CN108394315A - Intelligent electric motor car - Google Patents
Intelligent electric motor car Download PDFInfo
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- CN108394315A CN108394315A CN201810282375.XA CN201810282375A CN108394315A CN 108394315 A CN108394315 A CN 108394315A CN 201810282375 A CN201810282375 A CN 201810282375A CN 108394315 A CN108394315 A CN 108394315A
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- 238000004804 winding Methods 0.000 claims abstract description 94
- 238000003860 storage Methods 0.000 claims abstract description 48
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000005611 electricity Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 230000002459 sustained effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0856—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load characterised by the protection measure taken
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by applying dc to the motor
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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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of intelligent electric motor cars, including main body, are equipped with several rechargeable battery packs；The drive motor includes stator winding and rotor, the control circuit includes driving circuit and braking circuit, the control circuit includes driving condition and braking state, and the intelligent electric motor car further includes that the driving circuit includes the circuit that stator winding and rotor are formed；The braking circuit includes the circuit that stator winding, brake switch and power storage element are formed, and the power storage element is used to provide electric energy for the braking circuit；Under braking state, if detecting, the braking parameters of the braking circuit are more than predetermined threshold, driving circuit stator winding and rotor conducting connection, can be controlled braking circuit, with the security risk for preventing emergency brake from bringing when the electric current that brakes is larger.
Description
Technical field
The present invention relates to intelligent electric motor car field more particularly to a kind of intelligent electric motor cars.
Background technology
In intelligent electric motor car field, drive motor is for driving driven member, as wheel is run.When intelligent electric motor car is just
Often when running, power supply and the drive motor of intelligent electric motor car form the current supply circuit being closed, to drive vehicle to run.But intelligence electricity
There is short circuit phenomenon sometimes in brake in motor-car, short-circuit such as before brake, and software not detected；In other words, in brake process
Middle short circuit, the electric current that brakes at this time is very big, emergency brake occurs, and electric vehicle itself is because effect of inertia cannot stop immediately, driver
It surprisingly moves forward, is easy to damage driver.
Invention content
To achieve the goals above, the present invention adopts the following technical scheme that：
As one embodiment of the present invention, a kind of intelligent electric motor car includes main body, is equipped with several rechargeable battery packs；Drive horse
It reaches, including stator winding and rotor；Control circuit, including driving condition and braking state, wherein the control circuit further includes
Main switch, when the main switch is closed, the control circuit enters driving condition；When the main switch disconnects, the control
Circuit processed enters braking state, and the intelligent electric motor car further includes：Driving circuit, including the stator winding, rotor and driving
Switch the circuit formed, the driving switch is connected electrically between the stator winding and rotor, for control the stator around
The on or off connected between group and rotor；Braking circuit, including stator winding, power storage element and brake switch are formed
Circuit, wherein the power storage element is arranged between the both ends of the rotor, for providing electricity for the braking circuit
Energy；Control unit is electrically connected the main switch, driving switch and brake switch, control the main switch, driving switch and
Brake switch closes or opens；Wherein, under braking state, if detecting, the braking parameters of the braking circuit are more than predetermined
Threshold value, then driving circuit stator winding and rotor conducting connection.
Further, it is in series with diode between the power storage element and the rotor, so that power storage element
Carry out unidirectional charge and discharge.
Further, current detecting unit is additionally provided on the braking circuit, the current detecting unit is for stopping
Detect whether the brake electric current on the braking circuit is more than pre-determined threshold under car state, if so, the control circuit controls
The brake switch is in the open state, for cutting off the conducting between the power storage element and stator winding.
Further, under braking state, if the brake electric current on the braking circuit is more than pre-determined threshold, the control
Circuit control driving switch processed is closed, and makes the current lead-through between the stator winding and rotor.
Further, the braking circuit further includes first brake control switch and the second brake control switch；From described
To its other end, the braking circuit includes that the first brake control being sequentially connected in series switchs, is described for one end of stator winding
Power storage element, the brake switch and second brake control switch.
As another embodiment of the present invention, a kind of intelligent electric motor car includes main body, is equipped with several rechargeable battery packs；
The drive motor includes stator winding and rotor, and the control circuit includes driving circuit and braking circuit, the control electricity
Road includes driving condition and braking state, and the intelligent electric motor car further includes that the driving circuit includes stator winding and rotor shape
At circuit；The braking circuit includes the circuit that stator winding, brake switch and power storage element are formed, and the electric energy is deposited
Storage element is used to provide electric energy for the braking circuit；Under braking state, if detecting the braking parameters of the braking circuit
More than predetermined threshold, then driving circuit stator winding and rotor conducting connection.
Further, under braking state, driving circuit stator winding and rotor disconnect, and detect that braking circuit is short
Road cuts off braking circuit so that driving circuit stator winding and rotor conducting connection.
Further, it is provided with driving switch between the stator winding and rotor, under braking state, if the brake
Short trouble occurs for switch, and the driving switch closure is connected so that the stator winding is connected with rotor.
Further, it under driving condition and braking state, is led between the stator winding and rotor of the drive motor
Lead to and connects.
Further, it is additionally provided at least one brake control switch on the braking circuit, if the brake switch is sent out
Raw short trouble, then open at least one of described brake control switch to cut off the braking circuit.
The invention has the beneficial effects that intelligent electric motor car of the invention on the one hand can be after driving condition exits, profit
The rotor in brake process is promoted to stop operating as early as possible with driving circuit, avoiding intelligent electric motor car emergency brake from bringing driver need not
The injury wanted；On the other hand, can control effectively to the brake electric current in braking circuit under braking state, avoid because
Brake electric current is excessive and causes stator winding to burn out or even occur emergency brake and unnecessary personnel is brought to injure.
Description of the drawings
Fig. 1 is the intelligent electric motor car schematic diagram as one of the embodiment of the present invention；
Fig. 2 is the first circuit diagram suitable for drive motor；
Fig. 3 is the driving current path schematic diagram of control circuit at any driving condition in Fig. 2 suitable for drive motor；
Fig. 4 is the charging current path schematic diagram of control circuit at any driving condition in Fig. 2 suitable for drive motor；
Fig. 5 is brake current path schematic diagram of the control circuit under braking state in Fig. 2 suitable for drive motor；
Fig. 6 is charging current path schematic diagram of the control circuit under braking state in Fig. 2 suitable for drive motor；
Fig. 7 is second of circuit diagram of the control circuit suitable for drive motor；
Fig. 8 is the third circuit diagram of the control circuit suitable for drive motor；
Fig. 9 is the 4th kind of circuit diagram of the control circuit suitable for drive motor；
Figure 10 is the 5th kind of circuit diagram of the control circuit suitable for drive motor.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
Intelligent electric motor car shown in FIG. 1, including：Main body is equipped with several rechargeable battery packs（It is not shown）, power supply is provided；
Drive motor and its control circuit are provided in main body, drive motor drives wheel to run in the case where powering on.
Intelligent electric motor car is equipped with starting switch（It is not shown）, when driver triggers starting switch, the control of drive motor
Supply path between circuit turn-on drive motor and power supply.When starting switch is released by a user, the control circuit of motor is cut
Disconnected supply path between drive motor and power supply.
Associated connection has wheel, drive motor internal rotor rotation driving output shaft to rotate on the output shaft of drive motor, into
And it is run with motor car wheel.The plan content of the present invention is illustrated below in conjunction with Fig. 2 to Figure 10.
Make a kind of embodiment to achieve the above object, in Fig. 2 the control circuit of drive motor include main switch 151,
Driving circuit, braking circuit and control unit 180；The control circuit includes driving condition and braking state, when main switch 151 closes
When conjunction, control circuit is driving condition, and when main switch 151 disconnects, control circuit is braking state.Control unit 180 detects
It is triggered to the starting switch being arranged on intelligent electric motor car, then closure main switch 151, control circuit is in driving condition, control
Unit 180 processed detects that starting switch is released, then opens main switch 151, and control circuit is in braking state.
On the supply path that main switch 151 is arranged between driving circuit and power supply, when main switch 151 is closed, control electricity
Road enters driving condition, and when main switch 151 is opened, control circuit enters braking state.The first end and power cord of main switch 151
First power end 131 of cable 130 is electrically connected, and the first end of second end and driving circuit is electrically connected, and the of power cable 130
The second end of two power ends 132 and driving circuit is electrically connected, and main switch 151 is configured as establishing and cutting off driving circuit and electricity
The electrical electric connection of source cable 130.When main switch 151 is connected, first end and second end is connected, driving circuit and power cord
Electric connection between cable 130 is established；When main switch 151 disconnects, first end is disconnected with second end, driving circuit and power cord
Electric connection cut-out between cable 130.
Series excitation drive motor, series excitation drive motor, shunt excitation drive motor, synchronous driving horse may be used in above-mentioned drive motor
It reaches or asynchronous drive motor etc., present embodiment is by taking series excitation drive motor or series excitation drive motor as an example, including stator winding 122
With rotor 121, above-mentioned driving circuit includes the circuit that stator winding 122, driving switch 152 and the series connection of rotor 121 are formed；It is above-mentioned
Braking circuit includes the circuit that stator winding 122, brake control switch group and the series connection of power storage element 170 are formed.
Specifically, as shown in Fig. 2, driving switch 152, which is serially connected between stator winding 122 and rotor 121, forms driving electricity
Road, the first end of stator winding 122 are electrically connected as the first end of driving circuit and the second end of main switch 151, stator around
The second end of group 122 is electrically connected with the first end of driving switch 152, the second end of driving switch 152 and the first of rotor 121
End is electrically connected, and the second end of rotor 121 is as the second end of driving circuit and 132 electricity of second source end of power cable 130
Property connection.At any driving condition, driving switch 152 is closed, and is connected between stator winding 122 and rotor 121, is flowed through stator winding
122 electric current makes stator winding 122 generate the magnetic field that driving rotor 121 rotates, and the rotation of rotor 121 drives output shaft rotation,
And then the polishing pad 110 for being connected to output shaft one end is driven to work.Wherein, driving switch 152 is one kind in power device, such as
Metal-oxide-semiconductor, silicon-controlled etc..
Brake control switch group includes first brake control switch 161 and the second brake control switch 162, first brake control
The first end for making switch 161 and the first end of stator winding 122 are electrically connected, second end and the first of power storage element 170
End is electrically connected, the second end ground connection of power storage element 170；The first end and stator winding of second brake control switch 162
122 second end is electrically connected, between the second end and the second end of power storage element 170 of the second brake control switch 162
It is electrically connected, brake control switch group, power storage element 170, stator winding 122 form brake electricity by above-mentioned connection type
Road.One kind in relay, field-effect tube or thyristor may be used in first brake control switch 161, and the second brake control is opened
One kind in relay, field-effect tube or thyristor may be used in pass 162.
Power storage element 170 is the energy source of braking circuit, in order to enable the brake current direction of braking circuit is steady
Fixed, power storage element 170 is connected in parallel on the both ends of rotor 121 using with polar capacitance.Because power storage element 170 uses
With polar capacitance, can only one direction charging, electric discharge, when drive motor 120 runs well in the mains supply, will produce direction
Periodically variable induced electromotive force, therefore concatenated between the first end of rotor 121 and the first end of power storage element 170
There is diode D3, is electrically connected between the cathode and the first end of power storage element 170 of diode D3, the anode of diode D3
It is electrically connected with the first end of rotor 121 to form charging circuit；The addition of diode D3 can ensure the induction electric of variation
Gesture can only give capacitor charging in one direction, avoid negative direction charging damage capacitance.The both ends of power storage element 170 are also in parallel
Bleeder resistance R, power storage element 170 and bleeder resistance R constitute discharge loop to realize the slow electric discharge to capacitance.
Refering to what is shown in Fig. 3, being described further to the above-mentioned operation principle for introducing circuit, when setting is on intelligent electric motor car
Starting switch when being triggered, control unit 180 detects that starting switch is switched to closed state by opening state, and control master opens
151 and the closure of driving switch 152 are closed, it is that drive motor 120 is powered that power cable 130, which accesses driving circuit,.Assuming that the first power supply
End 131 is high-pressure side, and second source end 132 is low-pressure end, then forms current path as shown at 301 in fig. 3, and electric current is passed through from power supply
First power end 131 flows through main switch 151, into driving circuit, followed by stator winding 122, driving switch 152, rotor
121, then power supply is returned to by second source end 132, to drive drive motor 120 to work.
Refering to what is shown in Fig. 4, while driving circuit is connected, the charging circuit current path as shown in 401, electric current are formed
It is flowed into through the first power end 131, successively after main switch 151, stator winding 122, driving switch 152, electric energy storage element 170
Second source end 132 is returned to, charging circuit is constituted and charges for power storage element 170.
Refering to what is shown in Fig. 5, when the starting switch being arranged on intelligent electric motor car is in an open state by closed state switching,
In response, control unit 180 controls main switch 151 and driving switch 152 is in opening state, controls brake control switch
First brake control switch 161 and the second brake control switch 162 in group are in closed state.At this point, driving circuit with
Power supply, which disconnects, to be electrically connected, and can not be continued as rotor 121 and be provided driving force；Electricity of the power storage element 170 as braking circuit
Energy source starts to play a role, and brake current path as illustrated in 501, first end of the electric current through power storage element 170 is successively
First brake control switch 161, stator winding 122, the second brake control switch 162 are flowed through, is returned again to power storage element
170 second end.Stator winding 122 acts on rotor 121 because of the current induced magnetic field that brakes.At the same time, refering to what is shown in Fig. 6,
As power storage element 170 discharges, the movement in the magnetic field that brake electric current generates of rotor 121 will produce electromotive force, when its production
Raw electromotive force is higher than the electromotive force of power storage element 170, then can charge to power storage element 170, rotor 121
Energy is further consumed；The current path as shown in 601 in figure, first end of the electric current through rotor 121 followed by diode D3,
Rotor 121 is returned after power storage element 170, when flowing through electric current in rotor 121, is braked produced by electric current in stator winding 122
Magnetic field just can apply brake weight to it, to quickly reduce rotor 121 rotating speed.
To avoid, because brake electric current is too big, and stator winding 122 being punctured or being burnt out, as an improvement embodiment party
Formula can be opened with the second brake control in 122 both ends parallel connection sustained diode 1 of stator winding, D2, the anode of diode D1, D2
162 second end electric connection is closed, sustained diode 1, the cathode of D2 are electric with the second end of first brake control switch 161
Property connection, by sustained diode 1, D2 and stator winding 122 formed continuous current circuit, make the electric energy of stator winding 122 in circuit
In consumed in a manner of afterflow, to being played a certain protective role from stator winding 122.
As the above analysis, control circuit generated brake electric current under braking state is bigger, if persistently led
If logical braking circuit, stator winding 122 is easily damaged, therefore can be with as shown in fig. 7, in addition to identical with above-mentioned control circuit
Component and its connection relation, the control circuit in the embodiment further includes brake switch 163, i.e., increases in braking circuit
Brake switch 163, the first end of brake switch 163 are electrically connected the second end of the second brake control switch 162, and second end is electrical
Connect the second end of power storage element 170；Brake switch 163 and control unit 180 are electrically connected, and control unit 180 can be with
According to the break-make of the size control brake switch 163 of brake electric current to be connected or cut off the brake current loop of braking circuit,
To control the size of brake electric current.Specifically, control unit 180 can send pulse signal to control to brake switch 163
It is periodically closed or closes, such as pwm signal, to realize the Duty ratio control to the electric current that brakes.Specifically, brake switch
163 using one kind in field-effect transistor, such as IGBT.
In view of foregoing description, under braking state, brake switch 163 plays the brake current control in braking circuit
Therefore key effect occurs once the pulse signal that short circuit either control unit 180 is exported to it occurs for brake switch 163
It is abnormal（Such as always export high level）So that braking circuit is constantly in conducting state in braking state, so as to cause brake
Vehicle electric current is excessive, emergency brake situation occurs, by angle mill 100 for, it is most likely that cause mill 110 fly out come, harm users and its
He is personnel.
For brake switch 163, it may be that short trouble just occurs before control circuit enters braking state, also have
May be that short trouble occurs in braking state, the voltage at both ends can also occur because of status difference different amplitudes or
Person's amplitude section.When control circuit is in driving condition, braking circuit is not turned on, if short circuit occurs at brake switch 163,
Since the second end of brake switch 163 is grounded, then the voltage at its first end, which is grounded end and drags down, levels off to 0, and it is normal
In the case of, may be+5V（Transistor collector voltage）.According to above-mentioned analysis, can control circuit enter braking state it
It is preceding that brake switch 163 is detected, if brake switch 163 has occurred and that short circuit, control circuit are opened in starting switch
Afterwards, it is no longer turned on braking circuit.
If short trouble either control unit 180 occurs when control circuit is in braking state for brake switch 163
The pulse signal mistake of transmission, such as control unit 180 export always high level, are easy to cause brake electric current and become larger, with
Brake electric current becomes larger, can be by the way that detection of the current detecting unit for electric current on braking circuit is arranged, to realize to brake electricity
The control on road；When brake electric current becomes larger, the voltage at the second end of brake switch 163 is consequently increased, so can also be accordingly
The judgement of brake electric current is carried out to set voltage threshold, to further being controlled braking circuit.
In some embodiments of the invention, under drive motor braking state, driving circuit stator winding and rotor sheet
Body disconnects；If certain time period detects braking circuit short circuit, or works as the brake detected in braking state or brake process
Vehicle parameter is more than predetermined threshold, or when detecting that the brake weight that braking circuit generates is more than predetermined threshold, cuts off braking circuit,
The connection of on-state drive circuit stator winding and rotor, driving force caused by driving circuit can offset braking circuit generation
Brake weight, at this time because braking circuit has been turned off, the brake weight that braking circuit generates is zero.
In other embodiments of the present invention, under drive motor braking state, driving circuit stator winding and rotor
Conducting connection itself；If certain time period detects braking circuit short circuit, or works as and detect in braking state or brake process
Braking parameters are more than predetermined threshold, or when detecting that the brake weight that braking circuit generates is more than predetermined threshold, can not be cut off
Braking circuit can offset braking circuit using driving force caused by driving circuit stator winding and rotor itself conducting connection
The brake weight of generation.
To sum up, the present invention provides a kind of control circuit suitable for drive motor, the drive motor includes stator
Winding and rotor, the control circuit include driving circuit and braking circuit, and the control circuit includes driving condition and brake
State；Under braking state, if detecting, the braking parameters of the braking circuit are more than predetermined threshold, and driving circuit is connected,
The driving force generated by driving circuit conducting is used to resist or offset the brake weight of braking circuit generation.It should be noted that
Here driving circuit is connected, and can be that driving circuit is continuously turned on, can also be partially ON.In one embodiment of the present of invention
In, by adjusting the mode of duty ratio, the partially ON of driving circuit may be implemented.
Further, the driving circuit includes the circuit that stator winding and rotor are formed, when detect braking state or
When the braking parameters of brake process are more than predetermined threshold more than the brake weight that predetermined threshold or braking circuit generate, driving circuit
Stator winding and rotor conducting connection, driving circuit stator winding and rotor conducting connection caused by driving force for resist or
Offset the brake weight that braking circuit generates.
It is illustrated below by way of Fig. 8-Fig. 9.
As shown in figure 8, the control circuit is with the most important differences of Fig. 7, include only brake switch 163 in braking circuit,
The control for the on or off to brake switch 163 introduced in the respective embodiments described above and short trouble detection mode are equal
Suitable for present embodiment.Control circuit includes：Driving circuit and braking circuit, driving circuit include stator winding 122, driving
The circuit that switch 152 and the series connection of rotor 121 are formed, driving circuit be connected with power supply at any driving condition, under braking state and
Dump；Braking circuit includes the circuit that stator winding 122, brake switch 163 and the series connection of power storage element 170 are formed,
Power storage element 170 is used to provide electric energy for the braking circuit, and power storage element 170 is connected to rotor by diode D3
Between 121 both ends.At any driving condition, the connection of stator winding 121 and rotor 121 is connected in driving switch 150 so that stator
Winding 122 generate driving rotor 121 rotate First Driving Force, under normal braking state, driving switch 150 disconnect stator around
The connection of group 122 and rotor 121, braking circuit conducting, stator winding 122 are that rotor 121 provides the brake weight for preventing it from rotating；
If short trouble occurs for brake switch 163, driving switch 150 is closed to be connected so that stator winding 122 and rotor 121 is connected, and is made
It obtains stator winding 122 and generates the second driving force that driving rotor 121 rotates again, generated on its produced braking circuit with offsetting
Brake weight a part.In other words, under braking state, driving circuit stator winding and rotor itself disconnect, if certain
One period detected braking circuit short circuit, can not cut off braking circuit, the company of on-state drive circuit stator winding and rotor
It connects, driving force caused by driving circuit can offset the brake weight of braking circuit generation.It is introduced in the respective embodiments described above
The function of remaining component is equally applicable to present embodiment in control circuit, repeats no more.
It is of course also possible to allow control circuit in braking state and driving condition, allow always at stator winding and rotor
In conducting state, that is, as shown in figure 9, remove the driving switch 150 in driving circuit, equally, in the respective embodiments described above
The control of the on or off to brake switch 163 of middle introduction and short trouble detection mode are suitable for this embodiment party
Formula, the function of remaining component is equally applicable to present embodiment in the control circuit introduced in the respective embodiments described above.Control
Circuit includes：Driving circuit and braking circuit, driving circuit include stator winding 122 and the circuit that the series connection of rotor 121 is formed, and are driven
Dynamic circuit is connected with power supply at any driving condition, under braking state with dump；Braking circuit include stator winding 122,
The circuit that brake switch 163 and the series connection of power storage element 170 are formed, power storage element 170 are used to carry for the braking circuit
For electric energy, power storage element 170 is connected to by diode D3 between the both ends of rotor 121.At any driving condition, stator around
Group 122 generates the First Driving Force that driving rotor 121 rotates, under normal braking state, braking circuit conducting, and stator winding
122 generate the brake weight for preventing rotor 121 from rotating, meanwhile, stator winding 122 generates the second driving that driving rotor 121 rotates
Power, to resist or offset a part for brake weight.In other words, under braking state, driving circuit stator winding and rotor itself
Conducting connection can not cut off braking circuit if certain time period detects braking circuit short circuit, driving circuit stator winding and
Driving force caused by rotor conducting connection itself can offset the brake weight of braking circuit generation.The respective embodiments described above intermediary
The function of remaining component is equally applicable to present embodiment in the control circuit to continue, repeats no more.
It should be noted that the above embodiment of the present invention, generated using driving circuit in braking state or brake process
Driving force, for resist or offset braking circuit generation brake weight.In some other embodiment of the present invention, it can also adopt
A positive force is generated using independent anti-brake circuits or circuit in braking state or brake process, for resisting or supporting
The brake opposite force that the braking circuit that disappears generates.
As shown in Figure 10, the most important difference of the control circuit and Fig. 7 is, on the basis of Fig. 8, in braking circuit only
Increase the second brake control switch 162, equally, introduce in the respective embodiments described above to the conducting of brake switch 163 or
The control of cut-out and short trouble detection mode are suitable for present embodiment, the control electricity introduced in the respective embodiments described above
The function of remaining component is equally applicable to present embodiment in road.Control circuit includes：Driving circuit and braking circuit, driving
Circuit include stator winding 122, driving switch 150 and rotor 121 series connection formed circuit, driving circuit at any driving condition with
Power supply be connected, under braking state with dump；Braking circuit include stator winding 122, the second brake control switch 162,
The circuit that brake switch 163 and the series connection of power storage element 170 are formed, power storage element 170 are used to carry for the braking circuit
For electric energy, power storage element 170 is connected to by diode D3 between the both ends of rotor 121.At any driving condition, driving is opened
Close the connection of 150 conducting stator winding 121 and rotor 121 so that stator winding 122 generates the driving that driving rotor 121 rotates
Power, under normal braking state, driving switch 150 disconnects the connection of stator winding 122 and rotor 121, the second brake switch 162
It being both turned on brake switch 163, braking circuit conducting, stator winding 122 is that rotor 121 provides the brake weight for preventing it from rotating,
If short trouble occurs for brake switch 163, brake control switch 162 is opened to cut off the conducting of braking circuit, is avoided because stopping
Injury caused by vehicle electric current is excessive.In other words, under drive motor braking state, driving circuit stator winding and rotor itself
It disconnects, if certain time period detects braking circuit short circuit, cuts off braking circuit.It is of course also possible in braking circuit
Only increase first brake and control switch 161, the control mode of first brake switch 161 is the same as the second brake control switch 162.When
So, the second brake control switch 162 can also be opened when short trouble occurs for brake switch 163, close driving switch 150,
In other words, under drive motor braking state, driving circuit stator winding and rotor itself disconnect, if certain time period is examined
Braking circuit short circuit is measured, braking circuit, the connection of on-state drive circuit stator winding and rotor are cut off.The respective embodiments described above
The function of remaining component is equally applicable to present embodiment in the control circuit of middle introduction, repeats no more.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of intelligent electric motor car, including main body are equipped with several rechargeable battery packs；Drive motor, packet
Include stator winding and rotor；Control circuit, including driving condition and braking state, wherein the control circuit further includes
Main switch, when the main switch is closed, the control circuit enters driving condition；When the main switch disconnects, the control
Circuit processed enters braking state, which is characterized in that the intelligent electric motor car further includes：
Driving circuit, includes the circuit of the stator winding, rotor and driving switch formation, and the driving switch is connected electrically in institute
It states between stator winding and rotor, for controlling the on or off connected between the stator winding and rotor；
Braking circuit includes the circuit of stator winding, power storage element and brake switch formation, wherein the power storage
Element is arranged between the both ends of the rotor, for providing electric energy for the braking circuit；
Control unit is electrically connected the main switch, driving switch and brake switch, controls the main switch, driving switch
With closing or opening for brake switch；
Wherein, under braking state, if detecting, the braking parameters of the braking circuit are more than predetermined threshold, and driving circuit is fixed
Sub- winding and rotor conducting connection.
2. intelligent electric motor car according to claim 1, which is characterized in that between the power storage element and the rotor
It is in series with diode, so that power storage element carries out unidirectional charge and discharge.
3. intelligent electric motor car according to claim 1, which is characterized in that be additionally provided with current detecting on the braking circuit
Unit, the current detecting unit are used to detect whether the brake electric current on the braking circuit is more than default under braking state
Thresholding, if so, the control circuit control brake switch is in the open state, for cutting off the power storage element
Conducting between stator winding.
4. intelligent electric motor car according to claim 1, which is characterized in that under braking state, if on the braking circuit
Brake electric current be more than pre-determined threshold, then control circuit control driving switch is closed, make the stator winding and rotor it
Between current lead-through.
5. intelligent electric motor car according to claim 1, which is characterized in that the braking circuit further includes first brake control
Switch and the second brake control switch；From one end of the stator winding to its other end, the braking circuit includes going here and there successively
The first brake of connection controls switch, the power storage element, the brake switch and second brake control switch.
6. a kind of intelligent electric motor car, including：Main body is equipped with several rechargeable battery packs；The drive motor
Including stator winding and rotor, the control circuit includes driving circuit and braking circuit, and the control circuit includes driving
Dynamic state and braking state, which is characterized in that the intelligent electric motor car further includes：
The driving circuit includes the circuit that stator winding and rotor are formed；
The braking circuit includes the circuit that stator winding, brake switch and power storage element are formed, the power storage member
Part is used to provide electric energy for the braking circuit；
Under braking state, if detect the braking circuit braking parameters be more than predetermined threshold, driving circuit stator around
Group and rotor conducting connection.
7. intelligent electric motor car according to claim 6, which is characterized in that under braking state, driving circuit stator winding
It is disconnected with rotor, detects braking circuit short circuit, cut off braking circuit so that driving circuit stator winding and rotor conducting
Connection.
8. intelligent electric motor car according to claim 6, which is characterized in that be provided with drive between the stator winding and rotor
Dynamic switch, under braking state, if short trouble occurs for the brake switch, the driving switch is closed so that the stator is connected
Winding is connected with rotor.
9. intelligent electric motor car according to claim 6, which is characterized in that under driving condition and braking state, the drive
It is both turned on connection between the stator winding and rotor of dynamic motor.
10. intelligent electric motor car according to claim 6, which is characterized in that be additionally provided at least one on the braking circuit
A brake control switch opens at least one of described brake control switch if short trouble occurs for the brake switch
To cut off the braking circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282375.XA CN108394315A (en) | 2018-04-02 | 2018-04-02 | Intelligent electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282375.XA CN108394315A (en) | 2018-04-02 | 2018-04-02 | Intelligent electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108394315A true CN108394315A (en) | 2018-08-14 |
Family
ID=63099519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282375.XA Pending CN108394315A (en) | 2018-04-02 | 2018-04-02 | Intelligent electric motor car |
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| Country | Link |
|---|---|
| CN (1) | CN108394315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842145A1 (en) * | 1978-09-28 | 1980-04-17 | Metabowerke Kg | Universal motor with braking circuit - has changeover switch with short circuiting armature winding or connecting in shunt circuit for excitation coil current interruption |
| US6094025A (en) * | 1992-06-05 | 2000-07-25 | Black & Decker Inc. | Controlled braking device for electric motors and in particular portable tools |
| CN1266015A (en) * | 1999-03-05 | 2000-09-13 | 曼内斯曼股份公司 | Driving device with controller for lifting or lowering mechanism of crane |
| CN202068363U (en) * | 2011-05-10 | 2011-12-07 | 天津市热工自控设备成套有限公司 | Three-phase motor braking circuit of intelligent electric operator |
| CN102739124A (en) * | 2011-04-05 | 2012-10-17 | 株式会社牧田 | Drive device for single-phase series commutator motor |
| CN105656359A (en) * | 2014-11-11 | 2016-06-08 | 南京德朔实业有限公司 | Electric tool and brake circuit suitable for motor |
| US20170149368A1 (en) * | 2014-09-17 | 2017-05-25 | Arm Limited | Motor driver and a method of operating thereof |
| US20180069493A1 (en) * | 2015-03-17 | 2018-03-08 | Cambridge Medical Robotics Ltd | A motor arrangement |
| CN108512463A (en) * | 2017-02-24 | 2018-09-07 | 南京德朔实业有限公司 | Control circuit and electric tool suitable for motor |
| CN208530303U (en) * | 2018-04-02 | 2019-02-22 | 南昌大学 | Intelligent electric motor car |
-
2018
- 2018-04-02 CN CN201810282375.XA patent/CN108394315A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842145A1 (en) * | 1978-09-28 | 1980-04-17 | Metabowerke Kg | Universal motor with braking circuit - has changeover switch with short circuiting armature winding or connecting in shunt circuit for excitation coil current interruption |
| US6094025A (en) * | 1992-06-05 | 2000-07-25 | Black & Decker Inc. | Controlled braking device for electric motors and in particular portable tools |
| CN1266015A (en) * | 1999-03-05 | 2000-09-13 | 曼内斯曼股份公司 | Driving device with controller for lifting or lowering mechanism of crane |
| CN102739124A (en) * | 2011-04-05 | 2012-10-17 | 株式会社牧田 | Drive device for single-phase series commutator motor |
| CN202068363U (en) * | 2011-05-10 | 2011-12-07 | 天津市热工自控设备成套有限公司 | Three-phase motor braking circuit of intelligent electric operator |
| US20170149368A1 (en) * | 2014-09-17 | 2017-05-25 | Arm Limited | Motor driver and a method of operating thereof |
| CN105656359A (en) * | 2014-11-11 | 2016-06-08 | 南京德朔实业有限公司 | Electric tool and brake circuit suitable for motor |
| US20180069493A1 (en) * | 2015-03-17 | 2018-03-08 | Cambridge Medical Robotics Ltd | A motor arrangement |
| CN108512463A (en) * | 2017-02-24 | 2018-09-07 | 南京德朔实业有限公司 | Control circuit and electric tool suitable for motor |
| CN208530303U (en) * | 2018-04-02 | 2019-02-22 | 南昌大学 | Intelligent electric motor car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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