CN104290654A - Vehicle-mounted gas fuel safety monitoring system and monitoring method - Google Patents

Vehicle-mounted gas fuel safety monitoring system and monitoring method Download PDF

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Publication number
CN104290654A
CN104290654A CN201410110755.7A CN201410110755A CN104290654A CN 104290654 A CN104290654 A CN 104290654A CN 201410110755 A CN201410110755 A CN 201410110755A CN 104290654 A CN104290654 A CN 104290654A
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China
Prior art keywords
sensor
vehicle
gas
pressure
gas fuel
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Pending
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CN201410110755.7A
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Chinese (zh)
Inventor
李玉鹏
秦自瑞
周时国
李进
杜颖颖
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Zhengzhou Yutong Bus Co Ltd
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Zhengzhou Yutong Bus Co Ltd
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Priority to CN201410110755.7A priority Critical patent/CN104290654A/en
Publication of CN104290654A publication Critical patent/CN104290654A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a vehicle-mounted gas fuel safety monitoring system and monitoring method. The system comprises a controller, a concentration sensor, a pressure sensor, a temperature sensor, a crash sensor, a gas supply valve and an overtemperature and overpressure safety valve. The controller is in sampling connection with the concentration sensor, the pressure sensor, the temperature sensor and the crash sensor; the gas supply valve and the overtemperature and overpressure safety valve are in control connection. Pressure and temperature signals inside a vehicle-mounted gas fuel device are collected in real time through the pressure sensor and the temperature sensor; concentration and crash signals outside the gas fuel device are collected in real time by the gas concentration sensor and the crash sensor; when the signals exceed alarm state threshold values, the gas supply valve is closed, and an alarm is given out. A whole vehicle can be prevented from using gas fuel in the gas leakage process, the too high gas pressure or too low gas pressure process, the too high gas temperature process and the process that the whole vehicle is crashed, and therefore it can be ensured that the gas fuel can be reliably and safely used on the whole vehicle.

Description

A kind of vehicle-mounted gas fuel containment monitoring system and monitoring method
Technical field
The invention belongs to vehicle-mounted gas monitoring technical field, a kind of vehicle-mounted gas fuel containment monitoring system of specific design and monitoring method.
Background technology
In existing auto-industry, fuel vehicle still accounts for absolute majority.But the extensive application of fuel-engined vehicle, cause the crisis of serious environmental pollution, global warming and human survival, due to the extensive application of fuel-engined vehicle, result in successively decreasing rapidly of earth oil resources, thus finally exhausted.Therefore, the development of new-energy automobile is imperative.Gaseous fuel automobile is one of them of new-energy automobile, and such car take fire gases as fuel.Gaseous fuel car has the outstanding advantages such as energy transformation ratio is high, fuel efficiency good, low noise, pollutant emission is few, fuel source is extensive.Gaseous fuel car is applied at present, is the desirable vehicle of new generation, represents following developing direction, also therefore becomes the focus of current research.
Vehicle-mounted gas fuel, although there is plurality of advantages, because gaseous fuel is more unstable, more easily causes danger under many circumstances, also can bring potential safety hazard or even direct safety misadventure once reveal.
So be badly in need of now a kind of can the system of effective monitoring car gas carrier fuel, in order to solve the security hidden trouble not having now corresponding monitoring system to bring to tackle gaseous fuel widespread use.Be badly in need of a kind of vehicle-mounted gas fuel containment monitoring system, the monitoring to gaseous fuel can be realized, the safety of protection personnel and automobile.
Summary of the invention
The object of this invention is to provide a kind of vehicle-mounted gas fuel containment monitoring method, in order to solve the security hidden trouble not having now corresponding monitoring system to bring to tackle gaseous fuel widespread use.The present invention also aims to provide a kind of vehicle-mounted gas fuel containment monitoring system, realize the monitoring to gaseous fuel, the safety of protection personnel and automobile.
For achieving the above object, the solution of the present invention comprises:
A kind of vehicle-mounted gas fuel containment monitoring method, step is as follows:
1) by the pressure and temperature signal of pressure sensor and temperature sensor Real-time Collection vehicle-mounted gas fuel-device inside, by the collision alarm of gas concentration sensor and the crash sensor gas concentration revealed of Real-time Collection gaseous fuel device and car body respectively;
2) pressure signal that the collision alarm that the leakage gas concentration signal detected when gas concentration sensor, crash sensor detect, gas pressure sensor detect and the temperature signal that temperature sensor detects, when any one exceeds corresponding setting alarm condition threshold value, close all electromagnetic valves, the alarm condition threshold value of described correspondence is corresponding setting value; When the pressure signal that gas pressure sensor detects or the temperature signal that temperature sensor detects exceed the alarm condition threshold value of setting, also to open over-temp and over-pressure safety valve.
Step 2) described in the alarm condition threshold value of setting be Multi-stage alarming state threshold, the Multi-stage alarming state threshold according to setting arranges multistage warning.
When the collision alarm of the temperature signal detected, pressure signal, gas concentration signal and car body, when any one exceeds the alarm condition threshold value of setting, instrument display information and alarm message.
A kind of vehicle-mounted gas fuel containment monitoring system, it is characterized in that, this system comprises controller, the concentration sensor that controller sampling connects, pressure sensor, temperature sensor and crash sensor, controller Controlling solenoid valve and over-temp and over-pressure safety valve.
This system also comprises the CAN transceiver be connected with controller, and CAN transceiver is for connecting CAN in car.
Described gas concentration sensor is installed on filler opening or gas storage cabin or machinery space or passenger accommodation.
Described crash sensor is installed near the front and back country beam of vehicle.
Beneficial effect of the present invention is: the invention provides a kind of vehicle-mounted gas fuel containment monitoring method; can the state of fast and effeciently testing vehicle state and vehicle-mounted gas fuel; automatic decision dangerous situation; cut off electromagnetic valve when may potential safety hazard be there is in time or utilize safety valve to protect onboard fuel device, avoid causing real accident.
The present invention, by by the temperature of monitoring, pressure, gas leakage concentration signal, collision alarm and alerting signal, is sent to CAN in car by CAN, in car, instrument is shown by current information easily, facilitate chaufeur to check.
Accompanying drawing explanation
Fig. 1 is the system chart of vehicle-mounted gas fuel containment monitoring system;
Fig. 2 is the diagram of circuit of vehicle-mounted gas fuel monitoring method.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, it is the system chart of this vehicle-mounted gas fuel containment monitoring system, this system comprises controller, the concentration sensor that controller sampling connects, pressure sensor, temperature sensor and crash sensor, controller Controlling solenoid valve and over-temp and over-pressure safety valve.
This system also comprises the CAN transceiver be connected with controller, and CAN transceiver is for connecting CAN in car.
Described gas concentration sensor is installed on filler opening or gas storage cabin or machinery space or passenger accommodation.
Described crash sensor is installed near the front and back country beam of vehicle.
The diagram of circuit of vehicle-mounted gas fuel monitoring method as shown in Figure 2.Below for vehicle-mounted gas fuel containment Application of Monitoring System in compression hydrogen passenger vehicle, function and the control program of vehicle-mounted gas fuel containment monitoring system is described, how ensures the safety and reliability of compression hydrogen passenger vehicle.
The source of the gas part of compression hydrogen passenger vehicle is composed in series by 8 gas cylinders, over-temp and over-pressure safety valve, electromagnetic valve, pressure sensor and a temperature sensor each gas cylinder is equipped with, 4 hydrogen gas concentration sensors are also arranged on filler opening, gas storage cabin, machinery space, passenger accommodation by respectively in addition, and 4 crash sensors are arranged near the front and back country beam of passenger vehicle respectively.The concentration collected, pressure, temperature, collision information are sent to micro controller system with the form of analog quantity and carry out data processing, data after process are sent in CAN through CAN transceiver, instrument accepts these data in CAN, concentration, pressure, temperature, collision is presented in an appropriate manner in instrument respectively.Then set alarm condition according to these data and be used as the control to compression hydrogen.
1) when systems axiol-ogy to the density of hydrogen of certain concentration sensor higher than 0.6%VOL time, send Level 1Alarming, and show in instrument; When systems axiol-ogy to the density of hydrogen of certain concentration sensor higher than 1.2%VOL time, send secondary alarm, and show in instrument; When systems axiol-ogy to the density of hydrogen of certain concentration sensor higher than 2.0%VOL time, send three grades of alarms, and show in instrument, close all electromagnetic valves and stop gas supply.
2) when the temperature of certain gas cylinder of systems axiol-ogy is higher than 60 DEG C, send Level 1Alarming, and show in instrument; When the temperature of certain gas cylinder of systems axiol-ogy is higher than 110 DEG C, sends three grades of alarms, and show in instrument, the over-temp and over-pressure safety valve opening this gas cylinder, through row gas exhaust, is closed all electromagnetic valves and is stopped gas supply.
3) when systems axiol-ogy is to the pressure of certain gas cylinder higher than 37Mpa or lower than 2.5Mpa, send Level 1Alarming, and show in instrument; When systems axiol-ogy to the pressure of certain gas cylinder higher than 45Mpa time, send three grades of alarms, and show in instrument, the over-temp and over-pressure safety valve opening this gas cylinder, through row gas exhaust, is closed all electromagnetic valves and is stopped gas supply.
4) when systems axiol-ogy to the collision alarm of certain crash sensor higher than 10g time, send Level 1Alarming, and show in instrument; When systems axiol-ogy to the collision alarm of certain crash sensor higher than 18.5g time, send three grades of alarms, and show in instrument, close all electromagnetic valves and stop gas supply.
Gaseous fuel safety monitoring system provided by the invention and monitoring method can realize the effective monitoring to vehicle-mounted gas fuel, thus ensure the use that gaseous fuel can be reliable and safe on car load.
More than provide a kind of concrete embodiment, but the present invention is not limited to described embodiment.Basic ideas of the present invention are such scheme, and for those of ordinary skill in the art, according to instruction of the present invention, the parameter designing various distortion does not need to spend creative work.The change carried out embodiment without departing from the principles and spirit of the present invention, amendment, replacement and modification still fall within the scope of protection of the present invention.

Claims (7)

1. a vehicle-mounted gas fuel containment monitoring method, is characterized in that, step is as follows:
1) by the pressure and temperature signal of pressure sensor and temperature sensor Real-time Collection vehicle-mounted gas fuel-device inside, by the collision alarm of gas concentration sensor and the crash sensor gas concentration revealed of Real-time Collection gaseous fuel device and car body respectively;
2) pressure signal that the collision alarm that the leakage gas concentration signal detected when gas concentration sensor, crash sensor detect, gas pressure sensor detect and the temperature signal that temperature sensor detects, when any one exceeds corresponding setting alarm condition threshold value, close all electromagnetic valves, the alarm condition threshold value of described correspondence is corresponding setting value; When the pressure signal that gas pressure sensor detects or the temperature signal that temperature sensor detects exceed the alarm condition threshold value of setting, also to open over-temp and over-pressure safety valve.
2. vehicle-mounted gas fuel containment monitoring method according to claim 1, is characterized in that, step 2) described in the alarm condition threshold value of setting be Multi-stage alarming state threshold, the Multi-stage alarming state threshold according to setting arranges multistage warning.
3. vehicle-mounted gas fuel containment monitoring method according to claim 1 and 2, it is characterized in that, when the collision alarm of the temperature signal detected, pressure signal, gas concentration signal and car body, when any one exceeds the alarm condition threshold value of setting, instrument display information and alarm message.
4. implement the vehicle-mounted gas fuel containment monitoring system of vehicle-mounted gas fuel containment monitoring method as claimed in claim 1 for one kind, it is characterized in that, this system comprises controller, the concentration sensor that controller sampling connects, pressure sensor, temperature sensor and crash sensor, controller Controlling solenoid valve and over-temp and over-pressure safety valve.
5. vehicle-mounted gas fuel containment monitoring system according to claim 4, it is characterized in that, this system also comprises the CAN transceiver be connected with controller, and CAN transceiver is for connecting CAN in car.
6. vehicle-mounted gas fuel containment monitoring system according to claim 4, is characterized in that, described gas concentration sensor is installed on filler opening or gas storage cabin or machinery space or passenger accommodation.
7. vehicle-mounted gas fuel containment monitoring system according to claim 4, is characterized in that, described crash sensor is installed near the front and back country beam of vehicle.
CN201410110755.7A 2014-03-24 2014-03-24 Vehicle-mounted gas fuel safety monitoring system and monitoring method Pending CN104290654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410110755.7A CN104290654A (en) 2014-03-24 2014-03-24 Vehicle-mounted gas fuel safety monitoring system and monitoring method

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Application Number Priority Date Filing Date Title
CN201410110755.7A CN104290654A (en) 2014-03-24 2014-03-24 Vehicle-mounted gas fuel safety monitoring system and monitoring method

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CN104290654A true CN104290654A (en) 2015-01-21

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107942993A (en) * 2017-11-06 2018-04-20 乌鲁木齐市隆盛达环保科技有限公司 A kind of sanitation cart gas cylinder detection method and system based on Beidou navigation
US20190293029A1 (en) * 2013-10-31 2019-09-26 Westport Power Inc. Method for delivering a fluid stored in liquefied form to an end user in gaseous form
CN110562131A (en) * 2019-08-29 2019-12-13 武汉格罗夫氢能汽车有限公司 Novel control device for indoor hazard warning lamp of hydrogen energy automobile
CN110836692A (en) * 2019-11-15 2020-02-25 中国汽车工程研究院股份有限公司 Vehicle driving road test bus event optimization system and method thereof
CN113665351A (en) * 2021-09-18 2021-11-19 中国重汽集团济南动力有限公司 Heavy truck is with on-vehicle hydrogen system and actuating mechanism
CN113931763A (en) * 2021-09-30 2022-01-14 东风商用车有限公司 High-pressure common rail pipe
CN114987206A (en) * 2022-05-19 2022-09-02 佛山日隆能源科技有限公司 Vehicle-mounted hydrogen supply control system and hydrogen supply monitoring system
CN116085670A (en) * 2022-11-08 2023-05-09 广州船舶及海洋工程设计研究院(中国船舶工业集团公司第六0五研究院) Safety monitoring method for gas fuel injection port and industrial personal computer

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CN103231662A (en) * 2013-04-18 2013-08-07 同济大学 Control method of high reliability fuel cell car power system
CN203438937U (en) * 2013-08-30 2014-02-19 北汽福田汽车股份有限公司 Gas leakage detection device for vehicle

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GB2472860A (en) * 2009-08-21 2011-02-23 Gm Global Tech Operations Inc Method of detecting at least one malfunctioning high-pressure gas tank
CN201562341U (en) * 2009-09-04 2010-08-25 张益滔 Liquefied gas leakage alarm device
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190293029A1 (en) * 2013-10-31 2019-09-26 Westport Power Inc. Method for delivering a fluid stored in liquefied form to an end user in gaseous form
CN107942993A (en) * 2017-11-06 2018-04-20 乌鲁木齐市隆盛达环保科技有限公司 A kind of sanitation cart gas cylinder detection method and system based on Beidou navigation
CN110562131A (en) * 2019-08-29 2019-12-13 武汉格罗夫氢能汽车有限公司 Novel control device for indoor hazard warning lamp of hydrogen energy automobile
CN110836692A (en) * 2019-11-15 2020-02-25 中国汽车工程研究院股份有限公司 Vehicle driving road test bus event optimization system and method thereof
CN110836692B (en) * 2019-11-15 2020-12-04 中国汽车工程研究院股份有限公司 Vehicle driving road test bus event optimization system and method thereof
CN113665351A (en) * 2021-09-18 2021-11-19 中国重汽集团济南动力有限公司 Heavy truck is with on-vehicle hydrogen system and actuating mechanism
CN113931763A (en) * 2021-09-30 2022-01-14 东风商用车有限公司 High-pressure common rail pipe
CN114987206A (en) * 2022-05-19 2022-09-02 佛山日隆能源科技有限公司 Vehicle-mounted hydrogen supply control system and hydrogen supply monitoring system
CN116085670A (en) * 2022-11-08 2023-05-09 广州船舶及海洋工程设计研究院(中国船舶工业集团公司第六0五研究院) Safety monitoring method for gas fuel injection port and industrial personal computer

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