3results about How to "Increase choice flexibility" patented technology

The invention relates to the technical field of power supplies, and provides a power supply switching circuit. The power supply switching circuit comprises a state detection module, a state clamping module and an output control module. The state detection module is used for detecting power supply access states of the first power input end and the second power input end respectively; the state clamping module generates a first output control signal and a second output control signal according to the power supply sequence; the output control module is connected with the state clamping module, is connected with an external load, responds to the first output control signal, controls the connection state of the first power input end and the power supply output end, responds to the second output control signal, controls the connection state of the second power input end and the power supply output end, and supplies power to the external load. According to the power supply switching circuit, the power supply for supplying power to the load can be determined according to the power supply access sequence of the power supplies, so that the power supply selection flexibility is improved.

The invention belongs to the technical field of batteries, and discloses a dual-ion battery and a preparation method thereof. The preparation method comprises the following steps: adding a polymer monomer in a burdening stage, uniformly dispersing the polymer monomer in a positive pole piece and a negative pole piece, finally injecting an electrolyte added with a polymer initiator, and initiating an in-situ polymerization reaction through high temperature, so that the liquid electrolyte is changed into a gel state. The invention also discloses the dual-ion battery prepared according to the method. The polymer monomers are uniformly distributed in the positive and negative pole pieces, so that the binding force of the active substance and the current collector is enhanced, and the pole piece expansion in the battery circulation process is reduced. In addition, the electrolyte is changed into a gel state, so that the oxidation potential of the electrolyte is remarkably improved, the stability of a positive and negative electrode interface is enhanced, the consumption of the electrolyte is reduced, and the safety performance of the battery is improved.

The application discloses a control method and device of a brake pedal in a vehicle and the vehicle. The method comprises the following steps: monitoring the working state of the brake pedal in the vehicle; acquiring the driving parameter of the vehicle based on the brake pedal in response to the working state starting; and constructing at least one assist curve of the brake pedal based on the driving parameter, wherein the at least one assist curve is used to represent the relationship between the pedal strength and the longitudinal acceleration or the relationship between the pedal strength and the pedal stroke, and is used to control the brake pedal. The application solves the technical problem of low flexibility of pedal feeling selection in the vehicle.