CN113002455B - Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile - Google Patents
Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile Download PDFInfo
- Publication number
- CN113002455B CN113002455B CN202110301096.5A CN202110301096A CN113002455B CN 113002455 B CN113002455 B CN 113002455B CN 202110301096 A CN202110301096 A CN 202110301096A CN 113002455 B CN113002455 B CN 113002455B
- Authority
- CN
- China
- Prior art keywords
- domain controller
- bus
- hfac
- lvdc
- hvdc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004044 response Effects 0.000 claims abstract description 10
- 238000003745 diagnosis Methods 0.000 claims abstract description 8
- 230000010365 information processing Effects 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 claims abstract description 5
- QAMFBRUWYYMMGJ-UHFFFAOYSA-N hexafluoroacetylacetone Chemical compound FC(F)(F)C(=O)CC(=O)C(F)(F)F QAMFBRUWYYMMGJ-UHFFFAOYSA-N 0.000 claims abstract 12
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 claims description 14
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 claims description 14
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000009897 systematic effect Effects 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 101100278842 Caenorhabditis elegans dlc-1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a direct current and high frequency alternating current hybrid electric system for an unmanned automobile, which divides the unmanned automobile into five domain controllers according to functions, wherein each domain controller is connected with a central gateway in the unmanned automobile for information interaction, is connected with a diagnosis interface DLC of the unmanned automobile for centralized control and information processing, an HVDC bus is connected with a frequency converter of the unmanned automobile for supplying power to corresponding motor loads, is connected with an LVDC bus through an HVDC/LVDC converter, distributes direct currents with different voltage levels for a chassis domain controller, a vehicle body domain controller and an information entertainment domain controller, simultaneously generates high frequency alternating current through a high frequency inverter HVDC/HFAC and a high frequency inverter LVDC/HFAC which are connected in parallel, and provides alternating current with rapid dynamic response for corresponding automatic driving auxiliary equipment through the HFAC bus. Compared with the existing electronic and electric system of the unmanned automobile, the electric system can distribute the power demand in real time and has the advantages of simple structure, small loss, rapid dynamic response, energy conservation, high efficiency and the like.
Description
Technical Field
The invention relates to the technical field of unmanned automobile electrical systems, in particular to a Direct Current (DC) and High Frequency Alternating Current (HFAC) hybrid electrical system for an unmanned automobile.
Background
With the rapid development of automobile electronic technology, electronic systems and vehicle-mounted devices mounted on unmanned automobiles are increasingly diversified. On the one hand, the number of controllers is continuously increased, so that the cost is increased, the quality of the whole automobile is increased, and in order to realize unmanned intelligent and safe control, the scattered controllers are divided according to the functional domain and integrated into domain controllers with stronger computing capacity, but the real-time control response of the domain controllers has certain internal connection with the voltage level and the direct current or alternating current power supply mode, and the real-time requirement of each domain controller in the unmanned automobile is difficult to realize global reasonable and optimal power. On the other hand, as the power level of the electrical system is improved, the transmission line is increased continuously, the manufacturing cost and weight of the automobile are increased continuously, and the direct current distribution system is excessively lost under the condition of low voltage and high current.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a direct current and high frequency alternating current hybrid electric system for an unmanned automobile, which is communicated with other domain controllers through a central gateway, so that the real-time performance of communication is improved, and the use of communication peripherals is reduced; the direct-current and high-frequency alternating-current hybrid electric system overcomes the defects of a low-voltage high-current electric system, realizes global rationalization and optimization of real-time power demand, and improves the dynamic response speed of the ADAS automatic driving auxiliary domain controller.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: a direct current and high frequency alternating current hybrid electrical system for an unmanned vehicle comprises five domain controllers, three power distribution buses, an HVDC/LVDC converter, a DC/DC converter, a high frequency inverter HVDC/HFAC and a high frequency inverter LVDC/HFAC;
The five domain controllers are functionally divided into: an ADAS automatic driving auxiliary domain controller for improving the safety performance and auxiliary driving capability of the unmanned automobile; the power assembly domain controller is used for optimizing and controlling the power assembly and has the functions of electric intelligent fault diagnosis, intelligent power saving, bus communication and energy supply; a chassis domain controller for adjusting the state and stability control of the unmanned vehicle; a body domain controller for an integrated body electronics system; an infotainment domain controller for human-machine interaction; the five domain controllers are all connected with a central gateway of the unmanned automobile and perform centralized control and information processing by connecting with a diagnosis interface DLC of the unmanned automobile;
The three power distribution buses are respectively an HVDC (high voltage direct current) bus, an LVDC (low voltage direct current) bus and an HFAC (high frequency alternating current) bus, and are used for effectively controlling reactive power and harmonic waves of the power assembly domain controller and providing high frequency alternating current with rapid dynamic response for the ADAS automatic driving auxiliary domain controller; the HVDC bus is connected with the output of a power battery pack on the unmanned automobile, realizes the control of electric energy through a charge and discharge management unit connected with a power assembly domain controller, provides power for the automobile through an engine management system connected with the power assembly domain controller, supplies power for a wheel motor of the unmanned automobile through a frequency converter connected with the power assembly domain controller, and is connected with the LVDC bus through an HVDC/LVDC converter; the LVDC bus is connected with the DC/DC converter and provides different levels of direct current voltages for the chassis domain controller, the vehicle body domain controller and the infotainment domain controller; the HFAC bus is connected with the HVDC bus and the LVDC bus through a high-frequency inverter HVDC/HFAC and a high-frequency inverter LVDC/HFAC which are connected in parallel respectively; the high-frequency inverter HVDC/HFAC is a main high-frequency inverter; the high-frequency inverter LVDC/HFAC is a standby high-frequency inverter and is used for ensuring the power supply capacity of an HFAC bus, enhancing the stability of an ADAS automatic driving auxiliary domain controller and improving the fault tolerance rate of a system.
Furthermore, the ADAS automatic driving auxiliary domain controller is integrated with a RADAR RADAR and a CAMERA CAMERA, senses surrounding environment at any time in the driving process of the automobile, collects data, recognizes static and dynamic objects, and combines navigator map data to perform systematic operation, so that strong information transmission capability and data processing capability are provided, the comfort and safety of the driving of the automobile are improved, and the real-time performance and stability are simultaneously considered;
The power assembly domain controller is integrated with an engine management unit, a frequency converter and a charge and discharge management unit;
The chassis domain controller, the car body domain controller and the infotainment domain controller are integrated with an electronic control unit ECU and an integrated circuit IC.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the unmanned automobile domain controller architecture electrical system is simplified, the number of transmission lines, communication equipment and electronic controllers and the weight of the whole automobile are reduced, and the cost is reduced.
2. In each functional domain, the domain controller is in an absolute central position, so that the control inside each functional block is easy to realize, and the safety and the reliability are enhanced.
3. The HVDC bus and the LVDC bus provide direct current with different voltage levels for each domain controller, so that the stability and the safety of an electrical system are enhanced.
4. The HFAC bus provides high-frequency alternating current for the automatic auxiliary driving system, and improves the dynamic response performance of the unmanned automobile.
5. The LVDC/HFAC used as a spare high-frequency inverter ensures the power supply capability of an HFAC bus, enhances the stability of an ADAS automatic driving auxiliary domain controller and improves the fault tolerance of an electrical system.
6. The hybrid architecture electrical system can reasonably distribute power according to different power requirements of different domain controllers, is easy to realize independent control of the domain controllers, and enhances the reliability of the system.
Drawings
Fig. 1 is a schematic structural diagram of a hybrid electrical system according to the present invention.
Detailed Description
The invention will be further illustrated with reference to specific examples.
As shown in fig. 1, the DC-HFAC hybrid electrical system facing the demand of unmanned power provided by the present embodiment includes five domain controllers, three distribution buses, a high frequency inverter HVDC/HFAC 15, a high frequency inverter LVDC/HFAC 16, an HVDC/LVDC converter 17, and a DC/DC converter 18.
The five domain controllers are functionally divided into: an ADAS automated driving assistance domain controller 3 for improving safety performance and driving assistance capability of an unmanned vehicle; the power assembly domain controller 4 is used for optimizing and controlling the power assembly and has the functions of electric intelligent fault diagnosis, intelligent power saving, bus communication, energy supply and the like; a chassis domain controller 5 for adjusting and stably controlling the state of the unmanned vehicle; a body domain controller 6 for an integrated body electronic system; an infotainment domain controller 7 for human-computer interaction; the five domain controllers are all connected with a central gateway 2 of the unmanned automobile, and perform centralized control and information processing through a diagnosis interface DLC 1 connected with the unmanned automobile.
The three power distribution buses are respectively an HVDC (high voltage direct current) bus 19, an LVDC (low voltage direct current) bus 20 and an HFAC (high frequency alternating current) bus 21, and can effectively control reactive power and harmonic waves of the power assembly domain controller 4 and provide high frequency alternating current with rapid dynamic response for the ADAS automatic driving auxiliary domain controller 3; the HVDC bus 19 is connected with the output of the power battery pack 14 on the unmanned automobile, realizes the control of electric energy through the charge and discharge management unit 13 connected with the power assembly domain controller 4, provides power for the automobile through the engine management 10 connected with the power assembly domain controller 4, supplies power for the wheel motor 12 of the unmanned automobile through the frequency converter 11 connected with the power assembly domain controller 4, and is connected with the LVDC bus 20 through the HVDC/LVDC converter 17; the LVDC bus 20 is connected with the DC/DC converter 18 and provides different levels of direct current voltages for the chassis domain controller 5, the car body domain controller 6 and the infotainment domain controller 7; the HFAC bus 21 is connected to the HVDC bus 19 and the LVDC bus 20 through a high frequency inverter HVDC/HFAC 15 and a high frequency inverter LVDC/HFAC 16 connected in parallel, wherein the high frequency inverter HVDC/HFAC 15 is a main high frequency inverter, and the high frequency inverter LVDC/HFAC 16 is a standby high frequency inverter, by which not only the power supply capability of the HFAC bus 21 is ensured, but also the stability of the ADAS autopilot auxiliary domain controller 3 is enhanced, and the fault tolerance of the electrical system is improved.
The ADAS automatic driving auxiliary domain controller 3 integrates a RADAR RADAR 8 and a CAMERA CAMERA 9, so that the comfort and safety of automobile driving are improved, and meanwhile, the real-time performance and the stability (decision making and planning capabilities) are considered.
The powertrain domain controller 4 is integrated with an engine management 10, a frequency converter 11, a charge-discharge management unit 13, and the like.
The chassis domain controller 5, the body domain controller 6, and the infotainment domain controller 7 are integrated with an ECU (electronic control unit) and an IC (integrated circuit).
In summary, the direct current and high frequency alternating current hybrid electric system for the unmanned automobile disclosed by the invention divides the unmanned automobile into five domain controllers according to functions, each domain controller is connected with a central gateway in the unmanned automobile for information interaction, is connected with a diagnosis interface DLC of the unmanned automobile for centralized control and information processing, an HVDC bus is connected with a frequency converter of the unmanned automobile for supplying power to corresponding motor loads, is connected with an LVDC bus through an HVDC/LVDC converter, distributes direct currents with different voltage levels for a chassis domain controller, a vehicle body domain controller and an information entertainment domain controller, simultaneously generates high frequency alternating current through a high frequency inverter HVDC/HFAC and a high frequency inverter LVDC/HFAC connected in parallel, and provides alternating current with rapid dynamic response for corresponding automatic driving auxiliary equipment through the HFAC bus. Compared with the existing electronic and electric system of the unmanned automobile, the electric system can distribute the power demand in real time, has the advantages of simple structure, small loss, rapid dynamic response, energy conservation, high efficiency and the like, and is worthy of popularization.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (2)
1. The utility model provides a direct current and high frequency alternating current hybrid electrical system towards unmanned car which characterized in that: the system comprises five domain controllers, three distribution buses, an HVDC/LVDC converter, a DC/DC converter, a high-frequency inverter HVDC/HFAC and a high-frequency inverter LVDC/HFAC;
The five domain controllers are functionally divided into: an ADAS automatic driving auxiliary domain controller for improving the safety performance and auxiliary driving capability of the unmanned automobile; the power assembly domain controller is used for optimizing and controlling the power assembly and has the functions of electric intelligent fault diagnosis, intelligent power saving, bus communication and energy supply; a chassis domain controller for adjusting the state and stability control of the unmanned vehicle; a body domain controller for an integrated body electronics system; an infotainment domain controller for human-machine interaction; the five domain controllers are all connected with a central gateway of the unmanned automobile and perform centralized control and information processing by connecting with a diagnosis interface DLC of the unmanned automobile;
The three power distribution buses are respectively an HVDC bus, an LVDC bus and an HFAC bus, and are used for effectively controlling reactive power and harmonic waves of the power assembly domain controller and providing high-frequency alternating current with rapid dynamic response for the ADAS automatic driving auxiliary domain controller; the HVDC bus is connected with the output of a power battery pack on the unmanned automobile, realizes the control of electric energy through a charge and discharge management unit connected with a power assembly domain controller, provides power for the automobile through an engine management system connected with the power assembly domain controller, supplies power for a wheel motor of the unmanned automobile through a frequency converter connected with the power assembly domain controller, and is connected with the LVDC bus through an HVDC/LVDC converter; the LVDC bus is connected with the DC/DC converter and provides different levels of direct current voltages for the chassis domain controller, the vehicle body domain controller and the infotainment domain controller; the HFAC bus is connected with the HVDC bus and the LVDC bus through a high-frequency inverter HVDC/HFAC and a high-frequency inverter LVDC/HFAC which are connected in parallel respectively; the high-frequency inverter HVDC/HFAC is a main high-frequency inverter; the high-frequency inverter LVDC/HFAC is a standby high-frequency inverter and is used for ensuring the power supply capacity of an HFAC bus, enhancing the stability of an ADAS automatic driving auxiliary domain controller and improving the fault tolerance rate of a system.
2. The unmanned vehicle-oriented dc and high frequency ac hybrid electrical system of claim 1, wherein: the ADAS automatic driving auxiliary domain controller is integrated with a RADAR RADAR and a CAMERA CAMERA, senses surrounding environment, collects data and identifies static and dynamic objects at any time in the running process of the automobile, and combines navigator map data to perform systematic operation, so that strong information transmission capability and data processing capability are provided, the comfort and safety of the automobile driving are improved, and the real-time performance and stability are simultaneously considered;
The power assembly domain controller is integrated with an engine management unit, a frequency converter and a charge and discharge management unit;
The chassis domain controller, the car body domain controller and the infotainment domain controller are integrated with an electronic control unit ECU and an integrated circuit IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110301096.5A CN113002455B (en) | 2021-03-22 | 2021-03-22 | Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110301096.5A CN113002455B (en) | 2021-03-22 | 2021-03-22 | Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113002455A CN113002455A (en) | 2021-06-22 |
| CN113002455B true CN113002455B (en) | 2024-06-11 |
Family
ID=76404047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110301096.5A Active CN113002455B (en) | 2021-03-22 | 2021-03-22 | Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113002455B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799747A (en) * | 2021-09-30 | 2021-12-17 | 奇瑞新能源汽车股份有限公司 | Controller of intelligent driving automobile and intelligent driving automobile |
| CN113655708B (en) * | 2021-10-21 | 2022-03-25 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Intelligent vehicle diagonal equal-hop heterogeneous composite redundancy domain architecture |
| CN114454830B (en) * | 2022-01-19 | 2024-01-16 | 东风汽车集团股份有限公司 | Fuel cell automobile network architecture and fuel cell automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013015817A1 (en) * | 2011-07-28 | 2013-01-31 | International Truck Intellectual Property Company, Llc | Motor vehicle with multiple bus power system |
| WO2017088803A1 (en) * | 2015-11-27 | 2017-06-01 | 华南理工大学 | Distributed high frequency ac electrical system for electric automobile |
| CN108001292A (en) * | 2018-01-09 | 2018-05-08 | 华南理工大学 | A kind of electrical system for pure electric vehicle of mixed high-voltage direct current and high-frequency ac |
| CN214823083U (en) * | 2021-03-22 | 2021-11-23 | 华南理工大学 | Direct current and high frequency alternating current hybrid electric system for unmanned vehicle |
-
2021
- 2021-03-22 CN CN202110301096.5A patent/CN113002455B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013015817A1 (en) * | 2011-07-28 | 2013-01-31 | International Truck Intellectual Property Company, Llc | Motor vehicle with multiple bus power system |
| WO2017088803A1 (en) * | 2015-11-27 | 2017-06-01 | 华南理工大学 | Distributed high frequency ac electrical system for electric automobile |
| CN108001292A (en) * | 2018-01-09 | 2018-05-08 | 华南理工大学 | A kind of electrical system for pure electric vehicle of mixed high-voltage direct current and high-frequency ac |
| CN214823083U (en) * | 2021-03-22 | 2021-11-23 | 华南理工大学 | Direct current and high frequency alternating current hybrid electric system for unmanned vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113002455A (en) | 2021-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113002455B (en) | Direct-current and high-frequency alternating-current hybrid electric system for unmanned automobile | |
| CN102390331B (en) | Entire vehicle controller integrated with battery management system for pure electric automobile | |
| CN101379669B (en) | Power source device, electric vehicle mounted with the power source device, and control method for power source device | |
| CN103182951B (en) | Electronlmobil and integrated control system thereof | |
| CN103072492B (en) | Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system | |
| CN201341031Y (en) | Intelligent charging network system of electric automobile | |
| CN205450766U (en) | Integrated battery management and automobile body control function's vehicle control unit | |
| CN109969000B (en) | Range-extending system for pure electric vehicle | |
| CN105539424A (en) | Energy control method of extended range electric vehicle | |
| CN104139708A (en) | Power control power supply system for electric vehicle | |
| CN211107009U (en) | Vehicle-mounted charger integrating high-voltage DC-DC | |
| CN104760591A (en) | Hybrid power comprehensive control system | |
| CN204136909U (en) | A kind of car load communication network system of new-energy automobile | |
| CN104228819A (en) | System and method for controlling DCDC of automotive 48V system | |
| CN214823083U (en) | Direct current and high frequency alternating current hybrid electric system for unmanned vehicle | |
| CN110832727A (en) | Direct current charging equipment | |
| CN103692920A (en) | Network control scheme supporting multiple electric vehicle charging modes | |
| CN210405350U (en) | Network system for commercial vehicle | |
| Yunzheng et al. | Smart vehicle control unit-an integrated BMS and VCU system | |
| CN100999189B (en) | Motor control device for mixed power | |
| CN114530913A (en) | 48V system low-voltage storage battery charging control method and automobile | |
| CN110091855B (en) | 48V light mixing control system of vehicle engine | |
| CN113352952A (en) | Power control integration method and system for hydrogen-electricity hybrid electric vehicle | |
| CN206759079U (en) | A kind of direct-current charging post Cooperating Duplex Computer System | |
| CN206850490U (en) | A kind of intelligent management charging system based on movable charging vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |