58results about How to "Improve the level of research and development" patented technology

The invention discloses a method for acquiring a vehicle typical working condition, and the method is used for efficiently and accurately acquiring the vehicle typical working condition. The method comprises the following steps of: collecting GPS (Global Positioning System) information and operating characteristic data in a vehicle running process; converting longitude and latitude data in a vehicle running road section into road information of the vehicle running road section according to the received GPS information; receiving and storing the vehicle information, the road information and the corresponding operating characteristic data; sectioning the operating characteristic data which are continuous in time and consistent in vehicle information and road information; establishing an average vehicle speed spectrogram, subsection vehicle speed spectrograms, an average rotation speed spectrogram, subsection rotation speed spectrograms, an average torque spectrogram and subsection torque spectrograms under the conditions of different vehicle information and different road information; and determining the typical working condition corresponding to the vehicle information and the road information. The invention further discloses a system for acquiring the vehicle typical working condition.

The invention discloses a driving property test device for a hinge line of a solar wing. The device comprises a base, a shift rod, a rotary bracket a, a sensor seat, a cable fixing seat, a fixed bracket, a double-pulley assembly, a loading heavy block, a vertical column assembly, a fixed seat, a force measuring sensor, a steel wire rope and a movable pulley assembly, wherein the interior of the base is provided with a worm and gear speed reducer, the vertical column assembly is vertically and fixedly arranged at the top of the base, and the double-pulley assembly is fixedly arranged on the vertical column assembly. The test device has the advantages that the unfolding and folding processes of the solar wing can be simulated; the rotation angle and the torque parameter can be tested in real time, and the accurate and reliable test data, such as driving torque, friction drag torque and rigidity, can be obtained; and the reliability and the development level of space application equipment are improved.

The invention discloses a preparation process of raw bamboo fiber denim fabric, the preparation process includes the following specific steps: (1) preparation of warp yarn; (2) preparation of weft yarn: (3) combining the above steps ( 1) Weaving the prepared warp yarn and the weft yarn prepared in step (2) through a loom to make denim gray fabric; Pre-drying, pre-shrinking, and inspection processes are used to prepare bamboo fiber denim textile fabrics. Through technological innovation, the present invention enables most thick, short, and poorly made bamboo fibers to be applied to textile fabrics, which not only solves the shortcomings and shortcomings that most bamboo fiber materials are difficult to apply, but also makes textile The obtained denim fabric has the natural and long-lasting special effects of bamboo fiber, which improves the research and development level of textile fabrics.