Control Pedal Assembly Communicating Portion Foreign Matter Release
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Solution Overview
Problem
Existing vehicle control pedal assemblies face challenges in preventing foreign matter from accumulating between the mounting base and the accelerator pedal, which can affect the operability of the accelerator pedal, especially in harsh conditions like strong winds.
Innovation Solution
A control pedal assembly design featuring a pedal bracket secured to the vehicle body with a housing space, a swingably supported control pedal, and an urging device, along with a communicating portion between the control pedal and the pedal bracket to release foreign matter to the outside, ensuring the pedal's operability by preventing accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a pedal bracket with housing space is used to prevent foreign matter ingress, then the protection against foreign matter is improved, but the space between control pedal and pedal bracket becomes sealed and foreign matter accumulates inside
Solution Approach 1:
The patent applies local quality by creating a specific communicating portion at a defined location (rear of support shaft relative to vehicle body, between control pedal and pedal bracket) rather than providing uniform protection throughout. This localized opening allows foreign matter to be released from the housing space while maintaining protection in other areas, resolving the contradiction between sealed protection and foreign matter accumulation.
Solution Approach 2:
The communicating portion acts as an intermediary element between the housing space and the external environment. It mediates between the need for protection (keeping foreign matter out) and the need for ventilation (allowing foreign matter to escape), providing a controlled passage that resolves the contradiction by allowing selective passage of foreign matter.
2Reliability
If the space between control pedal and pedal bracket is completely sealed, then foreign matter accumulation is prevented, but the operability deteriorates due to pressure buildup and lack of ventilation
Solution Approach 1:
Rather than providing uniform sealing or uniform ventilation, the patent applies local quality by creating a specific communicating portion at a defined location. This localized opening provides just enough ventilation to maintain operability while preventing excessive foreign matter ingress, resolving the contradiction between sealed protection and operational reliability.
3Object-affected harmful factors
If convex-shaped surfaces are used to release foreign matter, then the foreign matter release function is improved, but the structural complexity increases
Solution Approach 1:
The patent extracts the foreign matter release function from complex surface geometries and implements it through a simple communicating portion (opening or passage). Instead of relying on complicated convex shapes to actively release foreign matter, the design simply provides a direct pathway for foreign matter to escape, significantly reducing structural complexity while maintaining the foreign matter release function.
Solution Approach 2:
Instead of using complex convex surfaces to actively push foreign matter out, the patent inverts the approach by creating a communicating portion that passively allows foreign matter to escape. This inversion from active to passive mechanism simplifies the structure while achieving the same functional outcome.
Data Source
AI summary
A control pedal assembly includes a pedal bracket, a control pedal, an urging device and a communicating portion. The pedal bracket is secured to a vehicle body and has a housing space. The control pedal is swingably supported by a support shaft disposed in the housing space of the pedal bracket. The urging device is to urge the control pedal toward a rear of a vehicle body. The communicating portion is provided at a rear of the support shaft relative to the vehicle body between the control pedal and the pedal bracket to connect a space above the control pedal and a space below the control pedal.