CN116638915A - Control system and method for front defrosting and demisting of electric vehicle - Google Patents
Control system and method for front defrosting and demisting of electric vehicle Download PDFInfo
- Publication number
- CN116638915A CN116638915A CN202310603233.XA CN202310603233A CN116638915A CN 116638915 A CN116638915 A CN 116638915A CN 202310603233 A CN202310603233 A CN 202310603233A CN 116638915 A CN116638915 A CN 116638915A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- temperature
- evaporator
- electric
- defrosting
- Prior art date
- 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.)
- Pending
Links
- 238000010257 thawing Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/0073—Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a control system and a method for front defrosting and demisting of an electric car, comprising the following steps: the temperature sensor is used for acquiring the temperature of the evaporator of the electric automobile and an external temperature signal; the air conditioner control module is used for judging whether to start the electric air conditioner compressor and the PCT according to the temperature of the evaporator and the temperature signal outside the vehicle after receiving the defrosting and defogging starting signal; and the electric air conditioner compressor and the PCT receive an opening instruction of the air conditioner control module to start defogging. The method provided by the invention realizes that the front defrosting and demisting function is automatically associated with the starting of the electric compressor or the PTC under different external temperature environments; meanwhile, the difference of the request power of the electric compressor is realized, the electric compressor is operated to the maximum extent, and meanwhile, the energy consumption is reduced.
Description
Technical Field
The invention belongs to the technical field of electric automobiles, and particularly relates to a control system and a control method for front defrosting and demisting of an electric automobile.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the rapid development of the electric industry of automobiles, the importance of energy consumption is enhanced year by year, and the electric compressor/PTC related to the front defrosting/defogging function of the automobile is started, so that the aim of reducing the energy consumption is fulfilled while the operation convenience is improved. At present, a defrosting key can only be directly connected with a fixed rotating speed of an electric compressor to be started before one-key operation of a vehicle, and under the defogging working conditions in spring and autumn, the compressor is easy to start and stop repeatedly, the problem of high power consumption exists, and the energy waste is caused.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a control system and a control method for front defrosting and demisting of an electric car.
To achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
the first aspect of the invention provides a control system for defrosting and demisting an electric car, comprising:
the temperature sensor is used for acquiring the temperature of the evaporator of the electric automobile and an external temperature signal;
the air conditioner control module is used for judging whether to start the electric air conditioner compressor and the PCT according to the temperature of the evaporator and the temperature signal outside the vehicle after receiving the defrosting and defogging starting signal;
and the electric air conditioner compressor and the PCT receive an opening instruction of the air conditioner control module to start defogging.
The second aspect of the invention provides a control method for defrosting and demisting of an electric automobile, which comprises the following steps:
after a user starts a defrosting and defogging function of the electric automobile, a defrosting and defogging signal is sent to an air conditioner control module;
after receiving the defrosting and defogging signals, the air conditioner control module acquires temperature signals outside the vehicle and temperature signals of the evaporator;
the air conditioner control module judges whether the electric air conditioner compressor and the PTC are started for defogging according to the temperature signals of the evaporator and the outside of the vehicle.
The one or more of the above technical solutions have the following beneficial effects:
according to the invention, the front defrosting and defogging functions are automatically associated with the starting of the electric compressor or the PTC under different external temperature environments through the control strategy; meanwhile, the difference of the request power of the electric compressor is realized, the electric compressor is operated to the maximum extent, and meanwhile, the energy consumption is effectively reduced.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a block diagram of a control system for defrosting and demisting an electric automobile according to a first embodiment.
Fig. 2 is a graph of target evaporator temperature for the first embodiment.
Detailed Description
Example 1
As shown in fig. 1, this embodiment discloses a control system for defrosting and demisting in front of an electric vehicle, including: the temperature sensor, the air conditioner control module, the electric air conditioner compressor and PCT (Positive Temperature Coefficient) are respectively in CAN communication with the control panel or the central control large screen, the electric air conditioner compressor and the PTC; and is hard-wired to a temperature sensor and HVAC mode damper motor.
The user presses a front defrosting button on an air conditioner control panel or a central control large screen, and the air conditioner control panel generates a defrosting and defogging signal and transmits the defrosting and defogging signal to an air conditioner control module; the temperature sensor is used for acquiring the temperature of the evaporator and the temperature signal outside the automobile, the air conditioner control module is used for judging whether to start the electric air conditioner compressor and the PCT according to the temperature of the evaporator and the temperature signal outside the automobile after receiving the defrosting and defogging starting signal, and the electric air conditioner compressor and the PCT receive the starting instruction of the air conditioner control module to start defogging; after the HVAC mode air door motor receives the front defrosting mode instruction of the air conditioner control module, the air outlet is adjusted to a front defogging position.
Specifically, the front defrosting key is a functional switch integrated on an air conditioner control panel or a central control large screen, can set wind direction to a front windshield, and realizes the associated starting of a voltage compressor or PTC through preset logic;
the temperature sensor comprises an outside-vehicle temperature sensor and an evaporator temperature sensor, wherein the outside-vehicle temperature sensor is a device arranged in an effective ventilation area of a front grille of the automobile, and the collection of the outside-vehicle environment temperature is realized;
the evaporator temperature sensor is a device arranged on the surface of an evaporator in an air conditioner host in the vehicle, so that the acquisition of the temperature of the evaporator is realized;
the air conditioner control module is a device for acquiring temperature and user operation instructions, then running preset logic and outputting control signals, and realizing normal expansion of air conditioner functions;
the PTC is a device arranged on an air conditioner host in the vehicle, and provides a heat source for realizing warm air defrosting.
Further, when the whole vehicle is electrified, and the electric quantity of the whole vehicle is more than or equal to 5%, a user clicks a front defrosting button, and the air outlet mode performs front defrosting:
the air conditioner control module judges that the electric compressor or the PTC is started in a correlated way according to resistance signals collected by the outdoor temperature sensor and the evaporator temperature sensor which are connected through hard wires, and when the temperature Tamb outside the automobile is more than or equal to 2 ℃: starting an associated electric compressor; 2< Tamb >0 ℃): the association request maintains the last state; when Tamb is less than or equal to 0 ℃, the associated PTC is opened.
When the electric air conditioner compressor is in an associated starting working condition, the regulation of the required rotation speed of the compressor is realized through the feedback value of the evaporator temperature sensor, the stable output of the power of the electric compressor is maintained to the maximum extent, and the effect of reducing the energy consumption is achieved.
When the related electric air conditioner compressor is started, the preset logic for adjusting the target rotating speed is specifically as follows:
example two
The embodiment discloses a control method for front defrosting and demisting of an electric car, which comprises the following steps:
after a user starts a defrosting and defogging function of the electric automobile, a defrosting and defogging signal is sent to an air conditioner control module;
after receiving the defrosting and defogging signals, the air conditioner control module acquires temperature signals outside the vehicle and temperature signals of the evaporator;
the air conditioner control module judges whether the electric air conditioner compressor and the PTC are started for defogging according to the temperature signals of the evaporator and the outside of the vehicle.
Further, judging whether the electric air conditioner compressor and the PCT are started to defog according to the temperature signals of the evaporator and the outside of the vehicle, comprising: when the temperature Tamb outside the vehicle is more than or equal to 2 ℃, the electric air conditioner compressor is started; 2< Tamb >0 ℃, requesting to maintain the last state; when Tamb is less than or equal to 0 ℃, PTC is opened.
Further, the method further comprises the following steps: when the electric air conditioner compressor is in an on state, the air conditioner control module calculates a target rotating speed of the electric air conditioner compressor according to the evaporator and the temperature signal outside the vehicle.
Specifically, the air conditioner control module calculates a target rotational speed of the electric air conditioner compressor according to the evaporator and the temperature signal outside the vehicle, including: when the temperature outside the vehicle is 2 ℃ or less and Tamb or more than 20 ℃, determining the temperature of the target evaporator according to a linear interpolation method; and determining the target rotating speed of the electric air conditioner compressor according to the difference value between the actual evaporator temperature and the target evaporator temperature.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. The utility model provides a control system of electric automobile front defrosting defogging which characterized in that includes:
the temperature sensor is used for acquiring the temperature of the evaporator of the electric automobile and an external temperature signal;
the air conditioner control module is used for judging whether to start the electric air conditioner compressor and the PCT according to the temperature of the evaporator and the temperature signal outside the vehicle after receiving the defrosting and defogging starting signal;
and the electric air conditioner compressor and the PCT receive an opening instruction of the air conditioner control module to start defogging.
2. A control system for defrost and defog in an electric vehicle as claimed in claim 1, wherein said temperature sensor comprises an off-vehicle temperature sensor and an evaporator temperature sensor; the external temperature sensor is arranged in a front grille ventilation area of the automobile and is used for collecting external temperature signals; the evaporator temperature sensor is arranged on the surface of an evaporator of an air conditioner host in the vehicle and is used for collecting evaporator temperature signals.
3. The control system of claim 1, wherein a user presses a front defrost button on an air conditioner control panel or a central control panel, and the air conditioner control panel generates defrost defogging signals for transmission to an air conditioner control module.
4. The control system for defrosting and demisting in front of an electric vehicle according to claim 1, wherein the judging whether to turn on the electric air conditioner compressor and PCT according to the evaporator temperature and the vehicle exterior temperature signal comprises: when the temperature Tamb outside the vehicle is more than or equal to 2 ℃, the electric compressor is started; 2< Tamb >0 ℃, requesting to maintain the last state; when Tamb is less than or equal to 0 ℃, PTC is opened.
5. The control system for defrosting and demisting an electric automobile according to claim 1, wherein the air conditioner control module is further configured to calculate a target rotational speed of the electric air conditioner compressor based on the actual evaporator temperature and the target evaporator temperature when the electric air conditioner compressor is in an on state.
6. The control system for defrosting and demisting an electric automobile according to claim 5, wherein the calculating the target rotation speed of the electric air conditioner compressor according to the actual temperature of the evaporator and the target temperature of the evaporator comprises: when the temperature outside the vehicle is 2 ℃ or less and Tamb or more than 20 ℃, determining the temperature of the target evaporator according to a linear interpolation method; and determining the target rotating speed of the electric air conditioner compressor according to the actual evaporator temperature and the target evaporator temperature.
7. The control method for front defrosting and demisting of the electric automobile is characterized by comprising the following steps of:
after a user starts a defrosting and defogging function of the electric automobile, a defrosting and defogging signal is sent to an air conditioner control module;
after receiving the defrosting and defogging signals, the air conditioner control module acquires temperature signals outside the vehicle and temperature signals of the evaporator;
the air conditioner control module judges whether the electric air conditioner compressor and the PTC are started for defogging according to the temperature signal of the evaporator and the temperature signal outside the vehicle.
8. The method for controlling front defrosting and defogging of an electric automobile according to claim 7, wherein the judging whether the electric air conditioner compressor and the PCT are turned on or not according to the temperature signal of the evaporator and the temperature signal outside the automobile comprises: when the temperature Tamb outside the vehicle is more than or equal to 2 ℃, the electric air conditioner compressor is started; 2< Tamb >0 ℃, requesting to maintain the last state; when Tamb is less than or equal to 0 ℃, PTC is opened.
9. The method for controlling front defrosting and demisting of an electric automobile as claimed in claim 7, further comprising: when the electric air conditioner compressor is in an on state, the air conditioner control module calculates a target rotating speed of the electric air conditioner compressor according to the temperature signal of the evaporator and the temperature signal outside the vehicle.
10. The method for controlling front defrosting and defogging of an electric automobile according to claim 9, wherein the air conditioner control module calculates a target rotation speed of an electric air conditioner compressor according to a temperature signal of an evaporator and a temperature signal outside the automobile, comprising: when the temperature outside the vehicle is 2 ℃ or less and Tamb or more than 20 ℃, determining the temperature of the target evaporator according to a linear interpolation method; and determining the target rotating speed of the electric air conditioner compressor according to the temperature of the evaporator and the target evaporator temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310603233.XA CN116638915A (en) | 2023-05-23 | 2023-05-23 | Control system and method for front defrosting and demisting of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310603233.XA CN116638915A (en) | 2023-05-23 | 2023-05-23 | Control system and method for front defrosting and demisting of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116638915A true CN116638915A (en) | 2023-08-25 |
Family
ID=87624112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310603233.XA Pending CN116638915A (en) | 2023-05-23 | 2023-05-23 | Control system and method for front defrosting and demisting of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116638915A (en) |
-
2023
- 2023-05-23 CN CN202310603233.XA patent/CN116638915A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3633482B2 (en) | Hybrid vehicle and air conditioner thereof | |
| CN103863058B (en) | The vehicle HVAC system with the recycling of improved air for start and stop engine | |
| CN201827993U (en) | Automobile air conditioning system | |
| US20110067422A1 (en) | Air-conditioning device for vehicle | |
| CN110901341A (en) | System and method for intelligently adjusting temperature in vehicle | |
| CN104773047A (en) | Electric automobile air conditioner panel control system and control method thereof | |
| CN105346354A (en) | Air conditioning system of pure electric vehicle and control method | |
| CN112319175A (en) | Automobile active intelligent air conditioner control system and control method thereof, and automobile | |
| JP3329253B2 (en) | Vehicle air conditioner | |
| CN112158166A (en) | Control method for automatic demisting of automobile and automobile | |
| CN112124249A (en) | Automatic defogging control method | |
| CN113415122B (en) | Control method of air conditioner heating system of pure electric vehicle | |
| JP4066579B2 (en) | Air conditioner | |
| CN204506415U (en) | Air conditioner of electric vehicle panel control system | |
| CN116638915A (en) | Control system and method for front defrosting and demisting of electric vehicle | |
| KR102042322B1 (en) | Engine control method for heating of hybrid electric vehicle | |
| CN115923441A (en) | Parking warm air conditioner integrated control system and method for commercial vehicle | |
| JP2013060144A (en) | Vehicular air conditioner | |
| CN112793384B (en) | Automobile air conditioner, control method and device thereof, storage medium and processor | |
| JP2003326938A (en) | Air-conditioning defogging control device for vehicle | |
| JP3028664B2 (en) | Electric vehicle air conditioner and control method thereof | |
| CN205417082U (en) | Complete automatically controlled air conditioning system | |
| CN221273180U (en) | Steering wheel with ventilation structure | |
| CN111376674B (en) | Vehicle air conditioner control method and system | |
| CN112918215B (en) | Control method and system for automobile air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |