Front control method of intelligent motor under idle running condition of automobile

Abstract

The invention discloses a front control method of an intelligent motor under an idle running condition of an automobile. Electronic load signals of an engine and a whole vehicle are collected, and anexcitation current range, a target voltage and a motor load of the intelligent motor are calculated, so that front control over the intelligent motor is realized, an excitation current is adjusted inreal time when the detected signal is changed, reaction is conducted in advance before large-power electronic load running, the excitation current of the intelligent motor is inhibited in an upper limit value of the excitation current range, the situation that engine torque compensation cannot respond to electronic load torque impact in time due to excessive excitation current increase can be avoided, so that the situation that the stability requirements of engine idle speed control and real vehicle experience of a user cannot be met due to sharp decrease of a rotating speed of the motor is avoided.

Description

technical field [0001] The invention relates to the field of engine idle speed control, in particular to a pre-control method of an intelligent motor under the idle running condition of an automobile. Background technique [0002] With the improvement of automobile energy-saving requirements, more and more vehicles are equipped with smart motors. When the engine is idling, when using high-power electronic loads such as electronic power steering, the load of smart motors changes greatly, and the sudden change of electronic loads brings When the intelligent motor load changes suddenly, the engine torque compensation cannot respond to the electronic load torque fluctuation in time, and the engine idle speed control cannot meet the customer's requirements, which will cause the engine speed to drop sharply. Under this working condition, the user experience is poor, and the engine idle speed is not satisfied The stability requirement of the control; with the trend of engine displa...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of automobile energy-saving requirements, more and more vehicles are equipped with smart motors. When the engine is idling, when using high-power electronic loads such as electronic power steering, the load of smart motors changes greatly, and the sudden change of electronic loads brings When the intelligent motor load changes suddenly, the engine torque compensation cannot respond to the electronic load torque fluctuation in time, and the engine idle speed control cannot meet the customer's requirements, which will cause the engine speed to drop sharply. Under this working condition, the user experience is poor, and the engine idle speed is not satisfied Stability requirements for control; this problem becomes more prominent with the trend of downsizing engine displacement

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