CN203688779U - Display instrument of battery vehicle - Google Patents
Display instrument of battery vehicle Download PDFInfo
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- CN203688779U CN203688779U CN201320867186.1U CN201320867186U CN203688779U CN 203688779 U CN203688779 U CN 203688779U CN 201320867186 U CN201320867186 U CN 201320867186U CN 203688779 U CN203688779 U CN 203688779U
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- battery
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- instrument display
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- 230000005611 electricity Effects 0.000 claims abstract description 30
- 230000011218 segmentation Effects 0.000 claims description 25
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a display instrument of a battery vehicle. The display instrument comprises at least one group of battery cell, a current sensor, an MCU, an instrument display and an electricity display sectional calculating circuit, wherein an input end of the current sensor is connected with the battery cell, and an output end is connected with an input end of the electricity display sectional calculating circuit; the input end of the electricity display sectional calculating circuit is further connected with the battery cell, the electricity display sectional calculating circuit monitors the current inflow and outflow time of the battery cell and divides the capacity of the battery cell into a plurality equal divisions, and an output end of the electricity display sectional calculating circuit is connected with the MCU; and the MCU is connected with the instrument display, the MCU converts the corresponding equal division number of the remaining battery capacity into residual running mileage and transmits the residual running mileage to the instrument display, and the residual running mileage is displayed by the instrument display. The display instrument actually reflects the running mileage of the vehicle, and cannot delay the journey of the driver.
Description
Technical field
The utility model relates to a kind of Displaying Meter, refers in particular to a kind of Displaying Meter of the battery vehicles.
Background technology
In prior art, the Displaying Meter of the battery vehicles adopts cell voltage as showing data, to inform user's battery general service time conventionally.But, because battery exists back pressure phenomenon, be that battery is in the time of reaction, the ion on both positive and negative polarity surface is owing to first reacting, thereby makes the ion concentration of electrode surface lower than the ion concentration of electrolytic solution main body, in the time that reaction finishes, it is consistent that ion concentration can slowly become, because ion is charged, when while causing reaction, electrode potential is from balance, electrode potential is different, occurs back pressure phenomenon.
Therefore,, when battery discharge, the voltage that external circuit obtains will be lower than the voltage of battery.Hence one can see that, and voltage cannot know as the demonstration data of the Displaying Meter of the battery vehicles how long battery can also use, and more cannot know how many mileages that can also travel.
Utility model content
The purpose of this utility model is to provide a kind of Displaying Meter of the battery vehicles, by showing battery meter, with the accurate distance travelled of electrolytic cell.
For reaching above-mentioned purpose, solution of the present utility model is:
A Displaying Meter for the battery vehicles, comprises the aobvious segmentation counting circuit of at least one Battery pack battery core, current sense, MCU, instrument display and electricity; The input end of current sense is connected with battery battery core, the electric current of Real-Time Monitoring battery battery core, and output terminal is connected with the input end of the aobvious segmentation counting circuit of electricity; The input end of the aobvious segmentation counting circuit of electricity is also connected with battery battery core, the electric current inflow and outflow time of the aobvious segmentation counting circuit monitoring of this electricity battery battery core, the capacity of battery battery core is divided into multiple deciles, the output termination MCU of the aobvious segmentation counting circuit of electricity simultaneously; The initial cells capacity of the pre-stored dissimilar battery battery core of MCU, mileage and mileage corresponding to each decile battery capacity that this initial cells capacity is corresponding; The outflow of bus current time conversion of aobvious to the electric current of current sense Real-Time Monitoring and electricity segmentation counting circuit monitoring is become consuming cells capacity by MCU, deducts consuming cells capacity be remaining battery capacity with initial cells capacity; MCU connects instrument display, and isodisperse corresponding remaining battery capacity is converted into residual running mileage by MCU, and is transferred to instrument display, is shown by instrument display.
Further, also comprise velocity pick-up, this velocity pick-up is connected with MCU, and velocity pick-up detects the speed of the vehicles in real time, and signal is transferred to MCU; Remaining battery capacity and real-time speed are converted into real-time residual running mileage by MCU, and be transferred to instrument display, shown by instrument display.
Further, also comprise driving and detection power device, two-way controlled power device; The input end of two-way controlled power device is connected with battery battery core, controls the charge and discharge of battery battery core, and output terminal is connected with the input end of driving and detection power device, and this driving and detection power device are for driving and detect two-way controlled power device; The aobvious segmentation counting circuit of output termination electricity of two-way controlled power device.
Further, described battery battery core is by the parallel connection of many Battery packs battery core, and each battery battery core is connected with MCU by ID Communication Control circuit respectively, the battery capacity of multiple battery battery cores is transferred in order instrument display by MCU, jump in order aobvious by instrument display, or, the battery capacity of multiple battery battery cores is transferred to instrument display simultaneously, separately shown individually by instrument display.
Adopt after such scheme, the outflow of bus current time conversion of aobvious to the electric current of current sense Real-Time Monitoring and electricity segmentation counting circuit monitoring is become consuming cells capacity by the utility model MCU, deducts consuming cells capacity be remaining battery capacity with initial cells capacity; Then isodisperse corresponding remaining battery capacity is converted into residual running mileage, and is transferred to instrument display, shown by instrument display.Therefore, what instrument display showed is real-time battery capacity and mileage, truly reflects vehicles mileage, can not incur loss through delay driver's stroke.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is another example structure schematic diagram of the present utility model.
Label declaration
Aobvious segmentation counting circuit 3 MCU4 of electricity
Instrument display 5 drives and detection power device 6
Two-way controlled power device 7 ID Communication Control circuits 8.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Consult shown in Fig. 1, the Displaying Meter of a kind of battery vehicles that the utility model discloses, comprises at least one Battery pack battery core 1, current sense 2, electricity aobvious segmentation counting circuit 3, MCU4 and instrument display 5.
The input end of current sense 2 is connected with battery battery core 1, the electric current of Real-Time Monitoring battery battery core, and output terminal is connected with the input end of the aobvious segmentation counting circuit 3 of electricity, and the aobvious segmentation counting circuit 3 of electricity has calculation function, controls function and calendar scheduling function.
The input end of the aobvious segmentation counting circuit 3 of electricity is also connected with battery battery core 1, and the aobvious segmentation counting circuit 3 of this electricity is monitored the electric current inflow and outflow time of battery battery core 1, the capacity of battery battery core 1 is divided into multiple deciles simultaneously, and normally district is segmented into 100 deciles.
The output termination MCU4 of the aobvious segmentation counting circuit 3 of electricity, the initial cells capacity of the pre-stored dissimilar battery battery core 1 of MCU4, mileage and mileage corresponding to each decile battery capacity that this initial cells capacity is corresponding; The outflow of bus current time conversion that MCU4 monitors aobvious to the electric current of current sense 2 Real-Time Monitorings and electricity segmentation counting circuit 3 becomes consuming cells capacity, deducts consuming cells capacity be remaining battery capacity with initial cells capacity; MCU4 connects instrument display 5, and isodisperse corresponding remaining battery capacity is converted into residual running mileage by MCU4, and is transferred to instrument display 5, is shown by instrument display 5.
Residual running mileage converts as follows: by motor rated power ÷ rated voltage=rated current, calculate the electric current of motor in optimum efficiency point, be set as steady current; Accordingly, by detecting dissimilar battery battery core to motor discharge time, by rated current × discharge time=battery capacity; Then, under rated current, record the maximum speed of motor; By π tire radius × 60, rotating speed × 2 minute=km number per hour; Battery capacity ÷ steady current × km number per hour=can stroke mileage, calculate the initial mileage number of the vehicles.
Initial cells capacity region is divided into multiple deciles as 100 timesharing such as grade, as battery capacity 10Ah ÷ 100=0.1 Ah, accordingly, vehicles mileage district is segmented into 100 deciles, as 20 km ÷ 100=0.2 kms, acquired results, every 0.1 Ah(1 percent deciles of the vehicles in optimum efficiency) wheeled 0.2 km, wherein, mileage number 20 kms=battery capacity 10Ah ÷ steady current 20A × 40 kms per hour.When power of motor becomes large, steady current rises, and battery capacity is accelerated discharge time, 100 deciles are accelerated to reduce, and mileage is shortening, as one of former 0.1Ah(percentage relatively) wheeled 0.2 km, existing 0.2 Ah(2 percent) 0.2 km that just travels, mileage only has 10 kms.
For further showing real-time residual running mileage, the utility model also comprises velocity pick-up (not shown), and this velocity pick-up is connected with MCU4, and velocity pick-up detects the speed of the vehicles in real time, and signal is transferred to MCU4; Remaining battery capacity and real-time speed are converted into real-time residual running mileage by MCU4, and be transferred to instrument display, shown by instrument display.Residual running mileage converts as follows in real time: remaining battery capacity ÷ steady current × real-time speed=residual running mileage in real time.
For controlling battery battery core charging and electric discharge is switched, the utility model also comprises and driving and detection power device 6, two-way controlled power device 7.The input end of two-way controlled power device 7 is connected with battery battery core 1, control the charge and discharge of battery battery core 1, output terminal is connected with the input end of driving and detection power device 6, and this driving and detection power device 6 are for driving and detect two-way controlled power device 7; The aobvious segmentation counting circuit 6 of output termination electricity of two-way controlled power device 7.
As described in Figure 2, described battery battery core 1 is by multiple battery battery core 1 parallel connections, and each battery battery core 1 is connected with MCU4 by ID Communication Control circuit 8 respectively, the battery capacity of multiple battery battery cores 1 is transferred in order instrument display 5 by MCU4, jumped in order aobvious by instrument display 5, or, the battery capacity of multiple battery battery cores 1 being transferred to instrument display 5 simultaneously, Fen Kai do not shown by 5 of instrument displays.
In the utility model, current sense 2, the aobvious segmentation counting circuit 3 of electricity, driving and detection power device 6, two-way controlled power device 7, ID Communication Control circuit 8 can be integrated into the i.e. CPU of a CPU, the one CPU also has other some functions, and 100 deciles of battery battery core 1 and the kind category code of battery battery core 1 are formulated in a CPU management, for example LiFePO4 is 123, LiMn2O4 is 456, so that identification.
MCU4 i.e. the 2nd CPU and a CPU and instrument display 5 has communication protocol, in the time that the 2nd CPU sends detecting battery capacity and battery battery core a kind code signal to a CPU of battery battery core 1, the one CPU beams back the 2nd CPU the battery capacity of battery battery core 1 and battery battery core a kind code signal, in the 2nd CPU, write in advance above-mentioned corresponding detecting function and calculating function, after the 2nd CPU calculates, by the battery capacity of the battery battery core of gained 1 and can be transferred to instrument display 5 by stroke mileage number, instrument display 5 is with percentages show.
In the time that battery battery core 1 is in parallel by multiple battery battery cores 1, described multiple battery battery cores 1 can same capability and identical type, also can have different capabilities and variety classes; The detecting function and the calculating function that in the 2nd CPU, write in advance, when the 2nd CPU sends detecting battery capacity and battery battery core a kind code signal to a CPU of many Battery packs battery core 1, and the signal that a CPU of many Battery packs battery core 1 is beamed back calculates and adds up to, then the mileage by each battery battery core 1 capacity decile and after adding up to, be sent to instrument display 5 with data protocol, instrument display 5 is with percentages show.Capacity display mode after multiple battery battery core 1 parallel connections can be: the signal of the battery battery core 1 that the 2nd CPU obtained with the very first time, by successively arranging the orderly instrument display 5 that is transferred to, the capacity of each battery battery core 1 can be jumped by clock order aobvious, also can separately show individually by the quantity of battery battery core 1, after multiple battery battery core 1 parallel connections can stroke mileage gauge table display mode, mileage after parallel connection is done and added up to, and be transferred to instrument display 5.
The foregoing is only an embodiment of the present utility model, the not restriction to this case design, all equivalent variations of doing according to the design key of this case, all fall into the protection domain of this case.
Claims (4)
1. a Displaying Meter for the battery vehicles, is characterized in that: comprise the aobvious segmentation counting circuit of at least one Battery pack battery core, current sense, MCU, instrument display and electricity; The input end of current sense is connected with battery battery core, the electric current of Real-Time Monitoring battery battery core, and output terminal is connected with the input end of the aobvious segmentation counting circuit of electricity; The input end of the aobvious segmentation counting circuit of electricity is also connected with battery battery core, the electric current inflow and outflow time of the aobvious segmentation counting circuit monitoring of this electricity battery battery core, the capacity of battery battery core is divided into multiple deciles, the output termination MCU of the aobvious segmentation counting circuit of electricity simultaneously; The initial cells capacity of the pre-stored dissimilar battery battery core of MCU, mileage and mileage corresponding to each decile battery capacity that this initial cells capacity is corresponding; The outflow of bus current time conversion of aobvious to the electric current of current sense Real-Time Monitoring and electricity segmentation counting circuit monitoring is become consuming cells capacity by MCU, deducts consuming cells capacity be remaining battery capacity with initial cells capacity; MCU connects instrument display, and isodisperse corresponding remaining battery capacity is converted into residual running mileage by MCU, and is transferred to instrument display, is shown by instrument display.
2. the Displaying Meter of a kind of battery vehicles as claimed in claim 1, is characterized in that: also comprise velocity pick-up, this velocity pick-up is connected with MCU, and velocity pick-up detects the speed of the vehicles in real time, and signal is transferred to MCU; Remaining battery capacity and real-time speed are converted into real-time residual running mileage by MCU, and be transferred to instrument display, shown by instrument display.
3. the Displaying Meter of a kind of battery vehicles as claimed in claim 1, is characterized in that: also comprise driving and detection power device, two-way controlled power device; The input end of two-way controlled power device is connected with battery battery core, controls the charge and discharge of battery battery core, and output terminal is connected with the input end of driving and detection power device, and this driving and detection power device are for driving and detect two-way controlled power device; The aobvious segmentation counting circuit of output termination electricity of two-way controlled power device.
4. the Displaying Meter of a kind of battery vehicles as claimed in claim 1, it is characterized in that: described battery battery core is by the parallel connection of many Battery packs battery core, and each battery battery core is connected with MCU by ID Communication Control circuit respectively, the battery capacity of multiple battery battery cores is transferred in order instrument display by MCU, jump in order aobvious by instrument display, or, the battery capacity of multiple battery battery cores is transferred to instrument display simultaneously, separately shown individually by instrument display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867186.1U CN203688779U (en) | 2013-12-26 | 2013-12-26 | Display instrument of battery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867186.1U CN203688779U (en) | 2013-12-26 | 2013-12-26 | Display instrument of battery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688779U true CN203688779U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867186.1U Expired - Lifetime CN203688779U (en) | 2013-12-26 | 2013-12-26 | Display instrument of battery vehicle |
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| CN (1) | CN203688779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422263A (en) * | 2016-05-23 | 2017-12-01 | 天津新日机电有限公司 | A kind of instrument calculated power consumption and show battery dump energy |
-
2013
- 2013-12-26 CN CN201320867186.1U patent/CN203688779U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422263A (en) * | 2016-05-23 | 2017-12-01 | 天津新日机电有限公司 | A kind of instrument calculated power consumption and show battery dump energy |
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