CN103904730A - Intelligent management system for electric vehicle lithium battery - Google Patents
Intelligent management system for electric vehicle lithium battery Download PDFInfo
- Publication number
- CN103904730A CN103904730A CN201410080442.1A CN201410080442A CN103904730A CN 103904730 A CN103904730 A CN 103904730A CN 201410080442 A CN201410080442 A CN 201410080442A CN 103904730 A CN103904730 A CN 103904730A
- Authority
- CN
- China
- Prior art keywords
- circuit
- management system
- intelligent management
- lithium battery
- electric vehicle
- 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
Links
Images
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an intelligent management system for an electric vehicle lithium battery. The intelligent management system can effectively monitor the discharging process and the short circuit phenomenon. The intelligent management system comprises a battery sampling circuit, a main control circuit, an electric quantity display circuit, a charging circuit, a discharging circuit and a charging detection circuit. The battery sampling circuit, the electric quantity display circuit, the charging circuit, the discharging circuit and the charging detection circuit are connected with the main control circuit, and the main control circuit is further connected with the discharging detection circuit and the short circuit detection circuit. The discharging detection circuit and the short circuit detection circuit are arranged, so that the discharging process and the short circuit condition are effectively monitored, and service life of the lithium battery is prolonged.
Description
Technical field
The present invention relates to a kind of lithium battery intelligent management system, refer more particularly to electric vehicle lithium battery intelligent management system.
Background technology
At present, traditional electric vehicle lithium battery intelligent management system, its structure is comparatively simple, generally include battery sampling circuit, governor circuit, electric quantity display circuit, charging circuit, discharge circuit and charging detecting circuit, described battery sampling circuit, electric quantity display circuit, charging circuit and discharge circuit are all connected with governor circuit.In actual use, due to discharge detection circuit and short-circuit detecting circuit not being set, can not carry out effective monitoring to discharge process and short-circuit conditions, often occur letting slip head and short circuit phenomenon, have influence on the useful life of lithium battery.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of can effective monitoring discharge process and the electric vehicle lithium battery intelligent management system of short circuit phenomenon.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of electric vehicle lithium battery intelligent management system, comprise: battery sampling circuit, governor circuit, electric quantity display circuit, charging circuit, discharge circuit and charging detecting circuit, described battery sampling circuit, electric quantity display circuit, charging circuit, discharge circuit and charging detecting circuit are all connected with governor circuit, and described governor circuit is also connected with discharge detection circuit and short-circuit detecting circuit.
Described governor circuit is also connected with undervoltage detection circuit and undervoltage warning circuit.
Described undervoltage warning circuit is voice alarm circuit.
Described governor circuit is also connected with data transmit circuit.
Described data transmit circuit is infrared transmitting circuit.
The invention has the beneficial effects as follows: the present invention, by discharge detection circuit and short-circuit detecting circuit are set, monitors discharge process and short-circuit conditions effectively, has extended the useful life of lithium battery.In addition, this electric vehicle lithium battery intelligent management system is also provided with undervoltage detection circuit and undervoltage warning circuit, reminds in time operating personnel, has effectively avoided circuit to work under under-voltage situation; In addition, also set up infrared transmitting circuit, can transfer easily the historical data of memory battery pack, thereby adjusted and discharge and recharge parameter targetedly, further extended the useful life of lithium battery.
Accompanying drawing explanation
Fig. 1 is electric theory structure schematic diagram of the present invention.
Reference numeral in Fig. 1 is: 1, governor circuit, 2, battery sampling circuit, 3, infrared transmitting circuit, 5, charging detecting circuit, 6, short-circuit detecting circuit, 7, discharge detection circuit, 4, undervoltage detection circuit, 8, undervoltage warning circuit, 9, electric quantity display circuit, 10, key press detecting circuit, 11, charging circuit, 12, discharge circuit.
Fig. 2 is the local electrical schematic diagram corresponding with Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiment of the invention scheme in detail.
As shown in Figure 1, a kind of electric vehicle lithium battery intelligent management system of the present invention, comprising: governor circuit 1 and the battery sampling circuit 2 being attached thereto, governor circuit 1, electric quantity display circuit 9, charging circuit 11, discharge circuit 12, charging detecting circuit 5, short-circuit detecting circuit 6, discharge detection circuit 7, undervoltage detection circuit 4 and undervoltage warning circuit 8 and the infrared transmitting circuit 3 as data transmit circuit; In the present embodiment, described undervoltage warning circuit 8 is voice alarm circuit, uses convenient.
In actual application, electric vehicle lithium battery intelligent management system of the present invention has adopted the circuit of structure shown in Fig. 2, in this circuit, adopt the scheme of battery management special chip BQ76940 and a single-chip microcomputer MB95FKPMC of low-power consumption Fujitsu of TI, compare scheme general on market, there is the features such as degree of intelligence is high, control precision is high, cost is low.
When real work, the voltage signal on the inspection leakage resistance corresponding with battery B1～B10 inputs to U2BQ76940 through low-pass filter circuit, and the high-precision adc of U2 inside converts voltage analog signal after digital signal to, through I
2c communication exports single-chip microcomputer to; Alarm signal output when U2 the 44th pin detects that as BQ76940 battery has the protection events such as over-voltage and over-current to occur; The multiplexing wake-up signal input function of the 6th pin TS1 of U2, for waking BQ76940 up; U2 the 1st pin and the 2nd pin are that discharge tube and the charging valve of chip output drives signal.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (5)
1. an electric vehicle lithium battery intelligent management system, comprise: battery sampling circuit, governor circuit, electric quantity display circuit, charging circuit, discharge circuit and charging detecting circuit, described battery sampling circuit, electric quantity display circuit, charging circuit, discharge circuit and charging detecting circuit are all connected with governor circuit, it is characterized in that: described governor circuit is also connected with discharge detection circuit and short-circuit detecting circuit.
2. electric vehicle lithium battery intelligent management system according to claim 1, is characterized in that: described governor circuit is also connected with undervoltage detection circuit and undervoltage warning circuit.
3. electric vehicle lithium battery intelligent management system according to claim 2, is characterized in that: described undervoltage warning circuit is voice alarm circuit.
4. according to the electric vehicle lithium battery intelligent management system described in claim 1,2 or 3, it is characterized in that: described governor circuit is also connected with data transmit circuit.
5. electric vehicle lithium battery intelligent management system according to claim 4, is characterized in that: described data transmit circuit is infrared transmitting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080442.1A CN103904730A (en) | 2014-03-06 | 2014-03-06 | Intelligent management system for electric vehicle lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080442.1A CN103904730A (en) | 2014-03-06 | 2014-03-06 | Intelligent management system for electric vehicle lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103904730A true CN103904730A (en) | 2014-07-02 |
Family
ID=50995929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410080442.1A Pending CN103904730A (en) | 2014-03-06 | 2014-03-06 | Intelligent management system for electric vehicle lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103904730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203103A (en) * | 2018-02-07 | 2019-09-06 | 李伯才 | Suitable for calculating electric vehicle power management system, working method and the electric vehicle of stroke |
| CN111525644A (en) * | 2020-04-30 | 2020-08-11 | 北京东方振动和噪声技术研究所 | Battery management system and battery management method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201349126Y (en) * | 2008-09-23 | 2009-11-18 | 陈赖容 | Protective circuit board of lead-acid battery pack for electrically driven vehicle |
| CN203398771U (en) * | 2013-07-31 | 2014-01-15 | 向智勇 | Over-current and over-voltage protection circuit for electronic cigarette |
-
2014
- 2014-03-06 CN CN201410080442.1A patent/CN103904730A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201349126Y (en) * | 2008-09-23 | 2009-11-18 | 陈赖容 | Protective circuit board of lead-acid battery pack for electrically driven vehicle |
| CN203398771U (en) * | 2013-07-31 | 2014-01-15 | 向智勇 | Over-current and over-voltage protection circuit for electronic cigarette |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203103A (en) * | 2018-02-07 | 2019-09-06 | 李伯才 | Suitable for calculating electric vehicle power management system, working method and the electric vehicle of stroke |
| CN111525644A (en) * | 2020-04-30 | 2020-08-11 | 北京东方振动和噪声技术研究所 | Battery management system and battery management method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204154825U (en) | A kind of alternating-current charging pile failure detector | |
| CN104731044A (en) | Lithium battery pile dynamic monitoring and management system | |
| CN102375125B (en) | Intelligent electromobile battery detector | |
| CN201466500U (en) | Multifunctional intelligent power distribution box | |
| CN202512170U (en) | Intelligent ammeter communication module circuit structure having power-off protection function | |
| CN103944250A (en) | Battery passivation preventing circuit of single-phase intelligent electric energy meter | |
| CN104467040A (en) | Vehicle-mounted uninterruptible power supply (UPS) storage battery control and management device | |
| CN208452826U (en) | Battery management system | |
| CN103227350A (en) | Intelligent battery management system and method for medical equipment | |
| CN203871447U (en) | Power battery with early warning function | |
| CN202260534U (en) | Battery voltage and temperature acquisition apparatus | |
| CN204155435U (en) | A kind of wireless temperature acquisition system | |
| CN203377625U (en) | Communication lithium iron phosphate battery intelligent management device | |
| CN103904730A (en) | Intelligent management system for electric vehicle lithium battery | |
| CN103762623B (en) | A kind of lithium battery management system integrated circuit | |
| CN108819752A (en) | Battery management system | |
| TW201838286A (en) | Synchronous control system architecture with improved energy saving efficiency remotely monitors battery state of multiple sub-systems real-time | |
| CN204479662U (en) | A kind of lightning arrester service data pen recorder | |
| CN203536994U (en) | Vehicle-mounted uninterruptible power supply storage battery control and management device | |
| CN204118821U (en) | A kind of electric bike battery charge protection device | |
| CN203798940U (en) | Wireless real-time fault monitoring system | |
| CN202975280U (en) | Measurement and control system for storage batteries | |
| CN205159420U (en) | Battery short distance wireless data collection system | |
| CN203812997U (en) | Accumulator remote maintenance system | |
| CN204216669U (en) | A kind of interchange monitoring unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |