Vehicle Engine Stop-Start Assembly Mounting Device
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Solution Overview
Problem
Existing assembly devices for the 'STOP and START' vehicle engine function face challenges such as lengthy installation times, reduced assembly line productivity, difficulty in maintenance, and inaccessibility for certain vehicle categories, leading to potential tilting and vibration issues.
Innovation Solution
The proposed assembly device includes a support plate with an indexing pin fixed to its rear face, an eyelet secured to the vehicle body structure, and a damping stud to absorb vibrations, allowing for secure and efficient mounting under the front fender, even after the vehicle's body structure is assembled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the support plate is fixed using multiple screwing elements on lugs, then the assembly is securely fixed to the body structure, but the assembly time increases and productivity decreases
Solution Approach 1:
The patent combines multiple fixing functions into a single indexing pin mechanism. The pin simultaneously provides positioning, securing, and vibration damping functions that were previously distributed across multiple screwing elements and lugs, thereby reducing assembly steps while maintaining fixing security.
Solution Approach 2:
The indexing pin serves multiple functions: it acts as a positioning element, a securing fastener, and a vibration damping component through the integrated damping stud. This multi-functionality eliminates the need for separate components, reducing assembly complexity and time.
2Adaptability or versatility
If the support plate is fixed behind the front fender, then the assembly can be installed on vehicles with assembled fenders, but the accessibility for assembly and maintenance deteriorates
Solution Approach 1:
The patent transitions from a lateral approach (accessing behind the fender from the side) to a vertical approach (accessing from above through the engine compartment). The indexing pin is inserted from the top, allowing assembly to be performed easily even when the fender is already assembled, thus maintaining accessibility while achieving versatility.
3Stability of the object's composition
If the support plate is fixed directly to the body structure, then the assembly is stable, but vibrations are transmitted to the STOP and START assembly
Solution Approach 1:
The damping stud acts as an intermediary element between the indexing pin and the body structure. This intermediate component absorbs and dampens vibrations while maintaining the secure connection, thus protecting the STOP and START assembly from harmful vibrations while preserving assembly stability.
Solution Approach 2:
The vibration damping function is built into the indexing pin assembly beforehand through the integrated damping stud. This pre-built cushioning protects the assembly from vibrations before they can be transmitted, rather than adding protective measures after vibration damage occurs.
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
This solution enables quicker and more ergonomic assembly, improves vibration resistance, and allows installation on all vehicle categories, including those with front fenders, while maintaining safety and reducing production costs.
Implementation Method 1
at least one damping stud intended to be interposed between said pin and said eyelet
Data Source
Figure 1~3(c)
Figure 4~6
Figure 7~10
AI summary
This device for assembling a motor vehicle automatic stop-start assembly (1, 2) on a body shell structure (3) of a vehicle comprises a mounting plate (40) for said assembly, and - at least one indexing peg (41) belonging to the mounting plate; - at least one eye intended to be secured to the body shell of said vehicle and able to accept said indexing peg (41), and - at least one damping block (42) intended to be interposed between said peg (41) and said eye.