Electric Motorcycle Inertial Measurement Unit Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inertial measurement units on electric motorcycles are not optimally protected and positioned, leading to reduced detection accuracy and safety due to exposure to foreign objects and environmental contaminants.
Innovation Solution
An inertial measurement device is designed to be mounted on an electric motorcycle at a location close to its gravity center, within a protected mounting space defined by the vehicle frame and body covers, reducing impact from foreign objects and environmental contaminants while maintaining detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the inertial measurement unit is installed on the vehicle body without a dedicated mounting space, then the device complexity is reduced, but the detection accuracy and protection from foreign objects deteriorate
Solution Approach 1:
The patent combines the inertial measurement unit mounting with the existing vehicle frame structure, specifically utilizing the space between the seat cushion and battery box. This merging approach creates a dedicated mounting space without adding separate complex mounting structures, thereby improving detection accuracy while avoiding excessive device complexity.
Solution Approach 2:
The inertial measurement unit is nested within the existing vehicle body structure, specifically positioned in the mounting space formed by the vehicle frame, seat cushion, and battery box. This nesting approach allows the sensor to be protected and properly positioned without requiring an entirely separate mounting system.
2Reliability
If the inertial measurement unit is positioned away from the gravity center, then the ease of installation is improved, but the operability and detection accuracy deteriorate
Solution Approach 1:
The patent identifies a specific location on the vehicle body that satisfies multiple requirements: it is close to the gravity center for accurate detection, yet it is the available space between the seat cushion and battery box that facilitates installation. This local quality approach ensures both operability and ease of installation are achieved at the same position.
3Object-affected harmful factors
If the inertial measurement unit is exposed to the external environment, then the ease of access for installation is improved, but the protection from foreign objects and contaminants deteriorates
Solution Approach 1:
The inertial measurement unit is nested within the protected space formed by the vehicle frame, seat cushion, and battery box. This nesting provides natural protection from foreign objects and environmental contaminants while the unit remains accessible through the designed mounting space, balancing protection and accessibility.
4Object-affected harmful factors
If the inertial measurement unit is mounted in a protected space, then the protection from contaminants is improved, but the device complexity increases
Solution Approach 1:
The patent merges the protective enclosure function with the existing vehicle body components (vehicle frame, seat cushion, battery box). Rather than adding a separate protective housing, the design utilizes the natural cavity formed by these components, thereby providing contamination protection without significantly increasing device complexity.
Data Source
AI summary
Provided is an inertial measurement device of an electric motorcycle. The electric motorcycle includes a vehicle frame unit including a head tube support frame and a secondary frame; a seat cushion arranged on the secondary frame and including an operator's hips seat; a battery box arranged on the vehicle frame unit and located at a front lower side of the seat cushion, a power unit arranged on the battery box, a vehicle body cover unit covering the vehicle frame unit, an inertial measurement unit mounted on the vehicle frame unit. A lower side of the seat cushion, a front side of a vertical imaginary line in a vehicle body up-down direction and passing through a rear end of the operator's hips seat, a bottom edge of the secondary frame, and a rear side of the battery box jointly define a mounting space, in which the inertial measurement unit is mounted.