CN109515194A - For the charging system of vehicle, charging method and vehicle - Google Patents
For the charging system of vehicle, charging method and vehicle Download PDFInfo
- Publication number
- CN109515194A CN109515194A CN201811417708.1A CN201811417708A CN109515194A CN 109515194 A CN109515194 A CN 109515194A CN 201811417708 A CN201811417708 A CN 201811417708A CN 109515194 A CN109515194 A CN 109515194A
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- China
- Prior art keywords
- vehicle
- voltage
- converter
- power
- conversion element
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- 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.)
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Classifications
-
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of for the charging system of vehicle, charging method and vehicle, the charging system includes: power battery, DC-DC converter, the output end of the power battery is connected with the input terminal of the DC-DC converter, the DC-DC converter includes switching controller and conversion element, the output end of the conversion element is electrically connected with the switching controller, the conversion element activates the switching controller for converting the voltage of the power battery, and the conversion element is suitable for output conversion voltage outward after switching controller activation.Charging system for vehicle of the invention, the high-voltage electricity of power battery convert and is first used to activate switching controller by DC-DC converter, to wake up entire DC-DC converter, the high-voltage electricity of power battery is converted to the low voltage equipment of low pressure electricity output to vehicle again, thus, DC-DC converter is not powered by external power supply, and then reduces the power consumption of DC-DC converter.
Description
Technical field
The present invention relates to technical field of vehicle manufacture, more particularly, to a kind of charging system for vehicle, charging method
With the vehicle with the charging system.
Background technique
As earth environment pollution, petroleum resources are fewer and fewer, future of the electric car as conventional fuel oil automobile, because of it
The advantages that energy-saving and environmental protection, low noise, is increasingly concerned by people.It wherein, include low voltage equipment in the electrical equipment of vehicle, and
The voltage of the power battery output of vehicle is high-voltage electricity, therefore the high-voltage electricity of power battery output needs to be converted to by converter
Low tension could be used for low voltage equipment.In the related technology, converter needs to be activated by external charge power supply,
Can to low voltage equipment export low tension, but by the operating process of external charge power supply power supply trouble, and converter with fill
Electric power electric connection is also easy to produce quiet consumption, and energy loss is larger, and there are improved spaces.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of charging system for vehicle, DC-DC converter is not required to activate switching controller by external power supply, greatly
Ground reduces power consumption.
Charging system according to an embodiment of the present invention for vehicle, the charging system include: power battery, DCDC turns
Parallel operation, the output end of the power battery are connected with the input terminal of the DC-DC converter, and the DC-DC converter includes conversion
Controller and conversion element, the output end of the conversion element are electrically connected with the switching controller, and the conversion element is used for
The voltage of the power battery is converted to activate the switching controller, and the conversion member after switching controller activation
Part is suitable for output outward and converts voltage.
Charging system according to an embodiment of the present invention for vehicle, DC-DC converter carry out the high-voltage electricity of power battery
Conversion and first for activating switching controller to wake up entire DC-DC converter, then the high-voltage electricity of power battery is converted to low
Piezoelectricity is exported to the low voltage equipment of vehicle, and DC-DC converter is not powered by external power supply as a result, and then is reduced DCDC and turned
The power consumption of parallel operation.
Charging system according to an embodiment of the invention for vehicle, the switching controller include being stored with first
The storage medium of computer program, first computer program are used to control the conversion after switching controller activation
Element exports conversion voltage outward.
Charging system according to an embodiment of the invention for vehicle, further includes: battery, the battery and institute
DC-DC converter electrical connection is stated, the battery is electrically connected with the electrical equipment of the vehicle.
Charging system according to an embodiment of the invention for vehicle, further includes: master controller, the master controller
It is connected with the CAN bus of vehicle, and the master controller is electrically connected with the switching controller, and is received in the master controller
The switching controller control conversion element exports conversion electricity outward when having the demand using the conversion voltage to vehicle
Pressure.
Charging system according to an embodiment of the invention for vehicle, further includes: the first detector, first inspection
It surveys device to be used to detect powered devices of vehicle, first detector is electrically connected with the master controller, and described the
One detector detects that a powered devices power on and successfully enables the master controller afterwards.
Charging system according to an embodiment of the invention for vehicle, further includes: the second detector, second inspection
It surveys device to be used to detect the secondary powered devices of vehicle, second detector is electrically connected with the master controller, and described the
Two detectors detect power battery described in the main controller controls after the secondary powered devices meet power-up conditions after
Electric appliance movement.
The invention also provides a kind of charging method for vehicle, the charging method includes: to power in vehicle satisfaction
After condition, the power battery of the vehicle gives DC-DC converter power supply, and the conversion element of the DC-DC converter is by power battery
The voltage of output converted, the conversion voltage of the conversion element output activates the switching controller of the DC-DC converter
Afterwards, is controlled by the conversion element and is exported outward for the use demand of the conversion voltage according to the state of vehicle and the vehicle and turned
Change voltage.
Charging method according to an embodiment of the invention for vehicle, before the vehicle meets power-up conditions, first
The vehicle is waken up, and is powered on after vehicle wake-up to primary powered devices, when a powered devices reality
After now powering on, the state of the secondary powered devices of vehicle is judged, control institute after the secondary powered devices meet power-up conditions
State power battery output voltage.
Charging method according to an embodiment of the invention for vehicle powers on item in the secondary powered devices satisfaction
The relay that the power battery is controlled after part is attracted, and when the relay is in attracting state the power battery to institute
Conversion element output voltage is stated, the conversion element is converted the voltage to be used to activate the switching controller, and
Judged after switching controller activation by state of the master controller to the vehicle, is used when the vehicle has
When the demand of the conversion voltage, the switching controller controls the conversion element and exports the conversion voltage to the vehicle
Electrical equipment.
The present invention has also been proposed a kind of vehicle.
Vehicle according to an embodiment of the present invention is provided with the Charging that vehicle is used for described in any of the above-described kind of embodiment
System.
Possessed advantage is identical compared with the existing technology for the vehicle, the charging method and the charging system,
This is repeated no more.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of charging system according to an embodiment of the present invention；
Fig. 2 is the flow chart of charging method according to an embodiment of the present invention.
Appended drawing reference:
Charging system 100,
Power battery 1, DC-DC converter 2, battery 3, master controller 4.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The charging system 100 according to an embodiment of the present invention for vehicle is described below with reference to Fig. 1, charging system 100
DC-DC converter 2 can convert low tension for the high-voltage electricity that power battery 1 inputs, and for itself use and can be used for activating conversion
Controller electrically activates power consumption caused by switching controller more relative to by external charge power input low pressure, more supernumerary segment
Energy.
As shown in Figure 1, the charging system 100 for vehicle of the embodiment of the present invention includes: power battery 1, DCDC conversion
Device 2.
The output end of power battery 1 is connected with the input terminal of DC-DC converter 2, in this way, power battery 1 can be by the height of itself
Piezoelectricity is exported to DC-DC converter 2, DC-DC converter 2 high-voltage electricity that power battery 1 exports can be converted to low tension be used for it is whole
The low voltage equipment of vehicle uses, and certainly, the high-voltage electricity that power battery 1 exports also can be directly used for the high voltage electric equipment of vehicle
It uses.
DC-DC converter 2 includes switching controller and conversion element.The input of the output end and conversion element of power battery 1
End is connected, and the high-voltage electricity that power battery 1 exports may be output to conversion element, and conversion element is used for the voltage of switching kinetics battery 1,
I.e. the high-voltage electricity that power battery 1 exports can be converted to low tension, the output end and switching controller of conversion element by conversion element
Electrical connection, the low tension after conversion element conversion may be output to switching controller to activate the switching controller, and then wake up
Entire DC-DC converter 2, and conversion element is suitable for output outward and converts voltage after switching controller activation, with to the low of vehicle
Electrical equipment is pressed to export low tension.
It should be noted that power battery 1 by high pressure electricity output to DC-DC converter 2 after, DC-DC converter 2 can will first it is defeated
The high-voltage electricity entered is converted to for activating switching controller after low tension, after switching controller activation, DC-DC converter 2 will after
The high-voltage electricity of continuous input is converted to the low voltage equipment of low pressure electricity output to vehicle.
In other words, after vehicle meets power-up conditions, power battery 1 inputs a high-voltage electricity, conversion to DC-DC converter 2
High-voltage electricity is converted to a low tension by element, and a low pressure electricity output is used to activate by conversion element to switching controller
Switching controller, and after switching controller activation, power battery 1 inputs secondary high-pressure electricity, conversion element to DC-DC converter 2
Secondary high-pressure electricity is converted into secondary low-voltage electricity, and when the electrical equipment of vehicle has the demand using low tension, conversion member
Secondary low-voltage electricity output to low voltage equipment is realized the low-voltage power supply of power battery 1 by part.
Charging system 100 can be converted to low tension by the high-voltage electricity for exporting power battery 1 for activating itself as a result,
Switching controller does not have to through external charge power source active switching controller, in this way, can reduce DC-DC converter 2 with it is external
The power consumption that charge power supply connection generates, saves electric energy, reduces quiet consumption.
Charging system 100 according to an embodiment of the present invention for vehicle, DC-DC converter 2 is by the high pressure of power battery 1
Electricity carries out conversion and first for activating switching controller, to wake up entire DC-DC converter 2, then by the high-voltage electricity of power battery 1
The low voltage equipment of low pressure electricity output to vehicle is converted to, DC-DC converter 2 is not powered by external power supply as a result, in turn
Reduce the power consumption of DC-DC converter 2.
In some embodiments, switching controller includes the storage medium for being stored with the first computer program, and first calculates
Machine program is used for the control conversion element after switching controller activation and exports conversion voltage outward, in this way, switching controller can root
According to the use state control conversion element output conversion voltage of vehicle.In this way, the low voltage equipment in vehicle has using low pressure
When the demand of electricity, conversion element output voltage is to low voltage equipment, thus, it is ensured that charging system 100 can be in time defeated
Low tension out improves the practicability of charging system 100.
In some embodiments, as shown in Figure 1, charging system 100 further includes battery 3, battery 3 and DC-DC converter
2 electrical connections, battery 3 are electrically connected with the electrical equipment of vehicle.In this way, DC-DC converter 2 converts the high-voltage electricity of power battery 1
After low tension, when vehicle is without the demand or smaller use demand for using low tension, the low tension that DC-DC converter 2 is converted can
It being stored in input battery 3, battery 3 can be used as backup power source, to guarantee in 1 failure of power battery, charging system
100 still exportable low tensions, it is safer, practical.
In some embodiments, as shown in Figure 1, further including master controller 4, the CAN bus phase of master controller 4 and vehicle
Even, master controller 4 can obtain the signal of vehicle operating status, as master controller 4 can analyze the low of vehicle by received signal
Electrical equipment is pressed to whether there is the demand using low tension.Master controller 4 is electrically connected with switching controller, and master controller 4 can be with
Signal transmission is carried out between switching controller, and when master controller 4, which receives vehicle, the demand using conversion voltage, conversion
Controller control conversion element exports conversion voltage outward, aloows charging system 100 in time to low pressure electricity consumption as a result,
Equipment provides electric energy.
In some embodiments, as shown in Figure 1, charging system 100 further includes the first detector and the second detector, first
Detector is used to detect a powered devices of vehicle, and a powered devices may include the low pressure electric device of vehicle.First
Detector is electrically connected with master controller 4, and the signal that the first detector can will test is sent to master controller 4, and in the first inspection
Survey device and detect that a powered devices power on and successfully enable master controller 4 afterwards so that master controller 4 to the operating status of vehicle into
Row monitoring.
Second detector is used to detect the secondary powered devices of vehicle, and secondary powered devices include high voltage electric equipment, the
Two detectors can detect whether high voltage electric equipment meets high pressure power up requirement, and the second detector is electrically connected with master controller 4, and
After the second detector detects that secondary powered devices meet power-up conditions, the relay that master controller 4 controls power battery 1 is dynamic
Make, and after the relay of power battery 1 closure, power battery 1 exports high-voltage electricity to DC-DC converter 2, in order to convert member
Part is converted and is used to high-voltage electricity.
The invention also provides a kind of charging methods for vehicle.
Charging method according to an embodiment of the present invention includes:
Before vehicle meets power-up conditions, first vehicle is waken up, and after vehicle wake-up on primary powered devices
Electricity judges the state of the secondary powered devices of vehicle, in secondary powered devices satisfaction after a powered devices realization powers on
The relay that power battery 1 is controlled after electric condition is attracted, and when relay is in attracting state power battery 1 to conversion element
Output voltage.In this way, controlling 1 output voltage of power battery, after secondary powered devices meet power-up conditions in order to convert member
Part converts high-voltage electricity.
Further, after vehicle meets power-up conditions, the power battery 1 of vehicle is powered to DC-DC converter 2, power electric
By high pressure electricity output to DC-DC converter 2, the conversion element of DC-DC converter 2 carries out the voltage of the output of power battery 1 in pond 1
The high-voltage electricity of power battery 1 is converted to low tension by conversion, conversion element, and the conversion voltage of conversion element output is for activating
The switching controller of DC-DC converter 2, and after the activation of the switching controller of DC-DC converter 2, shape of the master controller 4 to vehicle
State is judged have to the use demand for converting voltage, switching controller control conversion member when master controller 4 analyzes vehicle
Part exports conversion voltage outward, and then exports conversion voltage to the electrical equipment of vehicle.
The specific steps of the charging method of the embodiment of the present invention are described below with reference to Fig. 2:
1) vehicle is waken up.
2) after vehicle wake-up, low pressure is carried out to low voltage equipment and is powered on, carry out judging whether to power on after low pressure powers on
Success, if not powering on success, re-starts low pressure and powers on；If powering on success, master controller 4 wakes up and carries out whole vehicle state
Judgement.
3) carry out whole vehicle state judgement when, if high voltage electric equipment is unsatisfactory for the condition that high pressure powers on, return again into
Row master controller 4 wakes up and judges the state of vehicle；If high voltage electric equipment meets the condition that high pressure powers on, master controller 4
The relay for controlling power battery 1 carries out closed procedure.
If 4) the non-normally closed of relay offers a high price and presses electric fault, terminate；If relay normally closed, and be in
Closed state, power battery 1 export high-voltage electricity to DC-DC converter 2, and DC-DC converter 2 receives the high-voltage electricity of power battery 1
Afterwards, high-voltage electricity is converted into internal low-voltage electricity to wake up switching controller.
5) after switching controller wakes up, judge that there are low pressure to make in vehicle by state of the master controller 4 to vehicle
When can request that, high-voltage electricity is converted to low pressure electricity output to the low voltage equipment of vehicle by DC-DC converter 2, and in output voltage
Terminate after the completion.
In this way, the high-voltage electricity of power battery 1 can be converted to low tension and is used for by DC-DC converter 2 during charging
Switching controller inside waking up, and after switching controller wake-up, DC-DC converter 2 can be by the low pressure electricity output of conversion to whole
The low voltage equipment of vehicle, DC-DC converter 2 does not have to external power supply as a result, can reduce the quiet consumption of DC-DC converter 2, saves electricity
Energy.
The present invention has also been proposed a kind of vehicle.
Vehicle according to an embodiment of the present invention is provided with the charging system 100 of any of the above-described kind of embodiment, DC-DC converter
The high-voltage electricity of power battery 1 convert and can first be used to activate switching controller by 2, to wake up entire DC-DC converter 2, then
The high-voltage electricity of power battery 1 is converted to the low voltage equipment of low pressure electricity output to vehicle, DC-DC converter 2 is obstructed as a result,
External power supply power supply is crossed, and then reduces the power consumption of DC-DC converter 2, promotes the practical performance of vehicle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of charging system for vehicle, which is characterized in that the charging system includes: power battery, DC-DC converter,
The output end of the power battery is connected with the input terminal of the DC-DC converter, and the DC-DC converter includes switching controller
And conversion element, the output end of the conversion element are electrically connected with the switching controller, the conversion element is for converting institute
The voltage of power battery is stated to activate the switching controller, and the conversion element is suitable for after switching controller activation
Output conversion voltage outward.
2. the charging system according to claim 1 for vehicle, which is characterized in that the switching controller includes storage
There is the storage medium of the first computer program, first computer program is used to control institute after switching controller activation
It states conversion element and exports conversion voltage outward.
3. the charging system according to claim 1 for vehicle, which is characterized in that further include: battery, the electric power storage
Pond is electrically connected with the DC-DC converter, and the battery is electrically connected with the electrical equipment of the vehicle.
4. the charging system according to any one of claim 1-3 for vehicle, which is characterized in that further include: master control
Device processed, the master controller are connected with the CAN bus of vehicle, and the master controller is electrically connected with the switching controller, and
When the master controller, which receives vehicle, the demand using the conversion voltage, the switching controller controls the conversion
Element exports conversion voltage outward.
5. the charging system according to claim 4 for vehicle, which is characterized in that further include: the first detector, it is described
First detector is used to detect a powered devices of vehicle, and first detector is electrically connected with the master controller, and
First detector detects that a powered devices power on and successfully enables the master controller afterwards.
6. the charging system according to claim 4 for vehicle, which is characterized in that further include: the second detector, it is described
Second detector is used to detect the secondary powered devices of vehicle, and second detector is electrically connected with the master controller, and
Second detector detects power electric described in the main controller controls after the secondary powered devices meet power-up conditions
The actuating of relay in pond.
7. a kind of charging method for vehicle, which is characterized in that the charging method includes: to meet power-up conditions in vehicle
Afterwards, the power battery of the vehicle gives DC-DC converter power supply, and the conversion element of the DC-DC converter is by the defeated of power battery
Voltage out is converted, after the conversion voltage of the conversion element output activates the switching controller of the DC-DC converter,
The conversion element is controlled to the use demand of the conversion voltage according to the state of vehicle and the vehicle and exports conversion outward
Voltage.
8. the charging method according to claim 7 for vehicle, which is characterized in that meet power-up conditions in the vehicle
Before, first the vehicle is waken up, and is powered on after vehicle wake-up to primary powered devices, when described once power on sets
After standby realization powers on, judges the state of the secondary powered devices of vehicle, controlled after the secondary powered devices meet power-up conditions
Make the power battery output voltage.
9. the charging method according to claim 8 for vehicle, which is characterized in that meet in the secondary powered devices
The relay that the power battery is controlled after power-up conditions is attracted, and the power electric when the relay is in attracting state
To the conversion element output voltage, the conversion element is converted the voltage to be used to activate the conversion and control in pond
Device, and judged after switching controller activation by state of the master controller to the vehicle, when the vehicle has
When having the demand using the conversion voltage, the switching controller controls the conversion element and exports the conversion voltage to institute
State the electrical equipment of vehicle.
10. a kind of vehicle, which is characterized in that be provided with the charging system of any of claims 1-6 for vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417708.1A CN109515194A (en) | 2018-11-26 | 2018-11-26 | For the charging system of vehicle, charging method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417708.1A CN109515194A (en) | 2018-11-26 | 2018-11-26 | For the charging system of vehicle, charging method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109515194A true CN109515194A (en) | 2019-03-26 |
Family
ID=65778892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811417708.1A Pending CN109515194A (en) | 2018-11-26 | 2018-11-26 | For the charging system of vehicle, charging method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109515194A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080239A (en) * | 2016-07-01 | 2016-11-09 | 北京新能源汽车股份有限公司 | The low tension battery charge control method of electric vehicle and electric vehicle |
| US20170317527A1 (en) * | 2016-04-29 | 2017-11-02 | Hewlett Packard Enterprise Development Lp | Uninterruptible power supply including battery modules connected directly to direct current-alternating current inverter |
| CN207354050U (en) * | 2017-08-02 | 2018-05-11 | 郑州宇通客车股份有限公司 | DC/DC converters wake up system, vehicle low-voltage power supply system and vehicle |
-
2018
- 2018-11-26 CN CN201811417708.1A patent/CN109515194A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170317527A1 (en) * | 2016-04-29 | 2017-11-02 | Hewlett Packard Enterprise Development Lp | Uninterruptible power supply including battery modules connected directly to direct current-alternating current inverter |
| CN106080239A (en) * | 2016-07-01 | 2016-11-09 | 北京新能源汽车股份有限公司 | The low tension battery charge control method of electric vehicle and electric vehicle |
| CN207354050U (en) * | 2017-08-02 | 2018-05-11 | 郑州宇通客车股份有限公司 | DC/DC converters wake up system, vehicle low-voltage power supply system and vehicle |
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