The new rules will apply in the European Union (EU) to all new passenger cars and vans from 29 November 2026, and to all new light commercial vehicles from 29 November 2027, before being extended to trucks and buses in 2028. Manufacturers from outside the EU will have to comply with the regulations if they want to sell new vehicles on the EU market.
At the same time, public awareness of air quality and microplastics is increasing. Global Google searches for microplastics have surged by 93%* over the past year, and studies indicate that particles from tire wear account for around 28% of microplastics worldwide. Euro 7 is the first European emissions standard to explicitly focus on sources other than exhaust gases, such as brake and tire wear, in addition to traditional exhaust emissions, and it also extends compliance with emissions standards to 10 years or 200,000 kilometers for many vehicle categories.
"Compliance with Euro 7 will depend significantly on advanced electronics and real-time vehicle monitoring technologies," says Mark Patrick, technical content manager at Mouser Electronics. “As manufacturers approach their 2026 and 2027 targets, we anticipate increased design activity focused on accurate detection of exhaust and non-exhaust emissions, robust energy management for emissions systems, and onboard monitoring solutions that maintain accuracy over significantly longer periods.”
According to Mouser, three areas are likely to receive particular attention as engineering teams adapt existing platforms and develop new models for Euro 7 regulations:
Exhaust gas control and aftertreatment: increased use of high-precision sensors for NOx, particulate matter, pressure and temperature, as well as automotive microcontrollers and integrated power management circuits, to maintain emissions performance under broader real-world driving test conditions.
Brake and tire particulate emissions: development of electronics for measuring and managing brake dust and tire wear, from on-vehicle detection and control to testing and measurement systems for validating new materials and braking concepts.
Battery durability and on-board monitoring: more sophisticated monitoring of battery status, energy flows, and system diagnostics in hybrid and electric vehicles, thanks to Euro 7 regulations, which introduce minimum performance requirements for traction batteries over defined mileage and time periods.
“Engineers now have to design electronic components that not only meet stricter monitoring and particle requirements, but also maintain specifications for much longer under harsh conditions,” Patrick adds. “This presents challenges in terms of component selection, thermal management, and durability, and is an area where access to a broad (and up-to-date) range of automotive-grade components and design resources is becoming increasingly valuable.”
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