Vehicle Lid and Hidden Handle Control via LIN and PID Feedback
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Solution Overview
Problem
Existing vehicle control systems for fuel filler lid, charging port lid, and hidden handle apparatuses face limitations due to separate control systems requiring additional cable harnesses, leading to voltage drops, stability issues, and difficulty in implementing real-time closed-loop control, with limited scalability and inability to meet specific client requirements.
Innovation Solution
Integration of the actuation apparatus and its control unit as a slave node with a master node using LIN BUS communication, employing a PID control algorithm that dynamically adjusts motor voltage based on temperature, power supply voltage, and position to enable precise closed-loop control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate control system is used for the actuation apparatus, then the control function can be implemented, but additional cable harnesses and receiving terminals are required, increasing system complexity and causing voltage drops
Solution Approach 1:
The patent integrates the control unit directly into the actuation apparatus, merging previously separate components (control system and actuation apparatus) into a single integrated unit. This eliminates the need for additional cable harnesses and receiving terminals, reducing system complexity while improving control stability by eliminating voltage drops and signal distortion issues associated with long cable runs
2Loss of information
If cable harnesses are used to connect separate control systems, then communication is possible, but voltage drops occur and parameter signals may be distorted, affecting control stability
Solution Approach 1:
By integrating the control unit into the actuation apparatus, the patent eliminates long cable harnesses that cause voltage drops and signal distortion. The control unit and actuation apparatus become a single electrical system, ensuring accurate parameter signal transmission without the harmful effects of long-distance cable transmission
3Adaptability or versatility
If a separate control system with predetermined constant voltage is used, then the system structure is simple, but real-time closed-loop control cannot be implemented and adaptability to different client requirements is poor
Solution Approach 1:
The patent implements dynamic voltage control where the control unit can adjust motor driving voltage in real-time based on feedback parameters such as position, temperature, and power supply voltage. This dynamic adaptability allows the system to meet different client requirements for motor operation smoothness and implement real-time closed-loop control, while the integrated structure keeps the system relatively simple
4Speed
If parameter signals are transmitted through cable harnesses, then communication between control systems is possible, but delay and limitation in parameter collection and transmission prevent real-time closed-loop control
Solution Approach 1:
The integration of the control unit into the actuation apparatus enables direct electrical connection between parameter sensors and the control unit, eliminating cable harness delays. This allows for real-time collection and transmission of parameters such as motor position, temperature, and power supply voltage, enabling real-time closed-loop control while maintaining a simple integrated structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This integrated system enhances control stability, allows for more control signals, and improves scalability, enabling precise and adaptive motor control that meets specific client requirements by reducing voltage drops and improving real-time feedback.
Implementation Method 1
employing a PID control algorithm that dynamically adjusts motor voltage based on temperature, power supply voltage, and position to enable precise closed-loop control
Data Source
AI summary
The present disclosure relates to a fuel filler apparatus/charging port apparatus/hidden handle apparatus for a vehicle. The fuel filler apparatus/charging port apparatus has a fuel filler lid/charging port lid, and the hidden handle apparatus has a hidden door handle. The fuel filler apparatus/charging port apparatus/hidden handle apparatus includes actuation apparatus and actuation apparatus control unit. The actuation apparatus includes motor, where the motor has an open position, a closed position, and an intermediate position between the open position and the closed position, and the motor is configured to drive an actuation component to move between the open position and the closed position. The actuation apparatus control unit receives an opening signal and a closing signal from a body control module, the opening signal causes the actuation component to move to the open position, and the closing signal causes the actuation component to move to the closed position. The actuation apparatus control unit performs closed-loop control of the motor based on a proportional-integral-derivative control algorithm according to a temperature, a voltage, and a position of the motor, to precisely control the fuel filler lid apparatus/charging port lid apparatus/hidden handle apparatus to move between the open position and the closed position.