Enhancing Vehicle Aerodynamics with Deep Reinforcement Learning in Voxelised Models

TL;DR

This paper introduces a deep reinforcement learning approach using voxelised models to optimize vehicle aerodynamics, effectively handling complex design spaces and improving aerodynamic performance.

Contribution

It presents a novel DRL-based method employing voxelised models and PPO algorithm for vehicle aerodynamic optimization, addressing limitations of traditional methods.

Findings

Significant reduction in drag force achieved

Enhanced optimization efficiency demonstrated

Potential for improved vehicle fuel efficiency

Abstract

Aerodynamic design optimisation plays a crucial role in improving the performance and efficiency of automotive vehicles. This paper presents a novel approach for aerodynamic optimisation in car design using deep reinforcement learning (DRL). Traditional optimisation methods often face challenges in handling the complexity of the design space and capturing non-linear relationships between design parameters and aerodynamic performance metrics. This study addresses these challenges by employing DRL to learn optimal aerodynamic design strategies in a voxelised model representation. The proposed approach utilises voxelised models to discretise the vehicle geometry into a grid of voxels, allowing for a detailed representation of the aerodynamic flow field. The Proximal Policy Optimisation (PPO) algorithm is then employed to train a DRL agent to optimise the design parameters of the vehicle with respect to drag force, kinetic energy, and voxel collision count. Experimental results demonstrate the effectiveness and efficiency of the proposed approach in achieving significant results in aerodynamic performance. The findings highlight the potential of DRL techniques for addressing complex aerodynamic design optimisation problems in automotive engineering, with implications for improving vehicle performance, fuel efficiency, and environmental sustainability.