{"id":48348,"date":"2025-11-13T16:40:37","date_gmt":"2025-11-13T15:40:37","guid":{"rendered":"https:\/\/www.avsimulation.com\/?p=48348"},"modified":"2025-11-13T16:40:40","modified_gmt":"2025-11-13T15:40:40","slug":"hil-more-reliable","status":"publish","type":"post","link":"https:\/\/www.avsimulation.com\/en\/hil-more-reliable\/","title":{"rendered":"Hardware-in-the-loop : How to make your vehicle testing more reliable"},"content":{"rendered":"\n<p>In the automotive industry, every line of embedded code, every actuator, and every safety-critical function must go through rigorous testing and validation. As complexity increases, so does the need for tools that ensure reliable, repeatable, and realistic test environments. This is where Hardware-in-the-Loop (HIL) comes in.<\/p>\n\n\n\n<p>HIL is no longer just a test bench for simple I\/O validation \u2014 it has become a strategic enabler in modern vehicle development. When paired with a high-fidelity simulation platform like SCANeR\u2122, it allows OEMs and Tier-1 suppliers to bring real hardware into realistic driving scenarios, without physical risks or high testing costs.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What is Hardware-in-the-Loop (HIL) testing?<\/h2>\n\n\n\n<p>Hardware-in-the-Loop testing connects a real electronic control unit (ECU) or sensor to a real-time simulation that emulates the vehicle, road, environment, and even other road users.<\/p>\n\n\n\n<p>The ECU receives inputs from the simulation (speed, objects detected, traffic conditions) and responds as it would in a real vehicle \u2014 for example, by issuing a braking command or triggering a driver alert. This closed-loop interaction allows engineers to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Detect integration issues early<br><\/li>\n\n\n\n<li>Reduce the need for physical prototypes<br><\/li>\n\n\n\n<li>Test edge cases and critical failures<br><\/li>\n\n\n\n<li>Automate regression testing under controlled conditions<\/li>\n<\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Why HIL is now essential<\/h2>\n\n\n\n<p>As modern vehicles evolve into software-defined platforms (SDVs), traditional testing methods fall short. ADAS functions, EV powertrains, over-the-air updates \u2014 all require continuous, scalable validation.<\/p>\n\n\n\n<p>You can\u2019t rely solely on road testing for every possible case \u2014 it\u2019s expensive, risky, and often impossible to reproduce rare or dangerous situations. HIL enables safe, repeatable, real-time validation of embedded systems, making it a cornerstone of agile V&amp;V pipelines.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">The AVSimulation approach: SCANeR\u2122 at the core of your HIL workflow<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.avsimulation.com\/en\/scaner\/\">SCANeR\u2122<\/a> is a modular, open simulation platform designed for high-performance, real-time applications \u2014 perfectly suited for HIL integration.<\/p>\n\n\n\n<p>It supports native connectivity with major HIL platforms like dSPACE, NI, RTMaps, and other real-time operating systems or custom setups.<\/p>\n\n\n\n<p>With SCANeR\u2122, you can provide your ECU under test with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Accurate vehicle dynamics models<br><\/li>\n\n\n\n<li>Realistic road environments, traffic and weather<br><\/li>\n\n\n\n<li>High-fidelity virtual sensors (camera, radar, lidar)<br><\/li>\n\n\n\n<li>Photorealistic 3D scenes powered by Unreal Engine<\/li>\n<\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The system ensures synchronized I\/O signals that meet real-time constraints, enabling safe, reactive closed-loop operation.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Use case: ADAS ECU validation with SCANeR\u2122 and HIL<\/h2>\n\n\n\n<p>Let\u2019s take the example of an Automatic Emergency Braking (AEB) ECU:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>A Euro NCAP test scenario is executed in SCANeR\u2122 (e.g., pedestrian crossing unexpectedly)<br><\/li>\n\n\n\n<li>Virtual sensors detect the obstacle and send signals to the physical ECU<br><\/li>\n\n\n\n<li>The ECU processes the data and triggers a braking command<br><\/li>\n\n\n\n<li>SCANeR\u2122 simulates vehicle reaction and feedback<br><\/li>\n\n\n\n<li>Timing, braking distance, and decision-making are analyzed in detail<br><\/li>\n<\/ol>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>This test can be repeated with different weather, traffic, or sensor conditions, ensuring comprehensive validation \u2014 without ever putting a real vehicle or person at risk.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Beyond ADAS: HIL use cases across domains<\/h2>\n\n\n\n<p>HIL testing extends well beyond ADAS. It is widely used to validate:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Electric powertrain control units<br><\/li>\n\n\n\n<li>Thermal management systems<br><\/li>\n\n\n\n<li>Intelligent lighting systems such as adaptive headlights<br><\/li>\n\n\n\n<li>Diagnostic, cybersecurity and safety logic (SOTIF, ISO 26262)<br><\/li>\n<\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>As vehicle functions become more software-centric, HIL becomes essential to simulate system interactions at both the hardware and software level, especially for SDV architectures.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What makes a reliable HIL environment?<\/h2>\n\n\n\n<p>To make the most of HIL testing, your setup should include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Accurate vehicle dynamics models (<a href=\"https:\/\/www.avsimulation.com\/en\/applications\/vehicle-dynamics\/\">see our vehicle dynamics solutions<\/a>)<br><\/li>\n\n\n\n<li>Reliable real-time synchronization<br><\/li>\n\n\n\n<li>Scenario automation via Python, XML or APIs<br><\/li>\n\n\n\n<li>Full observability of inputs, outputs, and internal states<br><\/li>\n<\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>SCANeR\u2122 is designed with these needs in mind, offering a robust, scalable foundation for real-time closed-loop testing across all vehicle domains.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion: a strategic tool for modern automotive validation<\/h2>\n\n\n\n<p>Hardware-in-the-Loop testing is much more than a development step \u2014 it\u2019s a validation accelerator. It helps detect faults earlier, improve robustness, reduce physical test campaigns, and gain confidence in critical embedded functions.<\/p>\n\n\n\n<p>Combined with SCANeR\u2122, it becomes a powerful pillar in your virtual testing strategy \u2014 enabling faster development cycles, safer designs, and better engineering decisions.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the automotive industry, every line of embedded code, every actuator, and every safety-critical function must go through rigorous testing and validation. As complexity increases, so does the need for tools that ensure reliable, repeatable, and realistic test environments. This is where Hardware-in-the-Loop (HIL) comes in. HIL is no longer just a test bench for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48356,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topics":[],"class_list":["post-48348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications"],"_links":{"self":[{"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/posts\/48348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/comments?post=48348"}],"version-history":[{"count":3,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/posts\/48348\/revisions"}],"predecessor-version":[{"id":48354,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/posts\/48348\/revisions\/48354"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/media\/48356"}],"wp:attachment":[{"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/media?parent=48348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/categories?post=48348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/tags?post=48348"},{"taxonomy":"topics","embeddable":true,"href":"https:\/\/www.avsimulation.com\/en\/wp-json\/wp\/v2\/topics?post=48348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}