46 results about "Vehicular Emissions" patented technology

An evaporative emissions control system for reducing the amount of fuel vapor emitted from a vehicle includes a canister containing a sorbent material and a cartridge heater disposed at least partially within the canister in direct contact with the sorbent material. Electrical terminals for applying power to a heating element within the heater are disposed external to the canister. At least one heat sink may be included within the canister in direct contact with the heater. A method of manufacturing an evaporative emission control system that includes a cartridge heater disposed in a canister is also presented.

The present disclosure relates to a particle detection method, device and exhaust gas detection system. The method includes: during the driving process of the vehicle to be tested, a plurality of target sensors assembled in the particle detection device contained in the exhaust gas detection system simultaneously discharge the vehicle to be tested. According to the vehicle driving information of the vehicle to be tested to determine its driving state; according to the driving state, the vehicle driving information and the pre-trained target detection result prediction model, the above-mentioned multiple target sensors collect Data fusion is performed on the detected particulate matter detection data to obtain the particulate matter emission data of the vehicle under test during driving. It can simultaneously detect the particulate matter emission of the vehicle through multiple sensors during the driving process of the vehicle, and fuse the detection data according to the driving condition of the vehicle to improve the accuracy of the particulate matter emission detection results during the vehicle exhaust emission road test.

The invention relates to a self-adaptive mixed gas control method for a gasoline direct injection engine. According to the self-adaptive mixed gas control method for the gasoline direct injection engine, a self-adaptive mixed gas control function is additionally achieved for online self-adaptive adjustment through special self-adaptive mixed gas control software according to the air-fuel ratio deviation characteristic and different working conditions; the fuel injection quantity calculated by an ECU is corrected by using the self-adaptive value as the parameter, so that the emission performance of a vehicle is improved; and self-adaptive values obtained through learning under different working conditions are stored in an EEPROM register of the ECU. Compared with the prior art, by adoption of the self-adaptive mixed gas control method for the gasoline direct injection engine, the situation that the air-fuel ratio of a system becomes poor due to errors accumulated in a long time can be avoided to a certain extent, the closed-loop control quantity for the air-fuel ratio is learned and corrected, and the situation that the air-fuel ratio is poor due to component abrasion and characteristic deviation of sensors and actuators after the vehicle travels for a long time is avoided to a certain extent; and the situation that emission becomes poor due to changes of oil added into the vehicle can also be avoided to a certain extent through the self-adaptive mixed gas control function, and finally, a good air-fuel ratio closed-coop effect can be achieved rapidly when the vehicle starts again after being stopped.

The invention provides a post-processing temperature control device and method for diesel engine-in-the-loop. The EIL can accurately simulate the engine running state under the operating condition of the whole vehicle on the engine bench, and the engine running speed and load can be inputted through The required vehicle speed, transmission ratio, transmission efficiency and other parameters are calculated, and the patented device can be used to simulate the situation that the post-processing system is blown by the wind during the driving process of the vehicle on the engine bench, and realize the post-processing system on the engine bench and the installation. The state of the vehicle is close, so that the evaluation of pollutants emitted by the whole vehicle can be carried out on the engine bench in the early stage of development. The invention creates the temperature control device and method, improves the accuracy of the EIL method for testing exhaust pollutants, and can use this method to control the exhaust gas temperature entering the after-treatment system of the whole vehicle on the bench. Combined with the EIL test system, it can be Evaluate vehicle emission levels in the early stages of development.

The invention discloses a vehicle emission testing method and device. Wherein, the method includes: obtaining nitrogen and oxygen measurement results collected by a nitrogen and oxygen sensor; according to the nitrogen and oxygen measurement results and the difference between the nitrogen and oxygen measurement of the vehicle-mounted emission test system and the nitrogen-oxygen sensor obtained in advance, the vehicle-mounted emission test system is used for the entire vehicle to carry out the test. The measured measurement results are estimated to obtain a measurement estimate. The invention solves the technical problems of high test cost and long test period caused by the use of special emission test equipment in the related art.

A mobile garbage treatment system and method using gas-powered vehicles, including a pulverizer, a three-stage garbage incinerator, a flue gas cooling system, and a flue gas treatment system. The treatment method is: a, garbage crushing and ignition preheating; b , drying and dehydration: the crushed garbage will enter the drying bin for drying and dehydration; c, anaerobic pyrolysis; d, waste combustion treatment; e, flue gas cooling treatment; f, flue gas purification: the cooled flue gas The flue gas online monitoring system will be discharged through the chimney after the monitoring is up to standard. The present invention has the following advantages: (1) natural gas or hydrogen can be delivered to the combustion chamber through pipelines, and the temperature conditions required for garbage combustion can be quickly established in the initial stage of combustion in the combustion chamber, and the vehicle emission is low; The garbage reduction treatment plan realizes real-time purification of garbage, reduces operating costs, and reduces environmental pollution; (3) Use natural gas or hydrogen as vehicle power to reduce the pollutant emission level of the vehicle itself.

Apparatus for removing Greenhouse Gases from combustion of fossil and non-fossil fuels, including hydrocarbons and biomass fuels, is disclosed. The apparatus includes: a vessel containing a liquid medium; a circulation system with a pump; a plurality of positively charged metal plates, each with a plurality of apertures; a negatively charged discharge pipe connected to the circulation pipe; a refrigeration system on the outside of the vessel; and a power source. The apparatus uses the process of electrolysis and electrostatic induction to form covalent bonding among various constituents of Greenhouse Gases and thereby converts and condenses all or most of Greenhouse Gases in the emission. The apparatus has a working prototype. The apparatus can be used in converting and condensing all or some Greenhouse Gases from emissions of power plants and all types of industrial plants which generate Greenhouse Gases as emissions, as well as from various sources of vehicular emissions.

The invention relates to a control method that allows the mean quantity of nitrogen oxides per kilometer covered emitted by a vehicle fitted with an internal combustion engine associated with a post-treatment system to be kept below a predefined fixed threshold, for any journey made by the vehicle. The mean quantity emitted over a fixed elementary distance that has just been covered by the vehicle is calculated iteratively, together with a long-term conformity factor which is equal to the mean quantity emitted over the entire distance covered since the start of the journey. When it is found that the long-term conformity factor is above the threshold, the engine and / or the post-treatment system is regulated in such a way as to obtain, over the next fixed elementary distance, a mean quantity of nitrogen oxides per kilometer that is lower than the threshold value FC, for example equal to 90% of the threshold, whatever the engine operating point. Thus, the long-term conformity factor converges towards the threshold.

The invention discloses a carbon payment emission charging method based on dynamic user balanced traffic allocation, which comprises the following steps: determining a modified road section emission model based on average speed; determining a dynamic network loading method based on road section supply and demand; User-optimized traffic emission model; determine the carbon payment charging method, set the charging model based on the emission threshold of the road section, and set the corresponding emission threshold for each road section. emissions charges. The present invention establishes the relationship between the traffic allocation model and the vehicle emission model, changes the traveler's decision-making through the charging method, reduces the travel demand to a certain extent or prompts the traveler to choose a travel mode with less emission when considering multi-mode traffic distribution , thereby reducing road network emissions.

The invention discloses a swirl atomizing structure of a single-hole atomizing oil sprayer and further discloses the single-hole atomizing oil sprayer. The swirl atomizing structure comprises a pipe body, a valve seat, a swirl piece and a metering piece, a first mounting groove is formed in the top end of the valve seat, a second mounting groove is formed in the bottom end of the valve seat, and the first mounting groove and the second mounting groove communicate with each other through a valve hole. The swirl piece is tightly attached to the bottom face of the second mounting groove, and themetering piece is tightly attached to the bottom face of the swirl piece. A swirl hole is formed in the swirl piece, and a metering hole is formed in the metering piece. A plurality of swirl grooves are formed in the swirl piece. After a fluid passes through the valve hole, under the effect of the swirl grooves, a fluid beam is impacted to form a turbulent flow or a swirl flow distributed in the swirl groove direction, then when the fluid passes through the metering hole, the atomizing effect is obviously improved, the fluid is more thoroughly atomized, the particle size of atomized particlesis more fine, the fuel oil atomizing effect is improved, mixing and sufficient combustion of fuel oil and air are facilitated, carbon is prevented from being accumulated in a cylinder, and the vehicleemission cleanness is improved. The single-hole atomizing oil sprayer has the beneficial effects.

The invention provides a vehicle NO x The emission data processing method involves the technical field of vehicle exhaust detection data processing, including: obtaining vehicle data collected by vehicle exhaust detection equipment; eliminating invalid data and calculating non-directly uploaded data to obtain preprocessed data; The data is cut; the preprocessed data fragment is cut with the data fragment duration threshold point as the cutting point to obtain the cut data fragment; the fragments with discontinuous water temperature at adjacent points and the vehicle load exceeding the vehicle threshold are eliminated; the effective data fragments are processed according to the vehicle speed Mark and sample to obtain valid sample data fragments; when the sample valid data fragments meet the PEMS cyclic reconstruction requirements, the sample valid data fragments are spliced, and the NO of the spliced ​​data is calculated x Emissions, the above data processing methods can quickly identify valid data and ensure NO x Reliability and confidence in emissions results.