Multi-Panel Tailgate Unlatch Control Around Towing Apparatus
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Solution Overview
Problem
Multi-panel tailgates on vehicles, such as pickup trucks, risk collision with towing apparatuses when the inner gate panel pivots downward, causing damage, and existing solutions that prevent unlatching when a towing apparatus is detected limit the utility of the vehicle by forcing the tailgate to remain closed.
Innovation Solution
A tailgate deactivation system that detects the presence of an object in a hazard space using sensors and inhibits power flow to the inner gate panel unlatching actuator when a towing apparatus is attached, allowing the primary gate panel to be opened while preventing the inner panel from pivoting into the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the inner gate panel is allowed to pivot freely when the primary gate panel is opened, then the multi-panel tailgate provides enhanced accessibility and functionality, but the inner gate panel may collide with towing apparatuses causing damage
Solution Approach 1:
A sensor acts as an intermediary between the gate panel system and the control system. The sensor detects the presence of towing apparatuses in the hazard space and transmits this information to the controller, which then selectively disables the inner gate panel unlatching actuator. This intermediary detection mechanism enables the system to adapt behavior based on external conditions without direct mechanical intervention.
Solution Approach 2:
The system dynamically adjusts the functionality of the inner gate panel based on detected conditions. When a towing apparatus is detected in the hazard space, the controller selectively disables power to the inner gate panel unlatching actuator, preventing collision. When no towing apparatus is present, the inner gate panel operates normally, providing enhanced accessibility. This dynamic adaptation resolves the contradiction between safety and functionality.
2Object-affected harmful factors
If power is inhibited to the inner gate panel unlatching actuator when a towing apparatus is detected, then collision damage is prevented, but the primary gate panel functionality is maintained while the inner panel remains restricted
Solution Approach 1:
The tailgate system is segmented into two independently controllable parts: the primary gate panel and the inner gate panel. The control system can selectively disable only the inner gate panel unlatching actuator while leaving the primary gate panel fully operational. This segmentation allows the system to prevent collision damage to the inner panel while maintaining full access to the truck bed through the primary panel, resolving the contradiction between safety and operational convenience.
3Reliability
If a sensor system is implemented to detect towing apparatuses in the hazard space, then selective deactivation of the inner gate panel is enabled, but the device complexity increases
Solution Approach 1:
A sensor serves as an intermediary detection device that automatically identifies the presence of towing apparatuses in the hazard space. The sensor connects to a controller that processes this information and selectively controls power to the inner gate panel unlatching actuator. This automated intermediary system improves reliability by consistently preventing collisions while managing complexity through dedicated detection and control components rather than manual intervention.
Solution Approach 2:
The system performs self-service by automatically detecting towing apparatuses and adjusting its own operation without user intervention. The sensor continuously monitors the hazard space, and the controller automatically disables or enables the inner gate panel unlatching actuator based on detected conditions. This self-service capability improves collision prevention reliability while minimizing the need for additional user-facing controls or complex manual procedures.
Data Source
AI summary
A tailgate deactivation system prevents collisions between a multi-panel tailgate comprising a primary gate panel and an inner gate panel, and an object, such as a towing apparatus. The system detects the object in a hazard space that the inner gate panel would occupy when the primary gate panel is in an open position and the inner gate panel is unlatched. In response to detecting the object in the hazard space and the primary gate panel being unlatched, the inner gate panel is disabled from unlatching by interrupting power flow to an unlatching actuator of the inner gate panel. Several technologies are described for detecting the object in the hazard space.