ENGINE WARMING-UP SYSTEM

To more efficiently warm up an engine with an electric supercharger.SOLUTION: An engine warming-up system 100 includes: an intake flow passage 18; an electric supercharger 22; an exhaust flow passage 20; an EGR flow passage 32; a fresh air control valve 25 for opening/closing the intake flow passage...

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Bibliographic Details
Main Authors AKIYAMA HIROSHI, KASUYA YUJI
Format Patent
LanguageEnglish
Japanese
Published 06.12.2018
Subjects
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:To more efficiently warm up an engine with an electric supercharger.SOLUTION: An engine warming-up system 100 includes: an intake flow passage 18; an electric supercharger 22; an exhaust flow passage 20; an EGR flow passage 32; a fresh air control valve 25 for opening/closing the intake flow passage; a throttle valve 24 for opening/closing the intake flow passage; an EGR valve 34 for opening/closing the EGR flow passage; an intake valve 12 and an exhaust valve 13 of an engine; an intake/exhaust valve control section 114 for performing opening control of the intake valve and the exhaust valve during stop of the engine; a first valve control section 116 performing control for closing the fresh air control valve and opening the EGR valve when a predetermined engine warming-up execution condition is satisfied; an electric supercharger control section 118 for driving the electric supercharger when the engine warming-up execution condition is satisfied; and a second valve control section 122 for controlling an opening of the throttle valve to drive the electric supercharger in a predetermined driving region when the engine warming-up execution condition is satisfied.SELECTED DRAWING: Figure 1 【課題】電動過給機を備えたエンジンにおいて、より効率よく暖機する。【解決手段】エンジン暖機システム１００は、吸気流路１８と、電動過給機２２と、排気流路２０と、ＥＧＲ流路３２と、吸気流路を開閉する新気制御弁２５と、吸気流路を開閉するスロットル弁２４と、ＥＧＲ流路を開閉するＥＧＲバルブ３４と、エンジンの吸気弁１２および排気弁１３と、エンジンの停止中において、吸気弁および排気弁を開放制御する吸排気弁制御部１１４と、所定のエンジン暖機実行条件が成立すると、新気制御弁を閉鎖し、ＥＧＲバルブを開放する制御を行う第１バルブ制御部１１６と、エンジン暖機実行条件が成立すると、電動過給機を駆動させる電動過給機制御部１１８と、エンジン暖機実行条件が成立すると、電動過給機を所定の駆動領域で駆動させるように、スロットル弁の開度を調整する第２バルブ制御部１２２と、を備える。【選択図】図１
Bibliography:Application Number: JP20170100024