100 results about "Automobile emission" patented technology

The invention discloses a monitoring system and method for the pollutants produced by automobile exhaust emissions in the air pollutants. The standard emission database of all automobile types is established, OBD monitoring and diagnosis devices are mounted on all automobiles for transmitting automobile emission data, and a remote-control data monitoring center monitors automobile exhaust by analyzing the automobile data and notifies a driver the emission is excessive. Compared with the prior art, the method and system has the advantages that the automobile exhaust emission situation is analyzed through the engine data during driving, the automobile exhaust emission can be monitored in real time, emission of the automobiles with the OBD monitoring and diagnosis devices are monitored for 7*24 hours in an uninterrupted manner, emission data can be counted, automobiles with abnormal emission can be found and necessarily controlled in proper time, the automobile owner can be contacted timely to repair the automobiles according to the problems, and the atmosphere pollution caused by automobile abnormity can be prevented.

The invention relates to a three-way catalyst used for automobile emission purification and a preparation method thereof, and belongs to the field of atmospheric pollution regulation and environment-friendly catalytic materials. The catalyst uses a cordierite honeycomb ceramic as a carrier, a mixture coating of Gamma-Al2O3 and rare earth complex oxide (Ce-Zr-M-Ox) as a promoter, and transition metals of Co and Ni, and precious metals of Pd and Rh as catalytic activity components. According to the invention, through the adoption of a sol method, the pre-treated carrier is coated with the promoter coating, the carrier coated with the promoter coating is dipped into a precursor complex solution of catalytic activity components by using an equal-volume dipping method, and the catalyst is obtained through drying and roasting. The three-way catalyst has low precious metal content; the transition metals of Co and Ni have well concerted catalysis with the precious metals; higher three-way catalytic activities and excellent low temperature ignition performances are shown; carbon monoxide, nitrogen oxide, and hydrocarbon in automobile exhaust can be effectively removed; the preparation process of the catalyst is simple.

The invention discloses a method for recycling rare earth and platinum group metal from a spent automobile emission purification catalyst. The method comprises the following steps that 1, fine grinding is carried out; 2, sulfatizing roasting is carried out; 3, dilute acid leaching is carried out, wherein a roasted product in the second step is subjected to dilute sulfuric acid leaching, and a rare earth sulfate solution and platinum group metal bearing insoluble slag are obtained after filtering and separating; 4, the rare earth is recycled, wherein sodium sulfate is added to the rare earth sulfate solution obtained in the third step, rare earth sulfate double salt precipitation is generated, and lanthanum-cerium rare earth oxide is prepared; and 5, the platinum group metal is recycled, wherein hydrochloric acid and chlorine are adopted in the insoluble slag obtained in the third step for leaching of the platinum group metal, and leachate is subjected to treatment through an existing separating and purifying refining process, so that platinum, palladium and rhodium of the platinum group metal are obtained. Compared with the prior art, the method can be adopted for effectively recycling the rare earth and the platinum group metal from the spent automobile catalyst, the method is simple and practicable, all needed equipment is mature and universal equipment in the field of metallurgy, and the production cost is low.

The invention relates to a system and a method for the remote sensing measurement of automobile emissions. The system comprises a radiation source, a radiation detection unit and a processing unit, wherein the processing unit comprises: a module for calculating percent concentration of CO2 according to %CO2 = c x (%CO/%CO2)2 + d x (%CO/%CO2) + e; and a module for respectively calculating the percent concentration of each component in tail gas according to the percent concentration of CO2. Implementing the system and the method for the remote sensing measurement of automobile emissions has no need of solving stoichiometric combustion equation to calculate the concentration of CO2; assumption for the content of hydrogen and carbon in fuel or tail gas is not required; signal readings measured by a detector are used for generating correct concentration of CO2; in the process of measurement, assumption for the stoichiometric operation (e.g. under the optimal air/fuel ratio) of vehicle is not required; and during real-time remote sensing measurement, the concentration of CO2 is calculated for every vehicle according to tail gas plume.

The invention relates to an engine oil and fuel oil purifier. The engine oil and fuel oil purifier comprises an oil purifier main body, a base and an oil purifier cover, wherein the bottom part of the oil purifier main body is arranged in the middle of the base, the base is installed on a car body through installation holes I, the top part of the oil purifier main body is provided with an installation rim, the oil purifier main body and the oil purifier cover are installed together through bolts, installation holes II in the installation rim, installation holes III in the oil purifier cover and huts, an oil delivery pipe is perpendicularly arranged on the oil purifier cover, the distance from the bottom part of the oil delivery pipe to the bottom part of the oil purifier main body is 15-25mm, a plurality of groups of purification components are arranged in the oil purifier main body, and each group of purification components is formed by a filter screen purification layer, a purification particle purification layer and a purification sheet purification layer which are sequentially arranged from bottom to top. Compared with the prior art, the engine oil and fuel oil purifier has the advantages that solid impurities such as microorganisms, water, ferric oxide and dust in engine oil and fuel oil are effectively filtered and purified, the lubricating property of the engine oil and the full combustion rate of the fuel oil are improved, the service life of the engine is prolonged and the European automobile emission standard is surpassed.

The invention provides an automatic exposure controlling device and an automatic exposure controlling method for digital photography. The method comprises the following steps that an automobile emission control (AEC) sensor converts a received X ray into visible light, generates an electric charge signal, and transmits the electric charge signal to an integrator on an analog module by an interface; the integrator converts the electric charge signal into a voltage signal,amplifies and filters, and outputs the voltage signal to an analogue-digital conversion (ADC) module; the ADC module transmits the converted digital signal to a processing module (a microprocessor); the processing module performs digital filtering on the digital signal converted by the ADC module and compares the digital signal with the converted digital signal to select a maximum value; and finally, the processing module compares the maximum value with a preset value to determine whether a pulse signal is sent to an X-ray panel probe to sample. Compared with the traditional method, the automatic exposure controlling method has the advantages that a multistage amplifying and comparing module is eliminated, and the ADC module is added, so that the AEC is controlled in a digitalized mode; and the device is intelligentized and high in response sensitivity, and is difficultly interfered by the outside environment.

The invention provides a preparation method of a rare-earth oxide material containing tourmaline. According to the method, tourmaline micro powder is added during a hydrothermal preparation process, and a micro electric field generated by spontaneous polarization of the tourmaline micro powder is utilized to control the increase of particle sizes of rare-earth oxide particles in hydrothermal reaction, so that more reaction active sites are exposed while the specific surface area of the rare-earth oxide material is increased, the catalytic oxidation reactivity of high perovskite type rare-earth oxides is promoted, and defects in the preparation process and application of the conventional perovskite type rare-earth oxides are overcome. The method can be widely used for pretreatment of catalytic materials, brings favorable economic benefits and social benefits to China in the fields of catalytic oxidation, industrial organic waste gas treatment, automobile emission purification and the like, and is of important positive significance in energy conservation, emission reduction and reasonable use of energy sources.

The invention discloses a spark ignition engine automobile exhaust emission remote sensing big data detection method and system. The system comprises an automobile exhaust emission measuring instrument, a main control computer, an information display instrument, an automobile driving state tester, a weather detector, a license plate camera and a motor vehicle emission monitoring platform. The automobile exhaust emission measuring instrument, the information display instrument, the automobile driving state tester, the weather monitor and the license plate camera are in communication connectionwith the main control computer, and the main control computer is connected with the motor vehicle emission monitoring platform through the Internet. The automobile exhaust pollutant content is collected through the system, the VSP of the automobile is divided into a plurality of Bin subareas, statistical analysis and evaluation are conducted on automobile emission according to different automobiletypes, and the high-emission automobile is judged.

The invention discloses an automobile emission purification catalyst and a preparing method thereof. The catalyst is prepared from a carrier and catalyst coatings with which the carrier is coated. The catalyst is a double-coating catalyst. The first coating is prepared from aluminum oxide and molecular sieves. The second coating is a precious metal coating, precious metal is fixed to a material with an immersion method, and uneven precious-metal dispersion and other influences caused by migration of precious metal in the later period are reduced. According to the catalyst and the preparing method, the first coating is a non-precious-metal coating, cost is lower than that of the precious coating, and the molecular sieves and the aluminum oxide have the high adsorption effect; particularly, a large amount of methane is adsorbed at the low temperature, then a reaction between a small amount of methane and a second active substance layer is promoted, and the rapid ignition effect is achieved; the second coating is the precious metal coating, the concentration of the precious metal in the coating is high, and the low-temperature ignition effect can be achieved.

The invention provides a hydrogen and gasoline dual fuel engine. The hydrogen and gasoline dual fuel engine comprises a gas inlet manifold assembly, an engine body, an exhaust manifold assembly, a gasoline supply system and a hydrogen supply system; the terminals of the gasoline supply system are gas channel jet gasoline nozzles arranged on both sides of each gas inlet manifold of the gas inlet manifold assembly; and the terminals of the hydrogen supply system are hydrogen nozzles arranged on both sides of each gas inlet manifold of the gas inlet manifold assembly. In the hydrogen and gasoline dual fuel engine, a set of hydrogen nozzles and a set of hydrogen supply system of the engine are additionally arranged on the different sides of the gas channel jet gasoline injectors of the gas inlet manifolds of the conventional gasoline engine simultaneously. Under the different working conditions of the engine, hydrogen fuel and gasoline fuel can be used selectively, so the use of fossil fuel is reduced and the service life is prolonged, and harmful emissions of the engine is reduced; the engine can meet the increasingly strict automobile emission rule; meanwhile, due to the selective use of the hydrogen and the gasoline, the shortcoming that the power is insufficient due to a low specific heat value of the hydrogen can be restrained effectively.

The invention discloses a portable automobile exhaust analyzer based on state IV standards, which consists essentially of an ARM microcontroller module, a human-computer interaction module, a sensor module, an external expansion interface module, a combustion analysis and fault diagnosis module and the like, wherein the ARM microcontroller module is respectively connected with the human-computer interaction module, the sensor module, the external expansion interface module and the combustion analysis and fault diagnosis module; and the invention fully complies with relevant national standards, has high accuracy and good dynamics, is applicable to the real-time measuring and analyzing of automobile exhaust for the institutions such as scientific research institutions, exhaust detecting stations, environmental protection departments and the like, and simultaneously is characterized by simple and convenient operation, low cost and the like. The advanced instrument and technology are utilized to strengthen the detection of automobile emission pollutant so as to further accurately monitor the automobile emission pollutant level, thus having important significance in making pollution control policies, improving the ambient air quality and guaranteeing the health of people.

The invention relates to an automobile exhaust pollutant monitoring method integrating an automobile electronic identifier and a video. A RFID chip is arranged in the automobile electronic identifier,the automobile electronic identifier is installed in a sticking manner and tightly attached to the inner side of the front windshield of an automobile, and the automobile electronic identifier comprises automobile information and automobile environment protection information; dual-mechanism recognition equipment and a road fixed remote sensing device are installed at a recognition base station for separately collecting automobile electronic identifiers, traditional license plate information and automobile exhaust information of the passing automobiles. The information of the dual-mechanism recognition equipment and the information of the road fixed remote sensing device are sent to a background management system. According to the automobile exhaust pollutant monitoring method integratingthe automobile electronic identifier and the video provided by the invention, the exhaust pollutant of the automobile in driving can be monitored and analyzed in real time, and the condition that whether the automobile emissions exceed limits can be judged.

The invention discloses a rare earth pervoskite type oxygen-storage material used for automobile emission purification and belongs to the technical field of automobile emission catalyzing. The general formula of the oxygen-storage material is La1-xAxMn1-yByO3, wherein A is one of Sr, Y, Ce, Pr and Nd, B is one of Ni, Fe, Cu and Co, and x and y are mole values. The oxygen-storage material has excellent medium and low temperature oxygen-storage performance and high-temperature thermal stability, still can keep good oxygen-storage performance after being aged at high temperature, has better testing performance than a cerium-zirconium oxygen-storage material widely applied in the prior art, can meet the requirements for low-temperature performance and practical service life of an automobile emission treatment technology in the prior art, can replace the cerium-zirconium oxygen-storage material to be used for automobile emission purification to widen an operation window of an automobile emission purification catalyst and has high popularization value. A technology for preparing the rare earth pervoskite type oxygen-storage material is simple, repeatability is good, and industrial production is easy to achieve.

The invention discloses a technical device which is composed of a light reaction tank (1), photosynthetic bacterium purification liquor (2), a stirring pump (3), a heat-preservation shading cover (4), an automobile emission inlet pipe (5), a filter screen (6) and a purified emission exhaust pipe (7), the device is used for conducting multiple filtration on automobile emission through a water membrane and a biological membrane of the filter screen (6), biological decomposition is achieved through photosynthetic bacteria, and 90%-98% of hazardous substances in automobile emission are purified.

Activated carbon for automobile emission control canisters is disclosed to be heated by modular adsorbent structures within the canister in which activated carbon is bonded to very thin, electrically conductive heating elements, such that all of the carbon in the canister is in close proximity to a heated surface.

The invention discloses an on-line automatic diagnosis and remote monitoring system and method for automobile emission, and relates to an automobile emission monitoring system. The monitoring system comprises an automobile engine (100) and a GSM (global system for mobile communications) sub system (300), and is provided with an engine management sub system (200) and an OBD (on-board diagnostics) remote monitoring sub system (400); the engine management sub system (200) is connected with the automobile engine (100) so as to diagnose the automobile engine (100) on line; and the engine management sub system (200), the GSM sub system (300) and the OBD remote monitoring sub system (400) are communicated through a mobile communication network provided by the GSM sub system (300) in a mode of short massages. The monitoring system provided by the invention can master and control automobile states timely and accurately, is high in timeliness, can form a monitoring network in wide range, is wide in coverage, can save recourse cost, is high in extendibility, and is suitable for all domestic automobile vehicles.

The invention discloses an engine calibration parameter optimization method based on an automobile exhaust emission simulation environment, and the method comprises the steps: (1) constructing an automobile emission test simulation environment based on machine learning, and (2) searching an engine calibration optimal parameter based on the simulation environment. Low-cost and high-efficiency optimization of engine calibration parameters of automobile exhaust emission in a simulation environment is realized. According to the method, the automobile engine parameters are optimized efficiently atlow cost in the simulation environment, and the technical effects of cost reduction and efficiency increase are achieved.

The invention relates to a multi-target energy management method in HEV self-adaptive cruise based on MPC, and belongs to the field of new energy vehicles. The method comprises the steps that S1, performing HEV following process and power traditional system modeling, calculating the required torque of a whole vehicle at the corresponding moment, and considering an engine emission model; S2, considering each comprehensive performance requirement in the car following process, and respectively calculating cost functions corresponding to the car following safety, the fuel economy and the emissionperformance; S3, adopting an MPC algorithm to predict the required torque of the vehicle at the future moment, and therefore a total cost function in a prediction domain is worked out; and S4, according to the total cost function obtained in the S3, minimizing the target function to obtain optimal torque distribution, so that the engine works in a high-efficiency region. The safety, the fuel economy and the low emission performance of the automobile in the following process are considered, and energy consumption and pollution of automobile emissions to the environment can be reduced while thetraffic pressure is relieved.

The invention discloses an automobile emission flow analysis meter with gas collection flexible pipe disengaged detection and a method of the automobile emission flow analysis meter. The analysis meter comprises a microprocessor, a gas collection flexible pipe with a taper pipe, a fan, a CO2 concentration measurement device, an O2 concentration measurement device, a temperature measurement device, a pressure measurement device and a flow measurement device, wherein the fan, the CO2 concentration measurement device, the O2 concentration measurement device, the temperature measurement device, the pressure measurement device and the flow measurement device are connected to the gas collection flexible pipe. The CO2 concentration measurement device, the O2 concentration measurement device, the temperature measurement device, the pressure measurement device and the flow measurement device are respectively and electrically connected with the microprocessor and capable of transmitting measured CO2 concentration data, O2 concentration data, temperature data, pressure data and flow data in automobile emission after dilution to the microprocessor. The CO2 concentration measurement device and the O2 concentration measurement device are connected, and the automobile emission is sent to the O2 concentration measurement device through the CO2 concentration measurement device. According to the automobile emission flow analysis meter with the gas collection flexible pipe disengaged detection and the method of the automobile emission flow analysis meter, defects of an existing device can be effectively overcome. When the gas collection flexible pipe is disengaged, the flow analysis meter will automatically alarm people and remind the people to terminate a test.

The invention relates to a purification device, in particular to an automobile tail gas purification device. The automobile exhaust gas purifying device comprises an exhaust gas inlet pipe, which is connected with the shell of the purifier. Several groups of vertical filter screens are respectively installed between the screens, and a purification liquid is provided in the shell of the purifier. The beneficial effects of the present invention are: after cooling the exhaust gas of the automobile, it is purified in the purification liquid; during the purification process, the flue gas is sheared, stirred and collided horizontally and vertically, which can fully decompose the flue gas particles and make them be purified by the purified liquid. Adsorption, good effect on flue gas purification, avoiding the pollution of automobile exhaust to the environment.

The invention discloses an engine EGR (exhaust gas recirculation) system for lowering the content of NOx in emissions of a diesel engine vehicle. The engine EGR system comprises a cooling water circulation mechanism and an exhaust gas recirculation mechanism, wherein the cooling water circulation mechanism is communicated with a whole vehicle radiator, and regulates the temperature of recirculation exhaust gas under the control of an ECU (electronic control unit) of the vehicle; and an EGR mechanism is configured between an engine exhaust manifold and an engine cylinder head exhaust gas inlet channel. The engine EGR system disclosed by the invention overcomes the defects of the existing EGR system, and can reduce the NOx content in tail gas of the vehicle greatly, meet the requirements of vehicle emission standards and improve the comprehensive performance of the engine.

The invention relates to a toxicity detection method, in particular to the method for detecting the toxicity of fuel oil. Every nation has different kinds of automobile alternative fuel technology, but has the same aims of preventing the exhaustion of the oil fuel and reducing the pollution of automobile emission to the environment. At present, in a plurality of automobile alternative fuels, methanol gasoline and ethanol gasoline attract much attention, and are proved to be well used for the fuel oil of automobiles in actual application; however, the safety of the methanol gasoline and the ethanol gasoline in using processes is a question. Researches on the toxicity of the methanol gasoline and the ethanol gasoline are reported frequently; however, the researches on the direct detection of the toxicity of the gasoline, the methanol gasoline and the ethanol gasoline with luminous bacteria are not reported. The invention provides the method for detecting the toxicity of the fuel oil, which can be used for conveniently detecting the toxicity of the fuel oil.

A method and device for detecting and controlling automobile exhaust. The method for detecting and controlling automobile exhaust comprises the steps of: receiving automobile exhaust data sent from an automobile; analyzing the automobile exhaust data, determining whether the automobile exhaust meets automobile emission standards according to an analysis result; if the automobile exhaust does not meet the automobile emission standards, sending a control instruction to the automobile so as to control automobile exhaust emission. The device for detecting and controlling automobile exhaust comprises a receiving module (10), a determining module (20) and a first transmission module (30). The foregoing method and device are able to detect whether the automobile exhaust meets the emission standards in a random manner or a real-time manner, and in the case that the automobile exhaust emission standards are not met, the present invention may effectively reduce the amount of exhaust emission.

The invention discloses a system and a method for testing automobile air noise and fuel consumption and automobile exhaust emission. The system comprises US (national instruments) data acquisition card, LabVIEW 2014 engineering software, BSWAMPA466 model acoustic pressure meter, a vehicle-mounted tail gas detection device, a notebook computer and other equipment. According to the invention, the automobile wind noise test and the PEMS test are combined for the first time. Firstly, a vehicle-mounted emission testing system is built to obtain second-by-second automobile emission data, and a multi-element nonlinear data model with the wind-noise data acquired by the NI is then established. If one of the data (the air noise data or the fuel consumption and the tail gas emission data) is obtained, the other one data(fuel consumption and tail gas emission data or wind noise data) can be estimated.

The embodiment of the invention discloses an engine development test work condition information acquisition method and device. The engine development test work condition information acquisition method comprises the steps that automobile emission or fuel consumption testing is performed; and the work condition information of an automobile engine in testing is acquired so that engine development testing can be performed based on the work condition information. According to the engine development test work condition information acquisition method and device, the work condition of the engine is acquired according to the complete work condition of the automobile obtained through automobile emission or fuel consumption testing so as to acquire the work condition of the engine close to that of the actual use of the automobile of the user, and thus the method and the device are used for engine development testing.

The invention relates to a vehicle emission monitoring method, device and equipment and a storage medium. The method comprises the following steps: receiving a data acquisition request sent by a terminal; in response to the data acquisition request, determining an automobile bus protocol of a target vehicle; acquiring vehicle emission data of the target vehicle based on the automobile bus protocol, and sending the vehicle emission data and sensing detection data of the target vehicle to a terminal, wherein the vehicle emission data and the sensing detection data are used for being sent to a background server by the terminal so as to monitor the emission condition of the target vehicle according to the vehicle emission data and the sensing detection data. By adopting the method, the stability of automobile emission monitoring can be improved, and the monitoring cost is saved.