Movable Battery Steering Aid for Lower Tilt in Electric Two-Wheelers
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Solution Overview
Problem
Existing electric two-wheeled vehicles, such as electric motorcycles, face challenges in stabilizing during turns due to the weight distribution and design, leading to increased tilting angles that affect riding comfort and safety.
Innovation Solution
A steering aid system that moves the battery's center of mass relative to the vehicle's central plane using a movement mechanism, controlled by a direction signaling device and a controller, to reduce the tilting angle during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery weight is increased to provide sufficient driving autonomy, then the driving range is improved, but the vehicle stability during turns deteriorates due to increased tilting angle
Solution Approach 1:
The battery pack is designed with moveable mounting positions on the main frame, allowing the center of mass to be dynamically adjusted based on driving conditions. During turns, the battery can be repositioned to optimize weight distribution and reduce tilting angle, while maintaining sufficient driving autonomy through adequate battery capacity.
Solution Approach 2:
The system changes the positional parameter of the battery pack relative to the main frame. By adjusting the location of the battery along the longitudinal axis or laterally, the center of mass position is modified to improve stability characteristics during turning maneuvers without reducing the battery's energy storage capacity.
2Stability of the object's composition
If the battery is positioned on the central plane for balanced weight distribution, then the vehicle stability is improved, but the steering control during turns deteriorates due to increased tilting angle
Solution Approach 1:
The battery mounting system allows dynamic repositioning from the central plane position to lateral positions during turns. This dynamic adjustment enables the system to maintain stable weight distribution during straight-line driving while improving steering control and reducing tilting angle when turning by shifting the center of mass appropriately.
Solution Approach 2:
The system can preliminarily position the battery in optimal locations before turns are initiated. By detecting upcoming turns through sensors or navigation systems, the battery position can be adjusted in advance to prepare the vehicle's weight distribution for the impending maneuver, improving steering responsiveness and reducing tilting angle.
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The present disclosure relates to and electric two-wheeled vehicle (1) comprising at least a main frame (2), a front wheel (3) coupled to a front side of the main frame, a rear wheel (4) coupled to a rear side of the main frame, an electric motor for driving the rear wheel and/or front wheel, and a battery (7) supported by the main frame and configured for powering said electric motor, and wherein a central plane (CP) associated to the main frame is dividing the main frame into a left half and a right half. The battery or at least a portion of the battery is moveable with respect to the main frame, and the two-wheeled vehicle comprises a steering aid system (10) for reducing a tilting angle of the two-wheeled vehicle when taking a left or a right turn. The steering aid system comprises a movement mechanism (11) configured for moving a position of a centre of mass of the battery with respect to the central plane, a direction signaling device (12) configured for generating at least a first signal signaling entering a left turn, a second signal signaling coming-out of the left-turn, a third signal signaling entering a right turn and a fourth signal signaling coming-out of the right turn, and a controller (13) configured for controlling the movement mechanism in response to the signals from the direction signaling device.