CN111238832A - Automatic working condition testing system and method for electric driving system of new energy automobile - Google Patents
Automatic working condition testing system and method for electric driving system of new energy automobile Download PDFInfo
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- CN111238832A CN111238832A CN202010127032.3A CN202010127032A CN111238832A CN 111238832 A CN111238832 A CN 111238832A CN 202010127032 A CN202010127032 A CN 202010127032A CN 111238832 A CN111238832 A CN 111238832A
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- motor
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
Abstract
The invention discloses an automatic working condition testing system and method for an electric driving system of a new energy automobile, wherein the system comprises a battery simulator, a motor controller, a motor, a dynamometer control unit, a water path circulating cooling system and a power analyzer; the device comprises a motor controller, a battery simulator, a dynamometer motor, a dynamometer control unit, a cooling system, a power analyzer and a power controller, wherein the motor controller is flexibly connected with the battery simulator, the motor is flexibly connected with the motor controller, the dynamometer motor is mechanically connected with the motor through a transmission shaft and a flange plate, the dynamometer control unit is flexibly connected with the dynamometer motor, the cooling system is respectively flexibly connected with the motor and the motor controller, and the power analyzer is flexibly connected with the motor controller. The invention has the advantages of clear circuit, convenient test and fault analysis, low maintenance cost and high accuracy of automatic working condition test results, and meets the requirements of different vehicle types; and the simulation road environment test work under the automatic working condition is verified and realized, and the simulation road environment test work is closer to the real state.
Description
Technical Field
The invention relates to an automatic working condition testing system and method for an electric driving system of a new energy automobile, and belongs to the technical field of testing of the electric driving system of the new energy automobile.
Background
The development of the automobile industry promotes the progress of the human society, makes great contribution to the development of the modern society and the economic growth, brings convenience and comfort to the life of people, but along with the increasing exploitation of crude oil, the shortage of natural resources becomes worse; the automobile exhaust is discharged in large quantity, and has irremovable responsibility for global warming and natural ecological environment deterioration. Therefore, in response to the green environmental protection concept, new energy electric vehicles gradually come into the view of the public and are increasingly gaining wide attention, acceptance and application.
The motor driving system plays a very important role in the whole vehicle, and the performance of the motor driving system actually determines the performance of the whole vehicle, including driving performance, power performance, driving range and the like, so that the new energy electric driving system testing technology is particularly critical.
Through the literature search of the prior art, no relevant literature related to the automatic working condition testing system of the new energy electric driving system exists at present.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic working condition testing system and method for an electric driving system of a new energy automobile, which can realize the test work of a simulated road environment under an automatic working condition and approach to a real state more.
The technical scheme adopted for solving the technical problems is as follows:
on the one hand, the automatic working condition testing system of the electric driving system of the new energy automobile provided by the embodiment of the invention comprises a battery simulator, a motor controller, a motor, a dynamometer control unit, a water path circulating cooling system and a power analyzer; the device comprises a motor controller, a battery simulator, a dynamometer motor, a dynamometer control unit, a cooling system, a power analyzer and a power controller, wherein the motor controller is flexibly connected with the battery simulator, the motor is flexibly connected with the motor controller, the dynamometer motor is mechanically connected with the motor through a transmission shaft and a flange plate, the dynamometer control unit is flexibly connected with the dynamometer motor, the cooling system is respectively flexibly connected with the motor and the motor controller, and the power analyzer is flexibly connected with the motor controller.
As a possible implementation manner of this embodiment, the battery simulator is used to replace a power battery, simulate an output state of a real power battery and a charging and discharging characteristic of the battery, and set to be constant in constant voltage, so as to supply power to the new energy electric drive system test system at constant voltage during a test.
As a possible implementation manner of this embodiment, the motor controller is configured to control the motor to operate according to a set direction, speed, angle, and response time through active operation.
As a possible implementation manner of the embodiment, the motor is used for converting electric energy into mechanical energy to drive the new energy automobile to run.
As a possible implementation manner of this embodiment, the dynamometer motor is used for performing simulation calculation analysis on motor load data and deriving data through the dynamometer control unit.
As a possible implementation manner of this embodiment, the dynamometer control unit is configured to simulate a change of a system load of the driving motor based on a complete vehicle simulation model and a set operation condition.
As a possible implementation manner of this embodiment, the power analyzer is configured to observe the change of the front-end direct current parameter and the back-end alternating current parameter of the motor controller.
As a possible implementation manner of this embodiment, the front-end direct current and the back-end alternating current parameters of the motor controller include current, voltage and power parameters.
As a possible implementation of this embodiment, the cooling system is used to keep the motor and motor controller within a proper temperature range under all operating conditions.
On the other hand, the automatic working condition testing method for the electric driving system of the new energy automobile provided by the embodiment of the invention comprises the following steps:
setting target vehicle type parameters, setting a simulated road environment and setting a simulated whole vehicle running condition;
carrying out simulation calculation analysis on motor load data and exporting data through a dynamometer control unit;
leading the data into a dynamometer, and controlling and outputting the rotating speed of a motor of the dynamometer by the dynamometer according to the time and the rotating speed in the data table;
sending a torque instruction to the motor controller through CAN communication according to the time and the torque in the data table;
the motor controller controls the motor output torque by the command.
The technical scheme of the embodiment of the invention has the following beneficial effects:
according to the automatic working condition testing system of the new energy electric drive system, on one hand, wiring is visual, a circuit is clear, verification testing and fault analysis are convenient, on the other hand, the electric drive system is easy to disassemble, corresponding updating and replacement can be carried out according to requirements or configurations of different vehicle types, the electric drive system can be reused, and the maintenance cost is low. The automatic working condition testing system has clear lines, is convenient for testing and fault analysis, meets the requirements of different vehicle types, and has low maintenance cost and high accuracy of automatic working condition testing results; and the simulation road environment test work under the automatic working condition is verified and realized, and the simulation road environment test work is closer to the real state.
After target vehicle model parameter setting, simulated road environment setting and simulated whole vehicle running condition setting are carried out, a dynamometer control unit carries out motor load data simulation calculation and leads out data, the data are led into a dynamometer, the dynamometer controls and outputs the rotating speed of the dynamometer according to time and rotating speed in a data table, a torque instruction is sent to a motor controller through CAN communication according to the time and the torque in the data table, the motor controller controls the motor to output the torque through the instruction, and therefore automatic control of the rotating speed and the torque is achieved, and the simulated road environment testing work under the automatic working condition is carried out.
Description of the drawings:
FIG. 1 is a block diagram of an automatic condition testing system for an electric drive system of a new energy vehicle according to an exemplary embodiment;
FIG. 2 is a functional block diagram of an automatic condition testing system for an electric drive system of a new energy vehicle according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method for testing an automatic operating condition of an electric drive system of a new energy vehicle according to an exemplary embodiment.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
Fig. 1 is a structural diagram of an automatic condition testing system of an electric driving system of a new energy vehicle according to an exemplary embodiment. As shown in fig. 1, an automatic working condition testing system of an electric drive system of a new energy vehicle according to an embodiment of the present invention includes a battery simulator, a motor controller, a motor, a dynamometer control unit, a water path circulating cooling system, and a power analyzer; the device comprises a motor controller, a battery simulator, a dynamometer motor, a dynamometer control unit, a cooling system, a power analyzer and a power controller, wherein the motor controller is flexibly connected with the battery simulator, the motor is flexibly connected with the motor controller, the dynamometer motor is mechanically connected with the motor through a transmission shaft and a flange plate, the dynamometer control unit is flexibly connected with the dynamometer motor, the cooling system is respectively flexibly connected with the motor and the motor controller, and the power analyzer is flexibly connected with the motor controller.
As a possible implementation manner of this embodiment, as shown in fig. 2, the battery simulator is used to replace a power battery, simulate an output state of a real power battery and a charging and discharging characteristic of the battery, and is set to be constant in constant voltage, so as to supply power to the new energy electric drive system test system at constant voltage during a test.
The motor controller is used for controlling the motor to work according to the set direction, speed, angle and response time through active work.
The motor is used for converting electric energy into mechanical energy to drive the new energy automobile to run.
The dynamometer motor is used for carrying out motor load data simulation calculation analysis and exporting data through the dynamometer control unit.
And the dynamometer control unit is used for simulating the change of the system load of the driving motor based on the whole vehicle simulation model and the set operation condition. The process of simulating the change of the load of the driving motor system based on the whole vehicle simulation model and the set operation condition is specifically as follows: continuous data of torque, rotating speed, power and temperature rise of the driving motor system under the conditions of shutdown, enabling, driving and braking energy recovery under the condition of time axis specified step length are calculated through simulation, and the data are used as motor load of the driving motor system simulation system and are used for truly reflecting the running state of the driving motor system under different simulated road environments and different simulated whole vehicle working conditions.
And the power analyzer is used for observing the change conditions of the front-end direct current and the rear-end alternating current parameters of the motor controller.
The front end direct current and rear end alternating current parameters of the motor controller comprise current, voltage and power parameters.
The cooling system is used for keeping the motor and the motor controller in a proper temperature range under all working conditions.
The wiring is directly perceived on the one hand, and the circuit is clear, is convenient for verify test and failure analysis, and on the other hand drives system part and demolishs easily, can carry out corresponding renewal replacement according to different motorcycle type demands or configuration to can reuse, the maintenance cost is lower.
The automatic working condition testing system of the embodiment has the advantages of clear line, convenience in testing and fault analysis, capability of meeting the requirements of different vehicle types, low maintenance cost and high accuracy of the automatic working condition testing result; and the simulation road environment test work under the automatic working condition is verified and realized, and the simulation road environment test work is closer to the real state.
FIG. 3 is a flow chart illustrating a method for testing an automatic operating condition of an electric drive system of a new energy vehicle according to an exemplary embodiment. As shown in fig. 3, an automatic working condition testing method for an electric drive system of a new energy vehicle provided by an embodiment of the present invention includes:
setting target vehicle type parameters, setting a simulated road environment and setting a simulated whole vehicle running condition;
carrying out simulation calculation analysis on motor load data and exporting data through a dynamometer control unit;
leading the data into a dynamometer, and controlling and outputting the rotating speed of a motor of the dynamometer by the dynamometer according to the time and the rotating speed in the data table;
sending a torque instruction to the motor controller through CAN communication according to the time and the torque in the data table;
the motor controller controls the motor output torque by the command.
According to the technical scheme of the embodiment, after target vehicle model parameter setting, simulated road environment setting and whole vehicle running condition setting are completed, a dynamometer control unit carries out motor load data simulation calculation and data derivation, the data are led into a dynamometer, the dynamometer controls and outputs the rotating speed of the dynamometer according to the time and the rotating speed in a data table, a torque instruction is sent to a motor controller through CAN communication according to the time and the torque in the data table, the motor controller controls the motor to output the torque through the instruction, and therefore automatic control of the rotating speed and the torque is achieved, and the simulated road environment testing work under the automatic working condition is conducted.
The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements are also considered to be within the scope of the present invention.
Claims (10)
1. An automatic working condition testing system of an electric driving system of a new energy automobile is characterized by comprising a battery simulator, a motor controller, a motor, a dynamometer control unit, a water path circulating cooling system and a power analyzer; the device comprises a motor controller, a battery simulator, a dynamometer motor, a dynamometer control unit, a cooling system, a power analyzer and a power controller, wherein the motor controller is flexibly connected with the battery simulator, the motor is flexibly connected with the motor controller, the dynamometer motor is mechanically connected with the motor through a transmission shaft and a flange plate, the dynamometer control unit is flexibly connected with the dynamometer motor, the cooling system is respectively flexibly connected with the motor and the motor controller, and the power analyzer is flexibly connected with the motor controller.
2. The automatic working condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the battery simulator is used for replacing a power battery, simulating the output state of a real power battery and the charging and discharging characteristics of the battery, is set to be constant in voltage, and supplies power to the constant voltage testing system of the electric driving system of the new energy automobile during testing.
3. The automatic working condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the motor controller is used for controlling the motor to work according to the set direction, speed, angle and response time through active work.
4. The system for automatically testing the working condition of the electric driving system of the new energy automobile as claimed in claim 1, wherein the electric motor is used for converting electric energy into mechanical energy to drive the new energy automobile to run.
5. The automatic working condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the dynamometer motor is used for carrying out motor load data simulation calculation analysis and deriving data through a dynamometer control unit.
6. The automatic working condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the dynamometer control unit is used for simulating the change of the system load of the driving motor based on a whole automobile simulation model and a set running working condition.
7. The automatic working condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the power analyzer is used for observing the change conditions of front-end direct current and rear-end alternating current parameters of the motor controller.
8. The automatic condition testing system of the electric driving system of the new energy automobile as claimed in claim 1, wherein the front end direct current and the rear end alternating current parameters of the motor controller comprise current, voltage and power parameters.
9. The system as claimed in claim 1, wherein the cooling system is configured to maintain the electric machine and the machine controller within a suitable temperature range under all operating conditions.
10. The automatic working condition testing method of the electric driving system of the new energy automobile is characterized by comprising the following steps of:
setting target vehicle type parameters, setting a simulated road environment and setting a simulated whole vehicle running condition;
carrying out simulation calculation analysis on motor load data and exporting data through a dynamometer control unit;
leading the data into a dynamometer, and controlling and outputting the rotating speed of a motor of the dynamometer by the dynamometer according to the time and the rotating speed in the data table;
sending a torque instruction to the motor controller through CAN communication according to the time and the torque in the data table;
the motor controller controls the motor output torque by the command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010127032.3A CN111238832A (en) | 2020-02-27 | 2020-02-27 | Automatic working condition testing system and method for electric driving system of new energy automobile |
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| CN202010127032.3A CN111238832A (en) | 2020-02-27 | 2020-02-27 | Automatic working condition testing system and method for electric driving system of new energy automobile |
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| CN112964985A (en) * | 2021-02-24 | 2021-06-15 | 重庆长安新能源汽车科技有限公司 | Combined test system and method for electric drive system and power battery system |
| CN115113042A (en) * | 2022-05-25 | 2022-09-27 | 中国第一汽车股份有限公司 | Drive motor test framework for new energy vehicle and control method |
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