Motorcycle shock absorber testing and control system
A shock absorber, motorcycle technology, applied in the direction of vehicle suspension/shock absorber mechanism testing, etc., can solve problems such as low accuracy, affecting driver comfort, and inability to contribute to motorcycle comfort evaluation, to eliminate accidental factors The effect of interference, avoidance of waste, reasonable design and optimization
Inactive Publication Date: 2017-04-26
CHONGQING UNIV
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Problems solved by technology
Its damping characteristics still adopt the test method of sinusoidal excitation, which does not directly reflect the acceleration characteristics of shock absorber damping, and people are sensitive to acceleration, and the acceleration transmitted through the shock absorber after the wheel is impacted directly affects the driver's comfort
[0004] At present, the detection of the shock absorber is mainly by applying pressure to the shock absorber, and then detecting the degree of pressure resistance; but such detection is based on the detection of the motorcycle, and its detection accuracy is low, and it cannot affect the overall comfort of the motorcycle. Contribute to Sexual Judgment
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[0025] Example: see figure 1 , a motorcycle shock absorber measurement and control system, including a detection device and an evaluation system, the detection device includes a base plate 1, a test frame 2, a motorcycle wheel 3, a reduction motor 4, a test cam 5, a cam bracket 6 and a measured shock absorber device7. Described test frame 2 is vertically installed on the base plate 1, and wheel shaft is installed on motorcycle wheel 3, and the two ends of this wheel shaft are fixedly connected with test frame 2 by a measured shock absorber 7 respectively, and measured shock absorber 7 The angle between the axis line of the vehicle and the vertical plane is consistent with the angle between the shock absorber and the vertical plane in the real vehicle. An accelerometer is provided on the shock absorber 7 under test, and the moving acceleration of the shock absorber 7 under test during compression and recovery can be detected through the accelerometer.
[0026] Described reduc...
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The invention discloses a motorcycle shock absorber testing and control system which comprises a testing device and an evaluation system. The testing device comprises a base board, a testing frame, a motorcycle wheel, a speed reduction motor, a testing cam, a cam bracket and a tested shock absorber. The tested shock absorber is provided with an accelerometer through which motion acceleration in a compressed process and a restoring process of the tested shock absorber can be detected. The accelerometer is connected with the evaluation system. After the evaluation system acquires an acceleration signal, the evaluation system performs the following processing: (1) performing Fourier transform of a vibration signal; (2), obtaining an average weighted acceleration; and (3), obtaining feeling evaluation of the shock absorber to human body comfort through the average weighted acceleration. The motorcycle shock absorber testing and control system can simulate the actual working condition of a motorcycle, thereby performing online testing on the shock absorber and performing evaluation on the shock absorber to human body comfort.
Description
technical field [0001] The invention relates to the technical field of motorcycle component detection, in particular to a motorcycle shock absorber measurement and control system. Background technique [0002] The shock absorber is an important component of the motorcycle, and the shock absorption characteristics of the shock absorber directly affect the driving comfort and safety. The damping characteristics of the shock absorber are composed of compression damping and restoration damping, among which the restoration damping characteristic plays a key role in the comfort of motorcycles when driving on uneven roads. [0003] For a long time, most of the shock absorber industry at home and abroad have used the dynamometer characteristics (relationship between force and displacement) and velocity characteristics (relationship between force and speed) measured by the sinusoidal excitation test device after removing the spring of a single shock absorber. Check the damping chara...
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IPC IPC(8): G01M17/04
CPCG01M17/04
Inventor 罗霄唐义丰刘岳刘延琦袁欣龙建
Owner CHONGQING UNIV