CN113335069A - Control charging method of pure electric bus whole vehicle controller - Google Patents
Control charging method of pure electric bus whole vehicle controller Download PDFInfo
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- CN113335069A CN113335069A CN202110787749.5A CN202110787749A CN113335069A CN 113335069 A CN113335069 A CN 113335069A CN 202110787749 A CN202110787749 A CN 202110787749A CN 113335069 A CN113335069 A CN 113335069A
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- vehicle
- pure electric
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- 238000000034 method Methods 0.000 title claims abstract description 26
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000011217 control strategy Methods 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000006399 behavior Effects 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
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control charging method of a pure electric bus whole vehicle controller, which comprises the following steps: during charging, firstly, the DCDC and the PTC are closed, the driving motor is closed, the relay is disconnected when the battery current is detected to be smaller than the maximum allowable current required by the disconnection of the relay, a charging preparation completion signal is sent to the vehicle control unit and the instrument panel at the moment, the vehicle control unit responds to the allowable signal, when the charging current is smaller than the minimum charging current set by the system, the charging relay is disconnected and a charging completion signal is sent to the vehicle control unit and the instrument panel, the vehicle control unit responds to complete the whole charging process, and the vehicle control unit and the safety controller monitor the charging process. The invention utilizes the vehicle control unit to control the charging process of the pure electric bus, and the vehicle control unit and the safety controller monitor the charging process in the charging process, thereby preventing charging accidents from happening.
Description
Technical Field
The invention relates to a control charging method of a pure electric bus whole vehicle controller, and belongs to the technical field of electric vehicle battery charging.
Background
The vehicle control unit is a core control part of the pure electric vehicle, is a brain of the pure electric vehicle, controls all behaviors of the vehicle in the driving process, and is a guarantee of vehicle safety. The mature vehicle controller can improve the driving performance of the vehicle and perfect the energy management of the vehicle. And all that is ensured is the whole vehicle control strategy and flow. The vehicle control unit is divided into hardware and software, the hardware is equivalent to the physical component of the whole vehicle control unit, and the control strategy is the neural organization of the brain to guide the body part to make all actions. A set of perfect whole car control strategy can accord with driver's operation demand as far as, satisfies the driving needs, can guarantee passenger's safety as far as moreover, improves pure electric vehicles ' continuation of the journey mileage, makes pure electric more intelligent anyhow.
The Vehicle Control Unit (VCU) is a core control component of the whole pure electric vehicle, and in brief, the VCU of the pure electric vehicle is equivalent to a housekeeper of the pure electric vehicle, and is responsible for receiving signals of other controllers and electric appliances on the pure electric vehicle, processing the signals, obtaining a conclusion through calculation, transmitting the instructions to corresponding electric appliance modules through a CAN bus, and then performing corresponding actions by the other controllers or the electric appliances according to the obtained commands.
With the continuous development of automobile science and technology, the term "integration" is also used more on the automobile, and the integration of the circuit provides the most favorable premise for the development of all controllers, even in the current pure electric automobile, a whole vehicle controller and a motor controller are integrated into one control box, and more controllers are respectively used for independently and effectively controlling each power utilization system, such as an MCU (motor controller), a BMS (battery management system) and the like. The vehicle controller is used as an upper-layer control unit of the controllers, and the vehicle controller controls the vehicle by receiving signals, processing the signals and outputting the signals. Each controller plays its own role, and finally, the whole vehicle has longer endurance mileage, safer control and more intellectualization.
At present, whether public charging station or private fill electric pile, the condition of outdoor charging is all very common. However, in case of extreme weather, such as rainy weather, the charging gun may enter a small amount of rain as an accessory with more electronic components, and the charger may be easily short-circuited and burned out during charging. In addition, when the vehicle is stopped, i.e. charged or overloaded, especially when the ambient temperature is too high, the battery is in an operating state and continuously generates heat energy because of long-time running. When the automobile is driven, the temperature of the battery reaches more than 70 ℃, and at the moment, if the automobile is immediately charged after being stopped, the battery is dehydrated, the risk of battery bulge is aggravated, and the service life of the battery is further shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the charging control method of the vehicle control unit of the pure electric bus is provided, the vehicle control unit and the safety controller monitor charging of the vehicle control unit in the charging process, charging accidents can be prevented, and the problems in the prior art are solved.
The technical scheme adopted by the invention is as follows: a control charging method of a pure electric bus whole vehicle controller is provided, which comprises the following steps: during charging, firstly, the DCDC and the PTC are closed, the driving motor is closed, the relay is disconnected when the battery current is detected to be smaller than the maximum allowable current required by the disconnection of the relay, a charging preparation completion signal is sent to the vehicle control unit and the instrument panel at the moment, the vehicle control unit responds to the allowable signal, when the charging current is smaller than the minimum charging current set by the system, the charging relay is disconnected and a charging completion signal is sent to the vehicle control unit and the instrument panel, the vehicle control unit responds to complete the whole charging process, and the vehicle control unit and the safety controller monitor the charging process.
The invention has the beneficial effects that: compared with the prior art, the charging process of the pure electric bus is controlled by the vehicle control unit, the vehicle control unit and the safety controller monitor the charging process in the charging process, and charging accidents can be prevented.
Drawings
FIG. 1 is a control charging logic relation diagram of a pure electric bus vehicle controller;
fig. 2 is a control charging flow chart of the vehicle control unit of the pure electric bus.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-2, a method for controlling charging of a vehicle controller of a pure electric bus includes: when charging, firstly turning off DCDC (a device for converting a direct current power supply of a certain voltage level into a direct current power supply of other voltage levels, also called a vehicle-mounted DC/DC converter, which can convert a high-voltage direct current of a power battery into a low-voltage direct current to supply power to other low-voltage equipment on a vehicle) and PTC (a heating device for the power battery, also called a heater), turning off a driving motor, turning off a relay (a main positive relay in a power battery pack) when detecting that the current of the battery is less than the maximum allowable current required by the relay to be turned off, sending a charging preparation completion signal to a vehicle controller and an instrument panel at the moment, responding the allowable signal by the vehicle controller, turning off a charging relay when the charging current is less than the minimum charging current set by a system, sending a charging completion signal to the vehicle controller and the instrument panel, and responding by the vehicle controller to complete the whole charging process, and in the charging process, the vehicle control unit and the safety controller monitor the vehicle control unit and the safety controller. The charging process of the whole vehicle is shown in the attached figure 2.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (1)
1. A control charging method of a pure electric bus controller is characterized in that: the method comprises the following steps: during charging, firstly, the DCDC and the PTC are closed, the driving motor is closed, the relay is disconnected when the battery current is detected to be smaller than the maximum allowable current required by the disconnection of the relay, a charging preparation completion signal is sent to the vehicle control unit and the instrument panel at the moment, the vehicle control unit responds to the allowable signal, when the charging current is smaller than the minimum charging current set by the system, the charging relay is disconnected and a charging completion signal is sent to the vehicle control unit and the instrument panel, the vehicle control unit responds to complete the whole charging process, and the vehicle control unit and the safety controller monitor the charging process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110787749.5A CN113335069A (en) | 2021-07-13 | 2021-07-13 | Control charging method of pure electric bus whole vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110787749.5A CN113335069A (en) | 2021-07-13 | 2021-07-13 | Control charging method of pure electric bus whole vehicle controller |
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| Publication Number | Publication Date |
|---|---|
| CN113335069A true CN113335069A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110787749.5A Pending CN113335069A (en) | 2021-07-13 | 2021-07-13 | Control charging method of pure electric bus whole vehicle controller |
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| Country | Link |
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| CN (1) | CN113335069A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004215366A (en) * | 2002-12-27 | 2004-07-29 | Sanyo Electric Co Ltd | Battery controller for electric vehicle |
| CN101570181A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Hybrid vehicle battery fault management system and management method thereof |
| KR20140016660A (en) * | 2012-07-30 | 2014-02-10 | 현대자동차주식회사 | Active control system for low dc/dc converter in an electric vehicle |
| CN106740227A (en) * | 2017-01-13 | 2017-05-31 | 安徽工程大学 | A kind of electronic railway carriage or compartment lorry battery bag control system and method |
| CN107139778A (en) * | 2017-05-25 | 2017-09-08 | 天津恒天新能源汽车研究院有限公司 | A kind of vehicle control system of pure electric vehicle |
| CN109501636A (en) * | 2018-12-10 | 2019-03-22 | 山东国金汽车制造有限公司 | A kind of electric vehicle prevents small storage battery feed method when charging |
| CN111409503A (en) * | 2020-04-03 | 2020-07-14 | 苏州盱酋汽车科技有限公司 | Power system of miniature electric automobile and control method thereof |
| CN112590616A (en) * | 2021-01-06 | 2021-04-02 | 东风汽车股份有限公司 | High-voltage loop of power battery of electric automobile and control method thereof |
-
2021
- 2021-07-13 CN CN202110787749.5A patent/CN113335069A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004215366A (en) * | 2002-12-27 | 2004-07-29 | Sanyo Electric Co Ltd | Battery controller for electric vehicle |
| CN101570181A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Hybrid vehicle battery fault management system and management method thereof |
| KR20140016660A (en) * | 2012-07-30 | 2014-02-10 | 현대자동차주식회사 | Active control system for low dc/dc converter in an electric vehicle |
| CN106740227A (en) * | 2017-01-13 | 2017-05-31 | 安徽工程大学 | A kind of electronic railway carriage or compartment lorry battery bag control system and method |
| CN107139778A (en) * | 2017-05-25 | 2017-09-08 | 天津恒天新能源汽车研究院有限公司 | A kind of vehicle control system of pure electric vehicle |
| CN109501636A (en) * | 2018-12-10 | 2019-03-22 | 山东国金汽车制造有限公司 | A kind of electric vehicle prevents small storage battery feed method when charging |
| CN111409503A (en) * | 2020-04-03 | 2020-07-14 | 苏州盱酋汽车科技有限公司 | Power system of miniature electric automobile and control method thereof |
| CN112590616A (en) * | 2021-01-06 | 2021-04-02 | 东风汽车股份有限公司 | High-voltage loop of power battery of electric automobile and control method thereof |
Non-Patent Citations (1)
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Application publication date: 20210903 |
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