2results about How to "Meet basic requirements" patented technology

This invention discloses a pneumatic vacuum assembly for an arc heater, comprising a plug, a housing, a seal, a spring, a connecting rod, a ejector pin, and a piston. Both the plug and the housing are cylindrical structures connected by coaxial threads. The seal is placed between the plug and the housing. The spring is positioned between the plug and the connecting rod, with the plug determining the upper limit of the spring's horizontal position. Changing the spring tension pushes the connecting rod and ejector pin, causing the piston to move vertically up and down. When the spring is in a relaxed state, the space enclosed by the housing, connecting rod, ejector pin, and piston forms a vacuum channel. When the spring is in a compressed state, the space enclosed by the housing and piston forms a vacuum-stopping channel. The bottom of the vacuum channel is connected to the inner cavity channel of the arc heater. An external vacuum pump is connected to the vacuum channel through a radial hole on the left side of the housing. This invention can be applied to arc heaters in aerospace aerodynamic thermal protection ground simulation tests.

The application provides a shift signal interaction method, an engine controller, a readable storage medium and a vehicle. The interaction method comprises the following steps: in a first stage of a shift process, filtering a shift signal used for representing non-transmission intervention engine torque in the stage, and sending the filtered shift signal to a transmission controller; in a second stage of the shift process, filtering a shift signal used for representing non-transmission intervention engine torque in the stage, fusing the filtered shift signal and a non-filtered shift signal, and sending the fused shift signal to the transmission controller until the fused shift signal returns to the non-filtered shift signal, so as to complete the shift process. The application can optimize the signal quality of the interaction control of the shift process of the engine controller and the transmission controller, and improve the shift quality.