Claytex specialises in modelling and simulation of complex systems and providing consulting services, training and software solutions. We focus on simulation for systems engineering and understanding the interactions of systems with their environment.
Everything we do at Claytex is about modelling and simulation. Systems Engineering is a very broad topic and here at Claytex we focus on the modelling and simulation of the systems to understand their behaviour and dynamics. Our work covers multiple industries and domains such as vehicle dynamics and pwoertrain, energy management of buildings, flight dynamics of drones, thermal management and extends into the virtual testing of ADAS and autonomous vehicles with physics based sensor models. We help our customers understand their designs to make better products, faster.
We develop simulation solutions using the open standards of Modelica, FMI, OpenSCENARIO and OpenDRIVE; distribute systems engineering solutions from Dassault Systemes, rFpro and specialist Modelica library developers. Our portfolio of tools includes Dymola, Reqtify, rFpro as well as our own software products including the VeSyMA suite of solutions. We also build bespoke simulation tools for specialist applications.

Overall vehicle performance optimization is the main target in race car and road hypercar development. Considering the complexity of current vehicles, a holistic approach to analyse the interaction of vehicle dynamics, powertrain cooling system dynamics, brake cooling and human drivers in the same simulation can be vital to maximizing the overall performance (Bouvy et al, 2012). This article is a continuation of a previous article written by Dallara and Claytex (“Race Car Cooling System Model for Real Time use in a Driving Simulator”, Stellato et al, 2023). The previous collaboration describes the implementation of a 1D cooling system model integrated with a vehicle multibody model to be used in the Dallara dynamic driving simulator with human drivers. This collaboration has continued into a new phase, where Dallara has developed a model to optimize the brake cooling of its vehicles, with Claytex’s VeSyMA suite use for the auxiliary vehicle systems and code compilation. The model has been validated through comparison with real data of an existing vehicle, showing an acceptable accuracy to size a race car braking system and for a refined assessment of the global vehicle performance on the driving simulator.

One of the most popular ways of measuring signals for various components in vehicle on durability tracks will be Road Load Data Acquisition (RLDA) which gains load data through accelerated customer usages tests on either proving ground or field, using an instrumented vehicle. However, under the current circumstances, not only does a vehicle development cycle get shorter but also new mobility concepts keep being developed, a methodology is needed to cope with overall durability assessment in advance of a physical prototype being made for testing. In this study, this virtual testing methodology will be called Virtual RLDA. n this study, one of the most well-known electric vehicles in market is from Hyundai, with 2 in-wheel motors in rear which was chosen as the target vehicle. First, 6 major sub-systems such as vehicle controller, suspension, hydraulic brake, motor, battery and thermal management are modelled and validated separately, then they are integrated into one large vehicle model as a part of establishing the Virtual RLDA Platform which will be used for overall vehicle level durability development in early stage in Hyundai Kia Motor Company (HKMC).