Steering Wheel Swing Control for Combined Accelerator and Brake Input
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Solution Overview
Problem
Existing steering wheel configurations require drivers to switch between separate operation portions for accelerator and brake operations, leading to complex driver operations.
Innovation Solution
A steering wheel design featuring a single operation portion that is swingable to input both accelerator and brake operations, with synchronized left and right operation portions to improve operability and prevent erroneous operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate operation portions are provided for accelerator and brake operations, then the functions are clearly separated, but the driver operation becomes complicated
Solution Approach 1:
The patent combines the accelerator operation portion and brake operation portion into a single integrated operation portion. This operation portion can be operated in different directions or modes to input both accelerator operations and brake operations, eliminating the need for separate components and simplifying driver interaction while maintaining clear functional distinction through operational direction or mode differentiation.
Solution Approach 2:
The single operation portion is designed to perform multiple functions by detecting the direction or mode of operation. When operated in a first direction, it inputs accelerator operations; when operated in a second direction, it inputs brake operations. This multi-functional design reduces the number of components while preserving reliable functional separation through operational context.
2Ease of operation
If a single operation portion is used for both accelerator and brake operations, then operational complexity is reduced, but the risk of erroneous operation increases
Solution Approach 1:
The system incorporates feedback mechanisms that detect the direction or mode in which the operation portion is operated. Based on this feedback, the control system determines whether the input is an accelerator operation or a brake operation. This feedback loop ensures that even with a single operation portion, the system can reliably distinguish between different operational intents and prevent erroneous interpretations.
Solution Approach 2:
The operation portion utilizes dynamic operational characteristics such as direction of movement, speed of operation, or temporal patterns to differentiate between accelerator and brake inputs. By analyzing these dynamic parameters, the system can accurately determine the driver's intent and prevent erroneous operations while maintaining a simplified single-component design.
Data Source
AI summary
A steering wheel includes: a steering portion which is gripped and steered by a driver; a boss portion which is disposed inside the steering portion and is coupled to a steering center shaft of the steering portion; and an operation portion which is disposed adjacent to the steering portion, and is configured to be swingable with respect to the steering portion, to input an accelerator operation by being operated to swing in a first direction with respect to the steering portion, and to input a brake operation by being operated to swing in a second direction opposite to the first direction.