{"cited_by_count":153703,"description":"This cluster of papers encompasses a wide range of topics related to automotive engineering, fuel technology, and environmental impact. It covers areas such as common rail injectors, fuel emissions from diesel engines, vehicle diagnostics, energy efficiency in automotive systems, and the use of renewable energy in the automotive industry. Additionally, it explores the intersection of automotive engineering with sustainable agriculture and control systems for vehicles.","display_name":"Engine and Fuel Emissions","domain_id":"3","external_ids":{"openalex":"https://openalex.org/T13990","wikipedia":"https://en.wikipedia.org/wiki/Automotive_engineering"},"field_id":"22","id":"T13990","keywords":[{"display_name":"exhaust aftertreatment","id":"exhaust-aftertreatment","score":0.215,"url":"https://openalex.org/keywords/exhaust-aftertreatment"},{"display_name":"fuel injection system","id":"fuel-injection-system","score":0.5252,"url":"https://openalex.org/keywords/fuel-injection-system"},{"display_name":"diesel particulate filter","id":"diesel-particulate-filter","score":0.3219,"url":"https://openalex.org/keywords/diesel-particulate-filter"},{"display_name":"fuel injection","id":"fuel-injection","score":0.2285,"url":"https://openalex.org/keywords/fuel-injection"},{"display_name":"diesel exhaust aftertreatment","id":"diesel-exhaust-aftertreatment","score":0.2603,"url":"https://openalex.org/keywords/diesel-exhaust-aftertreatment"},{"display_name":"electronic fuel injection","id":"electronic-fuel-injection","score":0.6276,"url":"https://openalex.org/keywords/electronic-fuel-injection"},{"display_name":"catalytic converters","id":"catalytic-converters","score":0.2253,"url":"https://openalex.org/keywords/catalytic-converters"},{"display_name":"engine control unit","id":"engine-control-unit","score":0.4248,"url":"https://openalex.org/keywords/engine-control-unit"},{"display_name":"engine control systems","id":"engine-management-system","score":0.3243,"url":"https://openalex.org/keywords/engine-management-system"},{"display_name":"heavy-duty diesel engines","id":"heavy-duty-diesel-engines","score":0.2064,"url":"https://openalex.org/keywords/heavy-duty-diesel-engines"},{"display_name":"diesel fuel injection","id":"diesel-fuel-injection","score":0.3686,"url":"https://openalex.org/keywords/diesel-fuel-injection"},{"display_name":"fuel injectors","id":"fuel-injectors","score":0.3907,"url":"https://openalex.org/keywords/fuel-injectors"},{"display_name":"diesel oxidation catalyst","id":"diesel-oxidation-catalyst","score":0.3274,"url":"https://openalex.org/keywords/diesel-oxidation-catalyst"},{"display_name":"fuel system","id":"fuel-system","score":0.3069,"url":"https://openalex.org/keywords/fuel-system"},{"display_name":"air-fuel ratio control","id":"air-fuel-ratio-control","score":0.3827,"url":"https://openalex.org/keywords/air-fuel-ratio-control"},{"display_name":"motorcycle engine","id":"motorcycle-engine","score":0.2664,"url":"https://openalex.org/keywords/motorcycle-engine"},{"display_name":"on-board diagnostics","id":"on-board-diagnostics","score":0.2365,"url":"https://openalex.org/keywords/on-board-diagnostics"},{"display_name":"ignition system","id":"ignition-system","score":0.2047,"url":"https://openalex.org/keywords/ignition-system"},{"display_name":"fuel pump","id":"fuel-pump","score":0.3752,"url":"https://openalex.org/keywords/fuel-pump"},{"display_name":"engine torque","id":"engine-torque","score":0.2222,"url":"https://openalex.org/keywords/engine-torque"},{"display_name":"exhaust emissions reduction","id":"exhaust-emissions-reduction","score":0.2776,"url":"https://openalex.org/keywords/exhaust-emissions-reduction"},{"display_name":"common rail","id":"common-rail-system","score":0.6713,"url":"https://openalex.org/keywords/common-rail-system"},{"display_name":"fuel injection control","id":"fuel-injection-control","score":0.5391,"url":"https://openalex.org/keywords/fuel-injection-control"},{"display_name":"fuel supply system","id":"fuel-supply-system","score":0.2721,"url":"https://openalex.org/keywords/fuel-supply-system"},{"display_name":"common rail diesel engine","id":"common-rail-diesel-engine","score":0.2763,"url":"https://openalex.org/keywords/common-rail-diesel-engine"}],"legacy_keywords":["Common Rail Injectors","Fuel Emissions","Diesel Engine","Vehicle Diagnostics","Energy Efficiency","Environmental Impact","Automotive Technology","Sustainable Agriculture","Control Systems","Renewable Energy"],"openalex_id":"https://openalex.org/T13990","source_created_date":"2024-01-23T15:27:20","source_updated_date":"2026-10-17T03:02:00","subfield_id":"2203","url":"/topics/T13990","works_api_url":"https://api.openalex.org/works?filter=topics.id:T13990","works_count":65014,"label":"Engine and Fuel Emissions","provider":"openalex","revision":"1f93b13d988274e7","taxonomy_revision":"f050b5d4780b1289","title":"Engine and Fuel Emissions","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"38360314655689461","address_version":"morton4x16-v1","coordinates":[3,22,2203,13990],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}