CN107976593A - Energy expenditure test system in a kind of electric automobile operational process - Google Patents

Energy expenditure test system in a kind of electric automobile operational process Download PDF

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Publication number
CN107976593A
CN107976593A CN201711042688.XA CN201711042688A CN107976593A CN 107976593 A CN107976593 A CN 107976593A CN 201711042688 A CN201711042688 A CN 201711042688A CN 107976593 A CN107976593 A CN 107976593A
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electric
electric automobile
signal
data acquisition
acquisition module
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CN201711042688.XA
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CN107976593B (en
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叶鸣
卢仲康
李礼夫
王航
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

Abstract

The invention discloses energy expenditure test system in a kind of electric automobile operational process, including:Electric flux consumption detection subsystem, chassis dynamometer system, the electric flux consumption detection subsystem is used for the electric current and voltage signal for detecting and preserving power battery, voltage, electric current, the capacitance consumption of power battery are calculated according to the electric current and voltage signal at the same time and electric flux consumes, draws influence of the electric automobile energy recycling to the consumption of electric car electric energy amount;Chassis dynamometer system is mainly used for testing automobile driving wheel output power, driving moment and speed, and load suffered during simulating vehicle actual travel.The present invention realizes the real-time record of energy expenditure and analysis in electric automobile operational process, solves the electric flux that electric automobile output is only tested in current electric car electric energy amount consumption test, have ignored the problem of energy regenerating influences energy expenditure.

Description

Energy expenditure test system in a kind of electric automobile operational process
Technical field
The present invention relates to energy expenditure test system in electric automobile operational process, is transported more particularly to electric automobile The test system that braking energy influences energy expenditure during row.
Background technology
As one of preferred plan for solving the problems, such as petroleum resources scarcity and automobile environmental pollution, electric automobile is Paid close attention to by countries in the world, however, the consumption of electric car electric energy amount is big, the short hair for constraining pure electric automobile of continual mileage Exhibition.Therefore, reduce electric automobile electric flux consumption, improve continual mileage be promote pure electric automobile promote effective means it One.Energy expenditure pilot system can gather and record in real time electric automobile power battery output in electric automobile operational process Voltage and current, realizes energy consumption data record and analysis in real time, can also realize energy in analysis electric automobile operational process Recycle the influence to the consumption of electric car electric energy amount.The test system of electric car electric energy amount consumption at present, mostly only The electric flux that driving wheel exports in electric automobile operational process is tested, have ignored the problem of energy regenerating influences energy expenditure. Energy expenditure test system in a kind of electric automobile operational process is proposed for this.
The content of the invention
The present invention in view of the deficiencies of the prior art, energy expenditure test system in design vehicle operational process, it is intended to Solve current electric automobile energy consumption test system and lack in electric automobile operational process energy regenerating to energy expenditure The problem of influence.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
Energy expenditure test system in a kind of electric automobile operational process, the system include:Electric flux consumption detection subsystem System, chassis dynamometer system,
The electric flux consumption detection subsystem is used for the electric current and voltage signal for detecting and preserving power battery, while according to institute State electric current and voltage signal calculates the consumption of voltage, electric current, capacitance and electric flux consumption of power battery, draw electric automobile The influence that energy regenerating consumes electric car electric energy amount in operational process;
The chassis dynamometer system is mainly used for testing automobile driving wheel output power, driving moment and speed, and simulates car Suffered load during actual travel.
Further, the electric flux consumption detection subsystem includes high-pressure data acquisition module, low pressure data collection mould High and low pressure data acquisition module is connected by block, current clamp, line lock line, computer, the line lock line, makes height Pressing data acquisition module to receive, extraneous power supply power supply is synchronous, and the low pressure data acquisition module passes through vehicle power supply supply lines and electricity Electrical automobile low-tension supply connects;The low pressure data acquisition module is also connected by signal line synchro with high-pressure data acquisition module Connect, for ensureing that the current and voltage signals that computer receives are synchronous;The low pressure data acquisition module passes through current clamp and battery Group high-voltage line cathode is connected, and is connected after being handled for collection battery pack output current signal in real time and by A/D converter through USB Line is delivered to computer;The high-pressure data acquisition module is connected by crocodile clip with battery pack high pressure positive and negative anodes, for real-time After gathering battery pack output voltage signal and being handled by A/D converter computer is delivered to through USB connecting lines;The computer For according to energy regenerating in battery pack output current signal and battery pack output voltage signal analysis electric automobile operational process Influence to the consumption of electric car electric energy amount.
Further, the computer includes data acquisition module and data analysis module, the data acquisition module For receiving battery pack output current signal and battery pack output voltage signal after conversion process, the data analysis module For calculating the voltage, electric current, capacitance of power battery according to battery pack output current signal and battery pack output voltage signal Amount consumption and electric flux consumption, analyze the influence that energy regenerating consumes electric car electric energy amount in electric automobile operational process.
Further, the chassis dynamometer system includes road simulation system, signal acquisition and controlling system, safety guarantor Barrier system and guiding system, the rolling road simulation system are used to simulate the condition of road surface in actual travel;The signal acquisition It is used to gather electric automobile speed in the process of moving with control system and drives force signal;The safe-guard system and draw Guiding systems are used to ensure chassis dynamometer system normal operation.
Further, the road simulation system includes drum apparatus, device for power absorption and inertia simulation device, institute Drum apparatus is stated to be used to support wheel and setting speed is provided;The device for power absorption is used for for simulation electric automobile operation In suffered air drag, the rolling resistance of non-driving wheel and grade resistance relevant parameter is set;The inertia simulation device is used In the rotary inertia of simulated automotive gyrating mass and the inertia of automobile translation quality.
Further, the signal acquisition and controlling system includes speed signal harvester, driving force signal acquisition Device and control system, the speed signal harvester are used to gather the running tach signal of electric automobile, the driving Force signal harvester is used to gather the running driving force signal of electric automobile;The control system is used for drum apparatus, is used to The control of property simulator, device for power absorption.
Compared with prior art, the present invention can gather and record in real time the voltage and electricity of electric automobile power battery output Stream, realizes the real-time record of energy expenditure and analysis in electric automobile operational process, can also realize analysis electric automobile operation During the influence that is consumed to electric car electric energy amount of energy regenerating.Solves current electric car electric energy amount consumption testing experiment System, only tests the electric flux that driving wheel exports in electric automobile operational process, have ignored energy regenerating and disappear to energy mostly The problem of consumption influences.
Brief description of the drawings
Fig. 1 is energy expenditure test system structure diagram in electric automobile operational process of the invention.
Fig. 2 is the electric car electric energy amount consumption detection subsystem structure schematic diagram of the present invention.
The computer schematic diagram of Fig. 3 present invention.
Fig. 4 is the chassis dynamometer system structure diagram of the present invention.
Fig. 5 is the road analogy structure diagram of the present invention.
Fig. 6 is the signal acquisition and controlling system structure diagram of the present invention.
Embodiment
Below in conjunction with the attached drawing in present example, the technical solution in present example is carried out clearly and completely Description, it is clear that described example only a part of example of the present invention, rather than whole examples.Based on the reality in the present invention Example, the every other example that those of ordinary skill in the art are obtained without making creative work, belongs to this Invent the scope of protection.
As shown in Figure 1, energy expenditure test system in a kind of electric automobile operational process, the system include:Electric energy Amount consumption detection subsystem, chassis dynamometer system,
The electric flux consumption detection subsystem is used for the electric current and voltage signal for detecting and preserving power battery, while according to institute State electric current and voltage signal calculates the consumption of voltage, electric current, capacitance and electric flux consumption of power battery, draw electric automobile The influence that energy regenerating consumes electric car electric energy amount in operational process;
The chassis dynamometer system is mainly used for testing automobile driving wheel output power, driving moment and speed, and simulates car Suffered load during actual travel.
As shown in Fig. 2, the electric flux consumption detection subsystem includes high-pressure data acquisition module, low pressure data collection mould High and low pressure data acquisition module is connected by block, current clamp, line lock line, computer, the line lock line, makes height Pressing data acquisition module to receive, extraneous power supply power supply is synchronous, and the low pressure data acquisition module passes through vehicle power supply supply lines and electricity Electrical automobile low-tension supply connects;The low pressure data acquisition module is also connected by signal line synchro with high-pressure data acquisition module Connect, for ensureing that the current and voltage signals that computer receives are synchronous;The low pressure data acquisition module passes through current clamp and battery Group high-voltage line cathode is connected, and is connected after being handled for collection battery pack output current signal in real time and by A/D converter through USB Line is delivered to computer;The high-pressure data acquisition module is connected by crocodile clip with battery pack high pressure positive and negative anodes, for real-time After gathering battery pack output voltage signal and being handled by A/D converter computer is delivered to through USB connecting lines;The computer For according to energy regenerating in battery pack output current signal and battery pack output voltage signal analysis electric automobile operational process Influence to the consumption of electric car electric energy amount.
As shown in figure 3, the computer includes data acquisition module and data analysis module, the data acquisition module For receiving battery pack output current signal and battery pack output voltage signal after conversion process, the data analysis module For calculating the voltage, electric current, capacitance of power battery according to battery pack output current signal and battery pack output voltage signal Amount consumption and electric flux consumption, analyze the influence that energy regenerating consumes electric car electric energy amount in electric automobile operational process.
As shown in figure 4, the chassis dynamometer system includes road simulation system, signal acquisition and controlling system, safety Safeguards system and guiding system, the rolling road simulation system are used to simulate the condition of road surface in actual travel;The signal is adopted Collection is used to gather electric automobile speed in the process of moving and drives force signal with control system;The safe-guard system and Guiding system is used to ensure chassis dynamometer system normal operation.
As shown in figure 5, the road simulation system includes drum apparatus, device for power absorption and inertia simulation device, The drum apparatus is used to support wheel and provides setting speed, and during test, the driving wheel of electric automobile drives to road analogy It is fixed on correct position is kept on the drum apparatus of system;The device for power absorption is used for for simulation electric automobile Suffered air drag, the rolling resistance of non-driving wheel and grade resistance set relevant parameter in operation;The inertia simulation dress Put the inertia of the rotary inertia and automobile translation quality for simulated automotive gyrating mass.
As shown in fig. 6, the signal acquisition and controlling system includes speed signal harvester, driving force signal acquisition Device and control system, the speed signal harvester are used to gather the running tach signal of electric automobile, the driving Force signal harvester is used to gather the running driving force signal of electric automobile;The control system is used for drum apparatus, is used to The control of property simulator, device for power absorption.
The electric automobile includes drive motor, power battery, vehicle control device and automotive power assembly etc., institute State power battery and provide power for electric automobile during traveling, when electric automobile is run under Smaller load, it is mainly held with medium current Continue and power for drive motor, electric automobile during traveling is driven by drive motor.When electric automobile starts or accelerates, it leads To power so that high current is of short duration for drive motor.But when electric automobile is in braking, drive motor plays generator Effect, is power battery charging, recycles the braking energy of electric automobile.
The mentality of designing and advantage of the present embodiment:
Analyze first, the energy expenditure test system imperfection of orthodox car, have ignored energy regenerating to energy expenditure Influence, in order to solve this problem, electric flux consumption detection subsystem is added on original system, can gather and record in real time The voltage and current of electric automobile power battery output, realizes that energy regenerating is to electric automobile in analysis electric automobile operational process The influence of electric flux consumption.Electric flux consumption detection subsystem has used Technology Precision, includes a variety of data modules Measuring device.System solves the technical problem of the Electromagnetic Compatibility and system reliability under strong interference environment, using great Rong Data processing and compression storing technology are measured, realizes the minisize vehicle-mounted formula of detecting instrument.Verification experimental verification, Selection experiment electric automobile Run under specific operation, voltage, the electric current of the collection in real time of detection subsystem and record power battery output consumed by electric flux, Analyze influence of the electric automobile energy recycling to energy expenditure.
The test process of the present embodiment includes:
1. check whether electric car electric energy amount consumption detection subsystem, chassis dynamometer system and experiment tyre pressure meet to test It is required that if above-mentioned requirements all meet, electric automobile driving wheel is driven on the drum apparatus of road simulation system, is keeping correct Position on it is fixed.
2. it is air drag, the rolling resistance of non-driving wheel and grade resistance suffered by simulation electric automobile operation etc., In device for power absorption, corresponding parameter is set.Open the speed signal harvester and driving force of information gathering and control system Signal pickup assembly, the respectively speed during collection electric automobile during traveling and driving force signal, safe-guard system and guiding System ensures chassis dynamometer system normal operation.
3. pull down vehicle low-tension supply anode, wait and allow within 5 minutes its low-voltage electrical apparatus discharge off, then dismantle high voltage power supply Service switch.
4. high and low pressure data acquisition module is connected by line lock line 7, low pressure data acquisition module passes through car Power supply supply lines is connected with electric automobile low-tension supply.Low pressure data acquisition module by current clamp and battery pack high-voltage line just Extremely it is connected.High-pressure data acquisition module is connected by crocodile clip with battery pack high pressure positive and negative anodes.Low pressure data acquisition module passes through Signal line synchro is connected with high-pressure data acquisition module.
5. high and low pressure data acquisition module is connected by USB connecting lines with computer respectively.
6. start the computer in electric flux consumption detection subsystem, log-on data acquisition module, data analysis module.
7. laboratory technician controls electric automobile according to set driving cycle, phase is shown on the interface set by computer Answer the change of parameters of electric power.
8. measurement condition is completed, closing electric flux consumption detection subsystem and chassis dynamometer system, repairing experiment equipment, Off-test.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention All any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention Within the scope of.

Claims (6)

1. energy expenditure test system in a kind of electric automobile operational process, it is characterised in that the system includes:Electric flux Consumption detection subsystem, chassis dynamometer system,
The electric flux consumption detection subsystem is used for the electric current and voltage signal for detecting and preserving power battery, while according to institute State electric current and voltage signal calculates the consumption of voltage, electric current, capacitance and electric flux consumption of power battery, draw electric automobile The influence that energy regenerating consumes electric car electric energy amount in operational process;
The chassis dynamometer system is mainly used for testing automobile driving wheel output power, driving moment and speed, and simulates car Suffered load during actual travel.
A kind of 2. energy expenditure test system in electric automobile operational process according to claim 1, it is characterised in that: The electric flux consumption detection subsystem includes high-pressure data acquisition module, low pressure data acquisition module, current clamp, line lock High and low pressure data acquisition module is connected by line, computer, the line lock line, receives high-low pressure data acquisition module Extraneous power supply power supply is synchronous, and the low pressure data acquisition module is connected by vehicle power supply supply lines and electric automobile low-tension supply Connect;The low pressure data acquisition module is also connected by signal line synchro with high-pressure data acquisition module, for ensureing to calculate The current and voltage signals that machine receives are synchronous;The low pressure data acquisition module passes through current clamp and battery pack high-voltage line cathode phase Even, after being handled for collection battery pack output current signal in real time and by A/D converter calculating is delivered to through USB connecting lines Machine;The high-pressure data acquisition module is connected by crocodile clip with battery pack high pressure positive and negative anodes, defeated for gathering battery pack in real time After going out voltage signal and being handled by A/D converter computer is delivered to through USB connecting lines;The computer is used for according to battery Energy regenerating is to electric automobile electricity in group output current signal and battery pack output voltage signal analysis electric automobile operational process The influence of energy expenditure.
A kind of 3. energy expenditure test system in electric automobile operational process according to claim 1, it is characterised in that: The computer includes data acquisition module and data analysis module, and the data acquisition module is used for after receiving conversion process Battery pack output current signal and battery pack output voltage signal, the data analysis module be used for exported according to battery pack Current signal and battery pack output voltage signal calculate the consumption of voltage, electric current, capacitance and electric flux consumption of power battery, The influence that energy regenerating consumes electric car electric energy amount in analysis electric automobile operational process.
A kind of 4. energy expenditure test system in electric automobile operational process according to claim 1, it is characterised in that: The chassis dynamometer system includes road simulation system, signal acquisition and controlling system, safe-guard system and guiding system, The rolling road simulation system is used to simulate the condition of road surface in actual travel;The signal acquisition and controlling system is used to gather The speed of electric automobile in the process of moving and driving force signal;The safe-guard system and guiding system are used to ensure chassis Dynamometer system normal operation.
A kind of 5. energy expenditure test system in electric automobile operational process according to claim 4, it is characterised in that: The road simulation system includes drum apparatus, device for power absorption and inertia simulation device, and the drum apparatus is used for branch Support wheel simultaneously provides setting speed;The device for power absorption is used for for air resistance suffered in simulation electric automobile operation Power, the rolling resistance of non-driving wheel and grade resistance set relevant parameter;The inertia simulation device is rotated for simulated automotive The rotary inertia of quality and the inertia of automobile translation quality.
A kind of 6. energy expenditure test system in electric automobile operational process according to claim 4, it is characterised in that The signal acquisition and controlling system includes speed signal harvester, driving force signal pickup assembly and control system, institute State speed signal harvester to be used to gather the running tach signal of electric automobile, the driving force signal pickup assembly is used for Gather the running driving force signal of electric automobile;The control system is used for drum apparatus, inertia simulation device, power absorption The control of device.
CN201711042688.XA 2017-10-30 2017-10-30 Energy consumption test system in electric automobile operation process Active CN107976593B (en)

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CN109061339A (en) * 2018-07-06 2018-12-21 山东交通学院 A kind of the energy consumption measurement system and measurement method of electric car
CN110702429A (en) * 2019-06-10 2020-01-17 辽宁龙马安泰网络技术有限责任公司 Method for detecting power of instantaneous driving wheel during automobile running
CN110850190A (en) * 2018-07-27 2020-02-28 深圳市康士柏实业有限公司 Power performance testing method for electric automobile

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CN110702429B (en) * 2019-06-10 2021-04-02 辽宁龙马安泰网络技术有限责任公司 Method for detecting power of instantaneous driving wheel during automobile running

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