CN209208448U - A kind of three-in-one electric drive vehicle bridge for electric vehicle - Google Patents
A kind of three-in-one electric drive vehicle bridge for electric vehicle Download PDFInfo
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- CN209208448U CN209208448U CN201821459423.XU CN201821459423U CN209208448U CN 209208448 U CN209208448 U CN 209208448U CN 201821459423 U CN201821459423 U CN 201821459423U CN 209208448 U CN209208448 U CN 209208448U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
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- 230000001133 acceleration Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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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
A kind of three-in-one electric drive vehicle bridge for electric vehicle.Refer to the technology that electric machine controller, motor and retarder become one, motor, retarder and electric machine controller are integrated into an assembly, and on the same axis by motor and retarder mounting arrangements, the main drive of motor output shaft driving retarder, power is reached differential mechanism again by main drive, two output gears of differential mechanism respectively with left and right half axis connection, the transmission shaft that the driving power of three-in-one electric drive vehicle bridge is passed through into semiaxis to left and right sides, tyre rotation is driven, realizes driving vehicle to run.Electric machine controller is according to the duty requirements of vehicle, the exciting current of motor is controlled by electronic control unit, realize the torque and revolving speed control of motor, meet the traveling and job requirements of vehicle, controller is mounted on the shell of motor, saves the copper wire between controller and motor, product is using integrated, Supplier Number is reduced, is reduced costs.
Description
Technical field
The utility model belongs to electric vehicle transmission drive area more particularly to a kind of three for special electric vehicle
Unify electric drive vehicle bridge.
Background technique
Pure electric automobile has the advantages that compact-sized, lighter weight, at low cost.Electric drive axle is then this kind of pure electric vehicle
The core component of automobile, including electric drive axle mechanical structure and its driving control system.How design performance requirement is being met
Lower guarantee electric drive axle structure has good control performance with enough intensity and driving control system, is always industry
One of the hot spot of boundary's concern.
Application No. is a kind of coaxial associated mode driving axis of electric car is described in 201210582982.0 patent.It should
Patent has technical point that axle housing includes barrel-type casing assembly and left and right axle housing pipe assembly, driving motor, speed reducer assembly, difference
Fast device assembly is assembled in same barrel-type casing assembly.But the housing assembly of the patent is whole box-structure, can not achieve vehicle
Independent suspension function, the electric machine structure process implementing of the offer of patent is difficult.
In view of the above problems, a kind of three-in-one electric drive vehicle bridge for special electric vehicle, by motor control
Device, motor and retarder processed become one, compact-sized, and installation space optimization saves the use of copper wire, improves motor
Transmission efficiency, while the independent suspension of vehicle may be implemented.
Utility model content
The purpose of this utility model is to obtain a kind of three-in-one electric drive vehicle bridge for special electric vehicle.
The technical solution adopted in the utility model is thus: a kind of three-in-one electric drive vehicle for special electric vehicle
Bridge, the motor of electric drive axle have the motor assembly of stator and rotor, and motor assembly is coaxially arranged relative to vehicle bridge, and stator is fixed
On the chassis frame of vehicle；
Electric drive axle has deceleration device, and input link is connected to rotor, and deceleration device is arranged along vehicle bridge axis direction,
An entirety is mounted to motor；
The other side of motor is equipped with differential mechanism, and the input part of differential mechanism is connected to deceleration device by hollow shaft
Output end；Hollow shaft extends through the rotor of motor；
Differential mechanism using conventional mechanical differential gear box structure, by the driving moment distribution of motor in left side output axle shaft and
Right side output axle shaft, output axle shaft are connected respectively to transmission shaft, finally on the left and right sidesing driving wheel tire of vehicle bridge.
The shell of motor is cylindrical electric machine casing, and inside, which has, is used for fluid-cooled cooling pipe.
The mechanical differential gear box: planetary gear support shaft is planet carrier, the output hollow shaft phase of planet carrier and retarder
Even, the sun gear of differential mechanism is connected with corresponding semiaxis respectively.
A kind of control method of the three-in-one electric drive vehicle bridge for special electric vehicle,
Electronic control unit includes input module, computing module, motor control module and output module.
Input module input terminal is connected with AD conversion；AD conversion respectively with motor speed sensor, vehicle speed sensor, plus
Speed pedal position sensor, brake pedal sensor connection；Input module output end is connect with computing module input terminal；Operation mould
Block output end is connect with motor controlling module input end；Motor control module output end is connect with output module input terminal；Output
The connection of the control current terminal of module output end and motor；
Input module is used to receive the speed signal of vehicle speed sensor, the brake pedal sensor of brake pedal sensor letter
Number and accelerator pedal position sensor signal, and by speed signal, brake-pedal travel signal and acceleration pedal position signal
It is transmitted to computing module.
The utility model has the advantages that: electric machine controller is controlled according to the duty requirements of vehicle by electronic control unit
The electric current of the excitation of motor realizes the torque and revolving speed control of motor, meets the traveling and job requirements of vehicle, controller installation
On the shell of motor, the copper wire between controller and motor is saved, product reduces Supplier Number using integrated,
It reduces costs.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram for being equipped with the utility model.
Fig. 2 shows the conventional mechanical differential mechanism schematic diagrames of the utility model.
Fig. 3 shows the electronic control system principle schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, special electric vehicle uses the powertrain of the utility model.The motor of electric drive axle is with fixed
The motor assembly 8 of son 7 and rotor 5.Motor assembly 8 is coaxially arranged relative to vehicle bridge.Stator 7 is fixed on the chassis frame of vehicle
On.Electric drive axle has deceleration device 4, and input link is connected to rotor 5.Deceleration device 4 along vehicle bridge axis direction arrange, with
Motor 8 is mounted to an entirety.The other side of motor 8 is equipped with differential mechanism 11, and the input part of differential mechanism 11 passes through hollow
Axis 10 is connected to the output end of deceleration device 4.Hollow shaft 10 extends through the rotor 5 of motor 8.Differential mechanism 11 is using routine
Mechanical differential gear box structure distributes the driving moment of motor 8 in left side output axle shaft 3 and right side output axle shaft 12.Output half
Axis 3 and 12 is connected respectively to transmission shaft 2 and 13, finally on the left and right sidesing driving wheel tire 1 and 14 of vehicle bridge.
The shell of motor 8 is cylindrical electric machine casing, and inside, which has, is used for fluid-cooled cooling pipe 6.
Fig. 2 shows the conventional mechanical differential design schematic diagrames of electric drive axle according to the present utility model.Planetary gear
16 support shaft is planet carrier 10, and planet carrier 10 is connected with the output hollow shaft 6 of retarder, the sun gear 12 and 15 of differential mechanism 11
It is connected respectively with semiaxis 3 and 12.
Fig. 3 show electronic control system principle schematic diagram.Electronic control unit includes input module, operation mould
Block, motor control module and output module.
Input module input terminal is connected with AD conversion；AD conversion respectively with motor speed sensor, vehicle speed sensor, plus
Speed pedal position sensor, brake pedal sensor connection；Input module output end is connect with computing module input terminal；Operation mould
Block output end is connect with motor controlling module input end；Motor control module output end is connect with output module input terminal；Output
The connection of the control current terminal of module output end and motor；
Input module is used to receive the speed signal of vehicle speed sensor, the brake pedal sensor of brake pedal sensor letter
Number and accelerator pedal position sensor signal, and by speed signal, brake-pedal travel signal and acceleration pedal position signal
It is transmitted to computing module.
The utility model is described in more detail below:
The utility model relates to a kind of three-in-one electric drive vehicle bridge for special electric vehicle, electric car is three-in-one
Electric drive system technology refers to the technology that electric machine controller, motor and retarder become one, comprising: axially disposed
Motor, motor have stator and rotor, and rotor is connected to the driving output of motor, and retarder is connected to motor.Retarder includes
One mechanical reduction gear and differential mechanism have input shaft and output shaft.Mechanical reduction gear is connect with differential mechanism, and differential mechanism is adopted
It is inputted with planet carrier, by two planetary gears, sun gear output, sun gear output is passed by half axis connection of left and right side
Moving axis is to wheel.The main drive and differential mechanism of retarder are arranged in the two sides of motor, differential mechanism in the axial direction
Planet carrier mechanical reduction gear is connected to as input by hollow shaft, the sun gear of differential mechanism is separately connected left and right semiaxis,
The power of semiaxis reaches wheel through transmission shaft.Motor uses the structure type of hollow shaft, and semiaxis passes through the hollow shaft of motor, until electricity
The transmission shaft of the other side of machine drives tire rotation.
The patent is a kind of three-in-one electric drive vehicle bridge for special electric vehicle, which has electricity
Machine and controller, controller are integrated on electric machine casing, save the copper wire connection between controller and motor.
Further, the electronic control unit includes input module, computing module, motor control module and output module；
The input module input terminal is connected with AD conversion；AD conversion is sensed with motor speed sensor, speed respectively
Device, accelerator pedal position sensor, brake pedal sensor connection；Input module output end is connect with computing module input terminal；
Computing module output end is connect with motor controlling module input end；Motor control module output end and output module input terminal connect
It connects；The connection of the control current terminal of output module output end and motor；
The input module is used to receive the speed signal of vehicle speed sensor, the brake pedal sensing of brake pedal sensor
The signal of device signal and accelerator pedal position sensor, and by speed signal, brake-pedal travel signal and accelerator pedal position
Signal is transmitted to computing module.
The patent is to integrate motor and retarder, coaxially arranged.The output shaft of motor is connected to deceleration
The input shaft of device, the output shaft connected with differential of retarder, and the planet carrier as differential mechanism are input link, differential mechanism
Sun gear is the output link of retarder, is connected respectively to the jack shaft of the left and right side of drive axle.
Further, the patent is that motor shaft is fabricated to hollow structure, the connection semiaxis of the sun gear on the right side of differential mechanism
Across the hollow shaft of rotor, until the left side of electric drive axle, connects transmission shaft, driving left side tire；
The Driven by Coaxial bridge of the integrated motor and speed changer can sufficiently save installation space, in electric drive axle structure
Between it is larger, two sides become smaller.The gear assembly of retarder is arranged in the side of motor, and differential mechanism is arranged in the another of motor
Side.Since motor and retarder are coaxially arranged in axis, structure size is small, can obtain optimal installation space；
The electric drive vehicle bridge, motor and retarder are mounted in a shell, and electric machine controller is mounted on electricity
On casing body；
It is cylindrical electric machine casing that the electric drive vehicle bridge, which has shell, and inside has cooling for fluid-cooled
Pipeline.
A kind of three-in-one electric drive vehicle bridge for special electric vehicle of the utility model can have several using peace
Dress mode: 1) conventional in use, the rear axle or preceding bridge of vehicle can be used alone as；2) when vehicle needs four-wheel drive, front and back
Bridge can be using electric drive vehicle bridge described in this patent.
The three-in-one electric drive vehicle bridge of the special electric vehicle of the type can expand the drive for new-energy automobile
Dynamic bridge.
When the electric drive vehicle bridge is used for automobile, due to there is transmission shaft between vehicle bridge and tire, the suspension of automobile is non-
Often facilitate arrangement, and not will increase the unsprung mass of automotive suspension, will not have an adverse effect to vehicle ride comfort.
Claims (3)
1. a kind of three-in-one electric drive vehicle bridge for electric vehicle, which is characterized in that the motor of electric drive axle has stator
With the motor assembly of rotor, motor assembly is coaxially arranged relative to vehicle bridge, and stator is fixed on the chassis frame of vehicle；
Electric drive axle has deceleration device, and input link is connected to rotor, and deceleration device is arranged along vehicle bridge axis direction, with electricity
Machine is mounted to an entirety；
The other side of motor is equipped with differential mechanism, and the input part of differential mechanism is connected to the output of deceleration device by hollow shaft
End；Hollow shaft extends through the rotor of motor；
Differential mechanism distributes the driving moment of motor in left side output axle shaft and right side output axle shaft, and output axle shaft is connected respectively to
Transmission shaft, finally on the left and right sidesing driving wheel tire of vehicle bridge.
2. a kind of three-in-one electric drive vehicle bridge for electric vehicle according to claim 1, which is characterized in that motor
Shell be cylindrical electric machine casing, inside, which has, is used for fluid-cooled cooling pipe.
3. a kind of three-in-one electric drive vehicle bridge for electric vehicle according to claim 1, which is characterized in that described
Differential mechanism: planetary gear support shaft is planet carrier, and planet carrier is connected with the output hollow shaft of retarder, the sun gear of differential mechanism
It is connected respectively with corresponding semiaxis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459423.XU CN209208448U (en) | 2018-09-07 | 2018-09-07 | A kind of three-in-one electric drive vehicle bridge for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459423.XU CN209208448U (en) | 2018-09-07 | 2018-09-07 | A kind of three-in-one electric drive vehicle bridge for electric vehicle |
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| Publication Number | Publication Date |
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| CN209208448U true CN209208448U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821459423.XU Active CN209208448U (en) | 2018-09-07 | 2018-09-07 | A kind of three-in-one electric drive vehicle bridge for electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435657A (en) * | 2018-09-07 | 2019-03-08 | 天嘉智能装备制造江苏股份有限公司 | A kind of three-in-one electric drive vehicle bridge and its control method for electric vehicle |
| CN112797135A (en) * | 2021-01-28 | 2021-05-14 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Differential system and vehicle |
-
2018
- 2018-09-07 CN CN201821459423.XU patent/CN209208448U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435657A (en) * | 2018-09-07 | 2019-03-08 | 天嘉智能装备制造江苏股份有限公司 | A kind of three-in-one electric drive vehicle bridge and its control method for electric vehicle |
| CN112797135A (en) * | 2021-01-28 | 2021-05-14 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Differential system and vehicle |
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