Electric Motorcycle Chassis Layout With Structural Battery Storage
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Solution Overview
Problem
Conventional electric motorcycles lack efficient storage solutions and secure, easily accessible charging infrastructure, particularly in urban areas where theft and vandalism are concerns, and their battery range and recharging infrastructure are limited.
Innovation Solution
A motorcycle chassis design that integrates the battery housing as a structural member, providing a low and forward weight distribution, increased stiffness, and a large dry storage area, along with a secure and easily accessible quick charge port system controlled by electronic locking mechanisms, allowing remote access and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If batteries are integrated into the chassis as a structural member, then structural stiffness and strength are improved, but weight distribution and storage space may be compromised
Solution Approach 1:
The battery housing is merged with the frame structure to form an integrated assembly. The battery housing acts as both the container for batteries and a structural component of the frame, eliminating the need for separate frame members in certain locations and improving overall structural stiffness while maintaining storage space efficiency.
Solution Approach 2:
The frame members are configured with vertical orientation and varied cross-sectional profiles. By utilizing the vertical dimension and creating narrow cross-sections with wide spacing, the design maximizes storage space between frame members while the vertical height provides the necessary structural strength and stiffness.
2Volume of moving object
If frame members are made narrow in cross-section to maximize storage space, then storage capacity is improved, but structural strength may be reduced
Solution Approach 1:
The frame members transition from horizontal to vertical orientation, utilizing the vertical dimension for structural support. This allows narrow cross-sections (reducing storage space constraints) while maintaining adequate spacing and vertical height to provide necessary structural strength through increased moment of inertia.
Solution Approach 2:
The frame assembly combines multiple materials including aluminum alloy for frame members, plastic for battery housing, and various fasteners. This composite approach allows optimization of each component for its specific function while achieving overall structural integrity despite narrow cross-sections.
3Stability of the object's composition
If batteries are positioned low and forward for optimal weight distribution, then vehicle handling is improved, but storage space configuration becomes more constrained
Solution Approach 1:
The battery housing is integrated into the frame structure at the low and forward position, combining weight distribution optimization with structural support functions. This placement maximizes storage space between frame members while achieving optimal center of gravity for vehicle handling.
4Object-affected harmful factors
If electronic locking mechanisms are added to protect charging ports, then security is improved, but device complexity increases
Solution Approach 1:
The electronic locking mechanism is integrated with the vehicle's existing battery management and control systems. The charging port lock is automatically controlled through the vehicle's electronic architecture, utilizing existing microcontrollers and communication protocols, thereby providing security without proportionally increasing overall system complexity.
Data Source
AI summary
A motorcycle, or saddle type vehicle, is disclosed that may have at least one seat and at least two wheels, at least one hub electric motor. A large dry storage compartment may be positioned between the rider and steering mount. A rechargeable battery and battery management system may be located below the storage compartment in a battery housing, where the battery housing may be a structural component of the chassis. A rear electronics housing may be attached to and located behind the battery housing, and may contain major electrical components such as electric motor controller and contactors. Two structural members, or frame side rails, may form sides of the storage compartment and extend between the electronics housing and steering mount. The electronics housing may also connect to the battery housing such that the battery housing reinforces and strengthens the chassis, or structural frame. A secondary storage compartment may be located under the seat. Additionally, the storage compartments may have electronic locking mechanisms that are activated via a wireless connection to a remote electronic device.