Off-Road Drivable Area Mapping for Vehicle-Specific Routing

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Solution Overview

Problem

Routing vehicles in off-road areas, particularly in quarries and similar conditions, is challenging due to unpredictable obstacles like puddles and changing terrain, leading to potential vehicle damage and downtime.

Innovation Solution

A computer system that processes vehicle and map data to determine drivable areas and optimize routing trajectories for specific vehicles, considering factors like traction capability, weight, and surface conditions, while also allowing for simulation of map changes and obstacle removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If vehicles operate in off-road areas with unpredictable obstacles, then mission completion is possible, but vehicle damage and downtime risk increase

Engineering Contradiction:
Improvemission completionVSAvoidvehicle damage risk
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary mapping and drivable area determination before vehicle operation. Map data is obtained and processed in advance to identify traversable areas and obstacles, allowing the vehicle to follow pre-computed safe routes rather than reacting to obstacles in real-time, thus preventing damage while maintaining productivity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary system (computer system with processing circuitry) that processes map data and vehicle data to generate drivable area information. This intermediary layer filters out harmful obstacles and presents only safe navigation information to the vehicle operator or autonomous control system, mediating between the complex off-road environment and the vehicle

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If general routing is used in off-road areas, then navigation is simple, but vehicles may encounter impassable obstacles causing detours and downtime

Engineering Contradiction:
Improverouting simplicityVSAvoiddowntime due to detours
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system determines drivable areas specific to each vehicle type based on its characteristics (weight, traction capability, ground clearance). Instead of a single general route, the routing is locally optimized for each vehicle's capabilities, identifying traversable areas that match specific vehicle requirements while avoiding obstacles that would cause detours for that particular vehicle type

Inventive Principle:
Principle #3Local quality

3Power

If routing does not consider vehicle-specific characteristics, then routing computation is faster, but vehicles may be unable to traverse certain areas

Engineering Contradiction:
Improvecomputation speedVSAvoidvehicle terrain adaptability
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The drivable area determination is customized for each vehicle type by considering specific vehicle characteristics such as weight, traction capability, and ground clearance. The system processes vehicle data alongside map data to generate vehicle-specific drivable area maps, ensuring that routing recommendations are adapted to each vehicle's terrain capabilities while maintaining efficient computation through structured data processing

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250208633A1Mapping of off-road area
Publication Date: 2025.06.26 VOLVO AUTONOMOUS SOLUTIONS AB
  • US20250208633A1 patent drawing
  • US20250208633A1 patent drawing
  • US20250208633A1 patent drawing

AI summary

A computer system comprising processing circuitry is presented. The processing circuitry is configured to obtain vehicle data of a specific vehicle and obtain map data of a confined off-road area. The processing circuitry is further configured to determine drivable area data for the specific vehicle within the confined off-road area based on the vehicle data and the map data; and provide the drivable area data for routing of the specific vehicle within the confined off-road area.