Dual-Position Paddle Shifters for Faster Multi-Gear Changes
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Solution Overview
Problem
Existing paddle shifter systems in vehicles require inefficient multiple actions for gear changes and lack customization options for a tailored driving experience.
Innovation Solution
A paddle shifter system with a detent mechanism and dual operating positions, allowing for a primary function (single gear shift) and a secondary function (optimal gear shift for fuel efficiency or performance) based on driver input, utilizing a processor to determine the appropriate gear change based on drive mode, vehicle speed, and current gear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a paddle shifter is assigned to only one paddle actuation function (single upshift or single downshift), then the device structure is simple, but the driver needs to step multiple gears using multiple distinct actions which reduces efficiency
Solution Approach 1:
The paddle shifter is designed with multiple contact positions (first contact position for upshift, second contact position for downshift, third contact position for double downshift) allowing a single paddle actuator to perform multiple gear shifting functions. This multi-functional design enables the driver to accomplish different gear changes using one paddle shifter rather than requiring separate actuators for each function.
2Ease of operation
If paddle shifters are located near the steering wheel, then the driver can make manual gear changes without taking hands off the steering wheel (improving control), but the paddle shifter requires complex manual actions for optimal gear changes
Solution Approach 1:
The paddle shifter incorporates multiple contact positions along the actuation path (first, second, and third contact positions) creating additional functional dimensions. By moving the paddle through different distances or positions, the driver can access different gear shifting functions (single upshift, single downshift, double downshift) from a single located position near the steering wheel, eliminating the need for complex multi-step actions.
3Productivity
If the paddle shifter has multiple contact positions with different functions, then the gear shifting efficiency is improved, but the detent mechanism and control system become more complex
Solution Approach 1:
The detent mechanism is segmented into multiple discrete contact positions (first, second, and third contact positions) along the paddle actuation path. Each contact position corresponds to a specific gear shifting function. This segmentation allows the system to provide multiple functions through a structured, modular approach where each position can be independently defined and controlled, making the complexity manageable through systematic organization.
Data Source
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AI summary
A system for controlling gear changes in a vehicle. The system includes a steering wheel and a detent mechanism having an idle location, a first location, and a second location, the detent mechanism is coupled to the steering wheel. The system also includes a paddle shifter coupled to the steering wheel and the detent mechanism, the paddle shifter having an idle position with no associated function when the paddle shifter is in the idle location, a first operating position with an associated first function when the paddle shifter is in the first location, and a second operating position with an associated second function when the paddle shifter is in the second location. The associated first function is different from the associated second function.