CN203186117U - Controller for electric vehicle - Google Patents
Controller for electric vehicle Download PDFInfo
- Publication number
- CN203186117U CN203186117U CN 201320114230 CN201320114230U CN203186117U CN 203186117 U CN203186117 U CN 203186117U CN 201320114230 CN201320114230 CN 201320114230 CN 201320114230 U CN201320114230 U CN 201320114230U CN 203186117 U CN203186117 U CN 203186117U
- Authority
- CN
- China
- Prior art keywords
- circuit
- interface
- resistance
- controller
- motor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a controller for an electric vehicle. The controller for the electric vehicle comprises a power source interface, a control circuit and a motor signal interface, and is characterized in that the control circuit comprises a main relay circuit, a rotating speed detecting circuit, a battery low-voltage protection circuit and a charging running limiting circuit, wherein the main relay circuit is used for receiving handle turning signals and motor speed signals and deciding whether the controller outputs signals, the rotating speed detecting circuit is used for detecting the rotating speed of the motor, and the charging running limiting circuit is used for detecting whether the electric vehicle is charged. The main relay circuit is connected between the power source interface and the motor signal interface. A power-on preparation interface and a braking input interface are connected between the power source interface and the main relay circuit. The rotating speed detecting circuit is connected between the main relay circuit and the motor signal interface. The charging running limiting circuit is connected with a charging input interface, and is connected between the power source interface and the rotating speed detecting circuit.
Description
Technical field
The present invention relates to a kind of controller for electric vehicle, especially have the controller for electric vehicle of under-voltage protection function.
Background technology
In China, hold the penetration and promotion of wushu battery-driven car, because it is simple to operate, deposit conveniently, general adult can grasp, and has become the main trip walking-replacing tool of some city dwellers.The exploitation of the various parts of electric vehicle such as battery etc. is greatly developed in recent ten years, has also promoted the development to the improvement of battery-driven car parts simultaneously.The general wushu battery-driven car operation of holding comprises operations such as starting, brake, parking, and average driver is easy to grasp to above-mentioned operation.But because battery-driven car generally uses storage battery to provide power as battery, when the electric weight of battery was to a certain degree following owing to use drops to, the operation battery of battery-driven car also can be reduced to certain limit, and battery-driven car can enter under-voltage running state.If keeping the long period, this under-voltage running state causes the essence damage can for the battery of electric vehicle power supply.Therefore the battery-driven car manufacturer has developed the various undervoltage protection systems that can notify the user when battery-driven car enters under-voltage operation or cut off the electricity supply to protect battery of electric vehicle automatically.Generally have and use two relays in the controller for electric vehicle of under-voltage protecting circuit; one of them is used for the control of drive motor power on/off; another then is used for the under-voltage protecting circuit power on/off; namely when voltage is lower than certain value; the under-voltage protecting circuit repeat circuit disconnects; under-voltage protecting circuit is not worked, thus whole circuit for controlling motor do not work, protect electric vehicle power sources effectively.Above-mentioned controller architecture safety is good, and circuit is simple, but defective is because relay price proportion in the entire circuit structural constituent is very high, causes the controller cost to increase.
The utility model content
The utility model is considered the problem of controller cost in conjunction with prior art, proposes a kind of controller for electric vehicle that has under-voltage protecting circuit, when realizing under-voltage protection function, reduces the controller manufacturing cost, has the better economic progressive.
A kind of controller for electric vehicle, comprise power interface, control circuit and motor signaling interface, it is characterized in that, described control circuit comprises that one is used for receiving handle signal and motor speed signal and determining the main relay circuit whether controller is exported, the preparation interface that powers on for the beamhouse operation input that powers on to relay, a brake input interface that is used for the brake operation input, a charging input interface that is used for to the electric vehicle power sources charging, speed detect circuit for detection of motor speed, a battery under-voltage protection circuit, one is detected the charging restricted driving circuit whether battery-driven car is charging;
Described main relay circuit is connected between described power interface and the motor signaling interface;
The described preparation interface that powers on links to each other with described brake input interface, is connected between described power interface and the described main relay circuit;
Described speed detect circuit is connected between described main relay circuit and the described motor signaling interface;
Described charging restricted driving circuit links to each other with described charging input interface, is connected between described power interface and the described speed detect circuit.
Described under-voltage protecting circuit is by the 1st resistance R 1; the 2nd resistance R 2; the 7th resistance R 7; the 9th resistance R 9; the 3rd aerotron Q3; voltage detection comparator U1; the 2nd capacitor C 2; the 3rd capacitor C 3 and schottky diode D5 and the 6th diode D6 form; voltage detection comparator U1 has input end; negative electrode and anode; described the 3rd aerotron Q3 emitter links to each other with the negative electrode of the 3rd diode D3; the 1st resistance R 1 is connected between the emitter and base stage of the 3rd aerotron Q3; the collecting electrode of the 3rd aerotron Q3 is connected with relay coil; the 9th resistance R 9 one terminations the 3rd aerotron Q3 base stage; another termination voltage detection comparator U1 anode, voltage detection comparator U1 negative ground.The 2nd resistance R 2 one ends are connected with positive source by diode D6, the anode of another termination the 7th resistance R 7 and schottky diode D5, the 7th resistance R 7 other ends connect voltage detection comparator U1 negative electrode and ground connection, and schottky diode D5 negative electrode connects voltage detection comparator U1 input end.The 2nd capacitor C 2 is connected between the voltage detection comparator U1 input utmost point and the anode, and the 3rd capacitor C 3 is connected between the voltage detection comparator U1 input utmost point and the negative electrode.
Described voltage detection comparator U1 is the voltage stabilizing chip.
The preferred permanent-magnet DC brush motor that is connected with controller motor signaling interface.
Further, be provided with the locking wire switch between described power interface and the described control circuit.
Further, described under-voltage protecting circuit by
The beneficial effects of the utility model are; in under-voltage protecting circuit, do not use relay to do the preparation that powers on by the 3rd aerotron Q3 as main relay circuit relay electric apparatus coil; judge cell pressure by voltage comparator U1; thereby the break-make of control aerotron Q3; and then control working on power of main electrical equipment; component structure is simple and cost is low holds concurrently, and more is applicable to production.
Description of drawings
Fig. 1 is the framed structure scheme drawing of controller for electric vehicle of the present invention.
Fig. 2 is controller for electric vehicle schematic circuit diagram of the present invention.
The specific embodiment
For further understanding content of the present utility model, now by reference to the accompanying drawings the utility model controller for electric vehicle is elaborated.
As shown in Figure 1, the utility model controller for electric vehicle comprises power interface, and control circuit and motor signaling interface, described control circuit comprise the preparation interface that powers on, and is used for the user and carries out the battery-driven car preparation that powers on by corresponding operating; A brake input interface is used for user's input operation of braking; One is used for receiving handle signal and motor speed signal and determining the main relay circuit whether controller is exported, the speed detect circuit for detection of motor speed, a charging restricted driving circuit that whether is in charge condition for detection of battery-driven car; Whether power line voltage reaches the under-voltage protecting circuit of discharge lower limit.
Described main relay circuit is connected between described power interface and the motor signaling interface; The described preparation interface that powers on links to each other with described brake input interface, is connected between described power interface and the described main relay circuit; Described speed detect circuit is connected between described main relay circuit and the described motor signaling interface; Described charging restricted driving circuit links to each other with described charging input interface, is connected between described power interface and the described speed detect circuit.The utility model controller for electric vehicle preferentially uses permanent-magnet DC brush motor.
For increasing the safety in utilization of the controller that the utility model provides, between the described power interface of control and described relay, the locking wire switch can be set, namely when battery-driven car does not use for a long time, this switch can be disconnected, thereby battery and motor are thoroughly disconnected.
Power supply described in the utility model and battery all represent to provide for battery-driven car the device of power resources.
The circuit that relates to below in conjunction with the utility model controller of Fig. 2 with and using method and principle further describe.
For saving the design space, the locking wire switch can be arranged to comprise the first lead-in wire interface J1 and the second lead-in wire interface J2, is used for outside connected switch, also can be arranged to have the switch circuit of same switching function.The locking wire switch is connected between power interface and the relay, and cut-off switch when vehicle does not use for a long time can make battery-driven car be in safer state.During use, the locking wire switch closure, battery-driven car enters mode of operation.
The described preparation interface P3 that powers on links to each other with brake input interface P2, and the input interface P2 that preferably brakes is in normally off, and the preparation interface P3 that powers on is in normally open.The other end of brake input interface links to each other with battery, and handle input interface P2 links to each other with the controller relay switch with after the 3rd diode D3 links to each other.When the operator is intended to power on to battery-driven car, do corresponding operating, as rotating or stirring handle, make handle input interface P3 closure, do the preparation that powers on to relay; On the contrary, when the operator is intended to brake, by corresponding operating the brake input interface is disconnected, the entire controller outage.
Described main relay circuit is made up of relay, the 1st capacitor C 1, the 4th diode D4, the termination motor interface of relay contact switch K2, and the other end connects positive source by the locking wire switch; The 1st capacitor C 1 is parallel to the contact switch two ends, plays the effect of protective relay.The 4th diode D4 is parallel to the relay coil two ends.The collecting electrode of the 3rd aerotron Q3 of relay coil one termination under-voltage protecting circuit, the collecting electrode of the 1st aerotron Q1 in the other end speed detect circuit.
Described under-voltage protecting circuit is by the 1st resistance R 1; the 2nd resistance R 2; the 7th resistance R 7; the 9th resistance R 9; the 3rd aerotron Q3; voltage detection comparator U1; the 2nd capacitor C 2; the 3rd capacitor C 3 and schottky diode D5 and the 6th diode D6 form; voltage detection comparator U1 has input end; negative electrode and anode; described the 3rd aerotron Q3 emitter links to each other with the negative electrode of the 3rd diode D3; the 1st resistance R 1 is connected between the emitter and base stage of the 3rd aerotron Q3; the collecting electrode of the 3rd aerotron Q3 is connected with relay coil; the 9th resistance R 9 one terminations the 3rd aerotron Q3 base stage; another termination voltage detection comparator U1 anode, voltage detection comparator U1 negative ground.The 2nd resistance R 2 one ends are connected with positive source by diode D6, the anode of another termination the 7th resistance R 7 and schottky diode D5, the 7th resistance R 7 other ends connect voltage detection comparator U1 negative electrode and ground connection, and schottky diode D5 negative electrode connects voltage detection comparator U1 input end.The 2nd capacitor C 2 is connected between the voltage detection comparator U1 input utmost point and the anode, and the 3rd capacitor C 3 is connected between the voltage detection comparator U1 input utmost point and the negative electrode.
When detecting power line voltage, the voltage detection comparator U1 of under-voltage protecting circuit is in the reference potential of setting when above; the 3rd aerotron Q3 carries out conducting and prepares; prepare the interface closure if power on this moment; and speed detect circuit line relay coil power on signal; then the 3rd aerotron Q3 conducting; the relay coil conducting, relay contact switch K2 closure, control works on power.
Speed detect circuit is made up of the 1st aerotron Q1, the 3rd resistance R 3, the 4th resistance R 4 and the 6th resistance R 6, wherein the collecting electrode of the 1st aerotron Q1 connects the anode of described relay coil and the 4th diode D4, grounded emitter, base stage connects the 4th resistance R 4 and the 6th resistance R 6, resistance R 6 other end ground connection, resistance R 4 other ends are by being connected with relay contact switch K2 and motor signaling interface.Speed detect circuit detects motor speed signal, and after rotating speed was greater than the setting rotating speed, trigger action relay made motor and power connection, by battery driven motor.
The 3rd resistance R 3 one ends are connected between the 2nd resistance R 2 and the 7th resistance R 7, and the other end is connected between the 4th resistance R 4 and the relay switch K2.
Described charging restricted driving circuit is made up of the 5th resistance R 5, the 8th resistance R 8 and the 2nd aerotron Q2, the 5th resistance R 5 one termination charging inlet P1 wherein, another termination the 2nd aerotron Q2 base stage and the 8th resistance R 8, resistance R 8 other end ground connection; The 2nd aerotron Q2 collecting electrode switches through base stage, the 4th resistance R 4 and the 6th resistance R 6 of the 1st aerotron Q1 in the fast testing circuit, aerotron Q6 grounded emitter.Described charging restricted driving circuit function is that aerotron Q2 ends when making battery-driven car be in charge condition, prevents that the user is dangerous because charged maloperation produces.
The mode of operation of the utility model controller for electric vehicle is as follows:
Behind the locking wire switch closure, under-voltage protecting circuit is connected, and judges power line voltage by voltage comparator U1, if power line voltage is higher than setting voltage, aerotron Q3 carries out conducting and prepares; Otherwise aerotron Q3 ends, and whether the preparation interface that no matter powers on is closed, and perhaps whether speed detect circuit sends power on signal, not conductings of aerotron Q3, and relay coil does not power on, and circuit is not worked.
After aerotron Q3 carries out the conducting preparation, the passive driving of motor, produce forward circuit through speed detect circuit, when rotating speed reaches setting value, power on simultaneously and prepare interface closure, aerotron Q3 conducting, the relay coil trigger switch that powers on, the controller normal operation provides power resources by battery for motor, motor active drive battery-driven car.
When operating the brake input interface, the user disconnects, the entire controller outage, and controller quits work.
When battery-driven car was in charge condition, charging restricted driving circuit was controlled not conducting, and controller can't be worked, and prevented that the user is dangerous because charged maloperation produces.
Claims (4)
1. controller for electric vehicle, comprise power interface, control circuit and motor signaling interface, it is characterized in that, described control circuit comprises that one is used for receiving handle signal and motor speed signal and determining the main relay circuit whether controller is exported, the preparation interface that powers on for the beamhouse operation input that powers on to relay, a brake input interface that is used for the brake operation input, a charging input interface that is used for to the electric vehicle power sources charging, speed detect circuit for detection of motor speed, a battery under-voltage protection circuit, one is detected the charging restricted driving circuit whether battery-driven car is charging;
Described main relay circuit is connected between described power interface and the motor signaling interface;
The described preparation interface that powers on links to each other with described brake input interface, is connected between described power interface and the described main relay circuit;
Described speed detect circuit is connected between described main relay circuit and the described motor signaling interface;
Described charging restricted driving circuit links to each other with described charging input interface, is connected between described power interface and the described speed detect circuit;
Described under-voltage protecting circuit is by the 1st resistance R 1, the 2nd resistance R 2, the 7th resistance R 7, the 9th resistance R 9, the 3rd aerotron Q3, voltage detection comparator U1, the 2nd capacitor C 2, the 3rd capacitor C 3 and schottky diode D5 and the 6th diode D6 form, voltage detection comparator U1 has input end, negative electrode and anode, described the 3rd aerotron Q3 emitter links to each other with the negative electrode of the 3rd diode D3, the 1st resistance R 1 is connected between the emitter and base stage of the 3rd aerotron Q3, the collecting electrode of the 3rd aerotron Q3 is connected with relay coil, the 9th resistance R 9 one terminations the 3rd aerotron Q3 base stage, another termination voltage detection comparator U1 anode, voltage detection comparator U1 negative ground; The 2nd resistance R 2 one ends are connected with positive source by diode D6, the anode of another termination the 7th resistance R 7 and schottky diode D5, the 7th resistance R 7 other ends connect voltage detection comparator U1 negative electrode and ground connection, and schottky diode D5 negative electrode connects voltage detection comparator U1 input end; The 2nd capacitor C 2 is connected between the voltage detection comparator U1 input utmost point and the anode, and the 3rd capacitor C 3 is connected between the voltage detection comparator U1 input utmost point and the negative electrode.
2. controller for electric vehicle according to claim 1 is characterized in that, described voltage detection comparator U1 is the voltage stabilizing chip.
3. controller for electric vehicle according to claim 1 is characterized in that, it is permanent-magnet DC brush motor that described motor signaling interface inserts motor.
4. according to claim 1 or 2 or 3 described controller for electric vehicle, it is characterized in that, be provided with the locking wire switch between described power interface and the described control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114230 CN203186117U (en) | 2013-03-13 | 2013-03-13 | Controller for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114230 CN203186117U (en) | 2013-03-13 | 2013-03-13 | Controller for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203186117U true CN203186117U (en) | 2013-09-11 |
Family
ID=49103001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114230 Expired - Fee Related CN203186117U (en) | 2013-03-13 | 2013-03-13 | Controller for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203186117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104123760A (en) * | 2014-06-26 | 2014-10-29 | 天津市松正电动汽车技术股份有限公司 | Electric vehicle signal acquisition circuit |
| CN117227483A (en) * | 2023-11-15 | 2023-12-15 | 珠海格力电器股份有限公司 | Control method and device for pure electric vehicle, pure electric vehicle and storage medium |
-
2013
- 2013-03-13 CN CN 201320114230 patent/CN203186117U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104123760A (en) * | 2014-06-26 | 2014-10-29 | 天津市松正电动汽车技术股份有限公司 | Electric vehicle signal acquisition circuit |
| CN117227483A (en) * | 2023-11-15 | 2023-12-15 | 珠海格力电器股份有限公司 | Control method and device for pure electric vehicle, pure electric vehicle and storage medium |
| CN117227483B (en) * | 2023-11-15 | 2024-02-09 | 珠海格力电器股份有限公司 | Control method and device for pure electric vehicle, pure electric vehicle and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102231553B (en) | The battery management system that charged controls | |
| CN203014409U (en) | Automatic charging system for electric automobile storage battery | |
| CN103135062A (en) | Charge-discharge monitoring method of high-efficiency power battery | |
| CN102162833B (en) | Method and circuit for detecting working condition of relay in high voltage loop of electric automobile | |
| CN102501771B (en) | Control method for high voltage electricity safety protection of passenger vehicle | |
| CN201868860U (en) | Overdischarge protective circuit of handheld dust collector | |
| CN203186117U (en) | Controller for electric vehicle | |
| CN102608371B (en) | Storage battery detecting device and undervoltage protection method thereof | |
| CN204441870U (en) | Automobile storage battery detects protection system | |
| CN103522916A (en) | Double power sources switching control system of electric car | |
| CN203398769U (en) | Battery reverse-connection resistant protective circuit of direct current charging pile controller | |
| CN202518115U (en) | Low-voltage power supply for electric vehicle | |
| CN102769153B (en) | A kind of method for charging battery pack and implement device thereof | |
| CN202782643U (en) | Connection circuit of power battery and motor in hybrid electric vehicle | |
| CN104578260A (en) | Control device for electric vehicle | |
| CN204166063U (en) | A kind of lithium battery group fender pick-up unit | |
| CN204012667U (en) | A kind of motor driver protection circuit | |
| CN201130844Y (en) | Automatic reclosing control apparatus for low-voltage breaker | |
| CN203528320U (en) | Double-power-supply switching control system of electric vehicle | |
| CN106571619B (en) | A kind of storage battery under-voltage protection control circuit and its control method | |
| CN205489578U (en) | Prevent anti - discharge circuit of irritating of battery voltage | |
| CN203331853U (en) | Buffer switch circuit of electromobile | |
| CN209419244U (en) | A kind of centralization can fast charge battery truck charging system | |
| CN204290287U (en) | A kind of Micro Energy Lose protective circuit of contest robot master controller | |
| CN205070394U (en) | Electric automobile feed protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180313 |