift curve.For example, preset pedal opening threshold value can be 90%, work as acceleration Pedal opening is less than 90%, using the part in third economy Shifting less than 90% as the economy of third shift curve Policy section will be in third dynamic property Shifting more than or equal to 90% when accelerator pedal aperture is greater than or equal to 90% Dynamic property policy section of the part as third shift curve, such two parts synthesize final third Shifting i.e. third and change Keep off curve.

As a result, according to above-mentioned steps S401-S411, the third shift curve under pure engine working mode can be obtained Figure.In an example of the invention, third shifts gears curve graph can be shown such as Fig. 9, wherein solid line is upshift curve, dotted line For downshift curve.By taking upshift as an example, when the aperture of accelerator pedal is k, it is v1 that 1 gear, which rises 2 and keeps off corresponding speed, and 2 gears rise 3 gears and correspond to Speed is v2, and it is v3 that 3 gears, which rise 4 and keep off corresponding speed, and 4 gears rise 5 and keep off corresponding speed as v4 gear.

When the current operation mode of hybrid vehicle is power-assisted operating mode in parallel, with power-assisted operating mode pair in parallel The Shifting answered is the 4th Shifting, and the 4th Shifting is according to the fuel characteristic curve of engine, the efficiency of motor External characteristic curve after distribution curve and motor are coupled with engine obtains.

That is, the 4th Shifting the i.e. the 4th is selected to shift gears curve under power-assisted operating mode in parallel, this 4th is changed Curve is kept off mainly according to the fuel characteristic curve of engine, the efficiency distribution curve of motor and motor and engine coupling External characteristic curve after conjunction obtains.

Specifically, Shifting may include economy Shifting and dynamic property Shifting, in power-assisted Working mould in parallel Under formula, after being coupled according to the fuel characteristic curve of engine, the efficiency distribution curve of motor and motor with engine External characteristic curve obtains the 4th Shifting and specifically includes: according to the fuel characteristic curve of engine and the efficiency distribution of motor Curve obtains the most economical working region of engine and the most economical working region of motor, and most passing through according to engine respectively The characteristic of the most economical working region and accelerator pedal of Ji working region and motor obtains the 4th economy Shifting；Root The max-power-output speed point of curve acquisition engine after being coupled according to the external characteristic curve and engine test bench characteristic curve of engine, And the 4th dynamic property Shifting is obtained according to the characteristic of the max-power-output speed of engine point and accelerator pedal；By the 4th economy Property Shifting and the 4th dynamic property Shifting synthesize the 4th Shifting.

It should be noted that following principle can be based on when obtaining the 4th economy Shifting, i.e., by engine and electricity It the operating point (operating point includes torque and revolving speed) of motivation while adjusting and arrives corresponding optimal economic region, to meet economy Shift demand；Following principle can be based on when obtaining the 4th dynamic property Shifting, even if the revolving speed after shift can reach most High-power revolving speed point, to meet dynamic property shift demand.

More specifically, can following steps according to Fig.10, obtain the 4th Shifting:

S501: the fuel characteristic curve, the efficiency distribution curve of motor and the external characteristics of engine of engine are obtained Curve executes step S502 and step S507 respectively.

S502: the warp of engine is obtained respectively according to the efficiency distribution curve of the fuel characteristic curve of engine and motor The economic work region of Ji working region and motor.

S503: according to the economic work region in the economic work region of the engine of acquisition and motor, multiple function are obtained The corresponding most economical working speed of each power points in rate point.Specifically, multiple and different power can be preset according to the actual situation Point, and combine the economic work region that has obtained, obtains the corresponding most economical working speed of each power points, it is specific such as Fig. 3 or The example of Fig. 6.

S504: the relationship between accelerator pedal aperture and most economical working speed is obtained according to the characteristic of accelerator pedal.

S505: according between accelerator pedal aperture and most economical working speed relationship determine obtain accelerator pedal aperture and Speed combines corresponding immediate gear.

S506: finally show that the relationship between accelerator pedal, speed and gear to obtain the 4th economy Shifting, is held Row step S511.

Specifically, accelerator pedal aperture determines power demand, any one accelerator pedal can be obtained according to power demand and opened Corresponding most economical working speed is spent, and engine speed value of any one speed under multiple gears can be obtained according to speed ratio (or motor speed value), in this way by the corresponding most economical working speed of any one accelerator pedal aperture such as aperture Ki with it is any Engine speed value (or motor speed value) of a speed such as vehicle velocity V i under multiple gears is compared to obtain and compare As a result, according to comparison result will corresponding with the aperture Ki most economical immediate hair machine tachometer value of working speed (or motor turns Speed value) corresponding gear is corresponding closest to gear as aperture Ki and vehicle velocity V i, starts for example, if gear Di is corresponding Machine tachometer value (or motor speed value) is Zi, and the difference between the corresponding most economical working speed of aperture 1 and Zi is minimum, then It is gear Di that aperture Ki and vehicle velocity V i, which is corresponded to closest to gear,.And so on, obtain other accelerator pedal apertures and speed combination It is corresponding finally to obtain multiple groups speed, accelerator pedal aperture, the value of gear closest to gear, and by multiple groups speed, accelerator pedal Aperture, the value of gear are combined to obtain the 4th economy Shifting.

S507: according to the curve acquisition maximum power after the external characteristic curve of engine and the coupling of motor external characteristic curve Revolving speed point.S508: obtaining the corresponding shift revolving speed of each gear under multiple gears, so that the revolving speed after shift remains essentially in Max-power-output speed point.

Wherein, different gears have different speed ratios, thus under each gear can with the strongest shift revolving speed of dynamic property into Row shift, so that the revolving speed after the completion of shift remains essentially in max-power-output speed point.

S509: the relationship that accelerator pedal aperture is obtained between revolving speed of shifting gears according to the characteristic of accelerator pedal.

S510: according to the relationship between accelerator pedal aperture and shift revolving speed, accelerator pedal, speed and gear can finally be obtained Relationship between position is to obtain the 4th dynamic property Shifting.

S511: it is bent that the 4th final shift is obtained according to the 4th economy Shifting and the 4th dynamic property Shifting Line.

Wherein, it should be noted that because engine speed is identical as motor speed, be previously mentioned in step S501-S511 Revolving speed either motor speed, is also possible to engine speed.

Specifically, the 4th economy Shifting and the 4th dynamic property can be shifted gears plan according to preset pedal opening threshold value It is slightly synthesized, to synthesize the 4th final shift curve.For example, preset pedal opening threshold value can be 90%, work as acceleration Pedal opening is less than 90%, using the part in the 4th economy Shifting less than 90% as the economy of the 4th shift curve Policy section will be in the 4th dynamic property Shifting more than or equal to 90% when accelerator pedal aperture is greater than or equal to 90% Dynamic property policy section of the part as the 4th shift curve, the 4th final Shifting the i.e. the 4th of such two parts synthesis change Keep off curve.

As a result, according to above-mentioned steps S501-S511, the 4th shift curve under power-assisted operating mode in parallel can be obtained Figure.In an example of the invention, the 4th shift curve graph can be shown such as Figure 11, wherein solid line is upshift curve, dotted line For downshift curve.By taking upshift as an example, when the aperture of accelerator pedal is k, it is s1 that 1 gear, which rises 2 and keeps off corresponding speed, and 2 gears rise 3 gears and correspond to Speed is s2, and it is s3 that 3 gears, which rise 4 and keep off corresponding speed, and 4 gears rise 5 and keep off corresponding speed as s4 gear.

Specifically, the shift control method for hybrid vehicle of the embodiment of the present invention specifically includes shown in Figure 12 Following steps:

S101: entire car controller HCU judges the current operation mode of hybrid vehicle.

S102: current operation mode is sent to transmission control unit TCU by entire car controller HCU.

S103: transmission control unit TCU obtains shift plan corresponding with current operation mode according to current operation mode Slightly.

S104: the first Shifting is selected when current operation mode is pure electrician's operation mode；When current operation mode is The second Shifting is selected when power generation operation mode in parallel；Third is selected when current operation mode is pure engine working mode Shifting；The 4th Shifting is selected when current operation mode is power-assisted operating mode in parallel.

The shift control method for hybrid vehicle of the embodiment of the present invention is adapted to different working modes as a result, Under gear demand, i.e., different Shiftings is selected under different working modes, and then can assign in different working modes To optimal power performance and economic performance.

In conclusion the shift control method for hybrid vehicle proposed according to embodiments of the present invention, according to working as Preceding operating mode obtains Shifting corresponding with current operation mode, and is changed according to the corresponding with current operation mode of acquisition Gear policy control hybrid vehicle is shifted gears.The method of the embodiment of the present invention uses under different working modes as a result, Different Shiftings to adapt to the different demands under different working modes to gear, and then makes vehicle in every kind of operating mode Under be attained by better power performance and economic performance, promote the driving performance of vehicle.

Another aspect of the present invention embodiment proposes a kind of shifting control system for hybrid vehicle.

Figure 13 is the block diagram of the shifting control system according to an embodiment of the present invention for hybrid vehicle.Such as Shown in Figure 13, which includes: entire car controller 201 and transmission control unit 202.

Wherein, entire car controller 201 is used to determine that mixing is dynamic according to the driving cycle and whole vehicle state of hybrid vehicle The current operation mode of power automobile, and control hybrid vehicle and run with current operation mode；Transmission control unit 202 is used In carrying out CAN communication with entire car controller 201, and speed changer 104 is controlled, transmission control unit 202 is also used to obtain The current operation mode of hybrid vehicle is taken, and shift plan corresponding with current operation mode is obtained according to current operation mode Slightly, it and controls hybrid vehicle according to the Shifting corresponding with current operation mode of acquisition to shift gears, wherein mixed Closing power vehicle includes multiple-working mode, and every kind of operating mode in multiple-working mode has corresponding Shifting.

It should be noted that transmission control unit 202 can prestore a variety of Shiftings, a variety of Shiftings with it is a variety of Operating mode, Shifting is also different under different working modes.

Specifically, entire car controller 201 can determine currently according to the driving cycle and whole vehicle state of hybrid vehicle Operating mode, then entire car controller HCU can by current operation mode by CAN bus issue transmission control unit 202 with Transmission control unit 202 is set to get current operation mode.

It, can be according to current after transmission control unit 202 receives the current operation mode of the transmission of entire car controller 201 Operating mode simultaneously obtains corresponding Shifting from a variety of Shiftings for prestoring and shifts gears curve.Transmission control unit 202 After obtaining Shifting i.e. shift curve shift control, specifically, transmission control can be carried out according to the shift curve Unit 202 can obtain the current vehicle speed and current accelerator pedal aperture of hybrid vehicle, then according to current vehicle speed and currently Accelerator pedal aperture is compared to obtain comparison result in corresponding shift curve, and dynamic according to comparison result control mixing The gear of power automobile is kept off, such as can be upgraded to 2 gears by 1 gear according to the gear of comparison result control hybrid vehicle or be kept off by 2 It is reduced to 1 gear or keeps gear constant.

The system of the embodiment of the present invention uses different Shiftings under different working modes as a result, to adapt to not With, to the different demands of gear, and then vehicle being made to be attained by better power performance in each of these modes of operation under operating mode With economic performance, the driving performance of vehicle is promoted.

Thus, it is possible to which the gear demand under adapting to different working modes, i.e., select different change under different working modes Gear strategy, and then optimal power performance and economic performance can be reached under different working modes.

In conclusion the shifting control system for hybrid vehicle proposed according to embodiments of the present invention, speed changer Control unit obtains corresponding with current operation mode Shifting according to current operation mode, and according to acquisition and current work The corresponding Shifting control hybrid vehicle of operation mode is shifted gears.The system of the embodiment of the present invention is different as a result, Different Shiftings is used under operating mode, to adapt to the different demands under different working modes to gear, and then makes vehicle It is attained by better power performance and economic performance in each of these modes of operation, promotes the driving performance of vehicle.

The present invention has one side embodiment to propose a kind of hybrid vehicle, which includes above-mentioned implementation The shifting control system for hybrid vehicle of example.

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims

1. a kind of shift control method for hybrid vehicle, which comprises the following steps:

Obtain the current operation mode of hybrid vehicle；

Shifting corresponding with the current operation mode is obtained according to the current operation mode, wherein the mixing is dynamic Power automobile includes multiple-working mode, and every kind of operating mode in the multiple-working mode has corresponding Shifting；

The hybrid vehicle is controlled according to the Shifting corresponding with the current operation mode of acquisition to shift gears；

Wherein, the corresponding Shifting of every kind of operating mode includes economy Shifting and dynamic property Shifting, and According to default pedal opening threshold value, the economy Shifting and the dynamic property Shifting are synthesized and worked with every kind The corresponding Shifting of mode, wherein the part of the default pedal opening threshold value will be less than in the economy Shifting It is described by being greater than or equal in the dynamic property Shifting as the economy Shifting part in corresponding Shifting The part of default pedal opening threshold value is as the dynamic property Shifting part in corresponding Shifting.

2. the shift control method according to claim 1 for hybrid vehicle, which is characterized in that a variety of works Operation mode includes pure electrician's operation mode, pure engine working mode, power generation operation mode in parallel and power-assisted operating mode in parallel.

3. the shift control method according to claim 2 for hybrid vehicle, which is characterized in that

When the current operation mode of the hybrid vehicle is pure electrician's operation mode, with pure electrician's operation mode pair The Shifting answered is the first Shifting, and first Shifting is according to the efficiency distribution curve and motor of motor External characteristic curve obtain；

When the current operation mode of the hybrid vehicle is the power generation operation mode in parallel, with the power generation work in parallel The corresponding Shifting of operation mode is the second Shifting, second Shifting according to the fuel characteristic curve of engine, The efficiency distribution curve acquisition of engine test bench characteristic and motor；

When the current operation mode of the hybrid vehicle is the pure engine working mode, with the pure engine work The corresponding Shifting of operation mode is third Shifting, the third Shifting according to the fuel characteristic curve of engine and The external characteristic curve of engine obtains；

When the current operation mode of the hybrid vehicle is the power-assisted operating mode in parallel, with the power-assisted work in parallel The corresponding Shifting of operation mode is the 4th Shifting, the 4th Shifting according to the fuel characteristic curve of engine, External characteristic curve after the efficiency distribution curve and motor of motor are coupled with engine obtains.

4. the shift control method according to claim 2 for hybrid vehicle, which is characterized in that the mixing is dynamic Power automobile includes motor, engine, clutch and speed changer, wherein

When the current operation mode of the hybrid vehicle is pure electrician's operation mode, the clutch separation is described Motor drives the hybrid electric vehicle to sail by the speed changer, and the engine does not work；

When the current operation mode of the hybrid vehicle is the power generation operation mode in parallel, the clutch is combined, Hybrid electric vehicle described in the engine driving is sailed, while motor described in the driven by engine generates electricity；

When the current operation mode of the hybrid vehicle is the pure engine working mode, the clutch is combined, Hybrid electric vehicle described in the engine driving is sailed, and the motor does not work；

When the current operation mode of the hybrid vehicle is the power-assisted operating mode in parallel, the clutch is combined, The engine and the motor drive the hybrid electric vehicle to sail simultaneously.

5. a kind of shifting control system for hybrid vehicle characterized by comprising

Entire car controller, for determining the hybrid vehicle according to the driving cycle and whole vehicle state of hybrid vehicle Current operation mode, and control the hybrid vehicle and run with the current operation mode；

Transmission control unit, for obtaining the current operation mode of hybrid vehicle, and according to the current operation mode Shifting corresponding with the current operation mode is obtained, and is changed according to the corresponding with the current operation mode of acquisition Hybrid vehicle described in gear policy control is shifted gears, wherein the hybrid vehicle includes multiple-working mode, described Every kind of operating mode in multiple-working mode has corresponding Shifting,

6. the shifting control system according to claim 5 for hybrid vehicle, which is characterized in that a variety of works Operation mode includes pure electrician's operation mode, pure engine working mode, power generation operation mode in parallel and power-assisted operating mode in parallel.

7. the shifting control system according to claim 6 for hybrid vehicle, which is characterized in that

8. the shifting control system according to claim 6 for hybrid vehicle, which is characterized in that the mixing is dynamic Power automobile includes motor, engine, clutch and speed changer, wherein

9. a kind of hybrid vehicle, which is characterized in that including dynamic for mixing according to any one of claim 5-8 The shifting control system of power automobile.