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    Method for controlling the strength of the air/fuel mixture supplied to an internal-combustion engine
    2.
    发明授权
    Method for controlling the strength of the air/fuel mixture supplied to an internal-combustion engine 有权
    用于控制供给内燃机的空气/燃料混合物的强度的方法

    公开(公告)号：US06226982B1

    公开(公告)日：2001-05-08

    申请号：US09378760

    申请日：1999-08-23

    申请人： Luca Poggio ,  Marco Secco ,  Daniele Ceccarini

    发明人： Luca Poggio ,  Marco Secco ,  Daniele Ceccarini

    IPC分类号： F01N300

    CPC分类号： F02D41/126 ,  F02D41/0295 ,  F02D41/1475 ,  F02D2200/0802 ,  F02D2200/0814 ,  F02D2200/0816

    摘要： Method for controlling the strength of the air/fuel mixture supplied to an internal-combustion engine after the engine has been in a fuel cut-off operating condition during which a catalytic converter arranged along the exhaust pipe of the engine is acted on by a flow of air and stores oxygen; the method comprising the steps of measuring the strength of the mixture supplied to the engine by means of an oxygen sensor arranged along the exhaust pipe upstream of the catalytic converter; estimating the quantity of oxygen stored by the catalytic converter during the fuel cut-off condition on the basis of the measured strength; and, at the end of the fuel cut-off condition, correcting the strength of the mixture with respect to a target value in relation to the quantity of estimated oxygen, so as to ensure controlled enrichment of the mixture which allows rapid disposal of the oxygen stored by the catalytic converter; the correction of the strength allowing minimization of the time interval during which the catalytic converter operates at low efficiency at the end of the fuel cut-off condition.

    摘要翻译： 用于控制在发动机处于燃料切断操作状态之后供应给内燃机的空气/燃料混合物的强度的方法，其中沿发动机的排气管布置的催化转化器通过流动 的空气和储存氧气; 该方法包括以下步骤：通过沿催化转化器上游的排气管布置的氧传感器来测量供给发动机的混合物的强度; 基于所测量的强度来估计在燃料切断条件期间由催化转化器储存的氧的量; 并且在燃料截止条件结束时，相对于估计氧气的量来校正混合物相对于目标值的强度，以便确保允许快速处理氧气的混合物的受控富集 由催化转化器储存; 在燃料切断状态结束时允许最小化催化转化器以低效率工作的时间间隔的强度的校正。

    Control method for an oxygen linear sensor
    3.
    发明授权
    Control method for an oxygen linear sensor 失效
    氧线性传感器的控制方法

    公开(公告)号：US06223735B1

    公开(公告)日：2001-05-01

    申请号：US09354440

    申请日：1999-07-16

    申请人： Luca Poggio ,  Marco Secco ,  Daniele Ceccarini

    发明人： Luca Poggio ,  Marco Secco ,  Daniele Ceccarini

    IPC分类号： F02D4100

    CPC分类号： G01N27/4175

    摘要： Control method for an oxygen linear sensor, in which the sensor is located along an exhaust duct of an internal combustion engine to receive into a separate chamber part of the exhaust gas and generate a first signal representative of the swing between the composition of the gases in the chamber and a reference stoichiometric composition; the first signal being processed by a retroactive circuit which pilots an electrical current Ip into the sensor in such a manner as to generate an oxygen ion draining mechanism from and towards the chamber and to cancel the swing; the current being converted into an output signal which saving an error due to current spreads, is proportional to the quantity of oxygen present in the exhaust gases; the method presenting the calculation phase of a correction parameter which is applied to the output signal to make it effectively proportional to the quantity of oxygen present in the exhaust gases; the calculation of the parameter being effected with the sensor located in a controlled atmosphere by means of processing of the output signal and of a nominal voltage defining the theoretical value of the output signal in the presence of the said controlled atmosphere.

    摘要翻译： 用于氧线性传感器的控制方法，其中传感器沿着内燃机的排气管道定位以接收到分离的废气中的一部分，并产生代表气体组成之间的摆动的第一信号 该室和参考化学计量组成; 所述第一信号由追溯电路处理，所述追溯电路以电流Ip导向所述传感器，以便从所述室产生氧离子排出机构并且朝向所述室并且消除所述摆动; 转换为输出信号的电流与排气中存在的氧气量成正比; 该方法呈现校正参数的计算阶段，该校正参数应用于输出信号以使其与废气中存在的氧气量成正比; 通过在所述受控气氛的存在下通过输出信号的处理和限定输出信号的理论值的标称电压，利用位于受控气氛中的传感器进行参数的计算。

    Circuit and a method for monitoring and diagnosing an oxygen probe
    6.
    发明授权
    Circuit and a method for monitoring and diagnosing an oxygen probe 有权
    电路和监测和诊断氧探头的方法

    公开(公告)号：US06476611B2

    公开(公告)日：2002-11-05

    申请号：US09804057

    申请日：2001-03-13

    申请人： Marco Berti ,  Piero Carbonaro ,  Daniele Ceccarini ,  Luca Poggio

    发明人： Marco Berti ,  Piero Carbonaro ,  Daniele Ceccarini ,  Luca Poggio

    IPC分类号： F02P1700

    CPC分类号： G01N27/4175

    摘要： A circuit for monitoring and diagnosing an oxygen probe provided with a sensitive cell connected between a first and a second signal terminal, and a heating member connected between a battery and a heating terminal; the circuit includes an interface stage and a control unit. The interface stage includes a first resistor connected between a switch which is normally open and a supply line at a known potential and the first signal terminal, a second resistor connected between the first signal terminal and a second signal terminal and a third resistor connected between the second signal terminal and reference potential line. The control unit further includes a first analog-digital converter connected to the first signal terminal and a second analog-digital converter connected to the second signal terminal.

    摘要翻译： 一种用于监测和诊断设置有连接在第一和第二信号端子之间的敏感单元的氧探头和连接在电池和加热端子之间的加热构件的电路; 电路包括接口级和控制单元。 接口级包括连接在常开的开关和已知电位的电源线之间的第一电阻器和第一信号端子，连接在第一信号端子和第二信号端子之间的第二电阻器和连接在第一信号端子之间的第三电阻器 第二信号端子和参考电位线。 控制单元还包括连接到第一信号端的第一模数转换器和连接到第二信号端的第二模数转换器。

    Control device for a linear oxygen sensor
    7.
    发明授权
    Control device for a linear oxygen sensor 有权
    线性氧传感器的控制装置

    公开(公告)号：US06334352B1

    公开(公告)日：2002-01-01

    申请号：US09438476

    申请日：1999-11-12

    申请人： Luca Poggio ,  Marco Secco ,  Piero Carbonaro ,  Daniele Ceccarini

    发明人： Luca Poggio ,  Marco Secco ,  Piero Carbonaro ,  Daniele Ceccarini

    IPC分类号： F01N300

    CPC分类号： G01N27/4065 ,  F02D41/1456

    摘要： Control device for a linear oxygen sensor located in an exhaust pipe of an internal combustion engine in contact with exhaust gases in use, the control device including a linear oxygen sensor composed of at least one reference chamber for receiving a specified percentage of oxygen and being one of at least two types which differ in the way in which the at least one reference chamber receives oxygen; controller for exerting a control action on the linear oxygen sensor to generate an output signal (DIP) at an output representing a ratio of the exhaust gases and being composed of a programmable control device; and an operating unit for operating and programming the programmable control device to match the controller to the type of linear oxygen sensor to which it is connected.

    摘要翻译： 用于与使用中的废气接触的内燃机排气管中的线性氧传感器的控制装置，所述控制装置包括线性氧传感器，所述线性氧传感器由至少一个用于接收指定百分比的氧的参考室组成，并且是一个 至少两种类型，其中所述至少一个参考室接收氧的方式不同; 控制器，用于对所述线性氧传感器施加控制动作，以在表示排气比并由可编程控制装置组成的输出端产生输出信号（DIP）; 以及用于操作和编程可编程控制装置以将控制器与其所连接的线性氧传感器的类型相匹配的操作单元。

    Method for estimating the temperature of the exhaust gases upstream from a pre-catalyser, disposed along an exhaust pipe of an internal-combustion engine
    8.
    发明授权
    Method for estimating the temperature of the exhaust gases upstream from a pre-catalyser, disposed along an exhaust pipe of an internal-combustion engine 有权
    用于估计沿着内燃机的排气管设置的预催化剂上游的废气的温度的方法

    公开(公告)号：US06422000B1

    公开(公告)日：2002-07-23

    申请号：US09679870

    申请日：2000-10-05

    申请人： Luca Poggio ,  Daniele Ceccarini

    发明人： Luca Poggio ,  Daniele Ceccarini

    IPC分类号： F01N300

    CPC分类号： F02D41/1401 ,  F02D41/1456 ,  F02D41/1494

    摘要： A method is described for estimating the temperature of the exhaust gases upstream from a pre-catalyser disposed along an exhaust pipe of an internal-combustion engine, which is provided with a system for controlling the composition of the exhaust gases, comprising an oxygen sensor, which is disposed along the exhaust pipe, upstream from the pre-catalyser, a heater, which is associated with the oxygen sensor, and a control unit, which, inter alia, serves the purpose of piloting the heater. The method comprises the steps of: determining an operative quantity, which is correlated to an electrical power supplied to the heater, in order to keep the operative temperature of the oxygen sensor close to a target temperature; and determining the temperature of the exhaust gases upstream from the pre-catalyser, according to the said operative quantity.

    摘要翻译： 描述了一种用于估计沿着内燃机排气管设置的预催化剂上游的废气的温度的方法，该内燃机设置有用于控制废气的组成的系统，包括氧传感器， 其沿着排气管设置在预催化剂的上游，与氧传感器相关联的加热器，以及控制单元，其特别地用于引导加热器的目的。 该方法包括以下步骤：确定与提供给加热器的电力相关的操作量，以便保持氧传感器的操作温度接近目标温度; 以及根据所述操作量确定来自预催化剂的排气的温度。

    Method for the diagnosis of an exhaust gas purification system for an internal combustion engine
    9.
    发明授权
    Method for the diagnosis of an exhaust gas purification system for an internal combustion engine 失效
    用于诊断用于内燃机的废气净化系统的方法

    公开(公告)号：US06389805B1

    公开(公告)日：2002-05-21

    申请号：US09696174

    申请日：2000-10-26

    申请人： Luca Poggio ,  Ciro Barberio ,  Matteo De Cesare ,  Daniele Ceccarini

    发明人： Luca Poggio ,  Ciro Barberio ,  Matteo De Cesare ,  Daniele Ceccarini

    IPC分类号： F01N300

    CPC分类号： F01N11/005 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N2550/02 ,  Y02T10/47

    摘要： A method for the diagnosis of an exhaust gas purification system for an internal combustion engine, provided with a pre-catalyst and a main catalyst disposed along an exhaust duct of an internal combustion engine; the method including the stages of determining a real heat supplied to the exhaust gases in the pre-catalyst as a function of a input temperature and an output temperature of the exhaust gases at the input and output respectively of the pre-catalyst; determining a nominal heat supplied during nominal operating conditions of the pre-catalyst; calculating an index representative of the state of wear of the pre-catalyst, as a function of the real heat and the nominal heat; comparing the index with a threshold value.

    摘要翻译： 一种用于诊断用于内燃机的排气净化系统的方法，其具有沿着内燃机的排气管设置的预催化剂和主催化剂; 该方法包括以下步骤：根据预催化剂的输入和输出处的输入温度和排气的输出温度来确定供应到预催化剂中的废气的实际热量的阶段; 确定在预催化剂的标称操作条件下供应的标称热量; 计算代表预催化剂磨损状态的指标，作为实际热量和标称热量的函数; 将索引与阈值进行比较。

    Self-adapting control method for an exhaust system for internal combustion engines with controlled ignition
    10.
    发明授权
    Self-adapting control method for an exhaust system for internal combustion engines with controlled ignition 失效
    具有受控点火的内燃机排气系统的自适应控制方法

    公开(公告)号：US06327848B1

    公开(公告)日：2001-12-11

    申请号：US09657150

    申请日：2000-09-07

    申请人： Luca Poggio ,  Daniele Ceccarini ,  Matteo De Cesare ,  Ciro Barberio ,  Alessandro Verdecchia

    发明人： Luca Poggio ,  Daniele Ceccarini ,  Matteo De Cesare ,  Ciro Barberio ,  Alessandro Verdecchia

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N3/0885 ,  F01N2570/04 ,  F01N2900/1612 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/1456 ,  F02D2200/0806 ,  F02D2200/0808 ,  F02D2200/0811 ,  F02D2200/0818

    摘要： A self-adapting control method for an exhaust system for internal combustion engines with controlled ignition, including an engine, a pre-catalyst, a trap for the collection of nitrogen oxides having a maximum initial capacity and a maximum available capacity not greater than this maximum initial capacity and a linear oxygen sensor disposed downstream of the trap for the collection of nitrogen oxides and generating at least a downstream composition signal substantially proportional to a downstream oxygen titer. The method comprises the stages of carrying out at least one regeneration process and carrying out at least one desulphurisation process of the trap for the collection of nitrogen oxides and also the stage of estimating, at least after each regeneration process, the maximum available capacity as a function of the maximum initial capacity and the downstream composition signal.

    摘要翻译： 一种用于具有受控点火的内燃机的排气系统的自适应控制方法，包括发动机，预催化剂，用于收集具有最大初始容量和不大于该最大值的最大可用容量的氮氧化物的捕集器 初始容量和设置在捕集器下游的线性氧传感器，用于收集氮氧化物并产生至少一个与下游氧滴度成比例的下游组成信号。 该方法包括执行至少一个再生过程并执行捕集器的至少一个脱硫过程以收集氮氧化物的阶段，以及至少在每个再生过程之后将最大可用容量估计为 最大初始容量和下游组成信号的功能。