CN110658454A

CN110658454A - Brushless direct current motor integrated test system

Info

Publication number: CN110658454A
Application number: CN201910926380.4A
Authority: CN
Inventors: 任华林
Original assignee: Gefu Automotive Technology (zhejiang) Co Ltd
Current assignee: Gefu Automotive Technology (zhejiang) Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-01-07

Abstract

The invention discloses a brushless direct current motor integrated test system which comprises a test bench, an ECU to be tested and HIL equipment, wherein the test bench comprises a test framework, a brushless direct current motor, an optical axis, a torque module and a hysteresis brake, the brushless direct current motor is connected with the ECU to be tested, and the HIL equipment is simultaneously connected with the test bench and the ECU to be tested. The brushless direct current motor integrated test system can meet the integrated test requirements of the brushless direct current motor for the automobile, and has the advantages of being fast in integration, comprehensive and controllable in signal and capable of supporting simultaneous testing of a plurality of brushless direct current motors.

Description

Brushless direct current motor integrated test system

Technical Field

The invention belongs to the technical field of motor testing, and particularly relates to an integrated testing system for a brushless direct current motor.

Background

With the improvement of living standards of people, the pursuit of high performance, high reliability, high comfort and safety of automobiles is higher and higher, and the application of brushless direct current motors in these aspects has various advantages, and the number of motors on automobiles is continuously increased, which brings greater challenges to the integrated test of the motors. The prior art can not meet the requirements of the integrated test of the brushless direct current motor for the automobile and can not support the simultaneous test of a plurality of brushless direct current motors.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an integrated test system of a brushless direct current motor, and aims to meet the integrated test requirements of the brushless direct current motor for an automobile.

In order to achieve the purpose, the invention adopts the technical scheme that: brushless DC motor integrated test system, including test bench, quilt survey ECU and HIL equipment, the test bench includes test skeleton, brushless DC motor, optical axis, moment of torsion module and hysteresis brake, and brushless DC motor is connected with quilt survey ECU, and test bench and quilt survey ECU are connected to HIL equipment simultaneously.

Brushless DC motor through first shaft coupling with the optical axis is connected, the optical axis through the second shaft coupling with the moment of torsion module is connected, the moment of torsion module through the third shaft coupling with hysteresis brake connects.

The test bench further comprises a speed measurement sensor for detecting the rotating speed and the direction of the brushless direct current motor.

And the HIL equipment is connected with the tested ECU through a CAN bus module, and the tested ECU drives the brushless direct current motor.

The brushless direct current motor is provided in plurality.

The brushless direct current integrated motor test system can meet the integrated test requirements of the brushless direct current motor for the automobile, and has the advantages of fast integration, comprehensive and controllable signals and support of simultaneous test of a plurality of brushless direct current motors.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a schematic diagram of a single motor structure of the brushless DC motor integrated test system according to the present invention;

FIG. 2 is a schematic diagram of a multi-motor structure of the brushless DC motor integrated test system according to the present invention;

labeled as:

1. testing the framework; 2. an HIL device; 3. a tested ECU; 4. a brushless DC motor; 5. a first coupling; 6. an optical axis; 7. a second coupling; 8. a torque module; 9. a third coupling; 10. a hysteresis brake; 11. a speed measuring sensor; 12. and a bearing seat.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.

As shown in fig. 1 and 2, the present invention provides a brushless dc motor test system,

brushless DC motor integrated test system, including the test bench, by survey ECU (Electronic Control Unit) 3 and HIL (Hardware is in the return circuit) equipment, the test bench includes test skeleton 1, brushless DC motor 4, optical axis 6, torque module 8 and hysteresis brake 10, brushless DC motor 4 is connected with by survey ECU3, HIL equipment 2 is connected the test bench simultaneously and is surveyed the ECU, brushless DC motor 4, optical axis 6, torque module 8 and hysteresis brake 10 are for connecting gradually.

Specifically, as shown in fig. 1 and 2, the test frame 1 is made of a standard aluminum material (e.g., 2020), the brushless dc motor 4, the torque module 8 and the hysteresis brake 10 are mounted on the test frame 1, and the optical axis 6 is mounted on the test frame 1 through the bearing housing 12. The brushless direct current motor 4 is connected with the first coupler 5 after being aligned with the optical axis 6, the second coupler 7 is connected after the optical axis 6 is aligned with the torque module 8, and the third coupler 9 is connected after the torque module 8 is aligned with the hysteresis brake 10.

As shown in fig. 1 and 2, the testing stand further includes a speed sensor 11 for detecting the rotation speed of the brushless dc motor 4, a gear plate is disposed on the optical axis 6, the gear plate and the optical axis 6 are coaxially and fixedly connected, the gear plate is matched with the speed sensor 11, and the speed sensor 11, the torque module 8, the hysteresis brake 10 and the HIL device 2 are electrically connected. The power that brushless DC motor 4 produced transmits to optical axis 6, drives optical axis 6 rotatory, and optical axis 6 passes through shaft coupling joint moment of torsion module 8 to drive hysteresis brake 10 operation. The gear disc is driven by the optical axis 6 to change the magnetic field of the tacho sensor 11 during rotation, so as to generate corresponding pulse, (forward and reverse (pulse width length), velocity (pulse frequency)) signals, and transmit the signals to the HIL device 2.

As shown in fig. 1 and 2, the tested ECU3 is electrically connected with the brushless dc motor 4, and the HIL device 2 is connected with the tested ECU3 through the CAN bus module to control the whole system; the tested ECU3 drives the brushless dc motor 4 and the test bench transmits real signals to the HIL device 2, thereby implementing the entire control loop. The signals transmitted by the test bench to the HIL device 2 include PWM signals, torque signals, and phase and bus current level signals of the brushless dc motor 4, etc., for the actual speed and direction of rotation.

The test steps of the brushless direct current motor integrated test system are as follows:

1. starting control software CANoe of HIL equipment, and importing A2L file information of the tested ECU into a VT test system of the CANoe software;

2. developing a test case to realize automatic test:

a. the magnitude of the variable is controlled through an XCP protocol in CANoe software, so that the operation of the brushless direct current motor 4 is controlled;

the CANoe changes the signal to control the constant current source to supply power to control the hysteresis brake and generate corresponding load torque of the brushless direct current motor;

c, the CANoe software compares and calculates the real signals such as phase current, rotating speed and direction with the signals collected by the tested ECU;

3. and automatically testing, generating and outputting a test report.

As shown in fig. 1, one brushless dc motor 4 is provided for the single motor test.

As shown in fig. 2, the brushless dc motor 4 is provided in plurality for the multi-motor test.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. Brushless DC motor integrated test system, its characterized in that: including test bench, quilt survey ECU and HIL equipment, the test bench includes test skeleton, brushless DC motor, optical axis, moment of torsion module and hysteresis brake, and brushless DC motor is connected with quilt survey ECU, and test bench and quilt survey ECU are connected to HIL equipment simultaneously.

2. The integrated testing system of brushless dc motor according to claim 1, wherein: brushless DC motor through first shaft coupling with the optical axis is connected, the optical axis through the second shaft coupling with the moment of torsion module is connected, the moment of torsion module through the third shaft coupling with hysteresis brake connects.

3. The brushless dc motor integrated test system according to claim 1 or 2, wherein: the test bench further comprises a speed measurement sensor for detecting the rotating speed and the direction of the brushless direct current motor.

4. The brushless dc motor integrated test system according to any one of claims 1 to 3, wherein: and the HIL equipment is connected with the tested ECU through a CAN bus module, and the tested ECU drives the brushless direct current motor.

5. The brushless dc motor test system according to any one of claims 1 to 4, wherein: the brushless direct current motor is provided in plurality.