CN106853819A

CN106853819A - A kind of HCU and the control method of clutch operating mode switching

Info

Publication number: CN106853819A
Application number: CN201510906068.0A
Authority: CN
Inventors: 孙俊; 密刚刚; 邱国茂; 赵沂; 胡瑾瑜; 王伦珍
Original assignee: SAIC Motor Corp Ltd
Current assignee: SAIC Motor Corp Ltd
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2017-06-16
Anticipated expiration: 2035-12-09
Also published as: CN106853819B

Abstract

A kind of HCU and the control method of clutch operating mode switching, methods described include：When clutch is in non-parallel operation pattern, judge whether engine and the operating mode of motor meet default first condition；When the operating mode of the engine and motor meets the first condition, judge power source premode can not meet operator demand's moment of torsion in the case of, if clutch is in paralleling model, if power source can be made to provide bigger driving torque or judge whether the efficiency of power source and the noise and vibration situation of vehicle meet default second condition；When efficiency and noise and vibration situation that power source it is determined that clutch is in paralleling model, can be made to provide bigger driving torque or power source meet the second condition, paralleling model is switched to work on clutch.Ensure that the power of vehicle is sufficient using such scheme, improve traffic safety, it is to avoid produce resonance, reduce noise.

Description

A kind of HCU and the control method of clutch operating mode switching

Technical field

The present invention relates to clutch control field, more particularly to a kind of HCU and clutch operating mode switching Control method.

Background technology

Automobile, in modern society, plays more and more important role, it has also become most day for human beings An indispensable part in often living.Under the background for advocating environmental protection, pure electric automobile and hybrid power Automobile (Hybrid Electric Vehicle, HEV) arises at the historic moment.When hybrid vehicle runs, clutch Device has three kinds of mode of operations：Pure electric drive mode, series model and paralleling model.Wherein：Pure electric drive Pattern, clutch only corresponding with motor can be closed, therefore only motor provides power for automobile.String Gang mould formula, driven by engine starts (Integrated Starter and Generator, ISG) electric power generation, The electric energy for sending is conveyed to motor by electric machine controller, produces battery torque to drive by motor Running car, i.e., realize that power is transmitted by motor between reasonable match system.Paralleling model, Engine and motor are simultaneously for automobile provides power.

At present, vehicle quickly increases in requirement drive moment of torsion or needs larger driving torque in climbing etc. During operating mode, will cause that clutch works into paralleling model；And it is smaller in the requirement drive moment of torsion of vehicle When, will cause that clutch exits paralleling model.

But, the switching of above-mentioned clutch operating mode is simultaneously unreasonable, easily causes the power of vehicle not Foot, influences traffic safety, and also results in generation resonance, and noise is very big.

The content of the invention

The problem that the present invention is solved is how to ensure that the power of vehicle is sufficient, improves traffic safety, it is to avoid produce Raw resonance, reduces noise.

To solve the above problems, the present invention provides a kind of control method of clutch operating mode switching, institute The method of stating includes：

When the clutch is in non-parallel operation pattern, judging the operating mode of engine and motor is It is no to meet default first condition；

When the operating mode of the engine and motor meets the first condition, judge power source at it In the case that premode can not meet operator demand's moment of torsion, if the clutch is in paralleling model, Whether the power source can be made to provide bigger driving torque, or the efficiency and vehicle for judging the power source Noise and vibration situation whether meet default second condition；

When it is determined that the clutch is in paralleling model, the power source being made to provide bigger driving torque Or the efficiency and noise and vibration situation of the power source are when meeting the second condition, the clutch is cut It is changed to paralleling model work.

Alternatively, the default first condition, including：Engine is in starting state and motor Idling speed of the rotating speed more than engine.

Alternatively, if the clutch is in paralleling model, if power source can be made to provide more Big driving torque, including：

The first maximum torsion that whether power source can be provided when judging operator demand's moment of torsion more than series model Square；

The first peak torque that power source can be provided when it is determined that operator demand's moment of torsion is more than series model When, whether the second peak torque that the power source can be provided when judging paralleling model is more than described first Peak torque；

When it is determined that second peak torque is more than first peak torque, determine at the clutch In paralleling model, power source can be made to provide bigger driving torque.

Alternatively, the second condition, including：It is described dynamic when the clutch is in paralleling model The efficiency in power source more than the clutch be in present mode when efficiency, and the vehicle noise and vibration Parameter is less than predetermined threshold value.

Alternatively, whether the efficiency for judging power source and noise and vibration situation meet default second condition, Including：

Judge the rotating speed of the motor whether more than default first rotating speed and less than default second rotating speed；

When the rotating speed of the motor is more than default first rotating speed and is less than default second rotating speed, it is determined that The efficiency for being in power source described in paralleling model in the clutch is in present mode more than the clutch When efficiency, and the vehicle noise and vibration parameter be less than predetermined threshold value.

The embodiment of the invention provides a kind of control method of clutch operating mode switching, methods described bag Include：

When the operating mode of the engine and the motor meets the first condition, power source is judged Premode can not meet operator demand's moment of torsion in the case of, if the clutch be in paralleling model When, if the power source can be made to provide bigger driving torque；

When it is determined that the clutch is in paralleling model, the power source being made to provide bigger driving torque When, switch to paralleling model to work on the clutch.

Alternatively, if the judgement clutch is in paralleling model, if power source can be made to provide more Big driving torque, including：

The first peak torque that power source can be provided when it is determined that operator demand's moment of torsion is more than series model When, whether the second peak torque that power source can be provided when judging paralleling model is maximum more than described first Moment of torsion；

When it is determined that second peak torque is more than first peak torque, determine that clutch is in simultaneously Gang mould formula, can make power source provide bigger driving torque.

When the operating mode of the engine and motor meets the first condition, the effect of power source is judged Whether rate and noise and vibration situation meet default second condition；

When it is determined that the efficiency and noise and vibration situation of the power source meet the second condition, will be described Clutch switches to paralleling model to work.

Alternatively, the default first condition, including：The engine is in starting state and drives electricity Idling speed of the rotating speed of machine more than engine.

Alternatively, the second condition, including：The noise and vibration parameter of vehicle is less than predetermined threshold value.

When the rotating speed of the motor is more than default first rotating speed and is less than default second rotating speed, it is determined that The efficiency and noise and vibration situation of power source meet the second condition.

When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first condition Or the acceleration of motor is negative value, and whether the absolute value of the acceleration is more than preset first threshold value Or whether the rotating speed of the motor is less than default 3rd rotating speed；

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in string During gang mould formula, can prevent power source premode from meeting operator demand's moment of torsion in the case of, carry For bigger driving torque, or series model can meet the efficiency of the power source in the case of demand torque It is higher, or series model can meet engine noise vibration in the case of demand torque and meet default Article 3 Part；

When it is determined that the acceleration of the motor is negative value, and the acceleration absolute value more than default The rotating speed of first threshold or the motor is less than default 3rd rotating speed, if or clutch be in series connection mould During formula, can start the power source bigger driving torque of offer or the in hgher efficiency or described of the power source Machine noise and vibration meet default third condition, and the clutch is switched into tandem working pattern.

Alternatively, the first condition, including：

Driving torque or institute that when operator demand's moment of torsion is more than paralleling model, power source can be provided During the driving torque that power source can be provided when stating operator demand's moment of torsion less than series model, it is determined that described Operator demand's moment of torsion meets the first condition.

Alternatively, the 3rd rotating speed is the engine idle rotational.

Alternatively, if the judgement clutch is in series model, more whether the efficiency of the power source Height, including：

Judge the rotating speed of the motor whether less than default 4th rotating speed；

When the rotating speed of the motor is less than four rotating speed, power during series model is determined Source it is in hgher efficiency.

Alternatively, the third condition, including：It is described when the clutch is in non-paralleling model The efficiency of power source more than the clutch be in paralleling model when efficiency, and vehicle noise and vibration Less than predetermined threshold value.

Alternatively, whether the efficiency for judging vehicle and noise and vibration situation meet default third condition, Including：

Judge the rotating speed of the motor whether more than default 5th rotating speed；

When the rotating speed of the motor is more than five rotating speed, determines the noise of the vehicle and shake Emotionally condition meets the third condition.

When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first condition Or the acceleration of motor is negative value, and whether the absolute value of the acceleration is more than preset first threshold value Or whether the rotating speed of the motor is less than the 3rd rotating speed；

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in string During gang mould formula, can prevent power source premode from meeting operator demand's moment of torsion in the case of provide Bigger driving torque or series model can meet the efficiency of the power source in the case of demand torque more It is high；

When it is determined that clutch is in series model, power source can be made to provide bigger driving torque or described The acceleration of the motor in hgher efficiency or described of power source be negative value, and the acceleration absolute value When rotating speed more than the first threshold or the motor is less than three rotating speed, by the clutch Device switches to series model by paralleling model.

Alternatively, the first condition, including：

Alternatively, the 3rd rotating speed is the engine idle rotational.

When the clutch is in paralleling model, judge whether drive demand moment of torsion meets default first Part；

When it is determined that the drive demand moment of torsion meets the first condition, engine noise and vibration are judged Whether satisfaction presets third condition；

When it is determined that the engine noise and vibration meet the third condition when, by the clutch by Paralleling model switches to series model.

Alternatively, the first condition, including：

During the driving torque that power source can be provided when operator demand's moment of torsion is less than series model, Determine that operator demand's moment of torsion meets the first condition.

Alternatively, the third condition, including：The noise of vehicle and vibration are less than predetermined threshold value.

Alternatively, whether the noise and vibration situation for judging vehicle meets default third condition, including：

Judge the rotating speed of motor whether more than default 5th rotating speed；

When the clutch is in paralleling model, the acceleration for judging motor is negative value, and described It is default whether whether the absolute value of acceleration be less than more than the rotating speed of preset first threshold value or the motor 3rd rotating speed；

When it is determined that the acceleration of the motor is negative value, and the acceleration absolute value more than described When the rotating speed of first threshold or the motor is less than three rotating speed, by the clutch by parallel connection Pattern switching is to series model.

Alternatively, the 3rd rotating speed is engine idle rotational.

When the clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first Condition；

When it is determined that the drive demand moment of torsion meets the first condition, if judging, clutch is in series connection During pattern, if power source can be made to provide bigger driving torque；

When it is determined that clutch is in series model, when power source can be made to provide bigger driving torque, will The clutch switches to series model by paralleling model.

Alternatively, the first condition, including：

During the driving torque that power source can be provided when operator demand's moment of torsion is more than paralleling model, Determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in string During gang mould formula, whether the efficiency of power source is higher；

When it is determined that clutch be in series model when, the power source it is in hgher efficiency when, by the clutch Device switches to series model by paralleling model.

Alternatively, the first condition, including：

Judge the rotating speed of motor whether less than default 4th rotating speed；

When it is determined that operator demand's moment of torsion meets the first condition, judge engine noise and shake It is dynamic whether to meet default third condition；

Alternatively, the first condition, including：

A kind of HCU is the embodiment of the invention provides, the HCU includes：

First judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and drive Whether the operating mode of dynamic motor meets default first condition；

Second judging unit, is suitable to meet the first condition when the operating mode of the engine and motor When, judge power source premode can not meet operator demand's moment of torsion in the case of, if the clutch When device is in paralleling model, if the power source can be made to provide bigger driving torque, or judge described Whether the efficiency of power source and the noise and vibration situation of vehicle meet default second condition；

First switch unit, is suitable to be in paralleling model when the determination clutch, can make the power Source provides bigger driving torque or the efficiency and noise and vibration situation of the power source meet the second condition When, switch to paralleling model to work on the clutch.

Alternatively, second judging unit, including：

First judgment sub-unit, power source when being suitable to whether judge operator demand's moment of torsion more than series model The first peak torque that can be provided；

Second judgment sub-unit, is suitable to determine operator demand's moment of torsion when first judgment sub-unit During the first peak torque that power source can be provided during more than series model, power source during paralleling model is judged Whether the second peak torque that can be provided is more than first peak torque, and works as determination described second most When high pulling torque is more than first peak torque, determine that clutch is in paralleling model, power source can be made Bigger driving torque is provided.

Alternatively, whether second judging unit, be suitable to judge the rotating speed of the motor more than pre- If the first rotating speed is simultaneously less than default second rotating speed；

A kind of HCU is the embodiment of the invention provides, the HCU includes：

3rd judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is No satisfaction presets the acceleration of first condition or motor for negative value, and the absolute value of the acceleration are Whether the no rotating speed more than preset first threshold value or the motor is less than default 3rd rotating speed；

4th judging unit, is suitable to determine that operator demand's moment of torsion meets when the 3rd judging unit During the first condition, if judge that clutch is in series model, if power source can be made to provide more Whether the efficiency of big driving torque or the power source higher or whether engine noise and vibration meet default Third condition；

Second switch unit, is suitable to when the 4th judging unit determines that clutch is in series model, Power source can be made to provide the in hgher efficiency or determination engine of bigger driving torque or the power source Noise and vibration meet the third condition or the rotating speed of motor described in the 3rd judging unit is big When whether the rotating speed of the 3rd rotating speed or the motor less than default three rotating speed, will it is described from Clutch switches to series model by paralleling model.

Alternatively, the first condition, including：

Alternatively, the 3rd rotating speed is the engine idle rotational.

Alternatively, whether the 4th judging unit, be suitable to judge the rotating speed of the motor less than pre- If the 4th rotating speed；

Alternatively, whether the 4th judging unit, be suitable to judge the rotating speed of the motor more than pre- If the 5th rotating speed, when the rotating speed of the motor is more than five rotating speed, the noise of vehicle is determined And Vibration Condition meets the third condition.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

5th judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and drive Whether the operating mode of dynamic motor meets default first condition；

6th judging unit, is suitable to meet the first condition when the operating mode of the engine and motor When, judge power source premode can not meet operator demand's moment of torsion in the case of, if the clutch When device is in paralleling model, if power source can be made to provide bigger driving torque；

3rd switch unit, is suitable to, when clutch is determined in paralleling model, power source can be made to provide more During big driving torque, paralleling model is switched to work on clutch.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

7th judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and drive Whether the operating mode of dynamic motor meets default first condition；

8th judging unit, is suitable to meet the first condition when the operating mode of the engine and motor When, judge whether the efficiency and noise and vibration situation of power source meet default second condition；

4th switch unit, is suitable to meet described when the efficiency and noise and vibration situation that determine the power source During second condition, paralleling model is switched to work on clutch.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

9th judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is No satisfaction presets the acceleration of first condition or motor for negative value, and the absolute value of the acceleration are Whether the no rotating speed more than preset first threshold value or the motor is less than the 3rd rotating speed；

Tenth judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge that if clutch is in series model, if power source can be made to provide bigger driving torque or described Whether the efficiency of power source is higher；

5th switch unit, is suitable to when it is determined that clutch is in series model, to provide power source The acceleration of the motor in hgher efficiency or described of bigger driving torque or the power source is negative value, and The absolute value of the acceleration is less than the described 3rd more than the rotating speed of the first threshold or the motor During rotating speed, the clutch is switched into series model by paralleling model.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

11st judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Whether satisfaction presets first condition；

12nd judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge whether the engine noise and vibration meet default third condition；

6th switch unit, is suitable to meet the third condition when the noise and vibration that determine the engine When, the clutch is switched into series model by paralleling model.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

13rd judging unit, is suitable to, when clutch is in paralleling model, judge the acceleration of motor It is negative value to spend, and the acceleration absolute value whether more than preset first threshold value or the motor Whether rotating speed is less than default 3rd rotating speed；

7th switch unit, is suitable to when the acceleration for determining the motor is negative value, and the acceleration When the absolute value of degree is less than three rotating speed more than the rotating speed of the first threshold or the motor, The clutch is switched into series model by paralleling model.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

14th judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Whether satisfaction presets first condition；

15th judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge that if clutch is in series model, if power source can be made to provide bigger driving torque；

8th switch unit, is suitable to when it is determined that clutch is in series model, to provide power source During bigger driving torque, the clutch is switched into series model by paralleling model.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

16th judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Whether satisfaction presets first condition；

17th judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge that if clutch is in series model, whether the efficiency of power source is higher；

9th switch unit, is suitable to when it is determined that clutch is in series model, the efficiency of the power source When higher, the clutch is switched into series model by paralleling model.

A kind of HCU is the embodiment of the invention provides, the HCU includes：

18th judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Whether satisfaction presets first condition；

19th judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge whether engine noise and vibration meet default third condition；

Tenth switch unit, is suitable to meet the third condition when the noise and vibration that determine the engine When, the clutch is switched into series model by paralleling model.

Compared with prior art, technical scheme has advantages below：

If clutch is currently at non-parallel operation pattern, when it is determined that clutch be in paralleling model, can When power source is provided bigger driving torque, or meet the in the efficiency and noise and vibration situation of power source During two conditions, cross and switch to paralleling model to work on clutch.Ensure that clutch is operated in can be car Provide under the pattern of more high pulling torque such that it is able to which support vehicles power is sufficient, therefore can improve driving peace Entirely, and can also avoid resonance, reduce noise, improve car comfort.

If clutch is currently at parallel operation pattern, if when it is determined that clutch is in series model, energy Power source is enough set to provide bigger driving torque, if or determining that clutch is in power source described in series model It is in hgher efficiency, if or determine clutch be in the noise of engine described in series model and vibration meet The third condition, if or determining that clutch is negative in the acceleration of motor described in series model Value, and the absolute value of the acceleration is less than institute more than the rotating speed of preset first threshold value or the motor When stating three rotating speeds, other mode of operations are switched to by by clutch.Ensure that clutch is operated in Can be provided under the pattern of more high pulling torque for vehicle such that it is able to which support vehicles power is sufficient, therefore can improve Traffic safety, and resonance can also be avoided, noise is reduced, improve car comfort.

Brief description of the drawings

Fig. 1 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Fig. 2 is a kind of structural representation of the HCU in the embodiment of the present invention；

Fig. 3 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Fig. 4 is a kind of structural representation of the HCU in the embodiment of the present invention；

Fig. 5 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Fig. 6 is a kind of structural representation of the HCU in the embodiment of the present invention；

Fig. 7 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Fig. 8 is a kind of structural representation of the HCU in the embodiment of the present invention；

Fig. 9 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 10 is a kind of structural representation of the HCU in the embodiment of the present invention；

Figure 11 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 12 is a kind of structural representation of the HCU in the embodiment of the present invention；

Figure 13 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 14 is a kind of structural representation of the HCU in the embodiment of the present invention；

Figure 15 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 16 is a kind of structural representation of the HCU in the embodiment of the present invention；

Figure 17 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 18 is a kind of structural representation of the HCU in the embodiment of the present invention；

Figure 19 is that a kind of flow of the control method of clutch operating mode switching in the embodiment of the present invention is shown It is intended to；

Figure 20 is a kind of structural representation of the HCU in the embodiment of the present invention.

Specific embodiment

Clutch has three kinds of mode of operations：Pure electric drive mode, series model and paralleling model.At present, The parallel operation mode switching method of clutch is that suddenly acceleration or climbing etc. need larger vehicle to drive only when vehicle When dynamic demand torque or required vehicle traction demand torque quickly increase, the clutch is controlled to enter simultaneously Connection mode of operation.However, the scheme that above-mentioned clutch operating mode is switched over easily causes the dynamic of vehicle Power is not enough, influences traffic safety, and also results in generation resonance, and noise is very big.

To solve the above problems, the control of HCU and clutch operating mode switching is the embodiment of the invention provides Method processed, if clutch is currently at non-parallel operation pattern, when it is determined that clutch be in paralleling model, It is when power source can be made to provide bigger driving torque or full in the efficiency and noise and vibration situation of power source During sufficient second condition, paralleling model is switched to work by by clutch.Ensure that clutch is operated in Can be provided under the pattern of more high pulling torque for vehicle such that it is able to which support vehicles power is sufficient, therefore can improve Traffic safety, and resonance can also be avoided, noise is reduced, improve car comfort.

It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings Specific embodiment of the invention is described in detail.

Fig. 1 shows a kind of stream of the control method of clutch operating mode switching in the embodiment of the present invention Journey schematic diagram.The specific steps of clutch operating mode switching are introduced during below with reference to Fig. 1.

S11：When clutch is in non-parallel operation pattern, judging the operating mode of engine and motor is It is no to meet default first condition.

In specific implementation, when being switched to parallel operation pattern in order to ensure clutch, engine will not nothing Method starts, or causes to stop working because rotating speed is too low, can be in non-parallel operation pattern in clutch When, judge whether engine and the operating mode of motor meet default first condition.

In an embodiment of the present invention, the first condition is that engine is in starting state and motor Rotating speed more than engine idling speed.

When the operating mode of the engine and motor meets the first condition, S12 is performed；Otherwise, Then end loop.

S12：Judge power source premode can not meet operator demand's moment of torsion in the case of, if clutch When device is in paralleling model, if power source can be made to provide bigger driving torque or the effect of power source is judged Whether the noise and vibration situation of rate and vehicle meets default second condition.

In specific implementation, can go to judge whether the mode of operation of switch clutch from each consideration angle, For example：In order to ensure power source can provide bigger driving torque for vehicle all the time, if can interpolate that from When clutch is in paralleling model, if power source can be made to provide bigger driving torque.Further for example, in order to Improve the comfortableness for driving so that the vibration of vehicle and noise drop to relatively low level, can interpolate that power Whether the efficiency in source and the noise and vibration situation of vehicle meet default second condition.

In an embodiment of the present invention, the second condition, including：It is in and gang mould in the clutch During formula, the efficiency when efficiency of the power source is more than the clutch in present mode, and the car Noise and vibration parameter be less than predetermined threshold value.

In specific implementation, it is limited to the type of the mode of operation of clutch, can be by judging that driver needs The first peak torque that whether power source can be provided when seeking moment of torsion more than series model；Then when it is determined that driving During the first peak torque that power source can be provided when the person's of sailing demand torque is more than series model, judge in parallel Whether the second peak torque that power source can be provided during pattern is more than first peak torque；Then when When determining that second peak torque is more than first peak torque, that is, determine that clutch is in and gang mould Formula, can make power source provide bigger driving torque.

In specific implementation, learnt according to real vehicle experience, the second rotating speed is power source under parallel operation pattern The efficiency rotating speed point higher than tandem working pattern, this rotating speed point is related to accelerator pedal position, represents different The efficient rotating speed point of correspondence under load, when the rotating speed of motor is higher than this second rotating speed, shows During parallel operation pattern, power source it is in hgher efficiency.Second rotating speed produces larger when being parallel operation pattern The rotating speed point of noise and vibration, second rotating speed is related to accelerator pedal position, under expression different load The correspondence larger rotating speed point of noise and vibration, engine speed is higher and larger (the accelerator pedal position of load It is deeper), easily resonate, noise and vibration problem is obvious.According to the characteristic of power source, first rotating speed Less than second rotating speed, therefore switch to the efficiency term and noise and vibration considered during parallel operation pattern Condition does not conflict.

Again due to tandem working pattern compared to pure motor join mode of operation, engine can to battery charge from And more driving powers are provided, therefore series connection joins the driving torque ability of mode of operation necessarily not less than pure The driving torque ability of motor mode.

It is thus able to go to judge that the efficiency of power source and noise and vibration situation are by the characteristic of engine speed It is no to meet default second condition, such as can interpolate that the rotating speed of the motor whether more than default first Rotating speed is simultaneously less than default second rotating speed；

When it is determined that clutch is in paralleling model, power source being made to provide bigger driving torque or power source Efficiency and noise and vibration situation when meeting the second condition, perform S13；Otherwise, then terminate.

S13：Paralleling model is switched to work on clutch.

In specific implementation, in order to ensure power source can provide bigger driving torque for vehicle all the time, Determination clutch can be worked as and be in paralleling model, when power source can be made to provide bigger driving torque, Paralleling model is switched to work on clutch.And in order to lift the comfortableness of driving, it is also possible to power source When efficiency and noise and vibration situation meet the second condition, paralleling model is switched to work on clutch.

To cause that those skilled in the art is better understood from and realizes the present invention, the following provide in correspondence State the HCU of the control method of clutch operating mode switching.

Fig. 2 shows a kind of structural representation of the HCU in the embodiment of the present invention.The HCU can Including：First judging unit 1, the second judging unit 2 and the first switch unit 3, wherein：

First judging unit 1, is suitable to, when clutch is in non-parallel operation pattern, judge engine And whether the operating mode of motor meets default first condition；

Second judging unit 2, is suitable to determine the engine and driving when first judging unit 1 When the operating mode of motor meets the first condition, judge power source premode can not meet driver's need In the case of seeking moment of torsion, if clutch is in paralleling model, if power source can be made to provide bigger drive Dynamic torque judges whether the efficiency of power source and the noise and vibration situation of vehicle meet default second condition；

First switch unit 3, is suitable to determine that clutch is in and gang mould when second judging unit 2 Formula, can make the bigger driving torque of power source offer or the efficiency and noise and vibration situation of power source meet institute When stating second condition, paralleling model is switched to work on clutch.

In specific implementation, the default first condition, including：Engine is in starting state and driving Idling speed of the rotating speed of motor more than engine.

In specific implementation, second judging unit 2, including：

First judgment sub-unit 21, power when being suitable to whether judge operator demand's moment of torsion more than series model The first peak torque that source can provide；

Second judgment sub-unit 22, is suitable to determine the operator demand when first judgment sub-unit 21 During the first peak torque that power source can be provided when moment of torsion is more than series model, judge dynamic during paralleling model Whether the second peak torque that power source can provide is more than first peak torque, and when determining described the When two peak torques are more than first peak torque, determine that clutch is in paralleling model, can make Power source provides bigger driving torque.

In specific implementation, the second condition, including：When the clutch is in paralleling model, The efficiency of the power source is in efficiency during present mode more than the clutch, and the vehicle is made an uproar Sound vibration parameters are less than predetermined threshold value.

In specific implementation, second judging unit 2, be suitable to judge the motor rotating speed whether More than default first rotating speed and less than default second rotating speed；

If it should be noted that due to when judgement clutch is in paralleling model, if power source can be made There is provided whether bigger driving torque meets default with the noise and vibration situation of the efficiency and vehicle that judge power source Second condition, the two judgements are to go to consider whether to carry out the mode of operation of clutch from different angles Switching, so the two being capable of individualism.Protection scope of the present invention is not caused to limit, as long as When disclosure satisfy that any one described Rule of judgment, and can accordingly perform clutch operating mode switching Work.

Fig. 3 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute The method of stating includes：

S31：When clutch is in non-parallel operation pattern, judging the operating mode of engine and motor is It is no to meet default first condition.

In specific implementation, the default first condition, including：Engine is in starting state and driving Idling speed of the rotating speed of motor more than engine.By judging that engine is in startup and eastern motor Rotating speed more than engine idling speed, it can be ensured that when clutch switches to paralleling model, Bu Huiyou It is too low in rotating speed and cause engine misses.

When the operating mode of the engine and motor meets the first condition, S32 is performed；Otherwise, Then terminate.

S32：Judge power source premode can not meet operator demand's moment of torsion in the case of, if clutch When device is in paralleling model, if power source can be made to provide bigger driving torque.

In specific implementation, to ensure that power source can provide bigger power for vehicle, can work as described When the operating mode of engine and motor meets the first condition, if judging, clutch is in paralleling model When, if power source can be made to provide bigger driving torque.

In an embodiment of the present invention, judged by following method：

The first maximum torsion that power source can be provided when whether operator demand's moment of torsion is more than series model first Square, first that then power source can be provided when it is determined that operator demand's moment of torsion is more than series model is maximum During moment of torsion, whether the second peak torque that power source can be provided when judging paralleling model is more than described first Peak torque, then when it is determined that second peak torque is more than first peak torque, it is determined that from Clutch is in paralleling model, and power source can be made to provide bigger driving torque.

When it is determined that clutch be in paralleling model, can make power source provide bigger driving torque when, then hold Row S33, otherwise, then terminates.

S33：Paralleling model is switched to work on clutch.

In specific implementation, when it is determined that clutch is in paralleling model, vehicle more power is enabled to When sufficient, clutch operating mode can be switched to paralleling model.

To cause that those skilled in the art more fully understand and realizes the present invention, figure 4 below there is provided for With a kind of HCU of the middle clutch method for handover control of the embodiment shown in Fig. 3, the HCU can Including：5th judging unit 41, the 6th judging unit 42 and the 3rd switch unit 43, wherein：

5th judging unit 41, is suitable to, when clutch is in non-parallel operation pattern, judge to start Whether the operating mode of machine and motor meets default first condition, the default first condition, including：Hair Motivation is in the idling speed of the rotating speed more than engine of starting state and motor.；

6th judging unit 42, is suitable to meet described the when the operating mode of the engine and motor During one condition, judge power source premode can not meet operator demand's moment of torsion in the case of, if from When clutch is in paralleling model, if power source can be made to provide bigger driving torque；

3rd switch unit 43, is suitable to be in paralleling model when determination clutch, can make power source When providing bigger driving torque, paralleling model is switched to work on clutch.

Fig. 5 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute The method of stating can include：

S51：When clutch is in non-parallel operation pattern, judging the operating mode of engine and motor is It is no to meet default first condition.

In specific implementation, the default first condition is that engine is in starting state and motor Idling speed of the rotating speed more than engine.

When the operating mode of the engine and motor meets the first condition, S52 is performed；Otherwise, Then terminate.

S52：Judge whether the efficiency and noise and vibration situation of power source meet default second condition.

In specific implementation, the efficiency and noise and vibration situation of power source can be judged by following method Whether satisfaction presets second condition：Whether more than default first rotating speed simultaneously to judge the rotating speed of the motor Less than default second rotating speed；

In an embodiment of the present invention, the second condition is the noise and vibration parameter of the vehicle less than pre- If threshold value.

When it is determined that the efficiency and noise and vibration situation of the power source meet the second condition, perform S53；Otherwise, then terminate.

S53：Paralleling model is switched to work on clutch.

In specific implementation, when it is determined that the efficiency of power source can be higher, and noise and vibration situation compares When rationally, paralleling model can be switched to work clutch such that it is able to which it is comfortable that lifting drives Property.

To cause that those skilled in the art more fully understands and realize the present invention, Fig. 6 shows corresponding diagram 5 The structure chart of the corresponding HCU of control method of the clutch operating mode switching in the embodiment for showing, institute Stating HCU can include：7th judging unit 61, the 8th judging unit 62 and the 4th switch unit 63, Wherein：

7th judging unit 61, is suitable to, when clutch is in non-parallel operation pattern, judge to start Whether the operating mode of machine and motor meets default first condition, the default first condition, including：Hair Motivation is in the idling speed of the rotating speed more than engine of starting state and motor.；

8th judging unit 62, is suitable to meet described the when the operating mode of the engine and motor During one condition, judge whether the efficiency and noise and vibration situation of power source meet default second condition, it is described Second condition, including：When the clutch is in paralleling model, the efficiency of the power source is more than institute Efficiency when stating clutch in present mode, and the noise and vibration parameter of the vehicle is less than predetermined threshold value；

4th switch unit 63, is suitable to when the efficiency and noise and vibration situation that determine the power source are full During the foot second condition, paralleling model is switched to work on clutch.

The embodiment of the present invention additionally provides the control method of another HCU and clutch operating mode switching, If clutch is currently at parallel operation pattern, if when it is determined that clutch is in series model, can Make power source provide the engine in hgher efficiency or described of bigger driving torque or the power source noise and The acceleration that vibration meets the third condition or the motor is negative value, and the acceleration is exhausted When being less than three rotating speed more than the rotating speed of preset first threshold value or the motor to value, by inciting somebody to action Clutch switches to other mode of operations.Ensure that clutch is operated in can be for vehicle provides more high pulling torque Pattern under such that it is able to support vehicles power is sufficient, therefore can improve traffic safety, and can also keep away Exempt from resonance, reduce noise, improve car comfort.

Fig. 7 shows the control method of another clutch operating mode switching in the embodiment of the present invention Schematic flow sheet.Below with reference to Fig. 7 to clutch from parallel operation pattern switching to other mode of operations Specific steps describe in detail.

S71：When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first Condition.

In specific implementation, the control to clutch operating mode switching can be considered from multiple angles.Example Such as, in order to ensure the flame-out problem caused because rotating speed is too low occur in engine, can interpolate that driving The acceleration of motor is negative value, and whether the absolute value of the acceleration is more than preset first threshold value, compares again Such as, can interpolate that the rotating speed of the motor whether less than default 3rd rotating speed.

In specific implementation, the drive that power source can be provided when operator demand's moment of torsion is more than paralleling model The driving torque that power source can be provided when dynamic torque or operator demand's moment of torsion are less than series model When, determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, step S73 is performed, conversely, Then terminate flow.

S72：When clutch is in paralleling model, the acceleration for judging motor is negative value, and described It is default whether whether the absolute value of acceleration be less than more than the rotating speed of preset first threshold value or the motor 3rd rotating speed.In specific implementation, the 3rd rotating speed is the engine idle rotational.

When the clutch processes paralleling model, the acceleration of the motor is determined for negative value, and The absolute value of the acceleration more than the first threshold or the motor rotating speed less than described the During three rotating speeds, step S74 is performed；Conversely, then terminating flow.

S73：If judge clutch be in series model, if can prevent power source premode from Bigger driving torque or series model are provided in the case of meeting operator demand's moment of torsion can meet demand torsion Whether the efficiency of the power source is higher or in the case that series model can meet demand torque in the case of square Whether the engine noise vibration meets default third condition.

It should be noted that the order of S71 and S73 can change, S71 can be first carried out, then perform S73, the particular order regardless of S71 and the S73 is not constituted to the present invention and limited, and all exists Within protection scope of the present invention.

In specific implementation, in order to ensure that power source can provide bigger power for vehicle, if can interpolate that When clutch is in series model, if power source can be made to provide bigger driving torque or the power source Efficiency it is whether higher.And in order to lift the comfortableness of vehicle drive, can interpolate that the engine noise And whether vibration meets default third condition.

In an embodiment of the present invention, the third condition includes：Non- and gang mould is in the clutch During formula, the efficiency when efficiency of the power source is more than the clutch in paralleling model, and the car Noise and vibration be less than predetermined threshold value.

In specific implementation, power source efficiency is than string under can determine parallel operation pattern according to real vehicle experience Connection mode of operation rotating speed point high, this rotating speed point is related to accelerator pedal position, under expression different load The efficient rotating speed point of correspondence, for convenience of description, the 4th rotating speed is referred to as by this rotating speed point.Work as motor Rotating speed be higher than four rotating speed when, when showing parallel operation pattern, power source it is in hgher efficiency.

Equally, in the presence of producing larger noise and vibration when can determine parallel operation pattern according to real vehicle experience Rotating speed point, the rotating speed point of the larger noise and vibration of generation is related to accelerator pedal position, represents different negative The larger rotating speed point of corresponding noise and vibration under lotus, for convenience of description, the 5th rotating speed is referred to as by this rotating speed point. It is higher in engine speed and load is larger (accelerator pedal position is deeper), easily resonate, noise and vibration Problem is obvious.I.e. when the rotating speed of motor is higher than five rotating speed, show that noise and vibration situation surpasses Cross predetermined threshold value.According to the characteristic of power source, the 4th rotating speed is less than the 5th rotating speed, therefore switches The efficiency term and noise and vibration condition considered during by parallel operation pattern do not conflict.

Again due to tandem working pattern compared to pure motor join mode of operation, engine can to battery charge from And more driving powers are provided, therefore for same vehicle, the driving torque ability of tandem working pattern The driving torque ability of usually not less than pure motor mode, it is thus possible to gone by the characteristic of engine speed Judge whether the efficiency and noise and vibration situation of power source meet default third condition.

If than if by following methods judge clutch be in series model when, the effect of the power source Whether rate is higher：Judge the rotating speed of the motor whether less than default 4th rotating speed；When the driving When the rotating speed of motor is less than four rotating speed, the in hgher efficiency of power source during series model is determined. Also can judge whether the efficiency and noise and vibration situation of vehicle meet default Article 3 by following methods Part, including：Judge the rotating speed of the motor whether more than default 5th rotating speed；Electricity is driven when described When the rotating speed of machine is more than five rotating speed, determine that the noise and Vibration Condition of the vehicle meet described the Three conditions.

When it is determined that clutch is in series model, power source can be made to provide bigger driving torque or described When the noise of the engine in hgher efficiency or described of power source and vibration meet the third condition, perform S74, otherwise, then terminates.

S74：The clutch is switched into series model by paralleling model.

In specific implementation, when it is determined that clutch is in series model, can provide power source bigger The noise of the engine in hgher efficiency or described of driving torque or the power source and vibration meet the described 3rd The acceleration of condition or the motor is negative value, and the absolute value of the acceleration is more than default first When the rotating speed of threshold value or the motor is less than three rotating speed, by the clutch exit it is described simultaneously Gang mould formula, switches to other mode of operations, such as allow hand over to the work entered before the paralleling model Operation mode, it is also possible to which series model or pure motor mode are switched to according to corresponding situation.So, with regard to energy Enough ensure that clutch is operated in the situation for causing that power source is in hgher efficiency, while can also ensure that relaxing for driving Adaptive.

It is also provided below corresponding to cause that those skilled in the art more fully understands and realize the present invention The HCU of the control method of above-mentioned clutch operating mode switching.

The structural representation of another HCU in the embodiment of the present invention as shown in Figure 8.The HCU Can include：3rd judging unit 4, the 4th judging unit 5 and the second switch unit 6, wherein：

3rd judging unit 4, is suitable to, when clutch is in paralleling model, judge that operator demand turns round The acceleration whether square meets default first condition or motor is negative value, and the acceleration is absolute Whether whether value be less than default 3rd rotating speed more than the rotating speed of preset first threshold value or the motor；

4th judging unit 5, is suitable to determine that the operator demand turns round when the 3rd judging unit 4 When square meets the first condition, if judge that clutch is in series model, if power source can be made There is provided bigger driving torque or the power source whether efficiency higher or the engine noise and vibration are It is no to meet default third condition；

Second switch unit 6 described in 3rd judging unit 4, be suitable to when the 4th judging unit 5 determine from When clutch is in series model, power source can be made to provide the efficiency of bigger driving torque or the power source Noise higher or determining the engine and vibration meet the third condition or the 3rd judging unit It is pre- whether the rotating speed of motor described in 4 is less than more than the rotating speed of the 3rd rotating speed or the motor If during three rotating speeds, the clutch is exited into the paralleling model.

In specific implementation, the first condition, including：

In specific implementation, the 3rd rotating speed is the engine idle rotational.

In specific implementation, the 4th judging unit 5 is suitable to judge whether the rotating speed of the motor is small In default 4th rotating speed；

In specific implementation, the third condition, including：When the clutch is in non-paralleling model, The efficiency of the power source is in efficiency during paralleling model more than the clutch, and the vehicle is made an uproar Sound and vibration are less than predetermined threshold value.

In specific implementation, the 4th judging unit 5 is suitable to judge whether the rotating speed of the motor is big In default 5th rotating speed；

If it should be noted that due to when judgement clutch is in series model, if power source can be made There is provided whether bigger driving torque meets default with the noise and vibration situation of the efficiency and vehicle that judge power source Third condition, the two judgements are to go to consider whether to carry out the mode of operation of clutch from different angles Switching, in short, in specific implementation, as needed, if in order to provide preferably dynamic to vehicle Power performance, when only can be in series model to clutch, if power source can be made to provide bigger driving Moment of torsion is judged, and takes corresponding operation；If the noise in order to reduce vehicle, vehicle is improved Comfortableness, then when only can be in series model to clutch, the efficiency of power source and the noise of vehicle Whether vibration state meets default third condition is judged.

, it is understood that as needed, it is also possible to which such scheme is entered with other schemes separately or together Row connected applications.The specific embodiment that above-described embodiment is used is merely to illustrate the present invention, not right Protection scope of the present invention causes to limit, as long as when disclosure satisfy that any one described Rule of judgment, and energy Accordingly perform the work of clutch operating mode switching.

Fig. 9 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute Stating control method can include：

S91：When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first Condition.

In specific implementation, in order to ensure to provide bigger power for vehicle, clutch can be worked as and be in simultaneously During gang mould formula, judge whether operator demand's moment of torsion meets default first condition

In an embodiment of the present invention, the power source energy when operator demand's moment of torsion is more than paralleling model Power source can be provided when enough driving torques of offer, or operator demand's moment of torsion are less than series model Driving torque when, determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, S93 is performed；Otherwise, then tie Line journey.

S92：The acceleration for judging motor is negative value, and the acceleration absolute value whether more than pre- If whether the rotating speed of first threshold or the motor is less than the 3rd rotating speed.

When the acceleration of motor is negative value, and the absolute value of the acceleration is more than preset first threshold value Or the rotating speed of the motor is when being less than three rotating speed, step S94 is performed；Conversely, then terminating stream Journey.

S93：If judge clutch be in series model, if can prevent power source premode from There is provided whether bigger driving torque or series model can meet need in the case of meeting operator demand's moment of torsion Ask the in hgher efficiency of the power source in the case of moment of torsion.

It is described if can by the following method judge that clutch is in series model in specific implementation Whether whether the efficiency of power source is higher, first determine whether the rotating speed of the motor less than default 4th turn Speed, then when the rotating speed of the motor is less than four rotating speed, described in when determining series model Power source it is in hgher efficiency.

When it is determined that clutch is in series model, power source can be made to provide bigger driving torque or described The acceleration of the motor in hgher efficiency or described of power source be negative value, and the acceleration absolute value When rotating speed more than the first threshold or the motor is less than three rotating speed, S94 is performed；It is no Then, then flow is terminated.

It should be noted that the order of S91 and S93 can change, S91 can be first carried out, then perform S93, the particular order regardless of S91 and the S93 is not constituted to the present invention and limited, and all exists Within protection scope of the present invention.In specific implementation, if when being able to ensure that clutch switches to work in parallel During operation mode, after will not causing engine misses, if can interpolate that clutch is in series model, Whether power source can be made to provide bigger driving torque, it is also possible to if judge that clutch is in series model, Whether the efficiency of the power source is higher.

S94：The clutch is switched into series model by paralleling model.

In specific implementation, the clutch is switched into series model by paralleling model, so that dynamic Power source can provide bigger power for vehicle, it is ensured that the security of vehicle.

To cause that those skilled in the art more fully understands and realize the present invention, Figure 10 shows and corresponds to The HCU in embodiment shown in Fig. 9, the HCU can include：9th judging unit the 101, the tenth The switch unit 103 of judging unit 102 and the 5th, wherein：

9th judging unit 101, is suitable to, when clutch is in paralleling model, judge operator demand The acceleration whether moment of torsion meets default first condition or motor is negative value, and the acceleration is exhausted Whether whether the rotating speed for being more than preset first threshold value or the motor to value is less than the 3rd rotating speed, The first condition, including：When operator demand's moment of torsion is more than paralleling model, power source can be carried The driving that power source can be provided when the driving torque of confession or operator demand's moment of torsion are less than series model During moment of torsion, determine that operator demand's moment of torsion meets the first condition；

Tenth judging unit 102, is suitable to meet described first when determination operator demand's moment of torsion During part, if judge that clutch is in series model, if power source can be made to provide bigger driving torque Or whether the efficiency of the power source is higher；

5th switch unit 103, is suitable to that when it is determined that clutch is in series model, power can be made The acceleration that source provides the motor in hgher efficiency or described of bigger driving torque or the power source is negative Value, and the absolute value of the acceleration is less than institute more than the rotating speed of the first threshold or the motor When stating three rotating speeds, the clutch is switched into series model by paralleling model.

Figure 11 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute The method of stating can include：

S111：When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default the One condition.

In an embodiment of the present invention, the power source energy when operator demand's moment of torsion is less than series model During the driving torque of enough offers, determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, S112 is performed；Conversely, then Terminate.

S112：Judge whether the engine noise and vibration meet default third condition.

In an embodiment of the present invention, the third condition, including：The noise of the vehicle and vibration are low In predetermined threshold value.

In specific implementation, whether the noise and vibration situation for judging vehicle meets default third condition, Whether the rotating speed of the motor is first determined whether more than default 5th rotating speed, then when the motor Rotating speed be more than five rotating speed when, determine that the noise and Vibration Condition of the vehicle meet the described 3rd Condition.

When it is determined that the engine noise and vibration meet the third condition when, perform S113；Conversely, Then terminate.

S113：The clutch is switched into series model by paralleling model.

In specific implementation, in order to lift the driver comfort of vehicle, can work as and determine the engine When noise and vibration meet the third condition, the clutch is switched into series model by paralleling model.

To cause that those skilled in the art more fully understands and realize the present invention, Figure 12 shows and corresponds to The structure chart of the HCU in embodiment shown in Figure 11, the HCU can include：11st judges single First 111, the 12nd judging unit 112 and the 6th switch unit 113, wherein：

11st judging unit 111, is suitable to, when clutch is in paralleling model, judge that operator demand turns round Whether square meets default first condition, the power source energy when operator demand's moment of torsion is more than paralleling model Power source can be provided when enough driving torques for providing or operator demand's moment of torsion are less than series model During driving torque, determine that operator demand's moment of torsion meets the first condition；

12nd judging unit 112, is suitable to meet the first condition when determination operator demand's moment of torsion When, judge whether the engine noise and vibration meet default third condition, the third condition, bag Include：When the clutch is in non-paralleling model, the efficiency of the power source is more than at the clutch Efficiency when paralleling model, and the vehicle noise and vibration be less than predetermined threshold value；

6th switch unit 113, is suitable to meet the Article 3 when the noise and vibration that determine the engine During part, the clutch is switched into series model by paralleling model.

Figure 13 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute The method of stating can include：

S131：When clutch is in paralleling model, the acceleration for judging motor is negative value, and institute Whether whether the absolute value for stating acceleration be less than in advance more than the rotating speed of preset first threshold value or the motor If the 3rd rotating speed.

When it is determined that the acceleration of the motor is negative value, and the acceleration absolute value more than described When the rotating speed of first threshold or the motor is less than three rotating speed, S132 is performed；Otherwise, then Terminate.

S132：The clutch is switched into series model by paralleling model.

In specific implementation, when it is determined that the acceleration of the motor is negative value, and the acceleration When absolute value is less than three rotating speed more than the rotating speed of the first threshold or the motor, by institute State clutch and series model is switched to by paralleling model, ensure that engine will not be because rotating speed be too low Cause to stop working.

To cause that those skilled in the art more fully understands and realize the present invention, Figure 14 shows and corresponds to The HCU of the control method of the clutch operating mode switching described in Figure 13, the HCU can include： 13rd judging unit 141 and the 7th switch unit 142, wherein：

13rd judging unit 141, is suitable to, when clutch is in paralleling model, judge motor Acceleration be negative value, and the acceleration absolute value whether be more than preset first threshold value or the driving Whether less than default 3rd rotating speed, the 3rd rotating speed is the engine idle rotational to the rotating speed of motor；

7th switch unit 142, is suitable to when the acceleration for determining the motor is negative value, and institute The absolute value for stating acceleration is less than described 3rd turn more than the rotating speed of the first threshold or the motor When fast, the clutch is switched into series model by paralleling model.

Figure 15 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute Stating control method can include：

S151：When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default the One condition.

In specific implementation, when operator demand's moment of torsion is more than paralleling model, power source can be provided Driving torque when, determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, S152 is performed；Otherwise, then Terminate.

S152：Judge that if clutch is in series model, if power source can be made to provide bigger driving Moment of torsion.

In specific implementation, in order that the power source power bigger for vehicle is provided, if can interpolate that from When clutch is in series model, if power source can be made to provide bigger driving torque.

When it is determined that clutch is in series model, when power source can be made to provide bigger driving torque, hold Row S153；Conversely, then terminating flow.

S153：The clutch is switched into series model by paralleling model.

In specific implementation, the clutch can be switched to series model by paralleling model.By this Plant the dynamic property that handover scheme ensure that vehicle drive

To cause that those skilled in the art more fully understands and realize the present invention, illustrated referring to Figure 16 Can realize that a kind of HCU of the above method, the HCU can include：14th judging unit 161, 15th judging unit 162 and the 8th switch unit 163, wherein：

14th judging unit 161, is suitable to, when clutch is in paralleling model, judge that driver needs Ask whether moment of torsion meets default first condition, the power when operator demand's moment of torsion is more than paralleling model Power source can be carried when the driving torque or operator demand's moment of torsion that source can provide are less than series model During the driving torque of confession, determine that operator demand's moment of torsion meets the first condition；

15th judging unit 162, is suitable to meet described first when determination operator demand's moment of torsion During condition, if judge that clutch is in series model, if power source can be made to provide bigger driving and turned round Square；

8th switch unit 163, is suitable to that when it is determined that clutch is in series model, power can be made When source provides bigger driving torque, the clutch is switched into series model by paralleling model.

Figure 17 shows a kind of control method of clutch operating mode switching in the embodiment of the present invention, institute The method of stating can include：

S171:When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first Condition.

In an embodiment of the present invention, the power source energy when operator demand's moment of torsion is more than paralleling model During the driving torque of enough offers, can determine that operator demand's moment of torsion meets the first condition.

When it is determined that operator demand's moment of torsion meets the first condition, S172 is performed；Conversely, then Terminate flow.

S172：Judge that if clutch is in series model, whether the efficiency of the power source is higher.

In specific implementation, when can judge series model by the following method, the efficiency of the power source It is whether higher：Whether the rotating speed of the motor is judged less than default 4th rotating speed, then when the drive When the rotating speed of dynamic motor is less than four rotating speed, the in hgher efficiency of power source during series model is determined. When it is determined that clutch be in series model when, the power source it is in hgher efficiency when, perform S173；Conversely, Then terminate.

S173:The clutch is switched into series model by paralleling model.

In specific implementation, in order to ensure the dynamic property of vehicle drive, determination clutch can be worked as and be in string During gang mould formula, the power source it is in hgher efficiency when, the clutch is switched into series connection by paralleling model Pattern.

To cause that those skilled in the art more fully understands and realize the present invention, Figure 18 shows and corresponds to The HCU in embodiment shown in Figure 17, the HCU can include：16th judging unit 181, 17th judging unit 182 and the 9th switch unit 183, wherein：

16th judging unit 181, is suitable to, when clutch is in paralleling model, judge that driver needs Ask whether moment of torsion meets default first condition, the power when operator demand's moment of torsion is more than paralleling model Power source can be carried when the driving torque or operator demand's moment of torsion that source can provide are less than series model During the driving torque of confession, determine that operator demand's moment of torsion meets the first condition；

17th judging unit 182, is suitable to meet described first when determination operator demand's moment of torsion During condition, if judge that clutch is in series model, whether the efficiency of the power source is higher；

9th switch unit 183, is suitable to when it is determined that clutch is in series model, the power source It is in hgher efficiency when, the clutch is switched into series model by paralleling model.

Figure 19 shows the control method of another clutch operating mode switching in the embodiment of the present invention Schematic flow sheet.

S191：When clutch is in paralleling model, judge whether operator demand's moment of torsion meets default the One condition.

When it is determined that operator demand's moment of torsion meets the first condition, S193 is performed；Otherwise, then Terminate flow.

S192：The acceleration for judging motor is negative value, and whether the absolute value of the acceleration is more than Whether the rotating speed of preset first threshold value or the motor is less than the 3rd rotating speed.

When the acceleration of motor is negative value, and the absolute value of the acceleration is more than preset first threshold value Or the rotating speed of the motor is when being less than three rotating speed, step S194 is performed；Conversely, then terminating Flow.

S193：If judge clutch be in series model, if can make power source premode not There is provided whether bigger driving torque or series model can meet in the case of operator demand's moment of torsion can be met The power source is in hgher efficiency in the case of demand torque.

When it is determined that clutch is in series model, power source can be made to provide bigger driving torque or described The acceleration of the motor in hgher efficiency or described of power source be negative value, and the acceleration absolute value When rotating speed more than the first threshold or the motor is less than three rotating speed, S194 is performed； Otherwise, then flow is terminated.

It should be noted that the order of S191 and S193 can change, S191 can be first carried out, then hold Row S193, the particular order regardless of S191 and the S193 is not constituted to the present invention and limited, And all within protection scope of the present invention.In specific implementation, if when being able to ensure that clutch switches to During parallel operation pattern, will not cause after engine misses, if can interpolate that, clutch is in series connection mould During formula, if power source can be made to provide bigger driving torque, it is also possible to which if judging, clutch is in series connection During pattern, whether the efficiency of the power source is higher.

S194：The clutch is switched into series model by paralleling model.

To cause that those skilled in the art more fully understands and realize the present invention, Figure 20 shows and corresponds to The HCU in embodiment shown in Figure 19, the HCU can include：18th judging unit 201, 19th judging unit 202 and the tenth switch unit 203, wherein：

18th judging unit 201, is suitable to, when clutch is in paralleling model, judge that driver needs Whether the acceleration for asking moment of torsion to meet default first condition or motor is negative value, and the acceleration Whether whether absolute value be less than described 3rd turn more than the rotating speed of preset first threshold value or the motor Speed, the first condition, including：The power source energy when operator demand's moment of torsion is more than paralleling model Power source can be provided when enough driving torques for providing or operator demand's moment of torsion are less than series model During driving torque, determine that operator demand's moment of torsion meets the first condition；

19th judging unit 202, is suitable to meet described first when determination operator demand's moment of torsion During condition, if judge that clutch is in series model, if power source can be made to provide bigger driving and turned round Whether the efficiency of square or the power source is higher；

Tenth switch unit 203, is suitable to that when it is determined that clutch is in series model, power can be made The acceleration that source provides the motor in hgher efficiency or described of bigger driving torque or the power source is negative Value, and the absolute value of the acceleration is less than institute more than the rotating speed of the first threshold or the motor When stating three rotating speeds, the clutch is switched into series model by paralleling model.

The skilled artisan will appreciate that all or part of step in the various methods of above-described embodiment Suddenly it is that related hardware can be instructed to complete by program, the program can be stored in can with computer Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..

Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore guarantor of the invention Shield scope should be defined by claim limited range.

Claims

1. the control method that a kind of clutch operating mode switches, it is characterised in that including：

When the clutch is in non-parallel operation pattern, judge engine and motor operating mode whether Meet default first condition；

When the operating mode of the engine and motor meets the first condition, judge power source before In the case that pattern can not meet operator demand's moment of torsion, if the clutch is in paralleling model, Whether the power source can be made to provide bigger driving torque, or the efficiency and car for judging the power source Noise and vibration situation whether meet default second condition；

When it is determined that the clutch is in paralleling model, can make the power source provide bigger driving torque or When the efficiency and noise and vibration situation of the power source meet the second condition, the clutch is cut It is changed to paralleling model work.

2. the control method that clutch operating mode according to claim 1 switches, it is characterised in that institute Default first condition is stated, including：Engine is in the rotating speed of starting state and motor more than starting The idling speed of machine.

3. the control method that clutch operating mode according to claim 1 switches, it is characterised in that institute If state the clutch in paralleling model, if power source can be made to provide bigger driving torque, Including：

The first peak torque that power source can be provided when it is determined that operator demand's moment of torsion is more than series model When, whether the second peak torque that the power source can be provided when judging paralleling model is more than described the One peak torque；

When it is determined that second peak torque is more than first peak torque, determine that the clutch is in Paralleling model, can make power source provide bigger driving torque.

4. the control method that clutch operating mode according to claim 1 switches, it is characterised in that institute Second condition is stated, including：When the clutch is in paralleling model, the efficiency of the power source is big The efficiency when clutch is in present mode, and the vehicle noise and vibration parameter less than pre- If threshold value.

5. the control method that clutch operating mode according to claim 4 switches, it is characterised in that institute State the efficiency that judges power source and whether noise and vibration situation meets default second condition, including：

When the rotating speed of the motor is more than default first rotating speed and is less than default second rotating speed, it is determined that The efficiency that the clutch is in power source described in paralleling model is in present mode more than the clutch When efficiency, and the vehicle noise and vibration parameter be less than predetermined threshold value.

6. the control method that a kind of clutch operating mode switches, it is characterised in that including：

When the operating mode of the engine and the motor meets the first condition, judge that power source exists Premode can not meet operator demand's moment of torsion in the case of, if the clutch be in paralleling model When, if the power source can be made to provide bigger driving torque；

When it is determined that the clutch is in paralleling model, when the power source can be made to provide bigger driving torque, Paralleling model is switched to work on the clutch.

7. the control method that clutch operating mode according to claim 6 switches, it is characterised in that institute Default first condition is stated, including：Engine is in the rotating speed of starting state and motor more than starting The idling speed of machine.

8. the control method that clutch operating mode according to claim 6 switches, it is characterised in that institute If state judgement clutch in paralleling model, if power source can be made to provide bigger driving torque, Including：

The first peak torque that power source can be provided when it is determined that operator demand's moment of torsion is more than series model When, whether more than described first most the second peak torque that power source can be provided when judging paralleling model High pulling torque；

When it is determined that second peak torque is more than first peak torque, determine that clutch is in parallel connection Pattern, can make power source provide bigger driving torque.

9. the control method that a kind of clutch operating mode switches, it is characterised in that including：

When the operating mode of the engine and motor meets the first condition, the efficiency of power source is judged And whether noise and vibration situation meets default second condition；

When it is determined that the efficiency and noise and vibration situation of the power source meet the second condition, will it is described from Clutch switches to paralleling model to work.

10. the control method that clutch operating mode according to claim 9 switches, it is characterised in that institute Default first condition is stated, including：The engine is in starting state and the rotating speed of motor is more than The idling speed of engine.

The control method of 11. clutch operating mode switchings according to claim 9, it is characterised in that institute Second condition is stated, including：The noise and vibration parameter of vehicle is less than predetermined threshold value.

The control method of 12. clutch operating mode switchings according to claim 11, it is characterised in that institute State the efficiency that judges power source and whether noise and vibration situation meets default second condition, including：

When the rotating speed of the motor is more than default first rotating speed and is less than default second rotating speed, it is determined that dynamic The efficiency and noise and vibration situation in power source meet the second condition.

A kind of 13. control methods of clutch operating mode switching, it is characterised in that including：

When clutch be in paralleling model when, judge operator demand's moment of torsion whether meet default first condition or The acceleration of motor is negative value, and whether the absolute value of the acceleration is more than preset first threshold value Or whether the rotating speed of the motor is less than default 3rd rotating speed；

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in series connection During pattern, can prevent power source premode from meeting operator demand's moment of torsion in the case of, carry For bigger driving torque, or series model can meet the effect of the power source in the case of demand torque Rate is higher, or series model can meet engine noise vibration in the case of demand torque and meet default the Three conditions；

When it is determined that the acceleration of the motor is negative value, and the acceleration absolute value more than default the The rotating speed of one threshold value or the motor is less than default 3rd rotating speed, if or clutch be in series connection mould During formula, power source can be made to provide the hair in hgher efficiency or described of bigger driving torque or the power source Motivation noise and vibration meet default third condition, and the clutch is switched into tandem working pattern.

The control method of 14. clutch operating mode switchings according to claim 13, it is characterised in that institute First condition is stated, including：

The driving torque or described that power source can be provided when operator demand's moment of torsion is more than paralleling model During the driving torque that power source can be provided when operator demand's moment of torsion is less than series model, it is determined that described Operator demand's moment of torsion meets the first condition.

The control method of 15. clutch operating mode switchings according to claim 13, it is characterised in that institute The 3rd rotating speed is stated for the engine idle rotational.

The control method of 16. clutch operating mode switchings according to claim 13, it is characterised in that institute If state judgement clutch in series model, whether the efficiency of the power source is higher, including：

When the rotating speed of the motor is less than four rotating speed, power source during series model is determined It is in hgher efficiency.

The control method of 17. clutch operating mode switchings according to claim 13, it is characterised in that institute Third condition is stated, including：When the clutch is in non-paralleling model, the efficiency of the power source Be in efficiency during paralleling model more than the clutch, and vehicle noise and vibration less than default threshold Value.

The control method of 18. clutch operating mode switchings according to claim 13, it is characterised in that institute State the efficiency that judges vehicle and whether noise and vibration situation meets default third condition, including：

When the rotating speed of the motor is more than five rotating speed, noise and the vibration of the vehicle are determined Situation meets the third condition.

A kind of 19. control methods of clutch operating mode switching, it is characterised in that including：

When clutch be in paralleling model when, judge operator demand's moment of torsion whether meet default first condition or The acceleration of motor is negative value, and whether the absolute value of the acceleration is more than preset first threshold value Or whether the rotating speed of the motor is less than the 3rd rotating speed；

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in series connection During pattern, can prevent power source premode from meeting operator demand's moment of torsion in the case of provide Bigger driving torque or series model can meet the efficiency of the power source in the case of demand torque more It is high；

When it is determined that clutch is in series model, power source can be made to provide bigger driving torque or described dynamic The acceleration of the motor in hgher efficiency or described in power source be negative value, and the acceleration absolute value When rotating speed more than the first threshold or the motor is less than three rotating speed, will it is described from Clutch switches to series model by paralleling model.

The control method of 20. clutch operating mode switchings according to claim 19, it is characterised in that institute First condition is stated, including：

The control method of 21. clutch operating mode switchings according to claim 19, it is characterised in that institute The 3rd rotating speed is stated for engine idle rotational.

The control method of 22. clutch operating mode switchings according to claim 19, it is characterised in that institute If state judgement clutch in series model, whether the efficiency of the power source is higher, including：

A kind of 23. control methods of clutch operating mode switching, it is characterised in that including：

When it is determined that the drive demand moment of torsion meets the first condition, judge that engine noise and vibration are It is no to meet default third condition；

When it is determined that the engine noise and vibration meet the third condition when, by the clutch by simultaneously Gang mould formula switches to series model.

The control method of 24. clutch operating mode switchings according to claim 23, it is characterised in that institute First condition is stated, including：

During the driving torque that power source can be provided when operator demand's moment of torsion is less than series model, really Fixed operator demand's moment of torsion meets the first condition.

The control method of 25. clutch operating mode switchings according to claim 23, it is characterised in that institute Third condition is stated, including：The noise of vehicle and vibration are less than predetermined threshold value.

The control method of 26. clutch operating mode switchings according to claim 23, it is characterised in that institute State and judge whether the noise and vibration situation of vehicle meets default third condition, including：

A kind of 27. control methods of clutch operating mode switching, it is characterised in that including：

When the clutch is in paralleling model, the acceleration for judging motor is negative value, and described is added It is default whether whether the absolute value of speed be less than more than the rotating speed of preset first threshold value or the motor 3rd rotating speed；

When it is determined that the acceleration of the motor is negative value, and the acceleration absolute value more than described the When the rotating speed of one threshold value or the motor is less than three rotating speed, by the clutch by parallel connection Pattern switching is to series model.

The control method of 28. clutch operating mode switchings according to claim 27, it is characterised in that institute The 3rd rotating speed is stated for engine idle rotational.

A kind of 29. control methods of clutch operating mode switching, it is characterised in that including：

When the clutch is in paralleling model, judge whether operator demand's moment of torsion meets default first Part；

When it is determined that the drive demand moment of torsion meets the first condition, if judging, clutch is in series connection mould During formula, if power source can be made to provide bigger driving torque；

When it is determined that clutch is in series model, when power source can be made to provide bigger driving torque, by institute State clutch and series model is switched to by paralleling model.

The control method of 30. clutch operating mode switchings according to claim 29, it is characterised in that institute First condition is stated, including：

During the driving torque that power source can be provided when operator demand's moment of torsion is more than paralleling model, really Fixed operator demand's moment of torsion meets the first condition.

A kind of 31. control methods of clutch operating mode switching, it is characterised in that including：

When it is determined that operator demand's moment of torsion meets the first condition, if judging, clutch is in series connection During pattern, whether the efficiency of power source is higher；

When it is determined that clutch be in series model when, the power source it is in hgher efficiency when, by the clutch Series model is switched to by paralleling model.

The control method of 32. clutch operating mode switchings according to claim 31, it is characterised in that institute First condition is stated, including：

The control method of 33. clutch operating mode switchings according to claim 31, it is characterised in that institute If state judgement clutch in series model, whether the efficiency of the power source is higher, including：

A kind of 34. control methods of clutch operating mode switching, it is characterised in that including：

When it is determined that operator demand's moment of torsion meets the first condition, engine noise and vibration are judged Whether satisfaction presets third condition；

The control method of 35. clutch operating mode switchings according to claim 34, it is characterised in that institute First condition is stated, including：

The control method of 36. clutch operating mode switchings according to claim 34, it is characterised in that institute Third condition is stated, including：The noise of vehicle and vibration are less than predetermined threshold value.

The control method of 37. clutch operating mode switchings according to claim 34, it is characterised in that institute State the efficiency that judges vehicle and whether noise and vibration situation meets default third condition, including：

A kind of 38. HCU, it is characterised in that including：

First judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and driving Whether the operating mode of motor meets default first condition；

Second judging unit, is suitable to when the operating mode of the engine and motor meets the first condition, Judge power source premode can not meet operator demand's moment of torsion in the case of, if the clutch During in paralleling model, if the power source can be made to provide bigger driving torque, or judge described Whether the efficiency of power source and the noise and vibration situation of vehicle meet default second condition；

First switch unit, is suitable to be in paralleling model when the determination clutch, can make the power source The efficiency and noise and vibration situation for providing bigger driving torque or the power source meet the second condition When, switch to paralleling model to work on the clutch.

39. HCU according to claim 38, it is characterised in that the default first condition, including： Engine is in the idling speed of the rotating speed more than engine of starting state and motor.

40. HCU according to claim 38, it is characterised in that second judging unit, including： First judgment sub-unit, power source energy when being suitable to whether judge operator demand's moment of torsion more than series model Enough the first peak torques for providing；

Second judgment sub-unit, is suitable to determine that operator demand's moment of torsion is big when first judgment sub-unit During the first peak torque that power source can be provided when series model, power source during paralleling model is judged Whether the second peak torque that can be provided is more than first peak torque, and when determination described second When peak torque is more than first peak torque, determine that clutch is in paralleling model, can make Power source provides bigger driving torque.

41. HCU according to claim 38, it is characterised in that the second condition, including：Institute When stating clutch in paralleling model, the efficiency of the power source is in more than the clutch works as front mould Efficiency during formula, and the noise and vibration parameter of the vehicle is less than predetermined threshold value.

42. HCU according to claim 41, it is characterised in that second judging unit, are suitable to sentence Whether the rotating speed of the disconnected motor is more than default first rotating speed and less than default second rotating speed；

A kind of 43. HCU, it is characterised in that including：

Whether 3rd judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Satisfaction presets the acceleration of first condition or motor for negative value, and the absolute value of the acceleration are Whether the no rotating speed more than preset first threshold value or the motor is less than default 3rd rotating speed；

4th judging unit, is suitable to determine that operator demand's moment of torsion meets institute when the 3rd judging unit When stating first condition, if judge that clutch is in series model, if power source can be made to provide more Whether the efficiency of big driving torque or the power source higher or whether engine noise and vibration meet pre- If third condition；

Second switch unit, is suitable to when the 4th judging unit determines that clutch is in series model, energy Power source is enough set to provide the in hgher efficiency or determination engine of bigger driving torque or the power source Noise and vibration meet the rotating speed of the third condition or motor described in the 3rd judging unit When whether the rotating speed more than the 3rd rotating speed or the motor is less than default three rotating speed, by institute State clutch and series model is switched to by paralleling model.

44. HCU according to claim 43, it is characterised in that the first condition, including：

45. HCU according to claim 43, it is characterised in that the 3rd rotating speed is the engine Idling speed.

46. HCU according to claim 43, it is characterised in that the 4th judging unit, are suitable to sentence Whether the rotating speed of the disconnected motor is less than default 4th rotating speed；

47. HCU according to claim 43, it is characterised in that the third condition, including：Institute When stating clutch in non-paralleling model, the efficiency of the power source is in parallel connection more than the clutch Efficiency during pattern, and vehicle noise and vibration be less than predetermined threshold value.

48. HCU according to claim 43, it is characterised in that the 4th judging unit, are suitable to sentence Whether the rotating speed of the disconnected motor is more than default 5th rotating speed, when the rotating speed of the motor is big When five rotating speed, determine that the noise and Vibration Condition of vehicle meet the third condition.

A kind of 49. HCU, it is characterised in that including：

5th judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and driving Whether the operating mode of motor meets default first condition；

6th judging unit, is suitable to when the operating mode of the engine and motor meets the first condition, Judge power source premode can not meet operator demand's moment of torsion in the case of, if the clutch During in paralleling model, if power source can be made to provide bigger driving torque；

3rd switch unit, is suitable to, when clutch is determined in paralleling model, to provide power source bigger During driving torque, paralleling model is switched to work on clutch.

A kind of 50. HCU, it is characterised in that including：

7th judging unit, is suitable to, when clutch is in non-parallel operation pattern, judge engine and driving Whether the operating mode of motor meets default first condition；

8th judging unit, is suitable to when the operating mode of the engine and motor meets the first condition, Judge whether the efficiency and noise and vibration situation of power source meet default second condition；

4th switch unit, is suitable to meet described the when the efficiency and noise and vibration situation that determine the power source During two conditions, paralleling model is switched to work on clutch.

A kind of 51. HCU, it is characterised in that including：

Whether 9th judging unit, is suitable to, when clutch is in paralleling model, judge operator demand's moment of torsion Satisfaction presets the acceleration of first condition or motor for negative value, and the absolute value of the acceleration are Whether the no rotating speed more than preset first threshold value or the motor is less than the 3rd rotating speed；

Tenth judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, sentence If disconnected clutch is in series model, if power source can be made to provide bigger driving torque or described Whether the efficiency of power source is higher；

5th switch unit, is suitable to when it is determined that clutch is in series model, power source can be made to provide more The acceleration of the motor in hgher efficiency or described of big driving torque or the power source is negative value, and The absolute value of the acceleration more than the first threshold or the motor rotating speed less than described the During three rotating speeds, the clutch is switched into series model by paralleling model.

A kind of 52. HCU, it is characterised in that including：

11st judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is It is no to meet default first condition；

12nd judging unit, is suitable to when it is determined that operator demand's moment of torsion meets the first condition, Judge whether engine noise and vibration meet default third condition；

6th switch unit, is suitable to when it is determined that the engine noise and vibration meet the third condition, The clutch is switched into series model by paralleling model.

A kind of 53. HCU, it is characterised in that including：

13rd judging unit, is suitable to, when clutch is in paralleling model, judge the acceleration of motor Be negative value, and the acceleration absolute value whether more than preset first threshold value or the motor Whether rotating speed is less than default 3rd rotating speed；

7th switch unit, is suitable to when the acceleration for determining the motor is negative value, and the acceleration Absolute value when being less than three rotating speed more than the rotating speed of the first threshold or the motor, The clutch is switched into series model by paralleling model.

A kind of 54. HCU, it is characterised in that including：

14th judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is It is no to meet default first condition；

8th switch unit, is suitable to when it is determined that clutch is in series model, power source can be made to provide more During big driving torque, the clutch is switched into series model by paralleling model.

A kind of 55. HCU, it is characterised in that including：

16th judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is It is no to meet default first condition；

9th switch unit, is suitable to when it is determined that clutch is in series model, and the efficiency of the power source is more Gao Shi, series model is switched to by the clutch by paralleling model.

A kind of 56. HCU, it is characterised in that including：

18th judging unit, is suitable to, when clutch is in paralleling model, judge that operator demand's moment of torsion is It is no to meet default first condition；

Tenth switch unit, be suitable to when it is determined that the engine noise and vibration meet the third condition when, The clutch is switched into series model by paralleling model.