CN209719275U - The dynamical system and electric car of stroke-increasing electric automobile - Google Patents

Abstract

The utility model provides the dynamical system and electric car of a kind of stroke-increasing electric automobile.System includes first motor, the second motor, power drive mechanism, internal combustion engine, controller and on-vehicle battery group；Power drive mechanism is provided with the first, second input terminal and power output end；First motor is connect with first input end realizes the input of First Speed rank power；Second motor is connect with the second input terminal realizes the input of second speed rank power；On-vehicle battery group is connect with first motor and the second motor respectively；Controller is connect with first motor, the second motor and internal combustion engine respectively, control first motor, the second motor and each self-starting of internal combustion engine or stopping；Internal combustion engine is connect with first motor and the second motor respectively, can drive first motor and/or the second electric power generation under the control of the controller.The system of the utility model can reduce the whole manufacturing cost of vehicle, reduce the overall exhaust emissions of vehicle, optimize the cost, weight and space of electric car.

Description

The dynamical system and electric car of stroke-increasing electric automobile

Technical field

The utility model relates to electric vehicle engineering field more particularly to a kind of dynamical system of stroke-increasing electric automobile with Electric car.

Background technique

In recent years, the mode that people obtain the energy becomes diversification, and no longer transition relies on fossil energy.Especially various countries are big Push dynamic renewable energy industry development, by it is extensive, centralized, expeditiously utilize renewable energy power generation, then pass through Perfect power grid is transported to each electric terminal, just becomes a kind of clean, efficient, sustainable energy utilization patterns.It compares By internal combustion engine dispersion, inefficiently burning fossil energy obtains energy driving automobile, and the mode that electricity consumption directly drives automobile is overall Efficiency of energy utilization is higher.Therefore electric car will necessarily be increasingly becoming the main product of automobile market.

But electric car will be solved from universal there are also many problems, and most significantly battery problems, are in particular in battery Cost is high, the service life is short, charging time long three aspects, leads to that electric car manufacturing cost is high, maintenance cost is high, continuation of the journey is short, fills The actual application problems such as electric inconvenience.These problems are battery industry is immature, the incomplete early stage president of charging network Phase persistently exists, and Zao Che enterprise needs better solution to meet user to the practicability of electric car and use Che Chengben Demand.One of solution is exactly stroke-increasing electric automobile, by increasing an internal combustion engine and one on electric car A generator, effect is power generation when vehicle-loaded battery electricity quantity deficiency, on the one hand vehicle can be driven to continue to travel, another Aspect can supplement electricity for on-vehicle battery group.That it goes without doing is very big for on-vehicle battery group in this way, and longer continuation of the journey also may be implemented Distance.User's routine use also can be facilitated more, go on a journey pure electricity consumption of short distance can meet, and long-distance trip can be by the way Gas station feeds energy.

Compared to pure electric automobile, stroke-increasing electric automobile will increase a set of electricity generation system comprising internal combustion engine and generator, And generated output cannot be too small, is not otherwise able to satisfy the power demand of normal vehicle operation.Although reducing in this way to vehicle-mounted The specification requirement of battery pack reduces the deployment cost of battery pack, but also increases the deployment cost of electricity generation system, vehicle simultaneously Manufacturing cost there is no significantly reduce, increase instead vehicle manufacture complexity.Therefore, it is urgent to provide a kind of new extended-ranges Power system of electric automobile, effectively to optimize the manufacturing cost of electric car.

Utility model content

In order to make up for the deficiencies of the prior art, the utility model provides the dynamical system and electricity of a kind of stroke-increasing electric automobile Electrical automobile, effectively to optimize the manufacturing cost of electric car.

The utility model provides a kind of dynamical system of stroke-increasing electric automobile, and the system comprises first motors, second Motor, power drive mechanism, internal combustion engine, controller and on-vehicle battery group；The power drive mechanism be provided with first input end, Second input terminal and power output end；The first motor is connect with the first input end, realizes First Speed rank power Input；Second motor is connect with second input terminal, realizes the input of second speed rank power；The on-vehicle battery group It is connect respectively with the first motor and second motor；

The controller is connect with the first motor, second motor and the internal combustion engine respectively, controls described the One motor, second motor and the respective starting of the internal combustion engine or stopping；The internal combustion engine is electric with described first respectively Machine is connected with second motor, and can drive the first motor and/or described second under the control of the controller Electric power generation.

Still optionally further, in system as described above, the operating mode packet of the first motor and second motor Include drive mode, power generation mode or stop mode；The first motor and second motor can be in identical work simultaneously Mode or different working modes.

Still optionally further, in system as described above, the controller is used in the first motor and described second There are when power generation mode in motor, the internal combustion engine start is controlled, to drive the corresponding first motor of the power generation mode And/or second electric power generation.

Still optionally further, in system as described above, the power drive mechanism includes sun gear, at least three planets Wheel, gear ring and planet carrier；Wherein, the gear ring is arranged outside the sun gear, and at least three planetary gear is uniformly distributed Between the sun gear and the gear ring, engaged respectively with the sun gear and the gear ring；The planet carrier and it is described extremely Few three planetary gears connection；The input shaft of the input shaft of the sun gear and the planet carrier is respectively as the first input end With second input terminal, the gear ring is as the power output end.

Still optionally further, in system as described above, further includes:

First clutch between the first motor and the first input end of the power drive mechanism is set, The input shaft of the output axis connection of one end of the first clutch and the first motor, the other end and the sun gear connects It connects；

Second clutch between second motor and second input terminal of the power drive mechanism is set, The input shaft of the output axis connection of one end of the second clutch and second motor, the other end and the planet carrier connects It connects；

The first clutch and the second clutch are connect with the controller respectively, and the controller is for controlling The separation and closure of the first clutch and the second clutch.

Still optionally further, in system as described above, further includes: for control the sun gear the first lock device and For controlling the second lock device of the planet carrier, first lock device and second lock device respectively with the controller Connection；

When the controller controls first lock device engagement, so that the sun gear is fixed；The controller control When first lock device separates, the sun gear is allowed to rotate；

When the controller controls second lock device engagement, so that the planet carrier is fixed；The controller control When second lock device separates, the planet carrier is allowed to rotate.

Still optionally further, in system as described above, further includes:

Be arranged in the first gear group between the internal combustion engine and the first motor and setting the internal combustion engine with Second gear group between second motor；The first gear group includes the first driving wheel and the first driven wheel, and described the Two gear sets include the second driving wheel and the second driven wheel；

The input with the input shaft of first driving wheel and second driving wheel respectively of the output shaft of the internal combustion engine Axis connection；The output shaft of first driven wheel and the input axis connection of the first motor；The output of second driven wheel The input axis connection of axis and second motor.

Still optionally further, output shaft and the first motor in system as described above, in first driven wheel Input shaft between be additionally provided with third clutch, second driven wheel output shaft and second motor input shaft Between be additionally provided with the 4th clutch；

The third clutch and the 4th clutch are connect with the controller respectively, and the controller is for controlling The separation and closure of the third clutch and the 4th clutch.

Still optionally further, in system as described above, if the first motor and/or second motor are in driving When mode, the on-vehicle battery group provides electric energy for the first motor and/or second motor；If the first motor And/or second motor is when being in power generation mode, the controller is also used to control by the first motor and/or described the The electricity that two motors issue partly or entirely charges to the on-vehicle battery group.

The utility model also provides a kind of stroke-increasing electric automobile, and the stroke-increasing electric automobile is using as described above dynamic Force system.

The dynamical system and electric car of the stroke-increasing electric automobile of the utility model, by using above-mentioned technical proposal, Using bi-motor and power drive mechanism, the power drive request of friction speed rank is realized respectively, is reduced to single electricity The demanded power output of machine also reduces the power output requirement to on-vehicle battery group, to reduce the whole manufacture of vehicle Cost.And in the utility model, the motor for being not involved in driving work can be generated electricity by internal-combustion engine drives, participate in driving for another The motor of work provides electricity, or the charging of on-vehicle battery group, to improve the overall cruising ability of vehicle.Furthermore In the utility model, internal combustion engine does not participate in power output work directly, and internal combustion engine can be allowed in optimum efficiency section, reduced Loss of the internal combustion engine in inefficient area, to reduce the overall exhaust emissions amount of vehicle；Be conducive to simultaneously to internal combustion engine Cost, weight and volume are further optimized, so as to optimize the cost, weight and space of dynamical system, in turn The cost, weight and space of electric car can be optimized.

Detailed description of the invention

Disclosure illustrative embodiments are described in more detail in conjunction with the accompanying drawings, the disclosure above-mentioned and its Its purpose, feature and advantage will be apparent, wherein in disclosure illustrative embodiments, identical reference label Typically represent same parts.

Fig. 1 is that the dynamical system of the stroke-increasing electric automobile of the utility model unifies the structural schematic diagram of embodiment.

Fig. 2 is the pattern switching schematic diagram in the driving cycle of automobile provided by the utility model.

Fig. 3 is the structural schematic diagram of another embodiment of dynamical system of the stroke-increasing electric automobile of the utility model.

Fig. 4 is a kind of structural schematic diagram of power drive mechanism A provided by the utility model.

Fig. 5 is the control schematic diagram of the dynamical system of the stroke-increasing electric automobile of the utility model.

Fig. 6 is the flow chart of the control method embodiment of the dynamical system of the stroke-increasing electric automobile of the utility model.

Specific embodiment

The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure without the embodiment party that should be illustrated here Formula is limited.On the contrary, these embodiments are provided so that this disclosure will be more thorough and complete, and can be by the disclosure Range is completely communicated to those skilled in the art.

In order to overcome the dynamical system of existing stroke-increasing electric automobile to need to configure the electricity generation system and drive of high gauge Dynamic system, and lead to the higher technical problem of the manufacturing cost of electric car.Based on this, the utility model provides a kind of novel The dynamical system of stroke-increasing electric automobile only needs to configure the not high pure power drive system of a set of specification requirement in the system, with And a set of electricity generation system based on internal combustion engine, save the running part of traditional combustion engine drive system, therefore vehicle cost can be with It is greatly reduced.And in dynamical system provided by the utility model, internal combustion engine is only responsible for sending out to first motor and/or the second motor Electricity can allow internal combustion engine only to operate in most efficient operation interval, be conducive to do into one the cost, weight and volume of internal combustion engine The optimization of step, so can cost to entire stroke-increasing electric automobile and space etc. effectively optimized.

Fig. 1 is that the dynamical system of the stroke-increasing electric automobile of the utility model unifies the structural schematic diagram of embodiment.Such as Fig. 1 institute Show, the present embodiment, the dynamical system of stroke-increasing electric automobile include first motor 1, the second motor 2, power drive mechanism A, Internal combustion engine 17, controller 18 and on-vehicle battery group W；Power drive mechanism A is provided with first input end M, the second input terminal N and moves Power output end P；First motor 1 is connect with first input end M, realizes the power input of First Speed rank；Second motor 2 and The power input of second speed rank is realized in two input terminal N connections.The second speed of First Speed rank sum in the present embodiment Rank can be respectively low speed rank and high speed rank, and the velocity amplitude of the separation of low speed rank and high speed rank can be according to reality Border experience is chosen.

Power drive mechanism A in the present embodiment includes that there are two input terminals: first input end M and the second input terminal N.If When car speed meets First Speed rank, by first motor 1 from the first input end M input power of power drive mechanism A, by Power output end P output power provides energy to automobile.And if car speed is when meeting second speed rank, by the second motor 2 From the second input terminal N input power of power drive mechanism A, also by power output end P output power, energy is provided to automobile. For the power input of friction speed rank, in power drive mechanism A, different power transmission processing has specifically been carried out, with Meet the power transmission demand of friction speed rank.When the power drive mechanism A specific implementation of the present embodiment, it can use more A mechanical component mutually links and is composed；It can also be realized according to its realization principle using the electronic equipment of intelligence, and The code and its chip for realizing its principle can be embedded in intelligent electronic device, no longer citing repeats one by one herein.

Controller 18 in the present embodiment is connect with first motor 1 and the second motor 2 and internal combustion engine 17 respectively, can be controlled First motor 1 processed and the second motor 2 and the respective starting of internal combustion engine 17 or stopping.

For example, the controller 18 of the present embodiment can be an intelligent control device, it can be in first motor 1, the second motor 2 Or internal combustion engine 17 controls corresponding equipment starting when need work；When corresponding equipment does not need work, control It stops, and control mode is very intelligent, easy.

Internal combustion engine 17 is connect with first motor 1 and the second motor 2 respectively, and is needed in first motor 1 and/or the second motor 2 When generating electricity, first motor 1 and/or the power generation of the second motor 2 can be driven under control of the controller 18.That is, this reality In the dynamical system for applying the stroke-increasing electric automobile of example, under all operating conditions, internal combustion engine 17 does not participate in power output work directly Make, and is merely responsible for driving first motor 1 and/or the power generation of the second motor 2.

On-vehicle battery group W in the dynamical system of the stroke-increasing electric automobile of the present embodiment respectively with first motor 1 and The connection of two motors 2.

It can be seen from the above, the dynamical system of the stroke-increasing electric automobile of the present embodiment is a double-motor power system, the The status of one motor 1 and the second motor 2 in dynamical system is suitable, and power can be close or equal.And first motor 1 and Two motors 2 can be inputted respectively as the power of First Speed rank and second speed rank.No matter the input of which kind of power, from The power output end P output power of power drive mechanism A, for the traveling of automobile.

In addition, the internal combustion engine 17 in the dynamical system of the present embodiment does not participate in power output directly, but can be in power In system work process, under control of the controller 18, drives in first motor 1 and the second motor 2 and be not involved in power output Electric power generation provides electricity for the motor of another work, and can also under control of the controller 18, by the extra electricity that generates electricity Amount is that on-vehicle battery group charges.

Optionally, in the dynamical system of the stroke-increasing electric automobile of the present embodiment, some controls are can be set in controller 18 Strategy, to realize that the dynamical system to above structure controls.For example, the function that controller 18 is realized using a control strategy It can be with are as follows: for detecting and obtaining the performance parameter of automobile；Performance parameter based on automobile determines first motor and the second electricity The respective operating mode of machine；And according to first motor and the respective operating mode of the second motor, first motor and the second electricity are controlled The respective starting of machine or stopping work so that first motor and the second motor enter corresponding operating mode.It can The performance parameter of selection of land, the automobile of the present embodiment can be the speed of automobile and the electricity of on-vehicle battery group.In practical application, Other performance parameters can also be selected to realize according to actual needs, it is not limited here.

Wherein, in the present embodiment, the operating mode of first motor 1 and the second motor 2 may include drive mode, power generation mould Formula or stop mode.Or in the present embodiment, first motor 1 and the second motor 2 can simultaneously in identical operating mode or not Same operating mode.Such as first motor 1 and the second motor 2 can be in drive mode, power generation mode or stop mode simultaneously； Or one of them is in drive mode, another is in power generation mode.

Optionally, in the dynamical system of the stroke-increasing electric automobile of the present embodiment, automobile is directly provided by on-vehicle battery group W The electric energy of power.If first motor 1 and/or the second motor 2 are in drive mode, on-vehicle battery group W can be the first electricity Machine 1 and/or the second motor 2 provide electric energy；If first motor 1 and/or the second motor 2 are in power generation mode, controller 18 electricity for being also used to issue first motor 1 and/or the second motor 2 partly or entirely charge to on-vehicle battery group W, with Storage energy.

Further optionally, the internal combustion engine 17 in the present embodiment is not due to participating in power output work directly, so internal combustion engine 17 when only at least one is in power generation mode in first motor 1 and the second motor 2, just can by controller 18 control and Starting.Accordingly, it is also required to configure corresponding control strategy in controller 18, realizes corresponding function.Specifically, controller The control strategy configured in 18 can be with are as follows: there are when power generation mode in first motor 1 and the second motor 2, controls internal combustion engine 17 Start and drive the corresponding first motor 1 of power generation mode and/or the second motor 2 to generate electricity.Accordingly, the strategy, controller are based on 18 functions of being realized are as follows: for there are when power generation mode, control internal combustion engine 17 to start in first motor 1 and the second motor 2, To drive the corresponding first motor 1 of power generation mode and/or the second motor 2 to generate electricity.

Below by taking the control strategy of specific modes several in running car as an example, the electronic vapour of extended-range of the present embodiment is described The realization principle of the dynamical system of vehicle.

The control strategy of mode one: judge speed whether less than the electricity of the first pre-set velocity threshold value and on-vehicle battery group be It is no to be not less than default power threshold；If so, determining that the operating mode of first motor 1 is drive mode, the second motor 2 is to stop mould Formula；Controller 18 controls first motor 1 and starts according to the drive mode of first motor 1 and the stop mode of the second motor 2, control The stopping of the second motor 2 is made, so that first motor 1 and the second motor 2 are under corresponding operating mode.

When specific implementation, controller 18 is by detecting and determining speed less than the first pre-set velocity threshold value and on-vehicle battery group Electricity when being not less than default power threshold, determination needs the operating mode by first motor 1 to be adjusted to drive mode at this time, will The operating mode of second motor 2 is adjusted to stop mode；Start next, controller 18 controls first motor 1, at this time vehicle mounted electric Pond group W is that first motor 1 provides electric energy, and first motor 1 is from the first input end M input power of power drive mechanism A, and at this time The power output end P output power of power drive mechanism A is to automobile, for the traveling of automobile.In the control strategy, due to first Motor 1 and the second motor 2 do not have power generation mode, and internal combustion engine 17, which can star, at this time to stop.Certainly starting is also to wait The stage of work, and it is not involved in power generation operation.From the perspective of energy source optimization, internal combustion engine 17 preferably stops.

The control strategy of mode two: if detect speed less than the first pre-set velocity threshold value, but the electricity of on-vehicle battery group When amount is lower than default power threshold, determine that the operating mode of first motor 1 is drive mode, the second motor 2 is power generation mode；Root According to the drive mode of first motor 1 and the power generation mode of the second motor 2, first motor 1, the second motor 2 and internal combustion engine 17 are controlled Start, and control the second motor 2 and generate electricity under the drive of internal combustion engine 17, and the electricity of sending is supplied to first motor 1, makes It obtains first motor 1 and the second motor 2 is under corresponding operating mode.

When specific implementation, controller 18 by detect and determine speed less than the first pre-set velocity threshold value, but vehicle mounted electric When the electricity of pond group is lower than default power threshold, determines and need to be adjusted to drive by the operating mode needs of first motor 1 at this time The operating mode of second motor 2 is adjusted to power generation mode by mode.Next, controller 18 controls first motor 1 and the second electricity Machine 2, simultaneously as the second motor 2 is needed in power generation mode, so internal combustion engine 17 is also required to be started by controller 18 simultaneously. It generates electricity under the drive of internal combustion engine 17 in this way, controller 18 can control the second motor 2, and the electricity of sending is supplied to first Motor 1.And after first motor 1 gets electric energy from the second motor 2, it is dynamic from the first input end M of power drive mechanism A input Power, and the power output end P output power of power drive mechanism A is to automobile at this time, for the traveling of automobile.

Still optionally further, if the electricity that the second motor 2 issues is supplied to after first motor 1 when still having extra, this time control Following control strategy and realization can also be configured in device 18 processed: detecting can control at this time by extra electricity to vehicle mounted electric Pond group charging W.

The control strategy of mode three: judge whether speed is not less than the first pre-set velocity threshold value and no more than the second default speed Threshold value is spent, and whether the electricity of on-vehicle battery group is not less than default power threshold；If so, determining that the operating mode of the second motor is Drive mode, first motor are stop mode；Controller 18, which controls first motor 1, to be stopped, control the second motor 2 starting, so that First motor 1 and the second motor 2 are under corresponding operating mode.The second pre-set velocity threshold value in the present embodiment is greater than first Pre-set velocity threshold value.

When specific implementation, controller 18 is by detecting and determining speed not less than the first pre-set velocity threshold value and no more than the Two pre-set velocity threshold values, and when the electricity of on-vehicle battery group is not less than default power threshold, determine the operating mode of the second motor 2 It should be adjusted to drive mode, the operating mode of first motor 1 should be adjusted to stop mode；Specifically, due to first motor 1 and There is no power generation mode in two motors 2, does not need control internal combustion engine 17 and start.Controller 18 only controls the stopping of first motor 1 at this time, Control the starting of the second motor 2.In addition, belonging to second speed rank since speed is not less than the first pre-set velocity threshold value.Vehicle at this time Carrying battery pack W is that the second motor 2 provides electric energy, the second motor 2 from the second input terminal N input power of power drive mechanism A, and The power output end P output power of power drive mechanism A is to automobile at this time, for the traveling of automobile.

In the present embodiment, speed can be divided into third gear: speed may be considered low speed lower than the first pre-set velocity threshold value Traveling, can be adapted for the vehicle starting stage.Speed is not less than the first pre-set velocity threshold value and is not more than the second pre-set velocity threshold Value, which may be considered, drives at moderate speed, and can be adapted for driving at moderate speed in urban district.Speed is not less than the second pre-set velocity threshold value, It may be considered and run at high speed, can be adapted for running at high speed on a highway.Specifically, in the present embodiment, Ke Yiqu First pre-set velocity threshold value is the separation of First Speed rank and second speed rank, therefore the control strategy of above-mentioned mode one It can be adapted for the other power input of First Speed rank i.e. slow speed turbine stage with the control strategy of mode two.Vehicle in this control strategy Speed is not less than the second pre-set velocity threshold not less than the first pre-set velocity threshold value and no more than the second pre-set velocity threshold value and speed Value, belongs to second speed rank,

The control strategy of mode four: judge whether speed is not less than the first pre-set velocity threshold value and no more than the second default speed Threshold value is spent, and the electricity of on-vehicle battery group is lower than default power threshold；If so, determining that the operating mode of the second motor 2 is driving Mode, first motor 1 are power generation mode；According to the drive mode of the power generation mode of first motor 1 and the second motor 2, control the One motor 1, the second motor 2 and internal combustion engine 17 start, so that first motor 1 and the second motor 2 are under corresponding operating mode.

When specific implementation, controller 18 is by detecting and determining speed not less than the first pre-set velocity threshold value and no more than the Two pre-set velocity threshold values, and when the electricity of on-vehicle battery group is lower than default power threshold, determine that the operating mode of first motor 1 is answered It is adjusted to power generation mode, the operating mode of the second motor 2 should be adjusted to drive mode.Since the operating mode of first motor 1 is Power generation mode, controller 18 is while controlling first motor 1 and the second motor 2 starts at this time, it is also necessary to start internal combustion engine 17. It generates electricity under the drive of internal combustion engine 17 in this way, controller 18 can control first motor 1, and the electricity of sending is supplied to second Motor 2.And after the second motor 2 gets electric energy from first motor 1, it is dynamic from the second input terminal N of power drive mechanism A input Power, and the power output end P output power of power drive mechanism A is to automobile at this time, for the traveling of automobile.

The control strategy of mode five: judge whether speed is not less than the second pre-set velocity threshold value, and the electricity of on-vehicle battery group Whether amount is not less than default power threshold；If so, the operating mode for determining first motor 1 and the second motor 2 is drive mode；Root According to the drive mode of first motor 1 and the second motor 2, controls first motor 1 and the second motor 2 starts, so that first motor 1 It is under corresponding operating mode with the second motor 2.

When specific implementation, controller 18 is by detecting and determining that speed is not less than the second pre-set velocity threshold value, and vehicle mounted electric When the electricity of pond group is not less than default power threshold, determine that the operating mode of first motor 1 and the second motor 2 should be adjusted to drive Mode.Since the operating mode of first motor 1 and the second motor 2 does not have power generation mode, internal combustion engine 17 is not involved in power generation at this time, can To stop also can star waiting work.Controller 18 only controls first motor 1 and the starting of the second motor 2 at this time, and at this time first Motor 1 and the second motor 2 all obtain electric energy from on-vehicle battery group W, and then first motor 1 is defeated from the first of power drive mechanism A Enter to hold M input power, the second motor 2 is from the second input terminal N input power of power drive mechanism A, together from power transmission machine The power output end P output power of structure A is to automobile, for the traveling of automobile, so that the available higher speed of automobile.

Still optionally further, corresponding in the control strategy in the control strategy of above-mentioned 1st kind of mode to the 5th kind of mode The case where running car.It while the car is driving, the case where vehicle braking can be encountered, at this time can also be in the 1st kind of control plan Slightly on the basis of the 5th kind of control strategy, supplementing strategy control as follows: whether detection brake pedal is operated and causes vehicle vapour Vehicle braking；If so, the operating mode of the motor in drive mode is adjusted to power generation mode；And control the electricity that issues to On-vehicle battery group W charging.

When specifically, due to braking, automobile does not need to drive, and controller 18 can will be in the motor of drive mode at this time Operating mode be adjusted to power generation mode, and control the electricity issued and give on-vehicle battery group W charging, can be used for braking energy Recycling, avoids energy waste, increases recycling for energy.

The control strategy of mode six: judge whether speed is 0, and whether the electricity of on-vehicle battery group is lower than default electricity threshold Value；If so, the operating mode for determining first motor 1 and the second motor 2 is power generation mode, according to first motor 1 and the second motor 2 Power generation mode, control first motor 1, the second motor 2 and internal combustion engine 17 start, so that first motor 1 and the second motor 2 Under corresponding operating mode.

It is that one kind is parked state that the speed of the present embodiment, which is 0, i.e., the corresponding state of mode six is charged state of parking.

When specific implementation, controller 18 determines 1 He of first motor by detecting and determining that automobile is in charged state of parking The operating mode of second motor 2 is that power generation mode accordingly needs to start internal combustion engine 17 at this time.First electricity of the starting of controller 18 Machine 1, the second motor 2 and internal combustion engine 17, and control first motor 1 and the second motor 2 generates electricity under the drive of internal combustion engine 17, and The electricity of sending is charged to on-vehicle battery group W, to store more electric energy for subsequent enforcement.

Above-mentioned six kinds of modes provided in this embodiment are several frequently seen mode during automobile is exercised, and in practical application, may be used also To divide different modes according to binding performance parameter, and according to the concrete condition of each mode, corresponding mould can be configured Control strategy under formula, no longer citing repeats one by one herein.

Fig. 2 is the pattern switching schematic diagram in the driving cycle of automobile provided by the utility model.As shown in Fig. 2, automobile In all operating conditions, not there is only six kinds of modes as above, can also there be the switching of two different modes, each mode is cut It changes, accordingly, there is also corresponding control strategies in controller 18.Below by taking several modes shown in Fig. 2 switching as an example, it is situated between The control strategy and its realization principle of several groups of pattern switchings that continue.

First group of pattern switching: the mutual switching of state of parking and six state of mode.

The state of mode six is charged state of parking, and only speed is 0 to state of parking, it is believed that vehicle when state of parking The electricity for carrying battery pack is not less than default power threshold, does not need to charge at this time.So first group of pattern switching it is also assumed that It is the mutual switching of the state of parking with charged state of parking.

The control strategy of switching of state of parking to six state of mode can be with are as follows: the performance parameter based on automobile judges vapour Whether vehicle from the state of parking is switched to charged state of parking, if so, determining that the operating mode of first motor 1 and the second motor 2 is equal It needs to be switched to power generation mode from stop mode；According to the operational mode change information of first motor 1 and the second motor 2, control First motor 1, the second motor 2 and internal combustion engine 17 start, so that first motor 1 and the second motor 2 are all under power generation mode.

When specific implementation, controller 18 determines that the state of automobile can refer to above-mentioned implementation based on the performance parameter of automobile The determination of associative mode corresponding states in example, details are not described herein.Then controller 18 determines automobile currently just from the state of parking It is switched to when parking charged state, can determine that first motor 1 and the second motor 2 are required to be switched to hair from stop mode at this time Power mode, controller 18 starts internal combustion engine 17 while starting first motor 1 and the second motor 2 at this time, and controls internal combustion engine 17 drive first motor 1 and the power generation of the second motor 2, and the electricity of sending is charged and gives on-vehicle battery group.

The control strategy of switching of six state of mode to the state of parking can be with are as follows: the performance parameter based on automobile judges vapour Whether vehicle from charged state of parking is switched to the state of parking, if so, determining that the operating mode of first motor 1 and the second motor 2 is equal It needs to be switched to stop mode from power generation mode；According to the operational mode change information of first motor 1 and the second motor 2, control Internal combustion engine 17 stops, and first motor 1 and the second motor 2 is driven also to stop, so that first motor 1 and the second motor 2 are all in stopping Only under mode.

Similarly, when specific implementation, controller 18 determines automobile currently just from charging of parking based on the performance parameter of automobile State is switched to when parking state, can determine that first motor 1 and the second motor 2 are required to be switched to from power generation mode and stop at this time Only mode.The stopping that internal combustion engine 17 can first be controlled at this time, since internal combustion engine 17 stops working, first motor 1 and second Motor 2, which is just also forced, stopped, and automobile is in state of parking at this time.

Second group of pattern switching: the mutual switching of state of parking and one state of mode.

This group of pattern switching may be considered the mutual switching of the state of parking and low-speed running state, in the two states all There is no the motors of power generation mode, switch relatively easy.State switching occurs from parking low rate start or low in automobile Speed is exercised under the scene of parking.

The control strategy of switching of state of parking to one state of mode can be with are as follows: the performance parameter based on automobile judges vapour Whether vehicle is switched to the state of mode one from the state of parking, if so, determining that first motor 1 needs to be switched to driving from stop mode Mode, 2 operating mode of the second motor are constant；According to the pattern change information of first motor 1, controls first motor 1 and start.

When specific implementation, if controller 18 detects that automobile is 0 from speed, speed is changed to less than the first default speed Threshold value is spent, and the state not charged, that is, the state of parking switch to the state of mode one, determination needs to adjust first motor 1 at this time It is switched to start-up mode from stop mode, and the second motor 2 is still constant for stop mode.Controller 18 starts first motor at this time 1, then according to the work status of mode one.

The control strategy of switching of one state of mode to the state of parking can be with are as follows: the performance parameter based on automobile judges vapour Whether the state of slave pattern one is switched to the state of parking to vehicle, if so, determining that first motor 1 needs to be switched to stopping from drive mode Mode, 2 operating mode of the second motor are constant；According to the operational mode change information of first motor 1, controls first motor 1 and stop .

Specifically, realization principle is with the principle of the switching of state of parking to one state of mode conversely, above-mentioned mistake can be referred to Journey.It should be noted that can first slow down and slowly stop again, to prevent from stopping suddenly when controller 18 controls the stopping of first motor 1 Only to the damage of motor.

Third group pattern switching: the mutual switching of one state of mode and mode two-state.

This group of pattern switching can also be referred to as low-speed running state and run at a low speed and the mutual switching of charged state, this There is one in two states there are the motor of power generation mode, when switching needs to control the starting or stopping of internal combustion engine 17.The group Pattern switching can occur in low speed driving process.

The control strategy of switching of one state of mode to mode two-state can be with are as follows: the performance parameter based on automobile, judgement Whether the state of slave pattern one is switched to the state of mode two to automobile, if so, determine that 1 operating mode of first motor is constant, second Motor 2 needs to be switched to power generation mode from stop mode；According to the operational mode change information of the second motor 2, the second electricity of control Machine 2 and internal combustion engine 17 start, so that the second motor 2 is in power generation mode.

When specific implementation, the mode for the detection that controller 18 switches mode state, with reference to the record of above-mentioned pattern switching, Details are not described herein.Controller 18 determines the second motor 2 needs when being switched to power generation mode from stop mode, and controller 18 can be with First start internal combustion engine 17, then starts the second motor 2, and make the revolving speed of the second motor 2 synchronous with the revolving speed of internal combustion engine 17, make It obtains internal combustion engine 17 and drives the power generation of the second motor 2, then according to the work status of mode two.

The control strategy of switching of mode two-state to one state of mode can be with are as follows: the performance parameter based on automobile, judgement Whether the state of slave pattern two is switched to the state of mode one to automobile, if so, determine that 1 operating mode of first motor is constant, second Motor 2 needs to be switched to stop mode from power generation mode；According to the operational mode change information of the second motor 2, the second electricity of control Machine 2 stops, so that the second motor 2 is in stop mode.

Similarly, realization principle is with the principle of the switching of mode one to mode two-state conversely, the above process can be referred to.It needs It is noted that can first slow down and slowly stop again when controller 18 controls the stopping of the second motor 2, to prevent stopping pair suddenly The damage of motor.

4th group of pattern switching: the mutual switching of one state of mode and mode three condition.

This group of pattern switching can also be referred to as the mutual switching of low-speed running state with state of driving at moderate speed, the two shapes The motor of power generation mode is not present in state, when switching does not consider the starting or stopping of internal combustion engine 17.But it needs to switch different Motor drive.This group of pattern switching can occur the low speed in urban district and exercise under the scene exercised with middling speed.

One state of mode to mode three condition switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern one is switched to the state of mode three, if so, determining that first motor 1 needs to switch to stopping from drive mode Mode, the second motor 2 need to be switched to drive mode from stop mode；According to the operating mode of first motor 1 and the second motor 2 Change information, control first motor 1 stops, the second motor 2 starts, so that each motor is under corresponding operating mode.

When specific implementation, controller 18 records the detection that mode state switches with above-described embodiment.Controller 18 determines After the operational mode change information of two motors, in order to steadily excessively, first start the second motor 2, then control first motor 1 again Slow down and stop, to transfer to the second motor 2 to be responsible for all power output work, dynamical system enters the state of mode three Under.

Mode three condition to one state of mode switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern three is switched to the state of mode one, if so, determining that first motor 1 needs to switch to driving from stop mode Mode, the second motor 2 need to be switched to stop mode from drive mode；According to the operating mode of first motor 1 and the second motor 2 Change information, the starting of control first motor 1, the second motor 2 stop, so that each motor is under corresponding operating mode.

Similarly, realization principle is with the principle of the switching of mode three to one state of mode conversely, specifically can first control first Motor 1 starts, then controls the deceleration of the second motor 2, and stop, to transfer to first motor 1 negative all power output work Duty, dynamical system enter in the state of mode one.

5th group of pattern switching: the mutual switching of one state of mode and five state of mode.

This group of pattern switching can also be referred to as the mutual switching of low-speed running state and high-speed travel state, the two shapes The motor of power generation mode is not present in state, when switching does not consider the starting or stopping of internal combustion engine 17.This group of pattern switching can be with Occur under the enforcement scene in Entry to motorway section and high speed outlet section.

One state of mode to five state of mode switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern one is switched to the state of mode five, if so, determine that the operating mode of first motor 1 is constant, the second motor 2 It needs to be switched to drive mode from stop mode；According to the operational mode change information of the second motor 2, controls the second motor 2 and open It is dynamic, so that each motor is under corresponding operating mode.

When specific implementation, controller 18 records the detection that mode state switches with above-described embodiment.Controller 18 determines After the operational mode change information of second motor 2, start the second motor 2, thus by all power output work by the first electricity Machine 1 and the second motor 2 are collectively responsible for, and dynamical system works in the state of entering mode five at this time.

Five state of mode to one state of mode switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern five is switched to the state of mode one, if so, determine that the operating mode of first motor 1 is constant, the second motor 2 It needs to be switched to stop mode from drive mode；According to the operational mode change information of the second motor 2, controls the second motor 2 and stop Only.

Similarly, for realization principle with the principle of the switching of mode one to mode state five conversely, specifically, controller 18 can be with The deceleration of the second motor 2 is first controlled, and is stopped, thus transfer to first motor 1 to be responsible for all power output work, dynamical system Into in the state of mode one.

6th group of pattern switching: the mutual switching of mode three condition and four state of mode.

This group of pattern switching can also be referred to as the state of driving at moderate speed and drive at moderate speed and the mutual switching of charged state, this There are the motor of power generation mode in two states, when switching, needs to consider the starting or stopping of internal combustion engine 17.This group of mode is cut It changes under the scene that the enforcement of the middling speed in urban district can occur.

Mode three condition to four state of mode switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern three is switched to the state of mode four, if so, determining that first motor 1 needs to be switched to power generation from stop mode The operating mode of mode, the second motor 2 is constant；According to the operational mode change information of first motor 1, internal combustion engine 17 and the are controlled One motor 1 starting, so that each motor is under corresponding operating mode.

When specific implementation, controller 18 records the detection that mode state switches with above-described embodiment.Controller 18 determines After the operational mode change information of first motor 1, the starting of internal combustion engine 17 is first controlled, then starts first motor 1, and make it Revolving speed is synchronous with the revolving speed of internal combustion engine 17, and controls internal combustion engine 17 and first motor 1 is driven to generate electricity, and dynamical system enters mode at this time It works in the state of four.

Four state of mode to mode three condition switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern four is switched to the state of mode three, if so, determining that first motor 1 needs to be switched to stopping from power generation mode The operating mode of mode, the second motor 2 is constant；According to the operational mode change information of first motor 1, controls first motor 1 and stop Only, so that each motor is under corresponding operating mode.

Similarly, for realization principle with the principle of the switching of mode three to four state of mode conversely, specifically, controller 18 can be with Control first motor 1 is slowed down and is stopped, so that dynamical system enters in the state of mode four.

7th group of pattern switching: the mutual switching of mode three condition and five state of mode.

This group of pattern switching can also be referred to as the state of driving at moderate speed and the mutual switching run at high speed, in the two states There is no the motor of power generation mode, without the concern for the starting or stopping of internal combustion engine 17 when switching.This group of pattern switching can be with Occur under the scene of high speed driving.

Mode three condition to five state of mode switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern three is switched to the state of mode five, if so, determining that first motor 1 needs to be switched to driving from stop mode The operating mode of mode, the second motor 2 is constant；According to the operational mode change information of first motor 1, controls first motor 1 and open It is dynamic, so that each motor is under corresponding operating mode.

When specific implementation, controller 18 records the detection that mode state switches with above-described embodiment.Controller 18 determines After the operational mode change information of first motor 1, start first motor 1, so that first motor 1 is participated in power output, at this time power Output services are collectively responsible for by first motor 1 and the second motor 2, and dynamical system works in the state of entering mode five.

Five state of mode to mode three condition switching control strategy: the performance parameter based on automobile judges that automobile is The state of no slave pattern five is switched to the state of mode three, if so, determining that first motor 1 needs to be switched to stopping from drive mode The operating mode of mode, the second motor 2 is constant；According to the operational mode change information of first motor 1, controls first motor 1 and stop Only, so that each motor is under corresponding operating mode.

Similarly, for realization principle with the principle of the switching of mode five to mode three condition conversely, specifically, controller 18 can be with Control first motor 1 is slowed down and is stopped, and power output work all transfers to the second motor 2 to be responsible for, so that dynamical system enters mould In the state of formula three.

In the utility model embodiment, each pattern-based control strategy, such as the corresponding performance parameter of mode state Under the conditions of first motor 1, the second motor 2 operating mode, internal combustion engine 17 starting or the information such as stopping, can prestoring Storage is in controller 18, when detecting performance parameter every time, can quick obtaining to two motors operating mode and The starting of internal combustion engine 17 or Stop message, and control is made in time.

Similarly, the control strategy of each pattern switching, such as the corresponding mode state change information of each pattern switching And/or corresponding performance parameter condition change information and corresponding two motors operational mode change information, internal combustion engine 17 change information can also be pre-stored in controller 18, can be quick when detecting emergence pattern state change every time The change information of the operating mode of two motors and/or the change information of internal combustion engine 17 are obtained, and makes control in time.

In the present embodiment, each above-mentioned mode state is may be implemented by configuring corresponding control strategy in controller 18 Under control and each pattern switching under control, realize stabilization of the dynamical system to power of stroke-increasing electric automobile Output, and can charge in time to on-vehicle battery group W, when not needing power output with timely energy reserve.

The dynamical system of the stroke-increasing electric automobile of the present embodiment, by using above-mentioned technical proposal, use bi-motor with And power drive mechanism A, the power drive request of friction speed rank is realized respectively, reduces the output power to single motor It is required that the power output requirement to on-vehicle battery group is also reduced, to reduce the whole manufacturing cost of vehicle.

In the dynamical system of the stroke-increasing electric automobile of the present embodiment, the motor for being not involved in driving work can be by internal combustion engine 17 drive power generation, provide electricity for another motor for participating in driving work, or on-vehicle battery group W charging, to mention The overall cruising ability of vehicle is risen.And in the dynamical system of the stroke-increasing electric automobile of the present embodiment, internal combustion engine 17 is not direct Power output work is participated in, allows the work of internal combustion engine 17 in optimum efficiency section, reduces internal combustion engine 17 in the loss in inefficient area, To reduce the overall exhaust emissions amount of vehicle；Be conducive to do further the cost, weight and volume of internal combustion engine simultaneously Optimization, so as to optimize the cost, weight and space of dynamical system, and then the cost, again of electric car can be optimized Amount and space.

Fig. 3 is the structural schematic diagram of another embodiment of dynamical system of the stroke-increasing electric automobile of the utility model.Such as Fig. 3 Shown, the dynamical system of the stroke-increasing electric automobile of the present embodiment is a kind of specific implementation of above-mentioned embodiment illustrated in fig. 1.

As shown in figure 3, the power drive mechanism A of the present embodiment may include sun gear 3, at least three planetary gears 4, gear ring 5 and planet carrier 6；Power drive mechanism A can also be referred to as planetary gear mechanism at this time.For example, Fig. 4 mentions for the utility model A kind of structural schematic diagram of the power drive mechanism A of confession.As shown in figure 4, including that three planetary gears 4 are with power drive mechanism A Example, gear ring 5 be arranged outside sun gear 3, three planetary gears 4 are evenly distributed between sun gear 3 and gear ring 5, respectively with the sun Wheel 3 and gear ring 5 engage；Planet carrier 6 is connect at least three planetary gears 4；The input shaft of sun gear 3 and the input shaft of planet carrier 6 First input end M and the second input terminal N respectively as power drive mechanism A, gear ring 5 are used as power output end P.

According to the drive characteristic of planetary gear mechanism, when planet carrier 6 is fixed, and power is inputted from sun gear 3, power is logical Deceleration output will be done by crossing gear ring 5, be suitble to use under the operating condition that starting, climbing etc. need low speed height to turn round；When sun gear 3 is fixed, And power, from when the input of planet carrier 6, power will do acceleration output by gear ring 5, be suitble to travel in urban district in required middling speed It is used under the operating condition of torsion；When power simultaneously from sun gear 3, planet carrier 6 input when, power by gear ring 5 will do speed be superimposed it is defeated Out, it is suitble to use under the operating condition of the low torsion of the high speed needed for highway driving.

Still optionally further, as shown in figure 3, the dynamical system of the stroke-increasing electric automobile of the present embodiment can also include: First clutch 9 between first motor 1 and the first input end M of power drive mechanism A is set, the one of first clutch 9 The output axis connection at end and first motor 1, the input axis connection of the other end and sun gear 3；

Second clutch 10 between second motor 2 and the second input terminal N of power drive mechanism A is set, second from The output axis connection of one end of clutch 10 and the second motor 2, the input axis connection of the other end and planet carrier 6；

First clutch 9 and second clutch 10 are connect with controller 18 respectively, and controller 18 is for controlling the first clutch The separation and closure of device 9 and second clutch 10, to control company's make and break of first motor 1 and power drive mechanism A respectively It opens and the connection and disconnection of the second motor 2 and power drive mechanism A.

Still optionally further, as shown in figure 3, the dynamical system of the stroke-increasing electric automobile of the present embodiment can also include: The second lock device 8 for controlling the first lock device 7 of sun gear 3 and for controlling planet carrier 6, the first lock device 7 and second Lock device 8 is connect with controller 18 respectively；

When controller 18 controls the engagement of the first lock device 7, so that sun gear 3 is fixed；Controller 18 controls the first lock device 7 When separation, sun gear 3 is allowed to rotate；

When controller 18 controls the engagement of the second lock device 8, so that planet carrier 6 is fixed；Controller 18 controls the second lock device 8 When separation, planet carrier 6 is allowed to rotate.

In practical application, the first lock device 7 and the second lock device 8 will not be simultaneously engaged with or be separated, but one in point From one is in engagement, to realize the power input of friction speed rank.

Still optionally further, as shown in figure 3, the dynamical system of the stroke-increasing electric automobile of the present embodiment can also include: First gear group between internal combustion engine 17 and first motor 1 is set and is arranged between internal combustion engine 17 and the second motor 2 Second gear group；First gear group includes the first driving wheel 13 and the first driven wheel 14, and second gear group includes the second driving wheel 15 and second driven wheel 16；

The output shaft of the internal combustion engine 17 input axis connection with the input shaft of the first driving wheel 13 and the second driving wheel 15 respectively； The output shaft of first driven wheel 14 and the input axis connection of first motor 1；The output shaft of second driven wheel 16 and the second motor 2 Input axis connection.

Still optionally further, as shown in figure 3, in the dynamical system of the stroke-increasing electric automobile of the present embodiment, first from It is additionally provided with third clutch 11 between the output shaft of driving wheel 14 and the input shaft of first motor 1, in the defeated of the second driven wheel 16 The 4th clutch 12 is additionally provided between shaft and the input shaft of the second motor 2；

Third clutch 11 and the 4th clutch 12 are connect with controller 18 respectively, and controller 18 is for controlling third clutch The separation and closure of device 11 and the 4th clutch 12.

In practical application, above-mentioned optinal plan can use combinative mode any combination, form the utility model Alternative embodiment.In embodiment illustrated in fig. 3, the technical side of the utility model is described for including above-mentioned all optinal plans Case.

Moreover, the dynamical system of the stroke-increasing electric automobile of the present embodiment is by increasing compared with embodiment illustrated in fig. 1 Multiple above-mentioned connecting components carry out pilot controller 18 and realize control, so that all control functions be avoided all to concentrate on controller 18 In, the function of simplified control device 18.Certainly, according to structure shown in FIG. 1, the function of abundant controller 18 also can be realized above-mentioned All controls of embodiment.

Fig. 5 is the control schematic diagram of the dynamical system of the stroke-increasing electric automobile of the utility model.As shown in figure 5, in conjunction with The record of above-described embodiment, it is known that controller 18 can be electric with the first motor 1, second in embodiment illustrated in fig. 3 respectively Machine 2, the first lock device 7, the second lock device 8, first clutch 9, second clutch 10, third clutch 11, the 4th clutch 12 and internal combustion engine 17 communicate to connect, to first motor 1, the second motor 2, the first lock device 7, the second lock device 8, the first clutch Device 9, second clutch 10, third clutch 11, the 4th clutch 12 and internal combustion engine 17 are respectively controlled, to realize to power The control of system.Controller 18 can be according to current vehicle speed, on-vehicle battery group charge level, brake pedal, accelerator pedal and electronic The input signal of conventional arrangement of various sensors etc. judges the specific works mode of dynamical system in automobile, according to various works The practical situation of operation mode controls the starting and stopping of first motor 1, the second motor 2 and internal combustion engine 17, the first lock device 7, Second lock device 8, first clutch 9, second clutch 10, third clutch 11, the 4th clutch 12 engagement with separate.

In the dynamical system of the stroke-increasing electric automobile of the present embodiment, two motors of control and internal combustion engine 17 can be passed through The engagement of start and stop, two lock devices and four clutches with separate, realize under different operating conditions use different works Operation mode drives vehicle, and in vehicle-loaded battery electricity quantity deficiency, so that the internal combustion engine 17 is driven one of motor to generate electricity and mend Charge volume.

First motor 1, the second motor 2, sun gear 3, gear ring 5, planet carrier 6, the first driven wheel 14 of first gear group, Second driven wheel 16 of two gear sets is arranged using coaxial manner.It is arranged between 3 input shaft of 1 output shaft of first motor and sun gear First clutch 9 is also provided with first lock device 7 on 3 input shaft of sun gear, when first lock device 7 be set as separation and When first clutch 9 is set as engagement, first motor 1 enters drive mode；14 output shaft of the first driven wheel of first gear group Third clutch 11 is provided between 1 input shaft of first motor, when first clutch 9 is set as separation and third clutch 11 When being set as engagement, first motor 1 enters power generation mode；The is provided between 6 input shaft of second motor, 2 output shaft and planet carrier Two clutches 10 are also provided with second lock device 8 on 6 input shaft of planet carrier, when the second lock device 8 is set as separation and second When clutch 10 is set as engagement, the second motor 2 enters drive mode；15 output shaft of the second driven wheel of second gear group and Between two motors, 2 input shaft be provided with the 4th clutch 12, when second clutch 10 be set as separation and the 4th clutch 12 set When being set to engagement, the second motor 2 enters power generation mode.

In addition, the driving wheel 15 of the driving wheel 13 of first gear group, second gear group, internal combustion engine 17 use coaxial manner cloth It sets, the output shaft of internal combustion engine 17 and 13 input shaft of the first driving wheel, the second driving wheel of second gear group of first gear group are defeated Enter axis 15 and inputs axis connection.First motor 1 and the second motor 2 have similar power, and internal combustion engine 17 drives first motor 1 and the The electricity that the one of work of both two motors 2 is issued in generate mode is greater than the work of another motor in driving mould Required electricity under formula, the extra electricity that generates electricity are the charging of on-vehicle battery group.First driving wheel 13 of first gear group With the gear ratio of the first driven wheel 14 of first gear group, according to the best combustion efficiency revolving speed section of internal combustion engine 17, Yi Ji The best generating efficiency revolving speed section of one motor 1 is arranged to match.The second driving wheel 15 and second gear group of second gear group The second driven wheel 16 gear ratio, according to internal combustion engine 17 best combustion efficiency revolving speed section and the second motor 2 it is best Generating efficiency revolving speed section is arranged to match.

Explanation is needed further exist for, with reference to the control strategy of the configuration of controller 18 of above-mentioned embodiment illustrated in fig. 1, Fig. 3 It is also required to configure some corresponding control plans in controller 18 in the dynamical system of the stroke-increasing electric automobile of illustrated embodiment Slightly.For example, corresponding to the control strategy of six kinds of modes of above-described embodiment, following table 1 is described in embodiment illustrated in fig. 3, right The corresponding relationship and its corresponding control strategy of the six kinds of modes and operating condition and on-vehicle battery group charge level answered.

Table 1

Below with reference to the six kinds of modes and above-mentioned table 1 in above-mentioned embodiment illustrated in fig. 1, embodiment illustrated in fig. 3 is described The control strategy and realization process of six kinds of modes.

Mode one: controller 18 judge speed whether less than the electricity of the first pre-set velocity threshold value and on-vehicle battery group whether Not less than default power threshold；If so, determining that the operating mode of first motor 1 is drive mode, the second motor 2 is to stop mould Formula；As shown in figure 3, controller 18 controls the starting of first motor 1 and makes its work in drive mode at this time, the second motor 2 is controlled Stop, internal combustion engine 17 can be off or start, and control the first lock device 7, second clutch 10, third clutch 11 and the 4th Clutch 12 separates, and controls the second lock device 8 and first clutch 9 engages.Only one freedom degree of planetary gear 4 at this time, first The power of motor 1 is inputted by sun gear 3, and is exported via gear ring 5.According to the drive characteristic of planetary gear mechanism, it is at this time The output of deceleration torque increase, the operating mode can be used for starting to walk, move backward and climb etc. to run at a low speed operating condition.Further, if stepping at this time Brake pedal makes vehicle braking, and first motor 1 will be in generating state, and what is issued supplies electricity to the charging of on-vehicle battery group, can be used It recovers energy in braking.

Mode two: if controller 18 detects that speed is lower than less than the electricity of the first pre-set velocity threshold value but on-vehicle battery group Default power threshold；The operating mode for determining first motor 1 is drive mode, and the second motor 2 is power generation mode；As shown in figure 3, Start at this point, controller 18 controls first motor 1 and make its work in drive mode, controls internal combustion engine 17 and start, control second Motor 2, which starts, simultaneously to work under the drive of internal combustion engine 17 in power generation mode, controls the first lock device 7, second clutch 10 and the The separation of three clutches 11, the second lock device 8 of control, first clutch 9 and the engagement of the 4th clutch 12.Planetary gear 4 only has at this time The power of one degree of freedom, first motor 1 is inputted by sun gear 3, and is exported via gear ring 5.The electricity that second motor 2 issues Amount is preferentially supplied to the use of first motor 1, and extra electricity charges to on-vehicle battery group.Further, it is stepped on if stepping on braking at this time Plate makes vehicle braking, and first motor 1 will also be in generating state, and the electricity issued also charges to on-vehicle battery group, can be used for Braking recovers energy.

Mode three: controller 18 judges whether speed is not less than the first pre-set velocity threshold value and no more than the second pre-set velocity Threshold value, and whether the electricity of on-vehicle battery group W is not less than default power threshold；Second pre-set velocity threshold value is greater than the first default speed Spend threshold value.If so, determining that the operating mode of the second motor 2 is drive mode, first motor 2 is stop mode；As shown in figure 3, Start at this point, controller 18 controls the second motor 2 and make its work in drive mode, controls first motor 1 and stop, controlling internal combustion Machine 17 can be off or start, and the second lock device 8 of control, first clutch 9, third clutch 11 and the 4th clutch 12 divide From the first lock device 7 of control and second clutch 10 engage.Only one freedom degree of planetary gear 4 at this time, the second motor 2 move Power is inputted by planet carrier 6, and is exported via gear ring 5.It is to accelerate drop torsion defeated at this time according to the drive characteristic of planetary gear mechanism Out, which can be used for operating condition of driving at moderate speed in urban district.Further, if stepping on brake pedal at this time makes vehicle braking, the Two motors 2 will be in generating state, and what is issued supplies electricity to the charging of on-vehicle battery group, can be used for braking and recover energy.

Mode four: if controller 18 detects speed not less than the first pre-set velocity threshold value and no more than the second pre-set velocity Threshold value, but when the electricity of on-vehicle battery group is lower than default power threshold, determine the operating mode of the second motor 2 for driving mould Formula, first motor 1 are power generation mode；As shown in figure 3, at this point, controller 18 controls the starting of the second motor 2 and is driving its work Dynamic model formula, control internal combustion engine 17 start, and control first motor 1 starts and works under the drive of internal combustion engine 17 in power generation mode, Control the second lock device 8, first clutch 9 and the 4th clutch 12 separation, control the first lock device 7, second clutch 10 and Third clutch 11 engages.The power of only one freedom degree of planetary gear 4 at this time, the second motor 2 is inputted by planet carrier 6, and It is exported via gear ring 5.The electricity that first motor 1 issues preferentially is supplied to the use of the second motor 2, and extra electricity is to vehicle mounted electric The charging of pond group.Further, if stepping on brake pedal at this time makes vehicle braking, the second motor 2 will also be in generating state, issue Electricity also give on-vehicle battery group charging, can be used for brake recover energy.

Mode five: controller 18 judges whether speed is not less than the second pre-set velocity threshold value, and the electricity of on-vehicle battery group Whether not less than default power threshold；If so, the operating mode for determining first motor 1 and the second motor 2 is drive mode；Such as figure Shown in 3, at this point, controller 18 controls first motor 1 and the second motor 2 starts and works at the same time it in drive mode, control Internal combustion engine 17 can be off or start, and the first lock device 7 of control, the separation of the second lock device 8 control third clutch 11 and the The separation of four clutches 12, controls first clutch 9 and second clutch 10 engages.Freedom degree there are two planetary gears 4 at this time, first The power of motor 1 is inputted by sun gear 3, and the power of the second motor 2 is inputted by planet carrier 6, and passes through planetary gear mechanism It is exported after carrying out revolving speed coupling by gear ring 5.Be limited to the gross output of on-vehicle battery group, compare mode four, be at this time into One step accelerates drop to turn round output, which can be used for highway driving operating condition.Further, if stepping on brake pedal at this time makes Vehicle braking, first motor 1 and the second motor 2 will be in generating state simultaneously, and what is issued supplies electricity to the charging of on-vehicle battery group, It can be used for braking and recover energy.

Mode six: controller 18 judges whether speed is 0 (whether being the state of parking), and the electricity of on-vehicle battery group is It is no to be lower than default power threshold；If so, the operating mode for determining first motor and the second motor is power generation mode；As shown in figure 3, Controller 18 controls internal combustion engine 17 and starts at this time, controls first motor 1 and the starting of the second motor 2 and under the drive of internal combustion engine 17 It works at the same time in power generation mode, controls the first lock device 7, the separation of the second lock device 8, control first clutch 9 and the second clutch Device 10 separates, third clutch 11 and the engagement of the 4th clutch 12.During the operating mode can be used for long-distance running, utilize The bait time is that on-vehicle battery group quickly supplements electricity, in order to which next driving process can enter mode five, thus Obtain higher travel speed.

In practical application, other modes can also be increased according to other performance parameters in running car, herein no longer Citing repeats one by one.

Still optionally further, the dynamical system of the stroke-increasing electric automobile of embodiment illustrated in fig. 3, under car state on the berth, One motor 1, the second motor 2 and internal combustion engine 17 are in halted state, the first lock device 7, the second lock device 8, first clutch 9, second clutch 10, third clutch 11 and the 4th clutch 12 are in discrete state.In vehicle travel process, mode One, it can be automatically switched according to actual condition between mode two, mode three, mode four and mode five, and can accomplished in handoff procedure The effect of power failure-free.Specifically, with reference to each pattern switching of above-mentioned embodiment illustrated in fig. 1 and embodiment illustrated in fig. 3 The control strategy of each mode introduces the control strategy of the various pattern switchings of embodiment illustrated in fig. 3 and realizes process.

First group of pattern switching: the mutual switching of state of parking and mode six.

It is switched to mode six from the state of parking, controller 18 first starts internal combustion engine 17, then starts first motor 1 and makes it Revolving speed is synchronous with the revolving speed of driven wheel 14 of first gear group, while starting the second motor 2 and making its revolving speed and second gear group Driven wheel 16 revolving speed it is synchronous, finally engage third clutch 11 and the 4th clutch 12, internal combustion engine 17 made to drive the first electricity Machine 1 and the power generation of the second motor 2.

Slave pattern six is switched to the state of parking, and controller 18 controls internal combustion engine 17 and first slows down and stop, at this time first motor 1 And second motor 2 stopped, last controller 18 separates third clutch 11 and the 4th clutch 12, returns to the state of parking.

Second group of pattern switching: the mutual switching of state of parking and mode one.

It is switched to mode one from the state of parking, controller 18 first engages the second lock device 8 and first clutch 9, then opens Dynamic first motor 1 simultaneously makes its work in drive mode.

Slave pattern one is switched to the state of parking, and controller 18 controls first motor 1 and first slows down and stop, and then separates second Lock device 8 and first clutch 9, return to the state of parking.

Third group pattern switching: the mutual switching of mode one and mode two.

Slave pattern one is switched to mode two, if internal combustion engine 17 is off state at this time, controller 18 first starts internal combustion engine 17, Then start the second motor 2 and keep its revolving speed synchronous with the revolving speed of internal combustion engine 17, finally engage the 4th clutch 12, make internal combustion engine 17 drive the power generation of the second motor 2.

Slave pattern two is switched to mode one, and controller 18 first separates the 4th clutch 12, then controls the deceleration of the second motor 2 And stop.

4th group of pattern switching: the mutual switching of mode one and mode three.

Slave pattern one is switched to mode three, and controller 18 first starts the second motor 2 and support its output torque just can Disappear the reactive torque of planet carrier 4, then separates the second lock device 8, the second motor 2 is made to simultaneously participate in power output, then make One motor 1 slows down, and when the revolving speed of first motor 1 is reduced to 0, engages the first lock device 7, and power output work at this time is all transferred to Second motor 2 is responsible for.

Slave pattern three is switched to mode one, and controller 18 first starts first motor 1 and support its output torque just can Disappear the reactive torque of sun gear 3, then separates the first lock device 7, first motor 1 is made to simultaneously participate in power output, then make Two motors 2 slow down, and when the revolving speed of the second motor 2 is reduced to 0, engage the second lock device 8, and power output work at this time is all transferred to First motor 1 is responsible for.

5th group of pattern switching: the mutual switching of mode one and mode five.

Slave pattern one is switched to mode five, and controller 18 first starts the second motor 2 and support its output torque just can Disappear the reactive torque of planet carrier 4, then separates the second lock device 8, so that the second motor 2 is simultaneously participated in power output, at this time power Output services are collectively responsible for by first motor 1 and the second motor 2.

Slave pattern five is switched to mode one, and controller 18 controls the second motor 2 and slows down, when the revolving speed of the second motor 2 is reduced to 0 When, the second lock device 8 is engaged, power output work at this time all transfers to first motor 1 to be responsible for.

6th group of pattern switching: the mutual switching of mode three and mode four.

Slave pattern three is switched to mode four, if internal combustion engine 17 is off state at this time, controller 18 first starts internal combustion engine 17, Then start first motor 1 and keep its revolving speed synchronous with the revolving speed of internal combustion engine 17, finally engage third clutch 11, make internal combustion engine 17 drive first motor 1 to generate electricity.

Slave pattern four is switched to mode three, and controller 18 first separates third clutch 11, then controls first motor 1 and slows down And stop.

7th group of pattern switching: the mutual switching of mode three and mode five.

Slave pattern three is switched to mode five, and controller 18 first starts first motor 1 and support its output torque just can Disappear the reactive torque of sun gear 3, then separates the first lock device 7, so that first motor 1 is simultaneously participated in power output, at this time power Output services are collectively responsible for by first motor 1 and the second motor 2.

Slave pattern five is switched to mode three, and controller 18 controls first motor 1 and slows down, when the revolving speed of first motor 1 is reduced to 0 When, the first lock device 7 is engaged, power output work at this time all transfers to the second motor 2 to be responsible for.

In the present embodiment, the control strategy of any of the above-described mode and pattern switching can configure in the controller, so as to The dynamical system of above-mentioned stroke-increasing electric automobile is effectively controlled based on the control strategy realization of configuration in controller 18.

In conclusion controller 18 passes through the revolving speed for adjusting two motors in the switching transition of different working modes, with And the collaborative work of each lock device and clutch, realize the effect of power failure-free in handoff procedure.

The dynamical system of the stroke-increasing electric automobile of the present embodiment, by using two motors, a planetary gear mechanism, The mode of two lock devices and four clutch engagements can meet the drive of speed operation, middling speed operating condition and high-speed working condition simultaneously It is dynamic to require, the demanded power output to single motor is reduced, the power output requirement to on-vehicle battery group is also reduced, thus Reduce the whole manufacturing cost of vehicle.Similarly, the dynamical system of the present embodiment can not only reduce the overall tail gas of vehicle Discharge amount；Be conducive to be further optimized the cost, weight and volume of internal combustion engine simultaneously, so as to optimize dynamical system Cost, weight and the space of system, and then optimize cost, weight and the space of vehicle.And the extended-range of the present embodiment is electronic In the dynamical system of automobile, the motor for being not involved in driving work can be generated electricity by internal-combustion engine drives, participate in driving work for another The motor of work provides electricity, or the charging of on-vehicle battery group, to improve the overall cruising ability of vehicle.

The utility model also provides a kind of stroke-increasing electric automobile, the stroke-increasing electric automobile can using above-mentioned Fig. 1 or The dynamical system of the stroke-increasing electric automobile of person's embodiment illustrated in fig. 3 can be recorded, In with reference to the related of above-described embodiment in detail This is repeated no more.And the stroke-increasing electric automobile of the present embodiment can inherit the institute of the dynamical system of above-mentioned stroke-increasing electric automobile It is advantageous, it is recorded referring in detail to the correlation of above-described embodiment, details are not described herein.

Fig. 6 is the flow chart of the control method embodiment of the dynamical system of the stroke-increasing electric automobile of the utility model.This The dynamical system of the stroke-increasing electric automobile of embodiment can refer to above-mentioned Fig. 1 or the extended-range of embodiment illustrated in fig. 3 is electronic The dynamical system of automobile, details are not described herein.The control method of the dynamical system of the stroke-increasing electric automobile of the present embodiment, specifically It may include steps of:

S100, detection and the performance parameter for obtaining automobile；

S101, the performance parameter based on automobile determine first motor and the respective operating mode of the second motor；

S102, according to first motor and the respective operating mode of the second motor, control first motor and the second motor Respective starting or stopping, so that each motor is under corresponding operating mode.

The operating mode of the first motor of the present embodiment and the second motor may include drive mode, power generation mode and fill Any one in power mode.

Still optionally further, if internal combustion engine start is controlled, with band there are when power generation mode in first motor and the second motor The dynamic corresponding first motor of power generation mode and/or the second electric power generation.

Further optionally, it in the step S100 of the present embodiment " performance parameter for detecting and obtaining automobile ", specifically can wrap It includes: detecting and obtain the speed of automobile and the electricity of on-vehicle battery group.

It should be noted that the specific implementation process of the control method of the present embodiment can be implemented with reference to shown in above-mentioned Fig. 1 In example, when the corresponding control strategy configured in the controller, the realization process of control strategy is executed, referring in detail to above-mentioned correlation The record of embodiment, details are not described herein.

Further optionally, the control method of the dynamical system of the stroke-increasing electric automobile of the present embodiment can also include adopting The control method realized with the control strategy of the relevant six kinds of modes of above-mentioned embodiment illustrated in fig. 1, and use corresponding 7 groups The control method that the control strategy of pattern switching is realized.The record of above-mentioned related embodiment can be referred in detail, herein no longer It repeats.

Similarly, the control method of the dynamical system of the stroke-increasing electric automobile of the present embodiment can also include using above-mentioned The control method that the control strategy of the relevant six kinds of modes of embodiment illustrated in fig. 3 is realized, and cut using corresponding 7 groups of modes The control method that the control strategy changed is realized.The record of above-mentioned related embodiment can be referred in detail, and details are not described herein.

Example above primarily illustrates the dynamical system of the stroke-increasing electric automobile of the utility model, the electronic vapour with it Vehicle.Although only some of the embodiments of the present invention are described, those of ordinary skill in the art should Understand, the utility model can implemented without departing from its spirit in range in many other form.Therefore, the example shown Son is considered as illustrative and not restrictive with embodiment, originally practical as defined in appended claims not departing from In the case where novel technical idea, the utility model may cover various modification and replacement.

Those skilled in the art will also understand is that, various illustrative logical blocks, mould in conjunction with described in disclosure herein Block, circuit and algorithm steps may be implemented as the combination of electronic hardware, computer software or both.

The flow chart and block diagram in the drawings show the system and method for multiple embodiments according to the present utility model can The architecture, function and operation being able to achieve.In this regard, each box in flowchart or block diagram can represent a mould A part of block, program segment or code, a part of the module, section or code include one or more for realizing rule The executable instruction of fixed logic function.It should also be noted that in some implementations as replacements, the function of being marked in box It can also be occurred with being different from the sequence marked in attached drawing.For example, two continuous boxes can actually be substantially in parallel It executes, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that block diagram and/ Or the combination of each box in flow chart and the box in block diagram and or flow chart, can with execute as defined in function or The dedicated hardware based system of operation is realized, or can be realized using a combination of dedicated hardware and computer instructions.

Each embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and And it is also not necessarily limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for Many modifications and changes are obvious for those skilled in the art.The choosing of term used herein It selects, it is intended to best explain the principle, practical application or the improvement to the technology in market of each embodiment, or lead this technology Other those of ordinary skill in domain can understand each embodiment disclosed herein.

Claims (10)

1. a kind of dynamical system of stroke-increasing electric automobile, which is characterized in that the system comprises first motor, the second motor, Power drive mechanism, internal combustion engine, controller and on-vehicle battery group；The power drive mechanism is provided with first input end, second Input terminal and power output end；The first motor is connect with the first input end, realizes the input of First Speed rank power； Second motor is connect with second input terminal, realizes the input of second speed rank power；The on-vehicle battery group difference It is connect with the first motor and second motor；

The controller is connect with the first motor, second motor and the internal combustion engine respectively, controls first electricity Machine, second motor and the respective starting of the internal combustion engine or stopping；The internal combustion engine respectively with the first motor and The second motor connection, and the first motor and/or second motor can be driven under the control of the controller Power generation.

2. system according to claim 1, which is characterized in that the operating mode of the first motor and second motor Including drive mode, power generation mode or stop mode；The first motor and second motor can be in identical work simultaneously Operation mode or different working modes.

3. system according to claim 2, which is characterized in that the controller is used in the first motor and described the There are when power generation mode in two motors, the internal combustion engine start is controlled, to drive corresponding first electricity of the power generation mode Machine and/or second electric power generation.

4. system according to claim 1 to 3, which is characterized in that the power drive mechanism includes sun gear, extremely Few three planetary gears, gear ring and planet carrier；Wherein, the gear ring is arranged outside the sun gear, at least three planet Wheel is evenly distributed between the sun gear and the gear ring, is engaged respectively with the sun gear and the gear ring；The planet Frame is connect at least three planetary gear；The input shaft of the input shaft of the sun gear and the planet carrier is respectively as described First input end and second input terminal, the gear ring is as the power output end.

5. system according to claim 4, which is characterized in that the system also includes:

First clutch between the first motor and the first input end of the power drive mechanism is set, it is described The output axis connection of one end of first clutch and the first motor, the input axis connection of the other end and the sun gear；

Second clutch between second motor and second input terminal of the power drive mechanism is set, it is described The output axis connection of one end of second clutch and second motor, the input axis connection of the other end and the planet carrier；

The first clutch and the second clutch are connect with the controller respectively, and the controller is described for controlling The separation and closure of first clutch and the second clutch.

6. system according to claim 5, the system also includes: for control the sun gear the first lock device and For controlling the second lock device of the planet carrier, first lock device and second lock device respectively with the controller Connection；

When the controller controls first lock device engagement, so that the sun gear is fixed；Described in the controller control When first lock device separates, the sun gear is allowed to rotate；

When the controller controls second lock device engagement, so that the planet carrier is fixed；Described in the controller control When second lock device separates, the planet carrier is allowed to rotate.

7. system according to claim 6, the system also includes:

Be arranged in the first gear group between the internal combustion engine and the first motor and setting the internal combustion engine with it is described Second gear group between second motor；The first gear group includes the first driving wheel and the first driven wheel, second tooth Wheel group includes the second driving wheel and the second driven wheel；

The output shaft of the internal combustion engine connects with the input shaft of the input shaft of first driving wheel and second driving wheel respectively It connects；The output shaft of first driven wheel and the input axis connection of the first motor；The output shaft of second driven wheel with The input axis connection of second motor.

8. system according to claim 7, which is characterized in that in the output shaft and first electricity of first driven wheel Third clutch is additionally provided between the input shaft of machine, in the input of the output shaft and second motor of second driven wheel The 4th clutch is additionally provided between axis；

The third clutch and the 4th clutch are connect with the controller respectively, and the controller is described for controlling The separation and closure of third clutch and the 4th clutch.

9. according to any system of claim 5-8, which is characterized in that if the first motor and/or second electricity When machine is in drive mode, the on-vehicle battery group provides electric energy for the first motor and/or second motor；If described When first motor and/or second motor are in power generation mode, the controller be also used to control by the first motor and/ Or the electricity that second motor issues, partly or entirely charge to the on-vehicle battery group.

10. a kind of stroke-increasing electric automobile, which is characterized in that the stroke-increasing electric automobile is appointed using claim 1-9 as above Dynamical system described in one.