Steering Wheel Gear Controls for Faster Shift Selection
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Solution Overview
Problem
Current gear-changing systems in automotive transmissions require manual intervention or are limited to a central location, reducing driver convenience and vehicle space efficiency.
Innovation Solution
A steering wheel system with integrated buttons or selection areas for gear control, including park, reverse, neutral, and drive, utilizing a wireless transmitter to communicate with a gearbox for automatic gear shifting, along with a digital display for additional feature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gear control is located at the center line of the vehicle in line with the transmission, then the gear box structure is maintained, but driver convenience and response time are reduced
Solution Approach 1:
The gear selection function is extracted from the traditional central gearbox location and relocated to the steering wheel. The steering wheel system includes selection areas configured to select a gear, with a control unit that controls gear selection based on the selected area, effectively separating the gear control function from the mechanical gearbox location.
Solution Approach 2:
The steering wheel is transformed from a single-function steering device to a multi-functional control interface that combines steering control with gear selection and other vehicle feature controls. The steering wheel system integrates multiple selection areas for different functions including gear selection, cruise control, and mode changes.
2Productivity
If manual gear changing is used with a gear box and clutch, then the transmission structure is simple, but driver workload and time consumption increase
Solution Approach 1:
The system enables automatic gear changing through the control unit that automatically executes gear selection based on driver input from the steering wheel selection areas. The control unit controls the selection of the gear according to the selection area selected, eliminating the need for manual clutch operation and gear shifting.
Solution Approach 2:
The manual mechanical gear shifting process is replaced with an electronic control system. The steering wheel system uses electrical signals from the selection areas, processed by the control unit, to actuate gear changes, replacing the traditional mechanical clutch and gear lever operation.
3Loss of time
If gear control buttons are integrated into the steering wheel, then driver response time and convenience are improved, but the steering wheel structure becomes more complex
Solution Approach 1:
The gear control buttons and selection areas are merged into the steering wheel structure, combining multiple control functions into a single integrated interface. The steering wheel system integrates selection areas for gear selection with other vehicle control features, consolidating controls that were previously distributed throughout the vehicle interior.
4Adaptability or versatility
If a digital display is incorporated into the steering wheel system, then control of additional features is enabled, but the steering wheel complexity increases
Solution Approach 1:
The digital display transforms the steering wheel into a universal control interface for multiple vehicle features. The display can show and control temperature, audio system, volume, and other vehicle functions in addition to gear selection, allowing one component to perform many different control tasks.
Data Source
AI summary
A steering wheel system includes a steering wheel; selection areas on the steering wheel to select a gear; and a control unit that selects the gear according to the selection area selected.