CN116749704A - Vehicle thermal management control method and device, vehicle and readable storage medium - Google Patents
Vehicle thermal management control method and device, vehicle and readable storage medium Download PDFInfo
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- CN116749704A CN116749704A CN202310512585.4A CN202310512585A CN116749704A CN 116749704 A CN116749704 A CN 116749704A CN 202310512585 A CN202310512585 A CN 202310512585A CN 116749704 A CN116749704 A CN 116749704A
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Classifications
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- 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
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- 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
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- 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
- B60H1/00764—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 vehicle driving condition, e.g. speed
- B60H1/00771—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 vehicle driving condition, e.g. speed the input being a vehicle position or surrounding, e.g. GPS-based position or tunnel
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- 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
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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
-
- 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
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
- B60W40/09—Driving style or behaviour
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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
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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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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- 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
- B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/30—Driving style
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Thermal Sciences (AREA)
- Mathematical Physics (AREA)
- Automation & Control Theory (AREA)
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- Software Systems (AREA)
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- Navigation (AREA)
Abstract
The invention provides a thermal management control method and device for a vehicle, the vehicle and a readable storage medium, and relates to the technical field of vehicle control, wherein the method comprises the following steps: acquiring the driving style of a current driver and navigation information of a vehicle, wherein the navigation information comprises estimated passing time and road condition information; determining a road condition correction coefficient according to the road condition information and determining a driving style correction coefficient according to the driving style; correcting the predicted passing time according to the road condition correction coefficient and the driving style correction coefficient to obtain the residual driving duration; judging whether the vehicle meets the energy-saving condition or not, wherein the method comprises the steps of judging whether the residual driving duration is smaller than a preset duration or not; and when the vehicle meets the energy-saving condition, performing energy-saving thermal management control on an executing mechanism of the vehicle. The invention has the beneficial effects that: the energy consumption of the vehicle can be reduced, so that the duration of the vehicle is improved.
Description
Technical Field
The present invention relates to the field of vehicle control technologies, and in particular, to a method and apparatus for controlling thermal management of a vehicle, and a readable storage medium.
Background
In order to ensure stable running of the vehicle and respond to the driving requirement of a user, a thermal management technology is adopted in the vehicle to adjust the temperature of each controlled object of the vehicle so as to ensure that the controlled object is in a proper temperature zone.
The heat management is divided into heating and cooling, wherein the heating is usually performed by using a heating medium, the cooling is usually performed by using a compressor to compress a refrigerant, and then the refrigerant is matched with a driving medium such as a water pump, a fan, a blower and the like so as to release heat or conduct heat. In terms of control, thermal management is generally dominated by the vehicle control unit (VCU, vehicle Control Unit), possibly accompanied by sub-controller coordination. Each thermal management object has a suitable target temperature, if the actual temperature is high, the vehicle control unit will send out a cooling request, and if the actual temperature is low, will send out a heating request, so that the thermal management control object will be maintained in a suitable temperature range.
The thermal management is widely applied to various current vehicles, with the deepening of the energy-saving and environment-friendly concepts and the vigorous development of new energy vehicles, the execution mechanisms related to the thermal management at present are gradually increased, and the thermal management of an engine, a passenger cabin, a battery, a motor and a intelligent driving is also performed.
Disclosure of Invention
The invention solves the problem of reducing the energy consumption of the vehicle so as to improve the endurance of the vehicle.
In order to solve the above problems, the present invention provides a thermal management control method for a vehicle, comprising the steps of:
acquiring the driving style of a current driver and navigation information of a vehicle, wherein the navigation information comprises estimated passing time and road condition information;
determining a road condition correction coefficient according to the road condition information, and determining a driving style correction coefficient according to the driving style;
correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient to obtain the residual driving duration;
judging whether the vehicle meets an energy-saving condition or not, wherein the judging comprises judging whether the residual running duration is smaller than a preset duration or not;
and when the vehicle meets the energy-saving condition, performing energy-saving thermal management control on an executing mechanism of the vehicle.
According to the vehicle thermal management control method, the driving style of the driver and the navigation information comprising road condition information are obtained to respectively determine the road condition correction coefficient and the driving style correction coefficient, the road condition correction coefficient and the driver style correction coefficient are further adopted to correct the predicted passing time in the navigation information, the obtained vehicle residual running duration can be relatively fit with the actual situation, and energy-saving thermal management control is adopted for the vehicle executing mechanism when the residual running duration is relatively short, namely, the distance between the driver and the destination is close, so that balance among vehicle energy conservation, vehicle loss and user experience is achieved, vehicle energy consumption is reduced, and overall endurance of the vehicle is further improved.
Further, when the vehicle satisfies the energy-saving condition, performing energy-saving thermal management control on an actuator of the vehicle includes:
and switching the conventional thermal management control logic adopted by the executing mechanism into energy-saving thermal management control logic.
Further, the conventional thermal management control logic includes the steps of:
when receiving an adjustment request for adjusting the temperature of the execution mechanism, executing the adjustment request in real time so as to perform thermal management control on the execution mechanism;
the energy-saving thermal management control logic includes:
when receiving an adjustment request for adjusting the temperature of the executing mechanism, acquiring the real-time temperature of the executing mechanism, and comparing the real-time temperature with a preset temperature threshold;
when the real-time temperature does not reach the preset temperature threshold value and the difference value between the real-time temperature and the preset temperature threshold value is larger than a first difference value, canceling execution of the adjustment request;
and when the difference value between the real-time temperature and the preset temperature threshold value is smaller than or equal to a second difference value, executing the adjustment request to perform thermal management control on the executing mechanism, wherein the second difference value is smaller than or equal to the first difference value.
Further, the step of obtaining the driving style of the current driver includes the steps of:
acquiring operating parameters of an accelerator pedal, a brake pedal and a steering wheel, and acquiring the speed and the electricity consumption of the vehicle;
and determining a driving style coefficient for representing the driving style according to the operating parameter, the vehicle speed and the electricity consumption.
Further, the determining whether the vehicle satisfies the energy saving condition further includes:
judging whether the vehicle is in a preset driving mode or not; and/or
Judging whether a driving style coefficient used for representing the driving style is smaller than a preset coefficient, wherein the driving style coefficient is positively related to the energy consumption degree of the driver; and/or
Judging whether the actual temperature of the executing mechanism meets a preset condition or not; and/or
Judging whether the temperature change rate of the executing mechanism is smaller than a preset rate or not.
Further, the navigation information includes the estimated passage time and the road condition information of each traveling road section, and the remaining traveling duration is a sum of the estimated passage times corrected for each traveling road section.
Further, the road condition information comprises a road section length and a congestion condition, and the road condition correction coefficient comprises a length correction coefficient determined by the road section length and a congestion correction coefficient determined by the congestion condition; the correcting the estimated transit time according to the road condition correction coefficient and the driving style correction coefficient corresponding to the current driver comprises the following steps:
and determining the product of the estimated transit time and the driving style correction coefficient, the length correction coefficient and the congestion correction coefficient as the corrected estimated transit time.
The invention also provides a thermal management control device of the vehicle, which comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the driving style of a current driver and the navigation information of a vehicle, wherein the navigation information comprises predicted passing time and road condition information;
the processing module is used for determining road condition correction coefficients of all the driving road sections according to the road condition information and determining driving style correction coefficients according to the driving style;
the correction module is used for correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient so as to obtain the residual driving duration;
the judging module is used for judging whether the vehicle meets the energy-saving condition or not, wherein the judging module comprises judging whether the residual driving duration is smaller than a preset duration or not;
and the execution module is used for carrying out energy-saving thermal management control on an execution mechanism of the vehicle when the vehicle meets the energy-saving condition.
The thermal management control device for a vehicle of the present invention has similar technical effects to those of the thermal management control method for a vehicle described above, and will not be described in detail herein.
The invention also proposes a vehicle comprising a memory for storing a computer program and a processor for implementing the thermal management control method of a vehicle as described above when executing the computer program.
The vehicle of the present invention has similar technical effects to the thermal management control device of the vehicle described above, and will not be described in detail herein.
The present invention also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a thermal management control method of a vehicle as described above.
The computer readable storage medium of the present invention has similar technical effects to the above-mentioned thermal management control method of the vehicle, and will not be described in detail herein.
Drawings
FIG. 1 is a flow chart of a method of controlling thermal management of a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a data transmission principle of a vehicle according to an embodiment of the invention;
FIG. 3 is a flow chart of correcting the estimated transit time in a thermal management control method of a vehicle according to an embodiment of the invention;
FIG. 4 is a logic diagram of determining an energy saving condition in a thermal management control method of a vehicle according to an embodiment of the present invention;
fig. 5 is a block diagram of a thermal management control device for a vehicle according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. While certain embodiments of the invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be practiced in a variety of ways and should not be interpreted as limited to the embodiments set forth herein, which are instead provided to provide a more thorough and complete understanding of the invention. It should be understood that the drawings and embodiments of the invention are for illustration purposes only and are not intended to limit the scope of the present invention.
It should be understood that the various steps recited in the method embodiments of the present invention may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the invention is not limited in this respect.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "alternative embodiments". Related definitions of other terms will be given in the description below. It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.
Referring to fig. 1, an embodiment of the present invention provides a thermal management control method for a vehicle, including the steps of:
and acquiring the driving style of the current driver and navigation information of the vehicle, wherein the navigation information comprises predicted passing time and road condition information.
The driving style may be data reflecting driving behavior of the driver, and may be obtained by statistical analysis of operation of the vehicle by the driver, for example, operation of steering wheel, pedal, etc., and operation and usage conditions of air conditioner, vehicle-mounted screen and other vehicle energy consumption devices. When a driver uses the vehicle, the driving style obtained by analysis in the driving process can be selected through the vehicle central control screen, so that the driving style data can be set, and the driving style data can also be obtained by analyzing the vehicle in combination with a certain piece of data of the current driving of the driver.
In an alternative embodiment, the driving style is represented by a specific value, and is set as a driving style coefficient, different values represent the energy consumption styles of different drivers, and the higher the driving style coefficient, the higher the energy consumption of different drivers.
The navigation information may be provided by a third party platform, in this embodiment, a starting point and a destination point of vehicle driving may be selected for a driver through a human-machine interaction system (HMI, human Machine Interface) in a networking manner, and the navigation information obtained by the human-machine interaction system may include a currently estimated passing time and road condition information reflecting driving conditions, and specifically, the road condition information may include a road segment length, a road congestion condition, and the like.
And determining a road condition correction coefficient according to the road condition information, and determining a driving style correction coefficient according to the driving style.
And correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient to obtain the residual driving duration.
In the embodiment of the invention, when the actual road condition information and the driving style are obtained, the road condition correction coefficient corresponding to the road condition information and the driving style correction coefficient corresponding to the driving style are determined, so that the estimated passing time is corrected, and the corrected estimated passing time and the obtained residual driving time are closer to the actual situation as much as possible.
The specific corresponding relation between the driving style and the driving style correction coefficient and the corresponding relation between the road condition information and the road condition correction coefficient can be used for carrying out a real-vehicle running test based on a calibration method, the estimated passing time and the actual passing time are compared, the multiplication correction factor is calibrated, the estimated passing time is enabled to be as close to the actual passing time as possible, the actual passing time is calibrated, and then, during vehicle utilization, table lookup determination is carried out according to the driving style of a current driver and the road condition information of actual navigation.
The more complex road conditions, the longer the road section length, etc., and the larger the driving style (the larger the driving style coefficient) the corresponding correction coefficient, namely the longer the estimated transit time obtained after correction, otherwise, the shorter the estimated transit time obtained after correction, so as to be more fit for the actual situation. The specific correction factor values, and the manner of correcting the estimated transit time, such as product (weighted) correction, addition correction, etc., may be set according to actual requirements.
And judging whether the vehicle meets the energy-saving condition or not, wherein the judging comprises judging whether the residual running duration is smaller than a preset duration or not.
And when the vehicle meets the energy-saving condition, performing energy-saving thermal management control on an executing mechanism of the vehicle.
The vehicle control unit can calculate the remaining driving duration in real time according to the current changed road condition information so as to realize the adjustment and update of the remaining driving duration.
It can be understood that for the thermal management control of the vehicle execution mechanism (such as PTC ceramic heating device, compressor, fan and electronic water pump), the control is usually performed based on actual requirements, while for the energy-saving thermal management control of the embodiment of the present invention, the actual performance of thermal management is reduced to a certain extent under the condition of ensuring energy saving. When the calculated remaining driving duration is smaller than the preset duration, the distance from the current vehicle to the destination is relatively short, at this time, if the energy-saving thermal management control of the executing mechanism of the vehicle is started, for example, the control of the temperature of the vehicle battery or the vehicle environment temperature is canceled or weakened under the condition of ensuring energy saving, although the running performance of the vehicle and the actual experience of the user can be reduced, the control process can not cause serious influence on the vehicle and the user due to the fact that the user will reach the destination, so that the balance among the vehicle energy saving, the vehicle loss and the user experience is achieved, and under the condition of ensuring the driving requirement and the user experience, the energy consumption is reduced at the final stage of the vehicle driving, and the vehicle can have longer continuous voyage mileage.
In the present embodiment, whether the vehicle satisfies the energy saving condition is determined based on the remaining travel time period. In other embodiments, the specific determination of whether the energy saving is met may also consider other vehicle factors, for example, the actual temperature of the actuator is higher, if the actual temperature of the actuator needs to be reduced is higher, normal thermal management needs to be performed at this time, and this situation may not adopt energy saving thermal management control, for example, the driving style of the driver is very aggressive, at this time, the adoption of energy saving thermal management control may not ensure high performance of the vehicle, and even the vehicle is easy to be damaged because of untimely thermal management, so based on these determinations, the determination logic of whether the vehicle meets the energy saving condition may be jointly constructed, so that the running control of the vehicle is more accurate.
Referring to fig. 2, the navigation information obtained by the man-machine interaction system is sent to the vehicle control unit VCU, so that the vehicle control unit executes a thermal management control method of the vehicle, calculates a remaining driving duration, further performs function admission judgment (judges whether the vehicle meets an energy-saving condition), and executes energy-saving measures to control execution mechanisms such as PTC, compressor, fan, electronic water pump, and the like.
In an optional embodiment of the invention, the road condition information includes a road segment length and a congestion situation, and the road condition correction coefficient includes a length correction coefficient determined by the road segment length and a congestion correction coefficient determined by the congestion situation; the correcting the estimated transit time according to the road condition correction coefficient and the driving style correction coefficient corresponding to the current driver comprises the following steps:
and determining the product of the estimated transit time and the driving style correction coefficient, the length correction coefficient and the congestion correction coefficient as the corrected estimated transit time.
In a specific embodiment, for the length correction coefficient, the congestion correction coefficient and the driving style correction coefficient, a real vehicle running test can be performed through a calibration method, the predicted passing time and the actual passing time are compared, and the predicted passing time is made to be as close to the actual passing time as possible through calibration multiplication correction factors, so that the estimated passing time is calibrated.
Specifically, the length correction coefficient, the congestion correction coefficient and the driving style correction coefficient are respectively corresponding to respective characteristic curves, so that the characteristic curves can be obtained according to the road section length, the congestion condition (such as congestion level) and the driving style (driving style coefficient), which are usually 1, and when the coefficient is determined by looking up the table for correcting the estimated transit time, the coefficient can be determined to be slightly less than 1 or slightly more than 1, such as between 0.8 and 1.2. In an alternative embodiment, the longer the road segment length, the higher the congestion level and the more aggressive the driving style (the larger the driving style factor) the larger the corresponding correction factor, i.e. the longer the estimated transit time after correction.
In an alternative embodiment of the present invention, the step of acquiring the driving style of the current driver includes the steps of:
acquiring operating parameters of an accelerator pedal, a brake pedal and a steering wheel, and acquiring the speed and the electricity consumption of the vehicle;
and determining a driving style coefficient for representing the driving style according to the operating parameter, the vehicle speed and the electricity consumption.
In this embodiment, the driving style is represented by a driving style coefficient, and the driving style coefficient identifies the driving behavior of the driver through the vehicle controller, specifically, for example, the accelerator opening, the speed, the brake opening, the speed, the steering speed, the vehicle speed, the electricity consumption, etc., and is obtained by analysis, and the value is usually between 0.5 and 1.5, usually 1, which indicates the normal driving style; the smaller the value is, the milder the driving style is, and in a specific scene, 0.5 is the mildest coefficient, namely, the energy consumption is the lowest in the style; the larger the value is, the more aggressive the driving style is, and in a specific scene, 1.5 is the most aggressive coefficient, namely, the style has the highest energy consumption. The driving habit of one person represented by the driving style coefficient is relatively stable, so that the habitual behavior and the sporadic behavior can be fully considered when the driving style coefficient of the driver is determined, for example, the driving style coefficient finally obtained through big data analysis or filtering processing is relatively stable, and the driving style in the whole driving process can be integrally reflected by combining the driving style coefficient of the driver.
In an alternative embodiment of the present invention, the navigation information includes the estimated time of passage and the road condition information of each traveling road section, and the remaining traveling duration is a sum of the estimated time of passage corrected for each traveling road section.
In this embodiment, for the acquired navigation information, which includes information of a plurality of road segments divided by the entire driving path, the estimated transit time is correspondingly estimated time of each driving road segment, and the road condition information is road condition of each driving road segment, so that for each driving road segment, the length correction coefficient, the congestion correction coefficient and the driving style correction coefficient can be combined for correction, and finally the estimated transit time after correction is added to obtain the remaining driving duration.
Specifically, referring to fig. 3, for a travel path from a certain departure point to a destination, n travel sections are divided, wherein for a first travel section 1, the estimated travel time 1 of the travel section is corrected by combining the section 1, the congestion correction coefficient 1 and the driving style correction coefficient of the current driver, the product is the section travel time 1, and correspondingly, for travel sections 2-n, the section travel time 2-n is obtained respectively, and the remaining travel time is finally accumulated.
In an optional embodiment of the present invention, the determining whether the vehicle satisfies an energy saving condition further includes:
judging whether the vehicle is in a preset driving mode or not; and/or
Judging whether a driving style coefficient used for representing the driving style is smaller than a preset coefficient, wherein the driving style coefficient is positively related to the energy consumption degree of the driver; and/or
Judging whether the actual temperature of the executing mechanism meets a preset condition or not; and/or
Judging whether the temperature change rate of the executing mechanism is smaller than a preset rate or not.
In the embodiment of the invention, under the condition that the residual driving duration is smaller than the preset duration, the method further comprises judging whether the vehicle driving mode, the current driving style, the temperature performance condition of the actuating mechanism and the vehicle have related faults or have forbidden instructions, so that whether the energy-saving condition is met is determined. Specifically, when the vehicle driving mode satisfies the conditions (such as in ECO mode and energy saving ecological mode), the driving style satisfies the conditions (the driving style coefficient is smaller than a preset value, for example, lower than 1.2, which indicates that the driving style is not particularly aggressive), the actual temperature of the thermal management executing mechanism satisfies the conditions (the actual temperature of the executing mechanism requiring cooling is lower than a preset temperature value, or the actual temperature of the executing mechanism requiring heating is higher than a preset temperature value), the temperature rate satisfies the conditions (the temperature change rate of the executing mechanism is lower), the related fault code does not exist (the vehicle does not have a fault), the disabling instruction does not exist (the energy saving thermal management is not limited), and the like, the energy saving condition is satisfied, that is, in fig. 4, the energy saving thermal management control is set when the conditions are satisfied, otherwise, the energy saving thermal management control is set to be 0, which indicates that the energy saving condition is not satisfied, and the energy saving thermal management control is not performed.
In an alternative embodiment of the present invention, the energy-saving thermal management control for the actuator of the vehicle when the vehicle satisfies the energy-saving condition includes the steps of:
and switching the conventional thermal management control logic adopted by the executing mechanism into energy-saving thermal management control logic.
In this embodiment, when the vehicle does not meet the energy-saving condition, the vehicle uses the conventional thermal management control logic to perform temperature management on the executing mechanism, and when the energy-saving condition is met, the control logic is switched to the energy-saving thermal management control logic, so as to realize accurate energy-saving thermal management control, and correspondingly, in the subsequent process, if the vehicle does not meet the energy-saving condition, the switching from the energy-saving thermal management control logic to the conventional thermal management control logic is realized, so as to ensure normal operation of the vehicle and ensure actual experience of a user.
Wherein the conventional thermal management control logic comprises:
and when receiving an adjustment request for adjusting the temperature of the actuating mechanism, executing the adjustment request in real time so as to perform thermal management control on the actuating mechanism.
When the vehicle does not meet the energy-saving condition, the conventional thermal management control logic can be adopted to control the execution mechanism, for example, when the vehicle control unit receives a heating or refrigerating regulation request (such as battery heating, motor cooling, passenger cabin refrigerating, engine cooling and the like), the vehicle control unit immediately executes the regulation request, such as PTC heating, compressor rotation activation, fan operation activation and electronic water pump operation control, so that all components of the vehicle are in the most suitable working state, and the riding requirement of a user is met, and at the moment, the energy consumption of the vehicle is in a normal condition.
The energy-saving thermal management control logic includes:
when receiving an adjustment request for adjusting the temperature of the executing mechanism, acquiring the real-time temperature of the executing mechanism, and comparing the real-time temperature with a preset temperature threshold;
when the real-time temperature does not reach the preset temperature threshold value and the difference value between the real-time temperature and the preset temperature threshold value is larger than a first difference value, canceling execution of the adjustment request;
and when the difference value between the real-time temperature and the preset temperature threshold value is smaller than or equal to a second difference value, executing the adjustment request to perform thermal management control on the executing mechanism, wherein the second difference value is smaller than or equal to the first difference value.
When the vehicle meets the energy-saving condition, the conventional thermal management control logic is switched to the energy-saving thermal management control logic, in the energy-saving thermal management control logic, when the vehicle control unit receives a heating or refrigerating and other adjustment request of the execution mechanism, the corresponding thermal management control of the execution mechanism is not performed immediately, but whether the temperature management is performed is judged according to the real-time temperature of the execution mechanism and a preset temperature threshold, wherein the preset temperature threshold is the highest and lowest threshold temperature allowed by normal operation, when the actual temperature does not reach the preset temperature threshold, and when the difference value between the real-time temperature and the preset temperature threshold is larger than a first difference value, the fact that the execution mechanism does not exceed the highest threshold temperature or does not exceed the lowest threshold temperature is indicated, and a certain difference exists, at the moment, the thermal management control can not be executed, the vehicle can still ensure normal operation, and the energy saving and the energy reduction are realized, and the cruising duration is improved. When the difference between the real-time temperature and the preset temperature threshold is smaller than or equal to the second difference, the fact that the real-time temperature of the current executing mechanism is close to the highest threshold temperature or the lowest threshold temperature is indicated, if thermal management is not performed, certain influence can be caused on the running of the vehicle or the experience of a user, and therefore the adjusting request is executed at the moment so as to perform thermal management control on the executing mechanism, and therefore the running and the user experience of the vehicle are guaranteed.
The energy saving thermal management control logic described above may be executed to end the ride or to navigate out. In the executing process, the executing mechanism can temporarily withdraw from the work or finish the work in advance without influencing the safety and the use effect of the vehicle, thereby realizing the effect of reducing the energy consumption.
When the power saving condition is no longer met, conventional thermal management control logic may be switched to immediately respond to the throttling request for thermal management control.
Referring to fig. 5, a thermal management control apparatus of a vehicle according to another embodiment of the present invention includes:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the driving style of a current driver and the navigation information of a vehicle, wherein the navigation information comprises predicted passing time and road condition information;
the processing module is used for determining road condition correction coefficients of all the driving road sections according to the road condition information and determining driving style correction coefficients according to the driving style;
the correction module is used for correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient so as to obtain the residual driving duration;
the judging module is used for judging whether the vehicle meets the energy-saving condition or not, wherein the judging module comprises judging whether the residual driving duration is smaller than a preset duration or not;
and the execution module is used for carrying out energy-saving thermal management control on an execution mechanism of the vehicle when the vehicle meets the energy-saving condition.
The thermal management control device for a vehicle of the present invention has similar technical effects to those of the thermal management control method for a vehicle described above, and will not be described in detail herein.
A vehicle of another embodiment of the invention includes a memory for storing a computer program and a processor for implementing a thermal management control method of a vehicle as described above when the computer program is executed.
Wherein the vehicle is not limited to a fuel vehicle and a new energy vehicle.
The vehicle of the present invention has similar technical effects to the thermal management control device of the vehicle described above, and will not be described in detail herein.
A computer-readable storage medium of another embodiment of the present invention has stored thereon a computer program which, when executed by a processor, implements the thermal management control method of a vehicle as described above.
The computer readable storage medium of the present invention has similar technical effects to the above-mentioned thermal management control method of the vehicle, and will not be described in detail herein.
In general, the computer instructions for carrying out the methods of the present invention may be carried in any combination of one or more computer-readable storage media. The non-transitory computer-readable storage medium may include any computer-readable medium, except the signal itself in temporary propagation.
The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" language or similar programming languages, and in particular, the Python language suitable for neural network computing and TensorFlow, pyTorch-based platform frameworks may be used. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Although the invention is disclosed above, the scope of the invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and such changes and modifications would be within the scope of the invention.
Claims (10)
1. A thermal management control method of a vehicle, characterized by comprising:
acquiring the driving style of a current driver and navigation information of a vehicle, wherein the navigation information comprises estimated passing time and road condition information;
determining a road condition correction coefficient according to the road condition information, and determining a driving style correction coefficient according to the driving style;
correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient to obtain the residual driving duration;
judging whether the vehicle meets an energy-saving condition or not, wherein the judging comprises judging whether the residual running duration is smaller than a preset duration or not;
and when the vehicle meets the energy-saving condition, performing energy-saving thermal management control on an executing mechanism of the vehicle.
2. The method of controlling thermal management of a vehicle according to claim 1, wherein, when the vehicle satisfies the energy saving condition, performing energy saving thermal management control on an actuator of the vehicle includes:
and switching the conventional thermal management control logic adopted by the executing mechanism into energy-saving thermal management control logic.
3. The method of thermal management control of a vehicle of claim 2, wherein the conventional thermal management control logic comprises:
when receiving an adjustment request for adjusting the temperature of the execution mechanism, executing the adjustment request in real time so as to perform thermal management control on the execution mechanism;
the energy-saving thermal management control logic includes:
when receiving an adjustment request for adjusting the temperature of the executing mechanism, acquiring the real-time temperature of the executing mechanism, and comparing the real-time temperature with a preset temperature threshold;
when the real-time temperature does not reach the preset temperature threshold value and the difference value between the real-time temperature and the preset temperature threshold value is larger than a first difference value, canceling execution of the adjustment request;
and when the difference value between the real-time temperature and the preset temperature threshold value is smaller than or equal to a second difference value, executing the adjustment request to perform thermal management control on the executing mechanism, wherein the second difference value is smaller than or equal to the first difference value.
4. The method of thermal management control of a vehicle according to claim 1, characterized in that the obtaining of the driving style of the current driver includes:
acquiring operating parameters of an accelerator pedal, a brake pedal and a steering wheel, and acquiring the speed and the electricity consumption of the vehicle;
and determining a driving style coefficient for representing the driving style according to the operating parameter, the vehicle speed and the electricity consumption.
5. The method according to any one of claims 1 to 4, characterized in that the determining whether the vehicle satisfies an energy saving condition further includes:
judging whether the vehicle is in a preset driving mode or not; and/or
Judging whether a driving style coefficient used for representing the driving style is smaller than a preset coefficient, wherein the driving style coefficient is positively related to the energy consumption degree of the driver; and/or
Judging whether the actual temperature of the executing mechanism meets a preset condition or not; and/or
Judging whether the temperature change rate of the executing mechanism is smaller than a preset rate or not.
6. The method according to any one of claims 1 to 4, characterized in that the navigation information includes the estimated passage time of each travel section and the road condition information, and the remaining travel time length is a sum of the estimated passage times corrected for each travel section.
7. The method according to any one of claims 1 to 4, wherein the road condition information includes a road section length and a congestion situation, and the road condition correction coefficient includes a length correction coefficient determined by the road section length and a congestion correction coefficient determined by the congestion situation; the correcting the estimated transit time according to the road condition correction coefficient and the driving style correction coefficient corresponding to the current driver comprises the following steps:
and determining the product of the estimated transit time and the driving style correction coefficient, the length correction coefficient and the congestion correction coefficient as the corrected estimated transit time.
8. A thermal management control apparatus of a vehicle, characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the driving style of a current driver and the navigation information of a vehicle, wherein the navigation information comprises predicted passing time and road condition information;
the processing module is used for determining a road condition correction coefficient according to the road condition information and determining a driving style correction coefficient according to the driving style;
the correction module is used for correcting the estimated passing time according to the road condition correction coefficient and the driving style correction coefficient so as to obtain the residual driving duration;
the judging module is used for judging whether the vehicle meets the energy-saving condition or not, wherein the judging module comprises judging whether the residual driving duration is smaller than a preset duration or not;
and the execution module is used for carrying out energy-saving thermal management control on an execution mechanism of the vehicle when the vehicle meets the energy-saving condition.
9. A vehicle comprising a memory for storing a computer program and a processor for implementing the thermal management control method of a vehicle according to any one of claims 1 to 7 when the computer program is executed.
10. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed by a processor, implements the thermal management control method of a vehicle according to any one of claims 1 to 7.
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| CN202310512585.4A CN116749704A (en) | 2023-05-08 | 2023-05-08 | Vehicle thermal management control method and device, vehicle and readable storage medium |
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| CN202310512585.4A CN116749704A (en) | 2023-05-08 | 2023-05-08 | Vehicle thermal management control method and device, vehicle and readable storage medium |
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