Portable dynamic detection method and system for braking performance of automobile wheels
A dynamic detection and portable technology, applied in wheel testing and other directions, can solve the problems of inability to measure the magnitude of braking force and balance state, inability to comprehensively evaluate the braking performance of motor vehicles, and unfavorable prediction and evaluation of vehicles, so as to ensure the braking efficiency of vehicles. , Fast and convenient installation and disassembly, reducing the effect of traffic accidents
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[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the embodiments and accompanying drawings.
[0030] like figure 1 As shown, it is the flow of the method for dynamic detection of the braking performance of the portable vehicle wheel, and the method includes the following steps:
[0031] Step 101 senses the three-dimensional acceleration of the wheel through the three-axis accelerometer of the wheel test module, and senses the brake detection signal through the pedal force meter;
[0032] Step 102 utilizes the output signal of the wheel tangential acceleration sensor, and extracts the characteristic quantity of the wheel signal through wavelet transform noise reduction processing and short-time Fourier transform operation to obtain the wheel rotation period, rotation frequency and wheel angular velocity;
[0033] Step 103 uses the wheel ...
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