CN106153354A - A kind of electric automobile energy feedback detection method and system - Google Patents
A kind of electric automobile energy feedback detection method and system Download PDFInfo
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- CN106153354A CN106153354A CN201610668419.3A CN201610668419A CN106153354A CN 106153354 A CN106153354 A CN 106153354A CN 201610668419 A CN201610668419 A CN 201610668419A CN 106153354 A CN106153354 A CN 106153354A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of electric automobile energy feedback detection method and system.Described method includes: according to default operating mode examination criteria and the car load operational factor of automobile to be measured, simulates the automobile to be measured dynamic operation torque for controlling its velocity variations in the detection cycle；Control automobile to be measured according to simulation dynamic operation torque out, on electric dynamometer, carry out being periodically detected operation；Obtain the automobile to be measured operation power within each detection cycle；According to the operation power obtained, calculate the energy feedback parameter of automobile to be measured.The energy feedback detection method that the present invention provides, default operating mode examination criteria is followed during detection, its testing result has good reference value, automobile to be measured detects on circuit dynamometer machine, without special detection place, testing cost is low, and detection process automatically controls automobile to be measured and runs according to the dynamic operation torque simulated out, avoiding the error that pilot steering brings, testing result is more accurately and reliably.
Description
Technical field
The present invention relates to electric vehicle engineering field, particularly to a kind of electric automobile energy feedback detection method be
System.
Background technology
Electric automobile is the green product of a kind of energy-saving and environmental protection, and the existence of current power battery is lower than energy, cost is high, charging
The reasons such as time length so that electric automobile course continuation mileage is by significant limitation.And when electric automobile enters on-position
Have greatly kinetic energy to become heat energy and be wasted, it is possible to the feed-back type brakes reclaiming braking energy is existing
The car load core technology of electric automobile efficiency and braking safety, the focus of Shi Ge great automobile vendor car load self-technique competition.
But due to the standard that each producer in the technology implementation strategy of energy feedback is the most unified, electric automobile is at energy
Performance in terms of feedback is had nothing in common with each other.
Existing electric automobile energy feedback detection technique, mainly rely on electric automobile is run on the spot detection or
Electric automobile energy feedback system is directly detected by person, and the former is difficult to reach standardization due to manual operation, and it detects knot
Really error is relatively big, and needs special detection place, the latter owing to not simulating automobile ruuning situation under actual condition,
Its testing result and practical situation there may be bigger error.
Summary of the invention
In order to solve the non-type problem of testing result in existing electric automobile energy feedback detection technique, the present invention is real
Execute example and provide a kind of electric automobile energy feedback detection method and system.Described technical scheme is as follows:
On the one hand, embodiments providing a kind of electric automobile energy feedback detection method, described method includes:
According to default operating mode examination criteria and the car load operational factor of automobile to be measured, simulate described automobile to be measured in the detection cycle
In for controlling the dynamic operation torque of its velocity variations, described dynamic operation torque includes: accelerating torque and deceleration torque；
Control described automobile to be measured according to simulation dynamic operation torque out, on electric dynamometer, be periodically detected
Run；
Obtaining the described automobile to be measured operation power within each detection cycle, described operation power includes: input power and defeated
Go out power；
According to the operation power obtained, calculate the energy feedback parameter of described automobile to be measured.
In the electric automobile energy feedback detection method that the embodiment of the present invention is above-mentioned, described control automobile to be measured is according to mould
The operation torque drawn up, on electric dynamometer, carries out being periodically detected operation, including:
The control voltage preset to the input of described automobile to be measured, and it is corresponding to obtain described automobile to be measured from described electric dynamometer
Dynamic operation torque, described control voltage includes: control voltage and being used for for controlling the acceleration of car ACCEL to be measured
Control the control for brake voltage of automobile brake pedal to be measured；
Turn according to the default control voltage inputted to described automobile to be measured and the dynamic operation obtained from described electric dynamometer
Square, calculates the corresponding relation controlled between voltage and dynamic operation torque；
The dynamic operation torque in the detection cycle of the automobile to be measured according to simulation, calculates automobile to be measured in the detection cycle
Control voltage；
Input the control voltage calculated to automobile to be measured, control described system automobile to be measured and turn according to the dynamic operation simulated out
Square, on electric dynamometer, carries out being periodically detected operation.
In the electric automobile energy feedback detection method that the embodiment of the present invention is above-mentioned, described control voltage and dynamic operation
Corresponding relation between torque includes:
Accelerate to control the corresponding relation between voltage and accelerating torque, and the corresponding pass between control for brake voltage and deceleration torque
System.
In the electric automobile energy feedback detection method that the embodiment of the present invention is above-mentioned, also include:
Store the corresponding relation controlled between voltage and dynamic operation torque, make for detecting with the energy feedback of type electric automobile
With.
In the electric automobile energy feedback detection method that the embodiment of the present invention is above-mentioned, described acquisition automobile to be measured is each
Input power in cycle of operation and output, including:
By being arranged on the power analyzer in automobile to be measured, obtain the described automobile to be measured operation merit in each cycle of operation
Rate.
On the other hand, embodiments provide a kind of electric automobile energy feedback detecting system, including:
Computer, for according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, simulating described vapour to be measured
The car dynamic operation torque for controlling its velocity variations in the detection cycle, described dynamic operation torque includes: accelerate to turn
Square and deceleration torque；
Electric dynamometer, for supplying described automobile to be measured in the detection cycle, carries out detection and runs；
Described computer, is connected with described automobile to be measured and described electric dynamometer respectively, is additionally operable to control described automobile to be measured
According to simulation dynamic operation torque out, on described electric dynamometer, carry out cycling service；
Power analyzer, is connected with described automobile to be measured, for obtaining the operation within each detection cycle of the described automobile to be measured
Power, described operation power includes: input power and output；
Described computer, is also connected with described power analyzer, for according to the operation power obtained, calculating described automobile to be measured
Energy feedback parameter.
In the electric automobile energy feedback detecting system that the embodiment of the present invention is above-mentioned, described computer, it is additionally operable to institute
Stating the control voltage that automobile to be measured input is preset, described control voltage includes: for controlling the acceleration of car ACCEL to be measured
Control voltage and for controlling the control for brake voltage of automobile brake pedal to be measured；
Described electric dynamometer, is additionally operable to obtain described automobile to be measured corresponding dynamic under conditions of input default control voltage
Run torque；
Described computer, is additionally operable to according to the default control voltage inputted to described automobile to be measured with from described electric dynamometer
The dynamic operation torque obtained, calculates the corresponding relation controlled between voltage and dynamic operation torque；
Described computer, is additionally operable to the dynamic operation torque in the detection cycle of the automobile to be measured according to simulation, calculates to be measured
Automobile control voltage in the detection cycle；
Described computer, is additionally operable to input, to automobile to be measured, the control voltage calculated, controls described automobile to be measured according to mould
The dynamic operation torque drawn up, on described electric dynamometer, carries out being periodically detected operation.
In the electric automobile energy feedback detecting system that the embodiment of the present invention is above-mentioned, described control voltage and dynamic operation
Corresponding relation between torque includes:
Accelerate to control the corresponding relation between voltage and accelerating torque, and the corresponding pass between control for brake voltage and deceleration torque
System.
In the electric automobile energy feedback detecting system that the embodiment of the present invention is above-mentioned, described computer, it is additionally operable to store
Controlling the corresponding relation between voltage and dynamic operation torque, the energy feedback for same type electric automobile detects.
The technical scheme that the embodiment of the present invention provides has the benefit that
By first according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, simulate automobile to be measured in detection week
The interim dynamic operation torque for controlling its velocity variations；Then automobile to be measured is controlled according to the dynamic operation simulated out
Torque, on electric dynamometer, carries out being periodically detected operation；Secondly, the automobile to be measured fortune within each detection cycle is obtained
Row power；Finally according to the operation power obtained, calculate the energy feedback parameter of automobile to be measured.So this electric automobile energy returns
Feedback detection method, follows default operating mode examination criteria during detection, and its testing result has good reference value, treats
Survey automobile to detect on circuit dynamometer machine, it is not necessary to special detection place, testing cost is low, and detection process automatically controls
Automobile to be measured runs according to simulation dynamic operation torque out, it is to avoid the error that pilot steering brings so that testing result
More accurately and reliably.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of electric automobile energy feedback detection method flow chart that the embodiment of the present invention one provides；
Fig. 2 is the time dependent signal of automobile speed in a kind of NEDC operating mode examination criteria that the embodiment of the present invention one provides
Figure；
Fig. 3 is that in a kind of NEDC operating mode examination criteria that the embodiment of the present invention one provides, automobile dynamic operation torque changes over
Schematic diagram；
Fig. 4 is a kind of accelerating torque that the embodiment of the present invention one provides and the corresponding relation schematic diagram accelerated between control voltage；
Fig. 5 is the corresponding relation schematic diagram between a kind of deceleration torque and the control for brake voltage that the embodiment of the present invention one provides；
Fig. 6 is that the acceleration inputting automobile in a kind of NEDC operating mode examination criteria that the embodiment of the present invention one provides controls voltage at any time
Between change schematic diagram；
Fig. 7 is to input the control for brake voltage of automobile at any time in a kind of NEDC operating mode examination criteria that the embodiment of the present invention one provides
Between change schematic diagram；
The time dependent signal of automobilism power in a kind of NEDC operating mode examination criteria that Fig. 8 embodiment of the present invention one provides
Figure；
Fig. 9 is the structural representation of a kind of electric automobile energy feedback detecting system that the embodiment of the present invention two provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Embodiments providing a kind of electric automobile energy feedback detection method, see Fig. 1, the method may include that
Step S11, according to default operating mode examination criteria and the car load operational factor of automobile to be measured, simulates automobile to be measured in detection
The dynamic operation torque for controlling its velocity variations in cycle, this dynamic operation torque may include that accelerating torque and subtracts
Speed torque.
In the present embodiment, the operating mode examination criteria preset can be new European standard driving pattern (New European
Driving Cycle, is called for short " NEDC ") examination criteria, see Fig. 2, this NEDC examination criteria defines following of one group of standard
The ring detection cycle, and detail requirement vehicle to be measured is in the cycle detection cycle, the speed of vehicle to be measured feelings over time
Condition (such as: accelerated motion, uniform motion and retarded motion).It should be noted that this operating mode examination criteria preset is not
It is only limitted to NEDC examination criteria, it is also possible to other general operating mode examination criterias various be applicable to electric automobile industry, here
Do not limit.In step s 11, use the operating mode examination criteria preset, so that this electric automobile energy feedback detection side
Method standardization, its testing result has more reference value.
In the present embodiment, the car load operational factor of automobile to be measured may include that complete vehicle weight, and the wind back amasss, and runs speed
Degree, ground friction coefficient, radius of wheel etc., in actual applications, electric motor car can be used to emulate dynamics calculation method, carry out mould
Intend the automobile to be measured dynamic operation torque in the detection cycle.Such as: what Fig. 3 showed is under NEDC examination criteria, simulation is out
Dynamic operation torque.It should be noted that when dynamic operation torque is zero, automobile to be measured may be at uniform speed motion state
Or resting state.
Step S12, controls automobile to be measured according to simulation dynamic operation torque out, on electric dynamometer, carries out week
The detection of phase property runs.
It should be noted that electric dynamometer (i.e. chassis dynamometer) is a kind of for testing vehicle dynamic quality, multi-state
The indoor bench test equipment of the performances such as discharge index, fuel oil index.Road simulation dynamometer passes through cylinder simulated roadway, calculates
Go out road simulation equation, and be simulated with charger, it is achieved the simulation of operating mode each to automobile.In the present embodiment, will treat
Survey automobile is placed on electric dynamometer and carries out energy feedback detection, machine replace manually being standardized operation, effectively drop
The uncertainty of artificial testing result the most on the spot in low prior art, simultaneously so that this energy measuring can complete in indoor, joint
Save space, place, save testing cost, practical.
Specifically, above-mentioned steps S12 can be accomplished in that
Step S121, the control voltage preset to automobile to be measured input, and it is corresponding to obtain automobile to be measured from electric dynamometer
Dynamic operation torque, this control voltage may include that acceleration for controlling car ACCEL to be measured control voltage and for
Control the control for brake voltage of automobile brake pedal to be measured.Additionally, when controlling voltage and being zero, automobile to be measured is in uniform motion
State or resting state.
In the present embodiment, when the running status of automobile to be measured is controlled, have employed regulation and input automobile to be measured
Control the method that voltage regulates its dynamic operation torque, in order to effectively utilize said method, need first to calculate automobile to be measured
Dynamic operation torque and the relation controlled between voltage, to this end, the control voltage first preset to automobile to be measured input, and synchronize from
Obtain on circuit dynamometer machine and control the dynamic operation torque result that voltage is corresponding.
Step S122, according to the default control voltage inputted to automobile to be measured and the dynamic fortune obtained from electric dynamometer
Row torque, calculates the corresponding relation controlled between voltage and dynamic operation torque.
Concrete, in step S122, the corresponding relation controlled between voltage and dynamic operation torque includes: accelerate to control
Corresponding relation between corresponding relation between voltage and accelerating torque, and control for brake voltage and deceleration torque.
In the present embodiment, Fig. 4 illustrates a kind of acceleration and controls the corresponding relation between voltage and accelerating torque, by counting
Calculation can be known, during automobile accelerated motion to be measured, the proportionality constant K1 accelerating to control between voltage and accelerating torque is 300；Fig. 5
Illustrate the corresponding relation between a kind of control for brake voltage and deceleration torque, can know by calculating, car deceleration to be measured
During motion, the proportionality constant K2 between control for brake voltage and deceleration torque is 400.
Step S123, according to the automobile to be measured simulated dynamic operation torque in the detection cycle, calculates automobile to be measured
Control voltage in the detection cycle.
In the present embodiment, Fig. 6 is under NEDC examination criteria, and the acceleration being applied on accelerator pedal controls voltage at any time
Between change schematic diagram；Fig. 7 is under NEDC examination criteria, and the control for brake voltage being applied on brake pedal changes over
Schematic diagram.
Step S124, inputs the control voltage calculated to automobile to be measured, controls automobile to be measured according to simulating out
Dynamic operation torque, on electric dynamometer, carries out being periodically detected operation.
In actual applications, in order to enable automobile to be measured to carry out cycling service according to default operating mode examination criteria,
Needing when the control voltage that automobile to be measured input is calculated, its dynamic operation torque produced meets simulation out dynamic
Running torque, if there being a small amount of error between them, can be controlled between voltage and dynamic operation torque by regulation
Corresponding relation (such as: proportionality constant K1 and K2), reduces range of error so that it is be in tolerable range of error (such as:
Positive and negative 3%).
Step S125, stores the corresponding relation controlled between voltage and dynamic operation torque, for type electric automobile
Energy feedback detection uses.
In actual applications, when being not required to carry out energy feedback detection every time, all recalculate a secondary control voltage with
Corresponding relation between dynamic operation torque, but the corresponding relation controlled between voltage and dynamic operation torque can be stored,
Reuse during for detecting with the energy feedback of type electric automobile.
Step S13, obtains the automobile to be measured operation power within each detection cycle, and this operation power includes: input work
Rate and output.
In the present embodiment, running power and may include that input power and output, wherein, output refers to treat
Survey automobile accelerating or when traveling at the uniform speed, the power of its power supply output；Input power refer to automobile to be measured when retarding braking, defeated
Enter the power in its power supply.
In actual applications, the operation power in several detection cycle can be obtained more, take the average of its result, it is also possible to
First calculate the energy feedback parameter of multiple automobile to be measured, and take its meansigma methods, to strengthen the accuracy of result of calculation.
Specifically, above-mentioned steps S13 can be accomplished in that
By being arranged on the power analyzer in automobile to be measured, obtain the automobile to be measured operation power in each cycle of operation.
In the present embodiment, can be in the connection circuit between the power supply of automobile to be measured and electromotor, power in connection
Analyser, obtains the automobile to be measured operation power in each cycle of operation.
Step S14, according to the operation power obtained, calculates the energy feedback parameter of automobile to be measured, this energy feedback parameter
May include that energy feedback value and energy feedback ratio.
In the present embodiment, what Fig. 8 showed is the automobile to be measured operation under NEDC examination criteria, in the detection cycle
Power situation, wherein, in Fig. 8 power be on the occasion of time, refer to output；When power is negative value in Fig. 8, refer to input power.
Energy feedback value can be by calculating the absolute value of all negative power sums in Fig. 8.Energy feedback ratio can be by first counting
In nomogram 8 all on the occasion of power sum, then by calculating the absolute value of all negative power sums and institute in nomogram 8 in Fig. 8
There is the ratio on the occasion of power sum.
The embodiment of the present invention first according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, is simulated to be measured
The automobile dynamic operation torque for controlling its velocity variations in the detection cycle；Then automobile to be measured is controlled according to simulating
The dynamic operation torque come, on electric dynamometer, carries out being periodically detected operation；Secondly, automobile to be measured is obtained in each inspection
Operation power in the survey cycle；Finally according to the operation power obtained, calculate the energy feedback parameter of automobile to be measured.So this electricity
Electrical automobile energy feedback detection method, follows default operating mode examination criteria during detection, and its testing result has well
Reference value, automobile to be measured detects on circuit dynamometer machine, it is not necessary to special detection place, and testing cost is low, and inspection
Survey process automatically controls automobile to be measured and runs according to simulation dynamic operation torque out, it is to avoid the mistake that pilot steering brings
Difference so that testing result is more accurately and reliably.
Embodiment two
Embodiments provide a kind of electric automobile energy feedback detecting system, run the method described in embodiment one, ginseng
Seeing Fig. 9, this system may include that computer 1, electric dynamometer 2, power analyzer 3.
Computer 1, for according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, simulating vapour to be measured
Car in the detection cycle for controlling the dynamic operation torque of its velocity variations, dynamic operation torque includes: accelerating torque and
Deceleration torque.
In the present embodiment, the operating mode examination criteria preset can be NEDC examination criteria, boundary in this NEDC examination criteria
Determine the cycle detection cycle of one group of standard, and detail requirement vehicle to be measured is in the cycle detection cycle, the car of vehicle to be measured
Speed situation over time (such as: accelerated motion, uniform motion and retarded motion).It should be noted that what this was preset
Operating mode examination criteria is not limited in NEDC examination criteria, it is also possible to other general works various be applicable to electric automobile industry
Condition examination criteria, does not limits.Computer 1 uses the operating mode examination criteria preset, so that this electric automobile energy
The detection process standardization of feedback detecting system, its testing result has more reference value.
In the present embodiment, the car load operational factor of automobile to be measured may include that complete vehicle weight, and the wind back amasss, and runs speed
Degree, ground friction coefficient, radius of wheel etc., in actual applications, electric motor car can be used to emulate dynamics calculation method, carry out mould
Intend the automobile to be measured dynamic operation torque in the detection cycle.
Electric dynamometer 2, for supplying automobile to be measured in the detection cycle, carries out detection and runs.
In the present embodiment, electric dynamometer 2(is also referred to as chassis dynamometer) it is a kind of for testing vehicle dynamic quality, multiplexing
The indoor bench test equipment of the performances such as condition discharge index, fuel oil index.Electric dynamometer 2, by cylinder simulated roadway, calculates
Go out road simulation equation, and be simulated with charger, it is achieved the simulation of operating mode each to automobile.In the present embodiment, will treat
Survey automobile is placed on electric dynamometer 2 and carries out energy feedback detection, machine replace manually being standardized operation, effectively drop
The uncertainty of artificial testing result the most on the spot in low prior art, simultaneously so that this energy measuring can complete in indoor, joint
Save space, place, save testing cost, practical.
Computer 1, is connected with automobile to be measured and electric dynamometer 2 respectively, is additionally operable to control automobile to be measured according to simulating
The dynamic operation torque come, on electric dynamometer 2, carries out cycling service.
Power analyzer 3, is connected with automobile to be measured, for obtaining the automobile to be measured operation merit within each detection cycle
Rate, runs power and includes: input power and output.
In the present embodiment, running power and may include that input power and output, wherein, output refers to treat
Survey automobile accelerating or when traveling at the uniform speed, the power of its power supply output；Input power refer to automobile to be measured when retarding braking, defeated
Enter the power in its power supply.
In actual applications, the operation power in several detection cycle can be obtained more, take the average of its result, it is also possible to
First calculate the energy feedback parameter of multiple automobile to be measured, and take its meansigma methods, to strengthen the accuracy of result of calculation.
Computer 1, is also connected with power analyzer 3, for according to the operation power obtained, calculating the energy of automobile to be measured
Feedback parameter, this energy feedback parameter may include that energy feedback value and energy feedback ratio.
In the present embodiment, above-mentioned electric automobile energy feedback detecting system simple in construction, easy to operate, and shared place
Less, can effectively reduce testing cost.
In the present embodiment, when the running status of automobile to be measured is controlled, have employed regulation and input automobile to be measured
Control the method that voltage regulates its dynamic operation torque, in order to effectively utilize said method, need first to calculate automobile to be measured
Dynamic operation torque and the relation controlled between voltage, to this end, the control voltage first preset to automobile to be measured input, and synchronize from
Obtain on circuit dynamometer machine and control the dynamic operation torque result that voltage is corresponding.
Alternatively, computer 1, it is additionally operable to the control voltage preset to automobile to be measured input, controls voltage and include: be used for controlling
That makes car ACCEL to be measured accelerates control voltage and for controlling the control for brake voltage of automobile brake pedal to be measured.
Electric dynamometer 2, is additionally operable to obtain automobile to be measured corresponding dynamically fortune under conditions of input default control voltage
Row torque.
Specifically, the corresponding relation controlled between voltage and dynamic operation torque includes: accelerates to control voltage and accelerates to turn
Corresponding relation between corresponding relation between square, and control for brake voltage and deceleration torque.
Computer 1, is additionally operable to according to the default control voltage inputted to automobile to be measured and acquisition from electric dynamometer 2
Dynamic operation torque, calculates the corresponding relation controlled between voltage and dynamic operation torque.
Computer 1, is additionally operable to the dynamic operation torque in the detection cycle of the automobile to be measured according to simulation, calculates to be measured
Automobile control voltage in the detection cycle；
Computer 1, is additionally operable to input, to automobile to be measured, the control voltage calculated, and controls automobile to be measured according to simulating out
Dynamic operation torque, on electric dynamometer 2, carries out being periodically detected operation.
Alternatively, computer 1, it is additionally operable to store the corresponding relation controlled between voltage and dynamic operation torque, for similar
The energy feedback detection of type electric automobile uses.
In actual applications, when being not required to carry out energy feedback detection every time, all recalculate a secondary control voltage with
Corresponding relation between dynamic operation torque, but the corresponding relation controlled between voltage and dynamic operation torque can be stored,
Reuse during for detecting with the energy feedback of type electric automobile.
The embodiment of the present invention passes through computer, electric dynamometer, power analyzer, constitutes electric automobile energy feedback inspection
Examining system, wherein, computer is for according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, simulating to be measured
The automobile dynamic operation torque for controlling its velocity variations in the detection cycle；Computer be additionally operable to control automobile to be measured by
According to simulation dynamic operation torque out, on electric dynamometer, carry out cycling service；Thus, this electric automobile energy returns
Feedback detecting system, follows default operating mode examination criteria during detection, and its testing result has good reference value, and
Automobile to be measured has only to detect on circuit dynamometer machine, it is not necessary to special detection place, and testing cost is low, it addition, detection
Process automatically controls automobile to be measured and runs according to simulation dynamic operation torque out, it is to avoid the error that pilot steering brings,
Make testing result more accurately and reliably.It is additionally, above-mentioned electric automobile energy feedback detecting system simple in construction, easy to operate,
And shared place is less, can effectively reduce testing cost.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can pass through hardware
Completing, it is also possible to instruct relevant hardware by program and complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read only memory, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. an electric automobile energy feedback detection method, it is characterised in that described method includes:
According to default operating mode examination criteria and the car load operational factor of automobile to be measured, simulate described automobile to be measured in the detection cycle
In for controlling the dynamic operation torque of its velocity variations, described dynamic operation torque includes: accelerating torque and deceleration torque；
Control described automobile to be measured according to simulation dynamic operation torque out, on electric dynamometer, be periodically detected
Run；
Obtaining the described automobile to be measured operation power within each detection cycle, described operation power includes: input power and defeated
Go out power；
According to the operation power obtained, calculate the energy feedback parameter of described automobile to be measured.
Method the most according to claim 1, it is characterised in that described control automobile to be measured turns according to the operation simulated out
Square, on electric dynamometer, carries out being periodically detected operation, including:
The control voltage preset to the input of described automobile to be measured, and it is corresponding to obtain described automobile to be measured from described electric dynamometer
Dynamic operation torque, described control voltage includes: control voltage and being used for for controlling the acceleration of car ACCEL to be measured
Control the control for brake voltage of automobile brake pedal to be measured；
Turn according to the default control voltage inputted to described automobile to be measured and the dynamic operation obtained from described electric dynamometer
Square, calculates the corresponding relation controlled between voltage and dynamic operation torque；
The dynamic operation torque in the detection cycle of the automobile to be measured according to simulation, calculates automobile to be measured in the detection cycle
Control voltage；
Input the control voltage calculated to automobile to be measured, control described system automobile to be measured and turn according to the dynamic operation simulated out
Square, on electric dynamometer, carries out being periodically detected operation.
Method the most according to claim 2, it is characterised in that corresponding between described control voltage and dynamic operation torque
Relation includes:
Accelerate to control the corresponding relation between voltage and accelerating torque, and the corresponding pass between control for brake voltage and deceleration torque
System.
Method the most according to claim 3, it is characterised in that also include:
Store the corresponding relation controlled between voltage and dynamic operation torque, make for detecting with the energy feedback of type electric automobile
With.
Method the most according to claim 1, it is characterised in that defeated in each cycle of operation of described acquisition automobile to be measured
Enter power and output, including:
By being arranged on the power analyzer in automobile to be measured, obtain the described automobile to be measured operation merit in each cycle of operation
Rate.
6. an electric automobile energy feedback detecting system, it is characterised in that including:
Computer (1), for according to the operating mode examination criteria preset and the car load operational factor of automobile to be measured, simulating described to be measured
The automobile dynamic operation torque for controlling its velocity variations in the detection cycle, described dynamic operation torque includes: accelerate
Torque and deceleration torque；
Electric dynamometer (2), for supplying described automobile to be measured in the detection cycle, carries out detection and runs；
Described computer (1), is connected with described automobile to be measured and described electric dynamometer (2) respectively, is additionally operable to described in control treat
Survey automobile, according to the dynamic operation torque simulated out, on described electric dynamometer (2), carries out cycling service；
Power analyzer (3), is connected with described automobile to be measured, for obtaining the described automobile to be measured fortune within each detection cycle
Row power, described operation power includes: input power and output；
Described computer (1), is also connected with described power analyzer (3), is used for the operation power according to acquisition, treats described in calculating
Survey the energy feedback parameter of automobile.
System the most according to claim 6, it is characterised in that described computer (1), is additionally operable to described automobile to be measured defeated
Entering default control voltage, described control voltage includes: control voltage and use for controlling the acceleration of car ACCEL to be measured
In the control for brake voltage controlling automobile brake pedal to be measured；
Described electric dynamometer (2), is additionally operable to obtain described automobile to be measured corresponding under conditions of input default control voltage
Dynamic operation torque；
Described computer (1), is additionally operable to according to the default control voltage inputted to described automobile to be measured with from described electric power measurement of power
The upper dynamic operation torque obtained of machine (2), calculates the corresponding relation controlled between voltage and dynamic operation torque；
Described computer (1), is additionally operable to the dynamic operation torque in the detection cycle of the automobile to be measured according to simulation, calculates and treat
Survey automobile control voltage in the detection cycle；
Described computer (1), is additionally operable to input, to automobile to be measured, the control voltage that calculates, control described automobile to be measured according to
Simulation dynamic operation torque out, on described electric dynamometer (2), carries out being periodically detected operation.
System the most according to claim 7, it is characterised in that corresponding between described control voltage and dynamic operation torque
Relation includes:
Accelerate to control the corresponding relation between voltage and accelerating torque, and the corresponding pass between control for brake voltage and deceleration torque
System.
System the most according to claim 8, it is characterised in that described computer (1), is additionally operable to store control voltage with dynamic
State runs the corresponding relation between torque, and the energy feedback for same type electric automobile detects.
Priority Applications (1)
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| CN112034345A (en) * | 2020-09-28 | 2020-12-04 | 上海电气集团股份有限公司 | High-temperature durability test method for vehicle motor |
| CN112378677A (en) * | 2020-11-05 | 2021-02-19 | 上汽通用五菱汽车股份有限公司 | Data processing method for economic test of electric automobile |
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| CN106153354B (en) | 2018-10-23 |
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