CN108674188A - Hybrid vehicle self power generation limping system, method and automobile - Google Patents
Hybrid vehicle self power generation limping system, method and automobile Download PDFInfo
- Publication number
- CN108674188A CN108674188A CN201810242796.XA CN201810242796A CN108674188A CN 108674188 A CN108674188 A CN 108674188A CN 201810242796 A CN201810242796 A CN 201810242796A CN 108674188 A CN108674188 A CN 108674188A
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- Prior art keywords
- power generation
- bsg motors
- dcdc
- battery
- controller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The present invention provides a kind of hybrid vehicle self power generation limping system, method and automobiles, the system includes engine, controller, accumulator, power battery pack, and direct current transducer DCDC, BSG motor being connect respectively with controller, accumulator are loaded for external vehicle；When controller detects power battery pack power supply trouble, sends boost mode and instruct to DCDC；DCDC at high voltage, and provides the low voltage transition of accumulator to high voltage to BSG motors；BSG motors are under the excitation of high voltage, activate self power generation limping pattern, the kinetic energy that engine transmits is converted into electric energy, electric energy is transmitted to accumulator by DCDC, so that accumulator is vehicle load supplying, to alleviate due to the problem of BSG motors can not work normally caused by power battery failure, the personal safety as well as the property safety of driver is ensured.
Description
Technical field
The present invention relates to hybrid vehicle control technology fields, lame more particularly, to a kind of hybrid vehicle self power generation
Row system, method and automobile.
Background technology
Hybrid vehicle is operated by using the power from internal combustion engine and the power from battery.Tool
For body, hybrid vehicle is designed as efficient combination and the power using internal combustion engine and motor.
There was only 48V BSG (Belt Driven Starter in the vehicle power generation source of hybrid vehicle
Generator, belt-type starter motor/generator) motor system schema in, when 48V power batteries since relay damaged is disconnected
It opens or the reasons such as battery pack damage for BSG motors when cannot provide electric supply, since BSG motors are excitation electromotor, do not have
The case where power supplies of 48V power supplys, just can not normally be worked, and 12V batteries also give power generation without individual motor
Under, electricity will soon be consumed totally, eventually led to vehicle and cast anchor on the way in traveling, cause great inconvenience to user, very
To security risk.
Invention content
In view of this, the purpose of the present invention is to provide a kind of hybrid vehicle self power generation limping system, method and vapour
Vehicle improves vehicle travel process to alleviate due to the problem of BSG motors can not work normally caused by power battery failure
In reliability, ensure the personal safety as well as the property safety of driver.
In a first aspect, an embodiment of the present invention provides a kind of hybrid vehicle self power generation limping system, including engine,
Controller, accumulator, power battery pack, and direct current transducer DCDC, BSG motor for being connect respectively with the controller, it is described
BSG motors are separately connected the power battery pack with the DCDC；The DCDC also respectively with the BSG motors, the electric power storage
Pond connects；The BSG motors are also connected with the engine, and the accumulator is loaded for external vehicle；
When the controller detects the power battery pack power supply trouble, sends boost mode and instruct to described
DCDC；
The DCDC by the low voltage transition of the accumulator at high voltage, and provide the high voltage to the BSG electricity
Machine；
The BSG motors activate self power generation limping pattern, the engine are transmitted under the excitation of the high voltage
Kinetic energy is converted to electric energy, and electric energy is transmitted to the accumulator, so that the accumulator is vehicle load supplying by the DCDC.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
It states controller to be additionally operable to detect whether the high voltage meets predeterminated voltage demand, when the high voltage meets the predeterminated voltage
When demand, self power generation activation instruction is sent to the BSG motors, is instructed so that the BSG motors are walked lamely according to the self power generation,
Under the excitation of the high voltage, self power generation limping pattern is activated.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein institute
It includes power battery and battery relay to state power battery pack；The power battery connects the first end of the battery relay；
The BSG motors and the DCDC are separately connected the second end of the battery relay, the controller connect the battery after
The control terminal of electric appliance；
When the controller detects that the battery relay disconnects, the power battery pack abnormal electrical power supply is confirmed.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein institute
It includes power battery, battery relay and battery management unit to state power battery pack, the battery management unit and the control
Device connects；
The battery management unit sends battery status information to the controller in real time；The controller is according to the electricity
Pond status information judge the power battery pack whether abnormal electrical power supply.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein
The BSG motors enter after self power generation limping pattern, and the controller is additionally operable to send motor control instruction to BSG electricity
Machine, the BSG motors control the output voltage, generation current and rotating speed of itself according to the motor control instruction, wherein described
Motor control instruction includes target voltage values, target current value and rotating speed of target.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein
The BSG motors enter after self power generation limping pattern, and the controller is also according to the rotating speed and torque of the engine, setting
The power generation torque of the BSG motors；The power generation torque is sent to the BSG motors, to control the BSG motors according to described
Power generation torque generates electricity.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein institute
State controller and be also associated with vehicle execution unit, the vehicle execution unit include vehicle body stability controller, gearbox control,
One or more of battery management system；
After the BSG motors enter self power generation limping pattern, the controller sending function inhibits function to described
Vehicle execution unit.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 7th kind of first aspect
Possible embodiment, wherein when the controller detects that the power battery pack power supply is normal and vehicle operating condition is full
When sufficient power generation conditions, power generation command is sent to the BSG motors, and is controlled the battery relay and be closed；
The power battery transmits exciting current to the BSG motors, so that the BSG motors enter power generation mode；
It is the power battery charging after the BSG motors enter power generation mode；The power battery passes through the DCDC
It charges for the accumulator.
Second aspect, the embodiment of the present invention also provide a kind of hybrid vehicle self power generation limping method, are applied to such as the
Hybrid vehicle self power generation limping system described in one side and its any possible embodiment, including：
When controller detects power battery power supply trouble, sends boost mode and instruct to direct current transducer DCDC；
The DCDC at high voltage, and provides the low voltage transition of accumulator to the high voltage to BSG motors；
The BSG motors activate self power generation limping pattern under the excitation of the high voltage, and electricity is transmitted by the DCDC
It can be to the accumulator, so that the accumulator is the vehicle load supplying.
The third aspect, the embodiment of the present invention also provide a kind of automobile, including automobile body and with such as first aspect and its appoint
A kind of hybrid vehicle self power generation limping system described in possible embodiment, the hybrid vehicle self power generation are walked lamely
System is arranged inside the automobile body.
The embodiment of the present invention brings following advantageous effect：
An embodiment of the present invention provides a kind of hybrid vehicle self power generation limping systems, including engine, controller, storage
Battery, power battery pack, and direct current transducer DCDC, BSG motor for being connect respectively with controller, BSG motors are distinguished with DCDC
Connect power battery pack；DCDC is also connect with BSG motors, accumulator respectively；BSG motors are also connected with engine, and accumulator is used for
External vehicle load；When controller detects the power battery pack power supply trouble, sends boost mode and instruct to DCDC；
DCDC at high voltage, and provides the low voltage transition of accumulator to high voltage to BSG motors；Excitation of the BSG motors in high voltage
Under, self power generation limping pattern is activated, the kinetic energy that engine transmits is converted into electric energy, electric energy is transmitted to accumulator by DCDC,
So that accumulator is vehicle load supplying.In embodiments of the present invention, when the power battery failure for detecting hybrid vehicle
When, accumulator provides of short duration high pressure to BSG motors by DCDC, that is, provides initial excitation electric current, to excite BSG motors at
Work(activates self power generation limping pattern, realizes generating function by driven by engine, and to charge the battery by DCDC.In this way, will
The self power generation of BSG motors maintains the electrical consumer of vehicle as power source, ensures vehicle in high-tension battery cisco unity malfunction
In the case of can walk lamely to maintenance service station, and then improve the reliability in vehicle travel process, ensured driver
Personal safety as well as the property safety.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of hybrid vehicle self power generation limping system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another hybrid vehicle self power generation limping system provided in an embodiment of the present invention；
Fig. 3 is the signal flow direction of the assistant mode of hybrid vehicle self power generation limping system provided in an embodiment of the present invention
Figure；
Fig. 4 is the signal flow direction of the power generation mode of hybrid vehicle self power generation limping system provided in an embodiment of the present invention
Figure；
Fig. 5 is the letter of the self power generation limping pattern of hybrid vehicle self power generation limping system provided in an embodiment of the present invention
Number flow graph；
Fig. 6 is a kind of flow diagram of hybrid vehicle self power generation limping method provided in an embodiment of the present invention；
Fig. 7 is the flow diagram of another hybrid vehicle self power generation limping method provided in an embodiment of the present invention.
Icon：
10- engines；11- controllers；12- accumulators；13- power battery packs；14-DCDC；15-BSG motors；131- is dynamic
Power battery；132- battery relays；133- battery management units.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
At present in the vehicle of hybrid vehicle power generation source only has the system schema of 48V BSG motors, when 48V power
When battery cannot provide electric supply due to relay damaged disconnection or battery pack damage etc. for BSG motors, BSG motors
It can not normally be worked, since accumulator lacks electricity, eventually lead to vehicle and cast anchor on the way in traveling, pole is caused to user
Big inconvenience or even security risk.Based on this, a kind of hybrid vehicle self power generation limping system provided in an embodiment of the present invention
System, method and automobile maintain the electrical consumer of vehicle using the self power generation of BSG motors as power source, ensure vehicle in high pressure
It can walk lamely to maintenance service station, and then improve reliable in vehicle travel process in the case of battery cisco unity malfunction
Property, ensure the personal safety as well as the property safety of driver.
Technology provided by the invention can be, but not limited in the energy recovery process applied to hybrid vehicle, pass through phase
The hardware or software realization of pass.For ease of understanding the present embodiment, first to one kind disclosed in the embodiment of the present invention
Hybrid vehicle self power generation limping system describes in detail.
Fig. 1 shows a kind of structural representation of hybrid vehicle self power generation limping system provided in an embodiment of the present invention
Figure.As shown in Figure 1, the hybrid vehicle self power generation limping system includes engine 10, controller 11, accumulator 12, power
Battery pack 13, and the direct current transducer DCDC 14, the BSG motors 15 that are connect respectively with controller 11, BSG motors 15 and DCDC 14
It is separately connected power battery pack 13；DCDC 14 is also connect with BSG motors 15, accumulator 12 respectively；BSG motors 15 are also connected with hair
Motivation 10, accumulator are loaded for external vehicle.Wherein vehicle load includes in steering indicating light, automobile instrument, air-conditioning, broadcast device
It is one or more kinds of.
In possible embodiment, referring to Fig. 2, above-mentioned power battery pack 13 includes power battery 131 and battery relay
Device 132；Power battery connects the first end of battery relay；BSG motors are separately connected the second end of battery relay with DCDC,
Controller connects the control terminal of battery relay.When controller detects that battery relay disconnects, confirm that power battery pack supplies
Electrical anomaly.
In other possible embodiment, above-mentioned power battery pack 13 include power battery 131, battery relay 132 and
Battery management unit 133, battery management unit is connect with controller；Battery management unit sends battery status information to control in real time
Device processed；Controller according to battery status information judge power battery pack whether abnormal electrical power supply.Wherein the battery status information includes
Following parameter：Battery SOC (State of Charge, state-of-charge), battery temperature, cell voltage.Specifically, work as controller
When judging that the parameter in battery status information is more than corresponding preset range, power battery abnormal electrical power supply is determined.
Specifically, above-mentioned direct current transducer DCDC is bidirectional transducer, has and boosts and be depressured two kinds of operating modes.It is above-mentioned
The rated voltage of power battery in power battery pack can be, but not limited to as 48V, the rated voltage of accumulator can with but it is unlimited
In for 12V.
Referring to the letter of the assistant mode of the hybrid vehicle self power generation limping system provided in an embodiment of the present invention shown in 3
Number flow graph.When controller detects that power battery pack power supply is normal and vehicle operating condition meets power-assisted condition, transmission helps
Power is instructed to BSG motors, and BSG motors obtain electric energy from power battery, and the electric energy is converted to kinetic energy and is added on engine.
Meanwhile power battery by DCDC to charge the battery, by accumulator be vehicle load supplying, support vehicle electrical consumer.
Specifically, power battery abnormal electrical power supply judges according to method among the above.Above-mentioned power-assisted condition includes speed, power
It is a kind of or more in the SOC of battery, vehicle running state (in traveling, idling parking, vehicle braking, vehicle start accelerate)
Kind, it can specifically be set according to specific actual conditions, not limited here.
Referring to the letter of the assistant mode of the hybrid vehicle self power generation limping system provided in an embodiment of the present invention shown in 4
Number flow graph.When controller detects that power battery pack power supply is normal and vehicle operating condition meets power generation conditions, hair is sent
Electricity instruction controls battery relay closure to BSG motors.Power battery transmits exciting current to BSG motors, so that BSG is electric
Machine enters power generation mode.It is power battery charging after BSG motors enter power generation mode；Power battery is accumulator by DCDC
Charging.
Specifically, power battery abnormal electrical power supply judges according to method among the above.Above-mentioned power generation conditions include speed, power
It is a kind of or more in the SOC of battery, vehicle running state (in traveling, idling parking, vehicle braking, vehicle start accelerate)
Kind, it can specifically be set according to specific actual conditions, not limited here.BSG motors are provided in power battery
Under the action of exciting current, into spontaneous power mode, generated electricity by driven by engine, and the electricity of generation is stored to power
In battery.Meanwhile power battery by DCDC to charge the battery, by accumulator be vehicle load supplying, support vehicle it is electrical
Consumption.
Referring to the self power generation limping mould of the hybrid vehicle self power generation limping system provided in an embodiment of the present invention shown in 5
The signal flow graph of formula.When controller detects power battery pack power supply trouble, sends boost mode and instruct to DCDC；DCDC
By the low voltage transition of accumulator at high voltage, and high voltage is provided to BSG motors (dotted line expression)；BSG motors are in high voltage
Excitation under, activate self power generation limping pattern, by engine transmit kinetic energy be converted to electric energy, pass through DCDC transmit electric energy to store
Battery (solid line expression), so that accumulator is vehicle load supplying.
Specifically, when controller determines power battery pack by the on off state of battery status information or battery relay
When power supply trouble, control DCDC enters boost mode.Accumulator is supplied to one of short duration high voltage of BSG motors by DCDC,
BSG motor excitations are activated, electric energy are converted kinetic energy by driven by engine BSG motors, and electric energy is stored by DCDC to storage
Battery remains to maintain vehicle electrical consumer so that vehicle passes through lame to make accumulator in the case of power battery pack failure
Row pattern travels, effective guarantee vehicle safety.
Above-mentioned BSG motors activate self power generation limping pattern, specially under the excitation of high voltage：Controller detection is above-mentioned
Whether high voltage meets predeterminated voltage demand, when the high voltage meets the predeterminated voltage demand, sends spontaneous electrical activation and refers to
It enables to BSG motors, is instructed so that BSG motors are walked lamely according to self power generation, under the excitation of high voltage, activate self power generation limping mould
Formula.In a possible embodiment, which is the operating voltage of BSG motors.
It should be noted that illustrating only energy flow direction in above-mentioned Fig. 3 to Fig. 5, in controller, battery management unit figure simultaneously
It is not shown.
In embodiments of the present invention, when detecting the power battery failure of hybrid vehicle, accumulator passes through DCDC
Of short duration high pressure is provided to BSG motors, that is, initial excitation electric current is provided, to excite BSG motor successful activation self power generations to walk lamely
Pattern realizes generating function by driven by engine, and to charge the battery by DCDC.In this way, the self power generation of BSG motors is made
For power source, the electrical consumer of vehicle is maintained, ensures that vehicle can walk lamely in the case of high-tension battery cisco unity malfunction
To maintenance service station, and then the reliability in vehicle travel process is improved, has ensured the personal safety as well as the property safety of driver.
In a possible embodiment, for further support vehicles driving safety, it is also necessary to carry out following parameter setting：
(1) after BSG motors enter spontaneous power mode, controller is additionally operable to send motor control instruction to BSG motors,
BSG motors control the output voltage, generation current and rotating speed of itself according to motor control instruction, and wherein motor control instruction includes
Target voltage values, target current value and rotating speed of target.
Specifically, output voltage can also be controlled such as PI (proportional, integral) control method by specific control method,
To reach the requirement of stable voltage control.In addition, setting generation current is no more than target current value, the rotating speed of BSG motors is not
It can exceed that rotating speed of target.
(2) after BSG motors enter spontaneous power mode, controller sets BSG also according to the rotating speed and torque of engine
The power generation torque of motor；Power generation torque is sent to BSG motors, is generated electricity according to power generation torque with controlling BSG motors.
In other embodiments, since BSG motors at this time are only used for generating electricity, fixed negative torque can also be directly set.
(3) after BSG motors enter spontaneous power mode, controller also sends current control and instructs to DCDC, with limitation
The output current of DCDC is no more than pre-set current value, to achieve the purpose that limit the output of vehicle bearing power.
(4) after BSG motors enter spontaneous power mode, controller also sends rotating speed limitation instruction to engine, thus
The rotating speed of engine is limited no more than preset rotation speed value.
For further support vehicles reliability of operation, in a possible embodiment, above controller is also associated with vehicle
Execution unit, vehicle execution unit includes vehicle body stability controller, gearbox control, battery management system；In BSG motors
Into after self power generation limping pattern, controller sending function inhibits function to vehicle execution unit.Specifically, lame in self power generation
After row pattern, many diagnosis are unable to reliability service, need to forbid corresponding diagnostic function, such as forbid the change of gearbox control
Fast case diagnostic function.
In conclusion in compared to the prior art, above-described embodiment provided by the invention has the following advantages that：
(1) an of short duration high pressure is provided to BSG motors by accumulator and DCDC, BSG motor excitations is activated, by starting
Machine, which drives, realizes generating function, solves the systems of the only BSG electric power generations BSG motors when power battery pack cannot work
Activation problem.
(2) it is transferred to specific self power generation limping pattern after BSG electric power generations, and by the control program of system, maintains
The stabilization of voltage, control vehicle electric consumption, torque and rotating speed of engine etc. ensure the driving safety of vehicle.
Show referring to a kind of flow of hybrid vehicle self power generation limping method provided in an embodiment of the present invention shown in Fig. 6
It is intended to.As shown in fig. 6, the hybrid vehicle self power generation limping method, it is lame to be applied to above-mentioned hybrid vehicle self power generation
Row system, including：
Step S101 sends boost mode and instructs to direct current conversion when controller detects power battery power supply trouble
Device DCDC；
Step S102, DCDC at high voltage, and provide the low voltage transition of accumulator to high voltage to BSG motors；
Step S103, BSG motor activates self power generation limping pattern, is transmitted by DCDC under the excitation of the high voltage
Electric energy is to accumulator, so that accumulator is vehicle load supplying.
In embodiments of the present invention, when detecting the power battery failure of hybrid vehicle, accumulator passes through DCDC
Of short duration high pressure is provided to BSG motors, that is, initial excitation electric current is provided, to excite BSG motor successful activation self power generations to walk lamely
Pattern realizes generating function by driven by engine, and to charge the battery by DCDC.In this way, the self power generation of BSG motors is made
For power source, the electrical consumer of vehicle is maintained, ensures that vehicle can walk lamely in the case of high-tension battery cisco unity malfunction
To maintenance service station, and then the reliability in vehicle travel process is improved, has ensured the personal safety as well as the property safety of driver.
Referring to the flow of another hybrid vehicle self power generation limping method provided in an embodiment of the present invention shown in Fig. 7
Schematic diagram.In actual application process, as shown in fig. 7, this method includes：
Step S201, judge power battery pack whether abnormal electrical power supply.
If power supply normally thens follow the steps S202, into normal mode of operation；If abnormal electrical power supply thens follow the steps
S203。
Step S202, into normal mode of operation.
The normal mode of operation includes power generation mode and assistant mode.
Step S203 judges that BSG motors and DCDC whether there is failure.
If there are failures by least one of BSG motors and DCDC, it is determined that cannot be introduced into self power generation limping pattern, such as
Fruit BSG motors and DCDC then follow the steps S204 without failure.
Step S204, request DCDC precharge, powers for BSG motors.
Specifically, with reference to the introduction of above-mentioned hybrid vehicle self power generation limping system, by sending boost mode instruction
Ask DCDC into line precharge.
Step S205, judges whether the voltage after precharge meets the operating voltage requirements of BSG.
If satisfaction thens follow the steps S206, self power generation limping pattern is cannot be introduced into if being unsatisfactory for,
Step S206, request BSG motors activate self power generation limping pattern.
Specifically, it is referred to the introduction of above-mentioned hybrid vehicle self power generation limping system, by sending spontaneous electric shock
The mode of instruction living is controlled into line activating.
Step S207 judges whether successfully to open self power generation limping pattern.
Specifically, if above-mentioned self power generation activation instruction sends failure, the failure of self power generation limping pattern, BSG electricity are opened
Machine is stopped.If self power generation activation instruction is sent successfully, enter self power generation limping pattern.
Step S208 carries out BSG motor output voltage controls.
Step S209 carries out BSG Motor torque controls.
Step S210 carries out BSG current of electric limitations.
Step S211 carries out DCDC current limits.
Step S212 carries out BSG motor speed limitations.
Step S213 carries out engine speed limitation.
Step S214 carries out diagnostic function inhibition.
Step S215, if self power generation limping pattern is exited in request.
Specifically, when vehicle stall, judge whether that self power generation limping pattern is exited in request, if self power generation is exited in request
Limping pattern, then exit；If not asking to exit self power generation limping pattern, S201 is thened follow the steps.
Wherein, step S208 is to executing unlimited tandem between step S215.Step S215 be happened at vehicle stall it
Afterwards, sequence specifically in the figure 7 can not limit.
Further, the embodiments of the present invention also provide a kind of automobile, which includes automobile body and above-mentioned mixed
Close power vehicle self power generation limping system.Hybrid vehicle self power generation limping system is arranged inside automobile body.
The ordinary skill people of the composition of automobile body in automobile provided in an embodiment of the present invention and effect for this field
All it is known for member, in order to reduce redundancy, does not repeat.
Hybrid vehicle self power generation limping method provided in an embodiment of the present invention and automobile are provided with above-described embodiment
Hybrid vehicle self power generation limping system technical characteristic having the same reaches so can also solve identical technical problem
Identical technique effect.
The computer program product for the progress hybrid vehicle self power generation limping method that the embodiment of the present invention is provided, packet
The computer readable storage medium for storing the executable non-volatile program code of processor is included, what said program code included
Instruction can be used for executing the method described in previous methods embodiment, and specific implementation can be found in embodiment of the method, no longer superfluous herein
It states.
It is apparent to those skilled in the art that for convenience and simplicity of description, the mixing of foregoing description
The specific work process of power vehicle self power generation limping method and automobile can refer to corresponding in aforementioned system embodiment
Journey, details are not described herein.
Flow chart and block diagram in attached drawing show multiple embodiment method and computer program products according to the present invention
Architecture, function and operation in the cards.In this regard, each box in flowchart or block diagram can represent one
A part for module, section or code, the part of the module, section or code include it is one or more for realizing
The executable instruction of defined logic function.It should also be noted that in some implementations as replacements, the work(marked in box
Can also can in a different order than that indicated in the drawings it occur.For example, two continuous boxes can essentially be substantially parallel
Ground executes, they can also be executed in the opposite order sometimes, this is depended on the functions involved.It is also noted that block diagram
And/or the combination of each box in flow chart and the box in block diagram and or flow chart, work(as defined in executing can be used
Can or the dedicated hardware based system of action realize, or can come using a combination of dedicated hardware and computer instructions real
It is existing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.Unless specifically stated otherwise, otherwise exist
Opposite step, numerical expression and the numerical value of component and step described in these embodiments are not limit the scope of the invention.
In several embodiments provided herein, it should be understood that disclosed system, method and automobile, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer read/write memory medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of step of method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of hybrid vehicle self power generation limping system, which is characterized in that including engine, controller, accumulator, power
Battery pack, and direct current transducer DCDC, BSG motor for being connect respectively with the controller, the BSG motors with the DCDC points
The power battery pack is not connected；The DCDC is also connect with the BSG motors, the accumulator respectively；The BSG motors are also
The engine is connected, the accumulator is loaded for external vehicle；
When the controller detects the power battery pack power supply trouble, sends boost mode and instruct to the DCDC；
The DCDC at high voltage, and provides the low voltage transition of the accumulator to the high voltage to the BSG motors；
The BSG motors activate self power generation limping pattern, the kinetic energy that the engine is transmitted under the excitation of the high voltage
Electric energy is converted to, electric energy is transmitted to the accumulator, so that the accumulator is vehicle load supplying by the DCDC.
2. system according to claim 1, which is characterized in that whether completely the controller is additionally operable to detect the high voltage
Sufficient predeterminated voltage demand sends self power generation activation instruction to the BSG when the high voltage meets the predeterminated voltage demand
Motor instructs so that the BSG motors are walked lamely according to the self power generation, and under the excitation of the high voltage, activation self power generation is lame
Row pattern.
3. system according to claim 1, which is characterized in that the power battery pack includes power battery and battery relay
Device；The power battery connects the first end of the battery relay；The BSG motors are separately connected the electricity with the DCDC
The second end of pond relay, the controller connect the control terminal of the battery relay；
When the controller detects that the battery relay disconnects, the power battery pack abnormal electrical power supply is confirmed.
4. system according to claim 1, which is characterized in that the power battery pack includes power battery, battery relay
Device and battery management unit, the battery management unit are connect with the controller；
The battery management unit sends battery status information to the controller in real time；The controller is according to the battery shape
State information judge the power battery pack whether abnormal electrical power supply.
5. system according to claim 1, which is characterized in that after the BSG motors enter self power generation limping pattern,
The controller is additionally operable to send motor control instruction to the BSG motors, and the BSG motors are according to the motor control instruction
Itself output voltage, generation current and rotating speed are controlled, wherein the motor control instruction includes target voltage values, target current
Value and rotating speed of target.
6. system according to claim 1, which is characterized in that after the BSG motors enter self power generation limping pattern,
The controller sets the power generation torque of the BSG motors also according to the rotating speed and torque of the engine；Send the power generation
Torque is generated electricity with controlling the BSG motors according to the power generation torque to the BSG motors.
7. system according to claim 1, which is characterized in that the controller is also associated with vehicle execution unit, described
Vehicle execution unit includes one or more of vehicle body stability controller, gearbox control, battery management system；
After the BSG motors enter self power generation limping pattern, the controller sending function inhibits function to the vehicle
Execution unit.
8. system according to claim 4, which is characterized in that when the controller detects the power battery pack power supply
When normal and vehicle operating condition meets power generation conditions, power generation command is sent to the BSG motors, and control the battery relay
Device is closed；
The power battery transmits exciting current to the BSG motors, so that the BSG motors enter power generation mode；
It is the power battery charging after the BSG motors enter power generation mode；The power battery is institute by the DCDC
State accumulator charging.
9. a kind of hybrid vehicle self power generation limping method is applied to such as claim 1 to 8 any one of them hybrid power
Automobile self power generation limping system, which is characterized in that including：
When controller detects power battery power supply trouble, sends boost mode and instruct to direct current transducer DCDC；
The DCDC at high voltage, and provides the low voltage transition of accumulator to the high voltage to BSG motors；
The BSG motors activate self power generation limping pattern under the excitation of the high voltage, and electric energy is transmitted extremely by the DCDC
The accumulator, so that the accumulator is the vehicle load supplying.
10. a kind of automobile, which is characterized in that moved including automobile body and with such as described in any item of the claim 1 to 8 mix
Power automobile self power generation limping system, the hybrid vehicle self power generation limping system are arranged inside the automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242796.XA CN108674188A (en) | 2018-03-22 | 2018-03-22 | Hybrid vehicle self power generation limping system, method and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242796.XA CN108674188A (en) | 2018-03-22 | 2018-03-22 | Hybrid vehicle self power generation limping system, method and automobile |
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| CN108674188A true CN108674188A (en) | 2018-10-19 |
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|---|---|---|---|
| CN201810242796.XA Pending CN108674188A (en) | 2018-03-22 | 2018-03-22 | Hybrid vehicle self power generation limping system, method and automobile |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111137137A (en) * | 2018-11-05 | 2020-05-12 | 宝沃汽车（中国）有限公司 | Control method and system of hybrid electric vehicle and hybrid electric vehicle |
| CN111409460A (en) * | 2020-04-09 | 2020-07-14 | 浙江吉利汽车研究院有限公司 | Method and system for monitoring rotation state of driving motor of electric automobile |
| CN111645669A (en) * | 2020-04-29 | 2020-09-11 | 北汽福田汽车股份有限公司 | Control method and device of hybrid vehicle, medium, equipment and vehicle |
| CN111775928A (en) * | 2020-06-11 | 2020-10-16 | 吉泰车辆技术（苏州）有限公司 | Limping control method and system for hybrid vehicle |
| CN111907513A (en) * | 2020-08-14 | 2020-11-10 | 东风汽车有限公司 | Hybrid electric vehicle BSG motor control method, storage medium and electronic device |
| CN112124300A (en) * | 2020-09-02 | 2020-12-25 | 长城汽车股份有限公司 | Vehicle limp control method and controller |
| CN113352898A (en) * | 2020-03-06 | 2021-09-07 | 沃尔沃汽车公司 | Limp home mode for battery electric vehicles |
| WO2022126458A1 (en) * | 2020-12-16 | 2022-06-23 | 宁德时代新能源科技股份有限公司 | Power supply device, battery management system, power supply system, control method and medium |
| CN115257458A (en) * | 2022-08-24 | 2022-11-01 | 中国第一汽车股份有限公司 | Control method and control device of DCDC converter and vehicle |
| EP4068566A4 (en) * | 2020-02-20 | 2023-03-22 | Great Wall Motor Company Limited | Voltage control method and device for motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100225258A1 (en) * | 2009-03-09 | 2010-09-09 | Gm Global Technology Operations, Inc. | Control of an alternator-starter for a hybrid electric vehicle having a disconnected high-voltage battery |
| CN105083047A (en) * | 2015-07-28 | 2015-11-25 | 北汽福田汽车股份有限公司 | Control system of electric vehicle and electric vehicle |
| US20160176534A1 (en) * | 2014-12-19 | 2016-06-23 | Hamilton Sundstrand Corporation | Emergency power sources for propulsion systems |
| DE102015004833A1 (en) * | 2015-04-15 | 2016-10-20 | Daimler Ag | Power supply system for a motor vehicle |
| CN106314167A (en) * | 2015-06-26 | 2017-01-11 | 北汽福田汽车股份有限公司 | Monitoring system of power battery, control method for monitoring system, and vehicle |
-
2018
- 2018-03-22 CN CN201810242796.XA patent/CN108674188A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100225258A1 (en) * | 2009-03-09 | 2010-09-09 | Gm Global Technology Operations, Inc. | Control of an alternator-starter for a hybrid electric vehicle having a disconnected high-voltage battery |
| US20160176534A1 (en) * | 2014-12-19 | 2016-06-23 | Hamilton Sundstrand Corporation | Emergency power sources for propulsion systems |
| DE102015004833A1 (en) * | 2015-04-15 | 2016-10-20 | Daimler Ag | Power supply system for a motor vehicle |
| CN106314167A (en) * | 2015-06-26 | 2017-01-11 | 北汽福田汽车股份有限公司 | Monitoring system of power battery, control method for monitoring system, and vehicle |
| CN105083047A (en) * | 2015-07-28 | 2015-11-25 | 北汽福田汽车股份有限公司 | Control system of electric vehicle and electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 赵振宁: "《新能源汽车技术概述》", 1 January 2016 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111137137A (en) * | 2018-11-05 | 2020-05-12 | 宝沃汽车（中国）有限公司 | Control method and system of hybrid electric vehicle and hybrid electric vehicle |
| EP4068566A4 (en) * | 2020-02-20 | 2023-03-22 | Great Wall Motor Company Limited | Voltage control method and device for motor |
| CN113352898A (en) * | 2020-03-06 | 2021-09-07 | 沃尔沃汽车公司 | Limp home mode for battery electric vehicles |
| US11866048B2 (en) | 2020-03-06 | 2024-01-09 | Volvo Car Corporation | Limp home mode for a battery electric vehicle |
| CN113352898B (en) * | 2020-03-06 | 2023-12-19 | 沃尔沃汽车公司 | Limp home mode for battery electric vehicle |
| CN111409460A (en) * | 2020-04-09 | 2020-07-14 | 浙江吉利汽车研究院有限公司 | Method and system for monitoring rotation state of driving motor of electric automobile |
| CN111645669A (en) * | 2020-04-29 | 2020-09-11 | 北汽福田汽车股份有限公司 | Control method and device of hybrid vehicle, medium, equipment and vehicle |
| CN111775928A (en) * | 2020-06-11 | 2020-10-16 | 吉泰车辆技术（苏州）有限公司 | Limping control method and system for hybrid vehicle |
| CN111775928B (en) * | 2020-06-11 | 2024-04-02 | 吉泰车辆技术（苏州）有限公司 | Limp control method and system for hybrid vehicle |
| CN111907513A (en) * | 2020-08-14 | 2020-11-10 | 东风汽车有限公司 | Hybrid electric vehicle BSG motor control method, storage medium and electronic device |
| CN111907513B (en) * | 2020-08-14 | 2022-05-27 | 东风汽车有限公司 | Hybrid electric vehicle BSG motor control method, storage medium and electronic device |
| CN112124300A (en) * | 2020-09-02 | 2020-12-25 | 长城汽车股份有限公司 | Vehicle limp control method and controller |
| US11731529B2 (en) | 2020-12-16 | 2023-08-22 | Contemporary Amperex Technology Co., Limited | Power supply apparatus, battery management system, power supply system, control method and medium |
| WO2022126458A1 (en) * | 2020-12-16 | 2022-06-23 | 宁德时代新能源科技股份有限公司 | Power supply device, battery management system, power supply system, control method and medium |
| CN115257458A (en) * | 2022-08-24 | 2022-11-01 | 中国第一汽车股份有限公司 | Control method and control device of DCDC converter and vehicle |
| WO2024041395A1 (en) * | 2022-08-24 | 2024-02-29 | 中国第一汽车股份有限公司 | Control method and control apparatus for dc-dc converter, and vehicle |
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