CN108382234B - The control method of vehicle and its preliminary filling resistance, system and storage medium - Google Patents
The control method of vehicle and its preliminary filling resistance, system and storage medium Download PDFInfo
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- CN108382234B CN108382234B CN201810157373.8A CN201810157373A CN108382234B CN 108382234 B CN108382234 B CN 108382234B CN 201810157373 A CN201810157373 A CN 201810157373A CN 108382234 B CN108382234 B CN 108382234B
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- relay
- preliminary filling
- charge
- closure
- temperature
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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
-
- 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
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses control method, control system, vehicle and the computer readable storage mediums of a kind of power battery preliminary filling resistance of vehicle.The power battery preliminary filling resistance control method of the vehicle includes: the main negative relay of closure, it is closed pre-charge-relay, obtain continuous closure number in preset time after vehicle pre-charge-relay closure and judges whether continuous closure number is more than default closure number；If so, keeping pre-charge-relay is in off-state in default delay time, forbid being pre-charged, after pre-charge-relay is delayed preset time, the operation of response pre-charge-relay closure.Technical solution control user proposed by the present invention can operate continuously the number powered in preset time, it is ensured that the temperature rise control of preliminary filling resistance has the function that select small-power, Miniaturization Design preliminary filling resistance in specification limit.
Description
Technical field
The present invention relates to technical field of vehicle more particularly to a kind of control method of the power battery preliminary filling resistance of vehicle,
Control system, vehicle and computer readable storage medium.
Background technique
In current starting circuit for automobile, including electric car, hybrid vehicle, plug-in hybrid vehicle, combustion
Expect battery car etc., generally all include in vehicle for filter and the bulky capacitor of pressure stabilizing, when a vehicle is started, need to be closed lead after
Electric appliance to vehicle load supplying, due to the presence of these capacitors, if directly be closed main relay, closure when, electricity
Appearance is equivalent to short circuit, and closure moment can generate very big dash current, this dash current can directly damage main relay, even
Power battery can be damaged, therefore preliminary filling branch can be all added in starting circuit for automobile, preliminary filling branch includes preliminary filling resistance and precharge
Relay is parallel to main relay both ends.When vehicle high-voltage powers on, it is first closed pre-charge-relay, power battery passes through preliminary filling
Resistance charges to capacitor, as charging progresses, when the voltage at capacitor both ends increases to the 90% ~ 95% of power battery voltage
When, main relay is reclosed, preliminary filling power up terminates, and circuit will not generate dash current at this time.
But in actual pre-charge process, if the high-tension circuit other than start-up circuit occurs short circuit or holds
Continuous work, the voltage at capacitor both ends can not precharge time obtain enough electric energy make capacitor both ends voltage increase to it is default
Voltage, cause precharge time too long, the heat of preliminary filling resistance is cumulative；Or in vehicle in use, the dielectric of capacitor
The factors such as aging affect the parameter of capacitor, then voltage drop ratio can also change；Or due to user misoperation, cause vehicle
Stop, maloperation is not repaired, and carries out multiple start stop operation.
With due to first-class, when occurring such as above situation, vehicle occur pre-charging time it is too long when, usual user can be again
Secondary opening key, circulate operation cause the generation of multiple preliminary filling time-out, and the heat of preliminary filling resistance further adds up, final preliminary filling
The temperature of resistance may be more than the range that can be born, and cause resistance to damage, further can also damage capacitor and load, or
User misoperation causes multiple continuous start-stop operation, and the heat of preliminary filling resistance is cumulative.
In the prior art, the temperature for obtaining precharge time and acquiring preliminary filling resistance being implemented on software for this situation
Degree uses the preliminary filling resistance of relatively high power to realize protection on resistance, and volume is larger, at high cost.
Summary of the invention
The main purpose of the present invention is to provide a kind of control methods of the power battery preliminary filling resistance of vehicle, control system
System, vehicle and computer readable storage medium, it is intended to solve that current vehicle preliminary filling resistor body product is big, power is big, at high cost asks
Topic.
To achieve the above object, the control method of the power battery preliminary filling resistance of a kind of vehicle provided by the invention, it is described
Vehicle include: power battery, main positive relay, main negative relay, pre-charge-relay, preliminary filling resistance, battery management system and
The anode of capacitor, the battery is connect by the positive relay of the master with the first end of the capacitor, and the cathode of the battery is logical
It crosses the negative relay of the master to connect with the second end of the capacitor, the pre-charge-relay connect composition with the preliminary filling resistance
Preliminary filling circuit, the preliminary filling circuit is in parallel with the positive relay of the master, and the battery management system is for controlling the precharge
The disconnection and closure of relay, the control method the following steps are included:
It is closed the negative relay of the master, is closed the pre-charge-relay, by described in battery management system control
The capacitor charging is given in preliminary filling circuit；
Obtain continuous closure number of the vehicle pre-charge-relay in preset time；
Judge whether the continuous closure number is more than default closure number；
Judge whether the pre-charge-relay reaches default delay time in the duration of off-state；
When the pre-charge-relay reaches the default delay time in the duration of off-state, response is described pre-
The operation of charge relay closure；
It is not up to the default delay time when the duration that the pre-charge-relay is in off-state, then keeps institute
Pre-charge-relay is stated in off-state, forbids being pre-charged.
Preferably, described to judge that the step of whether continuous closure number is more than default closure number includes:
When the continuous closure number is less than default closure number, then the behaviour of the pre-charge-relay closure is responded
Make.
Preferably, the vehicle further includes temperature sensor, and the battery management system is also used to detect the power electric
The temperature in pond, the closure negative relay of master, is closed the pre-charge-relay, gives the electricity by the preliminary filling circuit
It further include step before capacity charge step；
The temperature for obtaining the power battery is the initial temperature of the preliminary filling resistance；
Judge whether the initial temperature is more than preset first temperature value；
When the initial temperature is more than preset first temperature value, then keeping the pre-charge-relay is in off-state,
Forbid being pre-charged；
When the initial temperature is no more than preset first temperature value, then enters and be closed the negative relay of master, is closed institute
The step of stating pre-charge-relay, giving the capacitor charging by the preliminary filling circuit.
Preferably, described to judge whether the continuous closure number is more than that default closure number further comprises the steps of:
The output electric current for obtaining the power battery is the electric current in the preliminary filling circuit；
Obtain the precharge time of the capacitor；
According to the electric current in the preliminary filling circuit, the computing the resistor value of the precharge time of the capacitor and the pre-charge resistance
The heat that the preliminary filling resistance generates in the pre-charging time；
According to preliminary filling resistance described in the heat Calculation of the generation in the temperature rise of the pre-charging time；
According to the initial temperature of the preliminary filling resistance, maximum can bearing temperature and the preliminary filling resistance in the preliminary filling
Between temperature rise calculate default closure number of the pre-charge-relay in preset time；
Judge whether the continuous closure number is more than default closure number according to the default closure number of the calculating.
Preferably, the control method further comprises the steps of:
Obtain the continuous temperature rise of the preliminary filling resistance；
When the continuous temperature rise is more than preset second temperature value, then keeping the pre-charge-relay is in off-state,
Forbid being pre-charged；
When the current temperature of the preliminary filling resistance is dropped to no more than preset first temperature value, then the precharge is responded
The operation of relay closure.
To achieve the above object, described the present invention also provides a kind of control system of the power battery preliminary filling resistance of vehicle
Vehicle include: power battery, main positive relay, main negative relay, pre-charge-relay, preliminary filling resistance, battery management system and
The anode of capacitor, the battery is connect by the positive relay of the master with the first end of the capacitor, and the cathode of the battery is logical
It crosses the negative relay of the master to connect with the second end of the capacitor, the pre-charge-relay connect composition with the preliminary filling resistance
Preliminary filling circuit, the preliminary filling circuit is in parallel with the positive relay of the master, and the battery management system is for controlling the precharge
The disconnection and closure of relay, the control system include:
Closure module is closed the pre-charge-relay, passes through the preliminary filling circuit for being closed the negative relay of the master
To the capacitor charging；
Accumulator module, for obtaining the continuous closure time after the vehicle pre-charge-relay is closed in preset time
Number；
First judgment module, for judging whether the continuous closure number is more than default closure number；
Second judgment module, for judging whether the pre-charge-relay reaches default in the duration of off-state
Delay time；
First forbidden energy module, for when the continuous closure number be more than it is default be closed number when and the precharge relay
Device is not up to the default delay time in the duration of off-state, then keeps the pre-charge-relay in default delay
It is in off-state in time, forbids being pre-charged;
First enabled module, for when the continuous closure number is less than default closure number or the precharge after
Electric appliance reaches the default delay time in the duration of off-state, then responds the behaviour of the pre-charge-relay closure
Make.
Preferably, the battery management system is also used to detect the temperature of the power battery, and the control system includes:
Temperature acquisition module, the temperature for obtaining the power battery are the initial temperature of the preliminary filling resistance；
Temperature judgment module, for judging whether the initial temperature is more than preset first temperature value；
Second forbidden energy module, for when the initial temperature is more than preset first temperature value, then keeping the precharge
Relay is in off-state, forbids being pre-charged；
Second enabled module, for when the initial temperature is no more than preset first temperature value, then allowing to be pre-charged.
Preferably, the first judgment module further include:
Electric current acquiring unit, the output electric current for obtaining the power battery are the electric current in the preliminary filling circuit；
Charging time acquiring unit, for obtaining the precharge time of the capacitor；
Heat Calculation unit, for according to according to the electric current in the preliminary filling circuit, the precharge time of the capacitor and institute
State the heat that preliminary filling resistance generates in the pre-charging time described in the computing the resistor value of pre-charge resistance；
Temperature rise computing unit, for the preliminary filling resistance according to the heat Calculation of the generation in the temperature of the pre-charging time
It rises；
Default closure number computing unit, for temperature can be born according to according to initial temperature, the maximum of the preliminary filling resistance
It is default in preset time that degree and the preliminary filling resistance in the temperature rise of the pre-charging time calculate the pre-charge-relay
It is closed number；
Judging unit judges whether the continuous closure number is more than institute for the default closure number according to the calculating
State default closure number.
To achieve the above object, the present invention also provides a kind of vehicles, including power battery, main positive relay, main negative relay
Device, pre-charge-relay, preliminary filling resistance, battery management system, capacitor and load, the anode of the battery by the master just after
Electric appliance is connect with the first end of the capacitor, the second end that the cathode of the battery passes through the master negative relay and the capacitor
Connection, the pre-charge-relay connect with the preliminary filling resistance forms preliminary filling circuit, the preliminary filling circuit and the master just after
Electric appliance is in parallel, and the load is in parallel with the capacitor, and including electric machine controller etc., the vehicle further includes power electric for the load
The control system of pond preliminary filling resistance, the control system include temperature sensing, processor, memory and store on a memory
And the computer program that can be run on a processor, the processor realize such as any of the above-described when executing the computer program
The step of control method of the power battery preliminary filling resistance of the vehicle.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Computer program is stored on medium, the computer program realizes vehicle as described in any one of the above embodiments when being executed by processor
Power battery preliminary filling resistance control method the step of.
In technical solution proposed by the present invention, by being closed the negative relay of master, it is closed the pre-charge-relay, is obtained
Continuous closure number of the vehicle pre-charge-relay in preset time is taken, and judges whether the continuous closure number surpasses
Default closure number is crossed, when the continuous closure number is more than default closure number, then the pre-charge-relay is kept to exist
It is in off-state in default delay time, forbids being pre-charged, after the pre-charge-relay is delayed preset time, described in response
The operation of pre-charge-relay closure.Technical solution control user proposed by the present invention can operate continuously in preset time to be powered on
Number, when beyond it is default power on number when, then use can just be responded again by controlling the pre-charge-relay delay preset time
The power on operation at family, it is ensured that the temperature rise control of preliminary filling resistance reaches in specification limit and selects small-power, Miniaturization Design precharge
The effect of resistance.
Detailed description of the invention
Fig. 1 is the circuit diagram of the start-up circuit of the vehicle in one embodiment of the invention；
Fig. 2 is the modular structure schematic diagram of the control system of the vehicle in another embodiment of the present invention；
Fig. 3 is the flow diagram of the second embodiment of the control method of the power battery preliminary filling resistance of vehicle of the present invention；
Fig. 4 is the process in the control method 3rd embodiment of power battery preliminary filling resistance of the present invention before step S10
Schematic diagram；
Fig. 5 is the refinement process of step S30 in the fourth embodiment of the control method of power battery preliminary filling resistance of the present invention
Figure；
Fig. 6 be power battery preliminary filling resistance of the present invention control method the 5th embodiment in after step S34 process
Schematic diagram；
Fig. 7 is the functional block diagram of the sixth embodiment of the control system of power battery preliminary filling resistance of the present invention；
Fig. 8 is the functional block diagram in the 7th embodiment of the control system of power battery preliminary filling resistance of the present invention；
Fig. 9 is the function of first judgment module in the 8th embodiment of the control system of power battery preliminary filling resistance of the present invention
Module diagram.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is please referred to, to realize the present invention the circuit diagram of the start-up circuit of the vehicle of each embodiment.Specifically, institute
State vehicle include power battery V, main positive relay K2, main negative relay K1, pre-charge-relay K3, preliminary filling resistance R, capacitor C,
Battery management system BMS and load, the first end that the anode of the battery V passes through the master positive relay K2 and the capacitor C
Connection, the cathode of the battery are connect by the negative relay K1 of the master with the second end of the capacitor C, the precharge relay
Device K3 connect composition preliminary filling circuit with the preliminary filling resistance R, and the preliminary filling circuit is in parallel with the positive relay K2 of the master, described negative
Load is in parallel with the capacitor C, and the load includes electric machine controller, high tension apparatus etc..
Specifically, the battery management system BMS is used to control the disconnection and closure of the power battery relay, also uses
In signals such as temperature, the current or voltages for detecting the power battery V.
It referring to figure 2., is the modular structure schematic diagram of the control system of the vehicle in another embodiment of the present invention.Specifically
Ground, the vehicle further include the control system of power battery preliminary filling resistance, and the control system includes processor 10, memory 20
And it is stored in the computer program that can be run on memory 20 and on processor 10, computer program is simultaneously by processor 10
It executes.
It will be understood by those skilled in the art that vehicle shown in Figure 2 can also include than illustrating more or fewer portions
Part perhaps combines certain components or different component layouts.
Based on above-mentioned hardware configuration and control system, each reality of the control method of the preliminary filling resistance of vehicle of the present invention is proposed
Apply example.
In the first embodiment of the control method of the power battery preliminary filling resistance of vehicle of the present invention, the vehicle includes:
Power battery V, main positive relay K2, main negative relay K1, pre-charge-relay K3, preliminary filling resistance R, battery management system BMS
It is connect by the positive relay K2 of the master with the first end of the capacitor C with the anode of capacitor C, the battery, the battery
Cathode is connect by the negative relay K1 of the master with the second end of the capacitor C, the pre-charge-relay K3 and the preliminary filling
Resistance R connection forms preliminary filling circuit, and the preliminary filling circuit is in parallel with the positive relay K2 of the master, the battery management system BMS
For controlling the disconnection and closure of the pre-charge-relay K3, the control method the following steps are included:
Step S10 is closed the negative relay K1 of the master, is closed the pre-charge-relay K3, passes through the battery management
System BMS controls the preliminary filling circuit and charges to the capacitor C.
Specifically, the battery management system BMS controls the open and close of the pre-charge-relay K3, the battery
When management system BMS provides high level to the coil of the pre-charge-relay K3, the normally opened touching of the pre-charge-relay K3
Head closure, enable the pre-charge-relay K3；Conversely, when the battery management system BMS gives the pre-charge-relay K3
Coil provide low level when, forbidden energy pre-charge-relay K3.When user is inserted into key, when getting to " ON " shelves from " OFF " shelves, institute
Main negative relay K1 closure is stated, the battery management system BMS controls the pre-charge-relay K3 closure, the power battery
The V and negative relay K1 of the master, pre-charge-relay K3, preliminary filling resistance R, capacitor C form closed circuit, the power battery V
It charges to the capacitor C.When the voltage at the both ends capacitor C reaches the 90% ~ 95% of the power battery V both end voltage, precharge
Terminate.
Step S20 obtains continuous closure number of the vehicle pre-charge-relay K1 in preset time.
Specifically, the power battery V terminates to capacitor C charging, and the pre-charge-relay K3 is disconnected, the master
Positive relay K2 closure, the high-voltage load of the vehicle are connected, and high pressure powers on.
In actual conditions, if high-voltage load circuit occurs short circuit or continues working, the voltage at the both ends capacitor C can not be
Precharge time, which obtains enough electric energy, makes the voltage at the both ends capacitor C increase to preset voltage, causes precharge time too long,
The heat of preliminary filling resistance R is cumulative；Or in vehicle in use, the factors such as dielectric aging of capacitor C, affect capacitor C's
Parameter, then voltage drop ratio can also change；Or there is open-circuit fault in preliminary filling electrical circuit, the capacitor C cannot charge；Or by
In user misoperation, vehicle is caused to stop, maloperation is not repaired, and carries out multiple start stop operation.
With due to first-class, when there is situation as above, vehicle occur pre-charging time it is too long when, usual user can be again
Open key, circulate operation.
Further, when user activates to open key for the first time, and vehicle cannot start always, and user's selection is again turned on
Key, circulate operation obtain the continuous closure number after the pre-charge-relay K1 is closed in preset time, the number
The sum of the closure number for being the pre-charge-relay K1 in preset time, the number including first time closure are described preset
Time can be configured according to the actual situation.
Step S30 judges whether the continuous closure number is more than default closure number.
Specifically, when the capacitor C is in precharge, the preliminary filling resistance R accumulates heat, under normal circumstances, the heat
Amount can all be radiated by other means such as cooling fin, will not be influenced too much to vehicle, however, when vehicle occurs as above-mentioned
When the reasons such as failure or maloperation, the precharge time of the capacitor C is too long, and due to the multiple circulate operation of user, in advance
Overtime repeatedly generation is filled, then the heat that will result in the preliminary filling resistance R further adds up, the temperature of final preliminary filling resistance R
It may be more than specification limit, cause preliminary filling resistance R to damage, further can also damage battery or load.In order to avoid above-mentioned feelings
Condition occurs, and obtains the continuous closure number after the negative relay K1 of the vehicle master is closed in preset time, and further judge
Whether the continuous closure number is more than default closure number.Such as control user's start and stop or recycle unlocking key number exist
It is not allowed more than in one minute 6 times.
Further, the default closure number can be determined according to the voltage of the power battery V.
Step S40 then keeps the pre-charge-relay K3 when the continuous closure number is more than default closure number
In off-state, forbid being pre-charged.
Specifically, when the continuous closure number is more than default closure number, the battery management system BMS controls institute
Pre-charge-relay K3 is stated in off-state, forbids being pre-charged, in order to avoid the heat of the preliminary filling resistance R is cumulative.
Step S50, when judging whether the pre-charge-relay K3 reaches default delay in the duration of off-state
Between；
Step S60 reaches the default delay time when the duration that the pre-charge-relay K3 is in off-state,
Respond the operation of the pre-charge-relay K3 closure；
Step S70, when the pre-charge-relay K3 is not up to the default delay in the duration of off-state
Between, then it keeps the pre-charge-relay K3 in off-state, forbids being pre-charged.
Specifically, the pre-charge-relay K3 makes the preliminary filling resistance R in off-state and the default delay time that is delayed
It radiates in the default delay time, controls the temperature of the preliminary filling resistance R in a suitable range.When described
Pre-charge-relay K3 is delayed after default preset time, if user continues to open key, the vehicle responds the precharge
The operation of relay K3 closure, the capacitor C preliminary filling power on.Conversely, the holding in off-state in the pre-charge-relay K3
In the case that the continuous time is not up to the default delay time, then keeps the pre-charge-relay K3 in off-state, forbid
Precharge.
In technical solution proposed by the present invention, by being closed the negative relay K1 of master, it is closed the pre-charge-relay
K3 obtains the continuous closure number after the negative relay K1 of the vehicle master is closed in preset time, and judges the Continuous Closed
Close whether number is more than that default closure number then keeps described pre- when the continuous closure number is more than default closure number
Charge relay K3 is in off-state in default delay time, forbids being pre-charged, when pre-charge-relay K3 delay is pre-
If after preset time, responding the operation of the pre-charge-relay K3 closure.Technical solution control user proposed by the present invention exists
The number powered on can be operated continuously in preset time, when beyond it is default power on number when, then control the pre-charge-relay K3
Delay preset time can just respond the power on operation of user again, it is ensured that the temperature rise of preliminary filling resistance R is controlled in specification limit, is reached
Select the effect of small-power, Miniaturization Design preliminary filling resistance.
Referring to figure 3., Fig. 3 is the control method based on the power battery preliminary filling resistance of vehicle in first embodiment of the invention
It is proposed the flow diagram of the control method 101 of power battery preliminary filling resistance in second embodiment of the invention.In second implementation
In example, step S10 ~ S70 is identical with the first embodiment, and details are not described herein；Its difference is, in this second embodiment,
The power battery preliminary filling resistance control method is after step S30 further include:
Step S80 then responds the pre-charge-relay when the continuous closure number is less than default closure number
The operation of K3 closure.
Specifically, when the continuous closure number is less than default closure number, the temperature rise of the preliminary filling resistance R is being advised
Within the scope of lattice, user is also allowed to be again turned on the operation of vehicle.
Referring to figure 4., Fig. 4 is in the 3rd embodiment of the control method of power battery preliminary filling resistance of the present invention in step
Flow diagram before rapid S10, in this embodiment, step S10 is identical as S10 in first embodiment, and institute's difference is, institute
The temperature that battery management system is also used to detect the power battery is stated, the power battery preliminary filling resistance control method is in step
Include: before S10
Step S11, the temperature for obtaining power battery is the initial temperature of the preliminary filling resistance；
Step S12 judges whether the initial temperature is more than preset first temperature value；
Step S13 then keeps the pre-charge-relay K3 to be in when the initial temperature is more than preset first temperature value
Off-state forbids being pre-charged；
Step S14 then enters when the initial temperature is no more than preset first temperature value and is closed the negative relay of master
The step of K1 is closed the pre-charge-relay K3, is charged by the preliminary filling circuit to the capacitor C.
Specifically, it is the first of the preliminary filling resistance that the battery management system, which is also used to detect the temperature of the power battery,
Beginning temperature, and it is sent to processor 20, the processor 20 judges whether the initial temperature is more than preset first temperature value.
Further, in this embodiment the preset first temperature value can be set to 80 DEG C, the preset first temperature
It can be configured according to the power and actual conditions of the preliminary filling resistance R, such as a value in 50 DEG C ~ 100 DEG C.
Further, it when the initial temperature of the preliminary filling resistance R is greater than the default preset first temperature value, then keeps
The pre-charge-relay K3 is in off-state, forbids being pre-charged, and temperature is increased and damaged when the preliminary filling resistance R being avoided to start
It is bad, or corresponding wiring high-temp combustion.When the initial temperature is no more than preset first temperature value, then the vehicle can be responded
The step of normal starting.
The present embodiment is to ensure that the vehicle passes through temperature before being initiated and judges whether the vehicle can be with preliminary filling
Electricity ensure that the safety of preliminary filling electrical circuit.
Referring to figure 5., Fig. 5 is the thin of power battery preliminary filling resistance control method step S30 in fourth embodiment of the invention
Change flow chart.In the fourth embodiment, the control method of the power battery preliminary filling resistance is after step slo further include:
Step S31, the output electric current for obtaining the power battery is the electric current in the preliminary filling circuit；
Step S32 obtains the precharge time of the capacitor；
Step S33, according to the electric current in the preliminary filling circuit, the precharge time of the capacitor and the pre-charge resistance
The heat that preliminary filling resistance generates in the pre-charging time described in computing the resistor value；
Step S34, according to preliminary filling resistance described in the heat Calculation of the generation in the temperature rise of the pre-charging time；
Step S35, according to the initial temperature of the preliminary filling resistance, maximum can bearing temperature and the preliminary filling resistance in institute
The temperature rise for stating pre-charging time calculates default closure number of the pre-charge-relay in preset time；
Step S36 judges whether the continuous closure number is more than default close according to the default closure number of the calculating
Close number.
Specifically, the battery management system detects the electricity that the output electric current of the power battery is the preliminary filling circuit
Stream, since the voltage of power cell of vehicle V can change, in electric discharge in use, the voltage of different electronic battery V, exports
Size of current is also different, in the charging process of capacitor C, the heat history of the preliminary filling resistance R also difference, according to different
Size of current, it is also different that the pre-charge-relay K3 can continuously be closed number.
Specifically, do not consider the pre-charge-relay K3 in the state of continuous open and close, the preliminary filling resistance R
Temperature heat waste amount, with maximum value calculation, the temperature value that can be born according to the preliminary filling resistance R maximum and initial temperature, and
According to temperature rise of the preliminary filling resistance R in a pre-charge process, the pre-charge-relay K3 is calculated in preset time
Default closure number, and judge whether the continuous closure number is more than default close according to the default closure number of the calculating
Close number.
The present embodiment is can be according to the output electric current of the power cell of vehicle, to limit the preliminary filling resistance R's
Different continuous closure numbers.
Fig. 6 is please referred to, Fig. 6 is the control method based on the power battery preliminary filling resistance of vehicle in fourth embodiment of the invention
100 propose flow diagram of the power battery preliminary filling resistance control method after step S34 in fifth embodiment of the invention.In
In 5th embodiment, after step S34 further include:
Step S37 obtains the continuous temperature rise of the preliminary filling resistance；
Step S38 then keeps the pre-charge-relay in disconnected when the continuous temperature rise is more than preset second temperature value
Open state forbids being pre-charged；
Step S39 then responds institute when the current temperature of the preliminary filling resistance is dropped to no more than preset first temperature value
State the operation of pre-charge-relay closure.
Specifically, according to the characteristic of resistance itself, the admissible temperature rise of different capacity resistance is different, the bigger electricity of power
Resistance, admissible temperature rise are bigger.In the present embodiment, according to the power and resistance specification for selecting preliminary filling resistance R, specification is compared
Book obtains the preset second temperature value.
Further, when the temperature rise is more than preset second temperature value, then keep the pre-charge-relay K3 in disconnected
Open state forbids being pre-charged.When the pre-charge-relay K3 is in off-state, the preliminary filling resistance R can radiate, when described pre-
The temperature of charging resistance R drops to the operation that the pre-charge-relay K3 closure is then responded no more than preset first temperature value, when
When the temperature rise is no more than preset second temperature value, then the operation of the pre-charge-relay K3 closure can be responded.
The present embodiment is ensure that the vehicle after actuation or the mistake that is continuously closed of the pre-charge-relay K3
Cheng Zhong judges whether the vehicle can be pre-charged by temperature rise, ensure that the safety of preliminary filling electrical circuit.
Fig. 7 is please referred to, Fig. 7 is the functional module of the sixth embodiment of the control system of power battery preliminary filling resistance of the present invention
Schematic diagram 102.Specifically, the vehicle includes: power battery V, main positive relay K2, main negative relay K1, precharge relay
The anode of device K3, preliminary filling resistance R, battery management system BMS and capacitor C, the battery pass through the positive relay K2 of the master and institute
The first end connection of capacitor C is stated, the cathode of the battery is connected by the second end of the negative relay K1 of the master and capacitor C
Connect, the pre-charge-relay K3 connect composition preliminary filling circuit with the preliminary filling resistance R, the preliminary filling circuit and the master just after
Electric appliance is in parallel, and the battery management system BMS is used to control the disconnection and closure of the pre-charge-relay K3, the control system
System includes:
It is closed module 40 and the pre-charge-relay K3 is closed, by described pre- for being closed the negative relay K1 of the master
Circuit is filled to charge to the capacitor C；
Accumulator module 50, for obtaining the continuous closure after the vehicle pre-charge-relay K1 is closed in preset time
Number；
First judgment module 60, for judging whether the continuous closure number is more than default closure number；
Second judgment module 70, for judging whether the pre-charge-relay K3 reaches in the duration of off-state
Default delay time；
First forbidden energy module 80, for when the continuous closure number is more than default closure number and it is described be pre-charged after
Electric appliance K3 is not up to the default delay time in the duration of off-state, then keeps the pre-charge-relay K3 pre-
If being in off-state in delay time, forbid being pre-charged;
First enabled module 90, for when the continuous closure number is less than default closure number or the precharge
Relay K3 reaches the default delay time in the duration of off-state, then responds the pre-charge-relay K3 closure
Operation.
In technical solution proposed by the present invention, by being closed the negative relay K1 of master, it is closed the pre-charge-relay
K3 obtains continuous closure number of the vehicle pre-charge-relay K1 in preset time, and judges the continuous closure time
Whether number is more than that default closure number then keeps the precharge when the continuous closure number is more than default closure number
Relay K3 is in off-state in default delay time, forbids being pre-charged, when pre-charge-relay K3 delay is default pre-
If after the time, responding the operation of the pre-charge-relay K3 closure.Technical solution control user proposed by the present invention is preset
The number powered on can be operated continuously in time, when beyond it is default power on number when, then control the pre-charge-relay K3 delay
Preset time can just respond the power on operation of user again, it is ensured that the temperature rise of preliminary filling resistance R is controlled in specification limit, reaches selection
The effect of small-power, Miniaturization Design preliminary filling resistance.
Fig. 8 is please referred to, Fig. 8 is judgment module in the 7th embodiment of the control system of power battery preliminary filling resistance of the present invention
The functional block diagram 103.Specifically, the battery management system BMS is also used to detect the temperature of the power battery V,
The control system includes:
Temperature acquisition module 41, the temperature for obtaining the power battery are the initial temperature of the preliminary filling resistance；
Temperature judgment module 42, for judging whether the initial temperature is more than preset first temperature value；
Second forbidden energy module 43, for when the initial temperature is more than preset first temperature value, then keeping the preliminary filling
Electrical relay K3 is in off-state, forbids being pre-charged；
Second enabled module 44, for when the initial temperature is no more than preset first temperature value, then allowing to be pre-charged.
Specifically, the present embodiment is to ensure that the vehicle passes through the temperature for obtaining the power battery before being initiated
Initial temperature for the preliminary filling resistance R judges whether the vehicle can be pre-charged, and ensure that the safety of preliminary filling electrical circuit.
Fig. 9 is please referred to, Fig. 9 is the functional module of the sixth embodiment of the control system of power battery preliminary filling resistance of the present invention
Schematic diagram.Specifically, the first judgment module 60 includes:
Electric current acquiring unit 61, the output electric current for obtaining the power battery V are the electric current in the preliminary filling circuit；
Charging time acquiring unit 62, for obtaining the precharge time of the capacitor；
Heat Calculation unit 63, for according to according to the electric current in the preliminary filling circuit, the precharge time of the capacitor and
The heat that preliminary filling resistance generates in the pre-charging time described in the computing the resistor value of the pre-charge resistance；
Temperature rise computing unit 64, for the preliminary filling resistance R according to the heat Calculation of the generation in the pre-charging time
Temperature rise；
Default closure number computing unit 65, for that can be born according to according to initial temperature, the maximum of the preliminary filling resistance
It is pre- in preset time that temperature and the preliminary filling resistance in the temperature rise of the pre-charging time calculate the pre-charge-relay
If being closed number；
Judging unit 66, for the default closure number according to the calculating judge the continuous closure number whether be more than
The default closure number.
Specifically, do not consider that the prepared pre-charge-relay K3 in the state of continuous open and close, is pre-charged
The temperature heat waste amount of R is hindered, with maximum value calculation, the temperature value that can be born according to the preliminary filling resistance R maximum and initial temperature,
And the temperature rise according to the preliminary filling resistance R in a pre-charge process, the pre-charge-relay K3 is calculated in preset time
Interior default closure number, and judge whether the continuous closure number is more than default according to the default closure number of the calculating
It is closed number.
Further, the present invention also provides a kind of computer readable storage medium, on the computer readable storage medium
It is stored with computer program, the computer program realizes any of the above-described power electric as described in the examples when being executed by processor
The step of control method of pond preliminary filling resistance.
In the description of this specification, reference term " embodiment ", " another embodiment ", " other embodiments " or
The description of " first embodiment ~ X embodiment " etc. means specific features described in conjunction with this embodiment or example, structure, material
Or feature is included at least one embodiment or example of the invention.In the present specification, to the schematic of above-mentioned term
Statement may not refer to the same embodiment or example.Moreover, description specific features, structure, material, method and step or
Feature can be combined in any suitable manner in any one or more of the embodiments or examples.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (8)
1. a kind of control method of the power battery preliminary filling resistance of vehicle, the vehicle include: power battery, main positive relay,
The anode of main negative relay, pre-charge-relay, preliminary filling resistance, battery management system and capacitor, the battery passes through the master
Positive relay connect with the first end of the capacitor, and the cathode of the battery passes through the of the negative relay of the master and the capacitor
The connection of two ends, the pre-charge-relay connect composition preliminary filling circuit, the preliminary filling circuit and the master with the preliminary filling resistance
Positive relay is in parallel, and the battery management system is used to control the disconnection and closure of the pre-charge-relay, which is characterized in that
The control method the following steps are included:
It is closed the negative relay of the master, is closed the pre-charge-relay, the preliminary filling is controlled by the battery management system
The capacitor charging is given in circuit；
Obtain continuous closure number of the pre-charge-relay in preset time；
Judge whether the continuous closure number is more than default closure number；
When the continuous closure number is more than default closure number, then keeps the pre-charge-relay in off-state, prohibit
Only it is pre-charged；
Judge whether the pre-charge-relay reaches default delay time in the duration of off-state；
Reach the default delay time when the duration that the pre-charge-relay is in off-state, responds the precharge
The operation of relay closure；
It is not up to the default delay time when the duration that the pre-charge-relay is in off-state, then keeps described pre-
Charge relay is in off-state, forbids being pre-charged；
The battery management system is also used to detect the output electric current of the power battery；
It is described to judge whether the continuous closure number is more than that default closure number further comprises the steps of:
The output electric current for obtaining the power battery is the electric current in the preliminary filling circuit；
Obtain the precharge time of the capacitor；
It is pre- according to the computing the resistor value of the electric current in the preliminary filling circuit, the precharge time of the capacitor and the preliminary filling resistance
The heat that charging resistance generates within the precharge time；
According to preliminary filling resistance described in the heat Calculation of the generation in the temperature rise of the precharge time；
According to the initial temperature of the preliminary filling resistance, maximum can bearing temperature and the preliminary filling resistance in the precharge time
Temperature rise calculate default closure number of the pre-charge-relay in preset time；
Judge whether the continuous closure number is more than default closure number according to the default closure number of the calculating.
2. the control method of power battery preliminary filling resistance as described in claim 1, which is characterized in that the judgement is described continuous
Whether closure number is more than that default closure number further comprises the steps of: later
When the continuous closure number is less than default closure number, then the operation of the pre-charge-relay closure is responded.
3. the control method of power battery preliminary filling resistance as described in claim 1, the battery management system are also used to detect
The temperature of the power battery, which is characterized in that the closure negative relay of master is closed the pre-charge-relay, leads to
It further includes before step that the preliminary filling circuit, which is crossed, to the capacitor charging step；
The temperature for obtaining the power battery is the initial temperature of the preliminary filling resistance；
Judge whether the initial temperature is more than preset first temperature value；
When the initial temperature is more than preset first temperature value, then keeps the pre-charge-relay in off-state, forbid
Precharge；
When the initial temperature is no more than preset first temperature value, then enters and be closed the negative relay of master, is closed described pre-
Charge relay, by the preliminary filling circuit give the capacitor charging the step of.
4. the control method of power battery preliminary filling resistance as described in claim 1, which is characterized in that the control method is also wrapped
Include step:
Obtain the continuous temperature rise of the preliminary filling resistance；
When the continuous temperature rise is more than preset second temperature value, then keeps the pre-charge-relay in off-state, forbid
Precharge；
When the current temperature of the preliminary filling resistance is dropped to no more than preset first temperature value, then the precharge relay is responded
The operation of device closure.
5. a kind of control system of the power battery preliminary filling resistance of vehicle, the vehicle include: power battery, main positive relay,
The anode of main negative relay, pre-charge-relay, preliminary filling resistance, battery management system and capacitor, the battery passes through the master
Positive relay connect with the first end of the capacitor, and the cathode of the battery passes through the of the negative relay of the master and the capacitor
The connection of two ends, the pre-charge-relay connect composition preliminary filling circuit, the preliminary filling circuit and the master with the preliminary filling resistance
Positive relay is in parallel, and the battery management system is used to control the disconnection and closure of the pre-charge-relay, which is characterized in that
The control system includes:
It is closed module and the pre-charge-relay is closed, by the preliminary filling circuit to institute for being closed the negative relay of the master
State capacitor charging；
Accumulator module, for obtaining continuous closure number of the pre-charge-relay in preset time；
First judgment module, for judging whether the continuous closure number is more than default closure number；
Second judgment module, for judging whether the pre-charge-relay reaches default delay in the duration of off-state
Time；
First forbidden energy module, for when the continuous closure number is more than default closure number and the pre-charge-relay is in
The duration of off-state is not up to the default delay time, then keeps the pre-charge-relay in default delay time
Interior is in off-state, forbids being pre-charged;
First enabled module, for when the continuous closure number is less than default closure number or the pre-charge-relay
Reach the default delay time in the duration of off-state, then responds the operation of the pre-charge-relay closure；
The battery management system is also used to detect the output electric current of the power battery；
The first judgment module includes:
Electric current acquiring unit, the output electric current for obtaining the power battery are the electric current in the preliminary filling circuit；
Charging time acquiring unit, for obtaining the precharge time of the capacitor；
Heat Calculation unit, for according to the electric current in the preliminary filling circuit, the precharge time of the capacitor and the precharge
The heat that preliminary filling resistance generates within the precharge time described in the computing the resistor value of resistance；
Temperature rise computing unit, for the preliminary filling resistance according to the heat Calculation of the generation in the temperature of the precharge time
It rises；
Default closure number computing unit, for can bearing temperature and institute according to initial temperature, the maximum of the preliminary filling resistance
It states temperature rise of the preliminary filling resistance in the precharge time and calculates the pre-charge-relay default closure in preset time time
Number；
Judging unit judges whether the continuous closure number is more than described pre- for the default closure number according to the calculating
If being closed number.
6. the control system of the power battery preliminary filling resistance of vehicle as claimed in claim 5, the battery management system are also used
In the temperature for detecting the power battery, which is characterized in that the control system further include:
Temperature acquisition module, the temperature for obtaining the power battery are the initial temperature of the preliminary filling resistance；
Temperature judgment module, for judging whether the initial temperature is more than preset first temperature value；
Second forbidden energy module, for when the initial temperature is more than preset first temperature value, then keeping the precharge relay
Device is in off-state, forbids being pre-charged；
Second enabled module, for when the initial temperature is no more than preset first temperature value, then allowing to be pre-charged.
7. a kind of vehicle, which is characterized in that including power battery, main positive relay, main negative relay, pre-charge-relay, pre-
Charge resistance, battery management system, capacitor and load, the anode of the battery pass through the positive relay of the master and the capacitor the
One end connection, the cathode of the battery connect by the negative relay of the master with the second end of the capacitor, it is described be pre-charged after
Electric appliance connect composition preliminary filling circuit with the preliminary filling resistance, and the preliminary filling circuit is in parallel with the positive relay of the master, the load
In parallel with the capacitor, the load includes electric machine controller and high tension apparatus, and the vehicle further includes power battery precharge
The control system of resistance, the control system include processor, memory and storage on a memory and can transport on a processor
Capable computer program, the processor are realized when executing the computer program as of any of claims 1-4
The step of power battery preliminary filling resistance control method of vehicle.
8. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, the computer program realize the power battery of vehicle of any of claims 1-4 when being executed by processor
The step of preliminary filling resistance control method.
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| CN109004719B (en) * | 2018-08-27 | 2022-04-22 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal pre-charging control method and device, computer equipment and storage medium |
| CN108839568B (en) * | 2018-09-07 | 2024-02-23 | 珠海银隆电器有限公司 | Electric automobile pre-charge control method and device |
| CN109624786B (en) * | 2018-12-29 | 2021-08-20 | 蜂巢能源科技有限公司 | Power battery pre-charging resistor protection control method |
| CN110406425B (en) * | 2019-07-26 | 2023-12-19 | 河南美力达汽车有限公司 | Discharging and pre-charging control method for power battery |
| CN110588352B (en) * | 2019-09-27 | 2021-08-24 | 中植一客成都汽车有限公司 | Pre-charging protection circuit and method for vehicle-mounted hydrogen fuel cell and electric vehicle |
| CN111916852A (en) * | 2020-07-10 | 2020-11-10 | 广州小鹏汽车制造有限公司 | Power battery system capacitor pre-charging circuit and method, vehicle and storage medium |
| CN111890935B (en) * | 2020-07-16 | 2021-11-23 | 北京汽车股份有限公司 | Pre-charging control method, control circuit and electric vehicle |
| CN112366775B (en) * | 2020-11-04 | 2023-10-20 | 潍柴动力股份有限公司 | Pre-charging device, pre-charging system, electric automobile and pre-charging control method |
| CN113071315B (en) * | 2021-03-10 | 2022-10-11 | 重庆长安汽车股份有限公司 | Method and system for detecting connection integrity of high-voltage electrical system of electric automobile |
| CN113733916B (en) * | 2021-10-20 | 2023-10-31 | 广州小鹏汽车科技有限公司 | High-voltage power-on method and electric automobile |
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