首页>
外国专利>
LEAKAGE DIAGNOSIS SUPPLEMENT METHOD FOR FAILURE OF VACUUM PUMP USING ACTIVE PURGE PUMP AND LEAKAGE DIAGNOSIS SUPPLEMENT SYSTEM FOR FAILURE OF VACUUM PUMP USING ACTIVE PURGE PUMP
LEAKAGE DIAGNOSIS SUPPLEMENT METHOD FOR FAILURE OF VACUUM PUMP USING ACTIVE PURGE PUMP AND LEAKAGE DIAGNOSIS SUPPLEMENT SYSTEM FOR FAILURE OF VACUUM PUMP USING ACTIVE PURGE PUMP
展开▼
机译:主动泵的真空泵泄漏诊断方法及主动泵的泄漏诊断系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A leakage diagnosis supplement method for a failure of a vacuum pump using an active purge pump may include: determining whether or not the vacuum pump mounted on a vent line between a canister and an atmosphere fails; reverse-rotating the active purge pump mounted on a purge line connecting the canister and an intake pipe to each other; determining whether or not an absolute value of internal pressure in a fuel tank is less than a specific value; and checking a leakage in the fuel system including the canister and the fuel tank.
展开▼