Brushless direct-current motor for single-step motion of automobile throttle valve

Abstract

The invention relates to a brushless direct-current motor for single-step motion of an automobile throttle valve. The brushless direct-current motor is characterized by comprising a driving circuit and a brushless motor, wherein the brushless motor is connected onto a shell, and the output shaft of the direct-current brushless motor is connected with a gear speed reducer; a magnet is embedded at the shaft end of a sensing shaft, a linear Hall sensor is used for detecting the position of the throttle valve, and the linear Hall sensor is arranged at the position corresponding to the magnet; the output shaft of the gear speed reducer is connected to the automobile throttle valve mechanism. The flow path comprises the following steps: 1, powering on; 2, detecting the command of an upper computer; 3, returning to the step 2 if the command is not received, and entering the next step if the command is received; 4, determining a control strategy according to the content of the command, and configuring relevant parameters to control the motor; 5, reading the value of the linear Hall sensor of the speed reducing mechanism; 6, uploading the current position information to the upper computer; 7, entering the next step if the position required by the command is reached, or returning to the step 4 to continuously control the command of the motor to be completed, controlling the motor to stop and returning to the step 2.

Description

technical field [0001] The invention relates to an automobile throttle technology, in particular to a brushless DC motor used for single-step movement of the automobile throttle. Background technique [0002] In the electric-electric AMT system, the brushless DC motor and mechanical stroke control technology are selected for the executive motor, and the movement and power are respectively transmitted to the throttle wire through a certain mechanical device-reduction mechanism, so as to control the opening and closing of the throttle. . The characteristic of throttle control is that it is required to be able to complete any change in the throttle opening within a certain period of time within a certain period of time, track the stroke of the accelerator pedal under normal driving conditions, and complete the driver's intention to control the engine; Refueling is realized by the valve; the work of oil collection and refueling required due to power interruption and recovery is...

AI Technical Summary

Problems solved by technology

[0003] Traditional brushless DC motor drivers only realize simple movements such as forward rotation, reverse rotation, and braking of the motor. Single-step motion is only the characteristic of stepping motors, and it is difficult to adapt to occasions that require precise control of brushless DC motors.

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