CN111422070A - Method and device for detecting endurance mileage and new energy vehicle - Google Patents
Method and device for detecting endurance mileage and new energy vehicle Download PDFInfo
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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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
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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
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The application discloses a method and a device for detecting endurance mileage and a new energy vehicle, in particular to a method and a device for detecting endurance mileage, which are used for acquiring the residual gas amount and the fuel consumption rate of a hydrogen fuel cell of the new energy vehicle; calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate; calculating the residual energy of a power battery of the new energy vehicle; acquiring the current vehicle energy consumption of the power battery; calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption; and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle. In the technical scheme, the current whole vehicle energy consumption is taken as an important factor for reference in the calculation of the endurance mileage, and the current whole vehicle energy consumption can fully reflect the real energy consumption state of the vehicle, so that the total endurance mileage finally obtained and displayed to the user can reflect the real endurance mileage, and the driving experience of the user is improved.
Description
Technical Field
The application relates to the technical field of new energy, in particular to a method and a device for detecting endurance mileage and a new energy vehicle.
Background
At present, new energy vehicles are greatly popularized, and common users are more interested in endurance mileage because the charging of the current new energy vehicles is not convenient. However, since the measurement and calculation of the mileage are different from the actual use state, the mileage of the vehicle is far from the number of the manufacturer, and the actual mileage is far from the value displayed by the meter during the actual use.
In fact, in the actual use process of the new energy vehicle, especially for heavy trucks in new energy, the influence of external environmental factors on the endurance mileage is very large, which directly causes the endurance mileage to greatly deviate from the original ideal state, wherein the displayed endurance mileage cannot reflect the actual endurance mileage due to the use of loads, air conditioners and the like, so that the driving experience of users is reduced.
Disclosure of Invention
In view of this, the application provides a method and a device for detecting a cruising mileage, and a new energy vehicle, which are used for calculating an actual cruising mileage of the new energy vehicle, so that a user can know the current actual cruising mileage in time, and the driving experience of the user is improved.
In order to achieve the above object, the following solutions are proposed:
a driving mileage detection method is applied to a new energy vehicle, wherein the new energy vehicle comprises a hydrogen fuel cell and a power cell, and the detection method comprises the following steps:
acquiring the residual gas amount and the fuel consumption rate of the hydrogen fuel cell;
calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate;
calculating the residual energy of the power battery;
acquiring the current overall energy consumption of the new energy vehicle;
calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption;
and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle.
Optionally, the calculating the remaining energy of the power battery includes:
acquiring a current SOC value of the power battery;
and multiplying the current SOC value by the total energy of the power battery to obtain the residual energy.
Optionally, the vehicle energy consumption includes electric energy consumption of a driving motor, electric energy consumption of the hydrogen fuel cell, and electric energy consumption of all high-voltage accessories.
Optionally, the acquiring the current vehicle energy consumption of the power battery includes:
if the total mileage of the new energy vehicle is less than the dynamic updating period, acquiring a calibration quantity of the new energy vehicle, and taking the calibration quantity as the current whole vehicle energy consumption;
if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is less than the dynamic update period, reading the whole vehicle energy consumption of the previous period as the current whole vehicle energy consumption;
and if the total mileage of the new energy vehicle is greater than the dynamic updating period and the mileage of the current driving cycle is greater than the dynamic updating period, reading the current whole vehicle energy consumption as the current whole vehicle energy consumption.
Optionally, the method for acquiring the current vehicle energy consumption of the power battery further includes the following steps:
and temporarily storing the current whole vehicle energy consumption as the whole vehicle energy consumption in the last period every time one dynamic update period passes.
A driving range detection device is applied to a new energy vehicle, the new energy vehicle comprises a hydrogen fuel cell and a power cell, and the detection device comprises:
a first acquisition module for acquiring a remaining gas amount and a fuel consumption rate of the hydrogen fuel cell;
the first calculation module is used for calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate;
the second calculation module is used for calculating the residual energy of the power battery;
the second acquisition module is used for acquiring the current overall vehicle energy consumption of the new energy vehicle;
the third calculation module is used for calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption;
and the calculation output module is used for calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage and outputting the actual endurance mileage to a display interface of the new energy vehicle.
Optionally, the second computing module includes:
the numerical value acquisition unit is used for acquiring the current SOC value of the power battery;
and the calculation execution unit is used for multiplying the current SOC value by the total energy of the power battery to obtain the residual energy.
Optionally, the vehicle energy consumption includes electric energy consumption of a driving motor, electric energy consumption of the hydrogen fuel cell, and electric energy consumption of all high-voltage accessories.
Optionally, the second obtaining module includes:
the first obtaining unit is used for obtaining a standard quantity of the new energy automobile if the total mileage of the new energy automobile is smaller than a dynamic updating period, and taking the standard quantity as the current whole automobile energy consumption;
the second acquisition unit is used for reading the whole vehicle energy consumption of the previous period as the current whole vehicle energy consumption if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is less than the dynamic update period;
and the third acquisition unit is used for reading the current whole vehicle energy consumption as the current whole vehicle energy consumption if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is greater than the dynamic update period.
Optionally, the second obtaining module further includes:
and the data temporary storage unit is used for temporarily storing the current whole vehicle energy consumption as the whole vehicle energy consumption in the previous period every time one dynamic update period passes.
A new energy vehicle is provided with the detection device.
According to the technical scheme, the application discloses a method and a device for detecting the endurance mileage and a new energy vehicle, and particularly aims to obtain the residual gas quantity and the fuel consumption rate of a hydrogen fuel cell of the new energy vehicle; calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate; calculating the residual energy of a power battery of the new energy vehicle; acquiring the current vehicle energy consumption of the power battery; calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption; and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle. In the technical scheme, the current whole vehicle energy consumption is taken as an important factor for reference in the calculation of the endurance mileage, and the current whole vehicle energy consumption can fully reflect the real energy consumption state of the vehicle, so that the total endurance mileage finally obtained and displayed to the user can reflect the real endurance mileage, the user can know the actual endurance mileage in time, and the driving experience of the user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for detecting driving mileage according to an embodiment of the present application;
fig. 2 is a block diagram of a mileage detection apparatus according to an embodiment of the present application;
FIG. 3 is a block diagram of another apparatus for detecting driving range according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of another apparatus for detecting driving range according to an embodiment of the present disclosure;
fig. 5 is a block diagram of another apparatus for detecting driving range according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
Fig. 1 is a flowchart of a method for detecting a driving range according to an embodiment of the present application.
As shown in fig. 1, the detection method of the embodiment is applied to new energy vehicles such as electric vehicles, hybrid trucks and the like, and is used for detecting and calculating relevant parameters of the new energy vehicles, and obtaining and displaying the current driving range of the new energy vehicles. The present embodiment describes the detection method by taking a hydrogen fuel cell vehicle as an example, and the detection method includes the steps of:
and S1, acquiring the residual gas quantity and the fuel consumption rate of the hydrogen fuel cell.
For the hydrogen fuel cell automobile, the remaining amount of the hydrogen fuel cell of the vehicle is acquired, and at the same time, the fuel consumption rate, that is, the amount of hydrogen gas consumed per unit time is acquired. The method for obtaining the parameters is to obtain the parameters through a CAN bus of the vehicle.
And S2, calculating the first endurance mileage according to the residual air quantity and the fuel consumption rate.
That is, the remaining amount of the acquired hydrogen gas is divided by the fuel consumption rate to obtain the driving range in the case where only the hydrogen fuel cell operates alone, which will be referred to as the first driving range for convenience of description.
And S3, calculating the residual energy of the power battery.
The power battery refers to a battery for driving the hydrogen fuel cell vehicle in the hydrogen fuel cell vehicle. The premise for calculating the residual energy is to obtain the total energy of the power battery of the vehicle, the total energy is a fixed parameter of the power battery, and the total energy is reduced along with the service life of the power battery. On the premise that the total energy is determined, the residual energy is calculated by the following steps:
firstly, the SOC value of the power battery is obtained and is read through a CAN bus of the vehicle.
The soc (state of charge) value, i.e. the state of charge, is used to reflect the remaining capacity of the battery, and is numerically defined as the ratio of the remaining capacity to the battery capacity, expressed in percent. The value range of the battery charging indicator is 0-1, when the SOC is 0, the battery is completely discharged, and when the SOC is 1, the battery is completely charged.
The SOC of the battery cannot be directly measured, and the SOC can be estimated only from parameters such as the terminal voltage, the charge-discharge current, and the internal resistance of the battery. These parameters are also influenced by various uncertain factors such as battery aging, environmental temperature changes and automobile driving states. The SOC value is generally calculated by the following method:
1. the internal resistance method, the internal resistance measurement method, is to excite the battery with alternating current of different frequencies, measure the alternating current resistance in the battery, and obtain the SOC estimation value through the established calculation model. The SOC value of the battery under a certain constant current discharging condition is reflected by the battery SOC measured by the method.
2. The linear model method is based on the SOC variation, current, voltage and last time point SOC value, and is suitable for low current and SOC gradual change conditions, and has high robustness to measurement error and wrong initial conditions.
3. The Kalman filtering method is based on the ampere-hour integration method. The main idea of the Kalman filtering method is to make the optimal estimation of the state of the power system in the sense of minimum variance. The method is applied to the SOC estimation of the battery, the battery is regarded as a power system, and the state of charge is an internal state of the system.
The MCU in the hydrogen fuel cell vehicle in the application CAN calculate the SOC value according to the corresponding parameters of the power battery, so that the SOC value CAN be obtained only through the CAN bus.
When the SOC value of the power battery is acquired, the remaining energy of the power battery can be obtained by multiplying the SOC value by the total energy of the power battery.
And S4, acquiring the current overall vehicle energy consumption of the new energy vehicle.
The energy consumption of the whole vehicle comprises the electric energy consumption of a driving motor of the vehicle and the electric energy consumption of high-voltage accessories such as accessories of a hydrogen fuel cell of the vehicle, an air conditioner, a steering pump, an inflating pump and the like.
On the basis of obtaining more accurate voltage and current, the current energy consumption of the whole vehicle can be obtained by multiplying the voltage and the current. The current calculation standard of the whole vehicle energy consumption is 5 kilometers, and the dynamic update period of the numerical value is 0.5 kilometer. In the process of acquiring the current energy consumption of the whole vehicle, the acquisition operation is executed according to the following rule:
1) if the total mileage of the vehicle is less than the dynamic update period, that is, the total driving mileage of the vehicle is still less than the dynamic update period, a calibration quantity when the vehicle leaves the factory is obtained as the energy consumption of the current vehicle, and the numerical value of the calibration quantity is watt hour/5 kilometers, or milliwatt hour/5 kilometers. Other values may of course be used.
2) If the total mileage of the vehicle exceeds the dynamic updating period, namely the total driving mileage exceeds the 0.5 kilometer, judging whether the current driving cycle exceeds the dynamic updating period, and if the current driving cycle is smaller than the dynamic updating period, taking the whole vehicle energy consumption of the previous dynamic updating period as the current whole vehicle energy consumption.
3) And if the total mileage of the vehicle exceeds the dynamic updating period and the current driving cycle exceeds the dynamic updating period, reading the whole vehicle energy consumption in the current period as the current whole vehicle energy consumption.
The driving cycle refers to the complete process from ignition, driving to flameout for the internal combustion engine automobile, and refers to the complete process from power-on, driving to power-off for the new energy vehicle of the present application.
In addition, when a dynamic update period is passed, the whole vehicle energy consumption of the dynamic update period is temporarily stored, so that the current whole vehicle energy consumption in the driving cycle is taken under the condition that the driving cycle of the vehicle cannot exceed the dynamic update period.
And S5, calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption.
And calculating the driving range based on the power battery by a method of dividing the residual energy by the current vehicle energy consumption on the basis of obtaining the residual energy and the current vehicle energy consumption, and describing the driving range calculated on the basis of the power battery as a second driving range in order to distinguish the driving range based on the hydrogen fuel battery.
And S6, calculating and outputting the total endurance mileage according to the first endurance mileage and the second endurance mileage.
The total driving range can be obtained only by adding the first driving range and the second driving range, and after the total driving range is obtained, the total driving range is output to a display interface of the new energy vehicle in a numerical mode, so that a driver can read the total driving range at any time.
The display interface refers to a display interface of display equipment in a cab of the new energy vehicle, and can be a display interface of a traveling computer or a display interface of a corresponding vehicle machine.
As can be seen from the above technical solutions, the embodiment provides a method for detecting a driving range, which is applied to a new energy vehicle, specifically to obtain a remaining gas amount and a fuel consumption rate of a hydrogen fuel cell of the new energy vehicle; calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate; calculating the residual energy of a power battery of the new energy vehicle; acquiring the current vehicle energy consumption of the power battery; calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption; and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle. In the technical scheme, the current whole vehicle energy consumption is taken as an important factor for reference in the calculation of the endurance mileage, and the current whole vehicle energy consumption can fully reflect the real energy consumption state of the vehicle, so that the total endurance mileage finally obtained and displayed to the user can reflect the real endurance mileage, the user can know the actual endurance mileage in time, and the driving experience of the user is improved.
Example two
Fig. 2 is a block diagram of a device for detecting driving range according to an embodiment of the present application.
As shown in fig. 2, the detection device of the embodiment is applied to new energy vehicles such as electric vehicles, hybrid vehicles, and hybrid trucks, and specifically may be an independent electronic device, or may also be a functional module of an MCU in the vehicle, and specifically configured to detect and calculate relevant parameters of the new energy vehicle, and obtain and display a current driving range of the new energy vehicle. The present embodiment describes the detection apparatus by taking a hydrogen fuel cell vehicle as an example, and the detection apparatus includes a first acquisition module 10, a first calculation module 20, a second calculation module 30, a second acquisition module 40, a third calculation module 50, and a calculation output module 60.
The first obtaining module is used for obtaining the residual gas quantity and the fuel consumption rate of the hydrogen fuel cell.
For the hydrogen fuel cell automobile, the remaining amount of the hydrogen fuel cell of the vehicle is acquired, and at the same time, the fuel consumption rate, that is, the amount of hydrogen gas consumed per unit time is acquired. The method for obtaining the parameters is to obtain the parameters through a CAN bus of the vehicle.
The first calculation module is used for calculating a first endurance mileage according to the residual air quantity and the fuel consumption rate.
That is, the remaining amount of the acquired hydrogen gas is divided by the fuel consumption rate to obtain the driving range in the case where only the hydrogen fuel cell operates alone, which will be referred to as the first driving range for convenience of description.
The second calculation module is used for calculating the residual energy of the power battery.
The power battery refers to a battery for driving the hydrogen fuel cell vehicle in the hydrogen fuel cell vehicle. The premise for calculating the residual energy is to obtain the total energy of the power battery of the vehicle, the total energy is a fixed parameter of the power battery, and the total energy is reduced along with the service life of the power battery. The second calculation module specifically includes a numerical value obtaining unit 31 and a calculation execution unit 32, as shown in fig. 3.
The numerical value acquisition unit is used for acquiring the SOC value of the power battery, and the SOC value is read through a CAN bus of the vehicle.
The soc (state of charge) value, i.e. the state of charge, is used to reflect the remaining capacity of the battery, and is numerically defined as the ratio of the remaining capacity to the battery capacity, expressed in percent. The value range of the battery charging indicator is 0-1, when the SOC is 0, the battery is completely discharged, and when the SOC is 1, the battery is completely charged.
The SOC of the battery cannot be directly measured, and the SOC can be estimated only from parameters such as the terminal voltage, the charge-discharge current, and the internal resistance of the battery. These parameters are also influenced by various uncertain factors such as battery aging, environmental temperature changes and automobile driving states. The SOC value is generally calculated by the following method:
1. the internal resistance method, the internal resistance measurement method, is to excite the battery with alternating current of different frequencies, measure the alternating current resistance in the battery, and obtain the SOC estimation value through the established calculation model. The SOC value of the battery under a certain constant current discharging condition is reflected by the battery SOC measured by the method.
2. The linear model method is based on the SOC variation, current, voltage and last time point SOC value, and is suitable for low current and SOC gradual change conditions, and has high robustness to measurement error and wrong initial conditions.
3. The Kalman filtering method is based on the ampere-hour integration method. The main idea of the Kalman filtering method is to make the optimal estimation of the state of the power system in the sense of minimum variance. The method is applied to the SOC estimation of the battery, the battery is regarded as a power system, and the state of charge is an internal state of the system.
The MCU in the hydrogen fuel cell vehicle in the application CAN calculate the SOC value according to the corresponding parameters of the power battery, so that the SOC value CAN be obtained only through the CAN bus.
And the calculation execution unit is used for multiplying the SOC value and the total energy of the power battery under the condition that the SOC value of the power battery is acquired by the numerical value acquisition unit, so that the residual energy of the power battery can be acquired.
The second acquisition module is used for acquiring the current overall vehicle energy consumption of the new energy vehicle.
The energy consumption of the whole vehicle comprises the electric energy consumption of a driving motor of the vehicle and the electric energy consumption of high-voltage accessories such as accessories of a hydrogen fuel cell of the vehicle, an air conditioner, a steering pump, an inflating pump and the like.
On the basis of obtaining more accurate voltage and current, the current energy consumption of the whole vehicle can be obtained by multiplying the voltage and the current. The current calculation standard of the whole vehicle energy consumption is 5 kilometers, and the dynamic update period of the numerical value is 0.5 kilometer. The second acquiring module specifically includes a first acquiring unit 41, a second acquiring unit 42, and a third acquiring unit 43, as shown in fig. 4.
The first obtaining unit obtains a calibration quantity when the vehicle leaves the factory as the energy consumption of the current vehicle only when the total mileage of the vehicle is less than the dynamic update period, that is, the total driving mileage of the vehicle is still less than the dynamic update period, and of course, the numerical value of the calibration quantity is also watt hour/5 kilometer, or milliwatt hour/5 kilometer. Other values may of course be used.
And the second acquisition unit is used for taking the whole vehicle energy consumption of the last dynamic update period as the current whole vehicle energy consumption only when the total mileage of the vehicle exceeds the dynamic update period, namely the total driving mileage exceeds the 0.5 kilometer and the current driving cycle is smaller than the dynamic update period.
And the third acquisition unit reads the whole vehicle energy consumption in the current period as the current whole vehicle energy consumption only when the total mileage of the vehicle exceeds the dynamic update period and the current driving cycle exceeds the dynamic update period.
The driving cycle refers to the complete process from ignition, driving to flameout for the internal combustion engine automobile, and refers to the complete process from power-on, driving to power-off for the new energy vehicle of the present application.
In addition, the second obtaining module further includes a data temporary storage unit 44, as shown in fig. 5, when a dynamic update period elapses, the entire vehicle energy consumption of the dynamic update period is temporarily stored, so as to be used as the current entire vehicle energy consumption in the driving cycle under the condition that the driving cycle of the vehicle cannot exceed the dynamic update period.
And the third calculating module is used for calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption.
And calculating the driving range based on the power battery by a method of dividing the residual energy by the current vehicle energy consumption on the basis of obtaining the residual energy and the current vehicle energy consumption, and describing the driving range calculated on the basis of the power battery as a second driving range in order to distinguish the driving range based on the hydrogen fuel battery.
And the calculation output module is used for calculating and outputting the total endurance mileage according to the first endurance mileage and the second endurance mileage.
The total driving range can be obtained only by adding the first driving range and the second driving range, and after the total driving range is obtained, the total driving range is output to a display interface of the new energy vehicle in a numerical mode, so that a driver can read the total driving range at any time.
The display interface refers to a display interface of display equipment in a cab of the new energy vehicle, and can be a display interface of a traveling computer or a display interface of a corresponding vehicle machine.
As can be seen from the above technical solutions, the present embodiment provides a device for detecting a driving range, which is applied to a new energy vehicle, and is specifically used for acquiring a remaining gas amount and a fuel consumption rate of a hydrogen fuel cell of the new energy vehicle; calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate; calculating the residual energy of a power battery of the new energy vehicle; acquiring the current vehicle energy consumption of the power battery; calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption; and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle. In the technical scheme, the current whole vehicle energy consumption is taken as an important factor for reference in the calculation of the endurance mileage, and the current whole vehicle energy consumption can fully reflect the real energy consumption state of the vehicle, so that the total endurance mileage finally obtained and displayed to the user can reflect the real endurance mileage, the user can know the actual endurance mileage in time, and the driving experience of the user is improved.
EXAMPLE III
The present embodiment provides a new energy vehicle provided with the detection device disclosed in the previous embodiment.
The detection device is specifically used for acquiring the residual gas quantity and the fuel consumption rate of the hydrogen fuel cell of the new energy vehicle; calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate; calculating the residual energy of a power battery of the new energy vehicle; acquiring the current vehicle energy consumption of the power battery; calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption; and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle. In the technical scheme, the current whole vehicle energy consumption is taken as an important factor for reference in the calculation of the endurance mileage, and the current whole vehicle energy consumption can fully reflect the real energy consumption state of the vehicle, so that the total endurance mileage finally obtained and displayed to the user can reflect the real endurance mileage, the user can know the actual endurance mileage in time, and the driving experience of the user is improved.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The technical solutions provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (11)
1. A method for detecting driving mileage is applied to a new energy vehicle, the new energy vehicle comprises a hydrogen fuel cell and a power cell, and the method for detecting driving mileage comprises the following steps:
acquiring the residual gas amount and the fuel consumption rate of the hydrogen fuel cell;
calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate;
calculating the residual energy of the power battery;
acquiring the current overall energy consumption of the new energy vehicle;
calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption;
and calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage, and outputting the actual endurance mileage to a display interface of the new energy vehicle.
2. The detection method according to claim 1, wherein said calculating the remaining energy of the power battery comprises the steps of:
acquiring a current SOC value of the power battery;
and multiplying the current SOC value by the total energy of the power battery to obtain the residual energy.
3. The detection method according to claim 1, wherein the entire vehicle energy consumption includes electric power consumption of a drive motor, electric power consumption of the hydrogen fuel cell, and electric power consumption of all high-voltage accessories.
4. The detection method according to claim 1, wherein the step of obtaining the current vehicle energy consumption of the power battery comprises the steps of:
if the total mileage of the new energy vehicle is less than the dynamic updating period, acquiring a calibration quantity of the new energy vehicle, and taking the calibration quantity as the current whole vehicle energy consumption;
if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is less than the dynamic update period, reading the whole vehicle energy consumption of the previous period as the current whole vehicle energy consumption;
and if the total mileage of the new energy vehicle is greater than the dynamic updating period and the mileage of the current driving cycle is greater than the dynamic updating period, reading the current whole vehicle energy consumption as the current whole vehicle energy consumption.
5. The detection method according to claim 4, wherein the step of obtaining the current vehicle energy consumption of the power battery further comprises the steps of:
and temporarily storing the current whole vehicle energy consumption as the whole vehicle energy consumption in the last period every time one dynamic update period passes.
6. A detection device of driving mileage is applied to a new energy vehicle, the new energy vehicle comprises a hydrogen fuel cell and a power battery, and the detection device comprises:
a first acquisition module for acquiring a remaining gas amount and a fuel consumption rate of the hydrogen fuel cell;
the first calculation module is used for calculating a first endurance mileage according to the residual gas amount and the fuel consumption rate;
the second calculation module is used for calculating the residual energy of the power battery;
the second acquisition module is used for acquiring the current overall vehicle energy consumption of the new energy vehicle;
the third calculation module is used for calculating a second endurance mileage according to the residual energy and the current vehicle energy consumption;
and the calculation output module is used for calculating the actual endurance mileage of the new energy vehicle according to the first endurance mileage and the second endurance mileage and outputting the actual endurance mileage to a display interface of the new energy vehicle.
7. The detection apparatus of claim 6, wherein the second calculation module comprises:
the numerical value acquisition unit is used for acquiring the current SOC value of the power battery;
and the calculation execution unit is used for multiplying the current SOC value by the total energy of the power battery to obtain the residual energy.
8. The sensing device of claim 6, wherein the overall vehicle energy consumption includes power consumption of a drive motor, power consumption of the hydrogen fuel cell, and power consumption of all high voltage accessories.
9. The detection apparatus of claim 6, wherein the second acquisition module comprises:
the first obtaining unit is used for obtaining a standard quantity of the new energy automobile if the total mileage of the new energy automobile is smaller than a dynamic updating period, and taking the standard quantity as the current whole automobile energy consumption;
the second acquisition unit is used for reading the whole vehicle energy consumption of the previous period as the current whole vehicle energy consumption if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is less than the dynamic update period;
and the third acquisition unit is used for reading the current whole vehicle energy consumption as the current whole vehicle energy consumption if the total mileage of the new energy vehicle is greater than the dynamic update period and the mileage of the current driving cycle is greater than the dynamic update period.
10. The detection apparatus of claim 9, wherein the second acquisition module further comprises:
and the data temporary storage unit is used for temporarily storing the current whole vehicle energy consumption as the whole vehicle energy consumption in the previous period every time one dynamic update period passes.
11. A new energy vehicle, characterized in that, is provided with the detection device of any one of claims 6-10.
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