CN114019934A - Windscreen wiper motor controller HIL test method based on windscreen wiper load model - Google Patents
Windscreen wiper motor controller HIL test method based on windscreen wiper load model Download PDFInfo
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- CN114019934A CN114019934A CN202111085224.3A CN202111085224A CN114019934A CN 114019934 A CN114019934 A CN 114019934A CN 202111085224 A CN202111085224 A CN 202111085224A CN 114019934 A CN114019934 A CN 114019934A
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- Prior art keywords
- wiper motor
- motor controller
- wiper
- windscreen wiper
- load model
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention discloses a windscreen wiper motor controller HIL test method based on a windscreen wiper load model, which comprises the steps of building a test system comprising an upper computer, a simulation cabinet with a windscreen wiper load model and a windscreen wiper motor controller; the simulation cabinet feeds back corresponding characterization information of the working state of the wiper motor to the upper computer according to the control information sent by the wiper motor controller; and the upper computer obtains a test result of the wiper motor controller according to the control information and the wiper motor working state representation information. By applying the windscreen wiper motor controller HIL testing method based on the windscreen wiper load model, the testing of the windscreen wiper motor controller can be carried out by operating the load model of the windscreen wiper motor in the simulation cabinet, a load rack does not need to be built in a laboratory, the cost is reduced, the testing efficiency is improved, and the convenience and the safety are improved.
Description
Technical Field
The invention relates to a testing method, in particular to a windscreen wiper motor controller HIL testing method based on a windscreen wiper load model.
Background
The wiper system is a standard assembly of all vehicles, and comprises a wiper motor and a wiper motor controller, wherein the wiper motor is controlled by the wiper motor controller to drive a wiper blade to reciprocate so as to complete the scraping and cleaning of rainwater on a vehicle window.
In order to improve the use experience of a wide range of users and ensure the normal use of the wiper system, a Hardware-in-Loop test (HIL) is required to be started in the development stage of the wiper motor controller. The hardware-in-loop test can simulate the working environment of the wiper system in a laboratory environment, and performs a function test on the wiper system to verify the realization condition of the function.
Because the hardware in-loop test has the advantages of low simulation cost, high efficiency and high reliability, the hardware in-loop test becomes an important loop in the automobile development process in recent years. However, the hardware-in-the-loop test of the wiper system has the following disadvantages that firstly, the placement of the wiper assembly is greatly limited by the rack, so that the fixing position is very inconvenient; and secondly, when the function of the wiper is tested, certain danger exists on the site.
Disclosure of Invention
The invention provides a wiper motor controller HIL test method based on a wiper load model, aiming at the defects of the prior art.
In the windscreen wiper motor controller HIL testing method based on the windscreen wiper load model, a testing system comprising an upper computer, a simulation cabinet with the windscreen wiper load model and a windscreen wiper motor controller is built;
the simulation cabinet feeds back corresponding characterization information of the working state of the wiper motor to the upper computer according to the control information sent by the wiper motor controller;
and the upper computer obtains a test result of the wiper motor controller according to the control information and the wiper motor working state representation information.
In the windscreen wiper motor controller HIL testing method based on the windscreen wiper load model, the upper computer is connected with the simulation cabinet through a network cable, and the simulation cabinet is electrically connected with each electrical port on the windscreen wiper motor controller through a lead.
In the method for testing the HIL of the wiper motor controller based on the wiper load model, the control information sent by the wiper motor controller comprises a high-speed driving signal of the wiper motor, a low-speed driving signal of the wiper motor, an intermittent driving signal of the wiper motor and a return signal of the wiper motor.
In the method for testing the HIL of the wiper motor controller based on the wiper load model, the characterization information of the working state of the wiper motor comprises the position information of the wiper motor and the fault information of the wiper motor.
By applying the windscreen wiper motor controller HIL testing method based on the windscreen wiper load model, the testing of the windscreen wiper motor controller can be carried out by operating the load model of the windscreen wiper motor in the simulation cabinet, a load rack does not need to be built in a laboratory, the cost is reduced, the testing efficiency is improved, and the convenience and the safety are improved.
Drawings
Fig. 1 is a schematic diagram of a hardware structure implemented by the wiper motor controller HIL testing method based on the wiper load model according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The invention discloses a wiper motor controller HIL testing method based on a wiper load model, which is realized based on a hardware structure shown in figure 1. Namely, the hardware structure comprises a test system which is built by an upper computer, a simulation cabinet and a wiper motor controller.
The upper computer is a user operation unit and can receive test feedback information of the simulation cabinet and analyze the feedback information according to a preset rule to obtain a test result. The simulation cabinet selects a proper simulation board card according to the electrical port information and the functional requirements of the wiper motor controller and the load working characteristics of the wiper motor to construct a wiper load model, and the simulation cabinet is connected with the upper computer through a network cable. The simulation cabinet is also electrically connected with each electric port on the wiper motor controller through a lead.
In the method for testing the wiper motor controller HIL based on the wiper load model, the simulation cabinet feeds back corresponding working state characterization information of the wiper motor to the upper computer according to control information sent by the wiper motor controller, and the upper computer obtains a test result of the wiper motor controller according to the control information and the working state characterization information of the wiper motor.
Specifically, the control information sent by the wiper motor controller comprises a wiper motor high-speed driving signal, a wiper motor low-speed driving signal, a wiper motor intermittent driving signal and a wiper motor return signal. And the characterization information of the working state of the wiper motor comprises the position information of the wiper motor and the fault information of the wiper motor. That is to say, under the condition that the wiper motor controller sends out signals such as a wiper motor high-speed driving signal, a wiper motor low-speed driving signal, a wiper motor intermittent driving signal, a wiper motor return signal and the like, the simulation cabinet serves as a load simulation device for simulating the wiper motor, and the simulation cabinet should respond to various control signals sent by the wiper motor controller so as to test and verify whether the performance of the wiper motor controller meets expectations or not. Then, the wiper motor position information in the wiper motor working state representation information fed back by the simulation cabinet indicates the position of the rotating shaft of the wiper motor at the moment, and can be used for verifying whether a wiper motor high-speed driving signal, a wiper motor low-speed driving signal, a wiper motor intermittent driving signal and a wiper motor return signal sent by the wiper motor controller are effective or not, so that whether the function of the wiper motor controller is normal or not is tested.
By applying the windscreen wiper motor controller HIL testing method based on the windscreen wiper load model, the testing of the windscreen wiper motor controller can be carried out by operating the load model of the windscreen wiper motor in the simulation cabinet, a load rack does not need to be built in a laboratory, the cost is reduced, the testing efficiency is improved, and the convenience and the safety are improved.
The specific example of the wiper motor controller HIL test based on the wiper load model applied in the invention is as follows:
powering on the simulation cabinet;
setting an initial state on the simulation cabinet, and setting an on/off switch signal of the wiper motor running at a low speed to be effective;
the wiper motor controller judges whether the on/off condition of the wiper motor in low-speed operation is met or not according to the initial state and the switching instruction;
if the on/off condition of the wiper motor in low-speed operation is met, judging whether the driving signal of the wiper motor in low-speed operation is effective or not; if the test result is invalid, the test of the wiper motor controller fails, and the test result is recorded; if the position of the wiper motor is effective, simulating the position of the wiper motor according to a low-speed operation driving signal experiment of the wiper motor;
the upper computer collects instruction signals of the wiper motor controller, judges whether the wiper motor controller passes the test according to the simulated state of the wiper motor, such as faults or the position of the wiper motor, and records test data and test results;
and (5) recovering the initial state, powering off the test bed, and completing the test.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. A windscreen wiper motor controller HIL test method based on a windscreen wiper load model is characterized in that a test system comprising an upper computer, a simulation cabinet with the windscreen wiper load model and a windscreen wiper motor controller is built;
the simulation cabinet feeds back corresponding characterization information of the working state of the wiper motor to the upper computer according to the control information sent by the wiper motor controller;
and the upper computer obtains a test result of the wiper motor controller according to the control information and the wiper motor working state representation information.
2. The wiper load model-based HIL testing method of a wiper motor controller according to claim 1, wherein the upper computer is connected to the simulation cabinet through a network cable, and the simulation cabinet is electrically connected to each electrical port on the wiper motor controller through a wire.
3. The HIL testing method of a wiper motor controller based on a wiper load model according to claim 1, wherein the control information sent by the wiper motor controller includes a wiper motor high-speed driving signal, a wiper motor low-speed driving signal, a wiper motor intermittent driving signal, and a wiper motor return signal.
4. The wiper load model-based wiper motor controller HIL testing method according to claim 3, wherein the wiper motor operating state characterization information comprises wiper motor position information and wiper motor fault information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085224.3A CN114019934A (en) | 2021-09-16 | 2021-09-16 | Windscreen wiper motor controller HIL test method based on windscreen wiper load model |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085224.3A CN114019934A (en) | 2021-09-16 | 2021-09-16 | Windscreen wiper motor controller HIL test method based on windscreen wiper load model |
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| Publication Number | Publication Date |
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| CN114019934A true CN114019934A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111085224.3A Pending CN114019934A (en) | 2021-09-16 | 2021-09-16 | Windscreen wiper motor controller HIL test method based on windscreen wiper load model |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754876A (en) * | 2023-07-07 | 2023-09-15 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
| WO2024044911A1 (en) * | 2022-08-29 | 2024-03-07 | 华为技术有限公司 | Test device for wiper system |
-
2021
- 2021-09-16 CN CN202111085224.3A patent/CN114019934A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024044911A1 (en) * | 2022-08-29 | 2024-03-07 | 华为技术有限公司 | Test device for wiper system |
| CN116754876A (en) * | 2023-07-07 | 2023-09-15 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
| CN116754876B (en) * | 2023-07-07 | 2024-03-19 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
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