CN106114230A - Cell management system of electric automobile - Google Patents

Cell management system of electric automobile Download PDF

Info

Publication number
CN106114230A
CN106114230A CN201610608300.7A CN201610608300A CN106114230A CN 106114230 A CN106114230 A CN 106114230A CN 201610608300 A CN201610608300 A CN 201610608300A CN 106114230 A CN106114230 A CN 106114230A
Authority
CN
China
Prior art keywords
mos pipe
battery pack
power battery
mos
control switch
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
CN201610608300.7A
Other languages
Chinese (zh)
Inventor
张超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhaoqing Hi Tech Zone Yingshun Auto Design Co ltd
Original Assignee
Zhaoqing Hi Tech Zone Yingshun Auto Design Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhaoqing Hi Tech Zone Yingshun Auto Design Co ltd filed Critical Zhaoqing Hi Tech Zone Yingshun Auto Design Co ltd
Priority to CN201610608300.7A priority Critical patent/CN106114230A/en
Publication of CN106114230A publication Critical patent/CN106114230A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a kind of cell management system of electric automobile, it includes charger, power battery pack, motor driver, is provided with the first control switch, is provided with the second control switch between described power battery pack and motor driver between described charger and power battery pack；Acquisition Circuit, for gathering the electric current of power battery pack, voltage, internal resistance and temperature data；CPU, for receiving the voltage of described power battery pack, electric current, internal resistance and temperature data, and the control controlling correspondence switches on-off.The cell management system of electric automobile of the present invention is conducive to extending the service life of power battery pack.

Description

Cell management system of electric automobile
Technical field
The invention belongs to battery of electric vehicle management technique field, particularly relate to a kind of cell management system of electric automobile.
Background technology
Existing battery management system simply carries out charge and discharge control to power battery pack simply, so influences whether power The service life of set of cells.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of cell management system of electric automobile, it is intended to solve existing Battery management system is had cannot rationally to carry out the technical problem of set of cells control.
The present invention is achieved in that described cell management system of electric automobile, including charger, power battery pack, electricity Machine driver, is provided with the first control switch, described power battery pack and motor driving between described charger and power battery pack It is provided with the second control switch between device, also includes:
Acquisition Circuit, for gathering the electric current of power battery pack, voltage, internal resistance and temperature data；
CPU, for receiving the voltage of described power battery pack, electric current, internal resistance and temperature data, and controls the control of correspondence Switch on-off；
Wherein, described control switch includes a N-MOS pipe and the 2nd N-MOS pipe, a N-MOS pipe drain electrode and the 2nd N- The drain electrode of metal-oxide-semiconductor is connected, and the source electrode of a N-MOS pipe is connected with load negative pole, a N-MOS tube grid and the 2nd N- Metal-oxide-semiconductor grid is all connected with CPU.When set of cells is carried out discharge operation, a N-MOS pipe conducting, the 2nd N-MOS manages not Conducting；When set of cells is charged operation, a N-MOS pipe is not turned on, the 2nd N-MOS pipe conducting；When battery cell electricity Be pressed be short-circuited above or below predetermined threshold value or set of cells or cross stream time, the oneth N-MOS pipe and the 2nd N-MOS pipe do not lead Logical.
The invention has the beneficial effects as follows: the present invention can turn off the control switch of correspondence when battery exists fault, reaches Close the charge circuit of power battery pack and the purpose of discharge loop, by rationally monitoring power battery voltage, electric current, interior Resistance, temperature, be conducive to extending the service life of power battery pack.
Accompanying drawing explanation
Fig. 1 is the structure chart of cell management system of electric automobile；
Fig. 2 is the structure chart controlling switch.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and It is not used in the restriction present invention.
As it is shown in figure 1, the cell management system of electric automobile that the present invention provides include charger 1, first control switch 2, Power battery pack 3, second controls switch 4, motor driver 5, is provided with first between described charger 1 and power battery pack 3 Control switch 2, between described power battery pack 3 and motor driver 5, be provided with the second control switch 4, also include:
Acquisition Circuit 6, for gathering the electric current of power battery pack, voltage, internal resistance and temperature data；
CPU7, for receiving the voltage of described power battery pack, electric current, internal resistance and temperature data, and controls the control of correspondence System switches on-off；
As in figure 2 it is shown, control switch to include N-MOS pipe 8 and a 2nd N-MOS pipe 9, N-MOS pipe 8 drain electrode and the The drain electrode of two N-MOS pipes 9 is connected, the source electrode of a N-MOS pipe 8 with load negative pole be connected, N-MOS pipe 8 grid and 2nd N-MOS pipe 9 grid is all connected with CPU.When set of cells is carried out discharge operation, a N-MOS pipe 8 turns on, and second N-MOS pipe 9 is not turned on；When set of cells is charged operation, a N-MOS pipe 8 is not turned on, and the 2nd N-MOS pipe 9 turns on； When battery cell voltage has more than or is less than predetermined threshold value or set of cells is short-circuited or crosses stream, a N-MOS pipe 8 and second N-MOS pipe 9 is all not turned on.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.

Claims (1)

1. a cell management system of electric automobile, including charger, power battery pack, motor driver, described charger with It is provided with the first control switch between power battery pack, is provided with the second control between described power battery pack and motor driver and opens Close, it is characterised in that also include:
Acquisition Circuit, for gathering the electric current of power battery pack, voltage, internal resistance and temperature data；
CPU, for receiving the voltage of described power battery pack, electric current, internal resistance and temperature data, and controls the control switch of correspondence Break-make；
Wherein, described control switch includes a N-MOS pipe and the 2nd N-MOS pipe, a N-MOS pipe drain electrode and the 2nd N-MOS The drain electrode of pipe is connected, and the source electrode of a N-MOS pipe is connected with load negative pole, a N-MOS tube grid and the 2nd N-MOS pipe Grid is all connected with CPU.When set of cells is carried out discharge operation, a N-MOS pipe conducting, the 2nd N-MOS pipe is not turned on； When set of cells is charged operation, a N-MOS pipe is not turned on, the 2nd N-MOS pipe conducting；When battery cell voltage has super Cross or less than predetermined threshold value or set of cells is short-circuited or cross stream time, the oneth N-MOS pipe and the 2nd N-MOS pipe be all not turned on.
CN201610608300.7A 2016-07-28 2016-07-28 Cell management system of electric automobile Pending CN106114230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610608300.7A CN106114230A (en) 2016-07-28 2016-07-28 Cell management system of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610608300.7A CN106114230A (en) 2016-07-28 2016-07-28 Cell management system of electric automobile

Publications (1)

Publication Number Publication Date
CN106114230A true CN106114230A (en) 2016-11-16

Family

ID=57254834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610608300.7A Pending CN106114230A (en) 2016-07-28 2016-07-28 Cell management system of electric automobile

Country Status (1)

Country Link
CN (1) CN106114230A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427652A (en) * 2016-11-23 2017-02-22 杭州衡源汽车科技有限公司 Charging switching system of electric vehicle and control method thereof
CN106585410A (en) * 2016-12-16 2017-04-26 深圳市沃特玛电池有限公司 Charging control circuit of electric vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090302805A1 (en) * 2008-06-06 2009-12-10 Mitsumi Electric Co. Ltd. Charge-controlling semiconductor integrated circuit
CN104009519A (en) * 2014-04-30 2014-08-27 湖北一彰科技有限责任公司 Battery management system of micro-electric vehicle
CN104249781A (en) * 2014-08-18 2014-12-31 浙江超威创元实业有限公司 E-bike battery management system with fingerprint recognition function
CN104638718A (en) * 2015-01-06 2015-05-20 浙江超威创元实业有限公司 Intelligent management system and method of electric vehicle battery
CN105490328A (en) * 2015-11-10 2016-04-13 浙江超威创元实业有限公司 Intelligent battery pack, locking method for intelligent battery pack and electric vehicle
CN105490327A (en) * 2015-11-10 2016-04-13 浙江超威创元实业有限公司 Three-layer protection system for lithium battery pack and control method of three-layer protection system
CN205836559U (en) * 2016-07-28 2016-12-28 肇庆高新区凯盈顺汽车设计有限公司 Cell management system of electric automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090302805A1 (en) * 2008-06-06 2009-12-10 Mitsumi Electric Co. Ltd. Charge-controlling semiconductor integrated circuit
CN104009519A (en) * 2014-04-30 2014-08-27 湖北一彰科技有限责任公司 Battery management system of micro-electric vehicle
CN104249781A (en) * 2014-08-18 2014-12-31 浙江超威创元实业有限公司 E-bike battery management system with fingerprint recognition function
CN104638718A (en) * 2015-01-06 2015-05-20 浙江超威创元实业有限公司 Intelligent management system and method of electric vehicle battery
CN105490328A (en) * 2015-11-10 2016-04-13 浙江超威创元实业有限公司 Intelligent battery pack, locking method for intelligent battery pack and electric vehicle
CN105490327A (en) * 2015-11-10 2016-04-13 浙江超威创元实业有限公司 Three-layer protection system for lithium battery pack and control method of three-layer protection system
CN205836559U (en) * 2016-07-28 2016-12-28 肇庆高新区凯盈顺汽车设计有限公司 Cell management system of electric automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427652A (en) * 2016-11-23 2017-02-22 杭州衡源汽车科技有限公司 Charging switching system of electric vehicle and control method thereof
CN106427652B (en) * 2016-11-23 2018-08-21 杭州衡源汽车科技有限公司 The charging switching system and its control method of electric vehicle
CN106585410A (en) * 2016-12-16 2017-04-26 深圳市沃特玛电池有限公司 Charging control circuit of electric vehicle

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Application publication date: 20161116