A vehicle ridge impact evaluation system and vehicle ridge impact evaluation method
A technology for evaluating systems and vehicles, applied in the field of vehicle experience, can solve problems such as modal distribution restrictions
Active Publication Date: 2021-01-15
北京长城华冠汽车技术开发有限公司
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Due to the limitation of the modal distribution of each system of the vehicle, this test method is often difficult to be consistent with the customer's experience in actual use.
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[0038] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0039] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more o...
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The invention relates to a vehicle obstacle-passing impact evaluation system and a vehicle obstacle-passing impact evaluation method. The system comprises a vehicle acceleration sensor, a low-pass filter, a time domain windowing module, an FFT (Fast Fourier Transformation) module, an auto-power spectrum calculation module, a vehicle obstacle-passing impact parameter solving module and a vehicle obstacle-passing impact parameter evaluation module, wherein the vehicle acceleration sensor is used for collecting an acceleration signal of a preset vehicle position; the low-pass filter is used for filtering the acceleration signal; the time domain windowing module is used for windowing the filtered acceleration signal; the FFT module is used for converting the windowed acceleration signal into an acceleration signal frequency spectrum; the auto-power spectrum calculation module is used for solving an acceleration signal auto-power spectrum according to the acceleration signal frequency spectrum; the vehicle obstacle-passing impact parameter solving module is used for performing root-mean-square solving on the acceleration signal auto-power spectrum to obtain vehicle obstacle-passing impact parameters; and the vehicle obstacle-passing impact parameter evaluation module is used for comparing the vehicle obstacle-passing impact parameters with a vehicle obstacle-passing impact parameterthreshold range to generate a vehicle obstacle-passing impact parameter evaluation report. Through the system and the method, the vehicle obstacle-passing impact parameters are acquired, and the realresponse of a passenger in a vehicle can be reflected.
Description
technical field [0001] The invention relates to the technical field of vehicle experience, in particular to a vehicle ridge-crossing impact evaluation system and a vehicle ridge-crossing impact evaluation method. Background technique [0002] When the car passes through speed bumps and potholes on the road, the passengers in the car will feel obvious vibration shock. How to measure and evaluate this kind of impact has always been the bottleneck problem that restricts the developers of major OEMs. The main reason involved is how to integrate the subjective human body feelings with the objective test data during the impact process, so that Objective data can fully reflect the feelings of passengers during the subjective impact process. [0003] The traditional hurdle-crossing impact test is mainly performed as a vehicle acceleration vibration test. Due to the limitation of the modal distribution of each system of the vehicle, this test method is often difficult to be consist...
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IPC IPC(8): G01M17/06
CPCG01M17/06
Inventor 谈洋
Owner 北京长城华冠汽车技术开发有限公司