CN2874504Y - Vehicle carried electric automobile coulometric detector - Google Patents
Vehicle carried electric automobile coulometric detector Download PDFInfo
- Publication number
- CN2874504Y CN2874504Y CN 200520098351 CN200520098351U CN2874504Y CN 2874504 Y CN2874504 Y CN 2874504Y CN 200520098351 CN200520098351 CN 200520098351 CN 200520098351 U CN200520098351 U CN 200520098351U CN 2874504 Y CN2874504 Y CN 2874504Y
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- signal
- electric automobile
- vehicle carried
- output terminal
- electric
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Abstract
The utility model is characterized in a vehicle-carried electric motor electricity volume tester comprising an electric signal sensor, an A virgule D conversion device, a data processing single chip and a display device. The signal sensor and the A virgule D conversion device are connected with each other through a signal adjustment device adjusting the output voltage value. The utility model has the advantages of small cubage, easy use, detection current and voltage signals from current and voltage sensors, so it can check the electricity volume of electric motors after internal treatment.
Description
Technical field
The utility model belongs to electric vehicle and measures the demarcation field, is specifically related to a kind of vehicle carried electric automobile coulometric detector.
Background technology
On the present electric automobile, as pure electric automobile, hybrid vehicle, though various instrument have been installed, always unable to do what one wishes to the measurement of several electric weight, error is big, and the electric weight of electric current, voltage and battery is very important Several Parameters for electric automobile.If adopt some traditional apparatus measures very inconvenient because when measuring automobile can move, frequent start-stop, vibration be big, and will have the professional and technical personnel to implement.
Summary of the invention
The vehicle carried electric automobile coulometric detector that provides a kind of convenience stable of being of the present utility model is to address the above problem.
The technical solution of the utility model is: vehicle carried electric automobile coulometric detector, it comprises electric signal sensor, A/D conversion equipment, data processing single-chip microcomputer, the signal regulating device that is connected conditioning output setting voltage value between the display device, electric signal sensor and A/D conversion equipment.
The utility model has the advantages that: volume is little, easy to use, directly from electric current, voltage sensor senses electric current, voltage signal, delivers in the detector, detects through promptly realizing the electric automobile electric weight after the inter-process.
Description of drawings
Fig. 1 total control circuit block diagram of the present utility model.
Fig. 2 flow chart of the present utility model.
The circuit diagram of Fig. 3 signal regulating device.
Embodiment
As shown in Figure 1, electric signal sensor is voltage sensor, current sensor; The output signal of voltage sensor, current sensor connects signal regulating device; Signal regulating device converts voltage and current signal the voltage signal of 0-5V to, and its output terminal connects the A/D conversion equipment, and the output of A/D conversion equipment connects the data processing single chip, and the data processing single-chip microcomputer adopts 9S12DP256 chip, display device.Button on the keyboard is used for changing the amount that will show.
Vehicle carried electric automobile coulometric detector is obtained the electric current of little slightly milliampere level through shielded cable electric automobile electric weight detector by voltage sensor, current sensor, become the voltage signal of 0-5V again through current/voltage conversion, convert digital signal to through A/D again, wait for the single-chip microcomputer sampling.Single-chip microcomputer regularly interrupts reading the value of electric current, voltage, calculates the value that obtains electric weight through electric weight, is simultaneously displayed on the liquid crystal display.Button on the keyboard is used for changing the amount that will show.Control program as shown in Figure 2.
As shown in Figure 3, signal regulating device comprises the signal condition chip that is connected with the electric signal sensor output terminal, the output terminal of signal condition chip connects filtering circuit, the output terminal concatenation operation amplifier of filtering circuit, the output terminal of operational amplifier connects isolates follower, and the output terminal of isolating follower connects the filtering output circuit.The signal condition chip is chip RCV420.The three rank filtering circuits that the filtering output circuit is made of the PART1 of resistance R 37, capacitor C 13, resistance R 38, capacitor C 35, resistance R 39, capacitor C 39 and arithmetical unit U17.
The current signal of little summary of electric current, voltage sensor senses is delivered to 1 pin of signal condition chip RCV420, through inter-process, the corresponding voltage signal of 14 pin output from RCV420, L6, L8, C6, C8 carry out filtering, and U9 is an operational amplifier, isolate through the one-level follower, potentiometer P3 is used for regulating zero point, P10 is used for regulating enlargement factor, and the PART1 of R37, C13, R38, C35, R39, C39, U17 realizes one three rank filtering, to eliminate high-frequency interferencing signal.
After detecting stable electric current, voltage signal, the defeated simulating signal that is sent to single-chip microcomputer is gone into end, through calculating electric weight, shows on liquid crystal display.
The principle of work of this instrument is: circuit is a sense channel, electric weight detects needs a current channel and a voltage detecting passage, behind the curtage process current/voltage sensor, obtain the current signal of little summary, send into electric current, voltage conditioning passage respectively, through current/voltage conversion, filtering, amplitude adjusted, again through one three rank filtering, just can obtain calculating the required electric current of electric weight, magnitude of voltage.When electric current, voltage are zero, regulate zero potentiometer and make OUT be output as zero, when input current, when voltage is full scale, regulate enlargement factor potentiometer (P10), make OUT be output as full scale (10V).When the electric current in a certain moment, when magnitude of voltage occurs, through after this part processing of circuit, convert digital signal to by the A/D change-over circuit of single-chip microcomputer inside, go out electric weight through specific algorithm computation, on liquid crystal display, promptly can see the electric weight of this moment.
Claims (4)
1, a kind of vehicle carried electric automobile coulometric detector, it comprises electric signal sensor, the A/D conversion equipment, the data processing single-chip microcomputer, display device is characterized in that being connected between electric signal sensor and the A/D conversion equipment signal regulating device with voltage and current signal conversion conditioning output setting voltage value.
2, vehicle carried electric automobile coulometric detector according to claim 1, it is characterized in that described signal regulating device comprises the signal condition chip that is connected with the electric signal sensor output terminal, the output terminal of signal condition chip connects filtering circuit, the output terminal concatenation operation amplifier of filtering circuit, the output terminal of operational amplifier connects isolates follower, and the output terminal of isolating follower connects the filtering output circuit.
3, as vehicle carried electric automobile coulometric detector as described in the claim 2, it is characterized in that described signal condition chip is chip RCV420.
4,, it is characterized in that the three rank filtering circuits that described filtering output circuit is made of the PART1 of resistance R 37, capacitor C 13, resistance R 38, capacitor C 35, resistance R 39, capacitor C 39 and arithmetical unit U17 as vehicle carried electric automobile coulometric detector as described in the claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098351 CN2874504Y (en) | 2005-10-13 | 2005-10-13 | Vehicle carried electric automobile coulometric detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098351 CN2874504Y (en) | 2005-10-13 | 2005-10-13 | Vehicle carried electric automobile coulometric detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874504Y true CN2874504Y (en) | 2007-02-28 |
Family
ID=37781102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520098351 Expired - Fee Related CN2874504Y (en) | 2005-10-13 | 2005-10-13 | Vehicle carried electric automobile coulometric detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874504Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096045B (en) * | 2009-12-10 | 2013-05-01 | 中兴通讯股份有限公司 | Method and system for measuring battery capacity of on-board units |
| CN104535833A (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Vehicle power detection method and vehicle power detection system |
-
2005
- 2005-10-13 CN CN 200520098351 patent/CN2874504Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096045B (en) * | 2009-12-10 | 2013-05-01 | 中兴通讯股份有限公司 | Method and system for measuring battery capacity of on-board units |
| CN104535833A (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Vehicle power detection method and vehicle power detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20131013 |