{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11268473","patent":{"patent_number":"US-11268473","title":"Systems and methods for reducing release of undesired evaporative emissions in plug-in hybrid electric vehicles","assignee":null,"inventors":[],"filing_date":"2019-11-25T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["B60W","G05D","B60W"],"num_claims":20,"abstract":"Methods and systems are provided for reducing a potential for release of undesired evaporative emissions to atmosphere for vehicles that rely primarily on an electric-only mode of operation for vehicle propulsion. In one example, a method may include in response to a vehicle-on request via a driver of a vehicle, maintaining off a fuel pump that supplies a fuel to a set of port fuel injectors, and re-pressurizing the set of port fuel injectors via operation of the fuel pump based on a predicted engine-start request during a drive cycle following the vehicle-on request. In this way, escape of fuel from pressurized port fuel injectors may be reduced or avoided during engine-off conditions, which may reduce opportunity for release of undesired evaporative emissions to atmosphere."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods for reducing release of undesired evaporative emissions in plug-in hybrid electric vehicles","description":"Methods and systems are provided for reducing a potential for release of undesired evaporative emissions to atmosphere for vehicles that rely primarily on an electric-only mode of operation for vehicl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11268473","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11268473","citation_suggestion":"Patentable. \"Systems and methods for reducing release of undesired evaporative emissions in plug-in hybrid electric vehicles\" (US-11268473). https://patentable.app/patents/US-11268473","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11268473","json":"https://patentable.app/api/llm-context/US-11268473","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:36:05.023Z"}