Multi-Axis Hand Controller for One-Handed Vehicle Motion Control
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Solution Overview
Problem
Conventional vehicle drive control systems, including steering wheels and pedals, occupy space, increase vehicle weight, and require multiple limbs for operation, making them inefficient and inaccessible to individuals with physical disabilities.
Innovation Solution
A compact interface device integrating a drive controller and a steering controller, allowing for one-handed control through pivotable and rotatable movements, which can replace traditional systems by combining actuation of prime movers, brake assemblies, and steering systems via a 'by wire' arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional drive control systems (steering wheels, pedals) are used, then reliable control functions are achieved, but vehicle space is occupied and weight is increased
Solution Approach 1:
The patent combines multiple control functions (accelerator, brake, steering) into a single integrated controller with multiple degrees of freedom. The controller integrates the drive controller and steering controller into one unified device that can perform all three functions through different movement axes, eliminating the need for separate traditional controls and reducing overall system weight.
Solution Approach 2:
The integrated controller serves multiple functions simultaneously - it controls vehicle acceleration, braking, and steering through a single device. The controller can detect different movement directions and axes to activate different control functions, making one component perform the work of traditionally separate components.
2Adaptability or versatility
If traditional drive control systems are used, then control functions are provided, but device complexity and space occupation increase
Solution Approach 1:
The controller is segmented into multiple independent detection axes (first axis for drive control, second axis for steering, third axis for brake control). Each axis can independently detect movements and trigger corresponding control functions, allowing the system to maintain complexity only where necessary while simplifying the overall structure compared to traditional separate controls.
Solution Approach 2:
The patent adds spatial dimensions to control input - using movements along different axes (pitch, yaw, roll) of a single controller to differentiate between various control functions. This dimensional approach allows multiple functions to be controlled through a unified device without requiring separate physical controls for each function.
3Ease of operation
If traditional control systems requiring multiple limbs are used, then adequate control is achieved, but accessibility for individuals with disabilities is reduced
Solution Approach 1:
The integrated controller provides universal access to all vehicle control functions through a single operable device. Individuals with disabilities can control acceleration, braking, and steering using one hand or limited movement capabilities, as all functions are accessible through different movements of the same controller rather than requiring coordination of multiple separate controls.
Solution Approach 2:
The system accepts various parameter changes in movement (different axes, directions, and magnitudes) to trigger appropriate control functions. This flexibility in parameter recognition allows the controller to adapt to different user capabilities and physical conditions, making the system more accessible to a broader range of users.
Data Source
AI summary
In at least some implementations, an interface device for control of multiple movements includes a drive controller and a steering controller. The drive controller is adapted to be movable about a pivot axis relative to a base. The steering controller carried by the drive controller for movement with the drive controller and rotatable relative to the drive controller about an axis of rotation that is not parallel to the pivot axis.