Transmission Actuator Mounting Structure for Reversible Shift Actuation
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Solution Overview
Problem
Existing automatic vehicle driving devices struggle to accommodate various vehicle types, particularly right-hand and left-hand drive vehicles, due to limited adjustability and asymmetrical actuator configurations, which restrict the range of shift lever movement and require separate devices for different vehicle configurations.
Innovation Solution
A mounting structure for the transmission actuator with a lock mechanism allowing 180-degree attitude reversal and a height adjustment mechanism, enabling symmetrical lateral orientation and adjustable height to accommodate different shift lever positions across vehicle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the longitudinal arm unit is supported through a connecting unit that can slide forward and backward, then the movable range is compensated, but the height size and whole size of the device become large
Solution Approach 1:
The patent applies dynamics by replacing the sliding connecting unit with a rotatable joint. The longitudinal arm unit is connected to the lateral arm unit through a joint that allows rotational movement, enabling the longitudinal arm unit to achieve its required movable range through rotation rather than translation. This dynamic motion mechanism reduces the height size and overall dimensions of the device compared to a sliding mechanism.
Solution Approach 2:
The patent inverts the motion mechanism from linear sliding to rotational movement. Instead of using a connecting unit that slides forward and backward to compensate for movable range limitations, the invention uses a rotatable joint where the longitudinal arm unit rotates to achieve the necessary range of motion. This inversion of the motion principle reduces the device's height size and overall volume.
2Reliability
If separate automatic vehicle driving devices are prepared for right-hand drive and left-hand drive vehicles, then each device can be optimized for its specific configuration, but the device complexity and number of components increase
Solution Approach 1:
The patent implements universality by designing a single actuator that can function for both right-hand drive and left-hand drive vehicles. The actuator includes a lateral arm unit and a longitudinal arm unit that can be arranged in different configurations. By providing both first and second arrangements, the same actuator design can be used across different vehicle types, reducing the need for separate devices while maintaining optimization for each configuration.
Solution Approach 2:
The patent applies segmentation by dividing the actuator into independent functional units: the lateral arm unit and the longitudinal arm unit. These segmented components can be independently arranged and configured. The lateral arm unit moves in the vehicle width direction, while the longitudinal arm unit moves in the vehicle longitudinal direction, allowing flexible assembly for different vehicle types without requiring completely separate devices.
Data Source
AI summary
An L-shaped bracket (151) is fixed to a top end portion of a rack shaft (141) of a selecting actuator (133) of a transmission actuator unit (131) through a rotatable joint (152). An actuator housing (161) of a shifting actuator (134) is supported on a mounting surface (151a) of the L-shaped bracket (151) so as to be attachable to and detachable from the mounting surface (151a) through a lock mechanism (154) (a lock pin (155) and a lock hole (162a)). The shifting actuator (134) can be mounted with the shifting actuator (134) being reversed 180 degrees.