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1.发明授权VEHICULE AUTOMOBILE COMPRENANT UN CIRCUIT DE GAZ RECIRCULES ET PROCEDE DE MISE EN OEUVRE 有权循环切换返回传递包含气体的机动车辆及其实现方法
公开(公告)号：EP2229525B1
公开(公告)日：2011-08-10
申请号：EP08855770.7
申请日：2008-11-18
申请人： Renault S.A.S.
发明人： ARCHER, PASCAL , ROUAUD, PASCAL , METAYER, JULIEN
CPC分类号： F02M25/0727 , B60H1/00271 , B60H2001/00307 , F01P7/165 , F01P2005/105 , F01P2060/08 , F02B29/0443 , F02M26/05 , F02M26/23 , F02M26/24 , F02M26/28 , F02M26/35
摘要： In a motor vehicle having exhaust-gas recirculation, the fluid of the air-conditioning circuit is used to cool the coolant of a dedicated hydraulic circuit, which in turn cools the recirculated exhaust gases in a two-stage (HT,LT EGR) heat exchanger, thus increasing engine gain by replenishing in order to reduce NOx emissions. The method comprises differentiated control strategies for these circuits, as a function of vehicle driving conditions, continuous modes and transient braking and acceleration modes, in order to compensate for the consumption of the compressor (C) of the air-conditioning circuit. The circuits comprise a heat exchanger (EXCH STORE) for heat exchange between the air-conditioning fluid and coolant, provided with a bypass, capable of accumulating and releasing cold energy, and, optionally, a line for condensing the water vapour of the exhaust gases and for reinjecting the condensed water to the intake.
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2.发明公开VEHICULE AUTOMOBILE COMPRENANT UN CIRCUIT DE GAZ RECIRCULES ET PROCEDE DE MISE EN OEUVRE 有权循环切换返回传递包含气体的机动车辆及其实现方法
公开(公告)号：EP2229525A1
公开(公告)日：2010-09-22
申请号：EP08855770.7
申请日：2008-11-18
申请人： Renault S.A.S.
发明人： ARCHER, PASCAL , ROUAUD, PASCAL , METAYER, JULIEN
CPC分类号： F02M25/0727 , B60H1/00271 , B60H2001/00307 , F01P7/165 , F01P2005/105 , F01P2060/08 , F02B29/0443 , F02M26/05 , F02M26/23 , F02M26/24 , F02M26/28 , F02M26/35
摘要： In a motor vehicle having exhaust-gas recirculation, the fluid of the air-conditioning circuit is used to cool the coolant of a dedicated hydraulic circuit, which in turn cools the recirculated exhaust gases in a two-stage (HT,LT EGR) heat exchanger, thus increasing engine gain by replenishing in order to reduce NOx emissions. The method comprises differentiated control strategies for these circuits, as a function of vehicle driving conditions, continuous modes and transient braking and acceleration modes, in order to compensate for the consumption of the compressor (C) of the air-conditioning circuit. The circuits comprise a heat exchanger (EXCH STORE) for heat exchange between the air-conditioning fluid and coolant, provided with a bypass, capable of accumulating and releasing cold energy, and, optionally, a line for condensing the water vapour of the exhaust gases and for reinjecting the condensed water to the intake.
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