CN207535723U - The arrangements for speed regulation of electric vehicle - Google Patents
The arrangements for speed regulation of electric vehicle Download PDFInfo
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- CN207535723U CN207535723U CN201721246886.3U CN201721246886U CN207535723U CN 207535723 U CN207535723 U CN 207535723U CN 201721246886 U CN201721246886 U CN 201721246886U CN 207535723 U CN207535723 U CN 207535723U
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- switching switch
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model is related to a kind of arrangements for speed regulation of electric vehicle, including wheel hub motor, connection box for motor, control circuit board and the motor speed sensor being connected with control circuit board.There is first group of connecting node being connected with power supply and second group of connecting node, the first switching switch, the second switching switch in connection box for motor.Three-phase windings first end is connected in first group of connecting node, three-phase windings second end is connected in second group of connecting node, the second end of three-phase windings can be connected to common node to form the star-like connection of three-phase windings by second group of connecting node by the conducting of the first switching switch, and the second end of three-phase windings can be connected to the first end of adjacent winding to form the connection of the triangle of three-phase windings by second group of connecting node by the conducting of the second switching switch.The arrangements for speed regulation of the electric vehicle can realize switching wheel hub motor winding connection to ensure that electric vehicle is well run by the first switching switch, the second switching switch.
Description
Technical field
The utility model is related to the arrangements for speed regulation of vehicle technology field, more particularly to electric vehicle.
Background technology
Electric vehicle is because the advantages that its is easy to use, upper quick-moving, is very popular, the wheel hub motor conduct in electric vehicle
The important component of speed governing realizes the speed governing of electric vehicle.Electric vehicle needs larger torque when starting, and in normal ride
Then need higher rotating speed.The wheel hub motor used in electric vehicle at present, machine winding or using star connection connection or
Person is connected using delta connection, and the winding of wheel hub motor can not realize the switching of winding star, delta connection.Wheel hub at present
Motor uses the motor of star connection more, can only be run at high speed in the case of electric vehicle startup, climbing and heavy burden, in high-speed cruising
When, it is difficult to big load strong moment output is formed, causes wheel hub motor heavy overload, it is difficult to drive electric vehicle normal walking, show
For horsepower deficiency, motor rotation blockage fever influences the normal work under load condition.Simultaneously so that the accumulator long-time of electric vehicle
Heavy-current discharge causes electric vehicle course continuation mileage to shorten, and if being chronically at this state, the service life of accumulator also will significantly
Shorten.
Utility model content
Technical problem to be solved in the utility model is to provide one kind for the above-mentioned prior art to allow hand over wheel hub electricity
The arrangements for speed regulation of the electric vehicle of machine winding connection.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of arrangements for speed regulation of electric vehicle, packet
Wheel hub motor, connection box for motor, control circuit board and motor speed sensor are included, the motor speed sensor is arranged on institute
It states on wheel hub motor and is connected with the control circuit board, it is characterised in that：Three are wound on the stator of the wheel hub motor
Phase winding, six leads at the three-phase windings both ends are drawn from the wheel hub motor；
There is first group of connecting node, second group of connecting node, the first switching switch and second in the connection box for motor
Switching switch, first group of connecting node are connected with power supply；
Three leads of wherein three-phase windings first end are connected in first group of connecting node in connection box for motor, three-phase
The three lead-in wires of winding second end are connected in second group of connecting node of connection box for motor, and second group of connecting node can
The second end of three-phase windings is connected to common node by the conducting of the first switching switch to form the star of three-phase windings
The second end of three-phase windings can be connected to adjacent by connection, second group of connecting node by the conducting of the second switching switch
The first end of winding is connected with forming the triangle of three-phase windings；
Same time, first switching switch and the one of ON operation of the second switching switch, first switching
Switch, the second switching switch are connected respectively with the control circuit board with the ON operation under the control of control circuit board.
There is controller and switch driving circuit, the controller and switch drive electricity in the control circuit board
Road is connected, and first switching switch, the second switching switch are connected respectively with the switch driving circuit.
Preferably, the first switching switch, the second switching switch use metal-oxide-semiconductor power device.
Preferably, the motor speed sensor is Hall sensor or encoder.
Compared with prior art, the utility model has the advantage of：In connection box for motor in the arrangements for speed regulation of the electric vehicle
The first switching switch or the is connected in the first switching switch of middle setting, the second switching switch, and then by the control of control circuit board
Two switching switches, and then realize the switching of the star-like connection of three-phase windings in wheel hub motor, triangle connection.So in electric vehicle
Startup, climbing and heavy burden situation control the first switching switch to be connected and then realize the star-like connection of three-phase windings, guarantee wheel hub electricity
The big torque output of machine.And after motor speed is more than given threshold, then switch the conducting of the second switching switch, that is, switch to three-phase
Winding triangle connects, and ensures the high rotating speed output of wheel hub motor.
Description of the drawings
Fig. 1 is the structure diagram of the arrangements for speed regulation of electric vehicle in the utility model embodiment.
Fig. 2 is the schematic diagram of the arrangements for speed regulation of electric vehicle in the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As depicted in figs. 1 and 2, the arrangements for speed regulation of the electric vehicle in the present embodiment, including wheel hub motor 1, connection box for motor
2nd, control circuit board 3 and motor speed sensor 4.
Wherein control circuit board 3 can specially be set as needed, can also be directly using full-vehicle control electricity on electric vehicle
Road plate 3.There is controller 31 and the switch driving circuit 32 being connected with controller 31, controller 31 in control circuit board 3
The existing control chip such as microcontroller may be used, switch driving circuit 32 then may be used utilizes weak electric signal in the prior art
The driving circuit that driving forceful electric power component works.
Motor speed sensor 4 is mounted on the lid of wheel hub motor 1, for detecting the tach signal of wheel hub motor 1, this
In embodiment, motor speed sensor 4 uses Hall sensor or encoder.Motor speed sensor 4 is connected with controller 31
It connects, and then the tach signal for detecting wheel hub motor 1 can be sent in controller 31, controller 31 is according to tach signal meter
The rotating speed of wheel hub motor 1 is calculated, and then sends corresponding control command.
Three-phase windings are wound on the stator of wheel hub motor 1, six leads at the three-phase windings both ends are from wheel hub motor 1
It draws to be connected on connection box for motor 2.
There is in connection box for motor 2 first group of connecting node, 21, second groups of connecting nodes 22, the first switching switch 23 and the
Two switching switches 24.21, second groups of connecting nodes 22 of wherein first group of connecting node are respectively provided with three connecting pins, first group of connection
Three connecting pins of node 21 are connected respectively with the three phase supply line of three phase mains.
Three leads of wherein three-phase windings first end are connected on three connecting pins of first group of connecting node 21,
Thus by first group of connecting node 21, the three phase supply line of three-phase windings first end and power supply realizes connection, ensure that power supply
Power supply to stator winding.
The three lead-in wires of three-phase windings second end are connected on three connecting pins of second group of connecting node 22.Second group of company
Node 22 is connect the second end of three-phase windings can be connected to common node to be formed by the conducting of the first switching switch 23
The star-like connection of three-phase windings.Second group of connecting node 22 can be by the conducting of the second switching switch 24 by the of three-phase windings
Two ends are connected to the first end of adjacent winding to form the connection of the triangle of three-phase windings.The first switching switch in the present embodiment
23rd, the second switching switch 24 uses metal-oxide-semiconductor power device, and the first switching switch 23, the second switching switch 24 pass through switch respectively
Driving circuit is connected with controller 31, and controller 31 is according to the motor speed of detection rotary speed threshold value corresponding with switching dynamic condition
It compares, and then the first switching switch 23, the second switching switch 24 is controlled to be turned on and off, while control in the same time, the
One switching switch 23, there are one ON operations for the second switching switch 24.
The use process of the arrangements for speed regulation of the electric vehicle is as follows：When electric vehicle starts, controller 31 passes through switch drive electricity
Road 32 drives the first switching switch 23 to be connected, that is, realizes that three-phase windings realize star-like connection, wheel hub motor 1 is transported in the slow-speed of revolution at this time
The output of high-torque is capable of providing while row, enough power is provided to electric vehicle.In the present embodiment, at wheel hub motor 1
Motor torque is higher than common electric machine when low or first gear.After 1 rotating speed of wheel hub motor gradually increases in electric vehicle, when speed probe obtains
When the rotary speed data taken is more than setting speed threshold value, controller 31 drives the second switching switch 24 to lead by switch driving circuit 32
It is logical, while the first switching switch 23 disconnects, and then realizes the triangle connection of three-phase windings.In the present embodiment, wheel hub motor 1
Motor speed is higher than common electric machine during in top gear.And when electric vehicle climbed, loading when, work as motor speed sensor
4 detect 1 rotating speed of wheel hub motor less than after setting speed threshold value, then controller 31 controls the first switching switch 23 to be connected, simultaneously
Second switching switch 24 disconnects, so realize three-phase windings star-like connection, ensure wheel hub motor 1 torque output meet it is electronic
Requirement is walked by garage.According further to needs, the arrangements for speed regulation motor of the electric vehicle can also according to the torque data detected in real time with
The torque threshold of setting is compared, and then realizes that the star-like connection of three-phase windings or triangle connection, control method are same
Preceding method.
Claims (4)
1. a kind of arrangements for speed regulation of electric vehicle, including wheel hub motor (1), connection box for motor (2), control circuit board (3) and electricity
Machine speed probe (4), the motor speed sensor (4) be arranged on the wheel hub motor (1) and with the control circuit
Plate (3) is connected, it is characterised in that：Three-phase windings, the three-phase windings both ends are wound on the stator of the wheel hub motor (1)
Six leads from the wheel hub motor (1) draw；
There is first group of connecting node (21), second group of connecting node (22), first switching switch in the connection box for motor (2)
(23) it is connected with the second switching switch (24), first group of connecting node (21) with power supply；
Three leads of wherein three-phase windings first end are connected on first group of connecting node (21) in connection box for motor (2),
The three lead-in wires of three-phase windings second end are connected on second group of connecting node (22) of connection box for motor (2), described second group
The second end of three-phase windings can be connected to common node by connecting node (22) by the conducting of the first switching switch (23)
To form the star-like connection of three-phase windings, second group of connecting node (22) can pass through the conducting of the second switching switch (24)
The second end of three-phase windings is connected to the first end of adjacent winding to form the connection of the triangle of three-phase windings；
Same time, first switching switch (23) and the second switching switch (24) one of ON operation, described first
Switching switch (23), the second switching switch (24) are connected with the control circuit board (3) in control circuit board (3) respectively
The lower ON operation of control.
2. the arrangements for speed regulation of electric vehicle according to claim 1, it is characterised in that：Have on the control circuit board (3)
Controller (31) and switch driving circuit (32), the controller (31) are connected with the switch driving circuit (32), institute
State the first switching switch (23), the second switching switch (24) is connected respectively with the switch driving circuit (32).
3. the arrangements for speed regulation of electric vehicle according to claim 1 or 2, it is characterised in that：First switching switch (23), second
Switching switch (24) is using metal-oxide-semiconductor power device.
4. the arrangements for speed regulation of electric vehicle according to claim 1 or 2, it is characterised in that：The motor speed sensor (4)
For Hall sensor or encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246886.3U CN207535723U (en) | 2017-09-26 | 2017-09-26 | The arrangements for speed regulation of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246886.3U CN207535723U (en) | 2017-09-26 | 2017-09-26 | The arrangements for speed regulation of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207535723U true CN207535723U (en) | 2018-06-26 |
Family
ID=62608953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721246886.3U Active CN207535723U (en) | 2017-09-26 | 2017-09-26 | The arrangements for speed regulation of electric vehicle |
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| Country | Link |
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| CN (1) | CN207535723U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859733A (en) * | 2018-08-12 | 2018-11-23 | 姜春辉 | A kind of electric car, hub motor and hub motor differential speed system |
| CN111697675A (en) * | 2020-06-22 | 2020-09-22 | 深圳市吉胜华力科技有限公司 | Novel motorcycle wheel hub motor |
| CN113300660A (en) * | 2021-06-16 | 2021-08-24 | 国华(青岛)智能装备有限公司 | Multifunctional motor control circuit and control method |
-
2017
- 2017-09-26 CN CN201721246886.3U patent/CN207535723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859733A (en) * | 2018-08-12 | 2018-11-23 | 姜春辉 | A kind of electric car, hub motor and hub motor differential speed system |
| CN111697675A (en) * | 2020-06-22 | 2020-09-22 | 深圳市吉胜华力科技有限公司 | Novel motorcycle wheel hub motor |
| CN113300660A (en) * | 2021-06-16 | 2021-08-24 | 国华(青岛)智能装备有限公司 | Multifunctional motor control circuit and control method |
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