MGU brake noise detection device and control system
A technology for noise detection and brake calipers, which can be used in measurement devices, vehicle testing, machine/structural component testing, etc., and can solve problems such as inaccurate test results.
Pending Publication Date: 2021-06-11
成都辰启电子科技有限公司
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Problems solved by technology
[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a MGU braking noise detection device, which can solve the problems of inaccurate test results in the prior art due to the influence of external environmental noise.
[0004] The second object of the present invention is to provide a MGU braking noise detection and control system, which can solve the problems of inaccurate test results in the prior art due to the influence of external environmental noise
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[0031] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .
[0032] The invention provides a MGU braking noise detection device, by connecting the MGU assembly with the brake caliper, the fast switching of the positive and negative rotation of the motor is controlled, so that the MGU assembly generates vibration during the braking process, and the three-axis acceleration The sensor detects the vibration generated by the MGU assembly in the braking process in real time to calculate the noise of the MGU assembly, and judges whether the calculated noise is within the preset requirements, and then realizes the noise detection of the MGU motor. The detection structure of the invention is accurate and will not be dist...
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The invention discloses an MGU brake noise detection device and a control system. The detection device comprises a fixing support, a motor mounting frame, an MGU motor and a three-axis acceleration sensor. The fixing support comprises a first fixing plate, a supporting column and a first mounting plate. The motor mounting frame comprises a second fixing plate, a mounting column and a second mounting plate. The second fixing plate is fixed on the first fixing plate; the second fixing plate and the second mounting plate are arranged at the two ends of the mounting column respectively, and the brake calipers are arranged between the second fixing plate and the second mounting plate; the MGU motor is arranged on the second mounting plate, and an output shaft of the MGU motor is inserted into a brake cylinder of the brake calipers through a first pin hole in the second mounting plate; and the three-axis acceleration sensor makes contact with the MGU motor and is used for generating an electric signal when the MGU motor brakes and sending the electric signal to an external controller in real time, and therefore the external controller detects noise of the MGU motor according to the collected electric signal. The device is simple in structure and accurate in measurement result.
Description
technical field [0001] The invention relates to the field of brake system detection, in particular to an MGU brake noise detection device and a control system. Background technique [0002] The MGU (Motor Generator Unit) assembly is the core drive component of the electronic parking brake system, and its performance has a great influence on the braking system of the car. Generally speaking, during the braking process of a car, the MGU is composed of a gear set, so it will generate a certain amount of noise during the process of generating torque. When the noise is too large, it will affect the NVH test of the whole vehicle. Therefore, there is an urgent need for a detection method for the noise of the MGU assembly to detect whether the noise of the MGU assembly is within the required range. In the existing test equipment, the servo motor is generally used to simulate the torque to realize the rotational torque of the MGU assembly and the noise sensor is used to detect the b...
Claims
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IPC IPC(8): G01M17/007G01H17/00
CPCG01H17/00G01M17/007
Inventor 刘搏阳
Owner 成都辰启电子科技有限公司