CN201498568U

CN201498568U - Intelligent storage battery capable of displaying consumed electricity quantity

Info

Publication number: CN201498568U
Application number: CN2009201768234U
Authority: CN
Inventors: 杨帆; 杨景常; 徐学彬
Original assignee: Xihua University
Current assignee: Xihua University
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-06-02
Anticipated expiration: 2019-09-17

Abstract

The intelligent storage battery that can display the consumed power standardizes the power interface of the power storage battery for pure electric vehicles, which is consistent with the power supply interface of pure electric vehicles, and uses smart devices to accurately measure and display the power consumption of the storage battery. It makes it easier for pure electric vehicles to replenish energy and replace batteries, so that the used electricity of batteries can be seen at a glance, and no disputes about quantity and price will be caused during the transaction process. The intelligent device is composed of current sampling, A/D conversion, single-chip circuit, LCD display and CAN bus module, which solves the problem of power measurement in the new transaction mode of "changing" instead of "charging" in the process of supplementing power for the power battery of pure electric vehicles. Problems, making the full marketization and industrialization of pure electric vehicles possible. The single-chip microcomputer collects the current data for a fixed number of times per second, obtains the average value of the current used per second, and then accumulates it in the form of an integral to obtain the accumulative ampere-hours used by the battery, record it, and drive the LCD to display it. When the power is insufficient, the single-chip microcomputer notifies the driver through the CAN bus control alarm device.

Description

Can show the intelligent accumulator of power consumption

Technical field

The utility model relates to a kind of storage battery, in particular for pure electric-powered automobile provide power to making the intelligent accumulator of power consumption that shows that power consumption can accurately measure, show and be easy to change.

Background technology

Along with the exhaustion day by day of fossil energy, and a large amount of uses of fossil energy are serious day by day to the pollution of environment for human survival, and research can promote regenerative resource and clean energy resource has become the great strategic issue that improves environment for human survival and sustainable development.Automobile is the key areas of energy resource consumption, and development and popularization electric automobile are significant to realizing energy variation and sustainable development.

China takes much count of cleaning always, the exploitation of efficient automobile technology.Electric automobile is mainly containing fuel cell car, hybrid vehicle, 3 kinds of technology of pure electric automobile after being put into country's 863 great special projects aspect the car load exploitation.With respect to hybrid vehicle and fuel cell car, pure electric automobile has the advantage of self.Pure electric automobile replaces oil-burning machine with motor, and noise is low, pollution-free, and space that motor, oil plant and drive system account for less and weight can be in order to the demands of balancing battery; And because of using single electric energy, electric-control system is compared hybrid electric vehicle and is greatly simplified, and has reduced cost, but the also part price of balancing battery.And the battery of pure electric vehicle can utilize the cheapness " paddy " of electrical network to charge at night, and the peak-paddy that can stabilize electrical network is poor.For the car owner, utilize the cheapness " paddy " of count by time sharing, reduce operating cost.In a word, to the country, to electrical network, to environment, to the user, all be interests the more.

Now, along with the increasing of China to the pure electric automobile R﹠D intensity, China's pure electric automobile is very ripe technically.First pure electric automobile F3e of BYD development exposes in Beijing International Auto Show in 2006.It is introduced that the F3e F-Zero reaches 150 kilometers, the 0-100km/h accelerating time needed only 13.5 seconds, hundred kilometers power consumptions 12 degree, and once charging back distance travelled reaches 350 kilometers.Although China's pure electric automobile technology is very ripe, pure electric automobile industrialization, popularization widely also some concrete problem need to solve:

1, the charging difficulty is the greatest problem that the pure electric automobile industrialization faces.Can be full of 70% electricity in 10 minutes at electric automobile charging station, but the quick charge meeting reduces the useful life of battery, the consumer will check for the battery that has reduced useful life, can not accepted by consumers in general.And use the common power charging in family or parking lot, approximately wanted just can all be full of in 20 hours for 220 volts.

For solving the difficult problem of charging, pure electric automobile can be purchased the pattern that the process simulation of changing battery is built up the fair deal of finished product oil, promptly the motor vehicle energy is supplied with the electric automobile electrical changing station network system of trading system." fill " with " changing " replacement, give the third party charging work professional and that waste time and energy and bear.Just electric energy is not directly downloaded from electrical network and is sold to the pure electric automobile user, but through the aspect of power battery pack charging is sold.

2, the pattern that needs a kind of fair deal for this novel marketing method, need storage battery will measure and show use, the loss situation of energy clearly as the carrier of electric energy, thereby the electric automobile user is by paying power consumption, and charging station is by making the power consumption charge.

Summary of the invention

In view of the foregoing, the purpose of this utility model provides a kind of new-type pure electric automobile that meets and changes fast, the storage battery that makes power consumption accurately measure and to show.

The utility model achieves the above object by following structure: the utility model is a kind of intelligent accumulator of power consumption that shows, it is characterized in that embedding on the storage battery intensity amount, calculate, store and be shown in the intelligent apparatus of one, this intelligent apparatus is by current sampling circuit, the A/D change-over circuit, single chip circuit, LCD display and CAN bus module constitute, the output signal of current sampling circuit is delivered to the A/D change-over circuit, A/D change-over circuit signal output part is connected with singlechip chip, the single chip circuit signal output part is connected with the CAN bus module with LCD display respectively, the CAN bus module has the low electric weight indicator light of low electric weight alarm signal output ends and bridge panel board to be connected, and the CAN bus module is connected with showing the zero clearing operating key.

The operation principle that embeds the intelligent apparatus on the storage battery in the utility model is: singlechip chip is gathered current data by the Acquisition Circuit fixed number of times each second ground that makes power consumption, and it is averaged, obtain the average use electric current of each second, again the average current value of each second in the use form with integration is added up, obtain the ampere-hour number that storage battery accumulative total is used.Singlechip chip uses the ampere-hour number scale to record this accumulative total, and the driving LCD displays it.When electric weight was not enough, single-chip microcomputer was by the total line traffic control warning device of CAN driver.

Can be after charging station charges to used storage battery by the CAN bus with the zero clearing of power consumption that shows on the storage battery.

After the utility model is taked above technical measures, pure electric automobile with the power interface standardization of power accumulator, is consistent with the power interface of all pure electric automobile, and by smart circuit the power consumption of storage battery can be accurately measured and show.This measure not only makes the pure electric automobile makeup energy, it is more quick to change storage battery, and the power consumption of storage battery is come into plain view, and can not cause the dispute of any amount valency in the process of exchange.

The beneficial effects of the utility model are: solved pure electric automobile and replenished the problem that electric weight is measured in the novel trade mode of " filling " with " changing " replacement in the electric weight process with power accumulator, made the comprehensive market-oriented industrialization of pure electric automobile become possibility.

Description of drawings

Fig. 1 is a circuit block diagram of the present utility model.

Fig. 2 is the instant sample circuit figure of use electric current of the present utility model.

Fig. 3 is use electric quantity acquisition of the present utility model, calculating, treatment circuit figure.

Embodiment

Embodiment 1

In Fig. 1, Fig. 2, be provided with in the current sampling circuit and import the A/D conversion equipment after a very little sampling resistor R1 of resistance converts current signal to voltage signal, the A/D conversion equipment is read in by single chip circuit after analog signal conversion is become digital signal, single chip circuit calculates the signal that collects, add up, and what will add up makes power consumption deliver to LCD display to show in real time again.Judge the power accumulator electric weight when low when single chip circuit, will hang down the electric weight alarm signal by the CAN bus module and be sent to the low electric weight indicator light that is provided with on the bridge panel board, driver.When storage battery after charging station charging is finished, the staff by CAN bus module input zero clearing display password to single chip circuit, after single chip circuit judges that password correctly, with the show value zero clearing of LCD display.In Fig. 2, sampling resistor R1 and storage battery and motor in series, in the electric automobile driving states, the instant current signal that storage battery uses converts voltage signal to, and is handled by signals collecting, calculating, treatment circuit that interface CON2 delivers to signal among Fig. 3.

In Fig. 3, A/D converter circuit U 2 adopts chip TLC594, and the instant current signal that the interface CON2 by its left side collects current sampling circuit is delivered to the U2 chip and carried out analog-to-digital conversion, and the data that conversion is good are delivered to single chip circuit and calculated, add up.Single chip circuit is made up of the clock, the reset circuit that are made of devices such as crystal oscillator, electric capacity, resistance of U1 chip STC89C52 and lower left thereof.The data that single chip circuit adds up calculating are delivered to the LCD display circuit and are shown.The LCD display circuit is made of interface CON14 and LCD LCD circuit.Single-chip microcomputer is sent to the LCD LCD circuit by interface CON14 with control signal and data to be displayed, and the ampere-hour digital display that storage battery is used illustrates.If single chip circuit detects accumulator electric-quantity when low, alarm signal electric weight is low by the CAN bus interface circuit is sent to bridge, reminds the driver should change battery.CAN bus interface circuit U3 is made of chip AU5790 and peripheral circuit thereof CAN bus control chip SJA1000 and single line CAN bus controller U4.Single-chip microcomputer is realized control to the CAN bus by chip U3, and finishes transmitting-receiving to the CAN bus data by chip U4.

Claims

1. one kind can show the intelligent accumulator of power consumption, it is characterized in that embedding on the storage battery intensity amount, calculate, store and be shown in the intelligent apparatus of one, this intelligent apparatus is by current sampling circuit, the A/D change-over circuit, single chip circuit, LCD display and CAN bus module constitute, the output signal of current sampling circuit is delivered to the A/D change-over circuit, A/D change-over circuit signal output part is connected with singlechip chip, the single chip circuit signal output part is connected with the CAN bus module with LCD display respectively, the CAN bus module has the low electric weight indicator light of low electric weight alarm signal output ends and bridge panel board to be connected, and the CAN bus module is connected with showing the zero clearing operating key.