A kind of the energy consumption analysis of experiments system and its analysis method of electric carTechnical field
The present invention relates to electric car energy consumption analysis technical field, the energy consumption analysis of experiments system of especially a kind of electric carSystem and its analysis method.
Background technique
Under the overall background of global energy-saving and emission-reduction, pure electric automobile is increasingly taken seriously, and various countries launch respectively relevant policies,Automobile Enterprises also in succession expansion research and development, pith of the automobile energy consumption as automobile test, electric car energy consumption test specification andIts standard is also formulated in succession, and testing is substantially after data acquire, to post-process to data, and cannot achieve to dataProcessing in real time and display, can not facilitate testing crew to find the problem in time processing problem.
For example, application No. is 201610221399.5 patent documents to disclose a kind of energy consumption analysis system of electric carAnd method, application No. is 201710944893.9 patent document disclose a kind of pure electric automobile road test energy consumption measurement system andIts analysis method, all calculates its efficiency by the DATA REASONING to test car component, but its can not by energy flow direction,The real-time displays such as accounting, efficiency come out, and the personnel for not participating in test can not be made to be monitored in real time to test car, therefore,The relevant technologies are to be improved.
Summary of the invention
The primary purpose of the present invention is that provide it is a kind of being capable of survey calculation electric car each component during the testThe test datas such as energy, energy flow direction, efficiency, temperature, and the energy consumption analysis of experiments of the electric car to display itSystem.
To achieve the above object, the invention adopts the following technical scheme: a kind of energy consumption analysis of experiments system of electric carSystem, comprising:
It is each to acquire corresponding automobile when running under setting experimental condition for data acquisition module, the electric car for testThe data or signal of component；
Data processing module is counted the data acquired for being handled in real time the data acquired in real timeIt calculates and exports；
Energy accounting and FLOW VISUALIZATION module, energy flow direction, size and energy for the electric car to testAccounting carries out real-time display.
The data acquisition module includes:
Power grid end acquisition module, for acquiring the electric current, voltage data and sampling step length of power grid output end；
Charger acquisition module, for acquiring the electric current, voltage data and sampling step length of charger output end；
Battery temperature acquisition module, for acquiring the temperature of batteries of electric automobile；
Attachment acquisition module, for acquiring the electric current, voltage data and sampling step length of electric car attachment input terminal；
Electric machine controller acquisition module, for acquiring the electric current, voltage data and sampling step length of electric machine controller output end；
Motor acquisition module, for acquiring revolving speed, torque data and the sampling step length of motor output end；
Semiaxis acquisition module, for acquiring revolving speed, torque data and the sampling step length of semiaxis output end.
The data processing module includes:
Data-in port is connected with data computation module, for the data of data collecting module collected to be input to numberAccording to carrying out calculation processing in computing module；
Data computation module, data of input port for receiving data, and calculated；
Data memory module is connected with data computation module, for storing data the calculated result of computing module；
Data-out port is connected with data computation module, and the result for calculating data computation module passes in real timeIt is defeated by energy accounting and FLOW VISUALIZATION module.
The energy accounting and FLOW VISUALIZATION module include:
Data reception module, the data that processing module exports for receiving data；
Data disaply moudle, for the received data of data reception module to be shown, so as to testing crew analysis andCheck test result.
The setting experiment condition refers to the speed of setting, ambient temperature conditions；Each component of automobile refer to charger,Battery, electric machine controller, motor, speed changer, semiaxis, attachment；The data or signal refer to voltage, electric current, revolving speed, torque,Temperature signal.
Another object of the present invention is to provide a kind of analysis method of the energy consumption analysis of experiments system of electric car,This method includes the steps that following order:
(1) phase of each component by data acquisition module to the electric car of test when being run under setting experimental conditionData or signal are answered to be acquired；
(2) by data collecting module collected to data be transferred to data processing module, data processing module to data intoRow is handled and is exported after storing；
(3) energy accounting and FLOW VISUALIZATION module receive the data of data processing module output, and show.
The data processing module carries out processing to data and specifically refers to:
Calculate the charge efficiency of charger input/output terminal energy and charger；
Calculate the discharging efficiency of batteries of electric automobile input/output terminal energy and batteries of electric automobile；
Calculate the operational efficiency of motor input/output terminal energy and motor；
Calculate power train input/output terminal energy and mechanical efficiency；
Calculate the input/output terminal energy of attachment and the efficiency of attachment；
The number that each component energy accounts for gross energy calculated；When testing electric car driving, the gross energy is power grid endExport energy；When testing electric vehicle brake, the gross energy is the reversed input energy of wheel；Electric car is tested calculatingWhen the energy accounting of each component, the gross energy is that power grid end exports energy；The energy of each component subtracts defeated for input energyEnergy out.
The charge efficiency of the charger is the ratio that charger exports energy and input energy；The batteries of electric automobileDischarging efficiency be batteries of electric automobile export energy and input energy ratio；The operational efficiency of the motor is motor outputThe ratio of energy and input energy；The mechanical efficiency of the power train is the ratio that power train exports energy and input energy；InstituteThe efficiency for stating attachment is the ratio of attachment output energy and input energy.
As shown from the above technical solution, the present invention has the advantages that first, the present invention can will test each component of electric carEnergy flow direction, accounting, the real-time displays such as efficiency come out；Second, the present invention can make the personnel for participating in test in real time to examinationElectrical verification electrical automobile is monitored, and finds test problem in time, is modified to test；Third, the present invention can be by test datasAnd calculated result saves in real time, convenient for the post-processing work of testing crew, mitigates the burden of testing crew.
Detailed description of the invention
Fig. 1 is systematic square frame schematic diagram of the invention；
Fig. 2 is the operation principle schematic diagram of data acquisition module in Fig. 1；
Fig. 3 is the operation principle schematic diagram of data processing module in Fig. 1；
Fig. 4 is the operation principle schematic diagram of energy accounting and FLOW VISUALIZATION module in Fig. 1；
Fig. 5 is visual work schematic illustration during test electric car driving shown in the embodiment of the present invention one；
Fig. 6 is visual work schematic illustration during test electric vehicle brake shown in the embodiment of the present invention two.
Specific embodiment
As shown in Figure 1, a kind of energy consumption analysis of experiments system of electric car, comprising:
It is each to acquire corresponding automobile when running under setting experimental condition for data acquisition module, the electric car for testThe data or signal of component；
Data processing module is counted the data acquired for being handled in real time the data acquired in real timeIt calculates and exports；
Energy accounting and FLOW VISUALIZATION module, energy flow direction, size and energy for the electric car to testAccounting carries out real-time display.
As shown in Fig. 2, the data acquisition module includes:
Power grid end acquisition module, for acquiring the electric current, voltage data and sampling step length of power grid output end；
Charger acquisition module, for acquiring the electric current, voltage data and sampling step length of charger output end；
Battery temperature acquisition module, for acquiring the temperature of batteries of electric automobile；
Attachment acquisition module, for acquiring the electric current, voltage data and sampling step length of electric car attachment input terminal；
Electric machine controller acquisition module, for acquiring the electric current, voltage data and sampling step length of electric machine controller output end；
Motor acquisition module, for acquiring revolving speed, torque data and the sampling step length of motor output end；
Semiaxis acquisition module, for acquiring revolving speed, torque data and the sampling step length of semiaxis output end.
As shown in figure 3, the data processing module includes:
Data-in port is connected with data computation module, for the data of data collecting module collected to be input to numberAccording to carrying out calculation processing in computing module；
Data computation module, data of input port for receiving data, and calculated；
Data memory module is connected with data computation module, for storing data the calculated result of computing module；
Data-out port is connected with data computation module, and the result for calculating data computation module passes in real timeIt is defeated by energy accounting and FLOW VISUALIZATION module.
As shown in figure 4, the energy accounting and FLOW VISUALIZATION module include:
Data reception module, the data that processing module exports for receiving data；
Data disaply moudle, for the received data of data reception module to be shown, so as to testing crew analysis andCheck test result.
The setting experiment condition refers to the speed of setting, ambient temperature conditions；Each component of automobile refer to charger,Battery, electric machine controller, motor, speed changer, semiaxis, attachment；The data or signal refer to voltage, electric current, revolving speed, torque,Temperature signal.
This method includes the steps that following order:
(1) phase of each component by data acquisition module to the electric car of test when being run under setting experimental conditionData or signal are answered to be acquired；
(2) by data collecting module collected to data be transferred to data processing module, data processing module to data intoRow is handled and is exported after storing；
(3) energy accounting and FLOW VISUALIZATION module receive the data of data processing module output, and show.
The data processing module carries out processing to data and specifically refers to:
Calculate the charge efficiency of charger input/output terminal energy and charger；
Calculate the discharging efficiency of batteries of electric automobile input/output terminal energy and batteries of electric automobile；
Calculate the operational efficiency of motor input/output terminal energy and motor；
Calculate power train input/output terminal energy and mechanical efficiency；
Calculate the input/output terminal energy of attachment and the efficiency of attachment；
The number that each component energy accounts for gross energy calculated；When testing electric car driving, the gross energy is power grid endExport energy；When testing electric vehicle brake, the gross energy is the reversed input energy of wheel；Electric car is tested calculatingWhen the energy accounting of each component, the gross energy is that power grid end exports energy；The energy of each component subtracts defeated for input energyEnergy out.
The charge efficiency of the charger is the ratio that charger exports energy and input energy；The batteries of electric automobileDischarging efficiency be batteries of electric automobile export energy and input energy ratio；The operational efficiency of the motor is motor outputThe ratio of energy and input energy；The mechanical efficiency of the power train is the ratio that power train exports energy and input energy；InstituteThe efficiency for stating attachment is the ratio of attachment output energy and input energy.
Embodiment one
As shown in figure 5, energy accounting and FLOW VISUALIZATION module receive at data during testing the driving of electric carIt can be by data information real-time display in visualization interface, wherein indicating energy with arrow direction after the data of reason module transferFlow direction, while the energy values of real-time display corresponding component, energy accounting, efficiency value and temperature facilitate testing crewThe operation conditions of real-time monitoring test car.
Embodiment two
As shown in fig. 6, energy accounting and FLOW VISUALIZATION module receive at data in the braking process of test electric carIt can be by data information real-time display in visualization interface, wherein indicating energy with arrow direction after the data of reason module transferFlow direction, while the energy values of real-time display corresponding component, energy accounting, efficiency is set and temperature, facilitates testing crewThe operation conditions of real-time monitoring test car.
In conclusion the present invention can show in real time the energy flow direction for testing each component of electric car, accounting, efficiency etc.It shows and；Can make participate in test personnel in real time to test electric car be monitored, find test problem in time, to test intoRow amendment；Test data and calculated result can be saved in real time, convenient for the post-processing work of testing crew, mitigate testing crewBurden.