CN113866495A - Intelligent driving energy consumption and driving range testing system and method - Google Patents
Intelligent driving energy consumption and driving range testing system and method Download PDFInfo
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- CN113866495A CN113866495A CN202111005104.8A CN202111005104A CN113866495A CN 113866495 A CN113866495 A CN 113866495A CN 202111005104 A CN202111005104 A CN 202111005104A CN 113866495 A CN113866495 A CN 113866495A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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Abstract
The embodiment of the invention discloses a system and a method for testing intelligent driving energy consumption and driving range, which comprises a data acquisition device and a data processing device, wherein the data acquisition device comprises a load sensor module, a current sensor, a voltage sensor and a vehicle speed sensor, the data processing device comprises an upper computer and test software, the data acquisition device and the upper computer are configured in software, after the configuration is successful, the data acquisition device automatically acquires the load of an intelligent driving road, the voltage, the current and the vehicle speed of a vehicle in the intelligent driving process, and the data acquisition device reads a measured value and transmits the measured value to the upper computer; the data processing device processes the transmitted measured value to obtain an energy consumption value and a driving range, and the processed data is graphically and visually displayed. The intelligent driving method solves the problem of testing energy consumption and driving range in the intelligent driving process, is simple to operate, displays the test result curve, is convenient to check, and has clear data characteristics.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to a system and a method for testing intelligent driving energy consumption and driving range.
Background
Nowadays, the energy and environmental problems in the world are becoming more serious, and in order to solve the problems, almost all countries are seeking alternative energy, and new energy automobiles become an ideal choice due to low emission. Compared with the traditional household passenger vehicle, the maximum disadvantage of the new energy passenger vehicle is the driving range problem, the problems of how to calibrate the actual energy consumption and the driving range on the way of the current intelligent driving and how to visually embody the actual energy consumption and the driving range still exist, the driving range and the energy consumption of the new energy automobile are scientifically tested, and the development of the new energy automobile can be well driven.
Disclosure of Invention
In view of this, the embodiment of the invention provides a system and a method for testing intelligent driving energy consumption and driving range, which ensure the accuracy of energy consumption and driving range testing.
The embodiment of the invention discloses a system for testing intelligent driving energy consumption and driving range, which comprises a data acquisition device and a data processing device, wherein the data acquisition device comprises a load sensor module, a current sensor, a voltage sensor and a vehicle speed sensor, the data processing device comprises an upper computer and testing software, the data acquisition device and the upper computer are configured in software,
the load sensor module is used for acquiring the load of the intelligent driving road;
the current sensor is used for collecting the current of the vehicle in the intelligent driving process;
the voltage sensor is used for acquiring the voltage of the vehicle in the intelligent driving process;
the vehicle speed sensor is used for collecting the vehicle speed of the vehicle in the intelligent driving process.
Further, the upper computer software is written by labview.
Further, the device comprises a driving layer, a testing layer and a main function layer;
the driving layer initializes and configures an external sensor and an upper computer, and reads a measured value or specific data by using the sensor;
the sub-VI of the test layer can not be called mutually, and each sub-VI in the test layer is independent to finish the test sub-function;
the main function layer is used for setting or modifying parameters and visually displaying the test result.
Further, the data acquisition device acquires the current, the voltage and the speed of the vehicle in the speed changing process and the constant speed process.
The embodiment of the invention also discloses a method for testing the intelligent driving energy consumption and the driving range, which comprises the following steps:
opening the test software, and automatically initializing and configuring the data acquisition device and the upper computer;
after the configuration is successful, the data acquisition device automatically acquires the load of the intelligent driving road, the voltage, the current and the speed of the vehicle in the intelligent driving process, and reads the measured value and transmits the measured value to the upper computer;
and according to the three-layer structure of the driving layer, the testing layer and the main function layer, the data processing device processes the transmitted measured value to obtain an energy consumption value and a driving range, and graphically and visually displays the processed data.
The measured values were processed as follows:
the driving range BER, the energy consumption EC not conforming to CLTC and the energy consumption EC conforming to CLTC are calculated according to the following formulaDC，
BER is driving range, and the unit is kilometer (km);
EREESS,CCPbefore and after the test by the conventional working condition method, the unit of the electric energy variation of a vehicle-mounted rechargeable energy storage system, namely REESS is watt hour (Wh);
ECdcenergy consumption in watt-hours per kilometer (Wh/km) based on the variation of the REESS electrical energy;
c is the serial number of the test cycle;
n is the number of complete test cycles of vehicle running after the test by the conventional working condition method is finished, and the test cycles which are not finished in running are not contained;
ECDC,Cenergy consumption in watt-hours per kilometer (Wh/km) for the c-th test cycle based on the REESS electrical energy variation;
kc is the weighting factor for the c-th test cycle.
When the speed of a motor vehicle is less than passenger car circulation operating mode, intelligent driving consumption does:
EC is based on the amount of energy consumed from the outside, in watt-hours per kilometre (Wh/km);
EACthe measured amount of electricity from the outside is specified in watt-hours (Wh).
When the speed of a motor vehicle is passenger car circulation operating mode, the electric energy consumption among the intelligent driving process is:
after the vehicle test is finished, the vehicle is charged within 2h, the charging mode is consistent with that before the test, when the vehicle-mounted or external instrument displays that the REESS is fully charged, the charging is judged to be finished, and the external electric quantity is EAC。
When the alternating current charging mode is adopted, the electric quantity measuring equipment is arranged between a vehicle plug and the power supply equipment; if the vehicle only has the direct current charging mode or the checking mechanism determines that the direct current charging mode is selected, the electric quantity measuring device is arranged between the power supply device and the power grid.
The embodiment of the invention solves the problem of testing the energy consumption and the driving range in the intelligent driving process, has simple operation, curve display of the test result, convenient check and clear data characteristic, and ensures the accuracy of testing the energy consumption and the driving range.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
FIG. 2 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
The embodiment of the invention discloses a system for testing intelligent driving energy consumption and driving range, which comprises a data acquisition device and a data processing device, wherein the data acquisition device comprises a load sensor module, a current sensor, a voltage sensor and a vehicle speed sensor, the data processing device comprises an upper computer and testing software, the data acquisition device and the upper computer are configured in software,
the load sensor module is used for acquiring the intelligent driving road load Q;
the current sensor is used for collecting the current I of the vehicle in the intelligent driving process;
the voltage sensor is used for acquiring the voltage U of the vehicle in the intelligent driving process;
the vehicle speed sensor is used for collecting the vehicle speed V of the vehicle in the intelligent driving process.
In the embodiment of the invention, the upper computer software is written by labview.
In the embodiment of the invention, the device comprises a driving layer, a testing layer and a main function layer;
the driving layer initializes and configures an external sensor and an upper computer, and reads a measured value or specific data by using the sensor; the data acquisition device belongs to the driving layer.
The sub-VI of the test layer can not be called mutually, and each sub-VI in the test layer is independent to finish the test sub-function;
the main function layer is used for setting or modifying parameters and visually displaying the test result. The data processing device belongs to a test layer and a main function layer.
In the embodiment of the invention, the data acquisition device acquires the current, the voltage and the speed of the vehicle in the speed changing process and the constant speed process. The embodiment of the invention collects 2 speed change processes and 2 constant speed processes. That is, the current, voltage and vehicle speed of 4 vehicle operating states in total are collected.
The embodiment of the invention also discloses a method for testing the intelligent driving energy consumption and the driving range, which comprises the following steps:
opening the test software, and automatically initializing and configuring the data acquisition device and the upper computer;
after the configuration is successful, the data acquisition device automatically acquires the load of the intelligent driving road, the voltage, the current and the speed of the vehicle in the intelligent driving process, and reads the measured value and transmits the measured value to the upper computer;
and according to the three-layer structure of the driving layer, the testing layer and the main function layer, the data processing device processes the transmitted measured value to obtain an energy consumption value and a driving range, and graphically and visually displays the processed data.
The measured values were processed as follows:
the driving range BER, the energy consumption EC not conforming to CLTC and the energy consumption EC conforming to CLTC are calculated according to the following formulaDC，
BER is driving range, and the unit is kilometer (km);
EREESS,CCPbefore and after the test by the conventional working condition method, the unit of the electric energy variation of a vehicle-mounted rechargeable energy storage system, namely REESS is watt hour (Wh);
ECdcenergy consumption in watt-hours per kilometer (Wh/km) based on the variation of the REESS electrical energy;
c is the serial number of the test cycle;
n is the number of complete test cycles of vehicle running after the test by the conventional working condition method is finished, and the test cycles which are not finished in running are not contained;
ECDC,Cenergy consumption in watt-hours per kilometer (Wh/km) for the c-th test cycle based on the REESS electrical energy variation;
kc is the weighting factor for the c-th test cycle.
According to the real-time intelligent driving energy consumption and driving range data obtained through calculation, a characteristic curve (customized according to requirements, such as time on the abscissa or the number on the abscissa) is drawn, and a report (customized according to requirements, such as data in a certain time, testers and testing time can be output) is output.
When the vehicle speed is less than the cycle condition (CLTC) of the passenger vehicle, the intelligent driving consumption is as follows:
EC is based on the amount of energy consumed from the outside, in watt-hours per kilometre (Wh/km);
EACthe measured amount of electricity from the outside is specified in watt-hours (Wh).
When the speed of a motor vehicle is passenger car circulation operating mode, the electric energy consumption among the intelligent driving process is:
after the vehicle test is finished, the vehicle is charged within 2h, the charging mode is consistent with that before the test, when the vehicle-mounted or external instrument displays that the REESS is fully charged, the charging is judged to be finished, and the external electric quantity is EAC. When the alternating current charging mode is adopted, the electric quantity measuring equipment is arranged between a vehicle plug and the power supply equipment; if the vehicle only has the direct current charging mode or the checking mechanism determines that the direct current charging mode is selected, the electric quantity measuring device is arranged between the power supply device and the power grid.
The above description is only a preferred embodiment of the present invention, but other driving mechanisms including, but not limited to, motor driving and other driving sources are not intended to limit the present invention, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A test system for intelligent driving energy consumption and driving range is characterized by comprising a data acquisition device and a data processing device, wherein the data acquisition device comprises a load sensor module, a current sensor, a voltage sensor and a vehicle speed sensor, the data processing device comprises an upper computer and test software, the data acquisition device and the upper computer are in software configuration,
the load sensor module is used for acquiring the load of the intelligent driving road;
the current sensor is used for collecting the current of the vehicle in the intelligent driving process;
the voltage sensor is used for acquiring the voltage of the vehicle in the intelligent driving process;
the vehicle speed sensor is used for collecting the vehicle speed of the vehicle in the intelligent driving process.
2. The system of claim 1, wherein the upper computer software is written in labview.
3. The system for testing intelligent driving energy consumption and driving range of claim 2, comprising a driving layer, a testing layer and a main function layer;
the driving layer initializes and configures an external sensor and an upper computer, and reads a measured value or specific data by using the sensor;
the sub-VI of the test layer can not be called mutually, and each sub-VI in the test layer is independent to finish the test sub-function;
the main function layer is used for setting or modifying parameters and visually displaying the test result.
4. The system of claim 1, wherein the data acquisition device acquires current, voltage and speed of the vehicle during a speed change process and a constant speed process.
5. A method for testing intelligent driving energy consumption and driving range is characterized by comprising the following steps:
opening the test software, and automatically initializing and configuring the data acquisition device and the upper computer;
after the configuration is successful, the data acquisition device automatically acquires the load of the intelligent driving road, the voltage, the current and the speed of the vehicle in the intelligent driving process, and reads the measured value and transmits the measured value to the upper computer;
the data processing device processes the transmitted measured value to obtain an energy consumption value and a driving range, and the processed data is graphically and visually displayed.
6. The method for testing intelligent driving energy consumption and driving range according to claim 5, wherein the measured values are processed as follows:
the driving range BER, the energy consumption EC not conforming to CLTC and the energy consumption EC conforming to CLTC are calculated according to the following formulaDC，
BER is driving range, and the unit is kilometer (km);
EREESS,CCPbefore and after the test by the conventional working condition method, the unit of the electric energy variation of a vehicle-mounted rechargeable energy storage system, namely REESS is watt hour (Wh);
ECdcenergy consumption in watt-hours per kilometer (Wh/km) based on the variation of the REESS electrical energy;
c is the serial number of the test cycle;
n is the number of complete test cycles of vehicle running after the test by the conventional working condition method is finished, and the test cycles which are not finished in running are not contained;
ECDC,Cenergy consumption in watt-hours per kilometer (Wh/km) for the c-th test cycle based on the REESS electrical energy variation;
kc is the weighting factor for the c-th test cycle.
7. The method for testing the intelligent driving energy consumption and the driving range according to claim 5, wherein when the vehicle speed is less than the cycle condition of the passenger vehicle, the intelligent driving consumption is as follows:
EC is based on the amount of energy consumed from the outside, in watt-hours per kilometre (Wh/km);
EACthe measured amount of electricity from the outside is specified in watt-hours (Wh).
8. The method for testing the intelligent driving energy consumption and the driving range according to claim 5, wherein when the vehicle speed is a cycle condition of a passenger vehicle, the electric energy consumption in the intelligent driving process is as follows:
9. the method as claimed in claim 5, wherein the vehicle is charged within 2h after the vehicle test is finished, the charging method is the same as that before the test, when the vehicle-mounted or external instrument indicates that the REESS is fully charged, it is determined that the charging is finished, and the amount of electricity from the outside is EAC。
10. The method for testing intelligent driving energy consumption and driving range according to claim 9, wherein the electric quantity measuring device is installed between a vehicle plug and the power supply device in an alternating current charging mode; if the vehicle only has the direct current charging mode or the checking mechanism determines that the direct current charging mode is selected, the electric quantity measuring device is arranged between the power supply device and the power grid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444750A (en) * | 2020-09-23 | 2021-03-05 | 中汽研汽车检验中心（天津）有限公司 | Method for quickly testing driving range of electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444750A (en) * | 2020-09-23 | 2021-03-05 | 中汽研汽车检验中心（天津）有限公司 | Method for quickly testing driving range of electric automobile |
| CN112444750B (en) * | 2020-09-23 | 2023-05-02 | 中汽研汽车检验中心（天津）有限公司 | Rapid test method for driving range of electric automobile |
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