CN112848862A - Cooling system of pure electric vehicle - Google Patents
Cooling system of pure electric vehicle Download PDFInfo
- Publication number
- CN112848862A CN112848862A CN202110194083.2A CN202110194083A CN112848862A CN 112848862 A CN112848862 A CN 112848862A CN 202110194083 A CN202110194083 A CN 202110194083A CN 112848862 A CN112848862 A CN 112848862A
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- Prior art keywords
- controller
- ats
- cooling fan
- temperature
- equal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
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- 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
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses a pure electric vehicle cooling system which comprises a driving motor, a whole vehicle CAN, a DC/DC controller, a motor controller, an ATS fan forced start switch, a cooling fan and a connecting wire, wherein the driving motor is connected with the whole vehicle CAN through the connecting wire; the DC/DC controller is respectively connected with the driving motor, the motor controller and the ATS controller through a whole vehicle CAN; the cooling system is simple in structure, the starting condition of the cooling fan is controlled, rapid cooling and heat dissipation of the electric motor coach are ensured, and the cooling effect is good; the cooling system is convenient and reliable, and accurate temperature control is carried out electrically, so that the energy-saving effect of the system is improved.
Description
Technical Field
The invention belongs to the technical field of design and manufacture of pure electric commercial vehicles, and particularly relates to a cooling system of a pure electric vehicle.
Background
Under the running working state of the electric motor coach, the motor and the devices such as the all-in-one controller can timely distribute out the generated huge heat through the fan of the liquid cooling system, so that the continuous temperature rise is avoided, and the performance and the safety of the whole coach are influenced. The liquid cooling system is complex, the starting conditions of the liquid cooling fan are mostly uncontrolled full-speed starting or the liquid cooling fan starts to operate to a certain degree, the noise is high, the water temperature cannot be controlled according to the working condition in real time, the motor and the controller are in the most suitable temperature, the power consumption of the whole vehicle is increased to a certain degree, the driving range is reduced, and the comfort of the whole vehicle is affected.
Disclosure of Invention
The invention aims to provide a pure electric vehicle cooling system, which simplifies the cooling system to a certain extent and accurately controls the temperature of a main liquid cooling electric appliance, and avoids the defects.
The purpose of the invention can be realized by the following technical scheme:
a pure electric vehicle cooling system comprises a driving motor, a whole vehicle CAN, a DC/DC controller, a motor controller, an ATS fan forced-start switch, a cooling fan and a connecting wire; the DC/DC controller is respectively connected with the driving motor, the motor controller and the ATS controller through a whole vehicle CAN; the cooling fan passes through connecting wire and links to each other with the AT controller, ATS fan strong turn-on switch one end passes through connecting wire and links to each other with the ATS controller, and its other end passes through connecting wire and links to each other with cooling fan, and the ATS controller is used for controlling the cooling fan operation, and ATS fan strong turn-on switch is used for when whole car CAN trouble or appearance temperature anomaly, and manual opening ensures whole car safety.
As a further scheme of the invention: the connecting wire is an electric hard wire.
As a further scheme of the invention: the working method of the cooling system specifically comprises the following steps:
after the whole vehicle is electrified, when the ATS controller synchronously receives the rotating speed R of the driving motor, the temperature T1 of the driving motor, the temperature T2 of the DC/DC controller and the temperature T3 of the motor controller sent by the CAN of the whole vehicle, the following judgments are carried out:
s1: when the ATS controller is powered on for the first time and the communication is successful, the cooling fan is controlled to perform reverse rotation for 25s continuously, and the dustproof effect is achieved;
s2: when R is detected to be more than or equal to 50rpm and the duration t1 is detected to be more than or equal to 30 s;
a. if T1 is more than or equal to 100 ℃, T2 is more than or equal to 55 ℃ or T3 is more than or equal to 55 ℃, the ATS controller outputs a full-speed working signal, and the cooling fan runs at 100% of full speed;
b. if T1 < 70 ℃, T2 < 45 ℃ and T3 < 45 ℃, the ATS controller does not output a signal and the cooling fan does not operate;
c. if the conditions a and b are not met, the ATS controller outputs an automatic control working signal, so that the cooling fan can be subjected to stepless speed regulation in a 50-100% rotating speed range;
d. if the ATS controller controls the cooling fan to operate under the working condition a, when the temperature is reduced to T1-90 ℃, T2-50 ℃, T3-50 ℃ and the duration T2-5 s, the ATS controller controls the cooling fan to jump to the working condition c; otherwise, the working is continued under the working condition a;
e. if the ATS controller controls the cooling fan to operate under the working condition c, when the temperature is reduced to T1 being less than or equal to 60 ℃, T2 being less than or equal to 40 ℃, T3 being less than or equal to 40 ℃, and the duration T3 being more than or equal to 5s, the ATS controller controls the cooling fan to keep the current rotating speed, and the cooling fan stops rotating after the current rotating speed lasts for 25 s; otherwise, judging whether the temperature T1 is less than or equal to 90 ℃, the temperature T2 is less than or equal to 50 ℃ and the temperature T3 is less than or equal to 50 ℃, if so, operating under the working condition c, otherwise, entering a full-speed running state and then entering the working condition d logic judgment;
s3: when R is detected to be less than 50rpm, or R is detected to be more than or equal to 50rpm but the duration t1 is detected to be less than 30s, the ATS controller does not process, and the cooling fan does not work;
s4: when the CAN fails or abnormal temperature condition occurs, the ATS controller controls the cooling fan to be forcibly started to enter a full-speed running state; when the staff debugs and needs and the CAN fault or temperature abnormal condition occurs, the staff CAN also actively start the ATS fan forced-open switch, the safety of the whole vehicle is guaranteed, and the vehicle is safely driven to a destination.
The invention has the beneficial effects that:
1. the cooling system has a simple structure, the starting condition of the cooling fan is controlled, the electric motor coach is ensured to be cooled and radiated quickly, and the cooling effect is good;
2. the cooling system is convenient and reliable, and accurate temperature control is carried out electrically, so that the energy-saving effect of the system is improved;
3. the water temperature is controlled according to the working condition, so that the motor and the controller are at the most suitable temperature, the power consumption of the whole vehicle can be effectively reduced, the driving range is increased, and the comfort of the whole vehicle is ensured.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic connection diagram of mechanical parts of a cooling system of a pure electric vehicle according to the present invention.
FIG. 2 is a schematic diagram of logic determination of a cooling system of a pure electric vehicle according to the present invention.
In the figure: 1. a drive motor; 2. the whole vehicle CAN; 3. a DC/DC controller; 4. a motor controller; 5. an ATS controller; 6. the ATS fan strong-starting switch; 7. a cooling fan; 8. and connecting the lead.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a pure electric vehicle cooling system includes a driving motor 1, a vehicle CAN2, a DC/DC controller 3, a motor controller 4, an ATS controller 5, an ATS fan strong start switch 6, a cooling fan 7, and a connecting wire 8; the DC/DC controller 3 is respectively connected with the driving motor 1, the motor controller 4 and the ATS controller 5 through the whole vehicle CAN 2; cooling fan 7 passes through connecting wire 8 and links to each other with AT controller 5, ATS fan forced-open switch 6 one end passes through connecting wire 8 and links to each other with ATS controller 5, and its other end passes through connecting wire 8 and links to each other with cooling fan 7, and ATS controller 5 is used for controlling cooling fan 7 operation, and ATS fan forced-open switch 6 is used for when whole car CAN2 trouble or appearance temperature is unusual, and manual opening ensures whole car safety.
The connecting wire 8 is an electrical hard wire.
The working method of the cooling system specifically comprises the following steps:
after the whole vehicle is electrified, when the ATS controller 5 synchronously receives the rotating speed R of the driving motor 1, the temperature T1 of the driving motor 1, the temperature T2 of the DC/DC controller 3 and the temperature T3 of the motor controller 4 sent by the whole vehicle CAN2, the following judgments are carried out:
s1: when the ATS controller 5 is successfully electrified and communicated for the first time, the cooling fan 7 is controlled to perform reverse rotation for 25 seconds continuously, and a dustproof effect is achieved;
s2: when R is detected to be more than or equal to 50rpm and the duration t1 is detected to be more than or equal to 30 s;
a. if T1 is more than or equal to 100 ℃, T2 is more than or equal to 55 ℃ or T3 is more than or equal to 55 ℃, the ATS controller 5 outputs a full-speed working signal, and the cooling fan 7100% runs at full speed;
b. if T1 < 70 ℃, T2 < 45 ℃ and T3 < 45 ℃, the ATS controller 5 does not output a signal and the cooling fan 7 does not operate;
c. if the conditions a and b are not met, the ATS controller 5 outputs an automatic control working signal, so that the cooling fan 7 can carry out stepless speed regulation in a 50-100% rotating speed range;
d. if the ATS controller 5 controls the cooling fan 7 to operate under the working condition a, when the temperature is reduced to T1-90 ℃, T2-50 ℃, T3-50 ℃ and the duration time T2-5 s, the ATS controller 5 controls the cooling fan 7 to jump to the working condition c; otherwise, the working is continued under the working condition a;
e. if the ATS controller 5 controls the cooling fan 7 to operate under the working condition c, when the temperature is reduced to T1 being less than or equal to 60 ℃, T2 being less than or equal to 40 ℃, T3 being less than or equal to 40 ℃, and the duration time T3 being more than or equal to 5s, the ATS controller 5 controls the cooling fan 7 to keep the current rotating speed, and stops rotating after the current rotating speed lasts for 25 s; otherwise, judging whether the temperature T1 is less than or equal to 90 ℃, the temperature T2 is less than or equal to 50 ℃ and the temperature T3 is less than or equal to 50 ℃, if so, operating under the working condition c, otherwise, entering a full-speed running state and then entering the working condition d logic judgment;
s3: when detecting that R is less than 50rpm or detecting that R is more than or equal to 50rpm but the duration t1 is less than 30s, the ATS controller 5 does not process and the cooling fan 7 does not work;
s4: when the CAN fails or abnormal temperature condition occurs, the ATS controller 5 controls the cooling fan 7 to be forcibly started to enter a full-speed running state; when the staff debugs and needs and the CAN fault or temperature abnormal condition appears, the staff CAN also actively start the ATS fan strong start switch 6, the safety of the whole vehicle is guaranteed, and the vehicle is safely driven to the destination.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A pure electric vehicle cooling system is characterized by comprising a driving motor (1), a whole vehicle CAN (2), a DC/DC controller (3), a motor controller (4), an ATS controller (5), an ATS fan strong-start switch (6), a cooling fan (7) and a connecting wire (8); the DC/DC controller (3) is respectively connected with the driving motor (1), the motor controller (4) and the ATS controller (5) through the whole vehicle CAN (2); cooling fan (7) link to each other with AT controller (5) through connecting wire (8), ATS fan power-on switch (6) one end passes through connecting wire (8) and links to each other with ATS controller (5), and its other end passes through connecting wire (8) and links to each other with cooling fan (7), and ATS controller (5) are used for controlling cooling fan (7) operation, and ATS fan power-on switch (6) are used for when whole car CAN (2) trouble or appearance temperature is unusual, and manual opening ensures whole car safety.
2. A pure electric vehicle cooling system according to claim 1, characterized in that the connecting wire (8) is an electrical hard wire.
3. A pure electric vehicle cooling system according to claim 2, wherein the operation method of the cooling system specifically comprises the following steps:
after the whole vehicle is electrified, when the ATS controller (5) synchronously receives the rotating speed R of the driving motor (1), the temperature T1 of the driving motor (1), the temperature T2 of the DC/DC controller (3) and the temperature T3 of the motor controller (4) sent by the whole vehicle CAN (2), the following judgments are carried out:
s1: when the ATS controller (5) is powered on for the first time and the communication is successful, the cooling fan (7) is controlled to perform reverse rotation for 25 seconds continuously, and a dustproof effect is achieved;
s2: when R is detected to be more than or equal to 50rpm and the duration t1 is detected to be more than or equal to 30 s;
a. if the temperature T1 is more than or equal to 100 ℃, or the temperature T2 is more than or equal to 55 ℃ or the temperature T3 is more than or equal to 55 ℃, the ATS controller (5) outputs a full-speed working signal, and the cooling fan (7) runs at 100% of full speed;
b. if T1 < 70 ℃, T2 < 45 ℃ and T3 < 45 ℃, the ATS controller (5) does not output a signal and the cooling fan (7) does not operate;
c. if the conditions a and b are not met, the ATS controller (5) outputs a self-control working signal, so that the cooling fan (7) can perform stepless speed regulation in a 50-100% rotating speed range;
d. if the ATS controller (5) controls the cooling fan (7) to operate under the working condition a, when the temperature is reduced to T1-90 ℃, T2-50 ℃, T3-50 ℃ and the duration time T2-5 s, the ATS controller (5) controls the cooling fan (7) to jump to the working condition c; otherwise, the working is continued under the working condition a;
e. if the ATS controller (5) controls the cooling fan (7) to operate under the working condition of c, when the temperature is reduced to T1-60 ℃, T2-40 ℃, T3-40 ℃ and the duration time T3-5 s, the ATS controller (5) controls the cooling fan (7) to keep the current rotating speed, and the cooling fan stops rotating after the current rotating speed lasts for 25 s; otherwise, judging whether the temperature T1 is less than or equal to 90 ℃, the temperature T2 is less than or equal to 50 ℃ and the temperature T3 is less than or equal to 50 ℃, if so, operating under the working condition c, otherwise, entering a full-speed running state and then entering the working condition d logic judgment;
s3: when R is detected to be less than 50rpm, or R is detected to be more than or equal to 50rpm but the duration t1 is detected to be less than 30s, the ATS controller (5) does not process, and the cooling fan (7) does not work;
s4: when a CAN (controller area network) fails or abnormal temperature conditions occur, the ATS controller (5) controls the cooling fan (7) to be forcibly started to enter a full-speed running state; when the worker needs to debug and the CAN fault or temperature abnormal condition occurs, the worker CAN also actively start the ATS fan forced-open switch (6), the safety of the whole vehicle is guaranteed, and the vehicle is safely driven to a destination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110194083.2A CN112848862A (en) | 2021-02-20 | 2021-02-20 | Cooling system of pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110194083.2A CN112848862A (en) | 2021-02-20 | 2021-02-20 | Cooling system of pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112848862A true CN112848862A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110194083.2A Pending CN112848862A (en) | 2021-02-20 | 2021-02-20 | Cooling system of pure electric vehicle |
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| Country | Link |
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| CN (1) | CN112848862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833049A (en) * | 2021-09-27 | 2021-12-24 | 国机重工集团常林有限公司 | Heat dissipation system of electric excavator |
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| CN101684896A (en) * | 2008-09-25 | 2010-03-31 | 佛山市建准电子有限公司 | Lamp with automatic dedusting function |
| US20140370333A1 (en) * | 2013-06-18 | 2014-12-18 | Hyundai Motor Company | Apparatus and method for controlling cooling of battery of environment-friendly vehicle |
| US20160301115A1 (en) * | 2015-04-10 | 2016-10-13 | Toyota Jidosha Kabushiki Kaisha | Cooling system for on-vehicle secondary battery |
| CN109466314A (en) * | 2018-11-23 | 2019-03-15 | 汽解放汽车有限公司 | A kind of pure electric vehicle commercial vehicle cooling system and control method |
| CN112277625A (en) * | 2020-11-20 | 2021-01-29 | 东风商用车有限公司 | Control method and control system of motor cooling system |
-
2021
- 2021-02-20 CN CN202110194083.2A patent/CN112848862A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087115A (en) * | 2006-06-09 | 2007-12-12 | 富准精密工业(深圳)有限公司 | Control module and fan control system using this control module |
| CN101684896A (en) * | 2008-09-25 | 2010-03-31 | 佛山市建准电子有限公司 | Lamp with automatic dedusting function |
| US20140370333A1 (en) * | 2013-06-18 | 2014-12-18 | Hyundai Motor Company | Apparatus and method for controlling cooling of battery of environment-friendly vehicle |
| US20160301115A1 (en) * | 2015-04-10 | 2016-10-13 | Toyota Jidosha Kabushiki Kaisha | Cooling system for on-vehicle secondary battery |
| CN109466314A (en) * | 2018-11-23 | 2019-03-15 | 汽解放汽车有限公司 | A kind of pure electric vehicle commercial vehicle cooling system and control method |
| CN112277625A (en) * | 2020-11-20 | 2021-01-29 | 东风商用车有限公司 | Control method and control system of motor cooling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833049A (en) * | 2021-09-27 | 2021-12-24 | 国机重工集团常林有限公司 | Heat dissipation system of electric excavator |
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Application publication date: 20210528 |