32 results about "AMAX" patented technology

The invention discloses an included angle motion path planning method and an included angle motion path planning device. The included angle 2theta of the included angle motion is formed by a first path and a second path. The included angle motion path planning method comprises steps that acceleration limit value Amax and acceleration change time Ts are acquired; speed F1 of a first middle point and speed F2 of a second middle point are acquired, and the first middle point is the middle point of the first path, and the second middle point is the middle point of the second path; the angular bisector direction of the included angle 2theta is set to be an X direction, and a direction vertical to the X direction is set to be a Y direction; the speed of the Y direction and the speed of the X direction are planned according to a relation between F1 cos theta + F2 cos theta and Amax Ts. Compared with the prior art, the motion speed of the included angle motion between the middle point of the first path and the middle point of the second path is planned, and the acceleration is not zero during transition, and therefore the speed is changed quickly during the transition, the time of the transition is shortened, and efficiency is improved.

The invention discloses a stator winding connection method for a low-voltage high-power multipole multiphase permanent magnet synchronous motor. In the invention, for an AC (alternating current) motor of which the phase number is m, the pole number is 2p, the stator slot number is Z, phase splitting is carried out according to a pi / m electrical angle, and the maximum number of coil assemblies which can be connected in parallel in each phase is amax, in the method disclosed by the invention, each coil assembly which can be connected in parallel in each phase of the stator winding is taken as abranch, m branches of the adjacent m phases in space can be connected to form a m-phase symmetrical starlike connection group according to a rule of electromotive force phase mutual difference 2pi / m electrical angle, and then the head ends of each branch belonging to the same phase in the obtained amax starlike connection groups are connected in parallel while the amax star contacts are not connected; thus, the stator winding can be formed by connecting the amax m-phase symmetrical starlike connection groups in parallel, the total number of series turns of each coil assembly is the number of series turns of each phase winding, and the stator winding is an m-phase symmetrical winding. The method is convenient to adjust the series turns of each phase of the stator winding and the slot utilization and can reduce the circulation probably generated by the paralleled windings.

An offline bridge crane locus control method is a constrained under-actuated bridge crane acceleration locus control method. The method comprises the following steps: 1, locus programming scheme: adopting a smooth acceleration movement locus; 2, locus parameter determination: solving the kinetics equation of a crane system and analyzing a coupling relationship between trolley acceleration and load swing for any delivery process, and calculating an actual maximum acceleration amax, a uniform acceleration ta time and a uniform speed time tc in order to obtain an ideal acceleration locus meeting some core performance indexes; and 3, control method realization: realizing the crane control by calculating a deviation between x(t) and an acceleration single continuous integral signal xv(t) in real time by means of a trolley displacement signal x(t) and a speed signal and using a traditional PD controller to generate a corresponding drive motor control command in order to complete a transport task.

The invention discloses a speed control method for a numerical control multilayer leather cutting machine tool, comprising the following steps of: (1) setting the numerical control multilayer leather cutting process including a main motion and a feed motion; and for the speed control on the feed motion, figuring out the acceleration Ja of the machine tool and deducting an acceleration formula anda speed calculation formula according to performance indexes of the feed maximum acceleration amax and the feeding maximum speed Vmax; (2) judging whether a leather material to be processed is a standard leather material or not and correcting; (3) judging whether the layer number of leather to be cut is a single layer or not and correcting; and (4) judging whether the current cutting track is a straight line or not: correcting the speed according to the radius Rx of a current path to obtain V3 and linearly calculating according to the speed in a path curvature radius interval to obtain the cutting speed of any curvature radius. The speed control on the tangential accompany motion can be realized. The speed control method is suitable for multilayer leather processing occasions and has highprocessing speed and efficiency optimizing degree; and the adjust error is reduced.