CN101224712B - Super capacitance energy management system of electric motorcar based on CAN bus - Google Patents
Super capacitance energy management system of electric motorcar based on CAN bus Download PDFInfo
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- CN101224712B CN101224712B CN2008100137687A CN200810013768A CN101224712B CN 101224712 B CN101224712 B CN 101224712B CN 2008100137687 A CN2008100137687 A CN 2008100137687A CN 200810013768 A CN200810013768 A CN 200810013768A CN 101224712 B CN101224712 B CN 101224712B
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- 239000003990 capacitor Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000000178 monomer Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to an energy management system of super-capacitors which is used for electric cars and belongs to the technical field of the energy management systems of super-capacitors which are used for cars. The invention comprises two nodes of a CAN bus of capacitor energy detection modules and a node of a CAN bus of displaying modules, and the nodes of the CAN bus of capacitor energy detection modules comprises a microcontroller module, a voltage measurement module and a temperature measurement module; wherein, the microcontroller module comprises an AD interface, a digital I/O interface and a CAN interface, the voltage measurement module is connected with the AD interface of the microcontroller module, and the temperature measurement module is connected with the digital I/O interface of the microcontroller module; the node of the CAN bus of displaying modules is connected with the nodes of the CAN bus of capacitor energy detection modules by the CAN bus. The invention uses a microcontroller for collecting the voltage and temperature signal, determining and predicting the capacitor running status, and can quickly and accurately find out failed super-capacitors, thus being favorable for keeping the whole car system steady. The system of the invention is connected with other control systems of the whole car by the CAN interfaces.
Description
Technical field
The present invention relates to a kind of super capacitor energy management system that is used for electronlmobil, especially a kind of super capacitance energy management system of electric motorcar based on the CAN bus belongs to automobile super capacitor energy management system technical field.
Background technology
In electronlmobil research and development industrialization process, super capacitor is as electrokinetic cell, because advantage such as it is pollution-free, the life-span is long, charging rate is fast has become the energy supply main force.But the energy supply system node that super capacitor is formed is many, how can fast, correctly find the fault super capacitor, becomes the problem that energy management system is needed solution badly, simultaneously, designs energy management system and also helps the stable of Full Vehicle System.
In prior art, the super capacitor energy management system adopts the method for hand inspection, under off-line state, use handheld device to detect the voltage and the temperature of each module one by one, not only take time and effort, and mode of operation that can not online detection super capacitor, for the normal operation of electronlmobil is brought potential safety hazard.
Summary of the invention
The objective of the invention is to overcome in the prior art super capacitor energy management system is adopted the hand inspection method, need the mode of operation of offline inspection super capacitor, the drawback that takes time and effort, a kind of stable super capacitance energy management system of electric motorcar based on the CAN bus that can fast, correctly find the fault super capacitor, help Full Vehicle System is provided.
The super capacitance energy management system of electric motorcar that the present invention is based on the CAN bus is designed to a tested module with every N monomer super capacitor, by voltage and the state of temperature that detects each tested module, judges whether normal operation of car load energy system.
The concrete technical solution of the present invention is as follows:
The present invention is based on the super capacitance energy management system of electric motorcar of CAN bus, comprise two capacitive energy detection module CAN bus nodes and a display module CAN bus node, capacitive energy detection module CAN bus node comprises micro controller module, voltage measurement module, temperature-measuring module, micro controller module is made up of microprocessor chip and peripheral cell thereof, has AD interface, digital I/O interface and CAN interface, the voltage and the temperature signal of corresponding way gathered in design, and carries out data transmission by CAN interface and other parts of car load; Voltage measurement module is connected to the AD interface of microcontroller, and temperature collect module connects the digital I/O mouth that is sent to microcontroller; Display module CAN bus node is connected with capacitive energy detection module CAN bus node by the CAN bus, receives the signal from the capacitive energy detection module, and shows on read-out and gauge panel;
Voltage measurement module, the voltage sensor that comprises the tested module voltage difference of gathering every N monomer super capacitor formation, the voltage sensor series connection is sent to voltage transformer, be connected to the AD interface of microcontroller, the voltage difference of gathering each capacitive energy detection module by voltage transformer by discharge circuit;
Temperature-measuring module comprises the temperature sensor of the capacitive energy detection module temperature of gathering every N monomer super capacitor formation, and temperature sensor adopts the digital temperature chip, directly digital signal is connected the digital I/O mouth that is sent to microcontroller.
Above-mentioned micro controller module is realized following control flow:
At first receive from the information on the CAN bus during start, judge whether the instruction of other CAN nodes;
If do not have, then begin to detect the voltage and the temperature of super-capacitor module, and judge whether in normal range;
Super-capacitor module voltage and temperature data with detecting are sent to display system by the CAN bus, show correspondent voltage, temperature value and alerting signal.
The present invention is a kind of super capacitor energy management system of the electronlmobil based on the CAN bus, total system is made of microcontroller, voltage detecting, temperature detection, display module, utilizing microcontroller to gather voltage and temperature signal judges the mode of operation of super capacitor and gives a forecast, can fast, correctly find the fault super capacitor, help the stable of Full Vehicle System, system joins by CAN interface and car load other control system.
Description of drawings
Fig. 1 is that the super capacitor energy management system that the present invention is based on the electronlmobil of CAN bus is formed car load CAN bus communication system The general frame with other Control Node;
Fig. 2 is the super capacitor energy management system node interface schematic diagram that the present invention is based on the electronlmobil of CAN bus;
Fig. 3 is the micro controller module schematic diagram;
Fig. 4 is the voltage measurement module schematic diagram;
Fig. 5 is the temperature-measuring module schematic diagram;
Fig. 6 is the super capacitor energy management system control flow chart based on the electronlmobil of CAN bus.
The specific embodiment
Below with reference to Fig. 1-6, specify technical scheme of the present invention by embodiment, but the present invention is not limited to following examples.
Present embodiment comprises two capacitive energy management CAN bus nodes and a demonstration CAN bus node based on the super capacitance energy management system of electric motorcar of CAN bus.Capacitive energy detects the CAN bus node and comprises micro controller module, voltage measurement module, temperature-measuring module.Micro controller module has AD interface, digital I/O interface and CAN interface by processor chips and peripheral composition the thereof, can gather 20 road voltages and 40 road temperature signals, and carry out data transmission by CAN interface and other parts of car load; Voltage measurement module, the voltage sensor that comprises the tested module voltage difference of gathering every N monomer super capacitor formation, the voltage sensor series connection is sent to voltage transformer, be connected to the AD interface of microcontroller, the voltage difference of gathering each capacitive energy detection module by voltage transformer by discharge circuit; Temperature-measuring module comprises the temperature sensor of the capacitive energy detection module temperature of gathering every N monomer super capacitor formation, temperature sensor is a line system digital temperature sensor, adopt the digital temperature chip, directly digital signal is connected the digital I/O mouth that is sent to microcontroller.Display module CAN bus node passes through the signal of CAN bus reception from the capacitive energy detection module, and shows on read-out and gauge panel.
As shown in Figure 1, adopt two energy management nodes 1 and energy management node 2 at the electric automobile energy management system, form car load CAN bus communication system with other control modules, and the CAN bus system of car load adopts single CAN bus architecture, compare with dual CAN bus, reduced cost.
As shown in Figure 2, the super capacitor energy management system node based on the electronlmobil of CAN bus is divided into three parts: 20 tunnel voltage signal acquisition, 40 road temperature signal collections, CAN bus interface.
Fig. 3-Fig. 5 has provided microcontroller, voltage measurement, thermometric fundamental diagram respectively.Microcontroller adopts analog digital mixings integrated chip, and this controller has abundant analog input channel and digital interface, and has a CAN bus interface, need not just can realize and the communicating by letter of outside CAN bus with expanding the CAN control chip.
Be illustrated in figure 6 as control flow based on the super capacitor energy management system of the electronlmobil of CAN bus.At first receive during start from the content on the CAN bus, judge whether the instruction of other CAN nodes, if do not have, then begin to detect the voltage and the temperature of super-capacitor module, and judge whether in normal range, and, show correspondent voltage, temperature value and alerting signal by the total wire joint display system of CAN.
The present embodiment energy management system has following basic function:
1, the voltage and the temperature of every Battery pack of the super electric energy energy system of electronlmobil are gathered in real time, set up the working process archives of every Battery pack.
When 2, battery need charge, in time report to the police, prevent battery over-discharge and influence the life-span.
3, in vehicle traveling process, the module that auto alarm damages is so that in time change.
4, has the CAN interface, convenient and other module communications of car load.
Claims (5)
1. based on the super capacitance energy management system of electric motorcar of CAN bus, it is characterized in that, comprise two capacitive energy detection module CAN bus nodes, a display module CAN bus node, each capacitive energy detection module CAN bus node includes micro controller module, voltage measurement module, temperature-measuring module, each micro controller module is formed by microprocessor chip and peripheral cell thereof, has the AD interface, numeral I/O interface and CAN interface, be connected by other parts of CAN interface and car load and carry out data transmission, each voltage measurement module is connected to the AD interface of micro controller module, and each temperature-measuring module connects the digital I/O mouth that is sent to micro controller module; Display module CAN bus node is connected with capacitive energy detection module CAN bus node by the CAN bus.
2. according to the described super capacitance energy management system of electric motorcar of claim 1 based on the CAN bus, it is characterized in that, each voltage measurement module, the voltage sensor that comprises the tested module voltage difference of gathering every N monomer super capacitor formation, the voltage sensor series connection is sent to voltage transformer, be connected to the AD interface of micro controller module, the voltage difference of gathering each capacitive energy detection module by voltage transformer by discharge circuit.
3. according to the described super capacitance energy management system of electric motorcar of claim 1 based on the CAN bus, it is characterized in that, each temperature-measuring module comprises the temperature sensor of the capacitive energy detection module temperature of gathering every N monomer super capacitor formation, temperature sensor adopts the digital temperature chip, directly digital signal is connected the digital I/O mouth that is sent to micro controller module.
4. according to the described super capacitance energy management system of electric motorcar of claim 1, it is characterized in that described micro controller module is realized following control flow based on the CAN bus:
At first receive from the information on the CAN bus during start, judge whether the instruction of other CAN nodes;
If do not have, then begin to detect the voltage and the temperature of super-capacitor module, and judge whether in normal range;
Super-capacitor module voltage and temperature data with detecting are sent to display system by the CAN bus, show correspondent voltage, temperature value and alerting signal.
5. according to the described super capacitance energy management system of electric motorcar of claim 3 based on the CAN bus, it is characterized in that, adopt CAN bus communication mode, micro controller module design CAN node, each design of node is gathered 20 tunnel analog signals, 40 way word signals adopt a line system digital temperature sensor.
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| CN2008100137687A CN101224712B (en) | 2008-01-11 | 2008-01-11 | Super capacitance energy management system of electric motorcar based on CAN bus |
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| CN2008100137687A CN101224712B (en) | 2008-01-11 | 2008-01-11 | Super capacitance energy management system of electric motorcar based on CAN bus |
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| CN101224712B true CN101224712B (en) | 2011-10-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102445662A (en) * | 2010-10-13 | 2012-05-09 | 北汽福田汽车股份有限公司 | Single battery information collecting device and battery information collecting system |
| CN102033532A (en) * | 2010-11-23 | 2011-04-27 | 山东天海电装有限公司 | Bus control system for new energy automobile |
| DE102011014883B3 (en) * | 2011-03-23 | 2012-04-26 | Festo Ag & Co. Kg | Bus node and control system for controlling a working device |
| CN102729835A (en) * | 2012-06-05 | 2012-10-17 | 郑州宇通客车股份有限公司 | Vehicle-mounted supercapacitor management system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN2806226Y (en) * | 2005-07-07 | 2006-08-16 | 沈阳理工大学 | Hybrid electric automobile assembly control device |
| CN201153267Y (en) * | 2008-01-11 | 2008-11-19 | 上海中上汽车科技有限公司 | Super capacitor energy management system for electric automobile based on CAN bus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806226Y (en) * | 2005-07-07 | 2006-08-16 | 沈阳理工大学 | Hybrid electric automobile assembly control device |
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN201153267Y (en) * | 2008-01-11 | 2008-11-19 | 上海中上汽车科技有限公司 | Super capacitor energy management system for electric automobile based on CAN bus |
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| Title |
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| JP特开2006-54958A 2006.02.23 |
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