Aiming at the problem that mechanical position sensor increases the complexity of control system and reduces the reliability of system, a new Position-free sensor controller for switched reluctance motor is proposed. Based on the inductance model of switched reluctance motor, the sensorless mathematical model is deduced and the sensorless control system is constructed. The actual

This paper designs a new scheme of developing controller based on MCU to realize the separation of core driver and logic operation and control. Usually, the intelligent controller based on single-chip computer has been solidified. After the development, its function is basically finalized. It can only be applied to specific design goals. It is also

In current cellular networks, mobility has random characteristics, which makes the channel arrival rate and service application types of cellular networks random, resulting in some cellular networks with excessive channel load and poor resource balance.Therefore, a channel allocation equalization controller for cellular network is designed and implemented based on layered architecture and modularization idea, which

Leakage current loss accounts for most of the energy consumption of the circuit and belongs to the dynamic process of real-time change. The traditional controller uses stack method to control the leakage current loss by controlling the input signal. It can not adapt to the dynamic change of leakage current and can not achieve the

This paper introduces the control technology of double-wheel vibratory roller, and develops a roller control system based on RC6-9 controller. The control method and flow chart of key systems such as driving system, vibration system and sprinkler system are given. The rationality of the control method is verified by simulation test. 　　There are many problems

Aiming at a parallel AMT (automatic mechanical transmission) hybrid electric vehicle, the hardware design of vehicle controller based on 32 bit microprocessor MPC5634 is introduced. The design principle and PCB wiring method of main hardware modules such as power supply circuit, input circuit and drive circuit are described in detail. The hardware-in-the-loop simulation test is

A design method of three-phase voltage source PWM (pulse width modulation) Rectifier Controller Based on power control is proposed. The mathematical model of VSR (voltage source rectifier) based on the principle of energy conservation can be equivalent to a linear constant system by neglecting the energy consumed by the circuit resistance and inductance charge and

Air conditioning system is a very important part of the vehicle, it can measure the specific comfort level of the vehicle. Consumers have a high demand for vehicle comfort, which poses a major challenge to the research and development of vehicle functions. Therefore, people began to study the operational performance, logical operation and efficiency of

Temperature is a common physical quantity in life. It is related to our real-time life. Human research on temperature has been continuing. After many years of development, many mature temperature sensors have been well applied in various fields. The following introduces the classification of temperature sensors and the method of selecting temperature sensors in design.

In the analysis of call failure events, it is found that many call failure reasons are due to the failure of the caller or the called user’s Rab assignment. This phenomenon has no regularity, resulting in low CS connection rate. Through the analysis and positioning of this problem, this paper summarizes the 1 bit rewrite