CN104527453B - Three speed electric motor cars - Google Patents
Three speed electric motor cars Download PDFInfo
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- CN104527453B CN104527453B CN201510032744.6A CN201510032744A CN104527453B CN 104527453 B CN104527453 B CN 104527453B CN 201510032744 A CN201510032744 A CN 201510032744A CN 104527453 B CN104527453 B CN 104527453B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
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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
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Abstract
The three speed electric motor cars that the present invention provides, including motor, controller and relay；The winding of motor includes high, medium and low speed third gear；Relay includes two the single relays being integrated in a housing, and one has common port one to be connected with the movable contact of another relay without common port, previous relay normally-closed contact；The signal switching modulate circuit of controller includes two drive circuits, the coil on or off controlling relay A, B is driven respectively by two I/O ports of single-chip microcomputer, the three-phase output end mouth of motor-drive circuit respectively by switching relay A, B and motor low, in or top gear winding be connected, motor Hall element is connected with single-chip microcomputer by hall signal modulate circuit, and relay modulate circuit connects the control end of relay A, B.Owing to the present invention uses three-speed motor, three speed controllers and third gear relay to control the speed of electric motor car, therefore the speed discrepancy between three gears is less, and conversion effect is more steady, comfortable.
Description
Technical field
The invention belongs to vehicle technology field, relate to a kind of three speed electric motor cars.
Background technology
Existing electric motor car is usually two grades of electric motor cars, and two grades of electric motor cars are usually present following problem: 1. turn
Change the most steady, comfortable；2. motor power is not enough；3. motor working efficiency is low；The most single relay is not
The needs of many grades of switchings can be met；How to solve the problems referred to above and become the class of those skilled in the art's research
Topic.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of changes the most comfortable three speed electric motor cars.
For solving the problems referred to above, the technical solution used in the present invention: a kind of three speed electric motor cars, including three speed
Motor, three speed controller and third gear relays；
Described three-speed motor includes that rotor and stator, described stator include motor shaft, iron core and winding, institute
Stating winding to be around on described iron core, described iron core is fixed on described motor shaft；Described winding includes low speed
Winding, middling speed winding and high speed winding；Described low speed winding includes coil U1, V1, W1, low with motor
The terminal of speed shelves outlet is respectively connected with；Described middling speed winding is by low speed winding coil U1, V1, W1
Head end extends out to 3/5 position of low speed winding coil overall length respectively, draws U2, V2, W2 respectively,
It is connected with the terminal of motor mid ranger outlet；Described high speed winding is by low speed winding coil U1, V1, W1
Head end extend out to 1/2 position of low speed winding coil overall length respectively, draw respectively U3, V3,
W3, is connected with the terminal of motor top gear outlet；The tail end of described coil U1, the tail end of coil V1
Contact with the tail end of coil W1；
Described third gear relay includes shell and pedestal, described shell and the closing space of described pedestal composition
Inside it is provided with two independent relay units (i.e. relay A and relay B), first relay list
Unit (relay A) is furnished with common port plug, and another relay unit (relay B) 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 speed controllers include single-chip microcomputer and relay signal switching modulate circuit, described relay
Signal switching modulate circuit include the first drive circuit and the second drive circuit, described first drive circuit by
Oneth I/O port JDQ_L of single-chip microcomputer drives the coil on or off controlling relay A, and described the
Two drive circuits by single-chip microcomputer the 2nd I/O port JDQ_H drive control relay B coil conducting or
Turning off, described first drive circuit includes audion QSS2 and metal-oxide-semiconductor QSS1, described audion QSS2
Base stage be connected with single-chip microcomputer the oneth I/O port JDQ_L by resistance RSS1, described audion QSS2
Base stage by pull down resistor RSS2 ground connection, the grounded emitter of audion QSS2, described audion QSS2
Colelctor electrode connect 12v power supply by a resistance RSS7, be simultaneously connected with the grid of metal-oxide-semiconductor QSS1, described
The drain electrode of metal-oxide-semiconductor QSS1 connects the positive pole of sustained diode SS1, and the source electrode of described metal-oxide-semiconductor QSS1 connects
Ground, the negative pole of described sustained diode SS1 connects car load power supply, and the coils from parallel connection of coils of described relay A exists
The two ends of described sustained diode SS1；Described second drive circuit includes audion QSS4 and metal-oxide-semiconductor
QSS3, the base stage of described audion QSS4 is by resistance RSS3 and single-chip microcomputer the 2nd I/O port JDQ_H
Connecting, the base stage of described audion QSS4 passes through pull down resistor RSS4 ground connection, and audion QSS4 sends out
Emitter grounding, the colelctor electrode of described audion QSS4 connects 12v power supply by a resistance RSS8, connects simultaneously
Connecing the grid of metal-oxide-semiconductor QSS3, the drain electrode of described metal-oxide-semiconductor QSS3 is just connecting sustained diode SS2
Pole, 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 at the two ends of described sustained diode SS2, described Micro Controller Unit (MCU) driving
The three-phase output end mouth of motor-drive circuit low by switching relay A and relay B and motor respectively
Speed shelves, mid ranger or top gear winding connect, motor Hall element by hall signal modulate circuit with
Single-chip microcomputer connects, and the outfan of described relay signal switching modulate circuit connects switching relay A and continues
The control end of electrical equipment B.
Described first drive circuit is provided with fault-tolerant enable signal conditioning circuit, and described fault-tolerant enable signal is adjusted
Reason circuit includes audion QSS5, resistance RSS6 and resistance RSS5, the current collection of described audion QSS2
The colelctor electrode of pole connecting triode QSS5, the emitter stage connecting triode QSS5 of described audion QSS2
Emitter stage, the base stage of described audion QSS5 pass through pull down resistor RSS6 ground connection, described audion QSS5
Base stage by resistance RSS5 is connected with single-chip microcomputer introduce enable signal JDQ_L_EN.
Described motor shaft is hollow axle, and the lead-out wire terminal of described coil all stretches out one end or two of hollow axle
Hold and connect with corresponding motor lead-out wire terminal.
The normally-closed contact of described previous relay unit is that outside shell side is to the L-shaped extended.
The normally-closed contact of described previous relay unit is respectively by connecting line and a rear relay unit pair
The movable contact answered connects.
On junction between described shell and pedestal and pedestal, the exit root of each plug all scribbles height
Density marine glue.
The present invention has the advantage that with good effect: owing to the present invention uses three-speed motor, three speed to control
Device and third gear relay control the speed of electric motor car, the therefore conversion efficiency between three gears of controller
Improving, the speed discrepancy of motor diminishes, and conversion effect is more steady, comfortable；Controller has the first driving
The fault-tolerant enable signal conditioning circuit that circuit connects, it is ensured that when controller low speed winding drive circuit goes out
Automatically switched to the middling speed winding of controller by fault-tolerant enable signal conditioning circuit in the case of existing problem
Drive circuit, makes controller three-phase line acquiescence and motor middling speed winding connect, drives motor with mid ranger
Work on, run on height folk art term fault-tolerant mode, so protect while possessing third gear controller function
Fault tolerance is possessed again while having stayed the performance of folk art term controller, very high-adaptability；Relay uses two
Individual existing relay is integrated in a housing, eliminates a common port, connects up in good order, compare
Space, during use, easy-to-connect is saved in two single relays.
Accompanying drawing explanation
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 figure 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 stream interruption protection circuit schematic diagram crossed by controller of the present invention；
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 electronics shelves controller of the present invention arranges 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 axonometric chart of the internal structure of invention relay；
Figure 22 is the catenation principle figure of motor winding of the present invention.
In figure: 1. shell, 2. pedestal, 31,32. power supply terminals, 33. normally opened contacts, 34. is normally closed
Contact, 35. movable contacts, 4. electric magnet, 5. connecting line.
Detailed description of the invention
The most with reference to the accompanying drawings the present invention is carried out explanation in greater detail, as shown in Figure 1-22, a kind of three speed electricity
Motor-car, including three-speed motor, three speed controller and third gear relays；
Described three-speed motor includes that rotor and stator, described stator include motor shaft, iron core and winding, institute
Stating winding to be around on described iron core, described iron core is fixed on described motor shaft；Described winding includes low speed
Winding, middling speed winding and high speed winding；Described low speed winding includes coil U1, V1, W1, low with motor
The terminal of speed shelves outlet is respectively connected with；Described middling speed winding is by low speed winding coil U1, V1, W1
Head end extends out to 3/5 position of low speed winding coil overall length respectively, draws U2, V2, W2 respectively,
It is connected with the terminal of motor mid ranger outlet；Described high speed winding is by low speed winding coil U1, V1, W1
Head end extend out to 1/2 position of low speed winding coil overall length respectively, draw respectively U3, V3,
W3, is connected with the terminal of motor top gear outlet；The tail end of described coil U1, the tail end of coil V1
Contact with the tail end of coil W1；
Described motor shaft is hollow axle, and the lead-out wire terminal of described coil all stretches out one end or two of hollow axle
Hold and connect with corresponding motor lead-out wire terminal.Core motor axle can be by lead-out wires of coil terminal by it
In drawn by two ends, save while space so that the arrangement more rational and orderly of lead-in wire, conveniently connect
Line；
Owing to motor of the present invention uses three groups of windings, the speed discrepancy between three groups of windings is less, therefore changes
Effectiveness comparison is steady, comfortable；Carrying out coiling by three groups of windings, the copper factor of single cavity unshakable in one's determination is carried
Height, and then moment of torsion when adding low speed starting and climb, improve the power of motor；Also improve simultaneously
The efficiency of motor；Compared with double-speed motor, add a gear and be just the increase in an efficient point,
Therefore its moment of torsion is bigger, and load capacity is higher, and mileages of continuation is longer.
Third gear relay, including shell 1 and pedestal 2, described shell 1 and the envelope of described pedestal 2 composition
Two independent relay unit A and B, relay unit A and relay unit B it are provided with in closing space
Including two-way spring, two-way electric magnet, two-way armature, (triplet, two groups normal for 12 stationary contacts
Closed contact, two groups of normally opened contacts), six movable contacts 35 (triplet), pedestal 2 and back cover, institute
Stating relay unit A and be furnished with common port plug, relay unit B is unworthy of common port plug, relay list
Unit's normally-closed contact 34 of A is connected with the movable contact 35 of relay unit B.By relay unit A and
The third gear conversion work having cooperated to relay of relay unit B.
The normally-closed contact 34 of described relay unit A is the L-shaped extended to shell 1 direction.Conveniently connect
The welding of wiring, saves space simultaneously.
The normally-closed contact 34 of described relay unit A is respectively by connecting line 5 and relay unit B pair
The movable contact 35 answered connects.Connect up more neat.
On junction between described shell 1 and pedestal 2 and pedestal 2, the exit root of each plug is all coated with
There is high density marine glue.To avoid relay inner inlet to cause damaging.
The normally opened contact 33 of described relay unit A is connected with motor low or first gear, described relay unit B
Normally-closed contact 34 be connected with motor mid ranger, the normally opened contact 33 of described relay unit B and motor
Top gear connects.
Relay construction and work process are as follows:
The common port plug of relay unit A is connected with movable contact 35, when no power with relay list
The normally-closed contact 34 of unit A turns on, when energising, and movable contact 35 and the relay list of relay unit A
The normally opened contact 33 of unit A turns on, (this state is for connecing motor low speed winding)；Relay unit A's
During electric magnet power-off, the common port of relay unit A turns on the normally-closed contact 34 of relay unit A,
Owing to the normally-closed contact 34 of relay unit A connects with the movable contact 35 of relay unit B, this
Time relay unit B electric magnet release, the common port of relay unit A is normally closed with relay unit B's
Contact 34 turns on, (this state connects motor middling speed winding)；When relay unit B electric magnet is energized,
The common port of relay unit A turns on the normally opened contact 33 of relay unit B, and (this state connects electricity
Machine high speed winding).
Three speed controllers include single-chip microcomputer, relay signal switching modulate circuit, power circuit, instrument letter
Number modulate circuit, handle signal conditioning circuit, instrument signal modulate circuit, temperature protection circuit, Hall
Signal conditioning circuit, current detection circuit, 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
Two drive circuits, described first drive circuit is driven control to continue by an I/O port JDQ_L of single-chip microcomputer
The coil on or off of electrical equipment A, described second drive circuit is by the 2nd I/O port JDQ_H of single-chip microcomputer
Driving the coil on or off controlling relay B, described first drive circuit includes audion QSS2
With metal-oxide-semiconductor QSS1, the base stage of described audion QSS2 is by resistance RSS1 and single-chip microcomputer the oneth I/O
Port JDQ_L connects, and the base stage of described audion QSS2 passes through pull down resistor RSS2 ground connection, audion
The grounded emitter of QSS2, the colelctor electrode of described audion QSS2 connects 12v power supply by a resistance RSS7,
Being simultaneously connected with the grid of metal-oxide-semiconductor QSS1, the drain electrode of described metal-oxide-semiconductor QSS1 connects sustained diode SS1
Positive pole, the source ground of described metal-oxide-semiconductor QSS1, the negative pole of described sustained diode SS1 connects car load
Power supply (rated voltage of car load power supply is 48v or 60v etc.), the coils from parallel connection of coils of described relay A exists
The two ends of described sustained diode SS1；Described second drive circuit includes audion QSS4 and metal-oxide-semiconductor
QSS3, the base stage of described audion QSS4 is by resistance RSS3 and single-chip microcomputer the 2nd I/O port JDQ_H
Connecting, the base stage of described audion QSS4 passes through pull down resistor RSS4 ground connection, and audion QSS4 sends out
Emitter grounding, the colelctor electrode of described audion QSS4 connects 12v power supply by a resistance RSS8, connects simultaneously
Connecing the grid of metal-oxide-semiconductor QSS3, the drain electrode of described metal-oxide-semiconductor QSS3 is just connecting sustained diode SS2
Pole, 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 at the two ends of described sustained diode SS2, described Micro Controller Unit (MCU) driving
The three-phase output end mouth of motor-drive circuit low by switching relay A and relay B and motor respectively
Speed shelves, mid ranger or top gear winding connect, motor Hall element by hall signal modulate circuit with
Single-chip microcomputer connects, and the outfan of described relay signal switching modulate circuit connects switching relay A and continues
The control end of electrical equipment B.
Described first drive circuit is provided with fault-tolerant enable signal conditioning circuit, and described fault-tolerant enable signal is adjusted
Reason circuit includes audion QSS5, resistance RSS6 and resistance RSS5, the current collection of described audion QSS2
The colelctor electrode of pole connecting triode QSS5, the emitter stage connecting triode QSS5 of described audion QSS2
Emitter stage, the base stage of described audion QSS5 pass through pull down resistor RSS6 ground connection, described audion QSS5
Base stage by resistance RSS5 is connected with single-chip microcomputer introduce enable signal JDQ_L_EN.
Controller operation principle:
1, relay signal switching modulate circuit principle: resistance RSS1, RSS3 are current-limiting resistance, pass through
RSS1, RSS3 limit single-chip microcomputer I/O port and drive the driving electric current of audion QSS2, QSS4, resistance
RSS2, RSS4 are pull down resistor, when single-chip microcomputer electrification reset port is in high-impedance state, by RSS2,
QSS2, QSS4 base stage is dragged down and makes QSS2, QSS4 turn off by RSS4, and QSS1, QSS3 control relay
Conducting close, when the grid of QSS1, QSS3 is 12V, i.e. audion QSS, 2, QSS4 close time,
QSS1, QSS3 turn on, and relay A, B coil adhesive, when the grid of QSS1, QSS3 is 0V, i.e.
Audion QSS, 2, QSS4 conducting time, relay A, B releasing winding.Because relay is perception device
Part, can produce bigger backward voltage when the moment turned off, and diode DSS1, DSS2 close at relay
Close moment and play afterflow effect, backward voltage that relay inductance produce is reduced or eliminated, play protection and drive
Circuit and the effect of relay.
2, three speed switching principle: when vehicle is energized and remains static, controller low speed winding control
Molding block works: relay A coil adhesive, relay B releasing winding, now relay A coil
Normally opened contact turns on controller three-phase A, B, C, and motor low speed winding works, and drives car with low or first gear
?；Motor speed constantly rises, when controller detects that motor speed is more than 10KM and electric current less than 18A
Time, controller middling speed winding control module works: relay A releasing winding, relay B releasing winding,
Now the normally-closed contact of relay B turns on controller three-phase A, B, C, and motor middling speed winding works,
Vehicle is driven with mid ranger；Motor speed the most constantly rises, when controller detects that motor speed is more than
When 18KM and electric current are less than 15A, relay A releasing winding, relay B coil adhesive, controller is high
Speed winding control module work: now the normally opened contact of relay B turns on controller three-phase A, B, C,
Motor high speed winding works, and drives vehicle with top gear；
Otherwise, when vehicle runs with top gear, and controller detects when motor speed is less than 16KM, control
Device middling speed winding control module processed works: relay A releasing winding, relay B releasing winding, now
The normally-closed contact of relay B and controller three-phase A, B, C turn on, and motor middling speed winding works, with in
Speed shelves drive vehicle；When controller detects that motor speed is less than 8KM, controller low speed winding module
Work: relay A coil adhesive, relay B releasing winding, now the normally opened of relay A coil touches
Point turns on controller three-phase A, B, C, and motor low speed winding works, and drives vehicle to carry with low or first gear
Torque per liter.
Three gear intelligent electronic controllers control motor winding switching effect: due to three gear smart electronics controls
Device processed is by controlling 2 group relaies switch motor three-phase windings respectively, turning between three gears of controller
Speed difference is less, so conversion effect is more steady, comfortable；Electricity is switched respectively by controlling 2 group relaies
Machine three-phase windings, highlights multiformity and the motility of switching mode, when adding low speed starting and climbing
Moment of torsion, improve the control performance of controller；Also improve the efficiency of motor simultaneously；With folk art term position intelligence
Can compare by electronic controller, add a gear and be just the increase in an efficient point, therefore three gear intelligence
The control performance of energy electronic controller is more preferably, it is possible to fully the operation of digging motor is efficiently and output moment of torsion is big
Superperformance.
In order to ensure 2 group relaies in time, accurately switch, this intelligent electronic controller devises electronics and changes
Gear circuit, as shown in Figure 1.
After low speed winding drive circuit fault in controller, controller is positioned at double gear switch fault-tolerant operation
Pattern, fault-tolerant Enable Pin JDQ_L_EN is put 1, the most no matter is controlled the letter of low speed winding drive circuit break-make
How number JDQ_L changes, and metal-oxide-semiconductor QSS1 closes, the coil blackout of relay A, and fault winding drives
Galvanic electricity road disconnects all the time.Thus it is ensured that access all the time during controller operation is that middling speed winding drives electricity
Road and high speed winding drive circuit, improve reliability and the service life of controller.
Above embodiments of the invention are described in detail, but described content has been only the preferable of the present invention
Embodiment, it is impossible to be considered the practical range for limiting the present invention.All according to the scope of the invention made equal
Deng change and improvement etc., within all should still belonging to this patent covering scope.
Claims (6)
1. speed electric motor car, it is characterised in that: include that three-speed motor, three speed controllers and third gear continue
Electrical equipment；
Described three-speed motor includes that rotor and stator, described stator include motor shaft, iron core and winding, institute
Stating winding to be around on described iron core, described iron core is fixed on described motor shaft；Described winding includes low speed
Winding, middling speed winding and high speed winding；Described low speed winding includes coil U1, V1, W1, low with motor
The terminal of speed shelves outlet is respectively connected with；Described middling speed winding is by low speed winding coil U1, V1, W1
Head end extends out to 3/5 position of low speed winding coil overall length respectively, draws U2, V2, W2 respectively,
It is connected with the terminal of motor mid ranger outlet；Described high speed winding is by low speed winding coil U1, V1, W1
Head end extend out to 1/2 position of low speed winding coil overall length respectively, draw respectively U3, V3,
W3, is connected with the terminal of motor top gear outlet；The tail end of described coil U1, the tail end of coil V1
Contact with the tail end of coil W1；
Described third gear relay includes shell and pedestal, described shell and the closing space of described pedestal composition
Inside being provided with two independent relay units, first relay unit is furnished with common port plug, another
Relay unit is unworthy of common port plug, the normally-closed contact of previous relay unit and another relay list
The movable contact of unit connects；
Described three speed controllers include single-chip microcomputer and relay signal switching modulate circuit, described relay
Signal switching modulate circuit include the first drive circuit and the second drive circuit, described first drive circuit by
Oneth I/O port JDQ_L of single-chip microcomputer drives the coil on or off controlling relay A, and described the
Two drive circuits by single-chip microcomputer the 2nd I/O port JDQ_H drive control relay B coil conducting or
Turning off, described first drive circuit includes audion QSS2 and metal-oxide-semiconductor QSS1, described audion QSS2
Base stage be connected with single-chip microcomputer the oneth I/O port JDQ_L by resistance RSS1, described audion QSS2
Base stage by pull down resistor RSS2 ground connection, the grounded emitter of audion QSS2, described audion QSS2
Colelctor electrode connect 12v power supply by a resistance RSS7, be simultaneously connected with the grid of metal-oxide-semiconductor QSS1, described
The drain electrode of metal-oxide-semiconductor QSS1 connects the positive pole of sustained diode SS1, and the source electrode of described metal-oxide-semiconductor QSS1 connects
Ground, the negative pole of described sustained diode SS1 connects car load power supply, and the coils from parallel connection of coils of described relay A exists
The two ends of described sustained diode SS1；Described second drive circuit includes audion QSS4 and metal-oxide-semiconductor
QSS3, the base stage of described audion QSS4 is by resistance RSS3 and single-chip microcomputer the 2nd I/O port JDQ_H
Connecting, the base stage of described audion QSS4 passes through pull down resistor RSS4 ground connection, and audion QSS4 sends out
Emitter grounding, the colelctor electrode of described audion QSS4 connects 12v power supply by a resistance RSS8, connects simultaneously
Connecing the grid of metal-oxide-semiconductor QSS3, the drain electrode of described metal-oxide-semiconductor QSS3 is just connecting sustained diode SS2
Pole, 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 at the two ends of described sustained diode SS2, described Micro Controller Unit (MCU) driving
The three-phase output end mouth of motor-drive circuit low by switching relay A and relay B and motor respectively
Speed shelves, mid ranger or top gear winding connect, motor Hall element by hall signal modulate circuit with
Single-chip microcomputer connects, and the outfan of described relay signal switching modulate circuit connects switching relay A and continues
The control end of electrical equipment B.
Three speed electric motor cars the most according to claim 1, it is characterised in that: described first drive circuit
Being provided with fault-tolerant enable signal conditioning circuit, described fault-tolerant enable signal conditioning circuit includes audion
QSS5, resistance RSS6 and resistance RSS5, the colelctor electrode connecting triode QSS5 of described audion QSS2
Colelctor electrode, the emitter stage of the emitter stage connecting triode QSS5 of described audion QSS2, described three poles
The base stage of pipe QSS5 passes through pull down resistor RSS6 ground connection, and the base stage of described audion QSS5 passes through resistance
RSS5 is connected introducing and enables signal JDQ_L_EN with single-chip microcomputer.
Three speed electric motor cars the most according to claim 1, it is characterised in that: described motor shaft is empty
Mandrel, the lead-out wire terminal of described coil all stretches out the one or both ends of hollow axle and draws with corresponding motor
Line terminals connects.
Three speed electric motor cars the most according to claim 1, it is characterised in that: described previous relay
The normally-closed contact of unit is that outside shell side is to the L-shaped extended.
Three speed electric motor cars the most according to claim 4, it is characterised in that: described previous relay
The normally-closed contact of unit is connected by the movable contact that connecting line is corresponding with a rear relay unit respectively.
6. according to three speed electric motor cars described in any one of claim 1-5, it is characterised in that: outside described
On junction between shell and pedestal and pedestal, the exit root of each plug all scribbles high density marine glue.
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| CN201510032744.6A CN104527453B (en) | 2015-01-22 | 2015-01-22 | Three speed electric motor cars |
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| CN201510032744.6A CN104527453B (en) | 2015-01-22 | 2015-01-22 | Three speed electric motor cars |
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| EP1792770A2 (en) * | 2005-11-30 | 2007-06-06 | Hitachi, Ltd. | Motor driving device and automobile using the same |
| CN203057064U (en) * | 2012-12-28 | 2013-07-10 | 胡风华 | Automatic shifting apparatus for electric vehicle |
| CN103192735A (en) * | 2013-03-16 | 2013-07-10 | 鲍文光 | Communication type controller based on electric vehicle |
| CN103538682A (en) * | 2013-08-13 | 2014-01-29 | 天津雅迪实业有限公司 | Electric vehicle control system capable of achieving stable switching of high speed and low speed |
| 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 |
| CN204452102U (en) * | 2015-01-22 | 2015-07-08 | 天津小刀电动科技股份有限公司 | Three fast battery-driven cars |
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2015
- 2015-01-22 CN CN201510032744.6A patent/CN104527453B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1792770A2 (en) * | 2005-11-30 | 2007-06-06 | Hitachi, Ltd. | Motor driving device and automobile using the same |
| CN203057064U (en) * | 2012-12-28 | 2013-07-10 | 胡风华 | Automatic shifting apparatus for electric vehicle |
| CN103192735A (en) * | 2013-03-16 | 2013-07-10 | 鲍文光 | Communication type controller based on electric vehicle |
| CN103538682A (en) * | 2013-08-13 | 2014-01-29 | 天津雅迪实业有限公司 | Electric vehicle control system capable of achieving stable switching of high speed and low speed |
| 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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| CN104527453A (en) | 2015-04-22 |
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