公开(公告)号：WO2013009247A1

公开(公告)日：2013-01-17

申请号：PCT/SE2012/050793

申请日：2012-07-06

Applicant: SCANIA CV AB ,  STRÅÅT, Fredrik ,  ZAMANI, Sebastian

Inventor： STRÅÅT, Fredrik ,  ZAMANI, Sebastian

IPC: G01K15/00

CPC classification number: G01K15/007

Abstract: The invention relates to a method for testing a temperature sensor which comprises a temperature-dependent resistor (R2). The method comprises the steps of - determining the resistance R t1 for R2, - applying to the resistor R2 a voltage pulse with a predetermined voltage amplitude U t and a predetermined duration T, - determining the resistance R t2 for R2 after the voltage pulse, - determining the absolute value of the resistance difference AR = | R t1 - R t2 |, - comparing AR with one or more threshold values (TR1, TR2,...), - generating on the basis of the result of the comparison a test signal which represents the result of the testing of the temperature sensor.

Abstract translation: 本发明涉及一种用于测试温度传感器的方法，该温度传感器包括温度依赖电阻（R2）。 该方法包括以下步骤：确定R2的电阻Rt1， - 向电阻器R2施加具有预定电压幅度Ut和预定持续时间T的电压脉冲， - 确定电压脉冲之后的R2的电阻Rt2， - 确定 电阻差绝对值AR = | Rt1-Rt2 |， - 将AR与一个或多个阈值（TR1，TR2，...）进行比较， - 根据比较结果生成表示温度传感器测试结果的测试信号。

公开(公告)号：WO2013009240A1

公开(公告)日：2013-01-17

申请号：PCT/SE2012/050765

申请日：2012-07-03

Applicant: SCANIA CV AB ,  ZAMANI, Sebastian ,  STRÅÅT, Fredrik

Inventor： ZAMANI, Sebastian ,  STRÅÅT, Fredrik

IPC: G01N29/024

CPC classification number: G01N29/024 ,  G01N29/326 ,  G01N2291/0217

Abstract: The invention relates to a measuring device (2) adapted to testing a liquid (4) used as reducing agent in connection with exhaust cleaning for exhaust gases from a combustion engine. The device comprises a temperature sensor (6) adapted to measuring the temperature in the liquid and an acoustic velocity measuring unit (8) adapted to measuring the acoustic velocity in the liquid. The temperature sensor is adapted to determining a first temperature T1 for the liquid and to delivering on the basis thereof a temperature signal (12) to a calculation unit (10); the acoustic velocity measuring unit (8) is adapted to determining a first acoustic velocity v1 for the liquid at the temperature T1 and to delivering on the basis thereof an acoustic velocity signal (14) to the calculation unit (10). The temperature sensor (6) is further adapted to determining a second temperature T2 for the liquid and to delivering on the basis thereof a temperature signal (12) to the calculation unit (10), which is adapted to calculating the absolute value of a temperature difference ?T between T1 and T2, i.e. ΔT = ΙT1-T2 Ι, and to comparing ΔT with a predetermined threshold value T TH . If ΔT exceeds T TH , a control signal (16) is delivered to the acoustic velocity measuring unit (8) to determine a second acoustic velocity v 2 for the liquid at the temperature T2 and to deliver on the basis thereof an acoustic velocity signal (14) to the calculation unit (10), which is adapted to comparing v 1 and v 2 with respective first and second velocity reference values vref1 and v ref 2 for a reference liquid at the respective temperatures T1 and T2. On the basis of the result of the comparison an indicating signal (18) is generated to the effect that the liquid is approved if the measured values v 1 and v 2 are within approved velocity ranges for the reference values, but not approved if v 1 and v 2 are not within a said approved velocity ranges.

Abstract translation: 本发明涉及一种测量装置（2），该测量装置适于测试与用于来自内燃机的废气的排气清洁相关的还原剂的液体（4）。 该装置包括适于测量液体温度的温度传感器（6）和适于测量液体中的声速的声速测量单元（8）。 温度传感器适于确定用于液体的第一温度T1，并基于此将温度信号（12）输送到计算单元（10）; 声速测量单元（8）适于确定在温度T1下的液体的第一声速v1，并且基于该速度信号向计算单元（10）输送声速信号（14）。 温度传感器（6）还适于确定用于液体的第二温度T2，并且基于该温度信号向计算单元（10）输送温度信号（12），该温度信号适于计算温度的绝对值 T1和T2之间的差ΔT，即ΔT=ΔT1-T2，以及将ΔT与预定阈值T TH进行比较。 如果ΔT超过TTH，则将控制信号（16）传送到声速测量单元（8），以确定在温度T2下的液体的第二声速v2，并基于此传送声速信号（14 ）到计算单元（10），其适于将v1和v2与相应温度T1和T2处的参考液体的相应的第一和第二速度参考值vref1和vref2进行比较。 基于比较结果，生成指示信号（18），使得如果测量值v1和v2在参考值的认可速度范围内，则液体被批准，但是如果v1和v2是 不在所述批准的速度范围内。

公开(公告)号：WO2012078097A1

公开(公告)日：2012-06-14

申请号：PCT/SE2011/051470

申请日：2011-12-02

Applicant: SCANIA CV AB ,  ZAMANI, Sebastian ,  PERSSON, Henrik

Inventor： ZAMANI, Sebastian ,  PERSSON, Henrik

IPC: H05B1/02 ,  B60N2/56

CPC classification number: H05B1/0236 ,  B60N2/5685

Abstract: Comfort warming control system (2) for a vehicle provided with a comfort warming system with one or more heating coils (4), comprising a control unit (6) and a feed unit (8) which is adapted to conveying to said heating coil a pulsewidth-modulated warming signal with a cycle length P H and a variable pulsewidth P W . The comfort warming control system further comprises a measuring unit (12) adapted to measuring the current I H and the voltage U H across the heating coil when the warming signal is conveyed to the heating coil, to determining the resistance of the heating coil on the basis of the measured voltage U H and the measured current I H and to generating on the basis thereof a resistance signal (14') for conveying to the control unit, the control unit being adapted to determining on the basis of the resistance a parameter related to the heating coil. According to an embodiment, the control system comprises a temperature input unit (10) for input of desired temperatures for the comfort warming system, and the control unit is adapted to determining a pulsewidth (P W ) for the warming signal on the basis of the current and/or resistance measured, the temperature desired and the parameter determined, so that the desired temperature is reached, and to delivering a control signal (16) to the feed unit which is adapted to conveying the warming signal to the heating coil with the pulsewidth determined.

Abstract translation: 一种用于具有一个或多个加热线圈（4）的舒适加温系统的车辆的舒适加温控制系统（2），包括控制单元（6）和适于传送到所述加热线圈的进给单元（8） 具有循环长度PH和可变脉冲宽度PW的脉宽调制加温信号。 舒适加温控制系统还包括测量单元（12），该测量单元（12）适于在加热信号被传送到加热线圈时测量电流IH和跨越加热线圈的电压UH，以基于 测量电压UH和测量电流IH，并且基于此产生用于传送到控制单元的电阻信号（14'），所述控制单元适于基于电阻来确定与加热线圈相关的参数 。 根据实施例，控制系统包括用于输入舒适加温系统的期望温度的温度输入单元（10），并且控制单元适于基于当前的温度来确定加温信号的脉冲宽度（PW） 和/或测量的电阻，所需的温度和确定的参数，使得达到期望的温度，并且将控制信号（16）传送到馈送单元，该馈送单元适于将加温信号传送到具有脉冲宽度的加热线圈 决心。

公开(公告)号：WO2012053954A1

公开(公告)日：2012-04-26

申请号：PCT/SE2011/000184

申请日：2011-10-21

Applicant: SCANIA CV AB ,  ZAMANI, Sebastian ,  MARKUSSON, Christoffer

Inventor： ZAMANI, Sebastian ,  MARKUSSON, Christoffer

IPC: H02P29/02 ,  G01R19/165 ,  G01R31/34

CPC classification number: G01R31/02 ,  G01R31/343 ,  G01R31/42 ,  H02P29/02

Abstract: The invention relates to a method for function detection in a feed configuration (230; 302a; 302b; 303a; 303b) which comprises feed lines (302a; 302b; 303a; 303b), an electronic conversion unit (310; 230) and a three-phase electric motor (230; 330). The method comprises the steps of: - detecting (s410) a response signal (S) in a feed line (301a; 301b) for the feed configuration (230; 302a; 302b; 303a; 303b), - detecting (s420) levels (v1-vn) of specific sections of said response signal (S), - comparing (s430) levels (v1-vn) thus detected of said specific sections of said response signal (S) with a predetermined threshold level (Th) over a predetermined period of time (T), and - determining (s440) an unwanted function of the feed configuration (230; 302a; 302b; 303a; 303b) if all of the levels (v1-vn) thus detected of said specific sections of said response signal (S) are below said predetermined threshold level (Th) over said predetermined period of time (T). The invention relates also to a computer programme product containing programme code (P) for a computer (200; 210) for implementing a method according to the invention. The invention relates also to a device and to a motor vehicle equipped with the device.

Abstract translation: 本发明涉及一种用于在馈送配置（230; 302a; 302b; 303a; 303b）中进行功能检测的方法，包括馈线（302a; 302b; 303a; 303b），电子转换单元（310; 230）和三 相电动机（230; 330）。 该方法包括以下步骤： - 检测（s410）用于馈送配置（230; 302a; 302b; 303a; 303b）的馈线（301a; 301b）中的响应信号（S）， - 检测（s420）电平 所述响应信号（S）的特定部分的信号（v1-vn）; - 将由此检测到的所述响应信号（S）的所述特定部分的（s430）电平（v1-vn）与预定阈值电平 如果检测到所述响应的所述特定部分的所有级别（v1-vn），则确定（s440）馈送配置（230; 302a; 302b; 303a; 303b）的不期望的功能 信号（S）在所述预定时间段（T）之下低于所述预定阈值电平（Th）。 本发明还涉及一种包含用于实现根据本发明的方法的计算机（200; 210）的程序代码（P）的计算机程序产品。 本发明还涉及一种装备有装备该装置的机动车辆。