Adjustable Vehicle Suspension for Real-Time Damping Control

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Solution Overview

Problem

Existing vehicle suspension systems require manual adjustments at each shock absorber location, which are time-consuming and impractical for real-time adjustments based on terrain and payload changes, especially in off-road conditions.

Innovation Solution

A vehicle suspension system with electronically controlled adjustable shock absorbers and a controller that allows for real-time adjustments based on inputs from sensors and user interface, enabling dynamic damping control and driveline torque management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual adjustments are made at each shock absorber location, then the suspension can be adjusted for different terrain and payload conditions, but the adjustment process becomes time-consuming and impractical for real-time changes

Engineering Contradiction:
Improvesuspension adjustment capabilityVSAvoidadjustment time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical adjustment mechanisms with an electronically controlled system. Electric motors automatically adjust the shock absorbers based on sensor inputs and controller commands, eliminating the need for operators to manually access and adjust each shock absorber location. This substitution of mechanical adjustment with automated electronic control resolves the contradiction by maintaining full suspension adaptability while reducing adjustment time to near-zero for real-time terrain and payload changes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The suspension system performs self-adjustment through integrated sensors that detect terrain conditions and payload changes, with a controller that automatically commands the electric motors to adjust shock absorber settings. The system serves itself by continuously monitoring its own state and making appropriate adjustments without external intervention, thereby maintaining adaptability while eliminating the time loss associated with manual adjustment operations.

Inventive Principle:
Principle #25Self-service

2Extent of automation

If electronically controlled adjustable shock absorbers are implemented, then real-time adjustments can be made based on sensor inputs, but the device complexity increases

Engineering Contradiction:
Improvedamping control automationVSAvoidsuspension system complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The controller serves multiple functions: it processes sensor data from various sources, determines optimal damping settings based on terrain and payload conditions, commands the electric motors to adjust shock absorbers, and integrates with the driveline torque management system. By consolidating these diverse functions into a single multi-functional controller, the patent achieves high automation extent while minimizing the increase in device complexity that would result from multiple separate control units.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the suspension control system with the driveline torque management system under a unified controller architecture. This merging of previously separate systems allows for integrated control of both suspension damping and driveline torque based on common sensor inputs, thereby achieving comprehensive automation while reducing overall system complexity through consolidation rather than proliferation of separate control mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250276682A1Vehicle having adjustable suspension
Publication Date: 2025.09.04 POLARIS IND INC
  • US20250276682A1 patent drawing
  • US20250276682A1 patent drawing
  • US20250276682A1 patent drawing

AI summary

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping profile.