CN110239349A - A kind of method and system of hybrid electric vehicle false alarm prevention - Google Patents
A kind of method and system of hybrid electric vehicle false alarm prevention Download PDFInfo
- Publication number
- CN110239349A CN110239349A CN201910569269.4A CN201910569269A CN110239349A CN 110239349 A CN110239349 A CN 110239349A CN 201910569269 A CN201910569269 A CN 201910569269A CN 110239349 A CN110239349 A CN 110239349A
- Authority
- CN
- China
- Prior art keywords
- battery
- voltage
- vehicle
- control module
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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 method and system of hybrid electric vehicle false alarm prevention, belong to Development of HEV Technology field.It solves the problems, such as that vehicle functions control module false alarm occurs when battery normally exports low-voltage in the prior art.A kind of method of hybrid electric vehicle false alarm prevention, comprising the following steps: judge that battery can normally export low-voltage；Start low-voltage shielding；Terminate low-voltage shielding.A kind of system of hybrid electric vehicle false alarm prevention, including the vehicle functions control module that can be generated the entire car controller of starting engine control signal and be connect with the battery of vehicle, the vehicle functions control module connects entire car controller, and the vehicle functions control module is connected with engine controller.Vehicle functions control module is alarmed when the present invention can prevent battery from normally exporting low-voltage.
Description
Technical field
The invention belongs to hybrid electric vehicle technical fields, are related to a kind of method and system of hybrid electric vehicle false alarm prevention.
Background technique
Hybrid electric vehicle generally has driving motor as power output, engine as power output or engine and drive
Dynamic motor is mixed three kinds of drive modes as power output.Compared to conventional fuel oil car, hybrid vehicle has warp
Ji, the advantage of environmental protection, therefore hybrid vehicle is increasingly becoming the purchase vehicle primary selection of people.
Hybrid electric vehicle has the 12V battery being powered to vehicle functions control module, vehicle functions control module packet
The single or multiple function control devices of vehicle are included, such as the controller of ESC (automobile electron stabilization control system), electric steering system
Controller, car body controller, speed change system controller etc..When the voltage reduction of battery then will affect vehicle functions control mould
The normal work of block, so that vehicle functions control module, which can export alarm signal, reminds driver.Work as battery in the prior art
Voltage drop is as low as just will do it alarm after certain value, as Chinese patent discloses one kind application No. is CN201611254745.6
It is provided in the capability control method and device of mixed power electric car low tension battery, obtains the voltage of low tension battery, had
Body is first voltage, the second voltage of DCDC acquisition and the battery power consumption accumulation voltage drop for obtaining voltage sensor and acquiring, if
The difference of the first voltage and second voltage is greater than the second preset value, carries out low-voltage alarm.
And in hybrid vehicle, the normal condition of normal there are accumulator property but of short duration output low-voltage such as stores
When battery makes starter motor work drive engine start to the power supply of vehicle launch machine, battery voltage can be reduced moment.It stores at this time
Battery just will be greatly reduced to the supply voltage of vehicle functions control module, so that vehicle functions control module will be easy to carry out
Low-voltage alarm, but battery voltage is restored to give vehicle functions control module normal power supply after the engine started, that is to say, that
When vehicle normally starts engine, battery voltage can normally reduce a period of time, therefore vehicle functions control module is in section
The low-voltage alarm of interior progress is probably wrong report, so that driver may take for vehicle trouble, then carries out
Inspection brings unnecessary trouble and undesirable driving experience.
Summary of the invention
There is the above problem in view of the prior art in the present invention, propose a kind of hybrid electric vehicle false alarm prevention method and
The technical issues of system, this method and system solve is that vehicle functions control mould when how to prevent battery from normally exporting low-voltage
Block alarm.
The present invention is realized by following technical proposal: a kind of method of hybrid electric vehicle false alarm prevention, including following step
It is rapid:
Judge that battery can normally export low-voltage: when needing to start engine, entire car controller generates starting and starts
The control signal of machine, vehicle functions control module judge that battery will be to starter motor for electrically activating hair after obtaining the control signal
Motivation and battery can export low-voltage；
Start low-voltage shielding: vehicle functions control module is in battery to starter motor for starting before electrically activating engine
Whether the supply voltage for not judging battery is low-voltage；
Terminate low-voltage shielding: vehicle functions control module terminates low-voltage shielding after judging engine start, starts to sentence
Whether the supply voltage of disconnected battery is low-voltage.
Starting is generated when entire car controller determination will start engine in the method for this hybrid electric vehicle false alarm prevention to start
The control signal of machine shows that entire car controller will carry out starting engine control at this time, that is to say, that engine will start work,
Battery can power to starter motor and drive engine operation, and the voltage of battery can reduce moment, control mould by vehicle functions
The control signal for obtaining entire car controller generation starting engine enters low-voltage shielding, i.e. vehicle functions module gives battery
Whether its supply voltage is without being low-voltage judgement, and vehicle functions control module is powered in battery bio-occlusion starter motor
Before driving engine operation, vehicle functions control module is not with regard to starting to judge the supply voltage of battery, thus directly
Completed before low-voltage shielding terminates to engine start, regardless of battery to the supply voltage of vehicle functions control module how much,
Vehicle functions control module not will do it low-voltage alarm, and voltage reduces when avoiding the occurrence of the power supply of battery bio-occlusion starter motor
The case where causing vehicle functions control module false alarm, to driver will not be made to take for vehicle trouble, it is unnecessary to avoid
Trouble and undesirable driving experience.After the engine started, vehicle functions control module enters normal storage battery power supply voltage
Judgement, if battery voltage can be restored after the engine started when accumulator property is normal, vehicle functions control module will not be reported
Alert, such as the abnormal accumulator feeding situation of performance, battery still exports low-voltage, and then vehicle functions control module carries out low electricity
Pressure alarm, can be to battery due to accurately being alarmed when failure generation low-voltage by aforesaid operations.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, the control letter of starting engine is generated in entire car controller
Number when export the control signal, engine controller and vehicle functions control module pass through CAN bus and receive the control signal,
After receiving the control signal, relay one normally opened of the engine controller controls between battery and starter motor is opened
It closes and closes, vehicle functions control module does not judge whether the supply voltage of battery is low-voltage.Engine controller and vehicle
Functional control module receives the control signal, and the time that the two receives the control signal is essentially identical, but vehicle functions control
Molding block can immediately enter low-voltage shielding after receiving the control signal, and engine controller also needs to control relay one
Battery and starter motor is connected, certain time can be consumed when battery and starter motor is connected in relay one, therefore in battery
Vehicle functions control module comes into low-voltage shielding when powering to starter motor.Made in battery by aforesaid operations to starting
Machine is for before electrically activating engine, vehicle functions control mould begins to not judge whether the supply voltage of battery is low-voltage, is made
The low-voltage shielding for obtaining vehicle functions control module is more accurate, is not in that battery enters for electrically activating in engine process
Just enter low-voltage afterwards to shield, avoids low-voltage shielding invalid.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, the control letter of starting engine is generated in entire car controller
Number when first export the control signal and give vehicle functions control module, the control signal hair of engine will be started after separated in time
Give engine controller.Ensure that vehicle functions control module is introduced into low-voltage shielding by aforesaid operations, stores later
Battery can just power to starter motor, avoid low-voltage shielding invalid.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, vehicle functions control module gets engine controller
After the signal that the engine of transmission has been started up, vehicle functions control module terminates low-voltage shielding.Engine controller is straight
The control element of control engine is connect, the judgement whether engine starts engine controller is most quasi-, by obtaining engine control
The signal that device processed is sent can accurately obtain engine and have been started up, at this time power supply electricity of the vehicle functions control module to battery
Whether pressure is that low-voltage is normally judged.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, letter that entire car controller is sent by vehicle launch module
The control signal for making power battery starting work is generated when number obtaining vehicle launch, vehicle functions control module gets the control
Judge that power cell of vehicle will enter after signal and powers on preacceleration inflation and battery can export low-voltage, vehicle functions control module
Start do not judge whether the supply voltage of battery is low-voltage, and vehicle functions control module gets dynamic by entire car controller
Power battery terminates low-voltage shielding when powering on the signal of preacceleration inflation completion.In vehicle launch power battery need to start work into
Horizontal high voltage power supply, can be introduced into power battery when power battery starts work and power on preliminary filling press operation, when powering on preacceleration inflation
Need to cut off the access between DCDC variator and battery, battery needs to carry out the electrical equipment on vehicle independent at this time
Power supply, battery voltage can reduce, and voltage can restore when accumulator property is normal after power battery work.By dynamic in starting
Power battery vehicle in front functional control module enters low-voltage and shields that battery is avoided normally to export low-voltage and alarm,
It causes to report by mistake.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, entire car controller makes power electric by CAN bus transmission
Pond starts the control signal of work to battery manager and vehicle functions control module, and battery manager receives control letter
The normally closed switch of relay two of the control between dcdc converter and battery disconnects after number, and vehicle functions control module obtains
Start not judge whether the supply voltage of battery is low-voltage after getting control signal.Pass through aforesaid operations, battery manager
The control signal is received with vehicle functions control module, the time that the two receives the control signal is essentially identical, but vehicle
Functional control module can immediately enter low-voltage shielding after receiving the control signal, and battery manager also needs to control relay
Device two disconnects the connection of power battery and dcdc converter, needs to expend certain time when controlling relay two and acting, therefore
When battery is individually powered to vehicle electrical equipment, vehicle functions control module comes into low-voltage shielding, avoids low-voltage
Shielding is invalid.
In the method for above-mentioned hybrid electric vehicle false alarm prevention, entire car controller, which is first sent, makes power battery start work
Control signal give vehicle functions control module, after certain interval of time the control signal of power battery starting work will send
To battery manager.Ensure that vehicle functions control module is introduced into low-voltage shielding by aforesaid operations, later power electric
Chi Caihui enters starting working condition, to avoid low-voltage shielding invalid.
A kind of system of hybrid electric vehicle false alarm prevention, the entire car controller including starting engine control signal can be generated
And the vehicle functions control module connecting with the battery of vehicle, the vehicle functions control module connect entire car controller,
The vehicle functions control module is connected with engine controller, and the entire car controller is in the control letter for generating starting engine
Number when the control signal is sent to vehicle functions control module, the vehicle functions control module receives starting engine
After control signal before battery supplies to electrically activate engine to starter motor, start do not judge whether the supply voltage of battery is low
Voltage, the vehicle functions control module judge after engine start according to the signal that engine controller is sent to battery
Whether supply voltage is that low-voltage is judged.
Starting is generated when entire car controller determination will start engine in the system of this hybrid electric vehicle false alarm prevention to start
The control signal of machine shows that entire car controller will carry out starting engine control at this time, that is to say, that engine will start work,
Battery can power to starter motor and drive engine, and the voltage of battery can reduce moment, control mould by vehicle functions and obtain
The control signal that entire car controller generates starting engine enters low-voltage shielding, i.e. vehicle functions module gives its to battery
Whether supply voltage is without being low-voltage judgement, and vehicle functions control module is powered in battery bio-occlusion starter motor and driven
Before engine operation, vehicle functions control module is not with regard to judging the supply voltage of battery, thus at this time regardless of storing
Battery to the supply voltage of vehicle functions control module how much, vehicle functions control module not will do it low-voltage alarm, keep away
The case where voltage reduction causes vehicle functions control module false alarm when exempting to occur the power supply of battery bio-occlusion starter motor, thus not
Driver can be made to take for vehicle trouble, avoid unnecessary trouble and undesirable driving experience.After the engine started, vehicle
Functional control module judges into normal storage battery power supply voltage, such as electric power storage after the engine started when accumulator property is normal
Cell voltage can restore, and vehicle functions control module not will call the police, such as the abnormal accumulator feeding situation of performance, battery or defeated
Whether then vehicle functions control module carries out low-voltage alarm to low-voltage out, can be to battery due to failure by aforesaid operations
Low-voltage is generated accurately to be alarmed.
In the system of above-mentioned hybrid electric vehicle false alarm prevention, the engine controller connects entire car controller, hair
Motivation controller is connected with the relay one for on-off battery and starting mechatronics, the engine controller and vehicle
Functional control module receives the control signal for the starting engine that entire car controller is sent, engine control by CAN bus
Device receives the normal open switch closure of control relay one after the control signal, and vehicle functions control module receives control letter
Whether the supply voltage for not judging battery after number is low-voltage.Engine controller and vehicle functions control module receive should
Signal is controlled, the time that the two receives the control signal is essentially identical, but vehicle functions control module receives control letter
Low-voltage shielding can be immediately entered after number, and engine controller also needs to control relay one and battery and starter motor is connected,
Certain time, therefore the vehicle function when battery is powered to starter motor can be consumed when battery and starter motor is connected in relay one
Energy control module comes into low-voltage shielding, i.e., is made in battery to starter motor by aforesaid operations for electrically activating engine
Before, vehicle functions control mould begins to not judge whether the supply voltage of battery is low-voltage, so that vehicle functions control mould
The low-voltage shielding of block is more accurate, is not in just to enter low-voltage shielding after storage battery power supply starts engine, avoids low
Voltage shield is invalid.
In the system of above-mentioned hybrid electric vehicle false alarm prevention, the entire car controller be connected with for send vehicle into
Enter the vehicle launch module of starting state signal, the entire car controller is connected with battery manager, and the battery manager connects
It is connected to the relay two being electrically connected for on-off dcdc converter with battery, the entire car controller passes through vehicle launch module
The control signal for making power battery starting work is generated when the signal acquisition vehicle launch of transmission, entire car controller is total by CAN
Line, which is sent, makes the control signal of power battery starting work to battery manager and vehicle functions control module, battery manager
It receives and controls the normally closed switch of relay two after the signal and disconnect, vehicle functions control module, which obtains, makes power battery work
Judge that power cell of vehicle will enter after control signal and power on preacceleration inflation and battery can export low-voltage, starts not sentence at this time
Whether the supply voltage of disconnected battery is low-voltage, and vehicle functions control module is got on power battery by entire car controller
Judge whether the supply voltage of battery is low-voltage when the signal that electric preacceleration inflation is completed.In vehicle launch, power battery needs
High voltage supply is carried out into work, starts the access that can be cut off between dcdc converter and battery when work in power battery,
To which battery needs individually to be powered the electrical equipment on vehicle, battery voltage can be reduced at this time, in power battery
Voltage can restore when accumulator property is normal after work.By when starting power battery vehicle functions control module enter low electricity
Pressure shielding causes to report by mistake to avoid battery from normally exporting low-voltage and alarm.
Compared with prior art, the method and system of this hybrid electric vehicle false alarm prevention have the advantage that
1, the present invention advances into low-voltage shielding in starting engine, to control at this time regardless of battery vehicle functions
How much is the supply voltage of module, and vehicle functions control module not will do it low-voltage alarm, avoids the occurrence of battery bio-occlusion
The case where voltage reduction causes vehicle functions control module false alarm when starter motor is powered, to driver will not be made to take for
Vehicle trouble avoids unnecessary trouble and undesirable driving experience.
2, the present invention by when start power battery vehicle functions control module enter low-voltage shielding to avoid storing
The case where battery is alarmed when normally exporting low-voltage, causes wrong report.
Detailed description of the invention
Fig. 1 is the method main flow schematic diagram in the embodiment of the present invention one.
Fig. 2 is the system attachment structure schematic diagram in the embodiment of the present invention one.
In figure, 1, entire car controller；2, battery；3, vehicle functions control module；4, engine controller；5, start
Machine；6, relay one；7, vehicle launch module；8, battery manager；9, dcdc converter；10, relay two.
Specific embodiment
The following is specific embodiments of the present invention, and in conjunction with attached drawing, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one:
As shown in Figure 1, a kind of method of hybrid electric vehicle false alarm prevention, comprising the following steps:
Step A, judge that battery can normally export low-voltage (judging that battery output voltage can be reduced normally): needing
When starting engine, entire car controller 1 generates the control signal of starting engine, and vehicle functions control module 3 obtains the control
Judge that battery 2 will be to starter motor 5 for electrically activating engine and the reduction of 2 output voltage of battery, in vehicle control after signal processed
Device 1 processed exports the control signal, engine controller 4 and vehicle functions control module when generating the control signal of starting engine
3 receive the control signal by CAN bus.CAN bus commonly connects for vehicle and communication mode, is the prior art.
Entire car controller 1 generates the control signal of starting engine to control engine start be the function itself having
Can, (entire car controller 1 can obtain vehicle by the state that speed or other sensors are sent when vehicle travels under normal circumstances
Travelling, this will not be repeated here for the prior art for this) entire car controller 1 passes through battery manager 8 (also referred to as battery management system, English
Text is referred to as BMS) electricity that gets current power battery, the electricity of current power battery and preset threshold value are compared
It is right, show that the electricity of power battery is difficult to support the pure electro-motive vehicle of motor when being less than power threshold, at this time entire car controller 1
Generate the control signal of starting engine.When the control signal of generation starting engine is also the prior art, when starts hair
The technology that motivation works is more mature and control mode is more numerous to list herein.
Entire car controller 1 shows that entire car controller 1 will start engine after generating the control signal for starting engine, at this time
Battery 2 can power to starter motor 5, and starter motor 5 drives engine again to make engine start, and battery 2 gives starter motor 5
Power supply, the power of starter motor 5 is higher, and battery 2 also needs to be powered to vehicle functions control module 3, in 2 property of battery
Also the voltage of battery 2 can be made quickly to reduce when can be normal, after the engine started, battery 2 can restore normal power supply.
Step B, start low-voltage shielding: after receiving the control signal, the control of engine controller 4 is located at battery
The normal open switch of relay 1 between 2 and starter motor 5 is closed, and vehicle functions control module 3 enters low-voltage and shields, i.e. vehicle
Functional control module 3 is in battery 2 to starter motor 5 for the power supply electricity that before electrically activating engine, begins to not judge battery 2
Whether pressure is low-voltage.Engine controller 4 and vehicle functions control module 3 receive the control signal, and the two receives this
Control signal time it is essentially identical, but vehicle functions control module 3 receive the control signal after can immediately enter low-voltage
Shielding, and engine controller 4 also needs to control relay 1 and battery 2 and starter motor 5 is connected, and is connected and stores in relay 1
Battery 2 and starter motor 5 make battery 2 that can consume certain time when powering to starter motor 5 and drive engine, therefore in battery 2
Vehicle functions control module 3 comes into low-voltage shielding when powering to starter motor 5, i.e., is made by aforesaid operations in battery 2
To starter motor 5 for before electrically activating engine, vehicle functions control mould begins to not judge whether the supply voltage of battery 2 is low
Voltage, so that the low-voltage shielding of vehicle functions control module 3 is more accurate, it is not in battery 2 for electrically activating engine
Just enter low-voltage afterwards to shield, avoids low-voltage shielding invalid.
Step C, terminate low-voltage shielding: vehicle functions control module 3 terminates low-voltage shielding after judging engine start,
Whether the supply voltage for starting to judge battery 2 is low-voltage.Vehicle functions control module 3 obtains engine control in the present embodiment
The engine condition that device 4 processed is sent, after judging engine operation, vehicle functions control module 3 terminates low-voltage shielding.Start
Machine controller 4 controls relay 1 after the engine started and disconnects being electrically connected for battery 2 and starter motor 5.Engine controller
4 be the control element for directly controlling engine, the starting of engine, the control for starting operating status, flameout state and engine
It is managed and is transmitted by engine controller 4, this is function of engine controller 4 itself.Vehicle functions control module 3
Obtain engine controller 4 send engine condition obtain engine whether start completion.Whether engine starts engine
The judgement of controller 4 is most quasi-, and the signal by obtaining the transmission of engine controller 4 can accurately obtain engine and have been started up,
Whether vehicle functions control module 3 is that low-voltage is normally judged to the supply voltage of battery 2 at this time.Vehicle functions control
The low-voltage deterministic process of module 3 is that 2 supply voltage of battery of input is compared with preset voltage threshold, is sentencing
Cut-off piezoelectric voltage judges that battery 2 exports low-voltage and sounds an alarm at this time when being lower than voltage threshold.Voltage threshold range be 2V extremely
8V, as preferably 6V.
Low-voltage is not only carried out before engine to be started in this method and shields work, but also in order to avoid battery comprehensively
2 low pressure false alarms, to start before work entrance powers on preacceleration inflation in power battery also will do it low-voltage shielding work.
Generating when the signal acquisition vehicle launch that entire car controller 1 is sent by vehicle launch module 7 opens power battery
It starts building the control signal made, vehicle functions control module 3 judges that power cell of vehicle will enter after getting the control signal
Preacceleration inflation is powered on, the beginning of vehicle functions control module 3 does not judge whether the supply voltage of battery 2 is low-voltage, vehicle functions
Control module 3 is got when power battery powers on the signal of preacceleration inflation completion according to entire car controller 1 terminates low-voltage shielding.
In vehicle launch, power battery needs to enter high voltage supply into work, also referred to as upper high pressure, power battery
Starting job control is also high voltage control on power battery, and upper high pressure is high voltage electric equipment progress in power battery and vehicle
Conducting and power battery is able to carry out high voltage supply, when upper high pressure, need to power on preacceleration inflation, when power battery powers on preacceleration inflation
Need that (DCDC is that direct current Electrical change is direct current, and the dcdc converter 9 on vehicle is by high voltage direct current by dcdc converter 9
Electricity is transformed to the device of low-voltage DC, can convert the high voltage direct current of power battery in low-voltage direct electricity output to vehicle
Electrical equipment) and battery 2 between access break, avoid powering on preacceleration inflation failure, above content is the prior art, because
This is no longer excessively repeated.Between dcdc converter 9 and battery 2 after open circuit, battery 2 is individually to the electrical equipment on vehicle
It is powered, the electrical equipment on vehicle is again more, and carries out pressure stabilizing to battery 2 without other devices, therefore battery 2 is defeated
Voltage is easy to moment reduction out, and after the completion of power battery powers on preacceleration inflation, dcdc converter 9 and battery 2 restore to connect
Connect to battery 2 carry out charging and pressure stabilizing, at this time as 2 performance of battery normally if battery 2 output supply voltage can restore.
Entire car controller 1 by CAN bus send make power battery start work control signal to battery manager 8 with
And vehicle functions control module 3, control is between dcdc converter 9 and battery 2 after battery manager 8 receives the signal
Relay 2 10 normally closed switch disconnect, vehicle functions control module 3 obtain make power battery starting work control signal
Whether the supply voltage for starting not judging battery 2 afterwards is low-voltage.By aforesaid operations, battery manager 8 and vehicle functions
Control module 3 receives the control signal, and the time that the two receives the control signal is essentially identical, but vehicle functions control mould
Block 3 can immediately enter low-voltage shielding after receiving the control signal, and battery manager 8 also needs to control relay 2 10 and breaks
The connection for opening power battery Yu dcdc converter 9 needs to expend certain time when controlling relay 2 10 and acting, therefore is storing
Vehicle functions control module 3 comes into low-voltage shielding when battery 2 is individually powered to vehicle electrical equipment, avoids low-voltage screen
It is invalid to cover.Battery manager 8 is the Management Controller of power battery, and the states such as electricity, voltage of power battery are by battery management
Device 8, which obtains, is simultaneously sent to other controllers, and whether battery manager 8 can control the power supply of power battery, these are all
The function of battery manager 8 itself.Battery manager 8 controls relay 2 10 after the completion of judging that power battery powers on preacceleration inflation
Closure is restored dcdc converter 9 and is connected with the electrical connection between battery 2, concurrently serves electric preacceleration inflation completion signal and gives vehicle control
Device 1 processed, the signal acquisition that vehicle functions control module 3 is sent by entire car controller 1 to power battery power on preacceleration inflation and complete.
As shown in Fig. 2, a kind of system of hybrid electric vehicle false alarm prevention, using the above method.This hybrid electric vehicle is anti-error
The system of alarm, including that can generate the entire car controller 1 of starting engine control signal and connect with the battery 2 of vehicle
Vehicle functions control module 3.Vehicle functions control module 3 connects entire car controller 1, and vehicle functions control module 3 is connected with hair
Motivation controller 4.Entire car controller 1 is sent to vehicle functions control module 3, vehicle when generating the control signal of starting engine
Functional control module 3 receives after the control signal of starting engine in battery 2 to starter motor 5 for electrically activating engine
Before, start do not judge whether the supply voltage of battery 2 is low-voltage.Vehicle functions control module 3 is according to engine controller 4
The signal of transmission judges whether the supply voltage of battery 2 is low-voltage after judging engine start.
Entire car controller 1 generates the control signal of starting engine to control engine start be the function itself having
Can, (entire car controller 1 can pass through vehicle speed sensor or other sensors to entire car controller 1 when vehicle travels under normal circumstances
The state of transmission obtains vehicle and is travelling, and entire car controller 1 judges to judge vehicle when speed is greater than zero when using vehicle speed sensor
Travelling, for the prior art, this will not be repeated here for this) judge that the electricity of power battery is difficult to support the pure electro-motive vehicle of motor,
Entire car controller 1 generates the control signal of starting engine at this time.When the control signal of generation starting engine is also existing
When technology it is more mature numerous to list herein start the technology that engine works.
Engine controller 4 connects entire car controller 1, and engine controller 4 is connected with for on-off battery 2 and starting
The relay 1 that machine 5 is electrically connected, the cathode power supply input terminal of normal open switch one end connection starter motor 5 of relay 1 are another
The anode of end connection battery 2, the negative power supply input terminal of starter motor 5 connect with the cathode of battery 2 and (show in figure).After
The coil of electric appliance 1 connects engine controller 4.Engine controller 4 and vehicle functions control module 3 pass through CAN bus
The control signal for the starting engine that entire car controller 1 is sent is received, engine controller 4 controls after receiving the control signal
The normal open switch of relay 1 is closed, and battery 2 is made to power to starter motor 5, can also be given when battery 2 is powered to starter motor 5
The controller of vehicle functions module such as ESC is powered.
Engine controller 4 and vehicle functions control module 3 receive the control signal, and the two receives the control signal
Time it is essentially identical, but vehicle functions control module 3 receives that low-voltage shielding can be immediately entered after the control signal, and sends out
Motivation controller 4 also needs to control relay 1 and battery 2 and starter motor 5 is connected, and battery 2 is connected and opens in relay 1
Motivation 5 makes battery 2 that can consume certain time when powering to starter motor 5 and drive engine, therefore gives starter motor 5 in battery 2
Vehicle functions control module 3 comes into low-voltage shielding when power supply, i.e., is made in battery 2 by aforesaid operations to starter motor 5
Before electrically activating engine, vehicle functions control mould begins to not judge whether the supply voltage of battery 2 is low-voltage, so that
The low-voltage shielding of vehicle functions control module 3 is more accurate, be not in battery 2 for electrically activate just enter after engine it is low
Voltage shield avoids low-voltage shielding invalid.
Engine controller 4 can obtain the state (for function of engine controller 4 itself) of engine, start in judgement
After machine starting, the control relay 1 disconnection battery 2 of engine controller 4 is electrically connected with starter motor 5, and sends engine
The signal of state is had been started up to vehicle functions control module 3 and entire car controller 1.Vehicle functions control module 3 receives this
Terminate low-voltage shielding after signal, battery 2 is compared to its supply voltage and judges whether it is low-voltage, such as vehicle function
When the controller for the ESC that energy control module 3 includes receives signal, by battery 2 to its supply voltage and voltage threshold into
Row compares, and judges 2 low-voltage of battery when being lower than voltage threshold, and export alarm signal to instrument board, is sent out by instrument board
Information warning out.
Entire car controller 1 is connected with the vehicle launch module 7 for entering starting state for sending vehicle.Vehicle launch module
7 include the controller of no key activation system, can send vehicle launch signal.Alternatively vehicle launch module
7 include ignition switch, judges that vehicle enters starting state in ignition switch closure.
Entire car controller 1 is connected with battery manager 8, and battery manager 8 is connected with for on-off dcdc converter 9 and stores
The relay 2 10 that battery 2 is electrically connected, the anode of normally closed switch one end connection power battery of relay 2 10, other end connection
The electrode input end of dcdc converter 9.The cathode of power battery connect with the cathode of dcdc converter 9 and (shows in figure).After
The output end of the coil connection battery manager 8 of electric appliance 2 10.
Generating when the signal acquisition vehicle launch that entire car controller 1 is sent by vehicle launch module 7 opens power battery
Start building make control signal, entire car controller 1 by CAN bus send make power battery starting work control signal to battery
Manager 8 and vehicle functions control module 3, control the normally closed of relay 2 10 is opened after battery manager 8 receives the signal
Shutdown is opened, and vehicle functions control module 3 judges that power cell of vehicle will be into after obtaining the control signal for making power battery work
Enter and power on preacceleration inflation, starts not judge whether the supply voltage of battery 2 is low-voltage at this time, vehicle functions control module 3
According to entire car controller 1 get power battery power on preacceleration inflation completion signal when judge battery 2 supply voltage whether be
Low-voltage.In vehicle launch, power battery needs to enter work progress high voltage supply, can cut when power battery starts work
Access between disconnected dcdc converter 9 and battery 2, so that battery 2 needs individually to supply the electrical equipment on vehicle
Electricity, 2 voltage of battery may reduce at this time, but voltage can restore when 2 performance of battery is normal after power battery works.It is logical
It crosses the vehicle functions control module 3 when starting power battery and enters low-voltage shielding to avoid battery 2 from normally exporting low electricity
It presses and alarms, cause to report by mistake.Vehicle functions control module 3 judge battery 2 supply voltage whether be low-voltage mistake
Journey is identical as the low-voltage deterministic process after the completion of above-mentioned engine start.
Vehicle functions control module 3 includes multiple function control devices, and multiple function control devices are ESC (automobile electron stabilization
Control system) controller, electric steering system controller, car body controller and speed change system controller.As another kind
Scheme vehicle functions control module 3 includes individual feature controller, and individual feature controller is the controller of ESC.Vehicle functions
When control module 3 includes multiple function control devices, multiple function control devices receive the signal of entire car controller 1, are receiving
Entire car controller 1 send starting engine control signal or make power battery start work control signal when, it is above-mentioned more
A function control device enters low-voltage shielding, i.e., does not give to battery 2 before the output of 2 supply voltage of battery reduces
Its supply voltage is judged, at the end of low-voltage shielding, multiple function control devices start the electricity of the power supply to battery 2
Pressure is judged that it is to be compared the supply voltage of input with threshold value preset in function control device that deterministic process is identical,
Low-voltage is judged when being less than, and is alarmed.
The method and system of this hybrid electric vehicle false alarm prevention judges that 2 voltage of battery can normally drop after start-up operation
Low and shielded, causing that 2 voltage of battery can reduce normally, (the reason of causing is then exists when starting engine without rear
After engine start, when the reason of causing, is starting power battery then after powering on preacceleration inflation) terminate low-voltage shielding.
The method and system of this hybrid electric vehicle false alarm prevention enters low in advance when 2 voltage of battery can be reduced normally
Voltage shield, so that vehicle functions control module 3 not will do it alarm in the normally output low-voltage of battery 2, to avoid
It sends wrong report and causes unnecessary trouble and undesirable driving experience.And in the feelings that generation 2 voltage of battery can be reduced normally
After the condition past, vehicle functions control module 3 enters normal 2 supply voltage of battery and judges, therefore this hybrid electric vehicle false alarm prevention
Alert method and system can whether failure generation low-voltage be accurately alarmed to battery 2.
Embodiment two:
Embodiment two and the structure and principle of embodiment one are essentially identical, the difference is that: it is raw in entire car controller 1
At starting engine control signal when first export the control signal to vehicle functions control module 3, will after separated in time
The control signal of starting engine is sent to engine controller 4.Engine controller 4 controls electric power storage after receiving control signal
Pond 2 powers to starter motor 5.By aforesaid operations so that it is guaranteed that vehicle functions control module 3 is introduced into low-voltage shielding, it
Battery 2 can just power to starter motor 5 afterwards, avoid low-voltage shielding invalid.Interval time is as preferably 3 milliseconds.
Embodiment three:
Embodiment three and the structure and principle of embodiment one are essentially identical, the difference is that: entire car controller 1 is first sent out
Send the control signal for making power battery starting work to vehicle functions control module 3, by the control signal after certain interval of time
It is sent to battery manager 8.Control relay 2 10 disconnects after battery manager 8 receives signal, makes dcdc converter 9 and stores
It is powered off between battery 2.By aforesaid operations so that it is guaranteed that vehicle functions control module 3 is introduced into low-voltage shielding, later
Power battery can just enter starting working condition, to avoid low-voltage shielding invalid.Interval time is as preferably 3 milliseconds.
Specific embodiment described herein is only to give an example to the present invention.The technical field of the invention
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the invention or going beyond the scope defined by the appended claims.
Although entire car controller 1, battery 2, vehicle functions control module 3, engine control is used more herein
The terms such as device 4, starter motor 5, relay 1, vehicle launch module 7, battery manager 8, dcdc converter 9, relay 2 10,
But it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain the present invention
Essence；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of method of hybrid electric vehicle false alarm prevention, which comprises the following steps:
Judge that battery (2) can normally export low-voltage: when needing to start engine, entire car controller (1) generates starting hair
The control signal of motivation, vehicle functions control module (3) judge that battery (2) will be to starter motor after obtaining the control signal
(5) it supplies to electrically activate engine and battery (2) can export low-voltage；
Start low-voltage shielding: before vehicle functions control module (3) supplies to electrically activate engine in battery (2) to starter motor (5),
Start do not judge whether the supply voltage of battery (2) is low-voltage；
Terminate low-voltage shielding: vehicle functions control module (3) terminates low-voltage shielding after judging engine start, starts to judge
Whether the supply voltage of battery (2) is low-voltage.
2. the method for hybrid electric vehicle false alarm prevention according to claim 1, which is characterized in that in entire car controller (1)
The control signal, engine controller (4) and vehicle functions control module (3) are exported when generating the control signal of starting engine
The control signal is received by CAN bus, after receiving the control signal, engine controller (4) control is located at electric power storage
The normal open switch of relay one (6) between pond (2) and starter motor (5) is closed, and vehicle functions control module (3) does not judge electric power storage
Whether the supply voltage in pond (2) is low-voltage.
3. the method for hybrid electric vehicle false alarm prevention according to claim 1, which is characterized in that in entire car controller (1)
The control signal, which is first exported, when generating the control signal of starting engine gives vehicle functions control module (3), separated in time
The control signal for starting engine is sent to engine controller (4) afterwards.
4. the method for hybrid electric vehicle false alarm prevention according to claim 2 or 3, which is characterized in that vehicle functions control
After the signal that the engine that module (3) gets engine controller (4) transmission has been started up, vehicle functions control module (3)
Terminate low-voltage shielding.
5. the method for hybrid electric vehicle false alarm prevention according to claim 4, which is characterized in that entire car controller (1) is logical
The control signal for making power battery starting work, vehicle are generated when crossing the signal acquisition vehicle launch of vehicle launch module (7) transmission
Functional control module (3), which is got, to be judged that power cell of vehicle will enter after the control signal and powers on preacceleration inflation and battery
(2) low-voltage can be exported, vehicle functions control module (3) beginning does not judge whether the supply voltage of battery (2) is low-voltage,
Vehicle functions control module (3) is got when power battery powers on the signal of preacceleration inflation completion by entire car controller (1) to be terminated
Low-voltage shielding.
6. the method for hybrid electric vehicle false alarm prevention according to claim 5, which is characterized in that entire car controller (1) is logical
Crossing CAN bus and sending makes the control signal of power battery starting work to battery manager (8) and vehicle functions control module
(3), battery manager (8) receives relay of the control between dcdc converter (9) and battery (2) after the control signal
The normally closed switch of device two (10) disconnects, and vehicle functions control module (3) starts not judge battery (2) after getting control signal
Supply voltage whether be low-voltage.
7. the method for hybrid electric vehicle false alarm prevention according to claim 5, which is characterized in that entire car controller (1) is first
Sending gives the control signal of power battery starting work vehicle functions control module (3), will make power after certain interval of time
The control signal of start battery work is sent to battery manager (8).
8. a kind of system of hybrid electric vehicle false alarm prevention, the entire car controller including starting engine control signal can be generated
(1) and with the battery (2) of vehicle the vehicle functions control module (3) connecting, which is characterized in that the vehicle functions control
Module (3) connects entire car controller (1), and the vehicle functions control module (3) is connected with engine controller (4), described whole
The control signal is sent to vehicle functions control module (3) when generating the control signal of starting engine by vehicle controller (1),
The vehicle functions control module (3) is powered in battery (2) to starter motor (5) after receiving the control signal for starting engine
Before starting engine, start do not judge whether the supply voltage of battery (2) is low-voltage, the vehicle functions control module
It (3) whether is low to the supply voltage of battery (2) after judging engine start according to the signal that engine controller (4) are sent
Voltage is judged.
9. the system of hybrid electric vehicle false alarm prevention according to claim 8, which is characterized in that the engine controller
(4) entire car controller (1) is connected, engine controller (4), which is connected with, to be electrically connected for on-off battery (2) with starter motor (5)
Relay one (6), the engine controller (4) and vehicle functions control module (3) pass through CAN bus and receive vehicle control
The control signal for the starting engine that device (1) processed sends, engine controller (4) control relay after receiving the control signal
The normal open switch of one (6) is closed, and vehicle functions control module (3) receives the confession for not judging battery (2) after the control signal
Whether piezoelectric voltage is low-voltage.
10. the system of hybrid electric vehicle false alarm prevention according to claim 9, which is characterized in that the entire car controller
(1) the vehicle launch module (7) for entering starting state signal for sending vehicle, entire car controller (1) connection are connected with
Have battery manager (8), the battery manager (8), which is connected with, to be electrically connected for on-off dcdc converter (9) with battery (2)
Relay two (10), when signal acquisition vehicle launch that the entire car controller (1) is sent by vehicle launch module (7) produces
The raw control signal for making power battery starting work, entire car controller (1) make power battery start work by CAN bus transmission
Control signal to battery manager (8) and vehicle functions control module (3), after battery manager (8) receives the signal
The normally closed switch for controlling relay two (10) disconnects, and vehicle functions control module (3) obtains the control letter for making power battery work
Judge that power cell of vehicle will enter after number and power on preacceleration inflation and battery (2) can export low-voltage, starts not judge at this time
Whether the supply voltage of battery (2) is low-voltage, and vehicle functions control module (3) is got dynamic by entire car controller (1)
Power battery judges whether the supply voltage of battery (2) is low-voltage when powering on the signal of preacceleration inflation completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569269.4A CN110239349B (en) | 2019-06-27 | 2019-06-27 | Method and system for preventing false alarm of hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569269.4A CN110239349B (en) | 2019-06-27 | 2019-06-27 | Method and system for preventing false alarm of hybrid electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110239349A true CN110239349A (en) | 2019-09-17 |
| CN110239349B CN110239349B (en) | 2021-01-22 |
Family
ID=67889934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569269.4A Active CN110239349B (en) | 2019-06-27 | 2019-06-27 | Method and system for preventing false alarm of hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110239349B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239524A (en) * | 2020-02-27 | 2020-06-05 | 东风小康汽车有限公司重庆分公司 | Detection method and system for electronic module during automobile starting |
| CN114148270A (en) * | 2021-11-25 | 2022-03-08 | 上汽通用五菱汽车股份有限公司 | Low-voltage fault warning shielding method, system and medium in engine starting process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492034A (en) * | 2009-02-17 | 2009-07-29 | 郑州宇通客车股份有限公司 | Car battery device and control method thereof |
| CN103042944A (en) * | 2012-12-15 | 2013-04-17 | 安徽工程大学 | Electric automobile driver |
| US20140091767A1 (en) * | 2009-07-01 | 2014-04-03 | Denso Corporation | Power source apparatus for vehicle |
| US20180083298A1 (en) * | 2016-09-16 | 2018-03-22 | Toyota Jidosha Kabushiki Kaisha | Output performance diagnosis apparatus for fuel cell, output performance diagnosis system for fuel cell, output performance diagnosis method for fuel cell, and non-transitory computer readable medium storing output performance diagnosis program for fuel cell |
-
2019
- 2019-06-27 CN CN201910569269.4A patent/CN110239349B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492034A (en) * | 2009-02-17 | 2009-07-29 | 郑州宇通客车股份有限公司 | Car battery device and control method thereof |
| US20140091767A1 (en) * | 2009-07-01 | 2014-04-03 | Denso Corporation | Power source apparatus for vehicle |
| CN103042944A (en) * | 2012-12-15 | 2013-04-17 | 安徽工程大学 | Electric automobile driver |
| US20180083298A1 (en) * | 2016-09-16 | 2018-03-22 | Toyota Jidosha Kabushiki Kaisha | Output performance diagnosis apparatus for fuel cell, output performance diagnosis system for fuel cell, output performance diagnosis method for fuel cell, and non-transitory computer readable medium storing output performance diagnosis program for fuel cell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239524A (en) * | 2020-02-27 | 2020-06-05 | 东风小康汽车有限公司重庆分公司 | Detection method and system for electronic module during automobile starting |
| CN114148270A (en) * | 2021-11-25 | 2022-03-08 | 上汽通用五菱汽车股份有限公司 | Low-voltage fault warning shielding method, system and medium in engine starting process |
| CN114148270B (en) * | 2021-11-25 | 2023-10-27 | 上汽通用五菱汽车股份有限公司 | Low-voltage fault warning shielding method, system and medium in engine starting process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110239349B (en) | 2021-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106364426B (en) | A kind of automobile start and stop protection system and method | |
| CN107199891A (en) | Fuel cell car power-on and power-off control method, entire car controller and electric automobile | |
| CN110267843A (en) | To the battery charge controller of electric vehicle charging | |
| CN112319259B (en) | Control system and control method for alternating-current charging electronic lock of electric automobile | |
| CN202923410U (en) | High-voltage protection system of power battery and vehicle | |
| CN113612283B (en) | Automatic power supplementing method for storage battery of pure electric vehicle | |
| CN102837617A (en) | Power-off control method and device for high-voltage system of electric automobile | |
| CN110356233B (en) | Power supply control mode of pure electric vehicle | |
| CN107962971A (en) | On-vehicle fuel electrical system power distribution unit | |
| CN110239349A (en) | A kind of method and system of hybrid electric vehicle false alarm prevention | |
| CN109693625A (en) | Automobile standby power supply module and automobile power supply system comprising it | |
| CN208896889U (en) | The charge control system of electric car | |
| CN111361419B (en) | Power-on and power-off control method and system for explosion-proof automobile | |
| CN109334510A (en) | A kind of motor-driven loading vehicle battery pack parameter display system and display methods | |
| CN110920548B (en) | Vehicle power supply control method, controller, system and vehicle | |
| DE102011017274B4 (en) | Method, energy storage device management system and circuit arrangement for charging a vehicle battery with the vehicle electrical system switched off | |
| CN106374549B (en) | The charging system of automobile batteries and the charging method of automobile batteries and automobile | |
| CN215552560U (en) | Battery package control unit that opens circuit reaches electric vehicle including it | |
| KR102457266B1 (en) | Electric vehicle for sharing information with a display device | |
| CN112937304B (en) | Electric motor car low-voltage storage battery insufficient voltage's starting system | |
| CN214001351U (en) | Range-extended pure electric vehicle safety interlocking loop signal detection loop | |
| CN209426610U (en) | A kind of motor-driven loading vehicle battery pack parameter display system | |
| CN112009247A (en) | High-voltage power-on method of vehicle-mounted charging system of electric vehicle | |
| CN220314925U (en) | Low-voltage power supply system and vehicle | |
| CN219893173U (en) | Electric motor car owner discharge circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |