12 results about "Automobile emission" patented technology

An automobile emission detection device disclosed by the present invention comprises a circular plate, a cylindrical sleeve penetrates through the circular plate and is rotatably connected with the circular plate through a fixed shaft, the inner wall of one end of the cylindrical sleeve is rotatably connected with a connecting pipe connected with an automobile exhaust pipe, and rectangular through grooves are symmetrically formed in the two ends of the connecting pipe. The inner walls of the rectangular through grooves are movably connected with first L-shaped rods conducting horizontal reciprocating motion, the ends, away from the connecting pipe, of the first L-shaped rods are fixedly connected with the circular plate, and the ends, away from the circular plate, of the first L-shaped rods are fixedly connected with arc-shaped plates matched with the inner wall of the connecting pipe. Connecting rods are fixedly connected to the opposite faces of the two arc-shaped plates, first cylindrical rods are fixedly connected to the opposite faces of the connecting rods, and a gas detector for detecting automobile exhaust is fixedly connected to one connecting rod. The automobile exhaust filtering device has the advantages that the automobile exhaust is filtered, and the air quality is further improved.

The application discloses a kind of carbon tank failure mode mining systems based on big data, the present application relates to automobile emission control technical field, including: three-domain fusion perception layer, for obtaining the multi-source data of carbon tank in the running process, and the multi-source data is uniformly encoded, constructs the three-domain fusion feature space of the physical structure parameter of carbon tank, chemical adsorption characteristic and real-time operation condition.The carbon tank failure mode mining system based on big data, through multistage collaborative screening and evolution type feedback cycle verification framework, without increasing hardware cost, significantly improve the accuracy and early warning capability of carbon tank fault diagnosis, can effectively identify early weak fault characteristics that traditional method is difficult to capture, and accurately predict fault evolution path and remaining useful life.Overall, it realizes the upgrade of carbon tank fault from passive response maintenance to active predictive maintenance, reduces the risk of emission exceeding standard and vehicle operation failure rate caused by carbon tank failure.

1. Name of the product in this design: Teaching aid (automobile emission). 2. Purpose of this design: As an educational tool to demonstrate vehicle emissions. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted. 6. Design 1 is designated as the basic design.

The application relates to the field of automobile emission control technology, in particular to a desulfurization method, equipment, vehicle and medium of an SCR system, which comprises the following steps: in the process of vehicle driving, when it is determined that the conversion efficiency of nitrogen oxides of a selective catalytic reduction (SCR) system is not greater than an efficiency threshold value, the urea injection amount is judged; if the urea injection amount is not greater than a urea injection threshold value under the current engine working condition, at least one regeneration is carried out through a particulate matter trap. Through the method, the phenomenon of "sulfur poisoning" can be accurately diagnosed, and the problem that the conversion efficiency of the SCR system cannot be improved after regeneration is avoided.

The invention relates to the technical field of automobile emission testing, in particular to a flowing type braking particulate matter measuring system and method based on an inertia test bed method, and the method comprises the steps that a cooling air conditioning system provides filtered cooling air; the brake test cabin is provided with a brake, the brake test cabin is arranged on the inertia test bench, and the inertia test bench drives the brake to rotate; the brake test cabin is communicated with the cooling air conditioning system through a pipeline to form a measuring pipeline; a wind speed sensor is arranged at the inlet of the brake test cabin to measure the wind speed at the inlet of the brake test cabin; the measuring pipeline is provided with a monitoring unit for monitoring environment information of the measuring pipeline, and the particulate matter sampling and analyzing equipment is used for collecting brake wear particulate matters and sample gas in the measuring pipeline and analyzing the quantity and the quality of the brake wear particulate matters. According to the scheme, flow type braking particulate matter measurement is carried out, the test authenticity can be improved, external interference is avoided, the aerosol mixing uniformity is guaranteed, and the measurement accuracy is improved.

The invention relates to the field of automobile emission detection, in particular to a loading monitoring method and system for a motor vehicle pollutant emission detection dynamometer, and the method comprises the steps: determining an eddy current machine of the motor vehicle emission detection dynamometer, and collecting a plurality of working currents of the eddy current machine under a preset calibration working condition through a non-contact collection device according to a monitoring instruction; obtaining an initial current value and a corresponding initial loading force, constructing an initial current loading force according to the initial current value and the corresponding initial loading force, querying a loading force corresponding to each working current, and constructing a plurality of groups of working current loading force pairs; constructing a current loading force relation model based on the multiple groups of working current loading force pairs and the initial current loading force pairs, and obtaining a real-time loading force curve of the to-be-detected motor vehicle; and acquiring the rated load force of the preset network platform and the actually measured load force corresponding to the real-time load force curve, comparing to obtain a result, and verifying whether the pollutant emission of the to-be-detected motor vehicle is compliant or not. According to the invention, the reliability of motor vehicle pollutant emission inspection is improved.

The invention relates to an anti-cheating method and system for vehicle emission detection, and relates to the technical field of vehicle emission detection.The method comprises the steps that when a vehicle is in an implicit state, terminal resistance and a first waveform of a CAN bus are collected; injecting a micro-current into the CAN bus, and collecting the voltage to ground of an H pin, the voltage to ground of an L pin and a second waveform of the CAN bus; a bus terminal resistor is disconnected, a pulse signal is injected into the CAN bus, and a reflection waveform is collected; respectively comparing the terminal resistance, the H voltage to ground, the L voltage to ground and the reflection waveform with respective set standards, and comparing the first waveform with the second waveform; and if the terminal resistance, the H voltage to ground, the L voltage to ground and the reflection waveform do not conform to respective set standards and the second waveform has signal attenuation and distortion compared with the first waveform, judging that a cheating device module exists. By measuring and comparing relevant parameters, the difference between the to-be-measured vehicle data and the normal vehicle data is observed, the operation is simple, convenient and rapid, and the time cost is saved.

The utility model discloses a hot end system product assembly with a back pressure self-adaptive adjusting and flow mixing function, and belongs to the technical field of automobile emission hot end products. One ends of the four exhaust manifolds are dispersed and connected with the air inlet flange, the other ends of the four exhaust manifolds are gathered and connected with the front end cone of the catalyst assembly through the connecting flange assembly, a communicating hole is formed in the connecting position of the front end cone and the exhaust manifolds, a flow guide valve is installed on the communicating hole, and an oxygen sensor installation base is arranged on the front end cone. According to the utility model, a clamshell type structure commonly used in the industry is innovatively optimized into an independent four-exhaust-pipe design, so that the problem that the performance of an engine is reduced due to mixed flow is fundamentally avoided. A backpressure self-adaptive adjusting mixed flow blade valve structure is originally introduced at the front end cone gathering position. The structure has the following advantages that the airflow concentration phenomenon can be effectively dispersed, the opening and closing amount can be automatically adjusted through airflow pressure, and airflow distribution can be intelligently adjusted and controlled.

The invention discloses an automobile emission monitoring method and system based on multi-source emission data fusion, and relates to the technical field of motor vehicle exhaust emission monitoring, and the method comprises the steps: carrying out the multi-source data fusion according to the road surface data, meteorological data, driving state and engine operation state of historical vehicles, and then constructing an emission simulation model; the model outputs a qualified value range of each exhaust gas content in the exhaust emission amount; the actual measurement value of each gas content in the tail gas emission amount under the current actual condition is collected in real time, and is compared with the qualified value range of each exhaust gas content in the tail gas emission amount output according to the emission simulation model for analysis, whether each exhaust gas content is qualified is judged, and if an unqualified or abnormal item exists, the tail gas emission amount is judged to be qualified. Labeling the text description and converting the text description into a structured text description; according to the method, an emission system causal graph is constructed, corresponding abnormal reasons are positioned in the emission system causal graph according to structured text description, potential faults possibly existing in the vehicle are analyzed, the monitoring accuracy is improved, and the system false alarm rate is reduced.

The present application relates to the technical field of automobile emission detection, and particularly relates to a hydrocarbon mass testing method and a methanol fuel automobile carbon canister emission testing method. The present application connects the atmospheric port of the carbon canister to a micro closed chamber, continuously measures the total hydrocarbon in the closed chamber using FID, and synchronously measures the methanol concentration in the same gas using FTIR. Based on the measurement results of FID and FTIR, the signal separation of non-methanol hydrocarbons and methanol is realized, the problem that the FID response is inaccurate and the alcohol and hydrocarbon emissions cannot be distinguished in the prior art is solved, and the accuracy and reliability of the methanol fuel automobile evaporation pollutant emission testing are improved.

The invention relates to the technical field of automobile emission monitoring sensors, in particular to a low-carbon emission automobile intake particulate matter on-line monitoring sensor with a self-cleaning function, which comprises a probe assembly, a signal transmission line, an intake signal analysis assembly and a connecting plug. The probe assembly is combined with an alloy insertion core through a ceramic chip, self-cleaning of an optical window is achieved through heating of a platinum resistor, and the temperature is accurately controlled through a fuzzy PID algorithm. The front end of the probe is nested with a nano-zirconia sleeve porcelain rod, so that heat transfer is blocked, and the optical fiber performance is protected. The sensor mounting base is in threaded connection with the probe assembly, thereby facilitating disassembly and cleaning. Through the structure optimization and heating control technology, the pollution problem of the optical window is solved, the stability of the sensor in a high-temperature environment is improved, and the service life of the sensor in the high-temperature environment is prolonged.

The utility model discloses a device for heating circulating water by using heat emitted by an automobile. The device comprises a water storage system, a circulating system, a power system and a control system, the circulating system and the power system are arranged, heat emitted by an engine or a new energy automobile driving motor during working is recycled to heat circulating water, a driver and passengers can drink hot water anytime and anywhere in an automobile, the requirement of vast automobile owners for drinking hot water in time in the automobile driving process is met, and the energy-saving and environment-friendly effects are achieved. The utilization rate of heat generated when the automobile engine or the new energy automobile driving motor works is increased, the requirement that an automobile owner needs to drink hot water anytime and anywhere is effectively met, and therefore harmful heat generated when the engine or the new energy automobile driving motor works is converted into effective energy to heat circulating water.