CN204452101U - Electric vehicle third gear controller - Google Patents
Electric vehicle third gear controller Download PDFInfo
- Publication number
- CN204452101U CN204452101U CN201520044896.3U CN201520044896U CN204452101U CN 204452101 U CN204452101 U CN 204452101U CN 201520044896 U CN201520044896 U CN 201520044896U CN 204452101 U CN204452101 U CN 204452101U
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- Prior art keywords
- relay
- aerotron
- micro controller
- modulate circuit
- semiconductor
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Abstract
The utility model provides a kind of electric vehicle third gear controller, comprise micro controller system and relay signal switching modulate circuit, relay signal switches modulate circuit and comprises two driving circuits, two driving circuits are controlled by micro controller system two I/O port driver respectively, and then control relay A, the coil conducting of B or shutoff, the three-phase output end mouth of Micro Controller Unit (MCU) driving motor-drive circuit is respectively by the low gear of transfer relay A and relay B and motor, mid ranger or high speed gear winding switching, motor Hall element is connected with micro controller system by hall signal modulate circuit, described relay signal switches the control end of the mouth connection transfer relay A and relay B of modulate circuit.Control because the utility model adopts two-way relay signal to switch modulate circuit the object that two relays reach control third gear motor, the speed discrepancy therefore between controller three gears is less, and conversion effect is more steady, comfortable; Possesses folk art term fault tolerance simultaneously.
Description
Technical field
The utility model belongs to vehicle technology field, relates to a kind of for electric vehicle third gear controller.
Background technology
Along with the development of vehicle technology, battery-driven car is progressively developed to many gears by single grade of traditional system, existing controller for electric vehicle can only accomplish two grades of switchings usually, but two grades of speeds discrepancy switched between high, low speed are larger, change steady not, comfortable, thus how to design a kind of change steady, comfortable controller for electric vehicle become those skilled in the art research problem.
Utility model content
Problem to be solved in the utility model is to provide a kind ofly changes steadily comfortable electric vehicle third gear controller.
For solving the problem, the technical solution adopted in the utility model: a kind of electric vehicle third gear controller, comprise micro controller system and relay signal switching modulate circuit, described relay signal switches modulate circuit and comprises the first driving circuit and the second driving circuit, described first driving circuit is by the coil conducting of an I/O port JDQ_L drived control relay A of micro controller system or shutoff, described second driving circuit is by the coil conducting of the 2nd I/O port JDQ_H drived control relay B of micro controller system or shutoff, described first driving circuit comprises aerotron QSS2 and metal-oxide-semiconductor QSS1, the base stage of described aerotron QSS2 is connected with micro controller system the one I/O port JDQ_L by resistance RSS1, the base stage of described aerotron QSS2 is by pull down resistor RSS2 ground connection, the grounded emitter of aerotron QSS2, the collecting electrode of described aerotron QSS2 connects 12v power supply by a resistance RSS7, connect the grid of metal-oxide-semiconductor QSS1 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS1 connects the positive pole of sustained diode SS1, the source ground of described metal-oxide-semiconductor QSS1, the negative pole of described sustained diode SS1 connects car load power supply, the coils from parallel connection of coils of described relay A is at the two ends of described sustained diode SS1, described second driving circuit comprises aerotron QSS4 and metal-oxide-semiconductor QSS3, the base stage of described aerotron QSS4 is connected with micro controller system the 2nd I/O port JDQ_H by resistance RSS3, the base stage of described aerotron QSS4 is by pull down resistor RSS4 ground connection, the grounded emitter of aerotron QSS4, the collecting electrode of described aerotron QSS4 connects 12v power supply by a resistance RSS8, connect the grid of metal-oxide-semiconductor QSS3 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS3 connects the positive pole of sustained diode SS2, the source ground of described metal-oxide-semiconductor QSS3, the negative pole of described sustained diode SS2 connects car load power supply, the coils from parallel connection of coils of described relay B is at the two ends of described sustained diode SS2, the three-phase output end mouth of described Micro Controller Unit (MCU) driving motor-drive circuit is respectively by the low gear of transfer relay A and relay B and motor, mid ranger or high speed gear winding switching, motor Hall element is connected with micro controller system by hall signal modulate circuit, described relay signal switches the control end of the mouth connection transfer relay A and relay B of modulate circuit.
Described first driving circuit is provided with fault-tolerant enable signal modulate circuit, described fault-tolerant enable signal modulate circuit comprises aerotron QSS5, resistance RSS6 and resistance RSS5, the collecting electrode of the collecting electrode connecting triode QSS5 of described aerotron QSS2, the emitter of the emitter connecting triode QSS5 of described aerotron QSS2, the base stage of described aerotron QSS5 is by pull down resistor RSS6 ground connection, and the base stage of described aerotron QSS5 is connected with micro controller system by resistance RSS5 introduces enable signal JDQ_L_EN.
The advantage that the utility model has and good effect are: control because the utility model adopts two-way relay signal to switch modulate circuit the object that two relays reach control third gear motor, therefore the conversion efficiency between controller three gears improves, the speed discrepancy of motor diminishes, and conversion effect is more steady, comfortable.The fault-tolerant enable signal modulate circuit that first driving circuit connects, the middling speed winding drive circuit being automatically switched to controller when controller low speed winding drive circuit goes wrong by fault-tolerant enable signal modulate circuit can be ensured, controller three phase line is given tacit consent to and motor middling speed winding switching, drive motor works on mid ranger, run on height folk art term fault-tolerant mode, while possessing third gear controller function, remain the performance of folk art term controller like this, very possess fault tolerance again while high-adaptability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model relay signal switches modulate circuit;
Fig. 2 is the schematic circuit diagram that the utility model relay signal switches modulate circuit cooperation relay;
Fig. 3 is the utility model 12v power circuit principle figure;
Fig. 4 is that the utility model 12v turns 5v schematic circuit diagram;
Fig. 5 is that the utility model 5v turns 3.3v schematic circuit diagram;
Fig. 6 is the utility model SCM peripheral schematic circuit diagram;
Fig. 7 is the utility model instrument signal modulate circuit schematic diagram;
Fig. 8 is the utility model handle signal conditioning circuit;
Fig. 9 is the utility model temperature protection circuit schematic diagram;
Figure 10 is the utility model hall signal modulate circuit schematic diagram;
Figure 11 is the utility model current detection circuit schematic diagram;
Figure 12 is that the utility model overcurrent interrupts protective circuit schematic diagram;
Figure 13 is the utility model motor three-phase drive circuit schematic diagram;
Figure 14 is the schematic diagram that the utility model relay signal switches modulate circuit cooperation relay;
Figure 15 is control flow chart of the present utility model;
Figure 16 is faults-tolerant control diagram of circuit of the present utility model;
Figure 17 is that the utility model smart electronics shelves controller arranges rotating speed, current double-hysteresis-loop control schematic diagram.
Detailed description of the invention
Now with reference to the accompanying drawings comparatively detailed description is carried out to the utility model, as represented in figures 1 through 14, a kind of electric vehicle third gear controller, comprises micro controller system, relay signal switching modulate circuit, power circuit, instrument signal modulate circuit, handle signal conditioning circuit, instrument signal modulate circuit, temperature protection circuit, hall signal modulate circuit, current detection circuit, overcurrent interruption protective circuit, motor three-phase drive circuit etc.;
As Fig. 1, 2, shown in 14, relay signal switches modulate circuit and comprises the first driving circuit and the second driving circuit, described first driving circuit is by the coil conducting of an I/O port JDQ_L drived control relay A of micro controller system or shutoff, described second driving circuit is by the coil conducting of the 2nd I/O port JDQ_H drived control relay B of micro controller system or shutoff, described first driving circuit comprises aerotron QSS2 and metal-oxide-semiconductor QSS1, the base stage of described aerotron QSS2 is connected with micro controller system the one I/O port JDQ_L by resistance RSS1, the base stage of described aerotron QSS2 is by pull down resistor RSS2 ground connection, the grounded emitter of aerotron QSS2, the collecting electrode of described aerotron QSS2 connects 12v power supply by a resistance RSS7, connect the grid of metal-oxide-semiconductor QSS1 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS1 connects the positive pole of sustained diode SS1, the source ground of described metal-oxide-semiconductor QSS1, the negative pole of described sustained diode SS1 connects car load power supply, the coils from parallel connection of coils of described relay A is at the two ends of described sustained diode SS1, described second driving circuit comprises aerotron QSS4 and metal-oxide-semiconductor QSS3, the base stage of described aerotron QSS4 is connected with micro controller system the 2nd I/O port JDQ_H by resistance RSS3, the base stage of described aerotron QSS4 is by pull down resistor RSS4 ground connection, the grounded emitter of aerotron QSS4, the collecting electrode of described aerotron QSS4 connects 12v power supply by a resistance RSS8, connect the grid of metal-oxide-semiconductor QSS3 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS3 connects the positive pole of sustained diode SS2, the source ground of described metal-oxide-semiconductor QSS3, the negative pole of described sustained diode SS2 connects car load power supply, and (rated voltage of car load power supply is 48v, 60v etc.), the coils from parallel connection of coils of described relay B is at the two ends of described sustained diode SS2, the three-phase output end mouth of described Micro Controller Unit (MCU) driving motor-drive circuit is respectively by the low gear of transfer relay A and relay B and motor, mid ranger or high speed gear winding switching, motor Hall element is connected with micro controller system by hall signal modulate circuit, described relay signal switches the control end of the mouth connection transfer relay A and relay B of modulate circuit.
Described first driving circuit is provided with fault-tolerant enable signal modulate circuit, described fault-tolerant enable signal modulate circuit comprises aerotron QSS5, resistance RSS6 and resistance RSS5, the collecting electrode of the collecting electrode connecting triode QSS5 of described aerotron QSS2, the emitter of the emitter connecting triode QSS5 of described aerotron QSS2, the base stage of described aerotron QSS5 is by pull down resistor RSS6 ground connection, and the base stage of described aerotron QSS5 is connected with micro controller system by resistance RSS5 introduces enable signal JDQ_L_EN.
Principle of work:
1, relay signal switches modulate circuit principle: resistance RSS1, RSS3 is current-limiting resistance, pass through RSS1, RSS3 limits micro controller system IO port driver aerotron QSS2, the drive current of QSS4, resistance RSS2, RSS4 is pull down resistor, when micro controller system electrification reset port is in high-impedance state, pass through RSS2, RSS4 is by QSS2, QSS4 base stage drags down and makes QSS2, QSS4 turns off, QSS1, the conducting of QSS3 control relay is closed, work as QSS1, the grid of QSS3 is 12V, i.e. aerotron QSS, 2, when QSS4 closes, QSS1, QSS3 conducting, relay A, the adhesive of B coil, work as QSS1, the grid of QSS3 is 0V, i.e. aerotron QSS, 2, during QSS4 conducting, relay A, B releasing winding.Because relay is perceptual device; larger reverse voltage can be produced when the moment turned off; diode DSS1, DSS2 play afterflow effect instantaneously at cut-off, reduce or eliminate the reverse voltage that relay inductance produces, and play the effect of protection driving circuit and relay.
2, three fast switching principles: when vehicle is energized and remains static, controller low speed winding control module works: the adhesive of relay A coil, relay B releasing winding, the now open contact of relay A coil and controller three-phase A, B, C conducting, motor low speed winding works, and drives vehicle with low gear; Motor speed constantly rises, when controller detects that motor speed is greater than 10KM and electric current is less than 18A, controller middling speed winding control module works: relay A releasing winding, relay B releasing winding, the now normally closed contact of relay B and controller three-phase A, B, C conducting, motor middling speed winding works, and drives vehicle with mid ranger; Motor speed still constantly rises, when controller detects that motor speed is greater than 18KM and electric current is less than 15A, relay A releasing winding, the adhesive of relay B coil, controller high speed winding control module works: the now open contact of relay B and controller three-phase A, B, C conducting, motor high speed winding works, and drives vehicle with high speed gear;
Otherwise, when vehicle runs with high speed gear, when controller detects motor speed lower than 16KM, controller middling speed winding control module works: relay A releasing winding, relay B releasing winding, the now normally closed contact of relay B and controller three-phase A, B, C conducting, motor middling speed winding works, and drives vehicle with mid ranger; When controller detects motor speed lower than 8KM, controller low speed winding module work: relay A coil adhesive, relay B releasing winding, the now open contact of relay A coil and controller three-phase A, B, C conducting, motor low speed winding works, and drives vehicle to promote moment of torsion with low gear.
Three gear intelligent electronic controllers control motor winding and switch effect: because three gear intelligent electronic controllers are by control 2 group relay switch motor three-phase windings respectively, speed discrepancy between controller three gears is less, so conversion effect is more steady, comfortable; By controlling 2 group relaies switch motor three-phase windings respectively, highlighting variety and the alerting ability of switching mode, adding moment of torsion when low speed starting and climbing, improving the controller performance of controller; Also improve the efficiency of motor simultaneously; Compared with the intelligent electronic controller of folk art term position, add a gear and be just the increase in an efficient point, therefore the controller performance of three gear intelligent electronic controllers is better, can fully the operation high efficiency of digging motor and the large superperformance of output torque.
Switch in time, accurately in order to ensure 2 group relaies, this intelligent electronic controller devises electric gear change circuit, as shown in Figure 1.
After low speed winding drive circuit fault in controller, controller is positioned at two gear switch fault-tolerant operation mode, fault-tolerant Enable Pin JDQ_L_EN puts 1, how the signal JDQ_L now no matter controlling low speed winding drive circuit break-make changes, metal-oxide-semiconductor QSS1 closes, the coil blackout of relay A, fault winding drive circuit disconnects all the time.Like this, what access all the time when guaranteeing that controller runs is middling speed winding drive circuit and high speed winding drive circuit, improves reliability and the service life of controller.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (2)
1. an electric vehicle third gear controller, comprise micro controller system and relay signal switching modulate circuit, it is characterized in that: described relay signal switches modulate circuit and comprises the first driving circuit and the second driving circuit, described first driving circuit is by the coil conducting of an I/O port JDQ_L drived control relay A of micro controller system or shutoff, described second driving circuit is by the coil conducting of the 2nd I/O port JDQ_H drived control relay B of micro controller system or shutoff, described first driving circuit comprises aerotron QSS2 and metal-oxide-semiconductor QSS1, the base stage of described aerotron QSS2 is connected with micro controller system the one I/O port JDQ_L by resistance RSS1, the base stage of described aerotron QSS2 is by pull down resistor RSS2 ground connection, the grounded emitter of aerotron QSS2, the collecting electrode of described aerotron QSS2 connects 12v power supply by a resistance RSS7, connect the grid of metal-oxide-semiconductor QSS1 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS1 connects the positive pole of sustained diode SS1, the source ground of described metal-oxide-semiconductor QSS1, the negative pole of described sustained diode SS1 connects car load power supply, the coils from parallel connection of coils of described relay A is at the two ends of described sustained diode SS1, described second driving circuit comprises aerotron QSS4 and metal-oxide-semiconductor QSS3, the base stage of described aerotron QSS4 is connected with micro controller system the 2nd I/O port JDQ_H by resistance RSS3, the base stage of described aerotron QSS4 is by pull down resistor RSS4 ground connection, the grounded emitter of aerotron QSS4, the collecting electrode of described aerotron QSS4 connects 12v power supply by a resistance RSS8, connect the grid of metal-oxide-semiconductor QSS3 simultaneously, the drain electrode of described metal-oxide-semiconductor QSS3 connects the positive pole of sustained diode SS2, the source ground of described metal-oxide-semiconductor QSS3, the negative pole of described sustained diode SS2 connects car load power supply, the coils from parallel connection of coils of described relay B is at the two ends of described sustained diode SS2, the three-phase output end mouth of described Micro Controller Unit (MCU) driving motor-drive circuit is respectively by the low gear of transfer relay A and relay B and motor, mid ranger or high speed gear winding switching, motor Hall element is connected with micro controller system by hall signal modulate circuit, described relay signal switches the control end of the mouth connection transfer relay A and relay B of modulate circuit.
2. electric vehicle third gear controller according to claim 1, it is characterized in that: described first driving circuit is provided with fault-tolerant enable signal modulate circuit, described fault-tolerant enable signal modulate circuit comprises aerotron QSS5, resistance RSS6 and resistance RSS5, the collecting electrode of the collecting electrode connecting triode QSS5 of described aerotron QSS2, the emitter of the emitter connecting triode QSS5 of described aerotron QSS2, the base stage of described aerotron QSS5 is by pull down resistor RSS6 ground connection, the base stage of described aerotron QSS5 is connected with micro controller system by resistance RSS5 introduces enable signal JDQ_L_EN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044896.3U CN204452101U (en) | 2015-01-22 | 2015-01-22 | Electric vehicle third gear controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044896.3U CN204452101U (en) | 2015-01-22 | 2015-01-22 | Electric vehicle third gear controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204452101U true CN204452101U (en) | 2015-07-08 |
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ID=53659032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520044896.3U Expired - Fee Related CN204452101U (en) | 2015-01-22 | 2015-01-22 | Electric vehicle third gear controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204452101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527454A (en) * | 2015-01-22 | 2015-04-22 | 天津小刀电动科技股份有限公司 | Three-gear controller for electric vehicle |
| CN109450298A (en) * | 2018-11-29 | 2019-03-08 | 惠州拓邦电气技术有限公司 | A kind of electric brake circuit, electric appliance and method |
-
2015
- 2015-01-22 CN CN201520044896.3U patent/CN204452101U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527454A (en) * | 2015-01-22 | 2015-04-22 | 天津小刀电动科技股份有限公司 | Three-gear controller for electric vehicle |
| CN109450298A (en) * | 2018-11-29 | 2019-03-08 | 惠州拓邦电气技术有限公司 | A kind of electric brake circuit, electric appliance and method |
| CN109450298B (en) * | 2018-11-29 | 2024-04-30 | 惠州拓邦电气技术有限公司 | Electronic brake circuit, electric appliance and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301802 nine Garden Industrial Park, Baodi District, Tianjin Patentee after: TIANJIN XIAODAO ELECTRIC TECHNOLOGY CO., LTD. Address before: 301802 nine Garden Industrial Park, Baodi District, Tianjin Patentee before: TIANJIN XIAODAO ELECTRIC TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |