CN112197978A - Electric automobile continuation of journey mileage simulation testing arrangement - Google Patents
Electric automobile continuation of journey mileage simulation testing arrangement Download PDFInfo
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- CN112197978A CN112197978A CN202011065287.8A CN202011065287A CN112197978A CN 112197978 A CN112197978 A CN 112197978A CN 202011065287 A CN202011065287 A CN 202011065287A CN 112197978 A CN112197978 A CN 112197978A
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- 238000004088 simulation Methods 0.000 title claims abstract description 100
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000006399 behavior Effects 0.000 claims abstract description 37
- 238000007600 charging Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 11
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 6
- 239000008358 core component Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010278 pulse charging Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention discloses a driving mileage simulation test device of an electric automobile, which comprises a finished automobile control system simulation device, a driving behavior simulation device, a finished automobile unit simulation device, a sensor unit simulation device, an SCU (System Unit) simulation device, a motor simulation device, a speed reduction system simulation device, a load unit simulation device, a charging unit, a discharging unit, a battery simulation unit and a low-voltage accessory unit simulation device. The testing device provided by the invention utilizes the electric automobile endurance mileage simulation testing device to effectively simulate the vehicle running behaviors of the whole automobile under different cycle working conditions, and fully achieves the purpose of simulating the simulation test of the whole automobile under the real running working condition.
Description
Technical Field
The invention relates to a testing device, in particular to a device for simulating and testing the endurance mileage of an electric automobile.
Background
In recent years, as the environment has been deteriorated and the greenhouse effect has become more serious, the emission of gas from the conventional automobile has become one of the important factors for environmental pollution, which has made people aware of the importance of developing an environment-friendly automobile. Therefore, people pay more and more attention to the research and development of pure electric vehicles and hybrid new energy vehicles, wherein more and more people are dedicated to the development and research of electric vehicles due to the advantages of the pure electric vehicles in terms of energy utilization rate and environmental protection, and the pure electric vehicles are considered as the development trend of the vehicles in the future. The driving mileage of the electric vehicle is a main factor considered by people for purchasing the electric vehicle. The existing endurance mileage testing device is to place the whole vehicle on a testing bench and conduct uniform-speed forward measurement at 60 km/h, the measurement result is ideal, the cycle working condition of the vehicle is not met, the measurement result is inaccurate, the measurement cost is high, and the risk is large.
Just facing above-mentioned existing problem, design an electric automobile continuation of journey mileage simulation testing arrangement now.
Disclosure of Invention
The invention aims to provide a device for simulating and testing the endurance mileage of an electric automobile, which solves the problems of inaccurate measurement result, high measurement cost and high risk in the prior art.
The purpose of the invention can be realized by the following technical scheme:
the testing device comprises a whole vehicle control system simulation device, a driving behavior simulation device, a whole vehicle unit simulation device, a sensor unit simulation device, an SCU unit simulation device, a motor simulation device, a speed reduction system simulation device, a load unit simulation device, a charging unit, a discharging unit, a battery simulation unit and a low-voltage accessory unit simulation device.
The whole vehicle control system simulation device is a core component of the whole simulation test device, and the main action of the whole vehicle control system simulation device is to receive related signals and then realize the purpose of simulating real cyclic working condition actions according to the signals and preset control logic, wherein the real cyclic working condition actions comprise driving working conditions and energy recovery working conditions.
The driving behavior simulation device has the main functions of simulating different driving conditions of the whole vehicle, transmitting driving signals to the whole vehicle control system simulation device to realize signal transmission of different driving behaviors, inputting the driving signals to the whole vehicle control system simulation device, and further adopting different control behaviors, wherein the driving signals comprise brake signals, acceleration signals, parking signals and idle speed signals.
The whole vehicle unit simulation device is mainly used for receiving the control behavior output by the whole vehicle control system simulation device, calculating the theoretical speed of the whole vehicle by combining signals output by the speed reduction system simulation device and the load unit simulation device, and transmitting the speed signal to the sensor unit simulation device.
Furthermore, the sensor unit simulation device comprises a mileage sensor and a speed sensor, and is mainly used for recording the cyclic driving mileage and feeding back a corresponding speed signal to the driving behavior simulation device so as to achieve the purpose of following the cyclic working condition.
Furthermore, the SCU unit simulator is used for simply simulating some safety control behaviors of a BMS management system on the electric vehicle, and sets a corresponding charging and discharging alarm limit value in the SCU unit simulator so as to more accurately approach a real charging and discharging behavior of the electric vehicle, and the main input parameters of the device are as follows: and (4) current limit value of the power battery under pulse charging and discharging and rated charging and discharging.
Further, the motor simulation device is used for transmitting the torque request and the motor speed signal of the whole vehicle to the simulation device of the control system of the whole vehicle according to different driving conditions of the whole vehicle to realize signal transmission of different driving behaviors, the simulation device of the control system of the whole vehicle is input to further adopt different control behaviors, and main preset parameters of the device are as follows: efficiency of the motor and external characteristic curve.
Furthermore, the speed reduction system simulation device is used for simulating a speed reducer system unit in an electric automobile so as to transmit the speed reducer system unit to the whole automobile unit simulation device to achieve the purpose of automobile running, and main input parameters of the device are as follows: the efficiency of the retarder system.
Furthermore, the load unit simulation device is used for increasing the load and accurately testing the reasonable load range of the electric automobile during the running of the electric automobile.
Further, the charging unit is used for charging the battery, and the discharging unit is used for outputting the power in the battery.
Furthermore, the battery simulation unit is used for providing power output of the simulation power battery system under different driving conditions and power consumption requirements of the low-voltage auxiliary unit simulation device, and main input parameters of the device are as follows: the series-parallel connection form of the power battery, the battery capacity and the like.
Furthermore, the low-voltage accessory unit simulation device is used for electric quantity monitoring and fault detection, can collect information such as operating current, voltage and temperature of the low-voltage line unit, calculates active power and reactive power of the line, and can detect line fault current and give a fault alarm when the line fails.
The invention has the beneficial effects that:
1. the testing device provided by the invention is used for actually measuring and simulating the circulation testing behavior of the whole vehicle in the real state according to different driving circulation working conditions, effectively reducing the project development cost, and providing effective suggestions for the subsequent whole vehicle in the actual vehicle road test stage so as to achieve the purposes of saving the project development cost and avoiding risks;
2. the testing device provided by the invention is a simple and effective simulation testing device for simulating the endurance mileage of the electric automobile, fully achieves the purpose of simulating the simulation test of the whole automobile under the real operating condition, and is simple in structure and convenient to operate.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a test apparatus system according to 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.
A device for simulating and testing the endurance mileage of an electric automobile is shown in figure 1 and comprises a whole automobile control system simulation device, a driving behavior simulation device, a whole automobile unit simulation device, a sensor unit simulation device, an SCU (battery safety control) unit simulation device, a motor simulation device, a speed reduction system simulation device, a load unit simulation device, a charging unit, a discharging unit, a battery simulation unit and a low-voltage accessory unit simulation device.
The whole vehicle control system simulation device is a core component of the whole simulation test device, and the main action of the device is to receive related signals and realize the purpose of simulating real cyclic working condition actions according to the signals and preset control logic, wherein the real cyclic working condition actions comprise driving working conditions and energy recovery working conditions.
The driving behavior simulating device is mainly used for simulating different driving conditions of the whole vehicle, signal transmission of different driving behaviors is achieved by transmitting driving signals to the whole vehicle control system simulating device, the whole vehicle control system simulating device is input, and then different control behaviors are adopted, wherein the driving signals comprise braking signals, accelerating signals, parking signals and idling signals.
The whole vehicle unit simulation device is mainly used for receiving the control behavior output by the whole vehicle control system simulation device, calculating the theoretical speed of the whole vehicle by combining signals output by the speed reduction system simulation device and the load unit simulation device, and transmitting the speed signal to the sensor unit simulation device.
The sensor unit simulation device comprises a mileage sensor and a speed sensor and is mainly used for recording the cyclic driving mileage and feeding back a corresponding speed signal to the driving behavior simulation device so as to fulfill the aim of following the cyclic working condition.
SCU unit analogue means is used for simply simulating some safety control action of BMS management system on the electric automobile, sets up corresponding charge-discharge alarm limit value in SCU unit analogue means to more accurate electric automobile charge-discharge action that is close to reality more, the main input parameter of this set of device is: and (4) current limit value of the power battery under pulse charging and discharging and rated charging and discharging.
The motor simulation device is used for transmitting a finished automobile torque request and a motor speed signal to the finished automobile control system simulation device to realize signal transmission of different driving behaviors according to different driving conditions of the finished automobile, the finished automobile control system simulation device is input to further adopt different control behaviors, and main preset parameters of the device are as follows: efficiency of the motor and external characteristic curve.
The speed reducing system simulator is used for simulating a speed reducing system unit in an electric automobile so as to transmit the speed reducing system unit to the whole automobile unit simulator to achieve the purpose of automobile driving, and main input parameters of the device are as follows: the efficiency of the retarder system.
The load unit simulation device is used for increasing loads and accurately testing the reasonable load range of the electric automobile during driving of the electric automobile.
The charging unit is used for charging the battery, and the discharging unit is used for outputting the power in the battery.
The battery simulation unit is used for providing power output of the simulation power battery system under different driving conditions and power consumption requirements of the low-voltage auxiliary unit simulation device, and main input parameters of the device are as follows: the series-parallel connection form of the power battery, the battery capacity and the like.
The low-voltage accessory unit simulation device is used for electric quantity monitoring and fault detection, can collect information such as running current, voltage and temperature of a low-voltage line unit, calculates active power and reactive power of a line, and can detect line fault current and give a fault alarm when the line fails.
The following describes a device for simulating and testing the driving range of an electric vehicle according to the present invention by referring to several embodiments.
Example 1
When the driving behavior simulating device outputs a brake signal and transmits the brake signal to the whole vehicle control system simulating device, the whole vehicle control system simulating device controls the SCU simulating device to output a signal, the discharging unit is controlled to stop discharging, the charging unit is controlled to charge the battery, the motor simulating device is controlled to output a corresponding signal and transmits the signal to the whole vehicle control system simulating device and the speed reduction simulating device, the whole vehicle unit simulating device receives the signals and outputs the brake signal to the sensor unit, during the brake signal period, the sensor unit detects the driving speed and the mileage of the vehicle and feeds the signals back to the driving behavior simulating device, and finally the whole vehicle unit simulating device integrates the signals and outputs the signals to an experimenter.
Example 2
When the driving behavior simulating device outputs an acceleration signal and transmits the acceleration signal to the whole vehicle control system simulating device, the whole vehicle control system simulating device controls the SCU simulating device to output a signal, controls the discharging unit to discharge, controls the charging unit to charge the battery, controls the motor simulating device to output a corresponding signal and transmits the signal to the whole vehicle control system simulating device and the deceleration simulating device, the whole vehicle unit simulating device receives the signals and outputs an acceleration signal to the sensor unit, during the acceleration signal, the sensor unit detects the driving speed and the mileage of the vehicle and feeds the acceleration signal back to the driving behavior simulating device, and finally, the whole vehicle unit simulating device integrates the signals and outputs the signals to an experimenter.
Example 3
When the idling signal is output by the driving behavior simulating device and is transmitted to the whole vehicle control system simulating device, the whole vehicle control system simulating device controls the SCU simulating device to output a signal, the discharging unit is controlled to discharge, the charging unit is controlled to charge the battery, the motor simulating device is controlled to output a corresponding signal and transmits the signal to the whole vehicle control system simulating device and the speed reduction simulating device, the whole vehicle unit simulating device receives the signals and outputs the idling signal to the sensor unit, during the idling signal period, the sensor unit detects the driving speed and the mileage of the vehicle and feeds the idling signal back to the driving behavior simulating device, and finally the whole vehicle unit simulating device integrates the signals and outputs the signals to an experimenter.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (9)
1. A kind of electric automobile continuation of journey mileage imitates the testing device, characterized by that, the said testing device includes the analog device of the control system of the whole car, imitates the apparatus of the driving behavior, unit analog device of the whole car, analog device of the sensor unit, SCU unit analog device, analog device of the electrical machinery, analog device of the deceleration system, load unit analog device, charging unit, discharge unit, battery analog unit and low-voltage attachment unit analog device;
the whole vehicle control system simulation device is a core component of the whole simulation test device, and the main action of the whole vehicle control system simulation device is to receive related signals and then realize the purpose of simulating real cyclic working condition actions according to the signals and preset control logic, wherein the real cyclic working condition actions comprise driving working conditions and energy recovery working conditions;
the driving behavior simulation device is mainly used for simulating different driving conditions of the whole vehicle, signal transmission of different driving behaviors is realized by transmitting driving signals to the whole vehicle control system simulation device, the whole vehicle control system simulation device is input, and then different control behaviors are adopted, wherein the driving signals comprise brake signals, acceleration signals, parking signals and idle speed signals;
the whole vehicle unit simulation device is mainly used for receiving the control behavior output by the whole vehicle control system simulation device, calculating the theoretical speed of the whole vehicle by combining signals output by the speed reduction system simulation device and the load unit simulation device, and transmitting the speed signal to the sensor unit simulation device.
2. The device for simulating and testing the driving mileage of the electric vehicle as claimed in claim 1, wherein the sensor unit simulation device comprises a mileage sensor and a speed sensor, and is mainly used for recording the cyclic driving mileage and feeding back a corresponding speed signal to the device for simulating the driving behavior so as to achieve the purpose of following the cyclic working condition.
3. The driving mileage simulation testing device of an electric vehicle as claimed in claim 1, wherein the SCU unit simulator is used to simply simulate some safety control behaviors of the BMS management system on the electric vehicle, and sets corresponding charging and discharging alarm limit values in the SCU unit simulator to more accurately approach the real charging and discharging behaviors of the electric vehicle, and the main input parameters of the device are: and (4) current limit value of the power battery under pulse charging and discharging and rated charging and discharging.
4. The electric vehicle endurance mileage simulation testing device of claim 1, wherein the motor simulation device is used for transmitting a vehicle torque request and a motor speed signal to the vehicle control system simulation device according to different driving conditions of the vehicle to realize signal transmission of different driving behaviors, the vehicle control system simulation device is input to further adopt different control behaviors, and main preset parameters of the device are as follows: efficiency of the motor and external characteristic curve.
5. The electric vehicle driving mileage simulation test device according to claim 1, wherein the deceleration system simulation device is used for simulating a deceleration system unit in an electric vehicle to transmit to the whole vehicle unit simulation device for the purpose of vehicle driving, and the main input parameters of the device are as follows: the efficiency of the retarder system.
6. The device for simulating and testing the driving mileage of the electric vehicle as claimed in claim 1, wherein the load cell simulator is used for providing a reasonable load range for accurately testing the electric vehicle by increasing the load during the driving of the electric vehicle.
7. The device for simulating and testing the driving mileage of an electric vehicle as claimed in claim 1, wherein the charging unit is used for charging the battery, and the discharging unit is used for outputting the electric power from the battery.
8. The device for simulating and testing the driving mileage of the electric automobile as claimed in claim 1, wherein the battery simulation unit is used for providing power output of the simulated power battery system under different driving conditions and power consumption requirements of the low-voltage auxiliary unit simulation device, and the main input parameters of the device are as follows: the series-parallel connection form of the power battery, the battery capacity and the like.
9. The device for simulating and testing the driving mileage of the electric vehicle as claimed in claim 1, wherein the low voltage accessory unit simulator is used for electric quantity monitoring and fault detection, and can collect information such as operating current, voltage and temperature of the low voltage line unit, calculate active and reactive power of the line, detect line fault current when the line is in fault and give a fault alarm.
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| CN202011065287.8A CN112197978A (en) | 2020-09-30 | 2020-09-30 | Electric automobile continuation of journey mileage simulation testing arrangement |
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| CN202011065287.8A CN112197978A (en) | 2020-09-30 | 2020-09-30 | Electric automobile continuation of journey mileage simulation testing arrangement |
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Cited By (1)
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2020
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