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    • 5. 发明申请
    • FUEL COMPOSITION IDENTIFICATION SYSTEM AND METHOD AND FLUID COMPOSITION IDENTIFICATION METHOD
    • 燃料组合物鉴定系统和方法以及流体组成鉴定方法
    • US20130315278A1
    • 2013-11-28
    • US13825594
    • 2011-09-23
    • Fernando LepschTulio Italico Moreira ColettoFernando de Oliveira Júnior
    • Fernando LepschTulio Italico Moreira ColettoFernando de Oliveira Júnior
    • G01N33/22
    • G01N33/22G01N25/08G01N33/2852
    • This invention refers to a fuel composition identification system and method (2) for an automotive vehicle combustion engine. The system comprises at least a fuel heating resistor (3) arranged in any position in the fuel tank or along the fuel line, in direct contact and exchanging heat with the fuel (2), an electronic control unit (4) connected to the resistor (3), which applies constant power values during time intervals (tn) to the resistor (3), and the metering device (6) for a heating resistor parameter (3) between the current sent to the resistor (3) and the surface temperature of the resistor that sends the measured values to the electronic control unit (4), and monitors the current values measured in the heating resistor (3) during each time interval tn, and when the electronic control unit (4) detects a variation in the value of the heating resistor current in the course of the time interval (tn), it identifies the fuel composition corresponding to the critical heat flow resulting from the power applied to the resistor during that time interval. The method comprises the steps of applying constant power values during time intervals (tn) to the fuel heating resistor (3); heating fuel in contact with the heating resistor (3) through exchanging heat between the heating resistor and the fuel (2); measuring a heating resistor parameter (3) between the current sent to the resistor (3) and the surface temperature of the resistor; monitoring the heating resistor parameter values (3) measured in the course of each time interval (tn), and when a variation in the resistor parameter value is detected in the course of the time interval (tn); identifying the fuel composition corresponding to the critical heat flow resulting from the power applied to the resistor during that time interval.
    • 本发明涉及一种用于机动车内燃机的燃料组合物识别系统和方法(2)。 该系统至少包括燃料加热电阻器(3),该燃料加热电阻器(3)布置在与燃料(2)直接接触并与燃料(2)进行热交换的燃料箱中或沿着燃料管线的任何位置;电子控制单元(4),连接到电阻器 (3),其在电阻器(3)的时间间隔(tn)期间施加恒定功率值,以及在发送到电阻器(3)的电流与表面之间的加热电阻器参数(3)的计量装置(6) 将测量值发送到电子控制单元(4)的电阻器的温度,并且在每个时间间隔tn期间监视在加热电阻器(3)中测量的电流值,并且当电子控制单元(4)检测到 在时间间隔(tn)的过程中,加热电阻器电流的值识别与在该时间间隔期间施加到电阻器的功率导致的临界热流相对应的燃料组成。 该方法包括以下步骤:在燃料加热电阻器(3)的时间间隔(tn)期间施加恒定功率值; 通过在所述加热电阻器和所述燃料(2)之间交换热量来加热与所述加热电阻器(3)接触的燃料; 测量发送到电阻(3)的电流与电阻表面温度之间的加热电阻参数(3); 监视在每个时间间隔(tn)的过程中测量的加热电阻器参数值(3),以及当在时间间隔(tn)的过程中检测到电阻器参数值的变化时; 识别对应于在该时间间隔期间施加到电阻器的功率导致的临界热流的燃料组成。