CN108016312A - The high-pressure system and control method of a kind of new-energy automobile - Google Patents

The high-pressure system and control method of a kind of new-energy automobile Download PDF

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Publication number
CN108016312A
CN108016312A CN201711237092.5A CN201711237092A CN108016312A CN 108016312 A CN108016312 A CN 108016312A CN 201711237092 A CN201711237092 A CN 201711237092A CN 108016312 A CN108016312 A CN 108016312A
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CN
China
Prior art keywords
relay
voltage
power battery
master
power
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.)
Pending
Application number
CN201711237092.5A
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Chinese (zh)
Inventor
李延定
钱三平
王崇弟
邱琳
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201711237092.5A priority Critical patent/CN108016312A/en
Publication of CN108016312A publication Critical patent/CN108016312A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L1/00Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

The present invention provides a kind of high-pressure system and control method of new-energy automobile, wherein, high-pressure system includes:Power battery;Quick charger;Fast charge relay, is connected with the power battery and the quick charger respectively;The positive relay of master that is connected with the cathode of the power battery and bear relay with the master that the anode of the power battery is connected;It is connected to the positive relay of the master and the master bears electric machine between relay, the electric machine includes motor;What is be connected with the positive relay of the master uses electrical relay, and is connected in parallel on high voltage electric equipment and the Vehicular charger born with electrical relay and the master between relay.High voltage equipment is divided into three categories by the present invention, is controlled respectively with three relays, and independently of each other, the association between three major types high voltage equipment influences to be reduced to minimum.

Description

The high-pressure system and control method of a kind of new-energy automobile
Technical field
The present invention relates to the high-pressure system and controlling party of technical field of new energy, more particularly to a kind of new-energy automobile Method.
Background technology
The problems such as with environmental degradation, greenhouse effects and lack of energy, is increasingly serious, and people increasingly pay close attention to new energy Development.And the daily traffic trip of people, and can't do without automobile, under this background, new-energy automobile increasingly by people it is of interest with Receive.
There are many high voltage components on new-energy automobile, these high voltage components are divided by operating mode, including are charged and discharged;It is different Under working condition, there is different high voltage components to work.Thus can one high-pressure control device of demand, to adjust and control The distribution of component working and control power supply under different operating modes.
The content of the invention
The technical problems to be solved by the invention are, there is provided the high-pressure system and control method of a kind of new-energy automobile, It can adjust and control the high voltage equipment under different operating modes to work, while meet vehicle operation demand, ensure that vehicle safety can Lean on.
In order to solve the above technical problem, the present invention provides a kind of high-pressure system of new-energy automobile, including:
Power battery, for exporting high-voltage electricity;
Quick charger, for carrying out quick charge using extraneous high-voltage electricity for the power battery;
Fast charge relay, is connected with the power battery and the quick charger respectively, for being controlled by disconnecting and closing Make the fast charge circuit of the power battery;
The positive relay of master that is connected with the cathode of the power battery and with the master that the anode of the power battery is connected bear after Electric appliance;
It is connected to the positive relay of the master and the master bears electric machine between relay, the electric machine includes electronic Machine, for using the high-voltage electricity that the power battery provides to provide driving power for vehicle;
What is be connected with the positive relay of the master uses electrical relay, and is connected in parallel on and described bears relay with electrical relay and the master Between high voltage electric equipment and Vehicular charger, it is described with electrical relay be used for the high pressure is controlled by disconnecting and closing The high voltage supply circuit of electrical equipment, the Vehicular charger are used to carry out at a slow speed for the power battery using extraneous high-voltage electricity Charging.
Wherein, the high-pressure system further includes preliminary filling relay, is connected in parallel on the positive relay both ends of the master, for by disconnected Open and close are closed to control the preliminary filling circuit of the power battery, and the preliminary filling relay is also associated with preliminary filling resistance, for being classified Raise the output voltage of the power battery.
Wherein, the high voltage electric equipment includes following any or any combination:
Direct-flow inverter, the high-voltage electricity for the power battery to be provided are converted into low-voltage DC, are vehicle low pressure electricity consumption Equipment provides power supply;
Coolant heater, for the coolant heating for the power battery;
Air-conditioning heater, for participating in air-conditioning heating process, makes air-conditioning blow out hot wind;
Compressor of air conditioner, for participating in air conditioner refrigerating process, makes air-conditioning blowing cold air, while to cold in the cooling circuit of air-conditioning But liquid freezes.
Wherein, under trickle charge operating mode, the fast charge relay remains off, under fast charge operating mode, the trickle charge after Electric appliance remains off.
Wherein, under trickle charge or fast charge operating mode, the electric machine is in idle condition.
The present invention also provides a kind of control method of the high-pressure system of new-energy automobile, the high-pressure system includes:Power Battery;Quick charger;The fast charge relay being connected respectively with the power battery and the quick charger;With the power The positive relay of master and bear relay with the master that the anode of the power battery is connected that the cathode of battery is connected;It is connected to described Main positive relay and the master bear the electric machine between relay, and the electric machine includes motor;With the master just after What electric appliance was connected uses electrical relay, and is connected in parallel on and described bear the high voltage electric between relay with electrical relay and the master and set Standby and Vehicular charger, the control method include:According to the operating mode of execution, by disconnect and close the fast charge relay come Control the connection of the quick charger and the power battery, or by disconnecting and closing the positive relay of the master and described Control the connection of the high voltage electric equipment and the power battery with electrical relay, and the Vehicular charger with it is described The connection of power battery.
Wherein, in execution during high-voltage electricity operating mode, closure electrical relay, preliminary filling relay and master bear relay first, make High voltage electric equipment terminal voltage is lifted to first voltage by 0V;Then the main positive relay of closure, makes high voltage electric equipment terminal voltage Second voltage is lifted to by first voltage;After high voltage electric equipment end voltage stabilization is in second voltage, preliminary filling relay is disconnected Device;When performing lower high-voltage electricity operating mode, high voltage electric equipment is reduced electric power to outage threshold, disconnect with electrical relay, master Positive relay and main negative relay.
Wherein, when performing comfortable part fault condition, the electric power of high voltage electric equipment is reduced to outage threshold, then disconnect With electrical relay, main positive relay and main negative relay closure are kept, control electric machine continues as vehicle and provides driving force.
Wherein, when performing trickle charge heating cycle, the upper high-voltage electricity operating mode is first carried out, then in high voltage electric equipment Direct-flow inverter and coolant heater are started to work, and are heated for power battery, reclose main positive relay, and Vehicular charger is opened Beginning work, be power battery charging and be direct-flow inverter and coolant heater power supply;It is first when exiting trickle charge heating cycle First high voltage electric equipment electric power is reduced until electric current is 0A;Then charge power is reduced until electric current is 0A, and stopping is vehicle-mounted Charger works, then disconnects with electrical relay, main positive relay and main negative relay.
Wherein, when performing trickle charge insulation operating mode, the trickle charge heating cycle is adopted as heir, is then turned off with electrical relay, master just Relay and main negative relay, stop the trickle charge to power battery, are heated by Vehicular charger for direct-flow inverter and coolant Device provides electric energy, maintains the temperature of power battery;When exiting trickle charge insulation operating mode, high voltage electric equipment electric power is reduced first Until electric current is 0A, then stop Vehicular charger work, then disconnect with electrical relay, main positive relay and main negative relay.
Wherein, when performing trickle charge fast-refrigerating operating mode, trickle charge operating mode is initially entered, then judges whether to need quickly to make It is cold, if so, then making the electric power of high voltage electric equipment remain zero;Then preliminary filling relay is closed, with electrical relay and master Negative relay, makes high voltage electric equipment terminal voltage be lifted to first voltage by 0V;Main positive relay is reclosed, sets high voltage electric Standby terminal voltage is lifted to second voltage by first voltage;High voltage electric equipment end voltage stabilization is treated after second voltage, is disconnected Preliminary filling relay;Direct-flow inverter, air-conditioning heater and compressor of air conditioner send power request start-up operation, are quickly made It is cold;The flow for exiting trickle charge fast-refrigerating operating mode is identical with the flow for exiting trickle charge heating cycle.
Wherein, when performing fast charge heating cycle, the upper high-voltage electricity operating mode is first carried out, then in high voltage electric equipment Direct-flow inverter and coolant heater are started to work, and are heated for power battery, are reclosed fast charge relay, quick charger is opened Beginning work, be power battery charging and be direct-flow inverter and coolant heater power supply;It is first when exiting fast charge heating cycle First high voltage electric equipment electric power is reduced until electric current is 0A, then is disconnected with electrical relay, main positive relay;Then reduce and fill Until electric current is 0A, stopping quick charger working electrical power, then disconnects fast charge relay and main negative relay.
Wherein, when performing fast charge fast-refrigerating operating mode, fast charge operating mode is initially entered, then judges whether to need quickly to make It is cold, if so, then making the electric power of high voltage electric equipment remain zero;Then closure uses electrical relay, preliminary filling relay and master Negative relay, makes high voltage electric equipment terminal voltage be lifted to first voltage by 0V;Main positive relay is reclosed, sets high voltage electric Standby terminal voltage is lifted to second voltage by first voltage;High voltage electric equipment end voltage stabilization is treated after second voltage, is disconnected Preliminary filling relay;Direct-flow inverter, air-conditioning heater and compressor of air conditioner send power request start-up operation, are quickly made It is cold;The flow for exiting fast charge fast-refrigerating operating mode is identical with the flow for exiting fast charge heating cycle.
The beneficial effect of the embodiment of the present invention is:High voltage equipment is divided into three categories, respectively with three relay controls System, independently of each other.Certain a kind of failure, can individually disconnect its controlled relay of institute, work without influencing other high voltage equipments, and three The association of class high voltage equipment influences to be reduced to minimum, and especially charging equipment is separated with electrical equipment, will be reduced as far as The two influencing each other and contacting, and after ensureing a certain functional component failure, other functional components are unaffected or influence smaller;It hurry up Fill device is individually controlled by fast charge relay, is controlled when its failure by fast charge relay, on other electrical equipments without influence; The heat insulation function component such as trickle charge equipment and high voltage electric equipment is placed on in all the way, to battery system when can effectively reduce insulation Overcharge influence, individually into a minor loop when making insulation, miscellaneous part is not had an impact;Consider that Vehicular charger is reversible To by consuming cell system voltage, 220V household voltages are externally provided, also possesses high voltage electric device attribute, vehicle is owned High voltage electric equipment is attributed to one kind, is controlled by same high-voltage relay, it may have reasonability, it is real with policing feature easy to control It is existing;Electric machine is separated as driving traveling part with comfortable part and charging unit, can when comfortable part failure or charging unit failure To isolate failure part by disconnecting corresponding relay, and it is unlikely to influence electric machine, maintains vehicle to the full extent Driveability, vehicle, which occurs, high voltage component failure in this in the process of moving has very big advantage, is ensureing vehicle driving There is great role in mobility.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of composition schematic diagram of the high-pressure system of one new-energy automobile of the embodiment of the present invention.
Fig. 2 is the current direction schematic diagram under upper high-voltage electricity operating mode in the embodiment of the present invention one.
Fig. 3 is the current direction schematic diagram under comfortable part fault condition in the embodiment of the present invention one.
Fig. 4 is the current direction schematic diagram under trickle charge operating mode in the embodiment of the present invention one.
Fig. 5 is the current direction schematic diagram under trickle charge heating cycle in the embodiment of the present invention one.
Fig. 6 is to keep the temperature the current direction schematic diagram under operating mode in trickle charge in the embodiment of the present invention one.
Fig. 7 is the current direction schematic diagram under trickle charge fast-refrigerating operating mode in the embodiment of the present invention one.
Fig. 8 is the current direction schematic diagram under fast charge operating mode in the embodiment of the present invention one.
Fig. 9 is the current direction schematic diagram under fast charge heating cycle in the embodiment of the present invention one.
Figure 10 is the current direction schematic diagram under fast charge fast-refrigerating operating mode in the embodiment of the present invention one.
Embodiment
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
Refer to shown in Fig. 1, the embodiment of the present invention one provides a kind of high-pressure system of new-energy automobile, including:
Power battery 4, for exporting high-voltage electricity;
Quick charger 2, for carrying out quick charge using extraneous high-voltage electricity for the power battery 4;
Fast charge relay 12, is connected with the power battery 4 and the quick charger 2, for by disconnecting and closing respectively To control the fast charge circuit of the power battery 4;
The positive relay 13 of master being connected with the cathode of the power battery 4 and the master being connected with the anode of the power battery 4 Negative relay 14;
It is connected to the positive relay 13 of the master and the master bears electric machine 5 between relay 14, the electric machine 5 includes Motor, for using the high-voltage electricity that the power battery 4 provides to provide driving power for vehicle;
What relay 13 positive with the master was connected uses electrical relay 17, and is connected in parallel on and described is born with electrical relay 17 and the master High voltage electric equipment 3 and Vehicular charger 1 between relay 14, it is described to be used to control by disconnecting and closing with electrical relay The high voltage supply circuit of the high voltage electric equipment 3 is made, it is the power that the Vehicular charger 1, which is used for using extraneous high-voltage electricity, Battery 4 is charged at a slow speed.
The embodiment of the present invention is controlled the high-tension apparatus category in new-energy automobile by corresponding relay respectively, will be closed Connection influence is preferably minimized, certain a kind of high-tension apparatus breaks down, and can individually disconnect corresponding relay without influencing other high pressures Equipment works, and especially fast fill device is separated with high voltage electric equipment, will be reduced as far as influencing each other and contacting for the two.
Further, the present embodiment further includes preliminary filling relay 15, positive 13 both ends of relay of the master is connected in parallel on, for leading to Cross and disconnect and close to control the preliminary filling circuit of the power battery 4.The preliminary filling relay 15 is also associated with preliminary filling resistance 16, The output voltage of the power battery 4 is raised for being classified.Assuming that the High voltage output voltage of power battery 4 is second voltage U2, When wanting closing relay, preliminary filling relay 15 and main negative relay 14 are first closed, voltage is first raised to first voltage U1(U1< U2), main positive relay 13 is reclosed, voltage is raised to second voltage U2 by first voltage U1, so as to avoid voltage direct by 0V U2 is raised to, damages electrical equipment.
In the present embodiment, high voltage electric equipment 3 includes following any or any combination:
Direct-flow inverter(DCDC), the high-voltage electricity for the power battery 4 to be provided is converted into low-voltage DC, is that vehicle is low Press electrical equipment to provide power supply, including charge for vehicle 12V batteries;
Coolant heater(HVH), for the coolant heating for the power battery 4, so as to ensure that power battery 4 is in suitable Under suitable temperature environment;
Air-conditioning heater(PTC), for participating in air-conditioning heating process, air-conditioning is blown out hot wind, so as to adjust passenger cabin environment Temperature;
Compressor of air conditioner(ECP), for participating in air conditioner refrigerating process, enable air-conditioning blowing cold air, so as to adjust passenger cabin environment Temperature;Freeze at the same time to the coolant in the cooling circuit of air-conditioning.Since the coolant in air-conditioning cooling circuit can be with moving Coolant in the cooling circuit of power battery 4 exchanges so that ECP adjusts the coolant temperature of power battery 4, and then adjusts dynamic The temperature of power battery 4, makes power battery 4 keep suitable temperature, especially needs to carry out fast-refrigerating in the overheat of power battery 4 When, ECP will play an important role.
Below in conjunction with Fig. 2-Figure 10 respectively to the high-pressure system of new-energy automobile of the embodiment of the present invention under different operating modes Control mode is specifically described.Wherein, each relay icon shown in Fig. 2-Figure 10 is used to represent each relay in the present invention Position and connection relation in embodiment high-pressure system, are not offered as being opened or closed in the case where performing or closing corresponding operating mode State.
Firstly the need of explanation, in the present embodiment, either mechanical key starts or starts without key, key gear Include key off gears, ACC gears, key on gears, key start(Or it is called Ready)Gear.
In addition, the charging operating mode described in the present embodiment includes trickle charge operating mode and fast charge operating mode, when trickle charge is charged, do not allow to close Fast charge relay 12 is closed, reason is:(1)Prevent electrical potential difference, burn 2 charging ports;(2)Prevent charging current mistake Greatly, battery is burnt.Similarly, when fast charge charges, also do not allow to close trickle charge relay 11.
When key gear is in Ready states, vehicle upper high pressure, and be in wheeled state, therefore during charging not Ready states can be entered.
Electric machine DCU is not allowed also to work under charging operating mode(In idle condition), reason is that charging wire is also at this time It is connected on vehicle, prevents electric machine DCU to be misused, vehicle pulls charging wire traveling, brings security risk.
1st, high pressure power-on and power-off
It refer to shown in Fig. 2, during upper high-voltage electricity, key gear is from key off to key on, into Ready states:
Closure uses electrical relay 17 first, recloses preliminary filling relay 15 and main negative relay 14,3 terminal voltage of high voltage electric equipment First voltage U1 is lifted to by 0V;--- preliminary filling relay is --- with electrical relay --- high voltage electric equipment --- for power battery Main negative relay --- power battery forms preliminary filling circuit;
Then the main positive relay 13 of closure, 3 terminal voltage of high voltage electric equipment are lifted to second voltage U2 by first voltage U1;
After 3 terminal voltage stabilization of high voltage electric equipment is in second voltage U2, preliminary filling relay 15 can be disconnected.
Current direction at this time is as denoted by the arrows in fig. 2.
In lower high-voltage electricity, vehicle is in Ready states, and key gear is by key on to key off, electricity consumption relay at this time Device 17, main positive relay 13 and main negative relay 14 have closed, other relays disconnect;High voltage electric equipment 3 first reduces load, Electric power is reduced, when electric power is reduced to outage threshold P0, first disconnects and uses electrical relay 17, then disconnect main positive relay 13 power with main negative relay 14, cutoff high electricity.
In the present embodiment, by high voltage electric equipment 3(DCDC、HVH、PTC、ECP)Comfortable part is classified as, i.e., these components are used for Ensure vehicle comfort property, if breaking down, vehicle traveling still has driveability.Specifically, when these comfortable parts occur During failure, vehicle has completed high-voltage electricity, in traveling or power battery discharge condition, reduces high voltage electric equipment first at this time 3 electric power is then turned off using electrical relay 17, keeps main positive relay 13 and main negative relay 14 to close to outage threshold P1 Close, electric machine 5(DCU)It can still work normally, driving force is provided for vehicle.Current direction is as indicated by the arrows in fig. 3 at this time.
2nd, trickle charge
As shown in figure 4, key gear, under key off states, all relays are in off-state, by Vehicular charger 1 Connect, Vehicular charger 1 can be opened or stop charging, and the charge power of control trickle charge, then closure electrical relay 17th, main positive relay 13 and main negative relay 14, Vehicular charger 1 are started to work, trickle charge circuit(Vehicular charger --- electricity consumption --- --- Vehicular charger forms trickle charge circuit to power battery --- main negative relay --- to main positive relay to relay)In have High-tension current, as shown by the arrows in Figure 4, trickle charge charging starts current direction, and the output voltage of power battery 4 can be raised at this time Second voltage U2.As it was previously stated, charging voltage is all slow lifting, component will not be damaged because output voltage lifting is too fast.
Need, when key off gears stop trickle charge, to reduce the charge power of Vehicular charger 1 first, make trickle charge circuit In charging current be reduced to 0A;It is then turned off with electrical relay 17, main positive relay 13 and main negative relay 14, cut-out trickle charge Circuit.
Key gear can also carry out trickle charge under key on states, at this time can be in the car using amusement audio-video system, instrument The components such as table can also work normally, but cannot be introduced into Ready states.Just allow high-voltage electricity, key in Ready states Not upper high pressure under on states, i.e., main positive relay 13, main negative relay 14 are off, until key gear is in Ready states, main positive relay 13 and main negative relay 14 just close.
The unlatching of trickle charge and stopping flow and the unlatching and stopping of trickle charge under foregoing key off gears are flowed under Key on gears Cheng Xiangtong, details are not described herein again.
Due to duty requirements during trickle charge, the demand of heating is had.During trickle charge, by allowing direct-flow inverter(DCDC)And cooling Liquid heater(HVH)Work, so as to be heated to power battery 4, keep power battery 4 to be in convenient temperature, with Keep battery cell performance.The performance of battery cell is understood variation with temperature and is changed, when especially temperature is relatively low, battery cell Performance can become very poor, in addition can not charge or discharge, power battery 4 is carried out heating make battery cell be in conveniently temperature Degree, keeps its performance, realizes reliable and stable charge function.The temperature point threshold that power battery 4 discharges is less than charging temperature point Threshold value, when environment temperature is less than the discharge temp point threshold value, power battery 4 can be damaged, can not worked normally.
Under trickle charge heating cycle, Vehicular charger 1 is connected first, is prepared for charging;Then upper high-voltage electricity is performed Flow:Closure electrical relay 17, preliminary filling relay 15 and main negative relay 14,3 voltage of high voltage electric equipment are lifted to by 0V First voltage U1;Main positive relay 13 is reclosed, 3 terminal voltage of high voltage electric equipment is lifted to second voltage by first voltage U1 U2;After 3 terminal voltage stabilization of high voltage electric equipment is in second voltage U2, preliminary filling relay 15 can be disconnected.Power battery 4 at this time Start externally electric discharge, high voltage electric equipment DCDC and HVH start to work, and are heated for power battery 4.
When needing trickle charge, Vehicular charger 1 is started to work, for the charging of power battery 4 and high voltage electric equipment DCDC, HVH Power supply(It can proceed with work to maintain the temperature of power battery 4), at this time power battery 4 stop externally discharging.Above-mentioned work Current direction under condition is as illustrated by arrows 5.
When needing to close heating and stop charging, high voltage electric equipment is set to reduce power first until electric current is 0A;Then The charge power of power battery 4 is reduced until electric current is 0A, stopping Vehicular charger 1 works, then disconnects with electrical relay 17, master Positive relay 13 and main negative relay 14.
When environment temperature is relatively low, and after power battery 4 is fully charged, some situations may require that into holding mode.Such as:Slowly It is longer to fill the charging interval, often has and is all remained attached to whole night in charge condition, electricity full of rear charging wire on Vehicular charger 1, is Recharge and provide certain condition;And environment temperature is relatively low, to ensure that user intact can use car second day early morning, vehicle is kept Compared with dominance energy, vehicle can be made to be in holding mode, keep power battery 4 that there is preferably discharge performance.
When trickle charge insulation operating mode is opened, the electricity of power battery 4 is just full of, the intact connection of charging equipment, is adopted as heir foregoing slow Heating cycle is filled, is then turned off bearing relay 14 with electrical relay 17, main positive relay 13 and master, stops to power battery 4 Charging(Power battery, which after being full of overcharge, can damage battery), Vehicular charger 1 provides for high voltage electric equipment DCDC, HVH Electric energy, maintains its work, keeps power battery 4 to be in preference temperature.Current direction such as the arrow institute in Fig. 6 under above-mentioned operating mode Show.
Such as need close holding mode, equally first reduce high voltage electric plant capacity until electric current be 0A, then stop car Carry charger 1 to work, then disconnect with electrical relay 17, main positive relay 13 and main negative relay 14.
Due to duty requirements during trickle charge, the demand of fast-refrigerating is had.Fast-refrigerating needs air-conditioning in the embodiment of the present invention Compressor of air conditioner ECP and air-conditioning heater PTC participate in work, while also need to DCDC participate in work.
As it was previously stated, the performance of battery cell is understood variation with temperature and is changed, and when especially temperature is higher, battery cell It may overheat and battery cell performance is affected, overheat is serious even to cause battery catches fire, have security risk.And Power battery 4 can produce amount of heat in charging, and battery cell temperature can rise or even overheat, just need to power at this time Battery 4 radiates, and a kind of mode of quick heat radiating is to battery fast-refrigerating.
When opening fast-refrigerating, trickle charge operating mode is initially entered, then judges whether to need fast-refrigerating, if so, then making height Press electrical equipment 3(DCU, DCDC, HVH, PTC, ECP etc.)Electric power remain zero;Then close preliminary filling relay 15, use Electrical relay 17 and main negative relay 14,3 terminal voltage of high voltage electric equipment are lifted to U1 by 0V;Main positive relay 13 is reclosed, 3 terminal voltage of high voltage electric equipment is lifted to U2 by U1;Treat that 3 terminal voltage stabilization of high voltage electric equipment after U2, can disconnect preliminary filling Relay 15.DCDC, PTC, ECP send power request start-up operation at this time, realize fast-refrigerating function.Electricity under above-mentioned operating mode Stream flow direction is as depicted by the arrows in figure 7.
Flow when needing to close fast-refrigerating is with closing stream when heating and stopping charging under foregoing trickle charge heating cycle Cheng Xiangtong, details are not described herein again.
3rd, fast charge
When key gear is in key off states, all relays are in off-state, and quick charger 2 is connected, electricity Pond management system(BMS)It can open or stop charging, and the charge power of control fast charge;Then 12 He of fast charge relay is closed Main negative relay 14.Do not allow also to charge at this time, so fast charge not yet starts, fast charge circuit(Quick charger --- fast charge after --- quick charger forms fast charge circuit to power battery --- main negative relay --- to electric appliance)In there is no high-tension current.Afterwards, BMS starts to work, and has high-tension current in fast charge circuit, as shown by the arrows in Figure 8, fast charge charging starts current direction, moves at this time Power battery terminal voltage can slowly be raised to U2.
Need, when key off gears stop fast charge, to reduce the charge power of quick charger 2 first, make fast charge circuit In charging current be reduced to 0A;It is then turned off fast charge relay 12 and main negative relay 14, cut-out fast charge circuit.
Key gear can also carry out fast charge under key on states, under key on states, main positive relay 13 and main negative Relay 14 is in off-state.It is similar to foregoing trickle charge, the unlatching of fast charge and stopping flow and key under key on gears The unlatching of fast charge is identical with stopping flow under off gears, and details are not described herein again.
Due to duty requirements during fast charge, the demand of heating is had.Before unlatching, each relay is in off-state.First Quick charger 2 is connected, is prepared for charging;Then upper high-voltage electricity flow is performed:Closure electrical relay 17, preliminary filling after Electric appliance 15 and main negative relay 14,3 voltage of high voltage electric equipment are lifted to first voltage U1 by 0V;Reclose main positive relay 13,3 terminal voltage of high voltage electric equipment is lifted to second voltage U2 by first voltage U1;When 3 terminal voltage of high voltage electric equipment is stablized After second voltage U2, preliminary filling relay 15 can be disconnected.Power battery 4 starts externally to discharge at this time, high voltage electric equipment DCDC and HVH starts to work, and is heated for power battery 4.
When needing fast charge, closure fast charge relay 12, quick charger 2 is started to work, and is charged for power battery 4 and high pressure Electrical equipment DCDC, HVH is powered(It can proceed with work to maintain the temperature of power battery 4), at this time power battery 4 stop Externally electric discharge.
Current direction under above-mentioned operating mode is as shown in the arrow in Fig. 9.
When needing to close heating and stop charging, high voltage electric equipment is set to reduce power first until electric current is 0A, then is broken Open with electrical relay 17, main positive relay 13;Then the charge power of power battery 4 is reduced until electric current is 0A, and stopping is quick Charger 2 works, then disconnects fast charge relay 12 and main negative relay 14.
It is different from trickle charge, without holding mode under fast charge.
Due to duty requirements during fast charge, the demand of fast-refrigerating is had.Fast-refrigerating needs air-conditioning in the embodiment of the present invention Compressor of air conditioner ECP and air-conditioning heater PTC participate in work, while also need to DCDC participate in work.
When opening fast-refrigerating, fast charge operating mode is initially entered, then judges whether to need fast-refrigerating, if so, then making electricity Machine device 5, high voltage electric equipment 3(AC-CHR, DCDC, HVH, PTC, ECP etc.)Electric power remain zero;Then closure is used Electrical relay 17, preliminary filling relay 15 and main negative relay 14,3 terminal voltage of high voltage electric equipment are lifted to U1 by 0V;Reclose Main positive relay 13,3 terminal voltage of high voltage electric equipment are lifted to U2 by U1;Treat 3 terminal voltage stabilization of high voltage electric equipment U2 it Afterwards, preliminary filling relay 15 can be disconnected.DCDC, PTC, ECP send power request start-up operation at this time, realize fast-refrigerating function. Current direction under above-mentioned operating mode is as indicated by the arrows in figure 10.
Flow when needing to close fast-refrigerating is with closing stream when heating and stopping charging under foregoing fast charge heating cycle Cheng Xiangtong, details are not described herein again.
According to the above description, that high voltage equipment is divided into three is big for the high-pressure system of new-energy automobile of the embodiment of the present invention Class controls respectively, i.e.,:One kind is high voltage electric equipment(Such as DCDC, HVH, PTC, ECP etc.)With trickle charge equipment(Vehicular charger 1), one kind be fast fill device(Quick charger 2), one kind be electric machine, be classified as driving traveling part.High voltage electric equipment is classified as Comfortable part, i.e. these components are used to ensure vehicle comfort property, if breaking down, vehicle traveling still has driveability.It is dynamic Power battery 4 is energy storage and output center, is not attributed to above-mentioned three kind equipment.Three classes high voltage equipment, respectively with three relays Device controls, independently of each other.Certain a kind of failure, can individually disconnect its controlled relay of institute, without influencing other high voltage equipment works Make, such as quick charger 2 breaks down, then disconnects fast charge relay 11, the driving on motor is almost without influence, other high pressures Electric equipment may continue to work.Connected between each high voltage electric equipment using parallel way, to reduce shadow during failure to each other Ring, this kind classification control mode has the advantage that:(1)Fast charge equipment is individually controlled by fast charge relay, is led to when its failure The control of fast charge relay is crossed, on other electrical equipments without influence;(2)Trickle charge apparatus(Vehicular charger)With HVH, DCDC etc. Heat insulation function component is placed on in all the way, and overcharge when can effectively reduce insulation on battery system influences, single when making insulation A minor loop is alone become, miscellaneous part is not had an impact;(3)Consider that Vehicular charger also possesses external discharge configuration model (Vehicular charger can externally provide 220V household voltages inversely by consuming cell system voltage, be used for family expenses electric equipment, During such as outdoor camping, there is provided the voltage such as barbecue, notebook, illumination), Vehicular charger also possesses high voltage electric device attribute, will All high voltage electric equipment of vehicle are attributed to one kind, are controlled by same high-voltage relay, it may have reasonability, easy to control and plan Slightly function is realized;Trickle charge equipment is also attributable to comfortable part;(4)Electric machine is as driving traveling part and comfortable part and charging unit Separation, when comfortable part failure or charging unit failure(Such as power is crossed to put and causes punch through, is out of control), can by disconnect accordingly after Electric appliance isolates failure part, and is unlikely to influence electric machine, maintains vehicle driveability to the full extent, this is to vehicle High voltage component failure occurs in the process of moving has very big advantage, has on vehicle driving maneuver performance is ensured very big Effect.
Corresponding to the embodiment of the present invention one, the embodiment of the present invention two provides a kind of control of the high-pressure system of new-energy automobile Method, the high-pressure system include:Power battery;Quick charger;Respectively with the power battery and the quick charger Connected fast charge relay;The positive relay of master being connected with the cathode of the power battery and the anode with the power battery Connected master bears relay;It is connected to the positive relay of the master and the master bears electric machine between relay, the motor Device includes motor;What is be connected with the positive relay of the master uses electrical relay, and is connected in parallel on electrical relay and the institute Stating the high voltage electric equipment between main negative relay and Vehicular charger, the control method includes:According to the operating mode of execution, lead to Cross and disconnect and close the fast charge relay to control the connection of the quick charger and the power battery, or by disconnected Open and close close the positive relay of the master and described the high voltage electric equipment and the power battery are controlled with electrical relay Connection, and the connection of the Vehicular charger and the power battery.
Wherein, in execution during high-voltage electricity operating mode, closure electrical relay, preliminary filling relay and master bear relay first, make High voltage electric equipment terminal voltage is lifted to first voltage by 0V;Then the main positive relay of closure, makes high voltage electric equipment terminal voltage Second voltage is lifted to by first voltage;After high voltage electric equipment end voltage stabilization is in second voltage, preliminary filling relay is disconnected Device;When performing lower high-voltage electricity operating mode, high voltage electric equipment is reduced electric power to outage threshold, disconnect with electrical relay, master Positive relay and main negative relay.
Wherein, under key gear is in key off states or key on states perform trickle charge operating mode when, closure electricity consumption after Electric appliance, main positive relay and main negative relay, Vehicular charger are started to work, and trickle charge is carried out to power battery;Exit trickle charge work During condition, reduce the charge power of Vehicular charger first until charging current is reduced to 0A, be then turned off with electrical relay, it is main just Relay and main negative relay.
Wherein, when performing comfortable part fault condition, the electric power of high voltage electric equipment is reduced to outage threshold, then disconnect With electrical relay, main positive relay and main negative relay closure are kept, control electric machine continues as vehicle and provides driving force.
Wherein, when performing trickle charge heating cycle, the upper high-voltage electricity operating mode is first carried out, then in high voltage electric equipment Direct-flow inverter and coolant heater are started to work, and are heated for power battery, reclose main positive relay, and Vehicular charger is opened Beginning work, be power battery charging and be direct-flow inverter and coolant heater power supply;It is first when exiting trickle charge heating cycle First high voltage electric equipment electric power is reduced until electric current is 0A;Then charge power is reduced until electric current is 0A, and stopping is vehicle-mounted Charger works, then disconnects with electrical relay, main positive relay and main negative relay.
Wherein, when performing trickle charge insulation operating mode, the trickle charge heating cycle is adopted as heir, is then turned off with electrical relay, master just Relay and main negative relay, stop the trickle charge to power battery, are heated by Vehicular charger for direct-flow inverter and coolant Device provides electric energy, maintains the temperature of power battery;When exiting trickle charge insulation operating mode, high voltage electric equipment electric power is reduced first Until electric current is 0A, then stop Vehicular charger work, then disconnect with electrical relay, main positive relay and main negative relay.
Wherein, when performing trickle charge fast-refrigerating operating mode, trickle charge operating mode is initially entered, then judges whether to need quickly to make It is cold, if so, then making the electric power of high voltage electric equipment remain zero;Then preliminary filling relay is closed, with electrical relay and master Negative relay, makes high voltage electric equipment terminal voltage be lifted to first voltage by 0V;Main positive relay is reclosed, sets high voltage electric Standby terminal voltage is lifted to second voltage by first voltage;High voltage electric equipment end voltage stabilization is treated after second voltage, is disconnected Preliminary filling relay;Direct-flow inverter, air-conditioning heater and compressor of air conditioner send power request start-up operation, are quickly made It is cold;The flow for exiting trickle charge fast-refrigerating operating mode is identical with the flow for exiting trickle charge heating cycle.
Wherein, under key gear is in key off states or key on states perform fast charge operating mode when, closure fast charge after Electric appliance and main negative relay, battery management system are started to work, and control quick charger carries out fast charge to power battery;Exit fast When filling operating mode, first reduce quick charger charge power until charging current be reduced to 0A, be then turned off fast charge relay With main negative relay.
Wherein, when performing fast charge heating cycle, the upper high-voltage electricity operating mode is first carried out, then in high voltage electric equipment Direct-flow inverter and coolant heater are started to work, and are heated for power battery, are reclosed fast charge relay, quick charger is opened Beginning work, be power battery charging and be direct-flow inverter and coolant heater power supply;It is first when exiting fast charge heating cycle First high voltage electric equipment electric power is reduced until electric current is 0A, then is disconnected with electrical relay, main positive relay;Then reduce and fill Until electric current is 0A, stopping quick charger working electrical power, then disconnects fast charge relay and main negative relay.
Wherein, when performing fast charge fast-refrigerating operating mode, fast charge operating mode is initially entered, then judges whether to need quickly to make It is cold, if so, then making the electric power of high voltage electric equipment remain zero;Then closure uses electrical relay, preliminary filling relay and master Negative relay, makes high voltage electric equipment terminal voltage be lifted to first voltage by 0V;Main positive relay is reclosed, sets high voltage electric Standby terminal voltage is lifted to second voltage by first voltage;High voltage electric equipment end voltage stabilization is treated after second voltage, is disconnected Preliminary filling relay;Direct-flow inverter, air-conditioning heater and compressor of air conditioner send power request start-up operation, are quickly made It is cold;The flow for exiting fast charge fast-refrigerating operating mode is identical with the flow for exiting fast charge heating cycle.
Operation principle and corresponding technique effect in relation to the present embodiment refer to the explanation of the embodiment of the present invention one, herein Repeat no more.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly Enclose, therefore equivalent variations made according to the claims of the present invention, it is still within the scope of the present invention.

Claims (13)

  1. A kind of 1. high-pressure system of new-energy automobile, it is characterised in that including:
    Power battery, for exporting high-voltage electricity;
    Quick charger, for carrying out quick charge using extraneous high-voltage electricity for the power battery;
    Fast charge relay, is connected with the power battery and the quick charger respectively, for being controlled by disconnecting and closing Make the fast charge circuit of the power battery;
    The positive relay of master that is connected with the cathode of the power battery and with the master that the anode of the power battery is connected bear after Electric appliance;
    It is connected to the positive relay of the master and the master bears electric machine between relay, the electric machine includes electronic Machine, for using the high-voltage electricity that the power battery provides to provide driving power for vehicle;
    What is be connected with the positive relay of the master uses electrical relay, and is connected in parallel on and described bears relay with electrical relay and the master Between high voltage electric equipment and Vehicular charger, it is described with electrical relay be used for the high pressure is controlled by disconnecting and closing The high voltage supply circuit of electrical equipment, the Vehicular charger are used to carry out at a slow speed for the power battery using extraneous high-voltage electricity Charging.
  2. 2. high-pressure system according to claim 1, it is characterised in that further include preliminary filling relay, be connected in parallel on the master just Relay both ends, for controlling the preliminary filling circuit of the power battery by disconnecting and closing, the preliminary filling relay also connects Preliminary filling resistance is connected to, the output voltage of the power battery is raised for being classified.
  3. 3. high-pressure system according to claim 1, it is characterised in that the high voltage electric equipment include it is following any or Any combination:
    Direct-flow inverter, the high-voltage electricity for the power battery to be provided are converted into low-voltage DC, are vehicle low pressure electricity consumption Equipment provides power supply;
    Coolant heater, for the coolant heating for the power battery;
    Air-conditioning heater, for participating in air-conditioning heating process, makes air-conditioning blow out hot wind;
    Compressor of air conditioner, for participating in air conditioner refrigerating process, makes air-conditioning blowing cold air, while to cold in the cooling circuit of air-conditioning But liquid freezes.
  4. 4. high-pressure system according to claim 1, it is characterised in that under trickle charge operating mode, the fast charge relay is kept Off-state, under fast charge operating mode, the trickle charge relay remains off.
  5. 5. high-pressure system according to claim 3, it is characterised in that under trickle charge or fast charge operating mode, the electric machine In idle condition.
  6. 6. a kind of control method of the high-pressure system of new-energy automobile, it is characterised in that the high-pressure system includes:Power electric Pond;Quick charger;The fast charge relay being connected respectively with the power battery and the quick charger;With the power electric The positive relay of master and bear relay with the master that the anode of the power battery is connected that the cathode in pond is connected;It is connected to the master Positive relay and the master bear the electric machine between relay, and the electric machine includes motor;With the positive relay of the master What device was connected uses electrical relay, and is connected in parallel on the high voltage electric equipment born with electrical relay and the master between relay And Vehicular charger, the control method include:According to the operating mode of execution, controlled by disconnecting and closing the fast charge relay The connection of the quick charger and the power battery is made, or by disconnecting and closing the positive relay of the master and the use Electrical relay controls the connection of the high voltage electric equipment and the power battery, and the Vehicular charger with it is described dynamic The connection of power battery.
  7. 7. control method according to claim 6, it is characterised in that in execution during high-voltage electricity operating mode, close electricity consumption first Relay, preliminary filling relay and main negative relay, make high voltage electric equipment terminal voltage be lifted to first voltage by 0V;Then close Main positive relay, makes high voltage electric equipment terminal voltage be lifted to second voltage by first voltage;When high voltage electric equipment terminal voltage Stablize after second voltage, disconnect preliminary filling relay;When performing lower high-voltage electricity operating mode, make high voltage electric equipment reduction electric work Rate is disconnected with electrical relay, main positive relay and main negative relay to outage threshold.
  8. 8. control method according to claim 7, it is characterised in that when performing comfortable part fault condition, reduce high pressure and use The electric power of electric equipment is to outage threshold, then disconnects and being closed with electrical relay, the main positive relay of holding and main negative relay, control Electric machine processed continues as vehicle and provides driving force.
  9. 9. control method according to claim 7, it is characterised in that when performing trickle charge heating cycle, be first carried out described Upper high-voltage electricity operating mode, then the direct-flow inverter in high voltage electric equipment and coolant heater start-up operation, are power battery Heating, recloses main positive relay, and Vehicular charger is started to work, and is power battery charging and is direct-flow inverter and cooling Liquid heating installation power supply;When exiting trickle charge heating cycle, high voltage electric equipment electric power is reduced first until electric current is 0A;Then Until electric current is 0A, stopping Vehicular charger working reduction charge power, then disconnects negative with electrical relay, main positive relay and master Relay.
  10. 10. control method according to claim 9, it is characterised in that when performing trickle charge insulation operating mode, adopt as heir the trickle charge Heating cycle, is then turned off bearing relay with electrical relay, main positive relay and master, stops the trickle charge to power battery, by car Carry charger and provide electric energy for direct-flow inverter and coolant heater, maintain the temperature of power battery;Exit trickle charge insulation work During condition, high voltage electric equipment electric power is reduced first until electric current is 0A, then stopping Vehicular charger working, then disconnects use Electrical relay, main positive relay and main negative relay.
  11. 11. control method according to claim 9, it is characterised in that when performing trickle charge fast-refrigerating operating mode, initially enter Trickle charge operating mode, then judges whether to need fast-refrigerating, if so, then making the electric power of high voltage electric equipment remain zero;So Preliminary filling relay is closed afterwards, bears relay with electrical relay and master, high voltage electric equipment terminal voltage is lifted to the first electricity by 0V Pressure;Main positive relay is reclosed, high voltage electric equipment terminal voltage is lifted to second voltage by first voltage;Treat that high voltage electric is set Standby terminal voltage stabilization disconnects preliminary filling relay after second voltage;Direct-flow inverter, air-conditioning heater and compressor of air conditioner hair Go out power request start-up operation, carry out fast-refrigerating;Exit the flow of trickle charge fast-refrigerating operating mode and exit trickle charge heating cycle Flow it is identical.
  12. 12. control method according to claim 7, it is characterised in that when performing fast charge heating cycle, be first carried out described Upper high-voltage electricity operating mode, then the direct-flow inverter in high voltage electric equipment and coolant heater start-up operation, are power battery Heating, recloses fast charge relay, and quick charger is started to work, and is power battery charging and is direct-flow inverter and cooling Liquid heating installation power supply;When exiting fast charge heating cycle, high voltage electric equipment electric power is reduced first until electric current is 0A, then is broken Open with electrical relay, main positive relay;Then charge power is reduced until electric current is 0A, and stopping quick charger working, then breaks Change up and fill relay and main negative relay.
  13. 13. control method according to claim 12, it is characterised in that perform fast charge fast-refrigerating operating mode when, first into Enter fast charge operating mode, then judge whether to need fast-refrigerating, if so, then making the electric power of high voltage electric equipment remain zero; Then closure electrical relay, preliminary filling relay and main negative relay, make high voltage electric equipment terminal voltage be lifted to first by 0V Voltage;Main positive relay is reclosed, high voltage electric equipment terminal voltage is lifted to second voltage by first voltage;Treat high voltage electric Equipment end voltage stabilization disconnects preliminary filling relay after second voltage;Direct-flow inverter, air-conditioning heater and compressor of air conditioner Power request start-up operation is sent, carries out fast-refrigerating;Exit the flow of fast charge fast-refrigerating operating mode and exit fast charge heater The flow of condition is identical.
CN201711237092.5A 2017-11-30 2017-11-30 The high-pressure system and control method of a kind of new-energy automobile Pending CN108016312A (en)

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CN110077281A (en) * 2019-04-30 2019-08-02 浙江吉利控股集团有限公司 A kind of charging heating method and system of plug-in hybrid electric vehicle power battery
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CN109353234A (en) * 2018-09-30 2019-02-19 潍柴动力股份有限公司 The charge control method and battery charge controller of electric car
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CN111137150A (en) * 2018-11-02 2020-05-12 北汽福田汽车股份有限公司 Charging control method and vehicle-mounted charger
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CN109466373A (en) * 2018-11-30 2019-03-15 北京长城华冠汽车科技股份有限公司 The cell managing device and vehicle of vehicle
CN110970690B (en) * 2018-12-29 2021-01-29 宁德时代新能源科技股份有限公司 Battery heating system and control method thereof
CN110970690A (en) * 2018-12-29 2020-04-07 宁德时代新能源科技股份有限公司 Battery heating system and control method thereof
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CN109927573A (en) * 2019-04-03 2019-06-25 上海汽车集团股份有限公司 New energy bus high pressure integrated control system and its method
CN110077281B (en) * 2019-04-30 2020-12-15 浙江吉利控股集团有限公司 Charging and heating method and system for power battery of plug-in hybrid electric vehicle
CN110077281A (en) * 2019-04-30 2019-08-02 浙江吉利控股集团有限公司 A kind of charging heating method and system of plug-in hybrid electric vehicle power battery

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Application publication date: 20180511