Motion posture acquisition device for commercial vehicle cab
A collection device and motion attitude technology, applied in transportation and packaging, the upper structure of trucks, vehicle components, etc., can solve problems such as large integral time lag, large signal phase difference, and high filter order
Active Publication Date: 2021-06-04
DONGFENG COMML VEHICLE CO LTD
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Problems solved by technology
[0005] The cab vibration signal has the characteristics of low frequency and large amplitude. If it is directly integrated, the zero drift of the sensor device and the low frequency interference of the signal will make the integrated signal appear trend items, which will eventually lead to integration saturation and affect the authenticity of the signal. degree; if a filter is used to process the signal and then integrate, the too low cut-off frequency will make the order of the filter very high and will bring a large integration time lag, resulting in a large phase difference in the integrated signal
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[0030] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0031] The embodiment of the present application provides a motion attitude acquisition device for the cab of a commercial vehicle, which can solve the problem of using three acceleration sensors on the upper suspension bracket and the lower suspension bracket in the related art, and directly perform integral processing on them. The rel...
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The invention relates to a motion posture acquisition device for a commercial vehicle cab, and belongs to the technical field of automobile damping suspensions. The device comprises an acceleration sensor for detecting an acceleration signal of the cab; a displacement sensor which is used for detecting a displacement signal of the lower suspension bracket; and a controller which is used for acquiring the acceleration signal and performing integral operation to obtain the speed of the cab. The controller obtains the displacement signal and performs differential operation to obtain the speed of the lower suspension bracket; the controller obtains a speed difference according to the difference between the speed of the cab and the speed of the lower suspension support, converts the speed difference into an electric signal and outputs the electric signal to an electric control vibration reduction system of the cab. The controller can directly obtain the displacement signal of the lower suspension support to carry out differential operation to obtain the speed of the lower suspension support. The controller obtains the acceleration signal of the cab and performs integral operation to obtain the speed of the cab. Control delay caused by signal distortion due to the fact that an acceleration sensor is independently used and an integral algorithm is used is avoided.
Description
technical field [0001] The present application relates to the technical field of automobile vibration damping suspension, in particular to a motion posture acquisition device for a commercial vehicle cab. Background technique [0002] The movement posture and vibration reduction of the commercial vehicle cab are mainly controlled and guaranteed by the cab suspension. The basic structure of the cab suspension is to use four support points for front and rear suspension, and use a shock absorber for vibration reduction. The basic principle of the shock absorber is that the greater the relative speed of the suspended upper support and the lower suspended support, the greater the reaction force provided by the shock absorber, so as to absorb energy and exhaust vibration. [0003] At present, in order to improve the comfort and stability of the whole vehicle, the adjustable damping shock absorber is used to absorb the energy of large vibration and high frequency more quickly, and ...
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Login to View More IPC IPC(8): B62D33/06
CPCB62D33/0604
Inventor 毛宏泰魏铭郝守海陈玲莉李廷才代明辉安晨然
Owner DONGFENG COMML VEHICLE CO LTD