WO2018049810A1 - 氢气浓度检测装置及具有其的车辆 - Google Patents

氢气浓度检测装置及具有其的车辆 Download PDF

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WO2018049810A1
WO2018049810A1 PCT/CN2017/079383 CN2017079383W WO2018049810A1 WO 2018049810 A1 WO2018049810 A1 WO 2018049810A1 CN 2017079383 W CN2017079383 W CN 2017079383W WO 2018049810 A1 WO2018049810 A1 WO 2018049810A1
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hydrogen concentration
sensors
vehicle
monitoring device
hydrogen
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PCT/CN2017/079383
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English (en)
French (fr)
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王雷
陈栋芝
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北汽福田汽车股份有限公司
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Publication of WO2018049810A1 publication Critical patent/WO2018049810A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/80—Indicating pH value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity

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  • the present application relates to the field of automotive technology, and in particular, to a hydrogen concentration detecting device and a vehicle having the same.
  • fuel cell vehicles use independent hydrogen concentration sensors to detect hydrogen concentration, wherein the detection principle is generally an oxide resistance method or a thermal catalytic method.
  • the hydrogen concentration sensor is installed at the highest point of the area to be detected, and the power line and the signal line are connected, so that the hydrogen concentration sensor is sampled by the fuel cell controller to resolve the hydrogen concentration value.
  • the detection method in the related art is single, which makes it impossible to effectively avoid the risk of sensor failure, and can not ensure the accuracy and reliability of the detection, and can not effectively ensure the safety of the vehicle, and there are certain hidden dangers that need to be improved.
  • the present application aims to solve at least one of the technical problems in the related art to some extent.
  • an object of the present application is to provide a hydrogen concentration detecting device which can improve the accuracy and reliability of detection and is simple and easy to implement.
  • Another object of the present application is to propose a vehicle.
  • a hydrogen concentration detecting device comprising: a hydrogen concentration collecting device, the hydrogen concentration collecting device is disposed at an upper portion of a to-be-detected region of a vehicle, and the hydrogen concentration collecting device includes at least two a hydrogen concentration sensor, wherein the at least two hydrogen concentration sensors are thermal conductivity sensors and/or optical sensors; a hydrogen concentration monitoring device, the hydrogen concentration monitoring device is connected to the hydrogen concentration collection device, according to the at least The hydrogen concentration signals collected by the two hydrogen concentration sensors determine whether the hydrogen concentration collection device is malfunctioning.
  • the hydrogen concentration collecting device includes a plurality of hydrogen concentration sensors, so that not only the hydrogen concentration can be determined, but also whether the hydrogen concentration collecting device is faulty according to the collected hydrogen concentration signal, thereby avoiding the risk of sensor failure. And improve the accuracy and reliability of the test to ensure the safety of the vehicle. Sex, easy to implement.
  • the at least two hydrogen concentration sensors may be the same.
  • the at least two hydrogen concentration sensors are divided into two pairs, each pair comprising two identical hydrogen concentration sensors.
  • the method further includes: an alarm, wherein the alarm is connected to the hydrogen concentration monitoring device to perform an alarm when the hydrogen concentration monitoring device determines that the hydrogen concentration collection device is faulty, and the hydrogen concentration The monitoring device determines that the hydrogen concentration value is not up to standard and performs an alarm.
  • the alarm can be a speaker.
  • the method further includes: a temperature sensor connected to the hydrogen concentration monitoring device, so that the hydrogen concentration monitoring device corrects the hydrogen concentration value according to a temperature of a region to be detected of the vehicle.
  • the hydrogen concentration monitoring device includes: an acquisition unit, configured to acquire a hydrogen concentration signal collected by the at least two hydrogen concentration sensors; and a controller, configured to determine the hydrogen collected by the at least two hydrogen concentration sensors Whether the difference between the concentration signals is greater than a preset threshold, and when the difference is greater than the preset threshold, determining that the hydrogen concentration collection device is faulty.
  • another aspect of the present application is to provide a vehicle including the above-described hydrogen concentration detecting device.
  • the hydrogen concentration collecting device of the vehicle comprises a plurality of hydrogen concentration sensors, thereby not only determining the hydrogen concentration, but also determining whether the hydrogen concentration collecting device is faulty according to the collected hydrogen concentration signal, avoiding the risk of sensor failure, and improving the accuracy of the detection. Sex and reliability, effectively ensuring the safety of the vehicle, easy to implement.
  • the vehicle may be an electric car or a hybrid car.
  • FIG. 1 is a schematic structural view of a hydrogen concentration detecting device according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a hydrogen concentration detection point according to an embodiment of the present application.
  • FIG. 3 is a schematic structural view of a hydrogen concentration detecting apparatus according to an embodiment of the present application.
  • Fuel cell electric vehicles use high-pressure hydrogen storage bottles to store hydrogen as fuel for fuel cell stacks. Because hydrogen is a flammable and explosive gas under normal temperature and pressure, especially when the purity of hydrogen is not high (requires hydrogen concentration ⁇ 25ppm), it is necessary to detect the hydrogen concentration to avoid hydrogen leakage or cause combustion. Explosion accident. However, because hydrogen has colorless, transparent, odorless, tasteless, and low density characteristics, hydrogen gas leakage cannot be perceived by the human body, and a dedicated detection device must be used.
  • the existing method installs only one hydrogen concentration sensor at one detection point, the detection is single, the calibration device is lacking, and it is impossible to judge whether the sensor is invalid, and only one hydrogen concentration detection method is provided, and the detection error of the hydrogen concentration is large. .
  • the existing hydrogen concentration detecting method uses a fuel cell controller to supply power, signal sampling, and signal analysis of the hydrogen concentration sensor.
  • the final analyzed hydrogen concentration signal is accurate in accuracy, reaction time and false alarm rate.
  • the design ability of the sensor itself cannot be exerted, and there are certain defects.
  • the present application is based on the above problems, and proposes a hydrogen concentration detecting device and a vehicle.
  • FIG. 1 is a schematic view showing the structure of a hydrogen concentration detecting device according to an embodiment of the present application.
  • the hydrogen concentration detecting device 10 includes a hydrogen concentration collecting device 100 and a hydrogen concentration monitoring device 200.
  • the hydrogen concentration collecting device 100 is disposed at an upper portion of a to-be-detected area of the vehicle, such as a highest point of the sealed space as a hydrogen concentration detecting point, wherein the hydrogen concentration collecting device 100 includes at least two hydrogen concentration sensors ( As shown by the hydrogen concentration sensor 101 and the hydrogen concentration sensor 102, at least two hydrogen concentration sensors are thermal conductivity sensors and/or optical sensors.
  • the hydrogen concentration monitoring device 200 is connected to the hydrogen concentration collecting device 100 to determine whether the hydrogen concentration collecting device 100 is malfunctioning according to the hydrogen concentration signal collected by the at least two hydrogen concentration sensors.
  • the detecting device 10 of the embodiment of the present invention can not only detect the hydrogen concentration value, but also detect whether the hydrogen concentration collecting device 100 is faulty, improve the accuracy and reliability of the detection, and effectively ensure the safety of the vehicle, which is simple and easy to implement.
  • At least two hydrogen concentration sensors may be the same.
  • a plurality of hydrogen concentration sensors of the same type can be set, for example, two hydrogen concentration sensors are used, which can be used for failure inspection detection (described in detail below), thereby effectively solving the problem caused by the single concentration sensor. Effectively judge whether the sensor is invalid, resulting in difficulty in maintenance and high frequency of maintenance.
  • the at least two hydrogen concentration sensors are split into two pairs, each pair comprising two identical hydrogen concentration sensors.
  • each pair may include two identical hydrogen concentration sensors, and the hydrogen concentration sensors of different pairs may be different, so that not only the hydrogen concentration value but also the hydrogen concentration collection device may be detected, and the detection is improved. Accuracy and reliability.
  • thermal conductivity sensors shown by thermal conductivity sensor 1 and thermal conductivity sensor 2
  • optical sensors such as optical sensor 1 and optical sensor 2.
  • the hydrogen concentration monitoring device includes: an acquisition unit and a controller.
  • the acquiring unit is configured to acquire a hydrogen concentration signal collected by at least two hydrogen concentration sensors.
  • the controller is configured to determine whether a difference between the hydrogen concentration signals collected by the at least two hydrogen concentration sensors is greater than a preset threshold, and when the difference is greater than a preset threshold, determine that the hydrogen concentration collection device is faulty, that is, the difference > a certain value Determine the failure of the hydrogen concentration collection device.
  • the preset threshold can be set according to actual conditions.
  • both the optical and thermal conductivity hydrogen concentration sensors can be integrated at each detection point, and the concentration detection range accuracy of the two sensors is high, ⁇ 0.2%.
  • the thermal conductivity sensor can have cross-sensitive characteristics for He, Ar, CO, CH 4, etc., but the thermal conductivity sensor has no poisoning characteristics, while the optical sensor has no cross-sensitive property, but has poisoning characteristics for SO 2 and H 2 S. Therefore, the accuracy of the hydrogen concentration detection can be improved by using the two high-precision hydrogen concentration sensors to complement the cross-sensitive characteristics and the poisoning characteristics of other gases.
  • the simultaneous sampling of multiple sensors of the same type can be used to detect whether the sensor is faulty, such as failure, and simultaneous sampling by different types of sensors can optimize the accuracy of the sampling result.
  • FIG. 3 there may be multiple hydrogen concentration collection devices, which are not specifically limited herein.
  • the detecting apparatus 10 of the embodiment of the present application further includes: an alarm.
  • the alarm is connected to the hydrogen concentration monitoring device 200 to alarm when the hydrogen concentration monitoring device 200 determines that the hydrogen concentration collecting device 100 is faulty, and to alarm when the hydrogen concentration monitoring device 200 determines that the hydrogen concentration value is not up to standard.
  • the hydrogen concentration monitoring device 200 analyzes the hydrogen concentration values reported by the two sensors and performs error analysis. When the error exceeds the standard, the sensor failure alarm is issued through the alarm. In addition, when sensor power supply, signal sampling, and signal solution are detected When the fault condition such as analysis, alarm threshold setting, sensor parameter calibration, sensor fault, etc., the alarm can also be issued through the alarm, no specific details are given here.
  • the alarm threshold can be set according to the actual situation.
  • the alarm may be a speaker, thereby providing an audible reminder to the driver for the purpose of timely alarming.
  • the detecting apparatus 10 of the embodiment of the present application further includes: a temperature sensor (as shown by the temperature sensor 3).
  • the temperature sensor is connected to the hydrogen concentration monitoring device 200 so that the hydrogen concentration monitoring device 200 corrects the hydrogen concentration value according to the temperature of the region to be detected of the vehicle.
  • the detection point of the hydrogen concentration may select the highest point position of the semi-closed or confined space
  • the hydrogen concentration detecting device 10 is composed of the hydrogen concentration collecting device 100 integrated by the four hydrogen concentration sensors and a hydrogen concentration monitoring device 200.
  • Each sensor integrated panel can be equipped with two optical sensors and two thermal conductivity sensors.
  • the power supply harness and the signal harness are connected to the hydrogen concentration monitoring device 200.
  • the hydrogen concentration monitoring device 200 can provide a stable power source that meets the sensor requirements, and samples the temperature of the sensor arrangement area, provides temperature compensation of the hydrogen concentration sensor, and can sample the signals of the two optical sensors and the two thermal conductivity sensors in real time.
  • the hydrogen concentration detecting device proposed in the present application is not limited to the value and type of the hydrogen concentration sensor.
  • the hydrogen concentration collecting device includes a plurality of hydrogen concentration sensors, and a hydrogen gas concentration monitoring device is used to add a plurality of hydrogen concentration sensor tree structures to realize multi-point sampling of hydrogen concentration, centralized reporting, and passing
  • Multiple sensor signals of the same type can be used as sensor failure alarms, and the calibration values of different types of sensors can be used to verify the error of hydrogen concentration detection, so that not only the hydrogen concentration but also the collected hydrogen concentration can be determined.
  • the signal determines whether the hydrogen concentration acquisition device is faulty, avoids the risk of sensor failure, and improves the accuracy and reliability of the detection, and effectively ensures the safety of the vehicle, which is simple and easy to implement.
  • an embodiment of the present application also proposes a vehicle including the above-described hydrogen concentration detecting device.
  • the vehicle has the above-mentioned hydrogen concentration detecting device, and the hydrogen concentration collecting device includes a plurality of hydrogen concentration sensors, and a multi-point sampling of the hydrogen concentration is realized by using a hydrogen concentration monitoring device and a tree structure of a plurality of hydrogen concentration sensors.
  • the calibration value of different types of sensors can be used to reduce the error of hydrogen concentration detection, thereby not only determining the hydrogen concentration, but also collecting according to The hydrogen concentration signal determines whether the hydrogen concentration acquisition device is faulty and avoids sensing The risk of failure of the device, as well as the accuracy and reliability of the detection, effectively ensure the safety of the vehicle, and is easy to implement.
  • the vehicle may be an electric car or a hybrid car.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • the first feature "on” or “below” the second feature may be the direct contact of the first and second features, or the first and second features are indirectly through the intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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Abstract

一种氢气浓度检测装置（10）及具有其的车辆，其中，装置包括：氢气浓度采集装置（100），氢气浓度采集装置（100）设置在车辆的待检测区域的上部，氢气浓度采集装置（100）包括至少两个氢气浓度传感器（101，102），其中，至少两个氢气浓度传感器（101，102）为热导传感器和/或光学传感器；氢气浓度监测装置（200），氢气浓度监测装置（200）与氢气浓度采集装置（100）相连，以根据至少两个氢气浓度传感器（101，102）采集到的氢气浓度信号确定氢气浓度采集装置（100）是否故障。该检测装置（10）不但可以检测氢气浓度值，而且可以检测氢气浓度采集装置（100）是否故障，提高了检测的精确性和可靠性，有效保证车辆的安全性，简单易实现。

Description

氢气浓度检测装置及具有其的车辆
相关申请的交叉引用
本申请要求北汽福田汽车股份有限公司于2016年09月13日提交的、发明名称为“氢气浓度检测装置及具有其的车辆”的、中国专利申请号“201621054560.6”的优先权。
技术领域
本申请涉及汽车技术领域，特别涉及一种氢气浓度检测装置及具有其的车辆。
背景技术
相关技术中，燃料电池汽车都采用独立的氢气浓度传感器，以检测氢气浓度，其中，检测原理一般为氧化物电阻法或者热催化法。具体地，将氢气浓度传感器安装在需要检测的区域的最高点，并连接好电源线和信号线，从而由燃料电池控制器对氢气浓度传感器进行采样，以解析出氢气浓度值。
然而，相关技术中的检测方法单一，导致无法有效避免传感器失效的风险，不但无法保证检测的精确性和可靠性，而且无法有效保证车辆的安全性，存在一定隐患，有待改进。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本申请的一个目的在于提出一种氢气浓度检测装置，该装置可以提高检测的精确性和可靠性，简单易实现。
本申请的另一个目的在于提出一种车辆。
为达到上述目的，本申请一方面提出了一种氢气浓度检测装置，包括：氢气浓度采集装置，所述氢气浓度采集装置设置在车辆的待检测区域的上部，所述氢气浓度采集装置包括至少两个氢气浓度传感器，其中，所述至少两个氢气浓度传感器为热导传感器和/或光学传感器；氢气浓度监测装置，所述氢气浓度监测装置与所述氢气浓度采集装置相连，以根据所述至少两个氢气浓度传感器采集到的氢气浓度信号确定所述氢气浓度采集装置是否故障。
根据本申请的氢气浓度检测装置，氢气浓度采集装置包括多个氢气浓度传感器，从而不但可以确定氢气浓度，而且可以根据采集到的氢气浓度信号确定氢气浓度采集装置是否故障，避免传感器失效的风险，以及提高了检测的精确性和可靠性，有效保证车辆的安全 性，简单易实现。
可选地，所述至少两个氢气浓度传感器可以相同。
可选地，所述至少两个氢气浓度传感器分为两对，每对包括两个相同的氢气浓度传感器。
进一步地，还包括：报警器，所述报警器与所述氢气浓度监测装置相连，以在所述氢气浓度监测装置确定出所述氢气浓度采集装置存在故障时进行报警，以及在所述氢气浓度监测装置确定出所述氢气浓度值未达标时进行报警。
进一步地，所述报警器可以为扬声器。
另外，还包括：温度传感器，所述温度传感器与所述氢气浓度监测装置相连，以便所述氢气浓度监测装置根据所述车辆的待检测区域的温度修正所述氢气浓度值。
进一步地，所述氢气浓度监测装置包括：获取单元，用于获取所述至少两个氢气浓度传感器采集到的氢气浓度信号；控制器，用于判断所述至少两个氢气浓度传感器采集到的氢气浓度信号之间的差值是否大于预设阈值，并且当所述差值大于所述预设阈值时，确定所述氢气浓度采集装置故障。
为达到上述目的，本申请另一方面提出了一种车辆，其包括上述的氢气浓度检测装置。该车辆的氢气浓度采集装置包括多个氢气浓度传感器，从而不但可以确定氢气浓度，而且可以根据采集到的氢气浓度信号确定氢气浓度采集装置是否故障，避免传感器失效的风险，以及提高了检测的精确性和可靠性，有效保证车辆的安全性，简单易实现。
可选地，车辆可以为电动汽车或者混合动力汽车。
本申请附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本申请一个实施例的氢气浓度检测装置的结构示意图；
图2为根据本申请一个实施例的氢气浓度检测点示意图；
图3为根据本申请一个具体实施例的氢气浓度检测装置的结构示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描 述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
下面在描述根据本申请实施例提出的氢气浓度检测装置及具有其的车辆之前，先来简单描述一下准确检测氢气浓度的重要性。
燃料电池电动汽车使用高压储氢瓶存储氢气，以作为燃料电池堆的燃料。因为常温常压下，氢气是一种易燃易爆的气体，尤其是氢气纯度不高的情况下(要求氢气浓度＜25ppm)，所以需要对氢气浓度进行检测，避免发生氢气的泄漏引发燃烧或爆炸事故。然而，又因为氢气具有无色透明、无臭无味，密度小的特性，所以氢气泄漏无法被人体感知，必须使用专用的检测装置。
相关技术中，现有方式在一个检测点只安装一个氢气浓度传感器，检测单一，缺少校验装置，并且无法判断传感器是否失效，以及只提供一种氢气浓度检测方式，对氢气浓度的检测误差大。
另外，现有的氢气浓度检测方法使用燃料电池控制器来对氢气浓度传感器进行供电和信号采样及信号解析。然是，因为各厂家开发的燃料电池控制器硬件和软件存在差异的原因和设计人员对氢气浓度传感器性能理解的不同，导致最终解析出来的氢气浓度信号在精度和反应时间及误报率上都无法发挥出传感器本身的设计能力，存在一定缺陷。
本申请正是基于上述问题，而提出了一种氢气浓度检测装置和一种车辆。
下面参照附图描述根据本申请实施例提出的氢气浓度检测装置及具有其的车辆，首先将参照附图描述根据本申请实施例提出的氢气浓度检测装置。
图1是本申请一个实施例的氢气浓度检测装置的结构示意图。
如图1所示，该氢气浓度检测装置10包括：氢气浓度采集装置100和氢气浓度监测装置200。
其中，如图2所示，氢气浓度采集装置100设置在车辆的待检测区域的上部，如密闭空间的最高点作为氢气浓度检测点，其中，氢气浓度采集装置100包括至少两个氢气浓度传感器(如氢气浓度传感器101和氢气浓度传感器102所示)，其中，至少两个氢气浓度传感器为热导传感器和/或光学传感器。氢气浓度监测装置200与氢气浓度采集装置100相连，以根据至少两个氢气浓度传感器采集到的氢气浓度信号确定氢气浓度采集装置100是否故障。本申请实施例的检测装置10不但可以检测氢气浓度值，而且可以检测氢气浓度采集装置100是否故障，提高了检测的精确性和可靠性，有效保证车辆的安全性，简单易实现。
可选地，在本申请的一个实施例中，至少两个氢气浓度传感器可以相同。
可以理解的是，可以设置多个相同类型的氢气浓度传感器，如每种氢气浓度传感器均采用2个，可以作失效检验检测(下面会进行详细描述)，从而有效解决了单一浓度传感器引起的无法有效判断传感器是否失效，造成的维保难，检修频次高的缺陷。
可选地，在本申请的一个实施例中，至少两个氢气浓度传感器分为两对，每对包括两个相同的氢气浓度传感器。
需要说明的是，每对可以包括两个相同的氢气浓度传感器，并且不同对中的氢气浓度传感器可以不同，从而不但可以检测氢气浓度值，而且可以检测氢气浓度采集装置是否故障，提高了检测的精确性和可靠性。
可以理解的是，根据不同的氢气浓度检测原理，可以定制开发适配汽车级要求的氢气浓度传感器，并根据燃料电池汽车的氢气安全要求，匹配集成几种氢气浓度传感器，以达到报警的目的，可以实现多角度监控燃料电池汽车的氢气安全。
进一步地，在本申请的一个实施例中，如图3所示，其中，一对中的两个相同的氢气浓度传感器可以为热导传感器(热导传感器1和热导传感器2所示)和/或光学传感器(如光学传感器1和光学传感器2所示)。
进一步地，在本申请的一个实施例中，氢气浓度监测装置包括：获取单元和控制器。具体地，获取单元用于获取至少两个氢气浓度传感器采集到的氢气浓度信号。控制器用于判断至少两个氢气浓度传感器采集到的氢气浓度信号之间的差值是否大于预设阈值，并且当差值大于预设阈值时，确定氢气浓度采集装置故障，即差值>一定值，确定氢气浓度采集装置故障。需要说明的是，预设阈值可以根据实际情况进行设置。
可以理解的是，在每个检测点可以集成光学和热导两种氢气浓度传感器，这两种传感器的浓度检测范围精度高，＜±0.2％。热导传感器可以对He、Ar、CO、CH4等有交叉敏感的特性，但是热导传感器无中毒特性，而光学传感器无交叉敏感特性，但是对SO2，H2S有中毒特性。因此，可以利用这两种高精度氢气浓度传感器在交叉敏感特性和对其它气体的中毒特性上的互补，提高对氢气浓度检测的精确性。
也就是说，采用多个同类型传感器同时采样，可以用于检测传感器是否故障如失效，而且采用不同类型传感器同时采样，可以对采样结果精度进行优化。
可选地，在本申请的一个实施例中，如图3所示，氢气浓度采集装置可以为多个，在此不作具体限制。
进一步地，在本申请的一个实施例中，本申请实施例的检测装置10还包括：报警器。
其中，报警器与氢气浓度监测装置200相连，以在氢气浓度监测装置200确定出氢气浓度采集装置100存在故障时进行报警，以及在氢气浓度监测装置200确定出氢气浓度值未达标时进行报警。
可以理解的是，在每个检测点，如集成两个同型号同类型的氢气浓度传感器。氢气浓度监测装置200解析两个传感器分别上报的氢气浓度数值，并进行误差分析，一旦误差超标，则通过报警器发出传感器失效报警。另外，当检测到传感器供电、信号采样、信号解 析、报警阈值设置、传感器参数标定、传感器故障等故障情况时，也可以通过报警器发出报警，在此不作具体赘述。报警阈值可以根据实际情况进行设置。
进一步地，在本申请的一个实施例中，报警器可以为扬声器，从而对驾驶员进行声音提醒，达到及时报警的目的。
另外，在本申请的一个实施例中，如图3所示，本申请实施例的检测装置10还包括：温度传感器(如温度传感器3所示)。其中，温度传感器与氢气浓度监测装置200相连，以便氢气浓度监测装置200根据车辆的待检测区域的温度修正氢气浓度值。
举例而言，首先氢气浓度的检测点可以选择半密闭或者密闭空间的最高点位置，其次氢气浓度检测装置10如由4个氢气浓度传感器集成的氢气浓度采集装置100和一个氢气浓度监测装置200组成。每个传感器集成面板可以装配有两个光学传感器和两个热导传感器。通过供电线束和信号线束与氢气浓度监测装置200连接。其中，氢气浓度监测装置200可以提供稳定的符合传感器要求的电源，并且采样传感器布置区域的温度，提供氢气浓度传感器的温度补偿，而且可以实时采样两个光学传感器和两个热导传感器的信号，从而利用两个相同类型传感器信号比较，以作传感器失效故障报警，且利用不同类型传感器采样数值的校验，减小氢气浓度检测的误差，以及可以根据使用要求设置不同的氢气浓度报警值，且可以自动校准。
需要说明的是，本申请提出的氢气浓度检测装置并不限定于氢气浓度传感器的数值和类型。氢气浓度传感器的数值和类型越多，则意味着检测更加可靠，但是检测装置结构比较复杂，因此，根据氢气浓度传感器的数值和类型要求不同，氢气浓度传感器的数值和类型可以根据实际情况进行设置。
根据本申请的氢气浓度检测装置，氢气浓度采集装置包括多个氢气浓度传感器，利用一个氢气浓度监测装置加多个氢气浓度传感器的树状结构，实现氢气浓度的多点采样，集中上报，并且通过多个相同类型传感器信号比较，可以作传感器失效故障报警，而且通过不同类型传感器采样数值进行校验，可以减小氢气浓度检测的误差，从而不但可以确定氢气浓度，而且可以根据采集到的氢气浓度信号确定氢气浓度采集装置是否故障，避免传感器失效的风险，以及提高了检测的精确性和可靠性，有效保证车辆的安全性，简单易实现。
此外，本申请的实施例还提出了一种，该车辆包括上述的氢气浓度检测装置。该车辆由于具有了上述的氢气浓度检测装置，氢气浓度采集装置包括多个氢气浓度传感器，利用一个氢气浓度监测装置加多个氢气浓度传感器的树状结构，实现氢气浓度的多点采样，集中上报，并且通过多个相同类型传感器信号比较，可以作传感器失效故障报警，而且通过不同类型传感器采样数值进行校验，可以减小氢气浓度检测的误差，从而不但可以确定氢气浓度，而且可以根据采集到的氢气浓度信号确定氢气浓度采集装置是否故障，避免传感 器失效的风险，以及提高了检测的精确性和可靠性，有效保证车辆的安全性，简单易实现。
其中，在本申请的实施例中，车辆可以为电动汽车或者混合动力汽车。
另外，根据本申请实施例的车辆的其它构成以及作用对于本领域的技术人员而言都是已知的，为了减少冗余，不做赘述。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (9)

  1. 一种氢气浓度检测装置，其特征在于，包括：
    氢气浓度采集装置，所述氢气浓度采集装置设置在车辆的待检测区域的上部，所述氢气浓度采集装置包括至少两个氢气浓度传感器，其中，所述至少两个氢气浓度传感器为热导传感器和/或光学传感器；
    氢气浓度监测装置，所述氢气浓度监测装置与所述氢气浓度采集装置相连，以根据所述至少两个氢气浓度传感器采集到的氢气浓度信号确定所述氢气浓度采集装置是否故障。
  2. 根据权利要求1所述的氢气浓度检测装置，其特征在于，所述至少两个氢气浓度传感器相同。
  3. 根据权利要求1所述的氢气浓度检测装置，其特征在于，所述至少两个氢气浓度传感器分为两对，每对包括两个相同的氢气浓度传感器。
  4. 根据权利要求1-3任一项所述的氢气浓度检测装置，其特征在于，还包括：
    报警器，所述报警器与所述氢气浓度监测装置相连，以在所述氢气浓度监测装置确定出所述氢气浓度采集装置存在故障时进行报警，以及在所述氢气浓度监测装置确定出所述氢气浓度值未达标时进行报警。
  5. 根据权利要求4所述的氢气浓度检测装置，其特征在于，所述报警器为扬声器。
  6. 根据权利要求1-3任一项所述的氢气浓度检测装置，其特征在于，还包括：
    温度传感器，所述温度传感器与所述氢气浓度监测装置相连，以便所述氢气浓度监测装置根据所述车辆的待检测区域的温度修正所述氢气浓度值。
  7. 根据权利要求1所述的氢气浓度检测装置，其特征在于，所述氢气浓度监测装置包括：
    获取单元，用于获取所述至少两个氢气浓度传感器采集到的氢气浓度信号；
    控制器，用于判断所述至少两个氢气浓度传感器采集到的氢气浓度信号之间的差值是否大于预设阈值，并且当所述差值大于所述预设阈值时，确定所述氢气浓度采集装置故障。
  8. 一种车辆，其特征在于，包括：根据权利要求1-7任一项所述的氢气浓度检测装置。
  9. 根据权利要求8所述的车辆，其特征在于，所述车辆为电动汽车或者混合动力汽车。
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CN110865114A (zh) * 2019-11-01 2020-03-06 深圳国氢新能源科技有限公司 室内氢气监测方法及监测系统
CN113970070A (zh) * 2021-09-28 2022-01-25 北京格睿能源科技有限公司 液氢与深冷气氢泄漏检测及定位方法及装置
DE102022208285A1 (de) 2022-08-09 2023-05-11 Vitesco Technologies GmbH Verfahren und Gassensor zum Ermitteln der Konzentration einer Gaskomponente in einem Gasgemisch
DE102023202514A1 (de) 2023-03-21 2024-02-22 Vitesco Technologies GmbH Verfahren zum Ermitteln der Funktionstüchtigkeit eines Wasserstoffsensors eines Fahrzeugs

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