Vehicle Motion Control System for Payload Acceleration

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Solution Overview

Problem

Existing vehicle designs fail to effectively manage the acceleration of payload supports relative to the frame, leading to inefficient energy transfer and potential instability during forward acceleration.

Innovation Solution

A vehicle design featuring a frame with a motion control system that connects the payload support non-linearly to the frame, ensuring the payload support accelerates at a rate no less than the rear axle support during forward acceleration, utilizing a combination of rigid links and energy management systems to maintain equilibrium and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the payload support is rigidly connected to the frame, then the structural stability is improved, but the energy transfer efficiency during acceleration deteriorates

Engineering Contradiction:

Improvestructural stabilityVSAvoidenergy transfer efficiency

Core Design Contradiction:

Stability of the object's compositionVSLoss of energy

Solution Approach 1:

The patent applies a motion control system that enables dynamic adjustment of the payload support's connection to the frame. During acceleration phases, the system allows controlled movement between the payload support and frame, optimizing energy transfer while maintaining stability during steady-state operation. This dynamic connectivity resolves the contradiction by adapting the rigid connection to varying operational conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the mechanical parameters of the connection between payload support and frame through the motion control system. By adjusting the degree of freedom, stiffness, and coupling characteristics of the connection based on operational state, the system optimizes both stability and energy transfer efficiency, transforming a static rigid connection into an adaptive dynamic connection.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the payload support accelerates faster than the rear axle support, then the energy transfer efficiency is improved, but the vehicle stability deteriorates

Engineering Contradiction:

Improveenergy transfer efficiencyVSAvoidvehicle stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The motion control system incorporates feedback mechanisms that monitor the acceleration rates of both the payload support and rear axle support. Based on this feedback, the system adjusts the motion control parameters in real-time to maintain synchronized acceleration between these components, ensuring energy transfer efficiency while preventing instability caused by differential acceleration.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces traditional rigid mechanical connections with a smart motion control system that uses actuators, sensors, and control algorithms. This substitution allows precise control of the payload support's motion relative to the frame, enabling synchronized acceleration with the rear axle support while maintaining vehicle stability through active control rather than passive mechanical constraints.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If a rigid connection is used between payload support and frame, then the manufacturing simplicity is improved, but the adaptability during acceleration deteriorates

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidadaptability during acceleration

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The invention segments the connection system into distinct functional components: the frame, the payload support, and the motion control system in between. This segmentation allows each component to be manufactured independently with standard processes, while the motion control system provides the adaptability during acceleration phases. The modular approach maintains manufacturing simplicity while enabling dynamic adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The motion control system acts as an intermediary between the rigid frame and the payload support. This intermediary layer absorbs the contradiction by providing controlled movement capabilities that adapt to acceleration conditions, while allowing the frame and payload support to be manufactured as separate, standardized components. The intermediary enables adaptability without complicating the manufacturing of individual components.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11993338B2Vehicle

Publication Date: 2024.05.28 VOSS DARRELL W

AI summary

A vehicle (300), comprising: a frame (310) comprising a head tube (314) and a rear driven axle support (312); a motion control system; and a payload support (320) movably connected to the frame (310) via the motion control system such that the payload support (320) moves non-linearly relative to the frame (310), wherein the payload support (320) comprises a seat support, and in a first operating state of the vehicle (300), the motion control system, in response to a driven acceleration of the frame (310) in a forward direction, imparts a force onto the payload support (320) that accelerates the seat support (320) in the forward direction at an acceleration no less than an acceleration of the rear driven axle support (312) in the forward direction.