Power Door Presenter Actuator Integration
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Solution Overview
Problem
Existing power door actuation systems in vehicles face challenges such as increased weight, cost, and reduced space due to multiple door actuation systems, and they struggle with opening doors in jammed or emergency conditions without manual handles, particularly when the main power source fails.
Innovation Solution
A compact power swing door actuation system with a power door presenter assembly mounted to either the vehicle door or body, featuring a motor and extensible member that moves the door from a closed to a partially open position, allowing manual operation, and utilizing a backup energy source for emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple door actuation systems are equipped in vehicles, then door opening functionality is improved, but vehicle weight increases
Solution Approach 1:
The patent combines the power door actuator and power door presenter into a single integrated assembly mounted to the door. This merging of functions reduces the number of separate components, thereby reducing overall weight while maintaining both automatic door opening and emergency manual assistance capabilities
Solution Approach 2:
The integrated power door assembly serves multiple functions: it acts as both a power door actuator for automatic door opening and a power door presenter for emergency manual assistance. This multi-functionality eliminates the need for separate systems, reducing weight while improving adaptability
2Adaptability or versatility
If multiple door actuation systems are equipped in vehicles, then door opening functionality is improved, but manufacturing cost increases
Solution Approach 1:
The patent integrates the power door actuator and power door presenter into a single assembly, reducing the number of parts that need to be manufactured, inventoried, and assembled. This consolidation lowers manufacturing complexity and cost while maintaining comprehensive door opening functionality
3Adaptability or versatility
If multiple door actuation systems are equipped in vehicles, then door opening functionality is improved, but available space in door cavity is reduced
Solution Approach 1:
The patent combines multiple actuation systems into a single integrated power door assembly, significantly reducing the space required in the door cavity. The unified design eliminates the need for separate mounting spaces for individual actuators and presenters
4Reliability
If power swing door actuator is used to open door in emergency conditions, then door opening capability is improved, but energy consumption increases
Solution Approach 1:
The power door presenter provides partial door opening action in emergency conditions, moving the door only to a presented position rather than fully opening it. This partial action requires significantly less energy from the backup power source while still enabling manual door opening by rescue personnel
5Volume of moving object
If compact power door presenter assembly is designed, then space requirement is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent nests the power door presenter components within the power door actuator housing, creating a compact integrated assembly. The extensible member of the presenter is housed within the actuator assembly, maximizing space efficiency while maintaining manufacturability through modular nested components
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
The system reduces weight and cost while providing efficient door opening in normal and emergency conditions, overcoming high torque requirements and space constraints, and enabling manual operation without external handles.
Implementation Method 1
a motor having an output shaft extending along a second axis in generally parallel relation to the first axis, the output shaft being operably configured to drive the extensible member
Data Source
AI summary
A power door actuation system for a vehicle door includes a power-operated presenter actuator mounted to one of the vehicle body and the vehicle door. The power-operated presenter actuator includes a motor and an extensible member being translatable between a retracted position and an extended position along a first axis in response to selective actuation of the motor. The motor has a motor shaft that extends along a second axis that is substantially parallel to the first axis along which the extensible member translates. Powered movement of the extensible member between its retracted and extended positions results in corresponding movement of the vehicle door between closed and presented positions.