3results about How to "Eliminate zero drift" patented technology

The utility model discloses a high stability proportional solenoid valve belongs to solenoid valve technical field, including valve body module, electromagnetic drive module, heat compensation module and dynamic voltage stabilizing module, the valve body module includes valve body, the valve sleeve valve core of pressure equipment in valve body front end hole to and is connected in valve body rear end face rear end cover, the electromagnetic drive module includes the magnetic conducting sleeve, the coil assembly of installation in the magnetic conducting sleeve to and drive valve core's push rod, the magnetic conducting sleeve front end is pressed into valve body middle hole, and the rear end is fixed through the flange bolt, the compensation ring of heat compensation module is in the excess of the magnetic conducting sleeve outer wall, the dynamic voltage stabilizing module includes the voltage stabilizing piston of being located in the blind hole of valve core tail part, the voltage stabilizing spring of top pressure piston to and the adjusting screw of adjusting spring pre -tightness. The present application offsets the thermal deformation of the magnetic conducting sleeve through the heat compensation module, and the dynamic voltage stabilizing module continuously absorbs the fluctuation of oil back pressure to make the output flow smooth and non-pulsating, and keeps the high stability of proportional control.

The application discloses a kind of electronic mechanical brake system clamping force estimation methods of fusion multi-physics field, belong to vehicle technical field.The method includes: through the automatic calibration motor zero position and caliper idle stroke of collision disc detection;According to motor speed, determine motor operating area, the motor operating area includes weak magnetic zone and non-weak magnetic zone;According to the motor operating area, determine motor torque;According to motor torque, motor zero position, caliper idle stroke and brake disc temperature, calculate first clamping force;According to the brake disc temperature and the first clamping force, output final clamping force.The application determines motor operating area, carries out correction in weak magnetic zone, avoids low estimate of motor torque under high-speed working condition, improves the accuracy of motor torque.Brake disc temperature is corrected to idle stroke, eliminates displacement drift caused by caliper thermal expansion, so that the clamping force estimation under the same motor position remains consistent under different temperature conditions, improves the accuracy of clamping force estimation.

The invention relates to the technical field of electrical digital data processing, and discloses a digital evaluation system for operating parameters of a remote power supply in a marine environment, which comprises an operating data access module, a data logic mapping module, a feature logic recovery module and an operating state evaluation module, the data logic mapping module maps the original electric signal sequence into a data flow pattern with plastic fluid characteristics, and establishes a logic mapping model containing virtual roll gap parameters according to logic mapping pressure caused by external environment parameters; according to the method, deep decoupling of environmental strain interference and intrinsic electrical characteristics of a power supply is realized, data space warping is effectively eliminated, the reliability of the power supply is improved, the reliability of the power supply is improved, and the reliability of the power supply is improved. And it is ensured that the operation characteristics maintain topological consistency in a multi-parameter coupling fluctuation environment.