4results about How to "Comfortable driving environment" patented technology

This invention relates to the field of rail vehicles, and provides a method and apparatus for calculating the heat transfer coefficient of a glass surface. The method includes: obtaining the actual operating speed of the rail vehicle and the actual length of the side window; and calculating the heat transfer coefficient of the glass surface based on the actual operating speed and the actual length. According to the embodiment of this invention, the method for calculating the heat transfer coefficient of the glass surface can be derived by obtaining the actual operating speed of the rail vehicle and the actual length of the side window, thereby providing guidance for the design stage of rail vehicles. This not only creates a comfortable riding environment for passengers and onboard staff, but also reduces the heat load of the rail vehicle's air conditioning system.

A pneumatic tire is disclosed. A pneumatic tire of the present embodiment may include: a carcass configured to extend from an interior of a tread to a bead through a sidewall; a belt section positioned inside the tread and disposed on the outside in the radial direction of the carcass; a cap ply section located inside the tread and disposed on the outside in the radial direction of the belt section; and a silencing member attached to the radially inner surface of the tread. The cap ply portion may include: a first cap ply disposed on the outside in the radial direction of the belt portion; and a second cap ply that extends from one end of the first cap ply to at least a portion of the muffling material in the width direction of the tread, and that is disposed on the outside in the radial direction of the first cap ply.

The invention discloses a metro carriage air conditioner intelligent AI control system based on multi-source data fusion, relates to the technical field of metro air conditioner control, realizes precise and refined on-demand adjustment, and remarkably improves the comfort level of passengers. A traditional metro air conditioner generally carries out unified temperature control by taking a carriage as a unit, and cannot cope with the condition of non-uniform cold and heat in the carriage. Through the human body infrared sensor network, accurate sensing of distribution and activity intensity of passengers in different partitions in the compartment is achieved for the first time, and the air supply strategy of the air outlet is dynamically and directionally adjusted accordingly. Therefore, the problem of local supercooling or overheating caused by uneven distribution of passengers can be effectively solved, and a more uniform and comfortable riding environment is provided for the passengers; therefore, each air conditioner in the subway carriage can be reasonably controlled more effectively; the method is simple, effective, easy and practical.

The utility model discloses an in-vehicle massage device which comprises a massage device body, a first massage assembly, a second massage assembly and a first driving mechanism, and the massage device body is provided with a massage space for placing feet of a user; the first massage assembly is arranged in the massage space and used for massaging the feet of the user; the second massage assembly is connected to the massage device body and is provided with a first working position and a second working position relative to the massage device body, and when the second massage assembly is located at the first working position, the second massage assembly is contained in the massage space; when the second massage assembly is located at the second working position, the second massage assembly upwards extends out of the massage space and is used for massaging the legs of the user; the first driving mechanism is arranged in the massage space, connected with the second massage assembly and used for driving the second massage assembly to move between the first working position and the second working position. The utility model further discloses a vehicle with the same. Fatigue and body discomfort of passengers in the vehicle can be relieved, and the riding comfort of the passengers in the vehicle is improved.