AMT (Automated Mechanical Transmission) motor control method and system for hybrid electric vehicle

Abstract

The invention provides an AMT (Automated Mechanical Transmission) motor control method and system for a hybrid electric vehicle. The control system comprises a comparator, a PID (proportion integration differentiation) controller, an expert system, an AMT direct-current motor, an angular velocity calculation module and an angle sensor, wherein the comparator compares a preset target angle value with a current value acquired by the angle sensor to obtain angular deviation, and the angular deviation is respectively sent to the PID controller and the expert system; the angular velocity calculation module calculates an angular velocity according to an angle difference at two adjacent moments and transmits the angular velocity to the expert system; and the expert system adjusts the gain of a PID control system according to the value of the angular deviation and the value of the angular velocity, thereby completing the control on an AMT motor. The AMT motor control system based on the expert system carries out real-time adjustment on PID parameter values according to the current angular velocity and angular deviation information, thereby realizing targeted PID control, ensuring the good control on the gear selecting and shifting motor in each state, and then realizing the reliable switching of AMT gears in the running process of the hybrid electric vehicle.

Description

technical field [0001] The invention is mainly applied in the technical field of hybrid electric vehicles, and provides an AMT motor control method and control system for hybrid electric vehicles. Background technique [0002] There are various disadvantages in the currently widely used fuel engine vehicles, such as low energy utilization rate, and what is more serious is that exhaust gas pollutes the environment. In recent years, major automobile groups have been conducting research and development of hybrid electric vehicles, most of which are mainly hybrid electric buses. The hybrid power device not only takes advantage of the long continuous working time of the engine and good power performance, but also takes advantage of the advantages of no pollution and low noise of the electric motor. This research and development direction is in line with my country's national conditions and is conducive to the research and development of electric vehicles in my country. However, ...

AI Technical Summary

Problems solved by technology

Affected by the internal process and gear ratio of the gearbox, the rotation resistance of the motor is different for different position selection and gear shifting. The fixed ratio, integral, and differential parameters can only ensure the optimal control in a certain state, and cannot guarantee that the motor can reach other positions at any angle. Reliable control of any target position

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