CN112798167B - Method and device for testing torque response time of power assembly of electric vehicle - Google Patents
Method and device for testing torque response time of power assembly of electric vehicle Download PDFInfo
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- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
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Abstract
The invention discloses a method and a device for testing torque response time of a power assembly of an electric vehicle, which comprises the steps of setting a test part, compiling a DBC file, configuring a CAN channel, setting original test data, acquiring actual torque data information, processing the data information and then obtaining the torque response time of the power assembly. The invention solves the problem that the conventional electric vehicle has no method for testing the torque response time of the power assembly, can test the torque response time of the power assembly of the electric vehicle, and provides powerful data reference for the power performance, the driving performance, the vehicle response under emergency and the like of the electric vehicle.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a method and a device for testing torque response time of a power assembly of an electric vehicle.
Background
The electric vehicle generally controls a driving motor through a control system to drive a driving axle to work, and the output end of the driving axle outputs torque to drive wheels to rotate so as to realize the running of the vehicle. The torque response time is an important parameter for measuring the dynamic characteristics of the electric vehicle, and directly influences the dynamic performance, the driving performance, the vehicle response in an emergency situation and the like of the electric vehicle. However, the torque response time test method in the current national electric vehicle standard only has relevant description on the driving motor of the electric vehicle, and the description of the torque response time test method of the driving motor of the electric vehicle in the national standard is not exhaustive enough, and the implementation of the torque response time test cannot be effectively guided.
Disclosure of Invention
Aiming at the defects, the invention provides a method for testing the torque response time of the power assembly of the electric vehicle, which can test the torque response time of the power assembly of the electric vehicle; the invention also provides a device for testing the torque response time of the power assembly of the electric vehicle for implementing the testing method.
In order to solve the technical problems, the technical scheme of the invention is as follows: the electric vehicle powertrain torque response time testing method comprises the following steps:
the method comprises the steps of setting a test part, connecting two output ends of a drive axle of the electric vehicle of the test part with an actual torque information acquisition device, and connecting a motor controller of a drive motor of the electric vehicle with an upper computer;
compiling a DBC file, compiling the DBC file according to a motor controller communication protocol;
the CAN channel configuration is realized, wherein DBC files are imported into an upper computer and a CAN channel is configured;
setting original test data, formulating original test data information and inputting the original test data information into an upper computer for storage;
the upper computer sends a required torque signal, the motor controller receives and processes the required torque signal and sends an instruction to control the driving motor to work, and the driving motor drives the driving axle to work and output torque;
actual torque data information is obtained, and the actual torque data information output by two output ends of the drive axle is obtained by an actual torque information obtaining device and is transmitted to an upper computer;
and processing data information, finishing the test, and processing the acquired original test data information and the actual torque data information to obtain the torque response time of the power assembly.
As a preferred technical scheme, the original test data setting includes a test condition data setting and an original test data acquisition signal setting, wherein:
the test condition data comprises low-voltage control power supply voltage, direct-current input voltage of a motor controller, required torque, original test data acquisition time interval and original test data storage time;
the original test data acquisition signals comprise acquisition time signals, demand torque signals and actual torque signals.
As a preferred technical solution, the data information processing includes:
recording the moment t when the upper computer sends the required torque signal for the first time0；
Calculating the actual torque Toqreal：
Toqreal＝Toq1#+Toq2#
Wherein, Toq1#And Toq2#Actual torques output by two output ends of the drive axle respectively;
calculating the target Torque Toqtag：
Toqtag＝Toqreq×i
Wherein i is a drive axle transmission ratio; toq (total internal diameter)reqIs the required torque;
after the upper computer sends out a demand torque signal, the demand torque signal immediately reaches the motor controller, and the motor controller delays T after a period of timedelayControlling a driving motor to drive a driving axle to work and output torque to obtain an actual torque fluctuation curve;
the actual torque passes through a rise time TriseEntering a dynamic torque fluctuation interval T after the actual torque fluctuation curve reaches a first torque peakdynThe actual torque fluctuation curve gradually becomes stable and then enters a static torque fluctuation interval Tste；
Calculating the static Torque Toqste_ave：
Wherein the content of the first and second substances,n is the number of data points in the static torque fluctuation interval, Toqste_realThe actual torque of the current data point in the static torque fluctuation interval;
at actual torque ToqrealReaches the static torque Toq for the first time in the static torque fluctuation intervalste_aveIs the end time tend，
Calculating and obtaining the torque response time T of the power assemblyres
Tres＝tend-t0。
As a preferred technical scheme, the absolute value of the torque difference value between any adjacent wave crest and wave trough on the actual torque fluctuation curve is larger than the torque tolerance ToqtolThe fluctuation interval of the torque sensor is a dynamic torque fluctuation interval; the absolute value of the torque difference value between any adjacent wave crest and wave trough on the actual torque fluctuation curve is not more than the torque tolerance ToqtolIs a static torque fluctuation interval, and the torque tolerance ToqtolComprises the following steps:
Toqtol＝Toqtag×5％。
as an optimal technical scheme, the time between the beginning of storing original test data information and the sending of a demand torque signal by an upper computer is dead time Temp(ii) a The peak or trough time of the dynamic torque wave interval and the static torque wave interval is the critical time tsep。
As a preferred technical scheme, the actual torque information acquisition device is a torque sensor respectively installed at two output ends of the drive axle, and the two torque sensors are respectively connected with a locked rotor device; and the upper computer is in communication connection with the motor controller through a CAN network.
The torque response time test device for the power assembly of the electric vehicle comprises a test bench, wherein two locked-rotor devices are fixedly arranged on the test bench, and are respectively provided with a torque sensor connected with two output ends of a drive axle of the electric vehicle; the test bench is further provided with a motor controller used for controlling a driving motor of the electric vehicle to work, the motor controller is connected with a direct-current power supply module, and the motor controller is further connected with a test control unit.
As a preferred technical scheme, the device also comprises a mobile power supply trolley, wherein a low-voltage power supply module for providing a low-voltage power supply for the electric vehicle is arranged on the mobile power supply trolley, and a CAN module for connecting the motor controller and the test control unit in a communication manner is also arranged on the mobile power supply trolley.
The method and the device for testing the torque response time of the power assembly of the electric vehicle, which adopt the technical scheme, comprise the following steps: the method comprises the steps of test component setting, DBC file compiling, CAN channel configuration, original test data setting, actual torque data information obtaining, and obtaining the torque response time of the power assembly after data information processing. The invention solves the problem that the conventional electric vehicle has no method for testing the torque response time of the power assembly, can test the torque response time of the power assembly of the electric vehicle, and provides powerful data reference for the power performance, the driving performance, the vehicle response under emergency and the like of the electric vehicle.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a plot of actual torque ripple in the inventive test;
FIG. 3 is a schematic view of a test apparatus of the present invention.
In the figure: 1-a locked rotor device; 2-a torque sensor; 3-a drive axle; 4-driving the motor; 5-a motor controller; 6-a direct current power supply module; 7-a mobile power supply trolley; 8-an upper computer.
Detailed Description
Exemplary embodiments according to the present invention are described in detail below with reference to the accompanying drawings. Here, it is to be noted that in the drawings, the same reference numerals are given to the components having substantially the same structure and function, and redundant description about the substantially same components is omitted in order to make the description more concise.
As shown in fig. 1 and 2, the method for testing the torque response time of the powertrain of the electric vehicle comprises the following steps:
setting a test part, connecting two output ends of a drive axle of the electric vehicle of the test part with an actual torque information acquisition device, and connecting a motor controller 5 of a drive motor 4 of the electric vehicle with an upper computer 8; the upper computer 8 is in communication connection with the motor controller 5 through a CAN network; the actual torque information acquisition device is two torque sensors 2 which are respectively arranged at two output ends of a drive axle 3, the two torque sensors 2 are respectively connected with a locked-rotor device 1, the two torque sensors 2 are respectively connected with the two output ends of the drive axle 3 through flanges, the two locked-rotor devices 1 are respectively connected with the two torque sensors 2# 1 and # 2 through flanges, and the two locked-rotor devices 1 are fixed on a test bed to realize a locked-rotor working condition; the two torque sensors 2 respectively detect and acquire actual torques Toq output by two output ends of the drive axle1#And Toq2#. Compiling a DBC file, namely compiling the DBC file according to a communication protocol of a motor controller 5; the upper computer 8 communicates with the motor controller 5 through a CAN network, the upper computer 8 communicates with the motor controller 5 to compile a DBC file according to a CAN communication protocol of the whole electric vehicle, and the file CAN contain control information such as motor required torque, motor required rotating speed, motor controller 5 enabling, motor control mode, cycle counter, fault code, rotating direction and the like;
the CAN channel configuration is realized, wherein DBC files are imported into the upper computer 8, and a CAN channel is configured; the DBC file is imported into software of an upper computer 8 and then configured with a signal channel to form a communication network, the upper computer 8 sends an instruction to a motor controller 5 through a CAN channel, and the instruction is used for controlling a driving motor 4 to work;
setting original test data, making original test data information and recording the original test data information into an upper computer 8 for storage;
the method comprises the steps that a demand torque signal is sent, an upper computer 8 sends the demand torque signal, a motor controller 5 receives and processes the demand torque signal and sends an instruction to control a driving motor 4 to work, and the driving motor 4 drives a driving axle 3 to work and output torque;
actual torque data information is obtained, and an actual torque information obtaining device obtains actual torque data information output by two output ends of the drive axle 3 and transmits the actual torque data information to an upper computer 8 to obtain an actual torque fluctuation curve;
and processing data information, finishing the test, and processing the acquired original test data information and the actual torque data information to obtain the torque response time of the power assembly.
And the original test data setting comprises test condition data setting and original test data acquisition signal setting, wherein:
the test condition data comprises low-voltage control power supply voltage, direct-current input voltage of a motor controller, required torque, original test data acquisition time interval and original test data storage time;
the original test data acquisition signals comprise acquisition time signals, demand torque signals and actual torque signals.
Wherein the data information processing comprises:
recording the moment t when the upper computer 8 sends the required torque signal for the first time0；
Calculating the actual torque:
Toqreal＝Toq1#+Toq2#
wherein, Toq1#And Toq2#The actual torques are respectively obtained by two torque sensors 2 arranged at two output ends of a drive axle 3;
calculating a target torque:
Toqtag＝Toqreq×i
wherein i is a drive axle transmission ratio; toq (total internal diameter)reqIs the required torque;
as shown in fig. 2, after the upper computer 8 sends the required torque signal, the required torque signal immediately reaches the motor controller 5, and the motor controller 5 responds with a delay T after a period of timedelayControlling a driving motor 4 to drive a driving axle 3 to work and output torque, so that an actual torque fluctuation curve in a torque response time test of the power assembly of the electric vehicle can be obtained;
the actual torque passes through a rise time TriseEntering a dynamic torque fluctuation interval T after the actual torque fluctuation curve reaches a first torque peakdynEntering after the actual torque fluctuation curve gradually becomes stableStatic torque fluctuation interval Tste；
Calculating static torque:
wherein n is the number of data points in the static torque fluctuation interval, Toqste_realThe actual torque of the current data point in the static torque fluctuation interval;
taking the moment when the actual torque rises to the static torque for the first time in the static torque fluctuation interval as the end moment tend，
Calculating and obtaining the torque response time T of the power assemblyres：
Tres＝tend-t0。
The absolute value of the torque difference value of any adjacent wave crest and wave trough on the actual torque fluctuation curve is larger than the torque tolerance ToqtolThe fluctuation interval of the torque sensor is a dynamic torque fluctuation interval; the absolute value of the torque difference value between any adjacent wave crest and wave trough on the actual torque fluctuation curve is not more than the torque tolerance ToqtolIs a static torque fluctuation interval, and the torque tolerance ToqtolComprises the following steps:
Toqtol＝Toqtag×5％。
on an actual torque fluctuation curve obtained in the torque response time test of the power assembly of the electric vehicle, the time between the beginning of storing original test data information and the sending of a demand torque signal by the upper computer 8 is dead time Temp(ii) a The peak or trough time of the dynamic torque wave interval and the static torque wave interval is the critical time tsep。
As shown in fig. 2, the following is an example of the torque response time test of the powertrain of the electric vehicle:
setting the low-voltage power supply voltage to be 12V, the direct-current input voltage of a motor controller to be 336V and the required torque Toqreq210 N.m, and the original test data storage time interval is 4 s;
the torque response time raw test data information obtained by the test is shown in the following table.
The first sending time t of the torque signal sent by the upper computer 8 is obtained from the table0Is 2.64 s;
calculating the actual torque Toqreal：
According to Toqreal＝Toq1#+Toq2#The actual torques Toq are obtained as shown in the tablereal；
Calculating the target Torque Toqtag：
Toqtag＝Toqreq*i＝210×14.77N·m＝3101.7N·m；
Wherein the transmission ratio i is 14.77;
calculating the torque tolerance Toqtol：
Toqtol＝Toqtag×5％＝3101.7×0.05N·m＝155.1N·m；
Calculating the absolute value of the torque difference value between the adjacent wave crest and the wave trough to obtain the absolute value of the torque difference value between the adjacent wave crest and the wave trough as shown in the table;
obtaining the critical time tsepIs 3.67 s;
therefore, the dynamic torque fluctuation range is 3.07 s-3.67 s, and the static torque fluctuation range is 3.67 s-4.56 s;
calculating static Torque Toqste_ave：
Actual torque Toq in reference tablerealTo obtain the end time tendIs 3.69 s;
calculating powertrain torque response time Tres：
Tres＝tend-t0＝3.69s-2.64s＝1.05s。
When the torque of the power assembly of the electric vehicle respondsIn the Experimental example Table, Toq1#And Toq2#Actual torque values output by two output ends of the drive axle are respectively acquired by the two torque sensors 2. The acquisition time can also adopt a uniform time interval of 10ms or 20ms and the like for acquisition.
As shown in fig. 3, the torque response time testing device for the power assembly of the electric vehicle comprises a test bench, wherein two locked rotor devices 1 are fixedly mounted on the test bench, the two locked rotor devices 1 are respectively provided with torque sensors 2 connected with two output ends of a drive axle 3 of the electric vehicle, and the two torque sensors 2 are respectively connected with two output ends of the drive axle 3 through flanges; the locked rotor device 1 can adopt the locked rotor device 1 adopted in the existing electric vehicle torque response time test method, for example, a locked rotor block with a flange can be adopted, the locked rotor block is connected with the torque sensor 2 through the flange, and the locked rotor block is fixed on a test bed and other structural modes, which are common general knowledge and are not described herein. Still be provided with motor controller 5 that is used for controlling the work of driving motor 4 of electric motor car on the test bench, motor controller 5 is connected with DC power supply module 6, motor controller 5 still is connected with experimental control unit, and experimental control unit can adopt host computer 8. The two torque sensors 2 are used for acquiring actual torque information of two output ends of the drive axle 3 and transmitting the actual torque information to the upper computer 8; the electric vehicle is characterized by further comprising a mobile power supply trolley 7, wherein a low-voltage power supply module for providing a low-voltage power supply for the electric vehicle is arranged on the mobile power supply trolley 7, and the low-voltage power supply module can adopt a storage battery; the portable power source trolley 7 is further provided with a CAN module for communication connection of the motor controller 5 and the test control unit, and the upper computer 8 and the motor controller 5 are communicated through a CAN network to be connected with the test system.
When the device works, the two output ends of the drive axle 3 are respectively connected with the torque sensor 2, and the two torque sensors 2 are respectively connected with the locked rotor device 1 and used for acquiring the actual torque Toq output by the two output ends of the drive axle1＃And Toq2＃。
The locked rotor device 1 is connected with a test bed, a direct current power supply module 6 provides a high-voltage power supply for a motor controller 5 to drive a driving motor 4 to work, an upper computer 8 is used for sending instructions and receiving information transmitted by two torque sensors 2, the motor controller 5 and the like, and a mobile power supply trolley 7 comprises a CAN module and is used for receiving the instructions of the upper computer 8 and sending the instructions to the motor controller 5; the low-voltage power supply module of the mobile power supply trolley 7 provides a low-voltage power supply for the electric vehicle and the whole vehicle wire harness, and the upper computer 8 is communicated with the motor controller 5 through the CAN module. The upper computer 8 sends a demand torque instruction, and sends the instruction to the motor controller 5 through the CAN module, so as to control the driving motor 4 to enable the driving axle 3 to output actual torque for testing.
As described above, the embodiments of the present invention have been specifically described above, but the present invention is not limited thereto. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations, or substitutions may be made in accordance with design requirements or other factors while remaining within the scope of the appended claims and their equivalents.
Claims (4)
1. The method for testing the torque response time of the power assembly of the electric vehicle is characterized by comprising the following steps of:
the method comprises the steps of setting a test part, connecting two output ends of a drive axle of the electric vehicle of the test part with an actual torque information acquisition device, and connecting a motor controller of a drive motor of the electric vehicle with an upper computer;
compiling a DBC file, compiling the DBC file according to a motor controller communication protocol;
the CAN channel configuration is realized, wherein DBC files are imported into an upper computer and a CAN channel is configured;
setting original test data, formulating original test data information and inputting the original test data information into an upper computer for storage;
the method comprises the steps that a demand torque signal is sent, an upper computer sends the demand torque signal, a motor controller receives and processes the demand torque signal and sends an instruction to control a driving motor to work, and the driving motor drives a driving axle to work and output torque;
actual torque data information is obtained, and the actual torque data information output by two output ends of the drive axle is obtained by an actual torque information obtaining device and is transmitted to an upper computer;
processing data information, finishing the test, processing the obtained original test data information and the actual torque data information, and obtaining the torque response time of the power assembly;
the original test data setting comprises test condition data setting and original test data acquisition signal setting; wherein:
the test condition data comprises low-voltage control power supply voltage, direct-current input voltage of a motor controller, required torque, original test data acquisition time interval and original test data storage time;
the original test data acquisition signals comprise acquisition time signals, demand torque signals and actual torque signals;
the data information processing includes:
recording the moment t when the upper computer sends the required torque signal for the first time0；
Calculating the actual torque Toqreal：
Toqreal＝Toq1#+Toq2#
Wherein, Toq1#And Toq2#Actual torques output by two output ends of the drive axle respectively;
calculating the target Torque Toqtag：
Toqtag＝Toqreq×i
Wherein i is a drive axle transmission ratio; toq (total internal diameter)reqIs the required torque;
after the upper computer sends out a demand torque signal, the demand torque signal immediately reaches the motor controller, and the motor controller delays T after a period of timedelayStarting to control a driving motor to drive a driving axle to work and output torque;
the actual torque passes through a rise time TriseEntering a dynamic torque fluctuation interval T after the actual torque fluctuation curve reaches a first torque peakdynThe actual torque fluctuation curve gradually becomes stable and then enters a static torque fluctuation interval Tste；
Calculating static Torque Toqste_ave：
Wherein n is the number of data points in the static torque fluctuation interval, Toqste_realThe actual torque of the current data point in the static torque fluctuation interval;
taking the moment when the actual torque value reaches the static torque value for the first time in the static torque fluctuation interval as the end moment tend，
Calculating and obtaining the torque response time T of the power assemblyres：
Tres＝tend-t0。
2. An electric vehicle powertrain torque response time test method as set forth in claim 1, characterized in that: the absolute value of the torque difference value of any adjacent wave crest and wave trough on the actual torque fluctuation curve is larger than the torque tolerance ToqtolThe fluctuation interval of the torque sensor is a dynamic torque fluctuation interval; the absolute value of the torque difference value between any adjacent wave crest and wave trough on the actual torque fluctuation curve is not more than the torque tolerance ToqtolIs a static torque fluctuation interval, and the torque tolerance ToqtolComprises the following steps:
Toqtol＝Toqtag×5％。
3. the electric vehicle powertrain torque response time test method of claim 1, characterized in that: the time between the original test data information and the transmission of the demand torque signal by the upper computer is the dead time Temp(ii) a The peak or trough time of the dynamic torque wave interval and the static torque wave interval is the critical time tsep。
4. An electric vehicle powertrain torque response time test method as claimed in any one of claims 1-3, characterized in that: the actual torque information acquisition device is a torque sensor which is respectively arranged at two output ends of the drive axle, and the two torque sensors are respectively connected with a locked rotor device; and the upper computer is in communication connection with the motor controller through a CAN network.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU94338U1 (en) * | 2009-10-09 | 2010-05-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Оренбургский государственный аграрный университет" | STAND FOR BREAK-IN AND TESTING OF THE KAMAZ-45143 CAR DRIVING BRIDGE |
| CN106644499A (en) * | 2016-09-09 | 2017-05-10 | 北京新能源汽车股份有限公司 | Electric automobile power assembly intensity test method and system |
| CN110926833A (en) * | 2019-12-26 | 2020-03-27 | 湖北航天技术研究院特种车辆技术中心 | Electric automobile test system and test method |
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206470066U (en) * | 2017-03-01 | 2017-09-05 | 北京新能源汽车股份有限公司 | A kind of power assembly of electric automobile testboard bay |
| CN207173272U (en) * | 2017-08-28 | 2018-04-03 | 无锡正瑞汽车传动技术有限公司 | A kind of integrated form new-energy automobile power assembly |
| CN109470958A (en) * | 2018-11-07 | 2019-03-15 | 湖南科技大学 | A kind of AMT power transmission system of automatic gearbox assembly testing experiment platform |
| CN211374985U (en) * | 2019-10-17 | 2020-08-28 | 中国机械设备工程股份有限公司 | Motor stalling test structure |
| CN112098115A (en) * | 2020-09-18 | 2020-12-18 | 云动(上海)汽车技术有限公司 | Test equipment and test method for automobile power assembly |
-
2021
- 2021-01-06 CN CN202110012734.1A patent/CN112798167B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU94338U1 (en) * | 2009-10-09 | 2010-05-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Оренбургский государственный аграрный университет" | STAND FOR BREAK-IN AND TESTING OF THE KAMAZ-45143 CAR DRIVING BRIDGE |
| CN106644499A (en) * | 2016-09-09 | 2017-05-10 | 北京新能源汽车股份有限公司 | Electric automobile power assembly intensity test method and system |
| CN110926833A (en) * | 2019-12-26 | 2020-03-27 | 湖北航天技术研究院特种车辆技术中心 | Electric automobile test system and test method |
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
Non-Patent Citations (1)
| Title |
|---|
| 电动汽车电机堵转测试方法与其测试***;石昊天等;《电机技术》;20180825(第04期);全文 * |
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