37results about How to "Large parameter range" patented technology

The invention discloses an internal combustion engine power system for matching a swing block with an inner cavity cam rotor, belongs to the field of internal combustion engines, and relates to the internal combustion engine power system for matching the swing block with the inner cavity cam rotor. In the power system, the inner cavity cam rotor is used for forming a cam mechanism with multiple swing driven pieces mounted on a center component in a cavity, and is used for forming multiple peripherally distributed sealed working cavities with end components; the sealed working cavities are changeable in volumes along with relative rotation of the inner cavity cam rotor and the center component; valves are arranged in a cooperation mode to finish four processes of intake, compression, acting and exhaust of the Otto cycle therein; and chemical energy generated by gas combustion is directly converted to mechanical energy in a relative fixed shaft rotating mode of the inner cavity cam rotor and the center component. High-pressure gas directly pushes a rotor fixed shaft to rotate and to output power; and the system is simple in structure and wide in parameter adjusting range. Under longitudinal capturing control of additional swing block, the system is liable to realize flexible control; and compared with a triangular rotor internal combustion engine power system, the system has more prominent advantages.

The invention belongs to the field of internal combustion engines, and relates to an inner cavity cam rotor internal combustion engine power system. In the system, a cam mechanism is composed of inner cavity cams and a plurality of sliding block followers installed on central members in a cam cavity in the system, and a plurality of sealed working cavities distributed circumferentially are composed of the inner cavity cams and end members; the cam mechanism and the sealed working cavities change in volumes with the relative rotation of the inner cavity cams and the central members, and are fit to valves to finish four procedures, namely air intake, compression, acting and exhaust of Otto cycle therein; chemical energy generated from gas combustion is directly converted into mechanical energy output in the fixed-axis rotation form of the inner cavity cams or the central members. In the invention, a rotor fixed axis is driven to rotate and output power by high-pressure gas directly; the structure is simple, and the parameter adjustable range is wide. The flexible control is easy to achieve under the control of an additional sliding block escapement device, so that the positive and negative rotation is realized. Compared with piston internal combustion engine and triangular rotor internal combustion engine power systems, the inner cavity cam rotor internal combustion engine power system has many outstanding advantages.

The invention discloses an all-coefficient adaptive control method based on a one-order characteristic model. The all-coefficient adaptive control method comprises the following steps: calculating a primary parameter estimation vector theta1(k) of a current cycle according to the formula which is as shown in the description; calculating an estimated parameter vector theta(k) according to the primary parameter estimation vector theta1(k) of the current cycle and an estimated parameter vector theta(k-1) of a previous cycle; carrying out feedback control according to estimated parameters alpha(k) and beta0(k) of the current cycle to obtain a control vector u(k) of the current cycle. The all-coefficient adaptive control method based on the one-order characteristic model is few in parameter, simple in algorithm, large and easily definable in parameter range, high in tracking speed of dynamic gain calculated by parameter estimation values and high in adaption capability.