Rollover Protection Housing-Free Drive Unit
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Solution Overview
Problem
Existing rollover protection systems for motor vehicles require a housing that encases the rollover body and drive unit, increasing space usage, weight, and production costs, while compromising the strength of the vehicle shell structure.
Innovation Solution
A rollover protection system with a housing that does not encompass the rollover body, featuring an assembly-stable connection between the rollover body and drive unit, allowing direct power transmission and eliminating the need for a separate housing, thus reducing installation space and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a housing encases the rollover body and drive unit, then the rollover protection system can be handled and assembled as a structural unit, but the system takes up a considerable amount of space on the shell structure
Solution Approach 1:
The invention extracts and eliminates the housing component from the rollover protection system. The drive unit is designed to directly connect to the rollover body without requiring an enclosing housing, thereby removing the unnecessary structural element that consumed installation space while maintaining the functional integrity and assembly capability of the system.
2Ease of manufacture
If a housing encases the rollover body and drive unit, then the system can be handled as a structural unit, but the weight of the system increases
Solution Approach 1:
The housing is extracted and removed from the system design. The drive unit incorporates direct connection mechanisms that eliminate the need for a housing structure, thereby reducing the overall weight of the rollover protection system while maintaining structural integrity and ease of handling during assembly.
3Ease of operation
If receptacles are provided on the shell structure for the housing, then the rollover protection system can be installed, but the strength of the shell structure is compromised
Solution Approach 1:
The housing and its associated receptacles are extracted and removed from the system. The drive unit is designed to connect directly to the shell structure with minimized attachment requirements, thereby reducing the impact on shell structure strength while maintaining installation capability.
Solution Approach 2:
The connection system is segmented into minimal necessary attachment points. Instead of requiring large receptacles for a housing, the drive unit uses focused, localized connection points that minimize the disruption to the shell structure's overall strength while enabling proper installation.
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 achieves a compact, lightweight design with enhanced structural integrity, allowing for efficient rollover protection without additional housing, reducing the need for complex structural adaptations and lowering production costs.
Implementation Method 1
A spring system is generally used as the drive energy store for the drive unit, with the rollover body generally being prestressed in the rest position by the spring system
Data Source
Figure 1
Figure 2
AI summary
The system (1) has a rollover body (2) displaceable from a resting position into a rollover position. A drive unit (3) adjusts the body in a danger case from the resting position into the rollover position. The drive unit has a drive energy storage having drive energy required for adjusting the body. The body is connected with the drive unit over a housing (4) of the drive unit for assembly-stable arrangement of the body. A connection unit extends over a partial area of the body and/or the drive unit. A projection (6) is arranged in a retainer (7) extending over a partial area of the housing.