CN114435273A - Engine starting capability determining method, engine starting capability determining device, electronic equipment and storage medium - Google Patents
Engine starting capability determining method, engine starting capability determining device, electronic equipment and storage medium Download PDFInfo
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- CN114435273A CN114435273A CN202210027045.2A CN202210027045A CN114435273A CN 114435273 A CN114435273 A CN 114435273A CN 202210027045 A CN202210027045 A CN 202210027045A CN 114435273 A CN114435273 A CN 114435273A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
Abstract
The embodiment of the invention discloses a method and a device for determining the starting capability of an engine, electronic equipment and a storage medium. The method comprises the following steps: acquiring a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature; acquiring a current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power; the starting capability of the engine is corrected based on the consumed power, so that the accuracy of judging the starting capability of the vehicle is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of computers, in particular to a method and a device for determining the starting capability of an engine, electronic equipment and a storage medium.
Background
The starting process of the traditional fuel vehicle is that the engine is driven to a certain rotating speed by the starter (the engine needs to overcome internal resistance), oil injection and ignition are started subsequently, work done by the starter is completed by high-power discharge of the storage battery, and in the process that a user reuses the vehicle, the situation that the storage battery is frequently in power shortage, so that the discharging capacity is insufficient and the starting cannot be performed is caused, so that the potential risk that the storage battery is in power shortage can be found in time, the user is reminded to start the vehicle, and the generator is very important for charging the storage battery.
The prior art scheme is that whether the storage battery is insufficient is judged simply through the SOC of the storage battery, and the reminding is carried out when the SOC of the storage battery is lower than a certain preset threshold value. The judgment method is too simple and rough, the influence of different temperatures on the resistance of the engine is not considered, and the practical problems of battery aging and the like are not considered, so that the judgment result is not accurate, and therefore, how to provide a more efficient, reliable and accurate judgment method for the starting capability of the vehicle is necessary.
Disclosure of Invention
The invention provides an engine starting capability determining method, an engine starting capability determining device, electronic equipment and a storage medium, which are used for correcting the starting capability of an engine based on consumed power, so that the accuracy of judgment on the starting capability of a vehicle is improved.
In a first aspect, an embodiment of the present invention provides an engine startability determination method, including:
acquiring a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature;
acquiring a current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle;
determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
Optionally, the determining the battery discharging power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature includes:
acquiring a preset storage battery calibration discharge power database, and determining the calibration discharge power of the storage battery based on the storage battery temperature and the storage battery calibration discharge power database;
and determining the discharge power of the storage battery based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the calibrated discharge power.
Optionally, the determining the battery discharging power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature includes:
acquiring a preset storage battery calibration discharge power database, and determining the calibration discharge power of the storage battery based on the storage battery temperature and the storage battery calibration discharge power database;
and determining the discharge power of the storage battery based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the calibrated discharge power.
Optionally, the method further includes:
acquiring engine friction torque capacity and engine rotating speed of the engine at the engine water temperature;
determining the current engine starting resistance consumption maximum power corresponding to the engine water temperature based on the engine friction torque capacity and the engine rotating speed, and storing the current engine starting resistance consumption maximum power and the engine water temperature in the engine starting resistance consumption maximum power database.
Optionally, the determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the battery discharge power includes:
determining a difference between the battery discharge power and the power required for starting the vehicle, and taking the difference as the engine starting capability of the vehicle.
Optionally, after determining the engine starting capability of the vehicle, the method further comprises:
acquiring a preset starting capacity threshold value, and determining the starting capacity of the engine and a comparison result of the starting capacity threshold value;
and if the starting capacity of the engine is smaller than the starting capacity threshold value, generating starting prompt information of the vehicle.
Optionally, the starting prompt information includes a prompt information for starting as soon as possible and a prompt information for starting immediately;
correspondingly, the method for generating the starting prompt message of the vehicle comprises the following steps:
if the starting capacity of the engine is smaller than a first starting capacity threshold value, generating starting prompt information of the vehicle as soon as possible;
and if the starting capacity of the engine is smaller than a second starting capacity threshold value, generating prompt information for immediate starting of the vehicle.
In a second aspect, an embodiment of the present invention further provides an engine startability determination apparatus, including:
the storage battery discharging power determining module is used for acquiring a storage battery internal resistance weighting coefficient, a storage battery state of health weighting coefficient and a storage battery temperature of a storage battery in a vehicle, and determining the storage battery discharging power of the storage battery based on the storage battery internal resistance weighting coefficient, the storage battery state of health weighting coefficient and the storage battery temperature;
the vehicle starting required power determining module is used for acquiring the current engine water temperature of an engine in the vehicle, a preset maximum power database of engine starting resistance consumption and the load consumed power of the vehicle in the starting process, and determining the vehicle starting required power of the vehicle in the starting process;
an engine start capability determination module to determine an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement an engine starting capability determination method as provided by any of the embodiments of the invention.
In a fourth aspect, the embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the engine starting capability determining method provided by any of the embodiments of the present invention.
The technical scheme of the embodiment of the invention specifically comprises the steps of obtaining a battery internal resistance weighting coefficient, a battery health state weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery health state weighting coefficient and the battery temperature; more accurate discharge power of the storage battery is obtained; acquiring a current engine water temperature of an engine in a vehicle, a preset maximum power database of engine starting resistance consumption and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; the prediction of the starting capacity of the engine is more reliable based on the average value of the maximum power consumed by the historical starting resistance of the engine, and the power required by the starting of the engine obtained by adding the load consumed power is more practical; determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the discharge power of the storage battery; the obtained starting capability of the engine is more accurate, so that the judgment result is more reliable.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 is a schematic flow chart diagram illustrating a method for determining engine starting capability according to one embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a method for determining engine startability according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an engine startability determination device provided in a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an engine starting capability determining method according to an embodiment of the present invention, which is applicable to a case where the engine starting capability of a vehicle is determined before the vehicle is not started. The method may be performed by an engine starting capability determining device, which may be implemented in software and/or hardware.
Before describing the technical solution of the embodiment of the present invention, an exemplary description is first given to an application scenario in which the technical solution of the embodiment is implemented. Of course, the following application scenarios are only optional application scenarios, and this embodiment may also be implemented in other application scenarios, and the application scenarios of the implemented technical method are not limited in this embodiment. Specifically, the application scenarios include: currently, most existing methods for judging starting capability of a current engine are based on the SOC of a storage battery, and when the SOC is lower than a certain threshold value, an alarm is given; in some vehicle models, the battery temperature is increased to correct the vehicle model, and the SOC limit value is properly adjusted to be high at low temperature, but the problem that the discharging capacity is greatly different even if the SOC is the same after the battery is aged is also not considered.
Based on the technical problems, the technical scheme of the embodiment of the invention is mainly characterized in that the maximum power consumed by resistance in the starting process of the engine and the dischargeable power of the current state of the storage battery are calculated, a part of power consumed by a basic load is reserved, the current starting capability is judged after the two are compared, and if the starting risk exists, an instrument alarm is given, so that the judgment on the starting capability of the engine is more accurate.
Based on the technical idea, the technical scheme of the embodiment of the invention specifically determines the storage battery discharging power of the storage battery by acquiring the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the temperature of the storage battery in the vehicle and based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the temperature of the storage battery; more accurate discharge power of the storage battery is obtained; acquiring a current engine water temperature of an engine in a vehicle, a preset maximum power database of engine starting resistance consumption and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; the prediction of the starting capacity of the engine is more reliable based on the average value of the maximum power consumed by the historical starting resistance of the engine, and the power required by the starting of the engine obtained by adding the load consumed power is more practical; determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the discharge power of the storage battery; the obtained starting capability of the engine is more accurate, so that the judgment result is more reliable.
As shown in fig. 1, the method specifically includes the following steps:
s110, obtaining a battery internal resistance weighting coefficient, a battery health state weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery health state weighting coefficient and the battery temperature.
In the embodiment of the invention, the weighting coefficient of the internal resistance of the storage battery can be used for representing the actual available electric quantity of the storage battery; specifically, the internal resistance weighting coefficient of the storage battery can be obtained in real time through the storage battery sensing module. The battery state of health weighting coefficient can be used for representing the aging degree of the battery; specifically, the battery state of health weighting coefficient may be obtained in real time by the battery sensing module. The battery temperature may be used to represent the real-time temperature of the battery as it discharges; specifically, the battery temperature may be obtained by a battery sensing module.
Specifically, after the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the temperature of the storage battery are obtained, the storage battery parameters are sent to the electric quantity calculation module through the LIN bus, and the electric quantity calculation module can determine the discharge power of the storage battery based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the temperature of the storage battery.
Optionally, the method for determining the battery discharge power of the battery may include: acquiring a preset storage battery calibration discharge power database, and determining the calibration discharge power of the storage battery based on the storage battery temperature and the storage battery calibration discharge power database; and determining the storage battery discharge power of the storage battery based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the calibrated discharge power.
Specifically, a preset storage battery calibration discharge power database is obtained; the storage battery temperature in the storage battery calibration discharge power database corresponds to the calibration discharge power of the storage battery one by one. And matching the storage battery temperature of the storage battery with the storage battery temperature in the storage battery calibration discharge power database, and determining the calibration discharge power corresponding to the storage battery temperature in the database as the calibration discharge power of the storage battery in the vehicle. And further multiplying the calibrated discharge power by the internal resistance weighting coefficient of the storage battery and the health state weighting coefficient of the storage battery to obtain the discharge power of the storage battery.
It should be noted that, in the process of calculating the power of the storage battery, the technical solution provided by the embodiment of the present invention considers the actual conditions of the aging degree of the storage battery and the actual available electric quantity of the storage battery, so that the obtained result of the discharge power of the storage battery is more accurate, and the engine starting capability determined later is more accurate.
And S120, acquiring the current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and the load consumed power of the vehicle in the starting process, and determining the power required by the vehicle in the starting process of the vehicle.
In the embodiment of the invention, the power required for starting the vehicle can be understood as the power required for starting the engine. Since the engine is started, the relevant controller which must work generates load consumption power during the work. Therefore, in order to obtain more reliable power required for engine starting, the technical scheme of the embodiment determines the power required for vehicle starting during starting of the vehicle based on the load consumption power of the vehicle during starting and the maximum power consumed by the engine resistance of the engine during starting.
Alternatively, the method of determining the maximum power consumed by the engine resistance during the starting process of the engine in the present embodiment may include: in the maximum power database of the engine starting resistance consumption of the engine, a plurality of historical engine starting resistance consumption maximum powers corresponding to the current water temperature of the engine are read, and the average engine starting resistance consumption maximum power among the plurality of historical engine starting resistance consumption maximum powers is determined, so that the average engine starting resistance consumption maximum power is used as the maximum engine resistance consumption power of the engine in the starting process of the engine in the embodiment.
In the embodiment, a preset maximum power database of engine starting resistance consumption is obtained, and the water temperature of each engine in the database corresponds to the maximum power consumption of the engine starting resistance generated when a plurality of engines are started; because the starting environment is different, the maximum power consumption of the starting resistance of each engine corresponding to the same engine water temperature is possibly unequal; in order to reduce the error in calculating the power required for starting the vehicle in the embodiment, in the maximum power database for the engine starting resistance consumption of the engine, the maximum power consumption of a plurality of historical engine starting resistances corresponding to the current water temperature of the engine is read, and the average maximum power consumption of the engine starting resistance among the maximum power consumption of the plurality of historical engine starting resistances is determined, so that the maximum power consumption of the engine starting resistance corresponding to the current water temperature of the engine is more reliable.
It should be noted that the plurality of historical engine starting resistance maximum consumptions may be a plurality of historical engine starting resistance maximum consumptions generated during the starting process at the current engine water temperature that is recorded recently. Of course, in this embodiment, the number of the selected historical engine starting resistance consumed maximum power is not limited, and may be selected according to actual situations.
Further, the vehicle start required power during the vehicle start is determined based on the average engine start resistance consumed maximum power and the load consumed power.
It should be noted that, in the process of calculating the power required for starting the vehicle according to the technical solution provided by the embodiment of the present invention, the actual situation that the controller works during the starting process of the engine to generate the power consumed by the load is considered, so that the obtained power result required for starting the vehicle is more accurate, and the engine starting capability determined later is more accurate.
On the basis of the embodiment, the technical scheme provided by the embodiment of the invention also obtains the engine friction torque capacity and the engine rotating speed of the engine under the water temperature of the engine; determining the current maximum power consumption of the engine starting resistance corresponding to the engine water temperature based on the engine friction torque capacity and the engine rotating speed, storing the current maximum power consumption of the engine starting resistance and the engine water temperature in an engine starting resistance maximum power consumption database correspondingly, and determining the maximum power consumption of the engine starting resistance subsequently.
And S130, determining the engine starting capacity of the vehicle based on the power required by starting the vehicle and the discharge power of the storage battery.
In an embodiment of the present invention, a method of determining engine starting capability of a vehicle may include: the difference between the battery discharge power and the power required for vehicle starting is determined, and the difference is taken as the engine starting capability of the vehicle.
Specifically, the above process of determining the required starting power of the vehicle and the discharging power of the storage battery takes into account the current engine starting state of the vehicle and the real-time state of the storage battery, so that the obtained engine starting capability is more reliable.
The technical scheme of the embodiment of the invention specifically comprises the steps of obtaining a battery internal resistance weighting coefficient, a battery health state weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery health state weighting coefficient and the battery temperature; more accurate discharge power of the storage battery is obtained; acquiring a current engine water temperature of an engine in a vehicle, a preset maximum power database of engine starting resistance consumption and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; the prediction of the starting capacity of the engine is more reliable based on the average value of the maximum power consumed by the historical starting resistance of the engine, and the power required by the starting of the engine obtained by adding the load consumed power is more practical; determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the discharge power of the storage battery; the obtained starting capability of the engine is more accurate, so that the judgment result is more reliable.
Example two
Fig. 2 is a flowchart of an engine starting capability determining method according to a second embodiment of the present invention, and in this embodiment, based on the above embodiments, after "determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the battery discharge power" is added "to generate the start prompting message of the vehicle. "wherein explanations of the same or corresponding terms as those of the above-described embodiments are omitted. Referring to fig. 2, the present embodiment provides an engine startability determination method including:
s210, obtaining a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature.
S220, acquiring the current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and the load consumed power of the vehicle in the starting process, and determining the power required by the vehicle in the starting process of the vehicle.
And S230, determining the engine starting capacity of the vehicle based on the power required by starting the vehicle and the discharge power of the storage battery.
And S240, generating starting prompt information of the vehicle. .
In the embodiment of the invention, in order to avoid the situation that the vehicle cannot be started due to insufficient starting capability of the vehicle caused by the fact that the discharge power of the provided storage battery cannot support the starting power of the engine of the vehicle because of the low electric quantity of the storage battery, the starting prompting information of the vehicle is generated based on the starting capability of the engine and a preset starting capability threshold after the starting capability of the engine of the vehicle is determined.
Optionally, the method for generating the start prompt message of the vehicle may include: acquiring a preset starting capacity threshold value, and determining the starting capacity of the engine and a comparison result of the starting capacity threshold value; if the engine starting capability is smaller than the starting capability threshold value, the starting prompt information of the vehicle is generated.
In this embodiment, the start prompt information includes start prompt information and start prompt information as soon as possible; correspondingly, if the starting capacity of the engine is smaller than the first starting capacity threshold value, generating prompt information for starting the vehicle as soon as possible; if the engine starting capability is less than the second starting capability threshold, an immediate start prompt for the vehicle is generated.
In this embodiment, the value of the first starting capability threshold is greater than the second starting capability threshold, so that the immediate start prompt information corresponding to the second starting capability indicates that the current electric quantity of the storage battery is extremely low, and if the vehicle is not started immediately, there is a risk that the vehicle cannot be started later. Conversely, the prompt start information corresponding to the first startability threshold indicates that the current battery capacity is relatively low, and if the vehicle is not started within a certain time, there is also a risk that the vehicle cannot be started thereafter.
The technical scheme of the embodiment of the invention specifically comprises the steps of obtaining a battery internal resistance weighting coefficient, a battery health state weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery health state weighting coefficient and the battery temperature; more accurate discharge power of the storage battery is obtained; acquiring a current engine water temperature of an engine in a vehicle, a preset maximum power database of engine starting resistance consumption and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; the prediction of the starting capacity of the engine is more reliable based on the average value of the maximum power consumed by the historical starting resistance of the engine, and the power required by the starting of the engine obtained by adding the load consumed power is more practical; determining the engine starting capability of the vehicle based on the power required for starting the vehicle and the discharge power of the storage battery; the obtained starting capability of the engine is more accurate; acquiring a preset starting capacity threshold, and determining the starting capacity of the engine and a comparison result of the starting capacity threshold; if the starting capacity of the engine is smaller than the starting capacity threshold value, generating starting prompt information of the vehicle; therefore, the generated prompt information is more accurate and reliable.
The following is an embodiment of an engine starting capability determining apparatus provided by an embodiment of the present invention, which belongs to the same inventive concept as the engine starting capability determining methods of the above embodiments, and reference may be made to the above embodiments of the engine starting capability determining apparatus for details that are not described in detail in the embodiments of the engine starting capability determining apparatus.
EXAMPLE III
Fig. 3 is a schematic structural diagram of an engine starting capability determining device according to a third embodiment of the present invention, which is applicable to a case where the engine starting capability of the vehicle is determined before the vehicle is not started. The specific structure of the engine starting ability determining device includes: a battery discharge power determination module 310, a vehicle start required power determination module 320, and an engine start capability determination module 330; wherein the content of the first and second substances,
a battery discharge power determination module 310, configured to obtain a battery internal resistance weighting coefficient, a battery state of health weighting coefficient, and a battery temperature of a battery in a vehicle, and determine a battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient, and the battery temperature;
a vehicle starting required power determination module 320, configured to obtain a current engine water temperature of an engine in the vehicle, a preset maximum engine starting resistance consumption power database, and a load consumption power of the vehicle during starting, and determine a vehicle starting required power of the vehicle during starting;
an engine starting capability determination module 330 to determine an engine starting capability of the vehicle based on the power required for vehicle starting and the battery discharge power.
The technical scheme of the embodiment of the invention specifically comprises the steps of obtaining a battery internal resistance weighting coefficient, a battery health state weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery health state weighting coefficient and the battery temperature; more accurate discharge power of the storage battery is obtained; acquiring a current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle; the prediction of the starting capacity of the engine is more reliable based on the average value of the maximum power consumed by the historical starting resistance of the engine, and the power required by the starting of the engine obtained by adding the load consumed power is more practical; determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power; the obtained starting capability of the engine is more accurate, so that the judgment result is more reliable.
In addition to the above embodiments, the battery discharge power determination module 310 includes:
the calibration discharge power determining unit is used for acquiring a preset storage battery calibration discharge power database and determining the calibration discharge power of the storage battery based on the storage battery temperature and the storage battery calibration discharge power database;
and the storage battery discharge power determining unit is used for determining the storage battery discharge power of the storage battery based on the storage battery internal resistance weighting coefficient, the storage battery health state weighting coefficient and the calibrated discharge power.
On the basis of the above embodiments, the vehicle start required power determination module 320 includes:
an average engine starting resistance consumption maximum power determination unit, configured to read, in an engine starting resistance consumption maximum power database of the engine, a plurality of historical engine starting resistance consumption maximum powers corresponding to the current engine water temperature, and determine an average engine starting resistance consumption maximum power among the plurality of historical engine starting resistance consumption maximum powers;
a vehicle start required power determination unit for determining a vehicle start required power of the vehicle during a start based on the average engine start resistance consumed maximum power and the load consumed power.
On the basis of the above embodiments, the apparatus further includes:
an engine friction torque capacity and engine speed obtaining unit for obtaining the engine friction torque capacity and the engine speed of the engine under the engine water temperature;
and the current engine starting resistance consumption maximum power determining unit is used for determining the current engine starting resistance consumption maximum power corresponding to the engine water temperature based on the engine friction torque capacity and the engine rotating speed, and storing the current engine starting resistance consumption maximum power and the engine water temperature in the engine starting resistance consumption maximum power database correspondingly.
On the basis of the above embodiments, the engine startability determination module 330 includes:
an engine starting capability determining unit for determining a difference between the battery discharge power and the power required for starting the vehicle, and taking the difference as the engine starting capability of the vehicle
On the basis of the above embodiments, the apparatus further includes:
the comparison result determining unit is used for acquiring a preset starting capability threshold value after the engine starting capability of the vehicle is determined, and determining the engine starting capability and a comparison result of the starting capability threshold value;
and the starting prompt information generating unit is used for generating starting prompt information of the vehicle if the starting capability of the engine is smaller than the threshold value of the starting capability.
On the basis of the above embodiments, the start prompt information includes start prompt information and start prompt information as soon as possible;
correspondingly, the starting prompt information generating unit comprises:
the quick start prompt message generation word unit is used for generating quick start prompt messages of the vehicle if the starting capacity of the engine is smaller than a first starting capacity threshold value;
and the immediate start prompt information generation word unit is used for generating immediate start prompt information of the vehicle if the starting capability of the engine is smaller than a second starting capability threshold value.
The engine starting capability determining device provided by the embodiment of the invention can execute the engine starting capability determining method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the executing method.
It should be noted that, in the embodiment of the engine starting capability determining apparatus, the units and modules included in the apparatus are merely divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
Example four
Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. FIG. 4 illustrates a block diagram of an exemplary electronic device 12 suitable for use in implementing embodiments of the present invention. The electronic device 12 shown in fig. 4 is only an example and should not bring any limitation to the function and the scope of use of the embodiment of the present invention.
As shown in FIG. 4, the electronic device 12 is in the form of a general purpose computing electronic device. The components of electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. System memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and sample data acquisition by executing programs stored in the system memory 28, for example, implementing steps of an engine starting capability determining method provided by the embodiment of the present invention, the engine starting capability determining method including:
acquiring a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature;
acquiring current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in the starting process, and determining power required by vehicle starting in the starting process of the vehicle;
determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
Of course, those skilled in the art can understand that the processor may also implement the technical solution of the sample data obtaining method provided in any embodiment of the present invention.
EXAMPLE five
The fifth embodiment provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements, for example, the steps of an engine starting capability determining method provided by the fifth embodiment of the present invention, where the engine starting capability determining method includes:
acquiring a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature;
acquiring a current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle;
determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer-readable storage medium may be, for example but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. 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 the context of 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.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects 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 + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. 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 type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It will be understood by those skilled in the art that the modules or steps of the invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and optionally they may be implemented by program code executable by a computing device, such that it may be stored in a memory device and executed by a computing device, or it may be separately fabricated into various integrated circuit modules, or it may be fabricated by fabricating a plurality of modules or steps thereof into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. An engine startability determination method, which is applied to a vehicle drive system, comprising:
acquiring a battery internal resistance weighting coefficient, a battery state of health weighting coefficient and a battery temperature of a battery in a vehicle, and determining the battery discharge power of the battery based on the battery internal resistance weighting coefficient, the battery state of health weighting coefficient and the battery temperature;
acquiring a current engine water temperature of an engine in the vehicle, a preset maximum power consumption database of engine starting resistance and load consumed power of the vehicle in a starting process, and determining power required by vehicle starting in the starting process of the vehicle;
determining an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
2. The method of claim 1, wherein determining the battery discharge power of the battery based on the battery internal resistance weighting factor, the battery state of health weighting factor, and the battery temperature comprises:
acquiring a preset storage battery calibration discharge power database, and determining the calibration discharge power of the storage battery based on the storage battery temperature and the storage battery calibration discharge power database;
and determining the discharge power of the storage battery based on the internal resistance weighting coefficient of the storage battery, the health state weighting coefficient of the storage battery and the calibrated discharge power.
3. The method of claim 1, wherein the determining a vehicle start demand power for the vehicle during a start comprises:
reading a plurality of historical engine starting resistance consumption maximum powers corresponding to the current water temperature of the engine in an engine starting resistance consumption maximum power database of the engine, and determining an average engine starting resistance consumption maximum power among the plurality of historical engine starting resistance consumption maximum powers;
determining a vehicle start required power of the vehicle during a start based on the average engine start resistance consumed maximum power and the load consumed power.
4. The method of claim 1, further comprising:
acquiring engine friction torque capacity and engine rotating speed of the engine at the engine water temperature;
determining the current engine starting resistance consumption maximum power corresponding to the engine water temperature based on the engine friction torque capacity and the engine rotating speed, and storing the current engine starting resistance consumption maximum power and the engine water temperature in the engine starting resistance consumption maximum power database.
5. The method of claim 1, wherein said determining an engine starting capability of the vehicle based on the power required for vehicle start and the battery discharge power comprises:
determining a difference between the battery discharge power and the power required for starting the vehicle, and taking the difference as the engine starting capability of the vehicle.
6. The method of claim 1, after determining the engine start capability of the vehicle, further comprising:
acquiring a preset starting capacity threshold value, and determining the starting capacity of the engine and a comparison result of the starting capacity threshold value;
and if the starting capacity of the engine is smaller than the starting capacity threshold value, generating starting prompt information of the vehicle.
7. The method of claim 1, wherein the start-up prompt comprises an as-soon-as-possible start-up prompt and an immediate start-up prompt;
correspondingly, the method for generating the starting prompt message of the vehicle comprises the following steps:
if the starting capacity of the engine is smaller than a first starting capacity threshold value, generating starting prompt information of the vehicle as soon as possible;
and if the starting capacity of the engine is smaller than a second starting capacity threshold value, generating prompt information for immediate starting of the vehicle.
8. An engine startability determination device, characterized by comprising:
the storage battery discharging power determining module is used for acquiring a storage battery internal resistance weighting coefficient, a storage battery state of health weighting coefficient and a storage battery temperature of a storage battery in a vehicle, and determining the storage battery discharging power of the storage battery based on the storage battery internal resistance weighting coefficient, the storage battery state of health weighting coefficient and the storage battery temperature;
the vehicle starting required power determining module is used for acquiring the current engine water temperature of an engine in the vehicle, a preset maximum engine starting resistance consumption power database and the load consumed power of the vehicle in the starting process and determining the vehicle starting required power of the vehicle in the starting process;
an engine start capability determination module to determine an engine start capability of the vehicle based on the vehicle start required power and the battery discharge power.
9. An electronic device, comprising:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the engine startability determination method as recited in any one of claims 1-7.
10. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing an engine startability determination method as recited in any one of claims 1 to 7.
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| US20100154524A1 (en) * | 2008-12-18 | 2010-06-24 | Gm Global Technology Operations, Inc. | Cranking capability estimation for a vehicular starting system |
| US20120179312A1 (en) * | 2011-01-06 | 2012-07-12 | GM Global Technology Operations LLC | Method and apparatus for controlling operation of a hybrid powertrain during a key-on crank start event |
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