CN108944503A - A kind of energy management system of electric car - Google Patents
A kind of energy management system of electric car Download PDFInfo
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- CN108944503A CN108944503A CN201810636545.XA CN201810636545A CN108944503A CN 108944503 A CN108944503 A CN 108944503A CN 201810636545 A CN201810636545 A CN 201810636545A CN 108944503 A CN108944503 A CN 108944503A
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- Prior art keywords
- module
- battery pack
- electric car
- management system
- battery
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Secondary Cells (AREA)
Abstract
The invention discloses a kind of energy management systems of electric car, it include: central processing unit and energy conservation module, connection is controlled between the central processing unit and energy conservation module, it also include battery voltage acquisition unit in the energy management system of the electric car, battery pack current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit, the battery voltage acquisition unit, battery pack current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit is electrically connected between the battery pack information detection module respectively.By the above-mentioned means, the energy management system of electric car provided by the invention, it is capable of the working condition of real-time monitoring battery pack and each single battery, guarantees the safe operation of battery pack and improve the working efficiency of single battery, and extend service life cycle.
Description
Technical field
The present invention relates to a kind of energy source of car systems, more particularly to the energy management system of electric car.
Background technique
The electronic control system that battery management system carries out real time monitoring detection to battery pack and accordingly controlled.Energy
The service efficiency for enough improving battery enhances its cruising ability, extends battery life, reduces electric car cost, and can improve vehicle
Safety and reliability.
Usual battery management system includes: voltage detecting, current detecting, temperature detection and circuit isolation detection etc..It utilizes
The data detected carry out SOC real-time estimation, and the data for detecting and being calculated are shown confession using display equipment
Driver's viewing, such driver can observe the various status informations of current each battery when driving in real time, and take phase
Measure is answered, the super-charge super-discharge phenomenon of Individual cells is effectively prevented.It can also find out whether the vehicle needs to fill by SOC estimated value
Electricity, with prevent electric car cast anchor on the way battery management system be Full Vehicle System an important component, a set of function is complete
Kind, efficient, cheap battery management system not only can provide safety guarantee for the operation of electric car, and due to prolonging
The service life of battery has been grown, has reduced electric car cost on the whole.But a set of underproof battery management system is deposited
In potential safety accident, thus the research of battery management system to the popularization of entire electric car industry so that industrialization, market
Changing has very important meaning.
Summary of the invention
It being capable of real-time monitoring battery pack and each single battery the present invention solves the technical problem of how to provide one kind
Working condition, guarantee the safe operation of battery pack and improve the working efficiency of single battery, and extend service life cycle
The energy management system of electric car.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of energy of electric car is provided
Management system, comprising: central processing unit and energy conservation module control between the central processing unit and energy conservation module
Connection, the central processing unit is for the control to energy conservation module.
It include system initialization module in the energy conservation module, for that will be in a preferred embodiment
System initialization module in parameter initialized memory read module, battery pack information detection module, to battery pack carry out
The temperature management module and CAN communication module of temperature control, the memory read module, temperature management module, battery pack
Information detecting module and CAN communication module are controlled with system initialization module respectively to be connected.
It wherein, include to interrupt setting unit, input and output port module and modulus in the system initialization module
Conversion module.Between the interruption setting unit and CAN communication module control connection, the input and output port module with
Connection is controlled between battery pack information detection module.
It also include that battery voltage is adopted in a preferred embodiment, in the energy management system of the electric car
Collect unit, battery pack current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit, the battery pack
Voltage acquisition unit, battery pack current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit respectively with institute
It is electrically connected between the battery pack information detection module stated.
In a preferred embodiment, the energy management system of the electric car also includes alarm module, described
Alarm module and temperature management module between be electrically connected, also include warning circuit in the alarm module, it is described
Connection is controlled between warning circuit and central processing unit.
In a preferred embodiment, the energy management system of the electric car also includes indicating lamp module, institute
Connection is controlled between the indicating lamp module stated and battery pack information detection module, central processing unit.
It include reset circuit in the central processing unit in a preferred embodiment, the reset circuit is height
Level resets.
The beneficial effects of the present invention are: capableing of the working condition of real-time monitoring battery pack and each single battery, guarantee battery
The safe operation of group and the working efficiency for improving single battery, and extend service life cycle.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the overall system structure schematic diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 2 is the reset circuit schematic diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 3 is the battery voltage acquisition circuit schematic diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 4 is the battery pack current Acquisition Circuit schematic diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 5 is the CAN controller circuit diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 6 is the voltage balance circuit schematic diagram of one specific embodiment of energy management system of electric car of the present invention；
Fig. 7 is the alarm module circuitry figure of one specific embodiment of energy management system of electric car of the present invention；
Fig. 8 is the indicating lamp module circuit diagram of one specific embodiment of energy management system of electric car of the present invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Attached drawing is please referred to, in a specific embodiment of the present invention:
Embodiment 1:
A kind of energy management system of electric car, the energy management system of the electric car, comprising: central processing unit and
Energy conservation module, controls connection between the central processing unit and energy conservation module, the central processing unit is used for
Control to energy conservation module.
Include in the energy conservation module system initialization module, for by parameter in system initialization module into
The memory read module of row initialization, battery pack information detection module, the temperature management mould that temperature control is carried out to battery pack
Block and CAN communication module, the memory read module, temperature management module, battery pack information detection module and CAN communication
Module controls with system initialization module connect respectively.
It wherein, include to interrupt setting unit, input and output port module and modulus in the system initialization module
Conversion module, between the interruption setting unit and CAN communication module control connection, the input and output port module with
Connection is controlled between battery pack information detection module.
It also include that battery voltage acquisition unit, battery pack current are adopted in the energy management system of the electric car
Collect unit, battery pack temperature acquisition unit, battery pack balancing control unit.The battery voltage acquisition unit, battery pack
Current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit are detected with the battery pack information respectively
It is electrically connected between module.
Embodiment 2:
A kind of energy management system of electric car, the energy management system of the electric car, comprising: central processing unit and
Energy conservation module, controls connection between the central processing unit and energy conservation module, the central processing unit is used for
Control to energy conservation module.
Include in the energy conservation module system initialization module, for by parameter in system initialization module into
The memory read module of row initialization, battery pack information detection module, the temperature management mould that temperature control is carried out to battery pack
Block and CAN communication module, the memory read module, temperature management module, battery pack information detection module and CAN communication
Module controls with system initialization module connect respectively.
It wherein, include to interrupt setting unit, input and output port module and modulus in the system initialization module
Conversion module, between the interruption setting unit and CAN communication module control connection, the input and output port module with
Connection is controlled between battery pack information detection module.
It also include that battery voltage acquisition unit, battery pack current are adopted in the energy management system of the electric car
Collect unit, battery pack temperature acquisition unit, battery pack balancing control unit.The battery voltage acquisition unit, battery pack
Current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit are detected with the battery pack information respectively
It is electrically connected between module.
The energy management system of the electric car also includes alarm module, the alarm module and temperature management
It is electrically connected between module, also includes warning circuit in the alarm module, the warning circuit and central processing unit
Between control connection.
Embodiment 3:
A kind of energy management system of electric car, the energy management system of the electric car, comprising: central processing unit and
Energy conservation module, controls connection between the central processing unit and energy conservation module, the central processing unit is used for
Control to energy conservation module.
Include in the energy conservation module system initialization module, for by parameter in system initialization module into
The memory read module of row initialization, battery pack information detection module, the temperature management mould that temperature control is carried out to battery pack
Block and CAN communication module, the memory read module, temperature management module, battery pack information detection module and CAN communication
Module controls with system initialization module connect respectively.
It wherein, include to interrupt setting unit, input and output port module and modulus in the system initialization module
Conversion module, between the interruption setting unit and CAN communication module control connection, the input and output port module with
Connection is controlled between battery pack information detection module.
It also include that battery voltage acquisition unit, battery pack current are adopted in the energy management system of the electric car
Collect unit, battery pack temperature acquisition unit, battery pack balancing control unit.The battery voltage acquisition unit, battery pack
Current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit are detected with the battery pack information respectively
It is electrically connected between module.
The energy management system of the electric car also includes alarm module, the alarm module and temperature management
It is electrically connected between module, also includes warning circuit in the alarm module, the warning circuit and central processing unit
Between control connection.
The energy management system of the electric car also includes indicating lamp module, the indicating lamp module and battery
Connection is controlled between group information detection module, central processing unit.
Embodiment 4:
A kind of energy management system of electric car, the energy management system of the electric car, comprising: central processing unit and
Energy conservation module, controls connection between the central processing unit and energy conservation module, the central processing unit is used for
Control to energy conservation module.
Include in the energy conservation module system initialization module, for by parameter in system initialization module into
The memory read module of row initialization, battery pack information detection module, the temperature management mould that temperature control is carried out to battery pack
Block and CAN communication module, the memory read module, temperature management module, battery pack information detection module and CAN communication
Module controls with system initialization module connect respectively.
It wherein, include to interrupt setting unit, input and output port module and modulus in the system initialization module
Conversion module, between the interruption setting unit and CAN communication module control connection, the input and output port module with
Connection is controlled between battery pack information detection module.
It also include that battery voltage acquisition unit, battery pack current are adopted in the energy management system of the electric car
Collect unit, battery pack temperature acquisition unit, battery pack balancing control unit.The battery voltage acquisition unit, battery pack
Current acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit are detected with the battery pack information respectively
It is electrically connected between module.
The energy management system of the electric car also includes alarm module, the alarm module and temperature management
It is electrically connected between module, also includes warning circuit in the alarm module, the warning circuit and central processing unit
Between control connection.
The energy management system of the electric car also includes indicating lamp module, the indicating lamp module and battery
Connection is controlled between group information detection module, central processing unit.
It include reset circuit in the central processing unit, the reset circuit is high level reset.
In the above-described embodiment, all modules, system and the device be module in the prior art, system with
Device, it is without restriction in structure, as long as realizing corresponding function.
Specifically, there are two types of the repositioning methods of single-chip microcontroller: low level resets and high level resets, and uPD78F0513 is used
Be low level reset.As long as on single-chip microcontroller RESET pin plus a duration is at least 24 vibrations
The low level for swinging period i.e. two machine cycle can 50.The reset circuit that this reset circuit is taken be manually by
Key triggers RESET pin, achievees the purpose that monolithic processor resetting.It is off-state when key S2 is not pressed, 5V power supply passes through
R1-10R1-11 causes capacitance cathode to be high level (+5V) to capacitor C1-5 charging, by becoming low resistance state after two phase inverters
State, is transferred to the high level on RSET pin for low resistance state, and single-chip microcontroller normal work does not reset;When key S2 is pressed, quite
After short circuit, 5V power supply directly pass through R1-10 to be formed into a loop, at this time capacitor C1-5 then can by R1-11 to form electricity
Electrical circuit is received until being discharged, capacitance cathode is low level at this time, forms low level by phase inverter twice, is transferred to
RSET makes monolithic processor resetting.
In battery voltage acquisition circuit, when designing battery voltage acquisition circuit in view of vehicle total power battery voltage compared with
Height, and to safeguard the health for ensuring each single battery and service life, therefore the circuit of this secondary design must be able to each batteries
Voltage acquisition is carried out, it is also contemplated that Acquisition Circuit works under this rugged environment of automobile, it is necessary to its anti-interference ability is improved,
Battery voltage acquisition circuit in this system is actually a difference ratio bleeder circuit, why using resistance and amplifier member
The difference ratio circuit of part composition is to reduce voltage signal in order to reach signal isolation and be input to the impedance of next stage to improve
Driving capability makes front stage reduce interference.U7 be amplifier component LM358, resistance R53=R52, R55=R54, capacitor be in order to
Ripple voltage is removed, the stability of input voltage signal is enhanced.The partial pressure value that wherein circuit generates is R55/R53.
Include CAN controller in the CAN communication module, but due to this microcontroller used itself without
CAN controller, therefore need external CAN controller SJA1000.U3 is controller SJA1000, and U3-2 is driver 82C250,
External clock circuit is using the crystal oscillator of 16MHz, and additional CAN data transmit and receive small LED light, pass through the sudden strain of a muscle of lampet
The bright transmission that can intuitively see very much data.
It include voltage balance circuit in the battery pack balancing control unit, the voltage balance circuit is using electricity
Hinder dissipation method.
Therefore, the invention has the following advantages that capableing of the working condition of real-time monitoring battery pack and each single battery, guarantee
The safe operation of battery pack and the working efficiency for improving single battery, and extend service life cycle.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (4)
1. a kind of energy management system of electric car characterized by comprising central processing unit and energy conservation module, institute
Connection is controlled between the central processing unit stated and energy conservation module, the central processing unit is used for energy conservation module
Control；
It include system initialization module in the energy conservation module, for carrying out just parameter in system initialization module
The memory read module of beginningization, battery pack information detection module, the temperature management module that temperature control is carried out to battery pack and
CAN communication module, the memory read module, temperature management module, battery pack information detection module and CAN communication module
It controls and connects with system initialization module respectively,
It wherein, include to interrupt setting unit, input and output port module and analog-to-digital conversion in the system initialization module
Module controls connection, the input and output port module and battery between the interruption setting unit and CAN communication module
Connection is controlled between group information detection module,
It also include battery voltage acquisition unit, battery pack current acquisition list in the energy management system of the electric car
Member, battery pack temperature acquisition unit, battery pack balancing control unit, the battery voltage acquisition unit, battery pack current
Acquisition unit, battery pack temperature acquisition unit, battery pack balancing control unit respectively with the battery pack information detection module
Between be electrically connected.
2. the energy management system of electric car according to claim 1, which is characterized in that the energy of the electric car
Management system also includes alarm module, is electrically connected between the alarm module and temperature management module, the report
Also include warning circuit in alert module, connection is controlled between the warning circuit and central processing unit.
3. the energy management system of electric car according to claim 1, which is characterized in that the energy of the electric car
Management system also includes indicating lamp module, the indicating lamp module and battery pack information detection module, central processing unit
Between control connection.
4. the energy management system of electric car according to claim 1, which is characterized in that wrapped in the central processing unit
Containing reset circuit, the reset circuit is high level reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636545.XA CN108944503A (en) | 2018-06-20 | 2018-06-20 | A kind of energy management system of electric car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810636545.XA CN108944503A (en) | 2018-06-20 | 2018-06-20 | A kind of energy management system of electric car |
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| CN108944503A true CN108944503A (en) | 2018-12-07 |
Family
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| CN201810636545.XA Pending CN108944503A (en) | 2018-06-20 | 2018-06-20 | A kind of energy management system of electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697660A (en) * | 2020-06-24 | 2020-09-22 | 北京捷莱特技术有限公司 | Battery management system |
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Application publication date: 20181207 |