Automotive Transmission Lever Mode Switching Mechanism
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Solution Overview
Problem
Current automotive transmissions lack flexibility in operation modes, failing to accommodate individual driver preferences and driving conditions, which limits driver convenience and efficiency.
Innovation Solution
An automotive transmission system featuring a knob, a vertically movable lever, and a driving unit that allows the lever to switch between a joystick mode and a rotary mode, enabling drivers to select preferred operation modes based on driving conditions through a lever moving unit and driving force mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a joystick type gear shift lever is used to allow forward and backward movement for gear selection, then the gear shift operation is achieved, but a large space is required and the lever may interfere with surrounding components
Solution Approach 1:
The patent implements a mode switch that dynamically changes the gear shift lever's operation mode between joystick type and rotary type. This allows the system to adapt its movement characteristics based on driving conditions, resolving the space conflict by enabling compact rotary operation when space is limited while preserving joystick operation when needed
2Adaptability or versatility
If a single transmission performs both manual gear shift operation and automatic gear shift operation, then the transmission functionality is improved, but the device complexity increases
Solution Approach 1:
The patent makes the gear shift lever universal by enabling it to perform both manual gear selection (through joystick and rotary modes) and automatic gear shift operation (through cable connection to transmission). This multi-functionality approach allows a single lever structure to handle multiple transmission modes without requiring separate control mechanisms, thus improving versatility while controlling complexity
3Ease of operation
If various operation modes are provided to allow driver selection based on driving conditions, then driver convenience is improved, but the control system complexity increases
Solution Approach 1:
The patent implements a dynamic mode switching system that can change the gear shift lever's operational characteristics (joystick mode, rotary mode, automatic mode) based on driving conditions and driver selection. This dynamic adaptability provides multiple operation modes for driver convenience while using a single integrated control system rather than multiple separate systems
Solution Approach 2:
The system includes automatic gear shift functionality that can operate autonomously based on vehicle speed and transmission requirements, reducing the burden on the driver. The mode switch automatically enables appropriate operation modes, providing self-service capabilities that enhance convenience without requiring complex manual intervention
Data Source
AI summary
An automotive transmission is provided that allows a driver to select a gear stage. The automotive transmission includes a knob and a lever that is vertically movable from a first position to a second position. A lever moving unit is coupled to the lever and a driving unit generates a driving force to move the lever moving unit. Additionally, the lever moving unit moves the lever between the first position, which is for operating the lever in a first gear shift sensing mode, and the second position, which is for operating the lever in a second gear shift sensing mode, in accordance with the driving force generated by the driving unit.