CN107539148A - The dynamical system and electric automobile of electric automobile - Google Patents
The dynamical system and electric automobile of electric automobile Download PDFInfo
- Publication number
- CN107539148A CN107539148A CN201710753667.2A CN201710753667A CN107539148A CN 107539148 A CN107539148 A CN 107539148A CN 201710753667 A CN201710753667 A CN 201710753667A CN 107539148 A CN107539148 A CN 107539148A
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- Prior art keywords
- dynamical system
- controlling switch
- current
- limiting resistance
- battery
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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
Abstract
The disclosure is directed to a kind of dynamical system of electric automobile and electric automobile, belongs to electric vehicle engineering field.The dynamical system includes battery, the first controlling switch, the second controlling switch and current-limiting resistance, wherein：The first end with first controlling switch, the first end of second controlling switch are electrically connected with the positive pole of the battery respectively, and the second end of first controlling switch is electrically connected with the first end of the current-limiting resistance；The first end of second end of the current-limiting resistance and the second end of second controlling switch with the delivery outlet of the dynamical system is electrically connected with；Second end of the negative pole of the battery and the delivery outlet is electrically connected with；The current-limiting resistance is thermistor.Using the disclosure, the battery in the dynamical system first carries out pre-arcing to load carries out regular picture to load again to avoid load transients from being damaged by impacting with high pressure, so as to protect load.
Description
Technical field
The disclosure is directed to automobile technical field, especially with respect to the dynamical system and electric automobile of a kind of electric automobile.
Background technology
In the case where energy crisis and environmental pollution are increasingly severe, electric automobile is with its energy-conservation, low noise and zero-emission
The advantage such as put to be rapidly developed.Electric automobile is powered to the load by the battery in dynamical system, wherein in dynamical system
Battery can be accumulator cell assembly.There is farther enforcement mileage, faster travel speed, dynamical system in order to pursue electric automobile
The voltage of the battery of system also more and more higher, such as between 280 volts to 400 volts.
During the disclosure is realized, inventor has found problems with least be present：
When user starts electric automobile, high pressure is added in load by the electric power system of dynamical system suddenly, makes load
It is often subject to impacting with high pressure and damages.
The content of the invention
In order to overcome present in correlation technique when user starts electric automobile, high pressure is added in by dynamical system suddenly
In load, the problem of making load be often subject to impacting with high pressure and damage, present disclose provides a kind of dynamical system of electric automobile
And electric automobile.The technical scheme is as follows：
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of dynamical system of electric automobile, the dynamical system bag
Battery, the first controlling switch, the second controlling switch and current-limiting resistance are included, wherein：
The positive pole of the battery first end with first controlling switch, the first end of second controlling switch respectively
It is electrically connected with, the second end of first controlling switch is electrically connected with the first end of the current-limiting resistance；
Second end of the current-limiting resistance and the second end of second controlling switch are defeated with the dynamical system
The first end of outlet is electrically connected with；
Second end of the negative pole of the battery and the delivery outlet is electrically connected with；
The current-limiting resistance is thermistor.
Optionally, the dynamical system also includes the 3rd controlling switch, and the 3rd controlling switch is arranged on the battery
Negative pole and the delivery outlet the second end between circuit on.
Optionally, when the current-limiting resistance works under normal temperature environment, its resistance value becomes in the range of preset resistive value
Change.
Optionally, the preset resistive value scope is 20 ohm to 100 ohm.
Optionally, in high temperature environments, its maximum resistance is 1000 ohm to the current-limiting resistance.
Optionally, the size of the current-limiting resistance is pre-set dimension.
Optionally, the pre-arcing time of the dynamical system is in preset time range.
Optionally, the preset time range is 0.5 second to 3 seconds.
Optionally, first controlling switch, second controlling switch and the 3rd controlling switch are relay
Device.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of electric automobile, the electric automobile include first aspect
Described dynamical system.
The technical scheme provided by this disclosed embodiment can include the following benefits：
In the disclosed embodiments, the dynamical system of electric automobile includes battery, the first controlling switch, the second controlling switch
And current-limiting resistance, the first controlling switch are in parallel after being connected with current-limiting resistance with the second controlling switch, battery is connected to negative
On the power supply circuit for carrying power supply.When battery powers to the load, the first controlling switch is connected, and the second controlling switch disconnects, battery
Pre-arcing is carried out to load；After pre-arcing terminates, the first controlling switch is disconnected, and the second controlling switch is connected, and battery is to load
Regular picture, exercise electric automobile.So, the electric power system of dynamical system first carries out pre-arcing to load, then to negative
Row regular picture is loaded into, load transients can be avoided to be damaged by impacting with high pressure, so as to protect load.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.In the accompanying drawings：
Fig. 1 is a kind of structural representation of dynamical system according to an exemplary embodiment；
Fig. 2 is a kind of structural representation of dynamical system according to an exemplary embodiment.
Marginal data
1st, battery 2, the first controlling switch
3rd, the second controlling switch 4, current-limiting resistance
5th, delivery outlet 6, load
7th, electric capacity 8, the 3rd controlling switch
Pass through above-mentioned accompanying drawing, it has been shown that the clear and definite embodiment of the disclosure, will hereinafter be described in more detail.These accompanying drawings
It is not intended to limit the scope of disclosure design by any mode with word description, but is by reference to specific embodiment
Those skilled in the art illustrate the concept of the disclosure.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Embodiment one
The exemplary embodiment of the disclosure one provides a kind of dynamical system of electric automobile, as shown in figure 1, the dynamical system
Including battery 1, the first controlling switch 2, the second controlling switch 3 and current-limiting resistance 4, wherein：The positive pole of battery 1 is controlled with first respectively
First end, the first end of the second controlling switch 3 of system switch 2 are electrically connected with, the second end of the first controlling switch 2 and current-limiting resistance
4 first end is electrically connected with；Second end of current-limiting resistance 4 and the second end of the second controlling switch 3 are defeated with dynamical system
The first end of outlet 5 is electrically connected with；The negative pole of battery 1 is electrically connected with the second end of delivery outlet 5；Current-limiting resistance 4 is temperature-sensitive electricity
Resistance.
Wherein, dynamical system generally refers to the circuit system that the battery bag of electric automobile is powered to load 6.Power
Each load 6 that the delivery outlet 5 of system is used in connecting electric automobile, each load 6 are electrical with the delivery outlet 5 of dynamical system
Connection.Battery 1 can be the battery for having charging/discharging function.Current-limiting circuit 4 is also referred to as pre-charge resistance, is mainly used in reducing and moves
Electric current in Force system in circuit.
In force, in order to further protect load 6, each load 6 in electric automobile is connected in parallel with a capacitor 7.Such as
Shown in Fig. 1, battery 1, the first controlling switch 2, current-limiting resistance 4, load 6 and electric capacity 7 form a closed-loop path, are properly termed as pre-
Discharge circuit；Battery 1, the second controlling switch 3, load 6 and electric capacity 7 form a closed-loop path, are properly termed as regular picture electricity
Road.Wherein, pre-arcing process that is to say that pair electric capacity 7 being in parallel with each load 6 charges, when all electric capacity 7 all fills
After complete electricity, pre-arcing terminates, and battery 1 is to 6 normal power supplies of each load, and therefore, the pre-arcing time depends on having maximum electricity
The electric capacity 7 of capacity, the capacitance for the electric capacity 7 being generally in parallel with electric machine controller are maximum.
Based on described above, the circuits that dynamical system is powered to load 6 include pre-arcing circuit and regular picture
Circuit.When starting electric automobile, the first controlling switch 2 in pre-arcing circuit is connected, and the voltage of dynamical system by putting in advance
Circuit 6 is powered to load, is charged for electric capacity 7, after electric capacity 7 completes charging, the in regular picture circuit
Two controlling switches 3 are connected, meanwhile, the first controlling switch 2 in pre-arcing circuit is disconnected, and battery 1 is normally supplied load 6
Electricity, electric automobile can be with normally travels.
So, during the battery 1 in the dynamical system of electric automobile is powered to each load 6, first to each
Load 6 carries out pre-arcing for a period of time, is usually no more than 3 seconds, then carries out regular pictures to each load 6 again, not only can be with
Battery 1 is provided stable voltage to each load 6, but also can avoid high pressure is added in into 6 both ends of each load suddenly and lead
Cause the damage of load 6.
When the use of current-limiting resistance 4 ceramic resistor of the prior art, user's frequent starting electric automobile, current-limiting resistance 4
Caused heat has little time radiating and accumulated in current-limiting resistance 4, can cause the damage of current-limiting resistance 4, and the longevity is used so as to reduce it
Life.When current-limiting resistance 4 uses ceramic resistor of the prior art, and load 6 occurs short-circuit, make electric current in pre-arcing circuit not
By electric capacity 7, electric capacity 7 is constantly in uncharged state, causes pre-charge process to be continued for, and current-limiting resistance 4 is produced largely
Heat and damage current-limiting resistance.
And the current-limiting resistance 4 in the present embodiment uses PTC (Positive Temperature Coefficient, positive temperature
Spend coefficient) thermistor.PTC thermistor is a kind of semiconductor resistor with temperature sensitivity, more than certain temperature (such as
Curie temperature) when, its resistance value is with rise the increasing in step evolution of temperature.When user's frequent starting electric automobile, or
When person's load 6 occurs short-circuit, although current-limiting resistance 4 can also produce heat, the resistance value of current-limiting resistance 4 can be with the liter of temperature
It is high also to become big, when the resistance increase of current-limiting resistance 4, the pre-arcing time can be extended, damage will not be produced to current-limiting resistance 4.
Therefore, in the present embodiment, the temperature rise even if in current-limiting resistance 4 will not also damage current-limiting resistance 4, so as to be somebody's turn to do
The service life of current-limiting resistance 4 in dynamical system is longer.
Optionally, because the magnitude of voltage in battery 1 is higher, generally between 200 volts to 400 volts, in order to user's
Safety, corresponding structure can be that dynamical system also includes the 3rd controlling switch 8, as shown in Fig. 2 the 3rd controlling switch 8 is set
On circuit between the negative pole of battery 1 and the second end of delivery outlet 5.
In force, during dynamical system carries out pre-arcing to load 6, the first controlling switch 2 is opened with the 3rd control
Close 8 to connect, the second controlling switch 3 disconnects, and the battery 1 in dynamical system carries out pre-arcing to load 6, and now electric automobile is not also
It can exercise, electric capacity 7 is charged.After electric capacity 7 is completed to charge, the second controlling switch 3 is connected, meanwhile, the first control is opened
Close 2 to disconnect, battery 1 carries out regular picture to load 6, and now, electric automobile can be with normally travel.Wherein, battery 1 is to load 6
Carry out pre-arcing process and normal discharge, the 3rd controlling switch 8 are constantly in on-state.
Optionally, the connecting and disconnecting of the first controlling switch 2, the second controlling switch 3 and the 3rd controlling switch 8 pass through electricity
Signal controls, and corresponding structure can be, the first controlling switch 2, the second controlling switch 3 and the 3rd controlling switch 8 be after
Electrical equipment.
Optionally, between normal temperature range, its resistance value changes current-limiting resistance 4 in the range of preset resistive value.For example,
When the temperature in current-limiting resistance 4 is when between subzero 30 degrees Celsius to 55 degrees Celsius, preset resistive value scope can be 20 ohm extremely
Change between 100 ohm, so can be by pre-arcing time control within the scope of proper.
Optionally, for current-limiting resistance 4 under higher temperature environment, its maximum resistance value is 1000 ohm, can be kept away
Exempt from current-limiting resistance 4 as temperature raises, the unconfined increase of its resistance value, cause the pre-arcing time longer.So, the dynamical system
The pre-arcing time of system is in preset time range, for example, the preset time range is 0.5 second to 3 seconds.
Optionally, usual resistance value is related to the size of current-limiting resistance 4, and accordingly, the size of current-limiting resistance 4 is default chi
Very little, the pre-set dimension is related to the resistance value of current-limiting resistance 4, for example, its full-size can be, maximum length is 100 millimeters,
Breadth Maximum is 20 millimeters, and maximum height is 20 millimeters.
In the disclosed embodiments, the dynamical system of electric automobile includes battery, the first controlling switch, the second controlling switch
And current-limiting resistance, the first controlling switch are in parallel after being connected with current-limiting resistance with the second controlling switch, battery is connected to negative
In the supply line for carrying power supply.So, when battery powers to the load, the first controlling switch is connected, and the second controlling switch disconnects,
Battery carries out pre-arcing to load；After pre-arcing terminates, the first controlling switch is disconnected, and the second controlling switch is connected, battery pair
Regular picture is loaded, exercises electric automobile.Battery in this dynamical system first carries out pre-arcing to load and carried out again
Regular picture can avoid load from being damaged by impacting with high pressure, so as to protect load.
Embodiment two
The disclosure additionally provides a kind of electric automobile, and the electric automobile includes the dynamical system described in embodiment one, as
Described in embodiment one, the dynamical system includes battery, the first controlling switch, the second controlling switch and current-limiting resistance, the first control
Switch is in parallel after being connected with current-limiting resistance with the second controlling switch, is connected in the supply line that battery powers to the load.
So, when battery powers to the load, the first controlling switch is connected, and the second controlling switch disconnects, and battery is put in advance to load
Electricity；After pre-arcing terminates, the first controlling switch is disconnected, and the second controlling switch is connected, and battery makes electronic to loading regular picture
Automobile can exercise.So, the battery in dynamical system first carries out pre-arcing to load, then carries out regular picture to load, can
To avoid load transients from being damaged by impacting with high pressure, so as to protect load.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice disclosure disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by above
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (10)
1. a kind of dynamical system of electric automobile, it is characterised in that the dynamical system includes battery, the first controlling switch, the
Two controlling switches and current-limiting resistance, wherein：
The first end with first controlling switch, the first end of second controlling switch are electrical respectively for the positive pole of the battery
Connection, the second end of first controlling switch are electrically connected with the first end of the current-limiting resistance；
The delivery outlet of second end of the current-limiting resistance and the second end of second controlling switch with the dynamical system
First end be electrically connected with；
Second end of the negative pole of the battery and the delivery outlet is electrically connected with；
The current-limiting resistance is thermistor.
2. dynamical system according to claim 1, it is characterised in that the dynamical system also includes the 3rd controlling switch,
3rd controlling switch is arranged on the circuit between the negative pole of the battery and the second end of the delivery outlet.
3. dynamical system according to claim 1, it is characterised in that the current-limiting resistance works under normal temperature environment
When, its resistance value changes in the range of preset resistive value.
4. dynamical system according to claim 3, it is characterised in that the preset resistive value scope is 20 ohm to 100 Europe
Nurse.
5. dynamical system according to claim 1, it is characterised in that in high temperature environments, it is maximum for the current-limiting resistance
Resistance value is 1000 ohm.
6. dynamical system according to claim 1, it is characterised in that the size of the current-limiting resistance is pre-set dimension.
7. according to the dynamical system described in claim any one of 1-6, it is characterised in that the pre-arcing time of the dynamical system
In preset time range.
8. dynamical system according to claim 7, it is characterised in that the preset time range is 0.5 second to 3 seconds.
9. according to the dynamical system described in claim any one of 2-6, it is characterised in that first controlling switch, described
Two controlling switches and the 3rd controlling switch are relay.
10. a kind of electric automobile, it is characterised in that the electric automobile includes the dynamical system described in claim any one of 1-9
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753667.2A CN107539148A (en) | 2017-08-28 | 2017-08-28 | The dynamical system and electric automobile of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753667.2A CN107539148A (en) | 2017-08-28 | 2017-08-28 | The dynamical system and electric automobile of electric automobile |
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| CN107539148A true CN107539148A (en) | 2018-01-05 |
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| CN201710753667.2A Pending CN107539148A (en) | 2017-08-28 | 2017-08-28 | The dynamical system and electric automobile of electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641246A (en) * | 2020-07-06 | 2020-09-08 | 中车青岛四方机车车辆股份有限公司 | Storage battery safety protection circuit, storage battery control method and device and train |
| CN112542873A (en) * | 2020-12-16 | 2021-03-23 | 中车永济电机有限公司 | Charging and discharging device |
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| CN102390279A (en) * | 2011-09-21 | 2012-03-28 | 奇瑞汽车股份有限公司 | Safe control loop of electric automobile |
| CN205141425U (en) * | 2015-11-20 | 2016-04-06 | 东风汽车股份有限公司 | High-voltage distribution box for pure electric light bus |
| CN205523742U (en) * | 2016-02-03 | 2016-08-31 | 惠州市蓝微新源技术有限公司 | Electric automobile soft start circuit system based on negative temperature coefficient thermistor |
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| JP2003324801A (en) * | 2002-05-01 | 2003-11-14 | Honda Motor Co Ltd | Method of connecting power source in electric vehicle |
| CN101087063A (en) * | 2007-06-14 | 2007-12-12 | 奇瑞汽车有限公司 | A high-voltage battery system and secure protection method |
| CN102390279A (en) * | 2011-09-21 | 2012-03-28 | 奇瑞汽车股份有限公司 | Safe control loop of electric automobile |
| CN205141425U (en) * | 2015-11-20 | 2016-04-06 | 东风汽车股份有限公司 | High-voltage distribution box for pure electric light bus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111641246A (en) * | 2020-07-06 | 2020-09-08 | 中车青岛四方机车车辆股份有限公司 | Storage battery safety protection circuit, storage battery control method and device and train |
| CN112542873A (en) * | 2020-12-16 | 2021-03-23 | 中车永济电机有限公司 | Charging and discharging device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180522 Address after: 241000 Huajing South Road, Yijiang District, Wuhu, Anhui 226 Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241006 Changchun Road, Wuhu economic and Technological Development Zone, Wuhu, Anhui, 8 Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 no.226, South Huajin Road, Wuhu high tech Industrial Development Zone, Wuhu City, Anhui Province Applicant after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Applicant before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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