Sistema Volvo Codriver

Systems for Collision Avoidance in Road Vehicles
Final IVSS Project Report

The IVSS Programme
The IVSS programme was set up to stimulate research and development for the road safety of the future. The end result will probably be new, smart technologies and new IT systems that will help reduce the number of traffic-related fatalities and serious injuries. IVSS projects shall meet thefollowing three criteria: road safety, economic growth and commercially marketable technical systems.

• Injury prevention • Crash avoidance
IVSS

• Business growth
on a global market

• Product excellence • Premium requirements • Cost

Three interacting components - for better safety, growth and competitiveness: The human being Preventive solutions based on the vehicle’s most importantcomponent. The road Intelligent systems designed to increase security for all road users. The vehicle Active safety through pro-active technology.

Title of the report: Systems for Collision Avoidance in Road Vehicles Author: Jonas Jansson, Andreas Eidehall, Jochen Pohl Reference number: Publication date: 2007-12-12 Contact person: Andreas Eidehall, aeidehal@volvocars.com, Avd 96260, PV4B1, 40531Göteborg. Tel.: 46-31-596635

Table of contents
1. 2. Introduction............................................................................................................... 7 Subproject 1: Collision Mitigation by Braking ...................................................... 7
2.1. 2.2. 2.3. 2.4. 2.5. Projectoverview.....................................................................................................7 Connection to IVSS focus areas ...............................................................................8 Conclusions ...........................................................................................................8 Referenser..............................................................................................................9 Publications...........................................................................................................9

3.

Subproject 2: Collision Avoidance by Steering .................................................... 10
3.1. 3.2. 3.3. Project overview...................................................................................................10 Connection to IVSS focus areas.............................................................................12 Publications .........................................................................................................12

4.

Outlook and future work ........................................................................................ 14

1.

Introduction

Collision Avoidance systems, as a subsequent step to collisionmitigation, are one of the great challenges in the area of active safety for road vehicles. Collision mitigation functions usually intervene when a collision is unavoidable, and actuate e.g. the brake system in order to reduce the consequences of a collision by reducing the impact speed. For collision mitigation functions it is generally true that the safety benefit becomes larger when the impactspeed reduction is larger. The mitigational effect is here achieved by reducing the amount of collision energy by reducing the collision speed. The fundamental mechanism for collision avoidance is, however, different, as here the trajectory of the involved vehicle(s) is changed in way to avoid an impact. Principally, this can be done in two separate ways, which are addressed within the twosubprojects Collision Mitigation by Braking (CMbB) and Collision Avoidance by Steering (CAbS). For Collision Mitigation Systems a special situation has been identified where Collision Avoidance potential exist, when the motion of surrounding traffic is studied and taken into account in the decision making. In that manner, CMbB will judge a threat situation even from an "escape path" point of view an...