CN201989631U - Lead-acid storage battery remaining capacity monitoring device - Google Patents
Lead-acid storage battery remaining capacity monitoring device Download PDFInfo
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- CN201989631U CN201989631U CN2011200656756U CN201120065675U CN201989631U CN 201989631 U CN201989631 U CN 201989631U CN 2011200656756 U CN2011200656756 U CN 2011200656756U CN 201120065675 U CN201120065675 U CN 201120065675U CN 201989631 U CN201989631 U CN 201989631U
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- motor controller
- controller
- storage battery
- lead
- key switch
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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
- 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
Abstract
The utility model relates to a lead-acid storage battery remaining capacity monitoring device of an alternating-current electric forklift, which comprises a power supply, a key switch, a main contactor, a main controller, a traction motor controller and a pump motor controller, wherein the power supply is respectively connected with the key switch, the input end of the main contractor, the main controller and the power end of an instrument; the output end of the key switch is respectively parallel-connected with the logical power ports of the traction motor controller and the pump motor controller; the output end of the main contractor is connected with the power positive power ends of the traction motor controller and the pump motor controller; and the main controller, the traction motor controller, the pump motor controller and the instrument are connected through a controller area network (CAN) communication line. The lead-acid storage battery remaining capacity monitoring device is characterized in that the output end of the key switch is additionally connected with a DI_1 port arranged on the main controller. The lead-acid storage battery remaining capacity monitoring device has the advantages that the device is simple to upgrade and is convenient, rapid and effective to operate; and the problem that the storage battery remaining capacity cannot be displayed accurately is fundamentally solved and the application scope is wide.
Description
Technical field
The utility model belongs to the AC electrical forklift technical field, is specifically related to the lead-acid storage battery residual capacity monitoring device of AC electrical forklift.
Background technology
Lead-acid batteries is the closed-center system of electri forklift, is the key factor that influences vehicle performance.In the battery operated process, the serious overbalance of monomer voltage, overdischarge, overcharge, the overheated storage capacity and the cycle life that all can have influence on battery, also can produce direct influence to the performances such as work-hours, acceleration capacity and max. climb slope of car load.When accumulator capacity drops to a certain degree, will point out the charging of reporting to the police, battery remaining power determine concerning battery management system, to have important effect.Battery remaining power can not directly obtain, can only be by to the external characteristic of battery---and voltage (U), electric current (I), internal resistance (R), temperature parameters such as (t) are inferred the size of battery remaining power.More than the relation of these parameters and battery remaining power change with the process of cell degradation, contain a lot of uncertain factors in the middle of this.The lead-acid storage battery residual capacity accurately and is efficiently estimated a gordian technique that has become the electri forklift field.On the complete in early days AC electrical forklift market, battery tension occurs and detect the excessive feedback of error, the concrete phenomenon of reflection is: 1, refresh not prompt enough, occur showing 0% phenomenon once in a while, but can refresh very soon and show normally.2, the battery remaining power demonstration suddenlys change to 80% by 40%, and the recovery battery remaining power demonstration of successively decreasing afterwards suddenlys change to 80% the recovery of successively decreasing afterwards by 45%.3, the beginning battery remaining power skips to 93% by 30%, afterwards decay.4, not charging, switch power supply again after under-voltage protection half an hour, battery remaining power shows 95% again unexpectedly.
More than these phenomenons all belong to the battery remaining power monitoring problem.It is inaccurate that electric weight shows, caused very big puzzlement to the user, and the electricity quantity display module on the AC electrical forklift is to mate according to the discharge characteristic of import storage battery, do not match with homemade storage battery.Therefore, be badly in need of a kind of homemade lead-acid storage battery residual capacity monitoring device that is used on the AC electrical forklift, homemade lead-acid storage battery is carried out rational and effective management and control.
The utility model content
For the problem that the homemade lead-acid storage battery residual capacity monitoring that solves on the existing AC electrical forklift produces, original lead-acid storage battery residual capacity monitoring device is carried out pattern optimization, improve Applicable scope.The utility model provides a kind of lead-acid storage battery residual capacity monitoring device of AC electrical forklift.
Concrete technical solution is as follows:
Lead-acid storage battery residual capacity monitoring device comprises power supply 1, key switch 2, main contactor 3, master controller 4, traction motor controller 5, pump motor controller 6, instrument 7 and CAN connection 8; Power supply 1 links to each other with input end, master controller 4 and the power end of instrument 7 of key switch 2, main contactor 3 respectively; Key switch 2 mouths walk abreast with traction motor controller 5, pump motor controller 6 logic power ports respectively and are connected; Main contactor 3 mouths link to each other with traction motor controller 5, pump motor controller 6 power positive power source terminals; Connect by CAN connection 8 between master controller 4, traction motor controller 5, pump motor controller 6, the instrument 7; Its improvement is: key switch 2 mouths also are connected with the DI_1 port that master controller 4 is provided with.
Useful technique effect of the present utility model is:
1, upgrading is simple, easy to operate, effective and rapid; Fundamentally solved the not high problem of accuracy rate that the storage battery dump energy shows, the reliability height.
2, the characteristics that have applied range are applicable to all electri forklifts; Improved the car load cost performance.
3, avoid lead-acid storage battery fully discharge or over discharge use, thereby improve lead-acid battery service life.
Description of drawings
Fig. 1 is the utility model principle of work block diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, AC electrical forklift lead-acid storage battery residual capacity monitoring device is to determine the residual capacity of lead-acid storage battery by detecting accumulator voltage, master controller is controlled the traction motor controller of electri forklift and the output state of pump motor controller according to storage battery dump energy state, thereby the operation to car load is controlled, its objective is avoid lead-acid storage battery fully discharge or over discharge use, thereby improve lead-acid battery service life.
Lead-acid storage battery residual capacity monitoring device comprises power supply 1, key switch 2, main contactor 3, master controller 4, traction motor controller 5, pump motor controller 6, instrument 7 and CAN connection 8; Power supply 1 links to each other with input end, master controller 4 and the power end of instrument 7 of key switch 2, main contactor 3 respectively; Key switch 2 mouths walk abreast with traction motor controller 5, pump motor controller 6 logic power ports respectively and are connected; Main contactor 3 mouths link to each other with traction motor controller 5, pump motor controller 6 power positive power source terminals; Connect by CAN connection 8 between master controller 4, traction motor controller 5, pump motor controller 6, the instrument 7; Its improvement is: key switch 2 mouths also are connected with the DI_1 port that master controller 4 is provided with.
When key switch 2 closures, master controller 4, traction motor controller 5, pump motor controller 6 begins built in self testing simultaneously, after self check is finished, main contactor 3 closures, power supply is sent into traction motor controller 5, the power positive pole of pump motor controller 6, when traction motor controller 5, during 6 work of pump motor controller, the electric weight of meeting electric consumption 1, cause the terminal voltage of power supply 1 to reduce, this moment the real-time Monitoring Line voltage of DI_1 port on the master controller 4, then magnitude of voltage is converted into the bar shaped lattice, is transferred on the instrument 7, show battery dump energy by the CAN connection.When battery dump energy was not enough, to traction motor controller 5, pump motor controller 6 sending controling instructions, exported by the power of restriction traction motor controller 5 pump motor controllers 6 by CAN connection 8 for master controller 4.
The battery remaining power state is represented by 10 bar shaped lattice on the instrument.During full charge, show ten grids, the minimizing with the storage battery dump energy progressively disappears then, has put electricity until storage battery, and last lattice begin flicker, and the expression storage battery has begun overdischarge, and controller enters the under-voltage protection state.
The terminal voltage signal that obtains battery by monitoring device is converted into the detection node data by microprocessor, and the corresponding again traction accumulator residual capacity parameter point that draws of detection node data improves the battery monitoring system accuracy.The voltage monitoring point magnitude of voltage is converted to battery remaining power such as following table:
| Magnitude of voltage (V) | The bright lattice of instrument | Battery remaining power |
| 50.4 | 10 | 100% |
| 46.32 | 9 | 90% |
| 45.24 | 8 | 80% |
| 44.16 | 7 | 70% |
| 42.88 | 6 | 60% |
| 41.616 | 5 | 50% |
| 40.48 | 3 | 40% |
| 40.8 | 4 | 30% |
| 39.36 | 2 | 20% |
| 38.52 | 1 | 10% |
| 37.68 | 0 | 0% |
Program function:
(1) when changing the storage battery of different state of charge, after requirement refreshed through per 3 minutes detection, instrument can show the battery remaining power that is in the main true;
(2) battery remaining power is reduced to 22～30%(notes: occurrence can be set) time, traction motor controller (5), pump motor controller (6) outgoing current reduce, battery LED on the instrument (7) is bright simultaneously, and prompting user battery dump energy deficiency is prepared charging;
(3) battery remaining power is reduced to 10～20%(notes: occurrence can be set) time, instrument shows alarm, and spanner LED dodges the ring prompting, and with the lifting functions shutoff of pump motor controller (6), force users is in time charged;
(4) battery remaining power can be followed the change of voltage of battery.
Claims (1)
1. lead-acid storage battery residual capacity monitoring device comprises power supply (1), key switch (2), main contactor (3), master controller (4), traction motor controller (5), pump motor controller (6), instrument (7) and CAN connection (8); Power supply (1) links to each other with input end, master controller (4) and the power end of instrument (7) of key switch (2), main contactor (3) respectively; Key switch (2) mouth walks abreast with traction motor controller (5), pump motor controller (6) logic power port respectively and is connected; Main contactor (3) mouth links to each other with traction motor controller (5), pump motor controller (6) power positive power source terminal; Connect by CAN connection (8) between master controller (4), traction motor controller (5), pump motor controller (6), the instrument (7); It is characterized in that: key switch (2) mouth also is connected with the DI_1 port that master controller (4) is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656756U CN201989631U (en) | 2011-03-15 | 2011-03-15 | Lead-acid storage battery remaining capacity monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656756U CN201989631U (en) | 2011-03-15 | 2011-03-15 | Lead-acid storage battery remaining capacity monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989631U true CN201989631U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200656756U Expired - Lifetime CN201989631U (en) | 2011-03-15 | 2011-03-15 | Lead-acid storage battery remaining capacity monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201989631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890191A (en) * | 2012-10-19 | 2013-01-23 | 浙江省电力公司电力科学研究院 | System and method for metering electric power consumption of electric automobile |
| CN111077458A (en) * | 2019-12-31 | 2020-04-28 | 视航机器人（佛山）有限公司 | Forklift battery state monitoring method and device, embedded equipment and storage medium |
-
2011
- 2011-03-15 CN CN2011200656756U patent/CN201989631U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890191A (en) * | 2012-10-19 | 2013-01-23 | 浙江省电力公司电力科学研究院 | System and method for metering electric power consumption of electric automobile |
| CN111077458A (en) * | 2019-12-31 | 2020-04-28 | 视航机器人（佛山）有限公司 | Forklift battery state monitoring method and device, embedded equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |