CN106143467B - The control method and device of hybrid vehicle - Google Patents
The control method and device of hybrid vehicle Download PDFInfo
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- CN106143467B CN106143467B CN201510161997.3A CN201510161997A CN106143467B CN 106143467 B CN106143467 B CN 106143467B CN 201510161997 A CN201510161997 A CN 201510161997A CN 106143467 B CN106143467 B CN 106143467B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention discloses a kind of control methods of hybrid vehicle, including：Control module receives SOC target points set by user, and SOC target points set by user are sent to electric machine controller when judging that hybrid vehicle is currently at hybrid mode and engine has been started up；Electric machine controller obtains the current SOC value of power battery；Electric machine controller selects corresponding control strategy according to SOC target points set by user and current SOC value；And in the case where meeting vehicle and driving required power, charge and discharge control is carried out to hybrid vehicle according to the control strategy of selection.This method realizes that driver carries out target control to the power battery electricity of hybrid vehicle by the set-up function of introducing SOC target points.The invention also discloses a kind of control devices of hybrid vehicle.
Description
Technical field
The present invention relates to Development of HEV Technology field more particularly to the control methods and dress of a kind of hybrid vehicle
It sets.
Background technology
Currently, hybrid vehicle for power battery electricity control method be generally by vehicle control system from
Identification is to maintain the electricity of power battery.Specifically, when power battery electricity is less than a threshold value, hybrid vehicle starts
Engine controls vehicle and cannot carry out electric-only mode driving with for power battery charging；When power battery electricity is because of feedback
Or when generating electricity higher than a threshold value, the controllable engine misses started by power generation, and start and stop are responded again.
As can be seen that in above-mentioned whole process, cannot be adjusted by driver's pro-active intervention to maintain the electricity of power battery
Amount.For example, certain hybrid electric vehicle has first mode and second mode, when the hybrid vehicle is first mode,
The hybrid vehicle can maintain the electricity in high tension battery constant as possible, even if can pass through if consumption under steam
Engine and energy regenerating charge for battery, and this pattern only uses seldom a part of electric energy；When the hybrid vehicle is
When second mode, which can be that high tension battery charges as possible, for the longer pure motor driving of lower a distance
It prepares.
But the height that the model selection of above-mentioned hybrid electric vehicle, power battery electricity maintain is by vehicle itself
It determines, although the part for embodying driver it is expected, is not given to the target of driver definitely.
Invention content
The purpose of the present invention is intended to solve above-mentioned one of technical problem at least to a certain extent.
For this purpose, first purpose of the present invention is to propose a kind of control method of hybrid vehicle.This method passes through
The set-up function of SOC target points is introduced, realizes that driver carries out target control to the power battery electricity of hybrid vehicle.
Second object of the present invention is to propose a kind of control device of hybrid vehicle.
To achieve the goals above, the control method of the hybrid vehicle of first aspect present invention embodiment, including：Control
Molding block judges whether the current operating mode of hybrid vehicle is in hybrid mode；The control module is judging
When stating the current operating mode of hybrid vehicle and being in the hybrid mode, the hybrid vehicle is further judged
In engine whether start；The control module is received and is used in the engine start in judging the hybrid vehicle
The SOC target points of family setting, and the SOC target points set by user are sent to electric machine controller；The electric machine controller
Obtain the current SOC value of power battery；The electric machine controller is according to SOC target points set by user and described current
SOC value selects corresponding control strategy；And it is automatically controlled to hybrid vehicle progress charge and discharge according to the control strategy of selection
System.
The control method of hybrid vehicle according to the ... of the embodiment of the present invention is worked as by control module in hybrid vehicle
It is preceding to receive SOC target points set by user when being in hybrid mode and engine start, and by SOC mesh set by user
Punctuate is sent to electric machine controller, and electric machine controller obtains the current SOC value of power battery, and according to SOC mesh set by user
Punctuate and current SOC value select corresponding control strategy, and are filled to hybrid vehicle according to the control strategy of selection
Control of discharge realizes power battery electricity of the driver to hybrid vehicle that is, by introducing the set-up function of SOC target points
Carry out target control.
To achieve the goals above, the control device of the hybrid vehicle of second aspect of the present invention embodiment, including：Control
Molding block and electric machine controller, wherein the control module, for judging whether the current operating mode of hybrid vehicle is located
In hybrid mode, and when judging that the current operating mode of the hybrid vehicle is in the hybrid mode,
Further judge whether the engine in the hybrid vehicle starts, and starts in judging the hybrid vehicle
When machine starts, SOC target points set by user are received, and the SOC target points set by user are sent to motor control
Device；The electric machine controller, the current SOC value for obtaining power battery, and according to the SOC target points set by user and
The current SOC value selects corresponding control strategy, and is carried out to the hybrid vehicle according to the control strategy of selection
Charge and discharge control.
The control device of hybrid vehicle according to the ... of the embodiment of the present invention is worked as by control module in hybrid vehicle
It is preceding to receive SOC target points set by user when being in hybrid mode and engine start, and by SOC mesh set by user
Punctuate is sent to electric machine controller, and electric machine controller obtains the current SOC value of power battery, and according to SOC mesh set by user
Punctuate and current SOC value select corresponding control strategy, and are filled to hybrid vehicle according to the control strategy of selection
Control of discharge realizes power battery electricity of the driver to hybrid vehicle that is, by introducing the set-up function of SOC target points
Carry out target control.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is the flow chart of the control method of hybrid vehicle according to an embodiment of the invention；
Fig. 2 is that the SOC target points that the control method of hybrid vehicle according to the ... of the embodiment of the present invention provides to the user are set
The schematic diagram in demarcation face；
Fig. 3 (a) is the schematic diagram of the energy trend in hybrid vehicle when SOC target points are less than current SOC value；
Fig. 3 (b) is the schematic diagram of the energy trend in hybrid vehicle when SOC target points are more than current SOC value；
Fig. 4 is the interactive examples figure of the control method of hybrid vehicle according to an embodiment of the invention；
Fig. 5 is the exemplary plot of the control method of hybrid vehicle according to an embodiment of the invention；
Fig. 6 is the structural schematic diagram of the control device of hybrid vehicle according to an embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the control method and device of hybrid vehicle according to the ... of the embodiment of the present invention are described.
Fig. 1 is the flow chart of the control method of hybrid vehicle according to an embodiment of the invention.As shown in Figure 1,
The control method of the hybrid vehicle may include：
S101, control module judge whether the current operating mode of hybrid vehicle is in hybrid mode.
Wherein, in an embodiment of the present invention, hybrid mode (i.e. HEV mode) is different from EV patterns (i.e. motor list
Only drive mode), which, which can be regarded as engine and motor, can simultaneously participate in the pattern of vehicle driving.
S102, control module are judging that the current operating mode of the hybrid vehicle is in the hybrid mode
When, further judge whether the engine in the hybrid vehicle starts.
It should be noted that the control method of the hybrid vehicle of the embodiment of the present invention is according to SOC set by user
Under the premise of target point and current SOC value carry out corresponding control strategy to hybrid vehicle, hybrid power vapour need to be first determined
Vehicle is currently at hybrid mode, and engine has been started up, and following step is executed under the premise of meeting this condition
S103-S106。
S103, control module receive SOC set by user (State of charge, power battery charging capacity with it is specified
The ratio of capacity) target point, and SOC target points set by user are sent to electric machine controller.
For example, it is assumed that the control method of the hybrid vehicle of the embodiment of the present invention provides SOC target points to the user
Set-up function, as shown in Fig. 2, for hybrid vehicle of the present invention control method provide to the user SOC target points setting circle
The schematic diagram in face, wherein the SOC target points, which set interface, can be located in the multimedia screen in vehicle, and user can be by manual
The slider bar that interface is set in sliding such as Fig. 2, to set SOC target points.Control module in using control module as multimedia is
Example, when detecting that user sets SOC target points, multimedia control module can receive SOC target points set by user, and can incite somebody to action
The SOC target points set by user are sent to electric machine controller.Meanwhile can also to remember this set by user for multimedia control module
SOC target points change this target still to give tacit consent to the SOC target points of the setting when powering on next time until user manually sets
Point.Wherein, in an embodiment of the present invention, the setting range of SOC target points can be put pre- centered on by default SOC target points
Within the scope of if.For example, as shown in Fig. 2, SOC target points can set ranging from 15%~70%, i.e. user can be default at this
SOC target points are set in range (15%~70%).
S104, electric machine controller obtain the current SOC value of power battery.
Specifically, electric machine controller can obtain the current power that power battery manager is sent in real time in hybrid vehicle
The actual soc-value of battery, the i.e. current SOC value of power battery.
S105, electric machine controller select corresponding control strategy according to SOC target points set by user and current SOC value.
Specifically, in an embodiment of the present invention, electric machine controller is according to SOC target points set by user and currently
SOC value selects the specific implementation of corresponding control strategy can be for：If SOC target points are less than current SOC value, select to lead
Dynamic electric discharge strategy；If SOC target points are equal to current SOC value, battery capacity is selected to maintain strategy；If SOC target points are big
In current SOC value, then driving power generation strategies are selected.
More specifically, SOC target points set by user can be compared with current SOC value for electric machine controller, and according to
Comparison result selects corresponding control strategy.For example, when SOC target points are less than current SOC value, and vehicle is in hybrid power
When system drive, electric machine controller can take the initiative electric discharge strategy, allow as much as possible power motor participate in output power, reduce hair
Motivation oil consumption, the energy trend in hybrid vehicle can be as shown in Fig. 3 (a) at this time, and electric machine controller preset can discharge
Energy is driven by inverter 2 with output torque, at this time power battery 1 and is given motor M by power control motor M workmanships, i.e. motor M
Engine E is assisted to drive driving wheel 3 to run.
For another example, when SOC target points are equal to current SOC value, hybrid vehicle can maintain the electricity of power battery as possible
It is constant, even if it is power battery charging that can recycle electricity if having part electric quantity consumption in the process of moving by energy feedback, with
Keep the electricity that hybrid vehicle maintains power battery in the process of moving constant, it is mainly defeated to driving wheel by engine at this time
Go out torque, it will be understood that the battery capacity maintains strategy suitable for the maintenance pattern of vehicle.
For another example, when SOC target points are more than current SOC value, hybrid vehicle can be by way of driving a vehicle and generating electricity
Power battery charges, and keeps electricity close to SOC target points set by user as possible, and the energy trend in hybrid vehicle can at this time
As shown in Fig. 3 (b), under conditions of engine meets and drives, high power is operated in so that engine E by controlling engine E
A part of torque export and give motor M, motor M is that power battery 1 charges by workmanship.That is, hybrid power system
System is during driving, and under the premise of ensureing that vehicle drives demand power, control engine operates in efficient region so that hair
A part of torque of motivation is exported to motor so that motor is power battery charging, i.e., at this time engine respectively to driving wheel and
Motor output torque, motor receive and the mechanical energy are converted to electric energy after the output torque, can with for power battery charging
To understand, which is suitable for the economic model of vehicle.
S106, in the case where meeting vehicle and driving required power, according to the control strategy of selection to hybrid vehicle into
Row charge and discharge control.
Specifically, in an embodiment of the present invention, when the control strategy that electric machine controller selects is active discharge strategy
When, electric machine controller can first judge whether motor can participate in driving；If it is determined that motor can participate in driving, then further sentence
Whether disconnected power battery manager allows power battery to discharge；If power battery manager allows power battery to discharge, sentence
Whether disconnected vehicle driving demand power is less than or equal to the default driving power of motor；If vehicle driving demand power be less than or
Equal to the default driving power of motor, then controls motor and be operated alone；If vehicle drives demand power to be more than the default of motor
Driving power then further judges whether engine can individually meet driving；If it is, control motor is with default driving work(
Rate is exported, remaining driving demand power is provided by engine；If it is not, then control engine is exported with maximum capacity,
Remaining driving demand power is provided by motor.Wherein, in an embodiment of the present invention, above-mentioned default rated power can be engine
What the actual conditions such as matching and simulation road conditions matching obtained.That is, if power battery electricity in higher state, is as possible
Fuel consumption is reduced, under HEV mode (i.e. engine cooperates with motor the pattern of offer drive force vehicle), motor controls
Device will distribute more torques and be exported to motor, and to consume the electric energy of power battery, motor and engine are jointly to driving wheel at this time
Output torque, to help the traveling of vehicle, it will be understood that the active discharge strategy is suitable for the motor pattern of vehicle.
It should be noted that when electric machine controller enters active discharge strategy, electric system first self-test and can judge electricity
Machine can participate in driving, that is, whether normal detect each module temperature：Electric machine controller needs to acquire motor temperature, water temperature, IGBT
(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) temperature, IPM temperature, when each module temperature
When spending high, then motor is not allowed to work；Meanwhile it also needing it is judged whether or not collision alarm：When vehicle severe crash, it is
It ensures personal safety, drive system need to be immediately closed off.When electric machine controller judges that each module temperature is normal, and vehicle collisionless is believed
Number when, it may be determined that motor can participate in vehicle driving.
When the control strategy that electric machine controller selects maintains strategy for battery capacity, electric machine controller can first judge to start
Whether machine, which can individually meet vehicle driving, requires, if it is, control motor stops output and power battery stops electric discharge, such as
Fruit is no, then controls motor and participate in output, and further judge whether the difference between current SOC value and SOC target points belongs to pre-
If in range, if it is, electricity is recycled in control motor power feedback, if it is not, then judging that it is current that SOC target points are more than
When SOC value, control hybrid vehicle enters corresponding driving power generation strategies, or is judging SOC target points less than current SOC
When value, control hybrid vehicle enters corresponding active discharge strategy.That is, entering battery in electric machine controller selection
When electricity maintains strategy, electric machine controller can first judge whether engine can individually meet vehicle driving and require, wherein engine
Vehicle driving cannot individually be met to require can be regarded as：According to special outside current gearbox-gear, engine speed and engine
Linearity curve, even if engine can not reach vehicle driving power demand by maximum power output, driving refers to motor control here
Device processed judges the conditions such as current speed, gas pedal depth, the gradient, determines the demand power of vehicle current driving.Judging
When engine can individually meet vehicle driving, then motor does not export and battery does not discharge；It cannot individually meet vehicle in engine
When driving, then the difference of current SOC value and SOC target points is judged not within a preset range (between such as positive and negative 1%), if,
Then electricity is recycled in motor power feedback, so that hybrid vehicle maintains the electricity of power battery constant in the process of moving, if
Do not exist, then judges the size of the difference of current SOC value and SOC target points, and select into driving power generation strategies according to judging result
Or active discharge strategy.
When the control strategy that electric machine controller selects for driving power generation strategies when, electric machine controller can first judge that engine is
It is no individually to meet vehicle driving requirement, if it is not, then control motor participates in output, if it is, control motor stopping is defeated
Go out and power battery stops electric discharge, and further judge whether the output torque of engine is less than preset value, if so, obtaining
Difference between SOC target points and current SOC value can determine generated output according to difference, and be controlled according to generated output later
The output of engine is so that motor power generation, i.e., charge to power battery.Specifically, in an embodiment of the present invention,
Generated output is determined according to difference, and the output of engine is controlled so that motor generates electricity, i.e., to power electric according to generated output
The specific implementation process that pond is charged can be：When difference is greater than or equal to first threshold, determine that generated output is the first work(
Rate value, and the torque of engine is controlled so that motor generates electricity with the first performance number so that current SOC value is equal to SOC target points；
When difference is less than first threshold and is greater than or equal to second threshold, determine that generated output is the second performance number, and with the second work(
The torque of modulus control engine is so that motor generates electricity so that current SOC value is equal to SOC target points, wherein the first performance number
More than the second performance number；When difference is less than second threshold and is greater than or equal to third threshold value, determine that generated output is third work(
Rate value, and the torque of engine is controlled so that motor generates electricity with third performance number so that current SOC value is equal to SOC target points,
Wherein, the second performance number is more than third performance number；When difference is equal to four threshold values, determine that generated output is the 4th performance number,
And the torque of engine is controlled so that motor generates electricity with the 4th performance number so that current SOC value is equal to SOC target points, wherein
Third threshold value is more than the 4th threshold value, and third performance number is more than the 4th performance number.In addition, in an embodiment of the present invention, the first threshold
Value, second threshold, third threshold value and the 4th threshold value are successively decreased successively.
For example, when the difference of SOC target points and current SOC value is greater than or equal to A% (i.e. first threshold), power generation is determined
Power maximum can be a kilowatts (i.e. the first performance number), i.e. engine drives demand power under conditions of meeting driving, in vehicle
On the basis of in overabsorption X power to engine, that is to say, that a kilowatts of power should be vehicle driving demand power+X, and with this
The torque of a kilowatts of control engine of power is so that motor generates electricity so that current SOC value is equal to SOC target points；When SOC targets
When the difference of point and current SOC value is less than A% and is greater than or equal to B% (second threshold), determine that generated output maximum can be b thousand
Watt, i.e. engine is started on the basis of vehicle drives demand power in overabsorption Y power under conditions of meeting driving
Machine, that is to say, that b kilowatts of power should be vehicle driving demand power+Y；When SOC target points and the difference of current SOC value are less than
B% and more than or equal to C% (i.e. third threshold value) when, determine generated output maximum can be c kilowatts, i.e., engine meet driving
Under conditions of, in overabsorption Z power to engine on the basis of vehicle drives demand power, that is to say, that c kilowatts of power is answered
Demand power+Z is driven for vehicle；When the difference of SOC target points and current SOC value is equal to 0% (i.e. the 4th threshold value), hair is determined
Electrical power maximum can be 0 kilowatt, that is, exit driving generating function, wherein a ＞ b ＞ c ＞ 0, X>Y>Z>0.
In order to enable those skilled in the art can clearly understand the present invention, below in conjunction with Fig. 4 and Fig. 5 couples
The present invention is further described.
For example, it is assumed that hybrid vehicle of the present invention has provided the setting interface of SOC target points, Yong Huke to the user
By " traveling setting " option of the multimedia main interface in hybrid vehicle, interface, Yong Huke are set into SOC target points
The setting (S01) of SOC target points is carried out by the setting interface.When multimedia control module detects that user sets SOC mesh
After punctuate, multimedia control module can send SOC target points (S02) set by user to electric machine controller, meanwhile, multimedia
Control module remembers the SOC target points (S03) set by user.At this point, power battery manager can be sent to electric machine controller
The current actual soc-value of power battery (S04).Electric machine controller is receiving SOC target points set by user and current reality
The sum of border SOC value can determine whether speed and the working condition (S05) of engine, while judge SOC target points and currently practical SOC
Value, compares the size of the two, and takes different control strategy (S06) according to comparison result.
Later, charge and discharge control can be carried out to hybrid vehicle according to the control strategy taken：According to the control taken
Before system strategy carries out charge and discharge control to hybrid vehicle, first, as shown in figure 5, whether need to judge hybrid vehicle
In hybrid mode (i.e. HEV mode) (S501), if so, further judge whether engine starts (S502), if so,
Then further judge whether target SOC set by user (i.e. SOC target points) is less than currently practical SOC value (S503).If judging
Target SOC (i.e. SOC target points) is less than currently practical SOC value, then enters active discharge strategy (S504), at this point, electric system
Self-test, and judge whether motor can participate in driving (S505), i.e. whether normal electric system can first detect each module temperature：Electricity
Machine controller needs to acquire motor temperature, water temperature, IGBT (Insulated Gate Bipolar Transistor, insulated gate pair
Bipolar transistor) temperature, IPM temperature then do not allow motor to work when each module temperature is excessively high；Meanwhile it also needing to judge current
Whether collision alarm is had：When vehicle severe crash, to ensure personal safety, drive system need to be immediately closed off.When motor controls
Device judges that each module temperature is normal, and when vehicle collisionless signal, it may be determined that motor can participate in vehicle driving.If powering off function
It is enough to participate in driving, then further judge whether power battery manager (BMS) allows power battery to discharge (S506), i.e. power electric
Pool manager can first judge vehicle high-pressure modular (such as battery manager, high-tension distribution box, service switch, drive motor controller,
DC (i.e. transducer voltage) assembly etc.) whether it has been successfully connected, if it is not, not allowing then to discharge, if so, also needing to pass through SOC
Judge whether power battery has discharge capability and drive demand to meet motor with battery temperature, if SOC or battery temperature mistake
It is high, too low, then do not allow to discharge.When judging that power battery manager allows power battery to discharge, also need further to judge whole
Vehicle drives whether demand power is less than or equal to default rated power M (S507), which can pass through according to engine
Depending on Ji operation area, it is possible to understand that when engine driving power is less than the power, Fuel Economy is poor.When sentencing
When disconnected vehicle driving demand is more than default rated power M, it can further judge whether engine can individually meet driving
(S508), if so, motor provides M kilowatts of driving power, remaining driving power provides (S509) by engine.Wherein, when whole
When vehicle drives demand power to be less than or equal to default rated power M, motor can be operated alone, and engine is in idling shape at this time
State is not involved in driving (S510).When judging that engine individually cannot meet driving, engine can be exported by maximum capacity,
Remaining driving demand power is provided by motor, if vehicle is in anxious accelerating mode (such as full throttle), engine and motor are by maximum
Ability exports (S511).It should be noted that can individually meet driving for engine, motor provides M kilowatts of driving power,
The relationship that remaining driving power is provided by engine can be regarded as：If vehicle demand power (x) has been over the maximum of engine
Fan-out capability (y) then motor need to provide the power of w=x-y, and is no longer specified M kw.Active discharge strategy is managed
Solution, it can be understood as first judge power of motor, then judge that can engine power meet vehicle driving demand power.
If it is determined that target SOC is equal to currently practical SOC value (S512), then enters electricity and maintain tactful (S513), at this time
Judge whether engine can individually meet vehicle driving (S514), if so, motor is kept not export, and battery does not discharge
(S515), if it is not, then controlling motor participates in output (S516), in this process, maintain the electricity of power battery constant as possible.
If it is determined that target SOC is more than currently practical SOC value (S517), then enter driving power generation strategies (S518), at this point,
It need to first judge whether engine can individually meet driving (S519), if it is not, then controlling motor participates in output (S520), if so,
Then motor is kept not export, and battery does not discharge (S521).It needs to judge whether engine output torque is less than K Nm at this time
(S522), it will be understood that judge whether the output torque of engine is small according to engine test bench characteristic curve and engine noise
In K Nm, when engine output torque is more than K Nm, does not allow engine to provide additional power and carry out driving power generation.If sentencing
Disconnected engine output torque is less than K Nm, and target SOC and the difference of currently practical SOC value are greater than or equal to a%, then in engine
Under conditions of meeting driving, multi output X KW are for power generation (S523) of driving a vehicle；If target SOC and the difference of currently practical SOC value are big
In or equal to b%, then under conditions of engine meets and drives, multi output Y KW generate electricity (S524) for driving a vehicle；If target SOC
It is greater than or equal to c% with the difference of currently practical SOC value, then under conditions of engine meets and drives, multi output Z KW are for going
Vehicle generates electricity (S525)；If target SOC is equal to 0 with currently practical SOC value, driving generating function (S526) is exited, wherein a
＞ b ＞ c ＞ 0, X ＞ Y ＞ Z ＞ 0.To make the currently practical SOC value of power battery as possible close to SOC mesh set by user
Punctuate.
In conclusion the present invention is mainly based upon hybrid electric vehicle power motor, power battery and engine three's
In the process of moving, electric machine controller monitors the SOC that user is set by multimedia for energy-saving control method, i.e. hybrid vehicle
Target point, vehicle power battery electricity, power battery charge-discharge electric power, the work economic zone of engine, vehicle demand torque,
The working conditions such as speed are distributed by adjusting driving generating function, motor and engine output torque, power battery electricity are enabled to lean on
Nearly SOC target points.
The control method of hybrid vehicle of the invention increases while taking into account hybrid power system economy as a result,
Strong interaction between hybrid vehicle and driver, i.e. driver can adjust SOC target points by multimedia, enable power
Battery capacity is maintained at the desired level of driver, meets the needs of driver is to power battery electricity.
The control method of hybrid vehicle according to the ... of the embodiment of the present invention is worked as by control module in hybrid vehicle
It is preceding to receive SOC target points set by user when being in hybrid mode and engine start, and by SOC mesh set by user
Punctuate is sent to electric machine controller, and electric machine controller obtains the current SOC value of power battery, and according to SOC mesh set by user
Punctuate and current SOC value select corresponding control strategy, and in the case where meeting vehicle and driving required power, according to selection
Control strategy carries out charge and discharge control to hybrid vehicle, i.e., by introducing the set-up function of SOC target points, realizes driver
Target control is carried out to the power battery electricity of hybrid vehicle.
In order to realize above-described embodiment, the invention also provides a kind of control devices of hybrid vehicle.
Fig. 6 is the structural schematic diagram of the control device of hybrid vehicle according to an embodiment of the invention.Such as Fig. 6 institutes
Show, the control device of the hybrid vehicle includes control module 10 and electric machine controller 20.
Specifically, control module 10 can be used for judging whether the current operating mode of hybrid vehicle is in hybrid power
Pattern, and when judging that the current operating mode of hybrid vehicle is in hybrid mode, further judge hybrid power
Whether the engine in automobile starts, and in the engine start in judging hybrid vehicle, receives SOC set by user
Target point, and SOC target points set by user are sent to electric machine controller 20.Wherein, in an embodiment of the present invention, it mixes
It closes dynamic mode (i.e. HEV mode) and is different from EV patterns (i.e. pattern is operated alone in motor), which can be regarded as
Engine and motor can simultaneously participate in the pattern of vehicle driving.
For example, it is assumed that the control device of the hybrid vehicle of the embodiment of the present invention provides SOC target points to the user
Set-up function, as shown in Fig. 2, for hybrid vehicle of the present invention control device provide to the user SOC target points setting circle
The schematic diagram in face, user can be by sliding the slider bar as set interface in Fig. 2, to set SOC target points manually.When control mould
When block 10 detects that user sets SOC target points, control module 10 can receive SOC target points set by user, and can be by the use
The SOC target points of family setting are sent to electric machine controller 20.Meanwhile control module 10 can also remember the SOC mesh set by user
Punctuate changes this target point still to give tacit consent to the SOC target points of the setting when powering on next time until user manually sets.Its
In, in an embodiment of the present invention, the default model that the setting ranges of SOC target points can be put centered on to preset SOC target points
Within enclosing.For example, as shown in Fig. 2, SOC target points can set ranging from 15%~70%, i.e. user can be in the preset range
SOC target points are set in (15%~70%).
Electric machine controller 20 can be used for obtaining the current SOC value of power battery, and according to SOC target points set by user and
Current SOC value selects corresponding control strategy, and in the case where meeting vehicle and driving required power, according to the control plan of selection
Charge and discharge control slightly is carried out to hybrid vehicle.
Specifically, in an embodiment of the present invention, electric machine controller 20 is according to SOC target points set by user and currently
SOC value selects the specific implementation process of corresponding control strategy can be for：When SOC target points are less than current SOC value, selection is actively
Electric discharge strategy；When SOC target points are equal to current SOC value, battery capacity is selected to maintain strategy；It is more than in SOC target points current
When SOC value, selection driving power generation strategies.
More specifically, SOC target points set by user can be compared with current SOC value for electric machine controller 20, and root
Corresponding control strategy is selected according to comparison result.For example, when SOC target points are less than current SOC value, and vehicle is in mixing and moves
Force system drive when, electric machine controller 20 can take the initiative electric discharge strategy, allow as much as possible power motor participate in output power, drop
Low engine consumption, the energy trend in hybrid vehicle can be as shown in Fig. 3 (a) at this time, and electric machine controller can be preset
Energy is driven by inverter 2 with output torque, at this time power battery 1 and is given motor M by discharge power control motor M workmanships, i.e.,
Motor M assists engine E to drive driving wheel 3 to run.
For another example, when SOC target points are equal to current SOC value, hybrid vehicle can maintain the electricity of power battery as possible
It is constant, even if it is power battery charging that can recycle electricity if having part electric quantity consumption in the process of moving by energy feedback, with
Keep the electricity that hybrid vehicle maintains power battery in the process of moving constant, at this time mainly by engine to driving wheel
Output torque, it will be understood that the battery capacity maintains strategy suitable for the maintenance pattern of vehicle.
For another example, when SOC target points are more than current SOC value, hybrid vehicle can be by way of driving a vehicle and generating electricity
Power battery charges, and keeps electricity close to SOC target points set by user as possible, and the energy trend in hybrid vehicle can at this time
As shown in Fig. 3 (b), under conditions of engine meets and drives, high power is operated in so that engine E by controlling engine E
A part of torque export and give motor M, motor M is that power battery 1 charges by workmanship.That is, hybrid power system
System is during driving, and under the premise of ensureing that vehicle drives demand power, control engine operates in efficient region so that hair
A part of torque of motivation is exported to motor so that motor is power battery charging, i.e., at this time engine respectively to driving wheel and
Motor output torque, motor receive and the mechanical energy are converted to electric energy after the output torque, can with for power battery charging
To understand, which is suitable for the economic model of vehicle.
Specifically, in an embodiment of the present invention, electric machine controller 20 can be in the following manner to realize active discharge
Strategy：Electric machine controller 20 can first judge whether motor can participate in driving；If it is determined that motor can participate in driving, then into one
Step judges whether power battery manager allows power battery to discharge；If power battery manager allows power battery to discharge,
Then judge whether vehicle driving demand power is less than or equal to the default driving power of motor；If vehicle drives demand power small
In or equal to motor default driving power, then control motor and be operated alone；If vehicle drives demand power to be more than motor
Default driving power, then further judge whether engine can individually meet driving；If it is, control motor is driven with default
Dynamic power is exported, remaining driving demand power is provided by engine；If it is not, then control engine is defeated with maximum capacity
Go out, remaining driving demand power is provided by motor.Wherein, in an embodiment of the present invention, above-mentioned default rated power can be
What the actual conditions such as Engine Matching and simulation road conditions matching obtained.That is, if power battery electricity is in higher state,
To reduce fuel consumption as possible, under HEV mode (i.e. engine cooperates with motor the pattern of drive force vehicle of providing), electricity
Machine controller 20 will distribute more torques and be exported to motor, and to consume the electric energy of power battery, motor and engine are common at this time
To driving wheel output torque, to help the traveling of vehicle, it will be understood that the active discharge strategy is suitable for the movement mould of vehicle
Formula.
It should be noted that when electric machine controller 20 enters active discharge strategy, electric system first self-test and can judge
Motor can participate in driving, that is, whether normal detect each module temperature：Electric machine controller 20 need acquire motor temperature, water temperature,
IGBT temperature, IPM temperature then do not allow motor to work when each module temperature is excessively high；Meanwhile also need it is judged whether or not
Collision alarm：When vehicle severe crash, to ensure personal safety, drive system need to be immediately closed off.When electric machine controller 20 is sentenced
Each module temperature that breaks is normal, and when vehicle collisionless signal, it may be determined that motor can participate in vehicle driving.
In an embodiment of the present invention, electric machine controller 20 can realize that battery capacity maintains strategy in the following manner：
Electric machine controller 20 can first judge whether engine can individually meet vehicle driving and require, if it is, control motor stops
Output and power battery stop discharging, if it is not, then control motor participates in output, and further judge current SOC value and SOC mesh
Whether the difference between punctuate belongs in preset range, if it is, electricity is recycled in control motor power feedback, if it is not, then
When judging that SOC target points are more than current SOC value, control hybrid vehicle enters corresponding driving power generation strategies, Huo Zhe
When judging that SOC target points are less than current SOC value, control hybrid vehicle enters corresponding active discharge strategy.That is,
When the selection of electric machine controller 20 enters battery capacity maintenance strategy, electric machine controller 20 can first judge whether engine can be independent
Meet vehicle driving to require, wherein engine cannot individually meet vehicle driving and require can be regarded as：According to when front gear box shelves
Position, engine speed and engine test bench characteristic curve drive even if engine can not reach vehicle by maximum power output
Power demand, driving refers to that electric machine controller 20 judges the conditions such as current speed, gas pedal depth, the gradient here, is determined
The demand power of vehicle current driving.Judge engine can individually meet vehicle driving when, then motor do not export and battery not
Electric discharge；When engine cannot individually meet vehicle driving, then judge the difference of current SOC value and SOC target points or not pre-
If in range (between such as positive and negative 1%), if electricity is recycled in motor power feedback, so that hybrid vehicle is being run over
It maintains the electricity of power battery constant in journey, if not existing, judges the size of the difference of current SOC value and SOC target points, and according to
Judging result selection enters driving power generation strategies or active discharge strategy.
In an embodiment of the present invention, electric machine controller 20 can be in the following manner to realize power generation strategies of driving a vehicle：Judge
Whether engine, which can individually meet vehicle driving, requires, if it is not, then control motor participates in output, if it is, control electricity
Machine stops output and power battery stops electric discharge, and further judges whether the output torque of engine is less than preset value, if so,
Then obtain the difference between SOC target points and current SOC value；And generated output is determined according to difference, and according to generated output
The output of engine is controlled so that motor power generation, i.e., charge to power battery.Specifically, in the embodiment of the present invention
In, electric machine controller 20 determines generated output according to difference, and controls the output of engine so that motor according to generated output
It generates electricity, i.e., can be to the specific implementation process that power battery charges：When difference is greater than or equal to first threshold, hair is determined
Electrical power is the first performance number, and the output of engine is controlled according to the first performance number；When difference is less than first threshold and is more than
Or when equal to second threshold, determine that generated output is the second performance number, and the output of engine is controlled according to the second performance number,
In, the first performance number is more than the second performance number；When difference is less than second threshold and is greater than or equal to third threshold value, power generation is determined
Power is third performance number, and the output of engine is controlled according to third performance number, wherein the second performance number is more than third power
Value；When difference is equal to four threshold values, determine that generated output is the 4th performance number, and engine is controlled according to the 4th performance number
Output, wherein third threshold value is more than the 4th threshold value, and third performance number is more than the 4th performance number.In addition, in the embodiment of the present invention
In, first threshold, second threshold, third threshold value and the 4th threshold value are successively decreased successively.
For example, when the difference of SOC target points and current SOC value is greater than or equal to A% (i.e. first threshold), motor control
Device 20 determines that generated output maximum can be a kilowatts, i.e. engine drives demand power under conditions of meeting driving, in vehicle
On the basis of in overabsorption X power to engine, that is to say, that a kilowatts of power should be vehicle driving demand power+X, and with the work(
The torque of a kilowatts of control engine of rate is so that motor generates electricity so that current SOC value is equal to SOC target points；When SOC target points
When being less than A% with the difference of current SOC value and being greater than or equal to B% (second threshold), electric machine controller 20 determines generated output
Maximum can be b kilowatts, i.e. engine is under conditions of meeting driving, in overabsorption Y on the basis of vehicle drives demand power
Power is to engine, that is to say, that b kilowatts of power should be vehicle driving demand power+Y；When SOC target points and current SOC value
Difference be less than B% and more than or equal to C% (i.e. third threshold value) when, electric machine controller 20 determination generated output maximum can be c
Kilowatt, i.e. engine is started on the basis of vehicle drives demand power in overabsorption Z power under conditions of meeting driving
Machine, that is to say, that c kilowatts of power should be vehicle driving demand power+Z；When SOC target points and the difference of current SOC value are equal to
When 0% (i.e. the 4th threshold value), electric machine controller 20 determines that generated output maximum can be 0 kilowatt, that is, exits driving generating function,
In, a ＞ b ＞ c ＞ 0, X>Y>Z>0.
In conclusion hybrid vehicle is in the process of moving, electric machine controller 20 monitors user and is set by multimedia
SOC target points, vehicle power battery electricity, power battery charge-discharge electric power, the work economic zone of engine, vehicle demand
The working conditions such as torque, speed are distributed by adjusting driving generating function, motor and engine output torque, enable power battery
Electricity is close to SOC target points.
The control device of hybrid vehicle of the invention increases while taking into account hybrid power system economy as a result,
Strong interaction between hybrid vehicle and driver, i.e. driver can adjust SOC target points by multimedia, enable power
Battery capacity is maintained at the desired level of driver, meets the needs of driver is to power battery electricity.
The control device of hybrid vehicle according to the ... of the embodiment of the present invention is worked as by control module in hybrid vehicle
It is preceding to receive SOC target points set by user when being in hybrid mode and engine start, and by SOC mesh set by user
Punctuate is sent to electric machine controller, and electric machine controller obtains the current SOC value of power battery, and according to SOC mesh set by user
Punctuate and current SOC value select corresponding control strategy, and are filled to hybrid vehicle according to the control strategy of selection
Control of discharge realizes power battery electricity of the driver to hybrid vehicle that is, by introducing the set-up function of SOC target points
Carry out target control.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or passing
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, it can also
That each unit physically exists alone, can also two or more units be integrated in a module.Above-mentioned integrated mould
The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and when sold or used as an independent product, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (12)
1. a kind of control method of hybrid vehicle, which is characterized in that include the following steps：
Control module judges whether the current operating mode of hybrid vehicle is in hybrid mode；
The control module when judging that the current operating mode of the hybrid vehicle is in the hybrid mode, into
One step judges whether the engine in the hybrid vehicle starts；
The control module receives SOC targets set by user in the engine start in judging the hybrid vehicle
Point, and the SOC target points set by user are sent to electric machine controller；
The electric machine controller obtains the current SOC value of power battery；
The electric machine controller selects corresponding control plan according to the SOC target points set by user and the current SOC value
Slightly；And
In the case where meeting vehicle and driving required power, charge and discharge is carried out to the hybrid vehicle according to the control strategy of selection
Electric control.
2. the control method of hybrid vehicle as described in claim 1, which is characterized in that the electric machine controller is according to institute
It states SOC target points set by user and the current SOC value selects corresponding control strategy to specifically include：
If the SOC target points are less than the current SOC value, active discharge strategy is selected；
If the SOC target points are equal to the current SOC value, battery capacity is selected to maintain strategy；
If the SOC target points are more than the current SOC value, driving power generation strategies are selected.
3. the control method of hybrid vehicle as claimed in claim 2, which is characterized in that the active discharge strategy is specific
Including：
Judge whether motor can participate in driving；
If it is determined that the motor can participate in driving, then further judge whether power battery manager allows power battery to put
Electricity；
If the power battery manager allows the power battery to discharge, judge whether vehicle driving demand power is less than
Or the default driving power equal to the motor；
If the vehicle driving demand power is less than or equal to the default driving power of the motor, the motor list is controlled
Solely driving；
If the vehicle driving demand power is more than the default driving power of the motor, further whether engine is judged
Driving can individually be met；
It is exported with the default driving power if it is, controlling the motor, remaining driving demand power is by the hair
Motivation provides；
It is exported with maximum capacity if it is not, then controlling the engine, remaining driving demand power is provided by the motor.
4. the control method of hybrid vehicle as claimed in claim 2, which is characterized in that the battery capacity maintains strategy
It specifically includes：
Judge whether engine can individually meet vehicle driving and require；
It is required if it is determined that the engine can individually meet vehicle driving, then controls motor stopping output and power battery stops
Only discharge；
It is required if it is determined that the engine can not individually meet vehicle driving, then controls the motor and participate in output, go forward side by side
One step judges whether the difference between the current SOC value and the SOC target points belongs in preset range；
If the difference between the current SOC value and the SOC target points belongs in the preset range, the electricity is controlled
Machine energy feedback recycles electricity；
If the difference between the current SOC value and the SOC target points is not belonging in the preset range, judging
When stating SOC target points more than the current SOC value, controls the hybrid vehicle and enter the corresponding driving power generation plan
Slightly, it or when judging that the SOC target points are less than the current SOC value, controls the hybrid vehicle and enters accordingly
The active discharge strategy.
5. the control method of hybrid vehicle as described in claim 1, which is characterized in that the setting of the SOC target points
Within the preset range that range is put centered on to preset SOC target points.
6. the control method of hybrid vehicle as claimed in claim 2, which is characterized in that the driving power generation strategies are specific
Including：
Judge whether engine can individually meet vehicle driving and require；
It is required if it is determined that the engine can not individually meet vehicle driving, then controls motor and participate in output；
It is required if it is determined that the engine can individually meet vehicle driving, then controls the motor and stop output and power electric
Pond stops electric discharge, and further judges whether the output torque of the engine is less than preset value；
If it is determined that the output torque of the engine is less than the preset value, then SOC target points and described current are obtained
Difference between SOC value；And
Generated output is determined according to the difference, and the output of the engine is controlled so that motor according to the generated output
Power generation.
7. the control method of hybrid vehicle as claimed in claim 6, which is characterized in that described to be determined according to the difference
Generated output, and the output of the engine is controlled so that motor power generation is specifically included according to the generated output：
When the difference is greater than or equal to first threshold, determine that the generated output is the first performance number, and with described first
Performance number controls the torque of engine so that motor generates electricity so that current SOC value is equal to the SOC target points；
When the difference is less than the first threshold and is greater than or equal to second threshold, determine that the generated output is the second work(
Rate value, and the torque of the engine is controlled so that motor generates electricity with second performance number so that current SOC value is equal to institute
State SOC target points, wherein first performance number is more than second performance number；
When the difference is less than the second threshold and is greater than or equal to third threshold value, determine that the generated output is third work(
Rate value, and the torque of the engine is controlled so that motor generates electricity with the third performance number so that current SOC value is equal to institute
State SOC target points, wherein second performance number is more than the third performance number；
When the difference is equal to four threshold values, determine that the generated output is the 4th performance number, and with the 4th performance number
The torque of the engine is controlled so that motor generating-charging so that current SOC value is equal to the SOC target points, wherein institute
It states third threshold value and is more than the 4th threshold value, the third performance number is more than the 4th performance number；
And the first threshold, the second threshold, the third threshold value and the 4th threshold value are successively decreased successively.
8. a kind of control device of hybrid vehicle, which is characterized in that including：Control module and electric machine controller, wherein
The control module, for whether judging the current operating mode of hybrid vehicle in hybrid mode, and
When judging that the current operating mode of the hybrid vehicle is in the hybrid mode, further judge that the mixing is dynamic
Whether the engine in power automobile starts, and in the engine start in judging the hybrid vehicle, receives user and sets
Fixed SOC target points, and the SOC target points set by user are sent to electric machine controller；
The electric machine controller, the current SOC value for obtaining power battery, and according to the SOC target points set by user
Corresponding control strategy is selected with the current SOC value, and in the case where meeting vehicle and driving required power, according to selection
Control strategy carries out charge and discharge control to the hybrid vehicle.
9. the control device of hybrid vehicle as claimed in claim 8, which is characterized in that the electric machine controller is specifically used
In：
When the SOC target points are less than the current SOC value, active discharge strategy is selected；
When the SOC target points are equal to the current SOC value, battery capacity is selected to maintain strategy；
When the SOC target points are more than the current SOC value, selection driving power generation strategies.
10. the control device of hybrid vehicle as claimed in claim 8, which is characterized in that the setting of the SOC target points
Within the preset range that range is put centered on to preset SOC target points.
11. the control device of hybrid vehicle as claimed in claim 9, which is characterized in that the electric machine controller is specific
For：
Judge whether engine can individually meet vehicle driving and require；
It is required if it is determined that the engine can not individually meet vehicle driving, then controls motor and participate in output；
It is required if it is determined that the engine can individually meet vehicle driving, then controls the motor and stop output and power electric
Pond stops electric discharge, and further judges whether the output torque of the engine is less than preset value；
If it is determined that the output torque of the engine is less than the preset value, then SOC target points and described current are obtained
Difference between SOC value；And
Generated output is determined according to the difference, and the output of the engine is controlled so that motor according to the generated output
Power generation.
12. the control device of hybrid vehicle as claimed in claim 11, which is characterized in that the electric machine controller is specific
For：
When the difference is greater than or equal to first threshold, determine that the generated output is the first performance number, and according to described the
One performance number controls the output of engine；
When the difference is less than the first threshold and is greater than or equal to second threshold, determine that the generated output is the second work(
Rate value, and control according to second performance number output of the engine, wherein first performance number is more than described second
Performance number；
When the difference is less than the second threshold and is greater than or equal to third threshold value, determine that the generated output is third work(
Rate value, and control according to the third performance number output of the engine, wherein second performance number is more than the third
Performance number；
When the difference is equal to four threshold values, determine that the generated output is the 4th performance number, wherein the third threshold value is big
In the 4th threshold value, and the output of the engine is controlled according to the 4th performance number, the third performance number is more than institute
State the 4th performance number；
And the first threshold, the second threshold, the third threshold value and the 4th threshold value are successively decreased successively.
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| US10579064B2 (en) * | 2017-09-22 | 2020-03-03 | Locus Robotics Corp. | Autonomous robot charging profile selection |
| CN109572675B (en) * | 2017-09-29 | 2020-07-10 | 比亚迪股份有限公司 | Hybrid electric vehicle and power generation control method and device thereof |
| CN112389393B (en) * | 2019-08-14 | 2022-03-18 | 比亚迪股份有限公司 | Brake system, control method and device thereof, storage medium and controller |
| CN111532174A (en) * | 2019-08-27 | 2020-08-14 | 长城汽车股份有限公司 | Charge-discharge control method and device for high-voltage battery |
| CN112550271B (en) * | 2019-09-26 | 2022-04-08 | 宇通客车股份有限公司 | Hybrid electric vehicle and power output control method and control device thereof |
| CN113771628B (en) * | 2020-06-09 | 2023-10-17 | 比亚迪股份有限公司 | Hybrid electric vehicle power generation control method and device and hybrid electric vehicle |
| CN113844249B (en) * | 2021-03-08 | 2022-07-15 | 比亚迪股份有限公司 | Hybrid power system, hybrid power vehicle, control method of hybrid power vehicle and vehicle control unit |
| CN113370844B (en) * | 2021-07-22 | 2022-08-02 | 重庆长安新能源汽车科技有限公司 | Range extender start-stop control system and method for range extender electric vehicle |
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