CN209814146U - Active electric driving device for trailer - Google Patents
Active electric driving device for trailer Download PDFInfo
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- CN209814146U CN209814146U CN201920610598.4U CN201920610598U CN209814146U CN 209814146 U CN209814146 U CN 209814146U CN 201920610598 U CN201920610598 U CN 201920610598U CN 209814146 U CN209814146 U CN 209814146U
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- trailer
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- converter
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- 230000005611 electricity Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000000979 retarding effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a vehicle engineering field discloses an active electricity drives device for trailer, including transaxle, motor power, dc-to-ac converter, power battery, battery management system, high voltage distribution box, trailer battery, trailer controller and direct current converter, motor power's electrical input end with the dc-to-ac converter is connected, motor power's mechanical output end with the input of transaxle is connected, power battery respectively with battery management system with high voltage distribution box connects, the trailer battery passes through direct current converter and connects high voltage distribution box, trailer controller respectively with dc-to-ac converter, battery management system, direct current converter communication are connected. The utility model has the characteristics of the integrated level is high, simple structure, good reliability, whole car fit well etc, and arbitrary bearing bridge in the conventional trailer can be replaced with active electricity device of driving to this modular trailer, also can replace many bearing bridges in order to promote trailer wholeness ability simultaneously.
Description
Technical Field
The utility model belongs to the technical field of vehicle engineering and specifically relates to a trailer is with active electricity device of driving is related to.
Background
A semitrailer is a trailer whose axle is positioned behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and which is equipped with a coupling device that transmits horizontal and vertical forces to the tractor. The semitrailer is typically a three-axle semitrailer, with the towing vehicle powering the trailer through a coupling device.
Compared with a single automobile, the semitrailer can improve the comprehensive economic benefit of road transportation, the transportation efficiency can be improved by 30-50%, the cost is reduced by 30-40%, the oil consumption is reduced by 20-30%, and more importantly, the use of the semitrailer plays a certain role in promoting the organization form of logistics in China.
The core components of the electric automobile comprise a power battery system, a power motor system, a high-voltage power distribution system, a heat management system, a corresponding vehicle control unit and the like. The high-voltage power distribution system distributes the electric energy of the power battery to each large electric device to realize the on-off control of high voltage to the electric device; the power motor system converts electric energy into mechanical energy to drive the vehicle to run, and simultaneously converts the mechanical energy into electric energy to supplement the electric quantity of the battery; the heat management system controls the working temperature of components such as the power battery system, the power motor system and the like to be maintained in a specific range; and the vehicle control unit coordinates the optimal work of each part to realize the maximization of the system efficiency.
Along with the continuous improvement of the requirements of users on the timeliness and the safety of goods transportation, the corresponding requirements on the performance of the vehicle are also continuously improved. Due to the problems of long body, heavy load, and high braking loss, the performance of the semi-trailer is increasingly emphasized. The electric drive system composed of the power motor system, the power battery system, the related accessory controller and the like is more and more concerned in application scenes due to the characteristics of high reliability, outstanding dynamic performance, remarkable braking energy recovery effect and the like. At present, an electric drive system is not applied to a related precedent in the field of trailers, an integration and systematization scheme is urgently needed, and the whole vehicle is fuel-saving while the vehicle dynamic is improved.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model provides a trailer is with active electricity device of driving, it has characteristics such as the integrated level is high, simple structure, good reliability, whole car suits well, and arbitrary bearing bridge in the conventional trailer can be replaced to this modular trailer is with active electricity device of driving, also can replace many bearing bridges in order to promote trailer wholeness ability simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a trailer is with active electricity device of driving, includes transaxle, motor power, dc-to-ac converter, power battery, battery management system, high voltage distribution box, trailer battery, trailer controller and direct current converter, motor power's electrical input with the dc-to-ac converter is connected, motor power's mechanical output end with the input of transaxle is connected, power battery respectively with battery management system with high voltage distribution box connects, the trailer battery passes through direct current converter and connects high voltage distribution box, trailer controller respectively with inverter, battery management system, direct current converter connect.
Furthermore, a speed reducing mechanism is arranged at the front end of the power motor, and the input end of the speed reducing mechanism is connected with the output end of the power motor.
Further, the speed reducing mechanism is a single-speed-ratio speed reducer or a multi-speed-ratio gearbox.
Further, the output end of the speed reducing mechanism is connected with the input end of the drive axle.
Furthermore, the device also comprises a thermal management system, wherein the thermal management system is sequentially connected with the power battery, the inverter and the power motor through cooling water pipes.
Further, the trailer storage battery is a 24V lead-acid storage battery or a 12V lead-acid storage battery.
Furthermore, the power motor can be an alternating current asynchronous motor, a switch magnetic group motor and a permanent magnet synchronous motor, and preferably the permanent magnet synchronous motor.
The utility model has the advantages as follows:
1) the utility model integrates a high-voltage power battery system, realizes certain electric energy storage, converts electric energy into mechanical energy to provide driving force for the vehicle when the vehicle needs to be accelerated through the power motor in the running process of the vehicle, and realizes the improvement of the dynamic property of the vehicle; in the braking process of the vehicle, the mechanical energy is converted into electric energy to be stored in the power battery, and the loss of a braking system and the energy loss are reduced.
2) The utility model discloses integrated trailer battery and direct current converter, direct current converter can charge for the trailer battery with the low pressure direct current of power battery electric energy transformation, can realize the long-time supply of trailer low-voltage electricity, promote the flexibility that the electric energy used.
3) The utility model discloses integrated thermal management system, this thermal management system can realize the temperature regulation of equipment such as power battery, motor power, dc-to-ac converter for each part work improves system total efficiency, energy saving between the optimum temperature interval of efficiency.
4) The utility model discloses integrateed trailer controller, it gathers the whole car signal of tractor, carries out the judgement of driver's driving intention, and coordinated control motor power work is in electricity generation or electric mode, and the conversion process of nimble switching mechanical energy and electric energy has that whole car adaptation is nimble, characteristics such as the tactics is simple reliable.
5) The utility model discloses can inherit single reduction gear or multi-speed ratio gearbox between motor power and transaxle, realize motor power's speed reduction and increase the turn round, full play motor power's high-efficient work interval
6) The utility model discloses contain power battery, can realize the electric energy of multiple pattern and use, if provide the electric energy for trailer facial make-up part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: the system comprises a drive axle 1, a power motor 2, an inverter 3, a power battery 4, a battery management system 5, a high-voltage distribution box 6, a trailer storage battery 7, a trailer controller 8, a direct-current converter 9, a speed reducing mechanism 10, a transmission shaft 11, a thermal management system 12 and a cooling water pipe 13.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application.
As shown in fig. 1, an active electric drive device for a trailer includes a drive axle 1, a power motor 2, an inverter 3, a power battery 4, a battery management system 5, a high-voltage distribution box 6, a trailer battery 7, a trailer controller 8 and a dc converter 9.
The drive axle 1 is composed of a main speed reducer, a differential, a half shaft, an input shaft and the like.
The electrical input end of the power motor 2 is connected with the inverter 3, and the mechanical output end of the power motor 2 is connected with the input end of the drive axle 1; the power battery 4 is respectively connected with a battery management system 5 and a high-voltage distribution box 6; the trailer accumulator 7 is connected with the high-voltage distribution box 6 through a direct-current converter 9.
The front end of the power motor 2 is provided with a speed reducing mechanism 10, the input end of the speed reducing mechanism 10 is connected with the output end of the power motor 2, and the output end of the speed reducing mechanism 10 is connected with the input end of the drive axle 1. The reduction mechanism 10 is a multi-ratio transmission.
The power motor 2 is preferably a permanent magnet synchronous motor, the output end of the power motor is connected with the input end of the multi-speed-ratio gearbox, and the output end of the multi-speed-ratio gearbox is connected with the input end of the drive axle 1 through a transmission shaft 11.
The power motor 2 is connected with the inverter 3 through a three-phase line high-voltage wire harness and a signal communication line, and the inverter drives the power motor to work in an electric mode or a power generation mode. The power battery 4 is used for storing electric energy and is connected with the high-voltage distribution box through a high-voltage wire harness 6. The high-voltage distribution box 6 is used for realizing on-off control of different high-voltage loops, and the load of the output end of the high-voltage distribution box comprises an inverter 3 and a direct-current converter 9 and can also comprise other high-voltage electric equipment.
The direct current converter 9 is connected with the high-voltage distribution box 6 through a high-voltage wire harness; the direct current converter 9 is connected with the trailer storage battery 7 through a low-voltage wire harness, so that the conversion from the high voltage of the power battery 4 to the low voltage of the trailer storage battery 7 is realized; the trailer storage battery 7 realizes low-voltage electric energy storage and provides electric energy for various controllers and low-voltage electric equipment, and the trailer storage battery 7 preferably selects a 24V lead-acid battery pack and can also select a 12V lead-acid battery pack or other electric energy storage devices with other voltage grades.
The active electric driving device for the trailer is also provided with a thermal management system 12, and the thermal management system 12 is sequentially connected with the power battery 2, the inverter 3 and the power battery 4 through a cooling water pipe 13. The trailer controller 8 receives temperature information of the power battery 4, the inverter 3, the power motor 2 and other components, sends a control instruction to the thermal management system 12 through a communication wire harness, and the thermal management system 12 realizes temperature management of each power assembly so that each component can work at the optimal working temperature. The thermal management system 12 is preferably an air conditioning liquid cooling scheme, and may also be a forced liquid cooling scheme.
The trailer controller 8 is respectively connected with the inverter 3, the battery management system 5, the thermal management system 12, the direct current converter 9 and the like through communication wiring harnesses, meanwhile, the communication wiring harnesses are connected with the main trailer to achieve interaction of states of all parts and control signals, and the trailer controller 8 is a physical basis for achieving an active trailer control strategy. The communication harness is not limited to a bus-type communication harness, and CAN bus is preferable.
Starting self-checking after the trailer controller 8 is powered on, and enabling the electric driving device to enter an offline state when the self-checking fails; and when the self-checking passes, acquiring relevant signals of the towing tractor, including but not limited to an accelerator pedal stroke, a braking signal, an auxiliary braking signal, a neutral gear signal, a reverse gear signal, a clutch signal, a driver required torque signal, an engine rotating speed signal, a vehicle speed signal and an engine actual torque signal. The trailer controller 8 analyzes the signal states and analyzes the driving intention of the driver; when the driver is judged to be a power output request, the trailer controller 8 judges whether the power battery 4 has residual electric quantity, when the residual electric quantity exists, a control instruction is sent to the inverter 3, the inverter 3 controls the power motor to work in an electric mode, the power motor outputs torque outwards, the torque is transmitted to wheels through the speed reducing mechanism 10, the transmission shaft 11 and the drive axle 1, and the vehicle is driven to move forwards or backwards. When no available electric quantity exists, the trailer controller 8 sends a control instruction to the inverter 3, and the inverter 3 controls the power motor to work in a free mode; when the deceleration requirement of a driver is judged, the trailer controller 8 judges whether the power battery is fully charged, when the power battery is not fully charged, the trailer controller 8 sends a control instruction to the inverter 3, the inverter 3 controls the power motor to work in a power generation mode, the torque transmitted by wheels is transmitted to the power motor 2 through the drive axle 1, the transmission shaft 11 and the deceleration mechanism 10, the electric energy is transmitted to the power battery 7 through the inverter 3 and the high-voltage distribution box 6 through a high-voltage line to be stored, and when the electric quantity of the power battery 7 is sufficient, the inverter 3 controls the power motor 2 to work in a free mode.
The above embodiments are merely illustrative or explanatory of the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. The present invention also includes such modifications and variations provided they come within the scope of the appended claims and their equivalents.
Claims (5)
1. The utility model provides a trailer is with active electricity device that drives which characterized in that: including transaxle, motor power, dc-to-ac converter, power battery, battery management system, high voltage distribution box, trailer battery, trailer controller and direct current converter, motor power's electrical input with the dc-to-ac converter is connected, motor power's mechanical output with the input of transaxle is connected, power battery respectively with battery management system with high voltage distribution box connects, the trailer battery passes through direct current converter and connects high voltage distribution box, trailer controller respectively with inverter, battery management system and direct current converter are connected.
2. An active electric drive for a trailer as defined in claim 1, wherein: the front end of the power motor is provided with a speed reducing mechanism, and the input end of the speed reducing mechanism is connected with the output end of the power motor.
3. An active electric drive for a trailer as claimed in claim 2 wherein said speed reduction mechanism is a multiple ratio gearbox or a single ratio retarder.
4. An active electric drive for a trailer as claimed in claim 2 wherein an output of said retarding mechanism is connected to an input of said transaxle.
5. The active electric drive system for a trailer of claim 1, further comprising a thermal management system, wherein the thermal management system is connected in series with the power battery, the inverter, and the power motor sequentially through cooling water pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610598.4U CN209814146U (en) | 2019-04-30 | 2019-04-30 | Active electric driving device for trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610598.4U CN209814146U (en) | 2019-04-30 | 2019-04-30 | Active electric driving device for trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209814146U true CN209814146U (en) | 2019-12-20 |
Family
ID=68882362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920610598.4U Active CN209814146U (en) | 2019-04-30 | 2019-04-30 | Active electric driving device for trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209814146U (en) |
-
2019
- 2019-04-30 CN CN201920610598.4U patent/CN209814146U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240416 Address after: 266000 No.1 Loushan Road, Licang District, Qingdao City, Shandong Province Patentee after: QINGDAO AUTOMOTIVE RESEARCH INSTITUTE, JILIN University Country or region after: China Patentee after: Jilin University Address before: 266100 No. 1, Loushan Road, Licang District, Qingdao, Shandong Patentee before: QINGDAO AUTOMOTIVE RESEARCH INSTITUTE, JILIN University Country or region before: China |