3results about How to "Timely regulation" patented technology

The utility model belongs to the technical field of automobile shock absorber, specifically relates to a linear motor shock absorber, which comprises an electromagnetic coil, a permanent magnet, a core shaft and a sleeve outside the electromagnetic coil, one of the electromagnetic coil and the permanent magnet is connected on the outer side wall of the core shaft, and the other is arranged on the inner side wall of the sleeve, further comprises a displacement sensor, the upper end of the sleeve is equipped with a guide sleeve, the lower end of the sleeve is equipped with a lower limit plate, the core shaft is located inside the guide sleeve and protrudes upwards, a first sliding bearing and a sealing ring located on the top surface of the first sliding bearing are arranged between the core shaft and the guide sleeve, the first sliding bearing and the sealing ring are fixedly arranged on the inner side wall of the guide sleeve, and the first sliding bearing and the sealing ring are in sealed contact with the outer side wall of the core shaft and axially slide. The electromagnetic coil and the permanent magnet are always located in the sleeve, the sealing ring and the core shaft are matched to seal the through hole on the guide sleeve, impurities are prevented from entering the sleeve to damage the electromagnetic coil and the permanent magnet, and the working reliability of the linear motor shock absorber is improved.

This invention discloses a reliability testing method and system for silicon carbide MOSFETs. The reliability testing method for silicon carbide MOSFETs includes the following steps: preparation, connecting the device under test (DUT) to the system; initial measurement, measuring initial electrical parameters; cyclic testing, sequentially performing a heating step, a testing step, and a cooling step; the heating step involves raising the junction temperature of the DUT to a target junction temperature and maintaining it stable under the combined effects of ambient temperature and the self-heating of the DUT; the testing step involves real-time monitoring of high-temperature electrical parameters; the cooling step involves measuring intermediate electrical parameters; and the calculation involves calculating the estimated lifetime of the DUT at the actual junction temperature. The reliability testing method for silicon carbide MOSFETs of this invention can detect the reliability of the high-temperature conduction state of silicon carbide MOSFETs.

The application discloses a kind of civil aviation control system sub-security state hawk-dove game regulation methods, step 1) collection air traffic control system operating data;Step 2) according to the information obtained in step 1) establishes hawk-dove game model;Step 3) according to system operating data, the key variable in the above model is valued;Step 4) calculate risk disturbance and fitness take hawk strategy Nash equilibrium probability;Step 5) calculate the probability that the control system changes to different states, and provide corresponding regulation method.The civil aviation control system sub-security state regulation method provided by the application is an objective evaluation method in the field of air traffic control safety, which can quantitatively analyze the operation trend of the control system in the sub-security state, move the risk control threshold forward, avoid the occurrence of unsafe events, and realize the transformation of the control system from the sub-security state to the security state.