Method and system for controlling operation of car sunroof

Abstract

The invention discloses a method and a system for controlling the operation of a car sunroof. The method comprises the following steps of: dividing the operating parameter of the movement of the sunroof into at least two sections according to a preset rule, and obtaining a target voltage value corresponding to each section and expected to be outputted to a motor; obtaining the power voltage value of a current section, calculating the duty ratio corresponding to the current section according to the power voltage value of the current section and the target voltage value of the current section, wherein the target voltage value of the current section is expected to be outputted to the motor; and controlling the soft starting and the soft stopping of the motor according to the duty ratio of the current section. According to the invention, the voltage inputted to the motor is slowly increased or reduced, so that the operation of the sunroof is controlled, and the condition that because of the noise and vibration brought by the sudden starting and stopping of the motor, the comfort reduction of a customer is reduced when the customer takes a car is reduced. Otherwise, during the process of the soft stopping, the target voltage in stopping is reduced because of the multi-time soft stopping method, so that the inertial forward-rushing distance when the motor commands the stopping under various working conditions is effectively controlled, and the position control precision of the stopping of the sunroof is improved.

Description

technical field [0001] The invention relates to the technical field of automatic control, and more specifically relates to a method and system for controlling the operation of an automobile sunroof. Background technique [0002] With the continuous development of the automobile industry, all kinds of cars are equipped with automatic sunroofs. The sunroofs are installed on the roof of the car, which can effectively circulate the air in the car, increase the entry of fresh air, and bring healthy and comfortable enjoyment to the car owner. At the same time, the car sunroof can also broaden the field of vision and provide users with a comfortable ride. Therefore, the operation of the car sunroof will also have a certain impact on users. [0003] At present, the existing method of controlling the start and stop of the sunroof of the car generally uses the switch acquisition module to collect the input state of the switch. When a valid input signal is collected, the sunroof contro...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and system for controlling the operation of the sunroof of an automobile, so as to overcome the problem in the prior art that the comfort of the user is reduced due to the noise and vibration caused by the sudden start and stop of the motor

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