CN104753141B - A kind of compatible applicable 12V charging platform circuits of 24V platforms electric car - Google Patents

A kind of compatible applicable 12V charging platform circuits of 24V platforms electric car Download PDF

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Publication number
CN104753141B
CN104753141B CN201510167861.3A CN201510167861A CN104753141B CN 104753141 B CN104753141 B CN 104753141B CN 201510167861 A CN201510167861 A CN 201510167861A CN 104753141 B CN104753141 B CN 104753141B
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China
Prior art keywords
relay
charging
safety plate
low tension
tension battery
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CN201510167861.3A
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CN104753141A (en
Inventor
黄龙
朱长明
曾斌
郭青林
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Chengdu Yajun New Energy Automobile Technology Co Ltd
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Chengdu Yajun New Energy Automobile Technology Co Ltd
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    • 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
    • B60L58/18Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • 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

Abstract

The invention discloses a kind of compatible applicable 12V charging platform circuits of 24V platforms electric car.The DC charging motor for mainly solving existing 12V vehicles and 24V vehicles can not share, the problem of causing the wasting of resources.Including low tension battery, the relay J0 that one end is connected with low tension battery positive pole respectively, multiple safety plate F1 ~ Fn that input is connected with the relay J0 other end respectively, the output end of one of safety plate is used for the output end for connecting DC charging motor, the low-voltage electrical part of remaining safety plate and vehicle connects, low tension battery positive pole is used for the normal electric installation for connecting vehicle, the relay J0 other ends are used to be connected with vehicle VCU, and output control Vehicular charging ACC, diode D1 is also associated between DC charging motor and safety plate, the low tension battery negative pole connects ground strap.The present invention makes the compatible 12V platforms DC charging motor of 24V vehicles and 24V platform DC charging motors, reduces the construction cost that 24V vehicles turn special DC charger, increases the shared performance of DC charging motor.

Description

A kind of compatible applicable 12V charging platform circuits of 24V platforms electric car
Technical field
The present invention relates to a kind of compatible applicable 12V charging platform circuits of 24V platforms electric car, belong to electric automobile power supply neck Domain.
Background technology
With the development of society and the popularization of national policy, the enterprise of electric automobile and vehicle are more and more, electronic at present The vehicle low-voltage electrical platform of automobile can be divided into two kinds:The dolly such as 12V and 24V, passenger car, pick up vehicle is 12V low-voltage electricals The cart such as platform, car, lorry vehicle is 24V low-voltage electrical platforms, thus build electric vehicle DC charger be just divided into it is suitable For 12V vehicles and suitable for 24V vehicle two states, required according to national standard GB/T20234, DC charging motor can be defeated when working Go out one group of low pressure accessory power supply, to provide vehicle low-tension supply during charging electric vehicle, suitable for the DC charging motor of 12V vehicles The low pressure accessory power supply of output is 12V, and the low pressure accessory power supply exported suitable for the DC charging motor of 24V vehicles is 24V, when When 24V vehicles are charged using 12V chargers, the 12V low pressure accessory power supply of charger output can not meet the electrical part of 24V platforms Part operating voltage, need during charging the instrument of work, BMS, insulation tester etc. not to start normally, cause vehicle not fill normally Electricity, so 24V vehicles need to individually build the charger that output accessory power supply is 24V, the charger of 12V vehicles, money can not be used Source can not share, and cause the increase of car cost, the wasting of resources.
The content of the invention
It is an object of the invention to provide a kind of compatible applicable 12V charging platform circuits of 24V platforms electric car, mainly solve Existing 12V Vehicular chargings machine can not give 24V Vehicular chargings, and the DC charging motor of 12V vehicles and 24V vehicles can not share, and make Into the problem of the wasting of resources.
To achieve these goals, the technical solution adopted by the present invention is as follows:
A kind of compatible applicable 12V charging platform circuits of 24V platforms electric car, including low tension battery, one end store with low pressure The relay J0 of anode connection, multiple safety plate F1 ~ Fn that input is connected with the relay J0 other end simultaneously, wherein The output end of one safety plate is used for the low-voltage electrical part company of the output end for connecting DC charging motor, remaining safety plate and vehicle Connect, low tension battery positive pole is used for the normal electric installation for connecting vehicle, and the relay J0 other ends are used to be connected with vehicle VCU, and defeated Go out to control Vehicular charging ACC, diode D1, the low tension battery negative pole are also associated between DC charging motor and safety plate Connect ground strap.
Specifically, one end of the relay J0 coils is connected with low tension battery positive pole, and the other end is used for and vehicle VCU Connection, relay J0 switch one end be connected with low tension battery positive pole, the other end then respectively with multiple safety plate F1 ~ Fn phases Connect, and output control Vehicular charging ACC.
Further, relay J1 and relay J2, the relay are also associated between the low tension battery both positive and negative polarity Device J1 and relay J2 is connected with vehicle ignition lock, and safety plate F0, the relay are also associated between relay J1 and ignition lock Device J1 is also connected with the output end of DC charging motor;The relay J2 also output control Vehicular charging ACC.
Further, one end of the relay J1 switches is connected with low tension battery positive pole, the other end and safety plate F0 It is connected, relay J1 coils are then connected with the output end of DC charging motor;One end of the relay J2 coils and ignition lock phase Even, the other end is then connected with low tension battery negative pole, and one end of relay J2 switch is connected with low tension battery positive pole, another End is then connected with multiple safety plate F1 ~ Fn respectively, and output control Vehicular charging ACC.
Further, the low tension battery positive pole is also associated with safety plate Fn ', the output end of this safety plate be used for The instrument of vehicle often electrically connects.
Yet further, the low-voltage electrical part includes BMS, instrument 1 grade of electricity, insulation tester of vehicle.
Compared with prior art, the invention has the advantages that:
(1)The present invention makes the compatible 12V platforms DC charging motor of 24V vehicles and 24V platform DC charging motors, reduces 24V vehicles turn the construction cost of special DC charger, increase the shared performance of DC charging motor.
(2)The present invention takes into full account security during charging, 12V the or 24V electric control relays of DC charging motor output J1 adhesives, the key switch power supply of ignition lock is disconnected, realizes driving interlock function.
(3)In the present invention, 24V low tension platform electric vehicles are put down by designing relay J0 modes come compatible 12V voltages Platform charger;24V low tension platform electric vehicles realize that compatible 12V voltage platforms fill by itself low tension battery power supply mode Motor.
(4)The present invention is simple in construction, and cost is cheap, practical, is especially suitable for large-scale promotion use.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the present invention-embodiment.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but is not limited to The following example.
Embodiment
As shown in figure 1, a kind of compatible applicable 12V charging platform circuits of 24V platforms electric car, including low tension battery, point Relay J0, J1, J2, the safety plate F5 not being connected with low tension battery positive pole, low tension battery positive pole are used to connect normal Denso Put, one end of relay J0 coils is connected with low tension battery positive pole, and the other end is connected with vehicle VCU, relay J0 switches One end is connected with low tension battery positive pole, and the other end is connected respectively to safety plate F1, safety plate F3, safety plate F4, safety plate F2 Input, relay J0 switch the other end also with relay J2 switch one end be connected, relay J2 switch the other end Then it is connected with low tension battery positive pole, low tension battery negative pole is connected by relay J2 coils with ignition lock, and ignition lock also connects Safety plate F0 is connected to, the safety plate F0 other ends are connected with relay J1 switches, and relay J1 coils are then connected to safety plate F2's Output end is simultaneously connected with the output end of DC charging motor.
In the present embodiment, relay J0 connects relays of the charging ACC of vehicle as control charging ACC with J2, after Electrical equipment J1 is then used as cut-off relay, low tension battery negative pole connection ground strap.
In the present embodiment, safety plate F1, safety plate F5, safety plate F3, safety plate F4, safety plate F2 output end difference Connect the BMS of vehicle, often electricity, 1 grade of electricity of instrument, insulation tester, DC charging motor output end, DC charging motor pass through guarantor to instrument Dangerous piece F2 gives often electricity, the charging of 1 grade of electricity of instrument, insulation tester of BMS, instrument respectively.
In the present embodiment, diode D1 is also associated between safety plate and DC charging motor output end, makes low pressure electric power storage Pond powers to be kept apart with DC charging motor power supply.
The present invention operation principle be:When vehicle detection to DC charging rifle inserts charging socket, vehicle VCU is exported The control relay J0 adhesives of earth signal 8105.When vehicle detection to power when battery has been filled with electricity, i.e. disconnection exports earth signal 8105, charging socket is inserted when vehicle is not detected by DC charging rifle, then does not export 8105 earth signals.
What deserves to be explained is the existing part that the electric component of vehicle of the present invention is vehicle to be had in itself, In vehicle, setting and the mutual annexation of electric component are constant, and the present invention simply devises a kind of 24V platforms The compatible applicable 12V charging platform circuit structures of electric car, for being connected in the electric component of vehicle described herein, with up to To effect of the present invention.
The present invention the course of work be:
1st, when the access 24V DC charging motor chargings of 24 V vehicles, vehicle VCU exports 8105 earth signals, control relay J0 adhesives, DC charging motor output 24V electricity 8505, by BMSs, instrument normal electricity, instrument of the diode D1 and safety plate F2 to vehicle 1 grade of electricity of table, insulation tester power supply, realize normal power supply;8505 control relay J1 of DC charging motor output 24V electricity inhale simultaneously Close, disconnect the key switch power supply 8901 of ignition lock, realize driving interlocking;The 24V electricity 8505 of DC charging motor output simultaneously passes through Crossing relay J0 can charge to low tension battery.
2nd, when the access 12V DC charger charging of 24 V vehicles, vehicle VCU exports 8105 earth signals, control relay J0 adhesives, low tension battery power supply is by BMSs of the relay J0 to vehicle, instrument often electricity, the confession of 1 grade of electricity of instrument, insulation tester Electricity, realize normal power supply;The 12V electricity 8505 of DC charging motor output, control relay J1 adhesives, the key for disconnecting ignition lock are opened Power supply 8901 is closed, realizes driving interlocking;Now, the 24V electricity and the 12V electricity and direct current of DC charging motor output that low tension battery supplies The 12V electricity of charger output is kept apart by diode D1.
By the present invention, 24V low tension platform electric vehicles are by designing relay J0 modes come compatible 12V voltage platforms Charger;24V low tension platform electric vehicles realize that compatible 12V voltage platforms charge by itself low tension battery power supply mode Machine.
By the present invention, make the compatible 12V platforms DC charging motor of 24V vehicles and 24V platform DC charging motors, subtract Few 24V vehicles turn the construction cost of special DC charger, increase the shared performance of DC charging motor.
According to above-described embodiment, the present invention can be realized well.What deserves to be explained is before based on said structure design Put, to solve same technical problem, some are made in the present invention without substantial change or polishing, it is used The essence of technical scheme is still as the present invention, therefore it should also be as within the scope of the present invention.

Claims (5)

1. the compatible applicable 12V charging platform circuits of a kind of 24V platforms electric car, it is characterised in that including low tension battery, one end The relay J0 being connected with low tension battery positive pole, multiple safety plate F1 that input is connected with the relay J0 other end simultaneously ~Fn, the output end of one of safety plate are used for the low pressure of the output end for connecting DC charging motor, remaining safety plate and vehicle Electric component connects, and low tension battery positive pole is used for the normal electric installation for connecting vehicle, and the relay J0 other ends are used for and vehicle VCU Connection, and output control Vehicular charging ACC, are also associated with diode D1, the low pressure between DC charging motor and safety plate Battery terminal negative connects ground strap;One end of the relay J0 coils is connected with low tension battery positive pole, the other end be used for Vehicle VCU connections, relay J0 switch one end be connected with low tension battery positive pole, the other end then respectively with multiple safety plate F1 ~Fn is connected, and output control Vehicular charging ACC.
A kind of 2. compatible applicable 12V charging platform circuits of 24V platforms electric car according to claim 1, it is characterised in that Relay J1 and relay J2, the relay J1 and relay J2 and car are also associated between the low tension battery both positive and negative polarity Ignition lock is connected, be also associated between relay J1 and ignition lock safety plate F0, the relay J1 also with DC charging motor Output end be connected;The relay J2 also output control Vehicular charging ACC.
A kind of 3. compatible applicable 12V charging platform circuits of 24V platforms electric car according to claim 2, it is characterised in that One end of the relay J1 switches is connected with low tension battery positive pole, and the other end is connected with safety plate F0, relay J1 coils Then it is connected with the output end of DC charging motor;One end of the relay J2 coils is connected with ignition lock, the other end then with low pressure Battery terminal negative is connected, and one end of relay J2 switch is connected with low tension battery positive pole, the other end then respectively with multiple guarantors Dangerous piece F1~Fn is connected, and output control Vehicular charging ACC.
4. the compatible applicable 12V charging platform circuits of a kind of 24V platforms electric car according to claim 1 or 2 or 3, it is special Sign is that the low tension battery positive pole is also associated with safety plate Fn ', and the output end of this safety plate is for normal with the instrument of vehicle Electrical connection.
A kind of 5. compatible applicable 12V charging platform circuits of 24V platforms electric car according to claim 4, it is characterised in that The low-voltage electrical part includes BMS, instrument 1 grade of electricity, insulation tester of vehicle.
CN201510167861.3A 2015-04-10 2015-04-10 A kind of compatible applicable 12V charging platform circuits of 24V platforms electric car Active CN104753141B (en)

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Application Number Priority Date Filing Date Title
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CN104993536B (en) * 2015-07-03 2017-12-08 南京金龙新能源汽车研究院有限公司 One kind is used for compatible direct current charging pile low pressure output stage
CN107181249B (en) * 2016-03-09 2020-06-02 宝沃汽车(中国)有限公司 Electric automobile and low-voltage power supply device thereof
CN108773281B (en) * 2018-05-03 2020-03-17 成都雅骏新能源汽车科技股份有限公司 Charging management control method for electric automobile

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CN101442213A (en) * 2008-12-22 2009-05-27 奇瑞汽车股份有限公司 Apparatus for controlling automobile quiescent current
US9244127B2 (en) * 2011-10-26 2016-01-26 Randell Lee Wilferd Quick reference relay diagnostic circuit
CN203151207U (en) * 2013-04-01 2013-08-21 谷润雨 Vehicle emergency power converting system
CN203287716U (en) * 2013-06-24 2013-11-13 天津山河装备开发有限公司 Safety control system of engineering machinery engine
CN204651955U (en) * 2015-04-10 2015-09-16 成都雅骏新能源汽车科技股份有限公司 A kind of 24V platform electric motor car compatibility is suitable for 12V charging platform circuit

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