3results about How to "Reduce incentives" patented technology

This invention provides a method and system for reconstructing the full-band electrochemical impedance spectroscopy (EIS) of lithium-ion batteries. The method includes: performing distributed relaxation time (DRT) analysis on each group of battery EIS samples to obtain DRT spectra; aligning the DRT spectra on the logarithmic time constant axis and performing ensemble statistics, selecting peaks and / or valleys that stably appear under multiple operating conditions based on statistical stability, and mapping them to obtain a set of conditionally invariant characteristic frequencies; selecting characteristic frequency points that satisfy the sampling budget from the set of conditionally invariant characteristic frequencies, and performing sparse EIS measurements on the target battery at these characteristic frequency points to obtain sparse complex impedance inputs; generating a full-band complex impedance sequence based on the sparse complex impedance inputs using an autoregressive reconstruction model; and performing battery state estimation and fault diagnosis based on the full-band complex impedance sequence. This invention significantly improves the continuity of the spectral shape and the generalization ability across operating conditions under sparse sampling conditions, while reducing the full-spectrum testing time and sampling burden.

The application discloses a kind of high-temperature-resistant, acid and alkali-resistant acrylic pressure-sensitive adhesive and preparation method thereof, belong to pressure-sensitive adhesive technical field.The pressure-sensitive adhesive is made of 50-80 parts by weight of acrylic ester copolymer, 5-15 parts of 10-30nm SiO2 Nanoparticle, 1-5 parts of composite dispersant, 10-30 parts of ethyl acetate, 0.5-1.5 parts of crosslinking agent and 1-4 parts of silane coupling agent KH550.The preparation is first carried out by ultrasonic dispersion with coupling agent pretreatment, then composite dispersing liquid is prepared by adding composite dispersant, then it is fused with acrylic ester copolymer, and finally the finished product is obtained by adding crosslinking agent reaction.The application solves the problem of nanoparticle agglomeration by composite dispersion system, strengthens the interface combination by using coupling agent, balances the cohesive force and adhesive force by crosslinking agent, the product is resistant to high temperature up to 180 DEG C, after acid and alkali immersion, there is little residual glue, and it retains the excellent temperature bonding performance, suitable for many high-end scenarios.

The application relates to the technical field of dual-motor hybrid vehicles, in particular to an engine control method and device for a dual-motor hybrid vehicle, a vehicle and a medium, wherein the method comprises the following steps: identifying a current starting stage of an engine of the dual-motor hybrid vehicle; adjusting cylinder pressure of the engine according to the current starting stage, wherein the cylinder pressure of the engine gradually increases with the increase of the current starting stage; and controlling the starting of the engine according to the cylinder pressure of the engine. Thus, the problems that, in the related art, the dual-motor hybrid vehicle is difficult to finely control the combustion cylinder pressure, the starting vibration abnormal sound is caused in the starting process of the engine, and the user experience is poor and the like are solved.