CN105730447B - A kind of hybrid electric vehicle vehicle mode switch control method and system - Google Patents
A kind of hybrid electric vehicle vehicle mode switch control method and system Download PDFInfo
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Abstract
A kind of hybrid electric vehicle vehicle mode switch control method and system, the following steps are included: when the realistic model of vehicle is electric-only mode, detect that the demand torque of driver is greater than pure electric vehicle-series model switching calibration value, the desired pattern of vehicle becomes series model；Automobile start power generation all-in-one machine is controlled to start engine, the realistic model of vehicle is still electric-only mode at this time；Detect that engine start is completed, the realistic model of vehicle is switched to series model from electric-only mode.Solve that full-vehicle control mode in existing full-vehicle control mode switching method is more, technical problem of mode changeover condition complexity.Can control logic simply clearly on the basis of, timely, reasonable, the smooth switching of the various modes of vehicle is realized, and realize the reasonable distribution of electric energy and fuel energy, to guarantee good performance of start and stop and driving while energy consumption is greatly reduced.
Description
Technical field
The present invention relates to technical field of vehicle control.Specifically, being related to a kind of hybrid electric vehicle vehicle pattern switching control
Method and system processed.
Background technique
As shown in Figure 1, being existing hybrid power system for automobile structure, solid line indicates that mechanical connection, dotted line indicate control
Signal, including engine, clutch, clutch actuating mechanism, ISG motor, driving motor, AMT gearbox and main reducing gear.It should
Hybrid power system is bi-motor single clutch mode, and control system is complicated, but pure electric vehicle, series, parallel, start-stop may be implemented
Etc. the switching of various modes.
In above-mentioned hybrid power system, full-vehicle control mode is switched to one of key technology, passes through each full-vehicle control mould
The switching of formula is able to achieve the reasonable distribution of good performance of start and stop, electric energy and fuel energy, and energy consumption is greatly reduced to realize
Guarantee driving simultaneously.
The shortcomings that existing full-vehicle control mode switching method has: 1) existing full-vehicle control mode switching method is more multiple
Miscellaneous, full-vehicle control mode quantity is more, is divided into pure electric vehicle, engine start, engine shutdown, series model, paralleling model, mode
Clutch closure, regime clutch separation, feedback braking mode etc., mode changeover condition is more complex, so that full-vehicle control mode
Switching it is easy to appear problems；2) compatibility of software is insufficient, increases a function, it is necessary to increase one mode, so that soft
The change amount of part system is very big.
Under electric-only mode, vehicle is travelled by motor and using the electric power from driving battery supplied；?
In series model, ISG electric motor starting simultaneously generates electricity, and supply motor drives vehicle driving simultaneously with driving battery；In paralleling model,
Vehicle drives vehicle driving by engine, motor and ISG motor jointly, can play the maximum value of entire dynamical system.
Therefore, it when vehicle has just started starting, needs to need to be switched to when it accelerates to certain speed in electric-only mode downward driving
Series model traveling, in driver's depth step on the gas pedal, it is desirable to which vehicle when driving, is then needed vehicle mode at high speeds
It is switched to paralleling model.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in full-vehicle control moulds in existing full-vehicle control mode switching method
Formula is more, mode changeover condition is complicated, thus there are three types of proposing a kind of full-vehicle control mode only, can be simply clear in control logic
On the basis of realize hybrid electric vehicle vehicle mode switch control method and system that various modes rationally switch in time.
In order to solve the above technical problems, the present invention provides the following technical scheme that
A kind of hybrid electric vehicle vehicle mode switch control method, comprising the following steps:
When the realistic model of vehicle is electric-only mode, detect that the demand torque of driver is greater than pure electric vehicle-series connection mould
Formula switches calibration value, and the desired pattern of vehicle becomes series model, the tread-on quantity that the demand torque of driver passes through gas pedal
To judge；
Automobile start power generation all-in-one machine is controlled to start engine, the realistic model of vehicle is still electric-only mode at this time；
Detect that engine start is completed, the realistic model of vehicle is switched to series model from electric-only mode.
As optimization, when the realistic model of vehicle is electric-only mode, detect that the demand torque of driver is greater than pure electricity
Before the step of dynamic-series model switches calibration value, and the desired pattern of vehicle becomes series model further include:
When vehicle is in upper high pressure dead ship condition, detect that the demand torque of driver is greater than 0 and is less than pure electric vehicle-series connection
Pattern switching calibration value, the desired pattern and realistic model of vehicle are electric-only mode.
As optimization, when vehicle is in upper high pressure dead ship condition, the demand torque of driver is 0, speed and engine
Revolving speed is 0, clutch is that discrete state, the desired pattern of vehicle and realistic model are electric-only mode.
As optimization, detect that engine start is completed, the realistic model of vehicle is switched to series connection mould from electric-only mode
After the step of formula further include:
Detect that the demand torque of driver is less than series connection-electric-only mode switching calibration value, the desired pattern of vehicle becomes
For electric-only mode, series connection-electric-only mode switching calibration value is less than pure electric vehicle-series model and switches calibration value；
Engine is controlled to shut down；
Detect that engine has been shut down, the realistic model of vehicle is switched to electric-only mode from series model.
As optimization, detect that engine start is completed, the realistic model of vehicle is switched to series connection mould from electric-only mode
After the step of formula further include:
Detect that the demand torque of driver is greater than serial-parallel pattern switching calibration value, the desired pattern of vehicle becomes
Paralleling model, serial-parallel pattern switching calibration value are greater than pure electric vehicle-series model and switch calibration value；
Control clutch starts to be closed, and the realistic model of vehicle is still series model at this time；
Detect that clutch closure is completed, the realistic model of vehicle is switched to paralleling model from series model.
As optimization, detect that clutch closure is completed, the realistic model of vehicle is switched to paralleling model from series model
The step of after further include:
Detect that the demand torque of driver is less than multiple-series pattern switching calibration value, the desired pattern of vehicle becomes
Series model, multiple-series pattern switching calibration value is less than serial-parallel pattern switching calibration value, and is greater than pure electric vehicle-series connection
Pattern switching calibration value；
Control clutch is initially separated, and the realistic model of vehicle is still paralleling model at this time；
Detect that clutch separation is completed, the realistic model of vehicle is switched to series model from paralleling model.
As optimization, when the desired pattern and realistic model of vehicle are series model, vehicle control unit controls engine
Do moment of torsion control, motor does speed closed loop control.
A kind of hybrid electric vehicle vehicle mode switching control system, comprising:
First demand torque detection module: when the realistic model of vehicle is electric-only mode, the demand of driver is detected
Torque is greater than pure electric vehicle-series model and switches calibration value, and the desired pattern of vehicle becomes series model；
Engine start control module: control automobile start power generation all-in-one machine starts engine, at this time the reality of vehicle
Mode is still electric-only mode；
First engine detection module: detect that engine start is completed, the realistic model of vehicle is cut from electric-only mode
It is changed to series model.
As optimization, before the first demand torque detection module further include:
Second demand torque detection module: when vehicle is in upper high pressure dead ship condition, the demand torque of driver is detected
Greater than 0 and it is less than pure electric vehicle-series model switching calibration value, the desired pattern and realistic model of vehicle are electric-only mode.
As optimization, further includes:
Third demand torque detection module: it when the desired pattern and realistic model of vehicle are series model, detect and drives
The demand torque for the person of sailing is less than series connection-electric-only mode and switches calibration value, and the desired pattern of vehicle becomes electric-only mode；
Engine shuts down control module: control engine is shut down；
Second engine detection module: detecting that engine has been shut down, and the realistic model of vehicle switches from series model
For electric-only mode.
As optimization, further includes:
4th demand torque detection module: it when the desired pattern and realistic model of vehicle are series model, detect and drives
The demand torque for the person of sailing is greater than serial-parallel pattern switching calibration value, and the desired pattern of vehicle becomes paralleling model；
Clutch is closed control module: control clutch starts to be closed, and the realistic model of vehicle is still series model at this time；
First clutch detection module: detect that clutch closure is completed, the realistic model of vehicle switches from series model
For paralleling model.
As optimization, further includes:
5th demand torque detection module: it when the desired pattern of vehicle and realistic model are paralleling model, detects
The demand torque of driver is less than multiple-series pattern switching calibration value, and the desired pattern of vehicle becomes series model；
Clutch separation control module: control clutch is initially separated, and the realistic model of vehicle is still paralleling model at this time；
Second clutch detection module: detecting that clutch separation is completed, and the realistic model of vehicle switches from paralleling model
For series model.
The above technical solution of the present invention has the following advantages over the prior art:
A kind of hybrid electric vehicle vehicle mode switch control method provided by the invention and system, full-vehicle control mode is only
There are three types of, be electric-only mode, series model and paralleling model, while introduce vehicle desired pattern and realistic model it is general
It reads.Under some battery SOC, the desired pattern of vehicle is determined by the expectation torque and speed of driver.The practical mould of vehicle
Formula is determined by the state of engine speed and clutch.Can control logic simply clearly on the basis of, realize each of vehicle
Timely, reasonable, the smooth switching of kind mode, and realize the reasonable distribution of electric energy and fuel energy, thus energy is greatly reduced
Guarantee good performance of start and stop and driving while consumption.
Detailed description of the invention
Fig. 1 is a kind of mixed power system structure schematic diagram in the prior art；
Fig. 2 is a kind of hybrid electric vehicle vehicle mode switch control method flow chart of one embodiment of the invention；
Fig. 3 is the desired pattern switching schematic diagram of the vehicle of one embodiment of the invention；
Fig. 4 is the realistic model switching schematic diagram of the vehicle of one embodiment of the invention；
Fig. 5 is a kind of pure electric vehicle of another embodiment of the present invention, series, parallel mode successively switching sequence figure；
Fig. 6 is a kind of hybrid electric vehicle vehicle mode switching control system of one embodiment of the invention.
Specific embodiment
Content in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawings and examples to this
Technical solution provided by inventing is described in further detail.
Embodiment 1
As in Figure 2-4, a kind of hybrid electric vehicle vehicle mode switch control method is present embodiments provided, including following
Step:
S1: when the realistic model of vehicle is electric-only mode, detect that the demand torque of driver is greater than pure electric vehicle-series connection
Pattern switching calibration value, the desired pattern of vehicle become series model, demand torque the trampling by gas pedal of driver
For amount to judge, the pure electric vehicle of a vehicle-series model switching calibration value has been preset before factory, and specific value can be with
It inquires to obtain by a bivariate table；
S2: automobile start power generation all-in-one machine is controlled to start engine, the realistic model of vehicle is still pure electric vehicle mould at this time
Formula；
S3: detect that engine start is completed, the realistic model of vehicle is switched to series model from electric-only mode.At this time
The desired pattern of vehicle is also series model, and vehicle control unit controls engine does moment of torsion control, motor does speed closed loop control.
Preferably, before above-mentioned steps further include:
When vehicle is in upper high pressure dead ship condition, detect that the demand torque of driver is greater than 0 and is less than pure electric vehicle-series connection
Pattern switching calibration value, the desired pattern and realistic model of vehicle are electric-only mode.When vehicle is in upper high pressure dead ship condition,
The demand torque of its driver is 0, speed and engine speed is 0, clutch is discrete state, the desired pattern of vehicle and reality
Border mode is electric-only mode.
Preferably, detect that engine start is completed, the realistic model of vehicle is switched to series model from electric-only mode
The step of after further include:
S10: detect that the demand torque of driver is less than series connection-electric-only mode switching calibration value, the expectation mould of vehicle
Formula becomes electric-only mode, and series connection-electric-only mode switching calibration value is less than pure electric vehicle-series model and switches calibration value, series connection-
It is a preset value that electric-only mode, which switches calibration value,；
S11: control engine is shut down；
S12: detecting that engine has been shut down, and the realistic model of vehicle is switched to electric-only mode from series model.
Preferably, detect that engine start is completed, the realistic model of vehicle is switched to series model from electric-only mode
The step of after further include:
S4: detect that the demand torque of driver is greater than serial-parallel pattern switching calibration value, the desired pattern of vehicle becomes
For paralleling model, serial-parallel pattern switching calibration value is greater than pure electric vehicle-series model and switches calibration value, the series connection-of a vehicle
Paralleling model, which switches calibration value, have been preset before factory, and specific value can inquire to obtain by a bivariate table；
S5: control clutch starts to be closed, and the realistic model of vehicle is still series model at this time；
S6: detect that clutch closure is completed, the realistic model of vehicle is switched to paralleling model from series model, in parallel connection
Under mode, the driving torque of vehicle is provided jointly by driving motor torque, ISG Motor torque, engine torque, can be played whole
The maximum capacity of a hybrid power system.
Preferably, detect that clutch closure is completed, the realistic model of vehicle is switched to paralleling model from series model
After step further include:
S7: detect that the demand torque of driver is less than multiple-series pattern switching calibration value, the desired pattern of vehicle becomes
For series model, multiple-series pattern switching calibration value is less than serial-parallel pattern switching calibration value, and is greater than pure electric vehicle-string
Join pattern switching calibration value, multiple-series pattern switching calibration value is a preset value；
S8: control clutch is initially separated, and the realistic model of vehicle is still paralleling model at this time；
S9: detect that clutch separation is completed, the realistic model of vehicle is switched to series model from paralleling model.It is whole at this time
The desired pattern of vehicle is also series model, and vehicle control unit controls engine does moment of torsion control, motor does speed closed loop control.
Hybrid electric vehicle vehicle mode switch control method provided in this embodiment, there are three types of full-vehicle control modes,
For electric-only mode, series model and paralleling model, while the realistic model of vehicle and the concept of desired pattern are introduced, at certain
Under one battery SOC, the desired pattern of vehicle is determined by the expectation torque and speed of driver.The realistic model of vehicle is by starting
The state of machine revolving speed and clutch determines.The control method can be realized the smooth switching of each mode of vehicle, energy distribution rationally,
So as to guarantee good start-stop and driving while energy consumption is greatly reduced.
Embodiment 2
If Fig. 2-5 shows, a kind of hybrid electric vehicle vehicle mode switching method is present embodiments provided, wherein from pure electric vehicle
Mode is sequentially switched to series model, detailed process is as follows for paralleling model:
Before the T1 moment, vehicle is in upper high pressure dead ship condition, and the tread-on quantity of vehicle accelerator pedal is 0, the need of driver
Seeking torque is 0, and speed and engine speed are also 0, and clutch is discrete state.The desired pattern and realistic model of vehicle be
Pure electric vehicle.
At the T1 moment, driver steps on the throttle pedal to a lesser tread-on quantity, and the demand torque of driver is one smaller
Value, that is, be greater than 0 and be less than pure electric vehicle-series model and switch calibration value, and speed starts to gradually rise at this time, the desired pattern of vehicle and
Realistic model is still electric-only mode.Under electric-only mode, traveling driving force is provided by driving motor, meets the need of driver
Seek torque.
At the T2 moment, detect that the demand torque of driver is more than pure electric vehicle-series model switching calibration value, the phase of vehicle
Prestige mode becomes series model, and pure electric vehicle-series model switching calibration value is a preset value.At the moment, engine is by vapour
Vehicle starting-generating all-in-one machine (ISG motor) is started, and engine carries out oil spout igniting after reaching some revolving speed.But it is whole at this time
The realistic model of vehicle is still electric-only mode.
At the T3 moment, engine speed reaches certain revolving speed, and entire car controller judges that engine start is completed, the reality of vehicle
Border pattern switching is series model.
From the T3 moment to the T4 moment, driver maintains gas pedal constant, and the demand torque of driver does not also change substantially,
Speed remains unchanged after being stepped up to certain value.The state of clutch is still discrete state.At this point, the realistic model of vehicle and
Desired pattern is series model.Engine does moment of torsion control, motor turns for entire car controller (HCU) control under series model
Fast closed-loop control.
At the T4 moment, driver steps on the throttle pedal deeply, and the demand torque of driver is greater than serial-parallel pattern switching mark
The desired pattern of definite value, vehicle becomes paralleling model.Serial-parallel pattern switching calibration value is a preset value.At the moment
Clutch starts to be closed, and due to clutch at this time and not fully closed, the realistic model of vehicle is still series model.Start
The revolving speed of machine rises to actual expectation revolving speed, which is the input shaft rotating speed of gearbox, can pass through change
Fast case output revolving shaft is calculated multiplied by gearbox no-load voltage ratio.
At the T5 moment, clutch closure is completed, and becomes closed state, the realistic model of vehicle is switched to paralleling model.?
Under paralleling model, the driving torque of vehicle is provided jointly by driving motor torque, ISG Motor torque, engine torque, Ke Yifa
Wave the maximum capacity of entire hybrid power system.
After the T5 moment, driver maintains gas pedal constant, operator demand's being basically unchanged of torque, the expectation of vehicle
Mode and realistic model are paralleling model, and clutch is closed state, and vehicle works under paralleling model, and speed rises to one
Reach a stationary value after fixed number value, engine speed is consistent with transmission input shaft revolving speed.
Hybrid electric vehicle vehicle mode switch control method provided in this embodiment can be realized the smooth of each mode of vehicle
Rationally, which introduces the realistic model of vehicle and the concept of desired pattern, in some battery for switching, energy distribution
Under SOC, the desired pattern of vehicle is determined by the expectation torque and speed of driver.The realistic model of vehicle by engine speed and
The state of clutch determines.
Embodiment 3
As shown in fig. 6, present embodiments providing a kind of hybrid electric vehicle vehicle mode switching control system, comprising:
First demand torque detection module M1: when the realistic model of vehicle is electric-only mode, the need of driver are detected
Torque is asked to be greater than pure electric vehicle-series model switching calibration value, the desired pattern of vehicle becomes series model；
Engine start control module M2: control automobile start power generation all-in-one machine starts engine, at this time the reality of vehicle
Border mode is still electric-only mode；
First engine detection module M3: detecting that engine start is completed, and the realistic model of vehicle is from electric-only mode
It is switched to series model.
Preferably, before the first demand torque detection module further include:
Second demand torque detection module: when vehicle is in upper high pressure dead ship condition, the demand torque of driver is detected
Greater than 0 and it is less than pure electric vehicle-series model switching calibration value, the desired pattern and realistic model of vehicle are electric-only mode.
Preferably, further includes:
Third demand torque detection module M10: it when the desired pattern and realistic model of vehicle are series model, detects
The demand torque of driver is less than series connection-electric-only mode and switches calibration value, and the desired pattern of vehicle becomes electric-only mode；
Engine shuts down control module M11: control engine is shut down；
Second engine detection module M12: detect that engine has been shut down, the realistic model of vehicle is cut from series model
It is changed to electric-only mode.
Preferably, further includes:
4th demand torque detection module M4: it when the desired pattern and realistic model of vehicle are series model, detects
The demand torque of driver is greater than serial-parallel pattern switching calibration value, and the desired pattern of vehicle becomes paralleling model；
Clutch is closed control module M5: control clutch starts to be closed, and the realistic model of vehicle is still series connection mould at this time
Formula；
First clutch detection module M6: detect that clutch closure is completed, the realistic model of vehicle is cut from series model
It is changed to paralleling model.
Preferably, further includes:
5th demand torque detection module M7: when the desired pattern of vehicle and realistic model are paralleling model, detection
Demand torque to driver is less than multiple-series pattern switching calibration value, and the desired pattern of vehicle becomes series model；
Clutch separation control module M8: control clutch is initially separated, and the realistic model of vehicle is still and gang mould at this time
Formula；
Second clutch detection module M9: detect that clutch separation is completed, the realistic model of vehicle is cut from paralleling model
It is changed to series model.
A kind of hybrid electric vehicle vehicle mode switching control system provided in this embodiment, full-vehicle control mode only have three
Kind, it is electric-only mode, series model and paralleling model, while introducing the desired pattern of vehicle and the concept of realistic model.
Can control logic simply clearly on the basis of, realize timely, reasonable, the smooth switching of the various modes of vehicle, Yi Jishi
The reasonable distribution of existing electric energy and fuel energy, to guarantee good performance of start and stop and driving while energy consumption is greatly reduced
Property.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of hybrid electric vehicle vehicle mode switch control method, it is characterised in that the following steps are included:
When the realistic model of vehicle is electric-only mode, detect that the demand torque of driver is greater than pure electric vehicle-series model and cuts
Dehorn definite value, the desired pattern of vehicle become series model, the tread-on quantity that the demand torque of the driver passes through gas pedal
To judge；Under some battery SOC, the desired pattern of vehicle is determined by the demand torque and speed of driver, the reality of vehicle
Border mode is determined by the state of engine speed and clutch；Control automobile start power generation all-in-one machine to start engine, at this time
The realistic model of vehicle is still electric-only mode；Detect that the engine start is completed, the realistic model of vehicle is from pure electric vehicle
Pattern switching is series model；
Detect that the demand torque of the driver is greater than serial-parallel pattern switching calibration value, the desired pattern of vehicle becomes
Paralleling model, the serial-parallel pattern switching calibration value are greater than the pure electric vehicle-series model and switch calibration value；Control from
Clutch starts to be closed, and the realistic model of vehicle is still series model at this time；Detect that clutch closure is completed, the practical mould of vehicle
Formula is switched to paralleling model from series model.
2. hybrid electric vehicle vehicle mode switch control method as described in claim 1, which is characterized in that the reality of the vehicle
When border mode is electric-only mode, detect that the demand torque of driver is greater than pure electric vehicle-series model switching calibration value, vehicle
Desired pattern the step of becoming series model before further include:
When vehicle is in upper high pressure dead ship condition, detect that the demand torque of the driver is greater than 0 and is less than the pure electric vehicle-
Series model switches calibration value, and the desired pattern and realistic model of vehicle are electric-only mode.
3. hybrid electric vehicle vehicle mode switch control method as claimed in claim 2, which is characterized in that the vehicle is in
When upper high pressure dead ship condition, the demand torque of driver is 0, speed and engine speed are 0, clutch be discrete state,
The desired pattern and realistic model of vehicle are electric-only mode.
4. hybrid electric vehicle vehicle mode switch control method as described in claim 1, which is characterized in that described to detect institute
Engine start completion is stated, after the step of realistic model of vehicle is switched to series model from electric-only mode further include:
Detect that the demand torque of the driver is less than series connection-electric-only mode switching calibration value, the desired pattern of vehicle becomes
For electric-only mode, the series connection-electric-only mode switching calibration value is less than the pure electric vehicle-series model and switches calibration value；
The engine is controlled to shut down；
Detect that the engine has been shut down, the realistic model of vehicle is switched to electric-only mode from series model.
5. hybrid electric vehicle vehicle mode switch control method as described in claim 1, which is characterized in that it is described detect from
After the step of clutch closure is completed, and the realistic model of vehicle is switched to paralleling model from series model further include:
Detect that the demand torque of the driver is less than multiple-series pattern switching calibration value, the desired pattern of vehicle becomes
Series model, the multiple-series pattern switching calibration value is less than the serial-parallel pattern switching calibration value, and is greater than institute
State pure electric vehicle-series model switching calibration value；
Control clutch is initially separated, and the realistic model of vehicle is still paralleling model at this time；
Detect that clutch separation is completed, the realistic model of vehicle is switched to series model from paralleling model.
6. hybrid electric vehicle vehicle mode switch control method according to any one of claims 1 to 5, which is characterized in that whole
When the desired pattern and realistic model of vehicle are series model, engine described in vehicle control unit controls does moment of torsion control, motor
Do speed closed loop control.
7. a kind of hybrid electric vehicle vehicle mode switching control system, characterized by comprising:
First demand torque detection module: when the realistic model of vehicle is electric-only mode, the demand torque of driver is detected
Switch calibration value greater than pure electric vehicle-series model, the desired pattern of vehicle becomes series model；It is whole under some battery SOC
The desired pattern of vehicle determines by the demand torque and speed of driver, and the realistic model of vehicle is by engine speed and clutch
State determines；
Engine start control module: control automobile start power generation all-in-one machine starts engine, at this time the realistic model of vehicle
It is still electric-only mode；
First engine detection module: detect that the engine start is completed, the realistic model of vehicle is cut from electric-only mode
It is changed to series model；
4th demand torque detection module: when the desired pattern and realistic model of vehicle are series model, described drive is detected
The demand torque for the person of sailing is greater than serial-parallel pattern switching calibration value, and the desired pattern of vehicle becomes paralleling model；
Clutch is closed control module: control clutch starts to be closed, and the realistic model of vehicle is still series model at this time；
First clutch detection module: detect that clutch closure is completed, the realistic model of vehicle is switched to simultaneously from series model
Gang mould formula.
8. a kind of hybrid electric vehicle vehicle mode switching control system as claimed in claim 7, it is characterised in that described first
Before demand torque detection module further include:
Second demand torque detection module: when vehicle is in upper high pressure dead ship condition, the demand torque of the driver is detected
Greater than 0 and it is less than the pure electric vehicle-series model switching calibration value, the desired pattern and realistic model of vehicle are pure electric vehicle mould
Formula.
9. a kind of hybrid electric vehicle vehicle mode switching control system as claimed in claim 7 or 8, which is characterized in that also wrap
It includes:
Third demand torque detection module: when the desired pattern and realistic model of vehicle are series model, described drive is detected
The demand torque for the person of sailing is less than series connection-electric-only mode and switches calibration value, and the desired pattern of vehicle becomes electric-only mode；
Engine shuts down control module: controlling the engine and shuts down；
Second engine detection module: detecting that the engine has been shut down, and the realistic model of vehicle switches from series model
For electric-only mode.
10. a kind of hybrid electric vehicle vehicle mode switching control system as claimed in claim 9, which is characterized in that further include:
5th demand torque detection module: it when the desired pattern of vehicle and realistic model are paralleling model, detects described
The demand torque of driver is less than multiple-series pattern switching calibration value, and the desired pattern of vehicle becomes series model；
Clutch separation control module: control clutch is initially separated, and the realistic model of vehicle is still paralleling model at this time；
Second clutch detection module: detect that clutch separation is completed, the realistic model of vehicle is switched to string from paralleling model
Gang mould formula.
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| CN113104020A (en) * | 2019-12-24 | 2021-07-13 | 北京宝沃汽车股份有限公司 | Hybrid electric vehicle and power control mode decision method and device thereof |
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