Three-Wheeler Battery Layout for Front-Wheel Load and Roll Control
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Solution Overview
Problem
Dual front, single rear-wheeled three-wheelers have not been effectively electrified, leading to inefficiencies in propulsion and stability during turns, as existing designs do not adequately distribute the weight and positioning of electric energy storage devices and motors to reduce load on steerable wheels and prevent body frame rolling.
Innovation Solution
The design includes side-by-side seats, a left front drive steerable wheel, a right front drive steerable wheel, a rear wheel, a steering mechanism, an electric energy storage device, an electric motor, and a power transmission mechanism, where the electric energy storage device is positioned to reduce load on steerable wheels and prevent body frame rolling by being placed between the wheels and extending towards the front, with its ends between the steerable wheels, and the seats positioned to be within a defined triangle area for optimal balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric energy storage device is positioned in the triangle area between the wheels, then the load on steerable wheels is reduced and body frame rolling is prevented, but the device complexity increases due to precise positioning requirements
Solution Approach 1:
The patent applies local quality by positioning the electric energy storage device at a specific location within the triangle area formed by the three wheels. This precise local positioning ensures that the device's weight contributes to stabilizing the body frame during turns while minimizing load on the steerable wheels, thus resolving the contradiction between reliability improvement and device complexity.
2Reliability
If the seats are positioned within the triangle area for optimal balance, then the vehicle stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies that the seats should be positioned within the triangle area formed by the three wheels, applying local quality to the seating arrangement. This positioning optimizes the center of gravity distribution to improve vehicle stability during operation, while the design accommodates reasonable manufacturing tolerances to avoid excessive manufacturing precision requirements.
3Productivity
If the electric motor and power transmission mechanism are added for electrification, then the propulsion efficiency is improved, but the device complexity and weight increase
Solution Approach 1:
The patent merges the electric motor and power transmission mechanism into a integrated propulsion system that drives the vehicle efficiently. By combining these components and positioning them strategically within the vehicle frame, the patent achieves improved propulsion efficiency while managing the increase in device complexity through systematic integration.
Solution Approach 2:
The patent replaces traditional mechanical propulsion systems with an electric motor-driven system. This substitution improves propulsion efficiency through electric drive technology while the overall system complexity is managed by integrating the electric components with the existing vehicle structure and using the triangle area positioning strategy.
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 achieves electrification of dual front, single rear-wheeled three-wheelers by reducing the load on steerable wheels and preventing body frame rolling during turns, ensuring stable and efficient travel.
Implementation Method 1
an electric energy storage device that stores electrical energy
Implementation Method 2
an electric motor that generates torque by the electrical energy stored in the electric energy storage device
Data Source
AI summary
A three-wheeler including two front wheels and a rear wheel, left and right seats, a steering mechanism steering the front wheels, an electric motor generating a torque by electrical energy, a power transmission mechanism transmitting the torque to the front wheels, and a body frame. A center of gravity of the three-wheeler is more frontward than a front end of the two seats and than a middle point of the wheelbase, and is more rearward than a front end of the electric energy storage device. The seats is, in a top view, partially in a triangle area that has a center of each of the front wheels and the rear wheel as vertices. The electric energy storage device, in the top view, overlaps a foot-resting area and is partially in the triangle area. The electric energy storage device is between the two front wheels.