-
1.发明授权公开(公告)号：US07100585B2
公开(公告)日：2006-09-05
申请号：US10504142
申请日：2003-02-25
Applicant: Stephane Bourret , Laurent Leprieur , Olivier Meurisse
Inventor： Stephane Bourret , Laurent Leprieur , Olivier Meurisse
CPC classification number: F02D21/08 , F02D41/1446 , F02D41/2464 , F02D2200/0414 , F02M26/05 , F02M26/49 , F02M26/53 , F02M26/57
Abstract: A method for diagnosing the operating condition of an internal combustion engine exhaust gas recycling valve. The method acquires a measurement value of a reference position of the recycling valve at a predetermined time corresponding to a normally closed position of the valve, calculates the difference between the acquired reference value and a reference value acquired during a diagnostic cycle previously carried out, and compares the calculated difference with a threshold value for detecting opening of the valve.
Abstract translation: 一种用于诊断内燃机废气再循环阀的运行状态的方法。 该方法在与阀的常闭位置相对应的规定时间取得再循环阀的基准位置的测量值，算出所获取的基准值与先前执行的诊断循环期间获取的基准值之间的差， 将计算出的差值与检测阀开度的阈值进行比较。
-
2.发明申请公开(公告)号：US20050145231A1
公开(公告)日：2005-07-07
申请号：US10504142
申请日：2003-02-25
Applicant: Stephane Bourret , Laurent Leprieur , Olivier Meurisse
Inventor： Stephane Bourret , Laurent Leprieur , Olivier Meurisse
CPC classification number: F02D21/08 , F02D41/1446 , F02D41/2464 , F02D2200/0414 , F02M26/05 , F02M26/49 , F02M26/53 , F02M26/57
Abstract: A method for diagnosing the operating condition of an internal combustion engine exhaust gas recycling valve. The method acquires a measurement value of a reference position of the recycling valve at a predetermined time corresponding to a normally closed position of the valve, calculates the difference between the acquired reference value and a reference value acquired during a diagnostic cycle previously carried out, and compares the calculated difference with a threshold value for detecting opening of the valve.
Abstract translation: 一种用于诊断内燃机废气再循环阀的运行状态的方法。 该方法在与阀的常闭位置相对应的规定时间取得再循环阀的基准位置的测量值，算出所获取的基准值与先前执行的诊断循环期间获取的基准值之间的差， 将计算出的差值与检测阀开度的阈值进行比较。
-
公开(公告)号：US20090158708A1
公开(公告)日：2009-06-25
申请号：US12297769
申请日：2007-03-19
Applicant: Charlotte Lynch , Stephane Bourret , Karim Guenounou , Bernard Dionnet
Inventor： Charlotte Lynch , Stephane Bourret , Karim Guenounou , Bernard Dionnet
CPC classification number: F01N3/0807 , F01N11/007 , F01N2250/12 , F01N2550/03 , Y02T10/20 , Y02T10/47
Abstract: The invention proposes an engine (11) comprising a catalytic converter (12c), a first probe (120) able to deliver a first signal (Vsp) proportional to the oxygen content of an exhaust gas and installed upstream of the converter, a second oxygen probe (130) downstream of the converter and able to provide a second signal (Vsb), and means (13) for making a diagnosis regarding the operating condition of the converter, characterized in that: the second oxygen probe (130) is of the on/off type and the means (13) are designed to convert the first signal (Vsp) into a third signal (Vspb) of the on/off type and to make the diagnosis on the basis of the second and third signals (Vsb, Vspb).
Abstract translation: 本发明提出一种发动机（11），其包括催化转化器（12c），第一探针（120），其能够输送与排气的氧含量成比例并且安装在转化器上游的第一信号（Vsp），第二氧 探头（130），能够提供第二信号（Vsb），以及用于对转换器的工作状态进行诊断的装置（13），其特征在于：所述第二氧探针（130）是 开/关型，并且装置（13）被设计为将第一信号（Vsp）转换成开/关类型的第三信号（Vspb），并且基于第二和第三信号（Vsb， Vspb）。
-
-
Search Results
3
records
(took 0.01 seconds)
