CN112356699A - Electric vehicle waterway control system and method capable of automatically switching flow direction - Google Patents
Electric vehicle waterway control system and method capable of automatically switching flow direction Download PDFInfo
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- CN112356699A CN112356699A CN202011205240.7A CN202011205240A CN112356699A CN 112356699 A CN112356699 A CN 112356699A CN 202011205240 A CN202011205240 A CN 202011205240A CN 112356699 A CN112356699 A CN 112356699A
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- Prior art keywords
- water
- electromagnetic valve
- cut
- relay
- water outlet
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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
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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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
- Y02T10/64—Electric machine technologies in electromobility
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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
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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
- 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
- Y02T90/12—Electric charging stations
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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
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention relates to an electric vehicle waterway control system capable of automatically switching flow direction, which comprises a water pump, a charger water jacket and a motor water jacket, the water-break charging device comprises a relay, a water-break electromagnetic valve and a storage battery, wherein two ends of a coil J1 of the relay are connected to positive and negative ends of a charging gun, one end of a normally open contact K1 of the relay is connected to one end of a power supply of the water-break electromagnetic valve, the other end of the normally open contact K1 of the relay is connected to one end of the power supply of the water-break electromagnetic valve, the other end of the power supply of the water-break electromagnetic valve is connected to the other end of the power supply of the storage battery, a control signal communication end of the water-break electromagnetic valve is connected to the other end of the normally open contact K1 of the relay, a water inlet of the water-break electromagnetic valve is connected to a water outlet of a water jacket. The invention avoids the situation that a charger water jacket with larger water resistance is connected into a cooling system when a vehicle runs, and reduces the power consumption and the noise of the water pump.
Description
Technical Field
The invention relates to the technical field of automatic control of vehicles, in particular to a waterway control system and method for an electric vehicle, which can automatically switch flow directions.
Technical Field
Along with the increasing power of the charger of the electric vehicle, the heating value of the charger is increased. At present, the electric vehicle charger is gradually changed from air cooling to water cooling with higher cooling efficiency. However, the heating value of the charger is much smaller than that of the motor of the whole vehicle, and the flow area of the water jacket of the charger is generally smaller and the internal resistance of the water jacket is larger in consideration of cost. In the existing cooling system of the electric vehicle, a charger is directly connected in series to enter a water path of the cooling system, so that the water resistance of the cooling system is greatly increased, the power and the rotating speed of a water pump are increased frequently in order to meet the requirement of the flow of heat dissipation water of a motor, and the power consumption and the noise of the water pump are greatly increased.
Disclosure of Invention
The invention aims to provide a waterway control system and a waterway control method for an electric vehicle capable of automatically switching flow directions, which can prevent a charging machine water jacket with larger water resistance from being connected into a cooling system when the vehicle runs, thereby reducing the power consumption and the noise of a water pump.
In order to realize the aim, the waterway control system of the electric vehicle capable of automatically switching the flow direction comprises a water pump, a charger water jacket, a motor water jacket, a relay, a water-cut electromagnetic valve and a storage battery, the two ends of a coil J1 of the relay are connected to the positive and negative ends of the charging gun, one end of a normally open contact K1 of the relay is connected with one pole of the storage battery, the other end of the normally open contact K1 of the relay is connected with one pole of a water cut-off electromagnetic valve power supply, the other pole of the water cut-off electromagnetic valve power supply is connected with the other pole of the storage battery, a control signal communication end of the water cut-off electromagnetic valve is connected with the other end of the normally open contact K1 of the relay, a water inlet of the water cut-off electromagnetic valve is connected with a water outlet of the water pump, a first water outlet of the water cut-off electromagnetic valve is connected with a water inlet of a water jacket of the.
Aiming at the defect of large water resistance of a water path of the existing electric vehicle cooling system, the invention adds the water-break electromagnetic valve and the relay, and simultaneously arranges the water jacket of the charger behind one path of water outlet of the water-break electromagnetic valve. The on-off of the charging current is induced by the relay, so that the on-off of different water outlets of the water-break electromagnetic valve is controlled. The water jacket of the charger is automatically connected in series into the water channel of the cooling system in the charging process of the water channel of the cooling system, and the water channel of the water jacket of the charger is automatically in a cut-off state when a vehicle runs (is not charged).
Through above water route switching control system, can switch the cooling system water route according to vehicle charged state automatically, realize charging machine water jacket water route automatic switch-over and insert whole car cooling system water route, avoid the great charging machine water jacket of water resistance to insert cooling system when the vehicle goes, reduce water pump consumption and noise.
Drawings
FIG. 1 is a schematic view of a waterway of an electric vehicle according to the present invention.
FIG. 2 is a schematic diagram of the relay, water cut-off solenoid valve and battery part of the present invention.
In the figure, 1-relay, 2-water cut-off electromagnetic valve, 3-accumulator, 4-radiator, 5-water pump, 6-charger water jacket, 7-motor water jacket, 8-insurance.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
the invention relates to an electric vehicle waterway control system capable of automatically switching flow direction, which is shown in figures 1 and 2 and comprises a water pump 5, a charger water jacket 6, a motor water jacket 7, a relay 1, a water cut-off electromagnetic valve 2 and a storage battery 3, wherein two ends of a coil J1 of the relay 1 are connected with two ends of a positive electrode and a negative electrode of a charging gun, one end of a normally open contact K1 of the relay 1 is connected with one electrode of the storage battery 3, the other end of a normally open contact K1 of the relay 1 is connected with one electrode of a power supply (12V power supply) of the water cut-off electromagnetic valve 2, the other electrode of the power supply of the water cut-off electromagnetic valve 2 is connected with the other electrode of the storage battery 3, a control signal communication end of the water cut-off electromagnetic valve 2 is connected with the other end of a normally open contact K1 of the relay 1, a water inlet of the water cut-off electromagnetic valve 2 is connected with a, the water outlet of the charger water jacket 6 is connected with the water inlet of the motor water jacket 7.
In the technical scheme, the water pump motor further comprises a radiator 4, a water outlet of the motor water jacket 7 is connected with a water inlet of the radiator 4, and a water outlet of the radiator 4 is connected with a water inlet of the water pump 5. The radiator 4 is used for cooling the coolant in the cooling system water channel.
In the above technical scheme, when the water cut-off solenoid valve 2 is not powered on, the first water outlet of the water cut-off solenoid valve 2 is opened, the second water outlet is closed, the water inlet of the water cut-off solenoid valve 2 is communicated with the first water outlet, and the coolant directly flows into the motor water jacket 7 from the water inlet and the first water outlet of the water cut-off solenoid valve 2.
In the technical scheme, when the water-cut solenoid valve 2 is powered on, the first water outlet of the water-cut solenoid valve 2 is closed, the second water outlet of the water-cut solenoid valve 2 is opened, the water inlet of the water-cut solenoid valve 2 is communicated with the second water outlet, and the cooling liquid flows into the charger water jacket 6 from the water inlet and the second water outlet of the water-cut solenoid valve 2 and then flows into the motor water jacket 7.
In the technical scheme, the battery charging device further comprises a fuse 8, and the fuse 8 is connected between one end of a normally open contact K1 of the relay 1 and one pole of the storage battery 3. The fuse 8 is used for preventing the wire from being burnt when the current is too large or the short circuit occurs.
The relay is controlled by charging current on-off; the switching of different water paths is realized by controlling the water-cut electromagnetic valve through the on-off state of the relay; when the vehicle is charged, the water channel of the charger is connected in series and enters the water channel, and when the vehicle runs, the water channel of the charger is in short circuit; therefore, the water resistance of a cooling system during driving is reduced, and the power consumption and the noise of a water pump are reduced.
A waterway control method of an electric vehicle by using the system comprises the following steps:
step 1: when the whole vehicle is not charged, the water cut-off electromagnetic valve 2 is in an initial state, the first water outlet of the water cut-off electromagnetic valve 2 is opened, the second water outlet is closed, the water inlet of the water cut-off electromagnetic valve 2 is communicated with the first water outlet, and the cooling liquid directly flows into the motor water jacket 7 from the water inlet and the first water outlet of the water cut-off electromagnetic valve 2;
step 2: when the whole vehicle is charged, the current output by the charging gun enables the normally open contact K1 of the relay 1 to be attracted, the storage battery 3 supplies power to two stages of the power supply of the water-cut solenoid valve 2 through the normally open contact K1 of the relay 1, meanwhile, the voltage of the control signal communication terminal of the water-cut solenoid valve 2 is increased, the water-cut solenoid valve 2 acts at the moment, the first water outlet of the water-cut solenoid valve 2 is changed to be closed, the second water outlet of the water-cut solenoid valve 2 is opened, the water inlet of the water-cut solenoid valve 2 is communicated with the second water outlet, and the cooling liquid flows into the charger water jacket 6 from the water inlet and the second water outlet of the water-cut solenoid valve 2 and.
The water path control method can automatically switch the water path of the cooling system according to the charging state of the vehicle, realize the automatic switching of the water path of the charger water jacket 6 to be connected into the water path of the cooling system of the whole vehicle, avoid the charger water jacket 6 with larger water resistance from being connected into the cooling system when the vehicle runs, and only when the vehicle is charged, the charger water jacket 6 is connected into the cooling system, thereby reducing the power consumption and noise of the water pump.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (6)
1. The utility model provides an automatic switch electric motor car water route control system of flow direction, it includes water pump (5), charger water jacket (6) and motor water jacket (7), its characterized in that: it also comprises a relay (1), a water cut-off electromagnetic valve (2) and a storage battery (3), the two ends of a coil J1 of the relay (1) are connected to the positive and negative ends of a charging gun, one end of a normally open contact K1 of the relay (1) is connected with one pole of the storage battery (3), the other end of the normally open contact K1 of the relay (1) is connected with one pole of a power supply of the water cut-off electromagnetic valve (2), the other pole of the power supply of the water cut-off electromagnetic valve (2) is connected with the other pole of the storage battery (3), a control signal communication end of the water cut-off electromagnetic valve (2) is connected with the other end of the normally open contact K1 of the relay (1), a water inlet of the water cut-off electromagnetic valve (2) is connected with a water outlet of a water pump (5), a first water outlet of the water cut-off electromagnetic valve (2) is connected with a water inlet of a motor water jacket (7), a second water outlet of the water cut-off electromagnetic valve (2.
2. The waterway control system for the electric vehicle with automatic flow direction switching function of claim 1, wherein: the water pump further comprises a radiator (4), a water outlet of the motor water jacket (7) is connected with a water inlet of the radiator (4), and a water outlet of the radiator (4) is connected with a water inlet of the water pump (5).
3. The waterway control system for the electric vehicle with automatic flow direction switching function of claim 1, wherein: when the water cut-off electromagnetic valve (2) is not powered on, the first water outlet of the water cut-off electromagnetic valve (2) is opened, the second water outlet is closed, the water inlet of the water cut-off electromagnetic valve (2) is communicated with the first water outlet, and the cooling liquid directly flows into the motor water jacket (7) from the water inlet and the first water outlet of the water cut-off electromagnetic valve (2).
4. The waterway control system for the electric vehicle with automatic flow direction switching function of claim 3, wherein: when the water-cut solenoid valve (2) is powered on, the first water outlet of the water-cut solenoid valve (2) is closed, the second water outlet of the water-cut solenoid valve (2) is opened, the water inlet of the water-cut solenoid valve (2) is communicated with the second water outlet, and the cooling liquid flows into the charger water jacket (6) from the water inlet and the second water outlet of the water-cut solenoid valve (2) and then flows into the motor water jacket (7).
5. The waterway control system for the electric vehicle with automatic flow direction switching function of claim 1, wherein: the battery charging system also comprises a fuse (8), and the fuse (8) is connected between one end of a normally open contact K1 of the relay (1) and one pole of the battery (3).
6. A method for controlling a waterway of an electric vehicle using the system of claim 1, comprising the steps of:
step 1: when the whole vehicle is not charged, the water cut-off electromagnetic valve (2) is in an initial state, the first water outlet of the water cut-off electromagnetic valve (2) is opened, the water inlet of the water cut-off electromagnetic valve (2) is communicated with the first water outlet, the second water outlet is closed, and the cooling liquid directly flows into the motor water jacket (7) from the water inlet and the first water outlet of the water cut-off electromagnetic valve (2);
step 2: when the whole vehicle is charged, the current output by the charging gun enables the normally open contact K1 of the relay (1) to be attracted, the storage battery (3) supplies power to two stages of the power supply of the water cut-off electromagnetic valve (2) through the normally open contact K1 of the relay (1), meanwhile, the voltage of the control signal communication end of the water cut-off electromagnetic valve (2) is increased, the water cut-off electromagnetic valve (2) acts, the first water outlet of the water cut-off electromagnetic valve (2) is closed, the second water outlet of the water cut-off electromagnetic valve (2) is opened, the water inlet of the water cut-off electromagnetic valve (2) is communicated with the second water outlet, and cooling liquid flows into the charger water jacket (6) from the water inlet and the second water outlet of the water cut-off electromagnetic valve (2) and flows into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205240.7A CN112356699A (en) | 2020-11-02 | 2020-11-02 | Electric vehicle waterway control system and method capable of automatically switching flow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205240.7A CN112356699A (en) | 2020-11-02 | 2020-11-02 | Electric vehicle waterway control system and method capable of automatically switching flow direction |
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| Publication Number | Publication Date |
|---|---|
| CN112356699A true CN112356699A (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011205240.7A Pending CN112356699A (en) | 2020-11-02 | 2020-11-02 | Electric vehicle waterway control system and method capable of automatically switching flow direction |
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| CN (1) | CN112356699A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960411A (en) * | 2015-05-21 | 2015-10-07 | 北汽福田汽车股份有限公司 | Cooling circulation system for electric vehicles, and electric vehicle with cooling circulation system |
| CN205022357U (en) * | 2015-08-27 | 2016-02-10 | 北汽福田汽车股份有限公司 | Cooling system for electric automobile |
| CN208469533U (en) * | 2018-07-03 | 2019-02-05 | 北京长城华冠汽车技术开发有限公司 | A kind of pure electric vehicle cooling system loop structure |
| CN109878325A (en) * | 2018-12-29 | 2019-06-14 | 北京新能源汽车技术创新中心有限公司 | Cooling system for electric vehicle, electric vehicle and method for controlling cooling system of electric automobile |
-
2020
- 2020-11-02 CN CN202011205240.7A patent/CN112356699A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960411A (en) * | 2015-05-21 | 2015-10-07 | 北汽福田汽车股份有限公司 | Cooling circulation system for electric vehicles, and electric vehicle with cooling circulation system |
| CN205022357U (en) * | 2015-08-27 | 2016-02-10 | 北汽福田汽车股份有限公司 | Cooling system for electric automobile |
| CN208469533U (en) * | 2018-07-03 | 2019-02-05 | 北京长城华冠汽车技术开发有限公司 | A kind of pure electric vehicle cooling system loop structure |
| CN109878325A (en) * | 2018-12-29 | 2019-06-14 | 北京新能源汽车技术创新中心有限公司 | Cooling system for electric vehicle, electric vehicle and method for controlling cooling system of electric automobile |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210212 |
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| RJ01 | Rejection of invention patent application after publication |