CN104553884B - Ride steady comfortable electric car - Google Patents
Ride steady comfortable electric car Download PDFInfo
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- CN104553884B CN104553884B CN201510032393.9A CN201510032393A CN104553884B CN 104553884 B CN104553884 B CN 104553884B CN 201510032393 A CN201510032393 A CN 201510032393A CN 104553884 B CN104553884 B CN 104553884B
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- triode
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- motor
- gear
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- 238000004804 winding Methods 0.000 claims abstract description 68
- 239000004065 semiconductor Substances 0.000 claims description 25
- 230000002459 sustained effect Effects 0.000 claims description 16
- 230000003750 conditioning effect Effects 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 101100364280 Oryza sativa subsp. japonica RSS3 gene Proteins 0.000 claims description 5
- 101100150875 Oryza sativa subsp. japonica SUS1 gene Proteins 0.000 claims description 5
- 101100478969 Oryza sativa subsp. japonica SUS2 gene Proteins 0.000 claims description 5
- 101100478972 Oryza sativa subsp. japonica SUS3 gene Proteins 0.000 claims description 5
- 101100004663 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) BRR2 gene Proteins 0.000 claims description 5
- 101100504519 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GLE1 gene Proteins 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Control Of Ac Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
What the present invention was provided ride steady comfortable electric car, including controller and relay；Relay includes two single relays being integrated in a housing, and one has common port one without common port, and previous relay normally-closed contact is connected with the movable contact of another relay；The signal switching modulate circuit of controller includes two drive circuits, respectively by two I/O ports drive control relay A, B of single-chip microcomputer coil on or off, the three-phase output end mouth of motor-drive circuit respectively by switch relay A, B and motor it is low, in or top gear winding connect, Hall sensor is connected by hall signal modulate circuit with single-chip microcomputer, relay modulate circuit connection relay A, B control end.Because the present invention using three-speed motor, three fast controllers and third gear relay controls the speed discrepancy between the speed of electric car, therefore three gears smaller, conversion effect is relatively more steady, comfortably；Controller possesses the fault tolerance that third gear becomes two grades.
Description
Technical field
The invention belongs to vehicle technology field, it is related to one kind and rides steady comfortable electric car.
Background technology
Existing electric car is usually two grades of electric cars, and generally there are the following problems for two grades of electric cars：1. conversion is not enough put down
Surely, comfortably；The need for 2. single relay can not meet multi gear switching；How to solve the above problems as those skilled in the art
The problem of research.
The content of the invention
The problem to be solved in the present invention is to provide a kind of steady comfortable and relay electric car easy to install of riding.
To solve the above problems, the technical solution adopted by the present invention：One kind is ridden steady comfortable electric car, including three speed
Controller and third gear relay；
The third gear relay includes being provided with two in shell and pedestal, the closing space that the shell and the pedestal are constituted
Individual independent relay unit (i.e. relay A and relay B), first relay unit (relay A) is inserted equipped with common port
Head, another relay unit (relay B) is unworthy of common port plug, the normally-closed contact of previous relay unit with another after
The movable contact connection of electric appliance unit；
Described three fast controllers include single-chip microcomputer and relay signal switching modulate circuit, and the relay signal switching is adjusted
Managing circuit includes the first drive circuit and the second drive circuit, and first drive circuit is by the first I/O ports of single-chip microcomputer
JDQ_L drive control relays A coil on or off, second drive circuit is by the 2nd I/O ports of single-chip microcomputer
JDQ_H drive control relays B coil on or off, first drive circuit includes triode QSS2 and metal-oxide-semiconductor
QSS1, the triode QSS2 base stage are connected by resistance RSS1 with the I/O ports JDQ_L of single-chip microcomputer the first, the triode
QSS2 base stage is grounded by pull down resistor RSS2, triode QSS2 grounded emitter, the colelctor electrode of the triode QSS2
12v power supplys are connect by a resistance RSS7, while metal-oxide-semiconductor QSS1 grid is connected, the drain electrode connection afterflow two of the metal-oxide-semiconductor QSS1
Pole pipe DSS1 positive pole, the source ground of the metal-oxide-semiconductor QSS1, the negative pole of the sustained diode SS1 connects vehicle power supply, institute
Relay A coils from parallel connection of coils is stated at the two ends of the sustained diode SS1；Second drive circuit includes triode QSS4
With metal-oxide-semiconductor QSS3, the base stage of the triode QSS4 is connected by resistance RSS3 with the I/O ports JDQ_H of single-chip microcomputer the 2nd, described
Triode QSS4 base stage is grounded by pull down resistor RSS4, triode QSS4 grounded emitter, the triode QSS4's
Colelctor electrode connects 12v power supplys by a resistance RSS8, while metal-oxide-semiconductor QSS3 grid is connected, the drain electrode connection of the metal-oxide-semiconductor QSS3
Sustained diode SS2 positive pole, the source ground of the metal-oxide-semiconductor QSS3, the negative pole of the sustained diode SS2 connects vehicle electricity
Source, the coils from parallel connection of coils of the relay B is at the two ends of the sustained diode SS2, the MCU driving motor-drive circuit
Three-phase output end mouth respectively by switch relay A and relay B and motor low or first gear, mid ranger or top gear winding connect
Connect, motor Hall sensor is connected by hall signal modulate circuit with single-chip microcomputer, the relay signal switching modulate circuit
Output end connection switching relay A and relay B control end.
First drive circuit is provided with fault-tolerant enable signal conditioning circuit, the fault-tolerant enable signal conditioning circuit bag
Triode QSS5, resistance RSS6 and resistance RSS5, the triode QSS2 colelctor electrode connecting triode QSS5 colelctor electrode are included,
The emitter stage connecting triode QSS5 of triode QSS2 emitter stage, the base stage of the triode QSS5 passes through pull down resistor
RSS6 is grounded, and the base stage of the triode QSS5 is connected introducing with single-chip microcomputer by resistance RSS5 and enables signal JDQ_L_EN.
The normally-closed contact of the previous relay unit is L-shaped of the outside shell side to extension.
The normally-closed contact of the previous relay unit is corresponding with latter relay unit dynamic tactile by connecting line respectively
Point connection.
The exit root of each plug scribbles high density waterproof on junction and pedestal between the shell and pedestal
Glue.
The present invention has the advantages and positive effects of：Because the present invention is controlled using three fast controllers and third gear relay
Conversion efficiency between the speed of electric car processed, therefore three gears of controller is improved, and the speed discrepancy of motor diminishes, conversion effect
It is more steady, comfortable, the fault-tolerant enable signal conditioning circuit of the first drive circuit connection of controller, it is ensured that work as controller
Low speed winding drive circuit is automatically switched in controller in the case of going wrong by fault-tolerant enable signal conditioning circuit
Fast winding drive circuit, makes controller three-phase line acquiescence and the connection of motor middling speed winding, and motor continues work with mid ranger
Make, run on height folk art term fault-tolerant mode, the property of folk art term controller is so remained while possessing third gear controller function
But also with fault tolerance while energy, very high-adaptability；Relay is integrated in a housing using two existing relays, is saved
A common port has been omited, in good order, compared to two single relays saving spaces, in use, easy-to-connect are connected up.
Brief description of the drawings
Fig. 1 is the schematic diagram of invention relay signal switching modulate circuit；
Fig. 2 is the circuit theory diagrams that invention relay signal switching modulate circuit coordinates relay；
Fig. 3 is controller 12v power circuit principle figures of the present invention；
Fig. 4 is that controller 12v of the present invention turns 5v circuit theory diagrams；
Fig. 5 is that controller 5v of the present invention turns 3.3v circuit theory diagrams；
Fig. 6 is SCM peripheral circuit theory diagrams of the present invention；
Fig. 7 is controller instrument signal modulate circuit schematic diagram of the present invention；
Fig. 8 is controller handle signal conditioning circuit of the present invention；
Fig. 9 is controller temperature protection circuit schematic diagram of the present invention；
Figure 10 is controller hall signal modulate circuit schematic diagram of the present invention；
Figure 11 is controller current detection circuit schematic diagram of the present invention；
Figure 12 is that controller excessively stream of the present invention interrupts protection circuit schematic diagram；
Figure 13 is motor three-phase drive circuit schematic diagram of the present invention；
Figure 14 is the schematic diagram that invention relay signal switching modulate circuit coordinates relay；
Figure 15 is the control flow chart of the present invention；
Figure 16 is the faults-tolerant control flow chart of the present invention；
Figure 17 is that smart electronicses shelves controller of the present invention sets rotating speed, current double-hysteresis-loop control schematic diagram；
Figure 18 is the relay solid structural representation of the present invention；
Figure 19 is the schematic diagram of invention relay；
Figure 20 is the internal structure schematic diagram of invention relay；
Figure 21 is the stereogram of the internal structure of invention relay；
Figure 22 is the catenation principle figure of machine winding of the present invention.
In figure：1. shell, 2. pedestals, 31,32. power supply terminals, 33. normally opened contacts, 34. normally-closed contacts, 35. movable contacts,
4. electromagnet, 5. connecting lines.
Embodiment
Now present invention progress is relatively described in detail with reference to the accompanying drawings, as shown in Figure 1-22, one kind is ridden steady comfortable electric
Motor-car, including three-speed motor, three fast controllers and third gear relay；
The three-speed motor includes rotor and stator, and the stator includes motor shaft, unshakable in one's determination and winding, and the winding is around in
On the iron core, the iron core is fixed on the motor shaft；The winding include low speed winding, middling speed winding and at a high speed around
Group；The low speed winding includes coil U1, V1, W1, is respectively connected with the terminal of motor low or first gear outlet；The middling speed winding
Extend out to 3/5 position of low speed winding coil overall length respectively by low speed winding coil U1, V1, W1 head end, draw respectively
Go out U2, V2, W2, be connected with the terminal of motor mid ranger outlet；The high speed winding is by low speed winding coil U1, V1, W1
Head end is extended out at 1/2 position of low speed winding coil overall length respectively, and U3, V3, W3 are drawn respectively, is gone out with motor top gear
The terminal of line is connected；The tail end of the tail end of the coil U1, coil V1 tail end and coil W1 is contacted；
The motor shaft is hollow shaft, the extractions line terminals of the coil stretch out the one or both ends of hollow shaft with accordingly
Motor lead-out wire terminal connection.Core motor axle can save empty by lead-out wires of coil terminal by wherein being drawn by two ends
Between while can cause the arrangement more rational and orderly of lead, facilitate wiring；
Because motor of the present invention uses the speed discrepancy between three groups of windings, three groups of windings smaller, therefore conversion effect compares
Steadily, comfortably；Coiling is carried out by three groups of windings, the copper factor of list groove unshakable in one's determination is improved, and then adds low speed starting
Moment of torsion during with climbing, improves the power of motor；The efficiency of motor is also improved simultaneously；Compared with double-speed motor, add
One gear is just the increase in an efficient point, therefore its moment of torsion is bigger, and load capacity is stronger, and mileages of continuation is longer.
It is provided with third gear relay, including shell 1 and pedestal 2, the closing space of shell 1 and the pedestal 2 composition
Two independent relay unit A and B, relay unit A and relay unit B include two-way spring, two-way electromagnet, two-way
Armature, 12 stationary contacts (triplets, two groups of normally-closed contacts, two groups of normally opened contacts), six movable contacts 35 (triplets),
Pedestal 2 and rear shell, the relay unit A are furnished with common port plug, and relay unit B is unworthy of common port plug, relay list
First A normally-closed contact 34 is connected with relay unit B movable contact 35.Pass through the mutual of relay unit A and relay unit B
The third gear for coordinating to complete relay, which becomes, to change jobs.
The normally-closed contact 34 of the relay unit A is the L-shaped extended to the direction of shell 1.Facilitate the welding of connecting line, together
Time save space.
The normally-closed contact 34 of the relay unit A passes through the movable contact 35 corresponding with relay unit B of connecting line 5 respectively
Connection.Wiring is more neat.
The exit root of each plug scribbles high density and prevented on junction and pedestal 2 between the shell 1 and pedestal 2
Glue.Cause to damage to avoid relay inner inlet.
The normally opened contact 33 of the relay unit A is connected with motor low or first gear, the normally-closed contact of the relay unit B
34 are connected with motor mid ranger, and the normally opened contact 33 of the relay unit B is connected with motor top gear.
Relay construction and the course of work are as follows：
Relay unit A common port plug is connected with movable contact 35, is touched in no power with the normally closed of relay unit A
Point 34 is turned on, and when being powered, relay unit A movable contact 35 is turned on relay unit A normally opened contact 33, (this state
To connect motor low speed winding)；During relay unit A electromagnet power-off, relay unit A common port and relay unit A
Normally-closed contact 34 turn on, because relay unit A normally-closed contact 34 is connected with relay unit B movable contact 35,
Now relay unit B electromagnet is discharged, and relay unit A common port is turned on relay unit B normally-closed contact 34,
(this state connects motor middling speed winding)；When the energization of relay unit B electromagnet, relay unit A common port and relay list
First B normally opened contact 33 is turned on, (this state connects motor high speed winding).
Three fast controllers include single-chip microcomputer, relay signal switching modulate circuit, power circuit, instrument signal conditioning electricity
Road, handle signal conditioning circuit, instrument signal modulate circuit, temperature protection circuit, hall signal modulate circuit, current detecting electricity
Road, excessively stream interrupt protection circuit, motor three-phase drive circuit etc.；
As shown in Fig. 1,2,14, relay signal switching modulate circuit includes the first drive circuit and the second drive circuit,
First drive circuit by single-chip microcomputer the first I/O ports JDQ_L drive control relays A coil on or off, institute
State the second drive circuit by single-chip microcomputer the 2nd I/O ports JDQ_H drive control relays B coil on or off, it is described
First drive circuit includes triode QSS2 and metal-oxide-semiconductor QSS1, and the base stage of the triode QSS2 passes through resistance RSS1 and monolithic
The I/O ports JDQ_L connections of machine the first, the base stage of the triode QSS2 is grounded by pull down resistor RSS2, triode QSS2's
Grounded emitter, the colelctor electrode of the triode QSS2 connects 12v power supplys by a resistance RSS7, while connecting metal-oxide-semiconductor QSS1's
Grid, the drain electrode connection sustained diode SS1 of metal-oxide-semiconductor QSS1 positive pole, the source ground of the metal-oxide-semiconductor QSS1 is described
Sustained diode SS1 negative pole connects vehicle power supply, and the coils from parallel connection of coils of the relay A is the two of the sustained diode SS1
End；Second drive circuit includes triode QSS4 and metal-oxide-semiconductor QSS3, and the base stage of the triode QSS4 passes through resistance RSS3
It is connected with the I/O ports JDQ_H of single-chip microcomputer the 2nd, the base stage of the triode QSS4 is grounded by pull down resistor RSS4, triode
QSS4 grounded emitter, the colelctor electrode of the triode QSS4 connects 12v power supplys by a resistance RSS8, while connecting metal-oxide-semiconductor
QSS3 grid, the drain electrode connection sustained diode SS2 of metal-oxide-semiconductor QSS3 positive pole, the source electrode of the metal-oxide-semiconductor QSS3 connects
Ground, the negative pole of the sustained diode SS2 connects vehicle power supply (rated voltage of vehicle power supply is 48v or 60v etc.), it is described after
Electrical equipment B coils from parallel connection of coils is at the two ends of the sustained diode SS2, and the three-phase of the MCU driving motor-drive circuit is defeated
Exit port is connected by switching relay A and relay B and motor low or first gear, mid ranger or top gear winding respectively, motor
Hall sensor is connected by hall signal modulate circuit with single-chip microcomputer, the output end of the relay signal switching modulate circuit
Connection switching relay A and relay B control end.
First drive circuit is provided with fault-tolerant enable signal conditioning circuit, the fault-tolerant enable signal conditioning circuit bag
Triode QSS5, resistance RSS6 and resistance RSS5, the triode QSS2 colelctor electrode connecting triode QSS5 colelctor electrode are included,
The emitter stage connecting triode QSS5 of triode QSS2 emitter stage, the base stage of the triode QSS5 passes through pull down resistor
RSS6 is grounded, and the base stage of the triode QSS5 is connected introducing with single-chip microcomputer by resistance RSS5 and enables signal JDQ_L_EN.
Controller operation principle：
1st, relay signal switching modulate circuit principle：Resistance RSS1, RSS3 are current-limiting resistance, are limited by RSS1, RSS3
Determine single-chip microcomputer I/O port driving triode QSS2, QSS4 driving current, resistance RSS2, RSS4 are pull down resistor, work as single-chip microcomputer
When electrification reset port is in high-impedance state, by RSS2, RSS4, which drags down QSS2, QSS4 base stage, turns off QSS2, QSS4,
The conducting of QSS1, QSS3 control relay is closed, when QSS1, QSS3 grid are 12V, i.e. triode QSS, and 2, QSS4 closes
When, QSS1, QSS3 conducting, relay A, B coil adhesive, when QSS1, QSS3 grid are 0V, i.e. triode QSS, 2, QSS4 leads
When logical, relay A, B releasing winding.Because relay is perceptual device, larger backward voltage can be produced when the moment of shut-off,
Diode DSS1, DSS2 play afterflow in cut-off moment, and the backward voltage of relay inductance generation is reduced or eliminated,
Play a part of protection drive circuit and relay.
2nd, three fast switching principle：When vehicle is powered and remains static, the work of controller low speed winding control module：
Relay A coil adhesives, relay B releasing windings, now the normally opened contact of relay A coils led with controller three-phase A, B, C
Logical, the work of motor low speed winding drives vehicle with low or first gear；Motor speed constantly rises, when controller detects motor speed
When being less than 18A more than 10KM and electric current, the work of controller middling speed winding control module：Relay A releasing windings, relay B lines
Circle release, now relay B normally-closed contact and controller three-phase A, B, C conducting, the work of motor middling speed winding, are driven with mid ranger
Motor-car；Motor speed still constantly rises, when controller, which detects motor speed, is less than 15A more than 18KM and electric current, relay
Device A releasing windings, relay B coil adhesives, the work of controller high speed winding control module：Now relay B normally opened contact
Turned on controller three-phase A, B, C, the work of motor high speed winding drives vehicle with top gear；
Conversely, when vehicle is run with top gear, and controller detects motor speed less than 16KM, controller middling speed winding
Control module works：Relay A releasing windings, relay B releasing windings, now relay B normally-closed contact and controller three
Phase A, B, C are turned on, the work of motor middling speed winding, and vehicle is driven with mid ranger；When controller detects motor speed less than 8KM
When, the work of controller low speed winding module：Relay A coil adhesives, relay B releasing windings, now relay A coils is normal
Open contact to turn on controller three-phase A, B, C, the work of motor low speed winding drives vehicle to lift moment of torsion with low or first gear.
Three gear intelligent electronic controller controlled motor winding transition effects：Because three gear intelligent electronic controllers pass through
The speed discrepancy for controlling 2 group relays to distinguish between switch motor three-phase windings, three gears of controller is smaller, so conversion effect
Compare steady, comfortable；By control 2 group relays distinguish switch motor three-phase windings, highlight switching mode diversity and
Flexibility, moment of torsion when adding low speed starting and climbing, improves the control performance of controller；Also improve motor simultaneously
Efficiency；Compared with the intelligent electronic controller of folk art term position, add a gear and be just the increase in an efficient point, therefore three gears
The control performance of intelligent electronic controller more preferably, be capable of fully digging motor operation efficiently and output torque greatly good spy
Property.
In time, accurately switch in order to ensure 2 group relays, this intelligent electronic controller devises electric gear change circuit, such as
Shown in Fig. 1.
After low speed winding drive circuit failure in controller, controller is located at double gear switch fault-tolerant operation modes, holds
Wrong Enable Pin JDQ_L_EN puts 1, now no matter controls how the signal JDQ_L of low speed winding drive circuit break-make changes, metal-oxide-semiconductor
QSS1 is closed, and relay A coil blackout, failure winding drive circuit disconnects all the time.Thus it is ensured that beginning during controller operation
What terminating entered is middling speed winding drive circuit or high speed winding drive circuit, improves the reliability and service life of controller.
Embodiments of the invention are described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All equivalent changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (5)
- The steady comfortable electric car 1. one kind is ridden, it is characterised in that：Including three fast controllers and third gear relay；The third gear relay includes only provided with two in shell and pedestal, the closing space that the shell and the pedestal are constituted Vertical relay unit, first relay unit is furnished with common port plug, and another relay unit is unworthy of common port plug, The normally-closed contact of previous relay unit is connected with the movable contact of another relay unit；Described three fast controllers include single-chip microcomputer and relay signal switching modulate circuit, the relay signal switching conditioning electricity Road includes the first drive circuit and the second drive circuit, and first drive circuit is driven by the first I/O ports JDQ_L of single-chip microcomputer Dynamic control relay A coil on or off, second drive circuit is driven by the 2nd I/O ports JDQ_H of single-chip microcomputer Control relay B coil on or off, first drive circuit includes triode QSS2 and metal-oxide-semiconductor QSS1, described three Pole pipe QSS2 base stage is connected by resistance RSS1 with the I/O ports JDQ_L of single-chip microcomputer the first, and the base stage of the triode QSS2 is led to Pull down resistor RSS2 ground connection is crossed, triode QSS2 grounded emitter, the colelctor electrode of the triode QSS2 passes through a resistance RSS7 connects 12v power supplys, while metal-oxide-semiconductor QSS1 grid is connected, the drain electrode connection sustained diode SS1's of the metal-oxide-semiconductor QSS1 Positive pole, the source ground of the metal-oxide-semiconductor QSS1, the negative pole of the sustained diode SS1 connects vehicle power supply, the relay A's Coils from parallel connection of coils is at the two ends of the sustained diode SS1；Second drive circuit includes triode QSS4 and metal-oxide-semiconductor QSS3, The base stage of the triode QSS4 is connected by resistance RSS3 with the I/O ports JDQ_H of single-chip microcomputer the 2nd, the triode QSS4's Base stage is grounded by pull down resistor RSS4, triode QSS4 grounded emitter, and the colelctor electrode of the triode QSS4 passes through one Resistance RSS8 connects 12v power supplys, while metal-oxide-semiconductor QSS3 grid is connected, the drain electrode connection fly-wheel diode of the metal-oxide-semiconductor QSS3 DSS2 positive pole, the source ground of the metal-oxide-semiconductor QSS3, the negative pole of the sustained diode SS2 connects vehicle power supply, it is described after Electrical equipment B coils from parallel connection of coils is at the two ends of the sustained diode SS2, and the three-phase of the MCU driving motor-drive circuit is defeated Exit port is connected by switching relay A and relay B and motor low or first gear, mid ranger or top gear winding respectively, motor Hall sensor is connected by hall signal modulate circuit with single-chip microcomputer, the output end of the relay signal switching modulate circuit Connection switching relay A and relay B control end；When vehicle is powered and remains static, the work of controller low speed winding control module：Relay A coil adhesives, after Electrical equipment B releasing windings, the now normally opened contact of relay A coils and controller three-phase A, B, C conducting, motor low speed winding work Make, vehicle is driven with low or first gear；Motor speed constantly rises, and when controller is detected, motor speed is more than 10KM and electric current is less than During 18A, the work of controller middling speed winding control module：Relay A releasing windings, relay B releasing windings, now relay B Normally-closed contact and controller three-phase A, B, C turn on, the work of motor middling speed winding drives vehicle with mid ranger；Motor speed is still Constantly rise, when controller, which detects motor speed, is less than 15A more than 18KM and electric current, relay A releasing windings, relay B coil adhesives, the work of controller high speed winding control module：Now relay B normally opened contact is led with controller three-phase A, B, C Logical, the work of motor high speed winding drives vehicle with top gear；Conversely, when vehicle is run with top gear, and controller detects motor speed less than 16KM, the control of controller middling speed winding Module works：Relay A releasing windings, relay B releasing windings, now relay B normally-closed contact and controller three-phase A, B, C are turned on, the work of motor middling speed winding, and vehicle is driven with mid ranger；When controller detects motor speed less than 8KM, control Device low speed winding module work processed：Relay A coil adhesives, relay B releasing windings, now relay A coils is normally opened tactile Point is turned on controller three-phase A, B, C, the work of motor low speed winding, drives vehicle to lift moment of torsion with low or first gear.
- 2. steady comfortable electric car according to claim 1 of riding, it is characterised in that：Set on first drive circuit There is fault-tolerant enable signal conditioning circuit, the fault-tolerant enable signal conditioning circuit includes triode QSS5, resistance RSS6 and resistance RSS5, the triode QSS2 colelctor electrode connecting triode QSS5 colelctor electrode, the emitter stage connection of the triode QSS2 Triode QSS5 emitter stage, the base stage of the triode QSS5 is grounded by pull down resistor RSS6, the triode QSS5's Base stage is connected introducing with single-chip microcomputer by resistance RSS5 and enables signal JDQ_L_EN.
- 3. steady comfortable electric car according to claim 1 of riding, it is characterised in that：The previous relay unit Normally-closed contact is L-shaped of the outside shell side to extension.
- 4. steady comfortable electric car according to claim 3 of riding, it is characterised in that：The previous relay unit Normally-closed contact is connected by connecting line movable contact corresponding with latter relay unit respectively.
- 5. the steady comfortable electric car of riding according to claim any one of 1-4, it is characterised in that：The shell and base The exit root of each plug scribbles high density marine glue on junction and pedestal between seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201040494Y (en) * | 2006-09-07 | 2008-03-26 | 江苏九隆机车科技有限公司 | Shift adjustable electric vehicle control circuit |
| CN103909838A (en) * | 2013-12-16 | 2014-07-09 | 天津小刀电动科技股份有限公司 | Double-character electronic gear electric tricycle driving device and driving method |
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| JP2827253B2 (en) * | 1989-02-28 | 1998-11-25 | スズキ株式会社 | Motor control device for driving electric vehicles |
| CN103580340A (en) * | 2012-08-11 | 2014-02-12 | 刘荣坤 | Three-phase three-gear adjustable-speed motor for electric vehicle |
| CN204452103U (en) * | 2015-01-22 | 2015-07-08 | 天津小刀电动科技股份有限公司 | To ride steadily comfortable battery-driven car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201040494Y (en) * | 2006-09-07 | 2008-03-26 | 江苏九隆机车科技有限公司 | Shift adjustable electric vehicle control circuit |
| CN103909838A (en) * | 2013-12-16 | 2014-07-09 | 天津小刀电动科技股份有限公司 | Double-character electronic gear electric tricycle driving device and driving method |
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