Vehicle Transmission System Merging Shift Actuator and Sensor
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Solution Overview
Problem
Existing vehicle transmission systems have a high number of component parts and complex assembly processes due to separate mounting of shift actuators and position sensors, which hinders operability and efficiency.
Innovation Solution
A transmission system where the shift actuator and position sensor are mounted to a single cover member on the crankcase, with a speed reduction mechanism housed between the cover member and the crankcase, allowing for automatic gear shifting and reducing the number of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the shift actuator and position sensor are mounted to separate members (shift cover and gear cover), then the mounting flexibility is improved, but the number of component parts increases and assembly becomes cumbersome
Solution Approach 1:
The patent merges the shift actuator and position sensor onto a single cover member (either the shift cover or gear cover). This consolidation reduces the number of separate component parts and simplifies the assembly process while maintaining the functional independence and mounting flexibility of both components. The cover member serves as a unified mounting platform for both the actuator and sensor.
2Ease of operation
If the shift actuator is applied to provide automatic transmission, then operability is improved, but the number of component parts increases when mounted separately
Solution Approach 1:
The patent consolidates the shift actuator and position sensor onto a single cover member to reduce component count. This merging approach maintains the automatic transmission functionality and improved operability while eliminating the complexity associated with separately mounting multiple components. The unified mounting structure simplifies the overall system architecture.
3Adaptability or versatility
If the shift actuator and position sensor are mounted to separate members, then the functional independence is maintained, but assembly performance deteriorates
Solution Approach 1:
The patent merges the mounting functions for the shift actuator and position sensor onto a single cover member. This approach maintains the functional independence of both components while significantly improving assembly performance by reducing the number of mounting operations and simplifying the assembly process. The unified cover member serves as an integrated mounting platform.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces the number of components, enhances assembly performance, and enables compact design, contributing to downsized engines and increased footrest space while maintaining efficient gear shifting.
Implementation Method 1
A speed reduction mechanism reducing the power outputted from the shift actuator is housed in a speed reduction chamber defined between the cover member and the crankcase
Data Source
AI summary
In a transmission system for vehicles in which shift position changing drive means is coaxially connected to a shift drum selectively establishing a plurality of gear trains for respective gear steps capable of selective establishment in response to a turned position and a shift position sensor detects which one of the gear trains is being established, the number of component parts is reduced and assembly performance is enhanced while allowing for automatic gear shifting by use of a shift actuator.