Acceleration Detector for Side Stand and Vehicle Orientation
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Solution Overview
Problem
Existing side-stand-equipped vehicles require multiple sensors to detect the state of the side stand and vehicle orientation, increasing complexity and cost, and are prone to malfunctions due to poor contact issues.
Innovation Solution
A single acceleration detector attached to the side stand portion detects both the state of the side stand and vehicle orientation, using gravity acceleration to determine the side stand state and low-pass filtering to improve precision, while being protected from dirt and flaws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to detect side stand state and vehicle orientation, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple sensing functions into a single acceleration detector. The acceleration detector simultaneously detects both the side stand state (by sensing gravitational acceleration components) and vehicle orientation (by sensing dynamic acceleration components), eliminating the need for separate sensors and reducing system complexity while maintaining detection accuracy
Solution Approach 2:
The acceleration detector is designed to perform multiple functions: it detects side stand state by monitoring gravitational acceleration components and detects vehicle orientation by monitoring dynamic acceleration components. This multi-functional approach allows a single device to replace what would traditionally require multiple specialized sensors
2Ease of operation
If a switch is used to detect side stand state, then detection function is achieved, but reliability decreases due to poor contact issues
Solution Approach 1:
The patent replaces the mechanical switch-based detection system with an acceleration detector that uses gravitational and dynamic acceleration sensing. This substitution eliminates mechanical contact components that are prone to wear and failure, thereby significantly improving system reliability while maintaining the side stand state detection function
3Stability of the object's composition
If acceleration detector is placed far from main body, then side stand portion movement is reduced, but detection precision of vehicle orientation decreases
Solution Approach 1:
The patent optimizes the placement parameters of the acceleration detector by positioning it at a specific location on the side stand portion that balances two competing requirements: being far enough from the main body to minimize the influence of side stand movement, yet close enough to maintain accurate vehicle orientation detection. This parameter optimization resolves the contradiction between stability and detection precision
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 configuration reduces the number of parts, minimizes the risk of malfunction, and enhances detection precision by using a single sensor to detect both side stand state and vehicle orientation, improving reliability and accuracy.
Implementation Method 1
the operation unit determines the state of the side stand portion according to acceleration of gravity applied to the acceleration detector
Implementation Method 2
a signal from the acceleration detector is passed through the low-pass filter to remove unnecessary noise components such as vibration generated while the vehicle is traveling
Data Source
AI summary
An acceleration detector is placed on a side stand portion attached to the main body of a side-stand-equipped vehicle. The acceleration detector has a CPU. In a side stand state detection mode, the CPU detects the state of the side stand portion according to a detection signal from the acceleration detector. In an orientation detection mode, the CPU detects the orientation of the main body of the side-stand-equipped vehicle.