1830 results about "Car passenger" patented technology

The invention discloses a point cloud differential defect detection system and detection method based on multi-feature fusion, which are mainly used for high-precision detection of surface defects of a side wallboard of a railway passenger car, and the method comprises the following steps: obtaining datum point cloud data through a designed standard side wallboard model of the railway passenger car, and collecting real-time point cloud data through a laser scanner; preprocessing the obtained point cloud data; calculating the difference between the real-time point cloud and the reference point cloud by adopting a difference method for fusing geometric features such as Euclidean distance, curvature and normal vector, namely calculating the Euclidean distance difference, curvature difference and normal vector difference between the reference point cloud and the real-time point cloud; and a comprehensive abnormal score is generated by further combining a dynamic weight fusion mechanism, and different region characteristics (such as a plane, a curved surface and an edge region) are adapted through dynamic threshold adjustment. According to the method, the defect region is segmented through the clustering algorithm, and the defect area and depth are quantified. The method has the advantages of high detection precision, strong adaptability and good real-time performance, and is suitable for complex surface defect detection in industrial production.

A combined floor assembly and energy storage device for an electrically driven passenger car includes a floor assembly on the lower face of which an energy storage device of an electric drive of the passenger car is arranged. A holding element, by which a rear end region of the energy storage device is held on the lower face of the floor assembly, and a rear cross-member, which is arranged on the lower face of the floor assembly and behind the energy storage device in the vehicle longitudinal direction are provided. In order to provide a combined floor assembly and energy storage device which offers especially rigid support for the rear cross-member even in a vehicle with a purely electric drive and in which, additionally, the energy storage device is fixed to the rear end on the lower face of the floor assembly in a particularly stable manner, the energy storage device is secured to the rear cross-member by way of the holding element.

The invention relates to the field of navigation signal processing, and discloses a passenger car battery temperature control intelligent regulation and control method and system based on multi-source sensor data, environment data and battery operation state data are acquired by constructing a multi-source sensing array, and fusion processing and feature extraction are performed on the acquired data by using an edge calculation method; analyzing and predicting the charging and discharging behaviors of the battery based on the extracted characteristic parameters, judging the charging and discharging states of the battery, dynamically optimizing the switching threshold value of the refrigerating or heating mode of the battery, switching the mode according to the optimized switching threshold value, and performing matching analysis on the photovoltaic power generation energy and the temperature control energy consumption, so as to determine the temperature control energy consumption of the battery. According to a matching analysis result, an exclusive temperature control matrix is generated through a geographic position and meteorological data, and time-sharing gradient control is performed by using an adaptive PID control algorithm in combination with instantaneous wave cloud characteristics of photovoltaic energy storage, so that customized temperature control strategies can be provided for different environmental conditions, temperature fluctuation is avoided, and the temperature control stability is improved.

The invention relates to the technical field of energy power, in particular to a vehicle power system based on a solid hydrogen pool, a passenger vehicle and a control method. The vehicle power system comprises a power driving module, a fuel cell module, a solid hydrogen pool module, a heat dissipation module and a whole vehicle control module. The fuel cell module comprises a cell stack unit, a hydrogen feeding and discharging unit, an air feeding and discharging unit and a tail discharging unit, and the cell stack unit is electrically connected with the power driving module. The solid hydrogen pool module comprises a solid hydrogen storage unit, a water supply unit and a hydrogen release buffer unit. The heat dissipation module is in butt joint with the cell stack unit and the solid hydrogen storage unit, and the whole vehicle control module is in communication connection with the power driving module, the fuel cell module and the solid hydrogen pool module. The passenger vehicle comprises a vehicle power system. The fuel cell module based on the solid hydrogen pool module is used for stably supplying power to the power driving module, so that power is provided for the passenger car, and the endurance requirement of the passenger car is met.

The invention discloses an intelligent networked passenger car network system architecture design method based on link redundancy, which comprises the following steps of: constructing a CAN (Controller Area Network) line network module and a vehicle-mounted Ethernet module, and connecting a plurality of control nodes in a passenger car to obtain a connection link; judging connection link connectivity and transmission quality of the plurality of control nodes by utilizing a heartbeat packet mechanism to obtain link quality; and carrying out link switching according to the link quality to obtain the network system architecture of the intelligent networked passenger car. The invention relates to the technical field of intelligent traffic, and solves the technical problems of low error-tolerant rate, insufficient reliability and easy threat to driving safety of the existing single-chain design or double-chain design during link fault.

The invention belongs to the field of metal materials, and particularly relates to high-elongation and high-forming passenger car steel and a production method thereof.The steel plate is mainly suitable for manufacturing passenger car structural parts, the steel comprises the following chemical components of C, Si, Mn, Al, V, Ta, Bi, Sb, Ni, Pt and Y, P is limited to be smaller than or equal to 0.015%, S is limited to be smaller than or equal to 0.005%, N is limited to be smaller than or equal to 0.006%, and the balance Fe and inevitable impurities. The steel plate is obtained by adopting hot rolling, EPS, continuous annealing and finishing processes, the processes of pickling and cold rolling are reduced, the production process is simplified, the production cost is reduced, and the environment is not polluted.

The invention belongs to the field of metal materials, and particularly relates to high-formability steel for a passenger car and a production method of the high-formability steel, the steel plate is mainly suitable for manufacturing passenger car structural parts, the steel comprises the following chemical components: C, Si, Mn, Al, Ti, Ta, Bi, Sb, Ni, Pt and Y, P is limited to be less than or equal to 0.015%, S is limited to be less than or equal to 0.005%, N is limited to be less than or equal to 0.003%, and the balance is Fe and inevitable impurities. The steel plate is obtained by adopting hot rolling, EPS, continuous annealing and finishing processes, the processes of acid pickling and cold rolling are reduced, the production process is simplified, and the environment is not polluted.

The invention relates to a shared automobile passenger and freight co-transport method based on a vehicle-mounted freight unmanned aerial vehicle technology, the method combines an unmanned aerial vehicle and a shared automobile to carry out passenger and freight co-transport, the unmanned aerial vehicle is used for processing delivery time-sensitive lightweight packages, and the shared automobile assists the unmanned aerial vehicle in completing a package distribution task while completing passenger transport. Comprising the following steps: constructing an unmanned aerial vehicle-shared automobile passenger and freight co-transport path optimization objective function and constraint according to an unmanned aerial vehicle-shared automobile passenger and freight co-transport mode, and selecting a decision variable; and carrying out shared automobile path planning based on the target function and the constraint, and generating an unmanned aerial vehicle-shared automobile passenger and freight co-transportation scheme according to a path planning result. Compared with the prior art, the invention provides a logistics form of shared automobile-unmanned aerial vehicle passenger and freight co-transportation, and realizes freight network flow expansion cost minimization on the premise of ensuring passenger transportation service efficiency and level.

The invention belongs to the field of metal materials, and particularly relates to high-strength passenger car steel and a production method thereof.The steel plate is mainly suitable for manufacturing passenger car structural parts, the steel comprises the chemical components of C, Si, Mn, Al, Nb, V, Ta, Bi, Sb, Ni, Cr, Pt and Y, P is limited to be smaller than or equal to 0.015%, S is limited to be smaller than or equal to 0.005%, N is limited to be smaller than or equal to 0.006%, and the balance Fe and inevitable impurities. The steel plate is obtained by adopting hot rolling, EPS, continuous annealing and finishing processes, the processes of pickling and cold rolling are reduced, the production process is simplified, the production cost is reduced, and the environment is not polluted.

The invention relates to the technical field of passenger car body framework assembly, and discloses a passenger car body framework assembly tool and method, a mould is provided with a plurality of positioning blocks, the positioning blocks are used for positioning a car body framework, one side of each positioning block is provided with an electromagnetic attraction structure, and the mould fixes the position of the car body framework through the positioning blocks and the electromagnetic attraction structures; the jig frame serves as a jig supporting frame, the jig is fixed to the jig frame, a plurality of jacking structures are arranged on the jig frame, setting point positions of the jacking structures are correspondingly located at key stress point positions of the vehicle body framework, after the vehicle body framework is installed and welded, the electromagnetic attraction structure is powered off, the framework is jacked up through the jacking structures, and demolding is completed; by adopting the mode of combining adsorption fixation of the electromagnetic adsorption structure and multi-point ejection of the jacking structure, rapid positioning during assembly of the vehicle body framework and rapid ejection demolding after assembly are achieved, the problems that a traditional clamp is inaccurate in positioning, the framework deforms and the like when a large framework is assembled are solved, and the assembly efficiency and precision are greatly improved.

The steel comprises the following chemical components in percentage by weight: 0.062 to 0.092 percent of C, 0.10 to 0.35 percent of Si, 1.53 to 1.87 percent of Mn, 0.18 to 0.34 percent of Al, 0.035 to 0.055 percent of V, 0.062 to 0.076 percent of Ti, 0.25 to 0.45 percent of Mo, 0.021 to 0.035 percent of W, 0.022 to 0.068 percent of Bi, 0.050 to 0.110 percent of Sb, 0.012 to 0.020 percent of Y, 0.0031 to 0.0042 percent of Ca, 0.1153 to 0.1174 percent of Mg, 0.30 to 0.60 percent of Al + Si, 1.2 to 2.0 percent of C / V, 0.1190 to 0.1211 percent of Ca + Mg, less than or equal to 0.010 percent of P, less than or equal to 0.005 percent of S, less than or equal to 0.006 percent of N and the The yield strength of the steel plate ranges from 556 MPa to 618 MPa, the tensile strength ranges from 660 MPa to 735 MPa, the transverse elongation A is larger than or equal to 26%, the hole expansion rate ranges from 70% to 85%, transverse cold bending is conducted by 180 degrees, D = a, and the steel plate is qualified. The steel plate has excellent mechanical performance and high forming performance.

The invention discloses a passenger car component fault detection method and system based on visual prompt and a visual large model, and the method comprises the steps: carrying out the position marking of a target in each sample image for each type of component sample image set, splicing a panoramic image, and generating a mask image; describing the exception type of each type of part and the details of each exception type through the exception description text; extracting multi-scale image features of the panoramic image and the mask image, and fusing the multi-scale image features to obtain visual prompt features; extracting a multi-scale image feature of the to-be-detected part image, fusing the multi-scale image feature with the visual prompt feature to obtain a multi-scale image feature of the to-be-detected part, inputting the multi-scale image feature into the part positioning model, and positioning a target part image; and fusing the visual features of the target part image with the text features of the corresponding abnormal description text by using a visual large model, and predicting and outputting a fault detection result. According to the invention, precise part positioning and fault detection can be realized.

A roof for a motor vehicle, in particular for a passenger car, having a roof skin which is disposed above a roof substructure and having a sensor system which has at least one sensor module having at least one environment sensor for detecting a vehicle environment. The roof has a cooling device for the sensor module, said cooling device having a compressed-air device by which compressed air is applied to the sensor module.

The invention relates to the technical field of intelligent traffic and carbon treatment, in particular to a passenger car carbon emission monitoring and regulation system and method based on multi-source spatio-temporal data. According to the method, the multi-source spatio-temporal data is preprocessed and uniformly mapped, so that the problem of data scattering and irregularity is solved. And a vehicle-space unit-time period three-dimensional carbon emission calculation model is constructed, and accurate calculation of carbon emission of single-vehicle single-trip and high-carbon emission hot spot positioning are realized. And finishing differentiated division of the user groups by adopting a clustering algorithm. A dynamic early warning threshold value is generated based on an early warning threshold value prediction model, a regional carbon emission target and historical data, and false alarm and missing alarm are reduced. An early warning type-policy tool-adaptive object mapping rule base is established, the regulation and control strategy is generated in combination with early warning signals and real-time data, and automatic and accurate generation from problem recognition to the regulation and control strategy is achieved. Policy execution effect data is utilized to optimize model parameters, early warning threshold values and mapping rules, monitoring, early warning, regulation and control are formed, closed-loop management is optimized, and precise regulation and control are achieved.

The invention relates to the technical field of rail transit monitoring, and discloses a multi-sensor fusion rail transit electric passenger car bogie dynamic performance monitoring method. The method comprises the steps that multi-source heterogeneous sensing data such as bogie vibration acceleration time sequence signals, wheel-rail contact force distribution data, bearing temperature gradient data and structural strain field data are collected; analyzing the vibration signal to extract a frequency band energy feature vector, performing spatial gridding mapping on the contact force data to generate a distribution matrix, and performing time-space alignment fusion on the two to form a primary fusion feature set; positioning a bearing temperature anomaly region through a deep convolutional network, and generating a secondary fusion feature set in combination with a structural strain concentration coefficient; and inputting the two-stage feature set into a dynamic performance evaluation model, outputting a performance degradation index set of scores of axle box bearing wear degree, framework fatigue cumulant, wheel set tread damage and the like, generating a maintenance priority sequence and triggering a preventive maintenance instruction according to the performance degradation index set, and realizing accurate monitoring and efficient operation and maintenance management and control of the dynamic performance of the bogie.

The invention is suitable for the technical field of automobile aerodynamics, and provides a passenger car active opening and closing hubcap device based on a flexible cable structure, the passenger car active opening and closing hubcap device comprises a bottom plate and a cover plate, a plurality of bottom plate through holes are annularly formed in the bottom plate, and cover plate through holes are annularly formed in the corresponding positions of the cover plate; a plurality of sliding baffles are annularly mounted on the inner side of the bottom plate; the control module comprises a reel, a driving module used for driving the reel to rotate is further arranged in the driving bin, a plurality of flexible cables are wound on the reel, the number of the flexible cables is the same as that of the sliding baffles, one end of each flexible cable is fixed in a rope tying opening formed in the reel, and the other end of each flexible cable is fixed in a rope tying opening formed in the reel. The free end of each flexible cable penetrates through a cable outlet formed in the bottom plate driving bin and is fixed in a baffle cable tying hole in the sliding baffle. The device is compact and stable in structure, high in mechanism reliability, stable in structure of the driving module and the control module, high in space utilization rate and low in manufacturing cost.

An energy-store floor assembly for an electrically drivable passenger car, the energy-store floor assembly having a floor assembly, on the bottom side of which an energy storage device of an electric drive of the passenger car is fixed. Lateral side receptacles, in the region of which a separate fastening point is located to which the energy storage device can be fastened, are positioned on the floor assembly. A modular system for manufacturing such an energy-store floor assembly is provided.

The invention belongs to the field of metal materials, and particularly relates to 1430MPa-grade steel for passenger cars and a production method of the 1430MPa-grade steel, and the steel plate is mainly suitable for manufacturing passenger car structural parts. The steel comprises the following chemical components: C, Si, Mn, Al, Nb, V, Ta, Bi, Sb, W, Cr, Pt, Zr and Y, Al / Si is 1.0-2.0%, Ta + Zr is 0.040-0.048%, P is limited to be less than or equal to 0.015%, S is limited to be less than or equal to 0.005%, N is limited to be less than or equal to 0.006%, and the balance is Fe and inevitable impurities. The steel plate is obtained through the hot rolling, EPS, continuous annealing and finishing processes, the pickling and cold rolling processes are omitted, the technological process is simplified, and the environment is not polluted.

The invention provides a passenger car battery low-temperature heating test system, method, device and equipment and a medium, and the system comprises a passenger car battery low-temperature heating test system which is composed of a whole car domain controller, a control assembly and a BMS battery management subsystem, and the method comprises the steps: carrying out the whole car power-on of a target passenger car according to a passenger car test request for the low-temperature rapid heating of a battery; the battery temperature and the vehicle running state of the target passenger car are obtained, the battery temperature is judged based on the temperature interval, and at least one judgment node of heating needing and heating not needing is obtained; when the judgment result is that heating is needed, determining a heating gear and a target temperature according to the temperature interval of the battery temperature; and heating the target battery to the target temperature according to the heating gear. The device has the beneficial effects that the power battery of the vehicle can be rapidly heated in an extremely low temperature environment, and the self-heating test of the test battery is realized.

A vehicle roof, in particular for a passenger car, the vehicle roof having a roof skin which forms a visible outer surface of the vehicle roof, and a sensor unit having at least two environment sensors for detecting a vehicle environment, the sensor unit being disposed below the roof skin and attached to a carrier and may have a support for the at least two environment sensors, the support being connected to a thermal management system. An electrical insulation element is disposed between each of the environment sensors and the support, the electrical insulation elements thermally coupling the respective environment sensors and the support.

The invention belongs to the field of passenger car blind area early warning, and particularly discloses a passenger car blind area early warning method, system and device and a storage medium, a visual field missing area caused by vehicle body posture change is recognized by comparing visual field coverage areas of a vehicle under a straight-going working condition and a turning working condition, a dynamic blind area can be accurately recognized, and the passenger car blind area early warning efficiency is improved. The problem of blind area omission caused by static modeling is avoided, the comprehensiveness and accuracy of blind area recognition are ensured, and meanwhile, when the visual field missing area is recognized, real-time recognition and motion trail capture of a dynamic target are carried out in an adjacent visible area focused on the periphery of the visual field missing area. And early warning information is generated in time based on potential conflict analysis between the captured target movement track and the vehicle driving track, so that the early-stage discovery capability of potential conflicts is improved, a driver has more time to take danger avoiding measures, traffic accidents caused by blind areas are effectively prevented, and the safety of pedestrians, non-motor vehicles and other vehicles is guaranteed.

A flying vehicle that is compact and portable and can be carried over the roof rack of a passenger car. The flying vehicle includes an upper chassis and a lower chassis removably mounted to the upper chassis. The lower chassis is positioned below the upper chassis. Eight rotors, a battery pack, and a control unit are mounted to the upper chassis. A seat for the rider is mounted to the lower chassis directly below the battery pack. Such a position of the seat allows a rider to egress from the vehicle safely without requiring the vehicle to land and turn off the rotors.

The invention discloses a subway electric bus braking training system and method based on online fault diagnosis, the system comprises a fault injection system and a braking platform, the fault injection system comprises a fault operation platform, and the fault operation platform is used for sending a real object fault signal and a software simulation fault signal; the braking platform comprises a local console, and the local console is used for receiving the real object fault signals and the software simulation fault signals and controlling and executing real object fault actions and software simulation fault actions so as to achieve training of hardware braking faults and software braking faults of the subway electric passenger cars. According to the invention, the purpose of teaching and training metro workers can be achieved, and the comprehensive fault processing capability of the metro workers can be improved.

A method and system for reducing the chromatic aberration in an image, more particularly using a data processing apparatus or system for reducing the chromatic aberration in an image of an environment that has been captured by an image capturing sensor and which is supposed to be displayed to a user. In particular, this method can be used on an image that has been captured by a wide-angle camera with the aim of displaying it to the driver of a vehicle (passenger car, transport truck, motorcycle, etc.) in order for instance to replace the internal and external mirrors of the vehicle.

The invention relates to the technical field of passenger car evaluation, in particular to an electric passenger car motion sickness comfort evaluation method and system. The method comprises the following steps: the same fixed driver continuously drives the tested electric passenger car to a target number of turns according to a preset cycle condition; respectively fixing the motion sickness simulation robots on a co-driver seat and a rear row right seat of the tested vehicle; for the same driver, the same tested vehicle and the same cycle condition, the test steps are repeated for multiple times, and the arithmetic mean value of data collected for multiple times is taken as a multi-dimensional physical stimulation vector; and inputting the multi-dimensional physical stimulation vector into a motion sickness prediction model which is pre-calibrated and subjected to cross validation, outputting predicted motion sickness scores of a co-driver position and a rear row right side position, and if the predicted motion sickness scores are higher than a preset comfort threshold score, judging that the motion sickness comfort of the detected electric passenger vehicle at the position is unqualified, otherwise, judging that the motion sickness comfort of the detected electric passenger vehicle is not qualified. And reversely positioning the key physical stimulation component causing the over-threshold. According to the technical scheme, the motion sickness comfort of the electric passenger car can be accurately evaluated and traced.

The all-position welding tool comprises a base, at least one long-strip-shaped hole is formed in the base, supporting beams fixed to the base are arranged on the two sides of the long-strip-shaped hole, and at least one supporting piece is arranged between every two adjacent supporting beams. The supporting piece is slidably connected with the base through a sliding groove formed in the side face of the long-strip-shaped hole, a first locking piece is arranged between the supporting piece and the base, a first stopping piece used for making contact with one side of the double-combined beam is arranged at the top of the supporting piece, the supporting beam is provided with a first horizontal telescopic component, and a second stopping piece is arranged at one end of the long-strip-shaped hole. One end of the supporting beam is provided with a first horizontal telescopic component, the other end of the supporting beam is provided with a second horizontal telescopic component perpendicular to the first horizontal telescopic component, the second stopping piece and / or the second horizontal telescopic component are / is slidably connected with the base through a sliding groove, and a second locking piece is arranged between the second stopping piece and / or the second horizontal telescopic component and the base. By the adoption of the welding tool, the production efficiency is improved, and the labor intensity is reduced.

The invention discloses a vehicle-mounted track inspection system detection method, and relates to the technical field of tracks, an inspection starting point is set in a to-be-inspected line, a complete track image of the to-be-inspected line is pre-collected, a plurality of fastener images are generated through cutting with a fastener as the minimum unit, and track historical data are obtained; the track historical data are deployed on a cloud service side and a local inspection side at the same time; a vehicle-mounted track inspection system collects track real-time images, then the track real-time images are matched with an inspection starting point and cut into a plurality of fastener real-time images, region division is conducted on each fastener real-time image, track historical data of a local inspection side are called to conduct pixel grading comparison on different regions, and abnormal region images are screened; and incremental data is generated and transmitted to the cloud service side, track historical data is called to carry out refined detection on the abnormal region image, and a disease detection result is output. According to the invention, the problems of insufficient local detection performance, data accumulation and detection delay under high-speed operation of the electric passenger car are solved, and real-time track disease inspection is realized.

The invention discloses a passenger car partition air conditioner self-adaptive adjustment method based on in-car multi-source signal perception, relates to the technical field of passenger car air conditioner adjustment, and aims to solve the problem of poor passenger car partition air conditioner adjustment efficiency. According to the method, multi-source environment data in a carriage is collected, unified scale processing is carried out in combination with nonlinear compression, the data is mapped to a three-dimensional space to construct a microenvironment topology tensor dynamically updated along with time, and environment states of different areas are accurately expressed; constructing a space graph structure based on state similarity and disturbance sensitivity weight, executing clustering division and correcting boundaries, and forming thermal environment partitions with adjustment values; a fuzzy adjustment participation multi-channel control structure is constructed for each partition, a control factor is dynamically generated according to an error signal and a disturbance trend, an adjustment result is output and mapped into an air conditioner equipment control parameter, partition cooperative adjustment of air supply, air exchange and purification is achieved, and the space response capacity and comfort matching level of an air conditioner control system are improved.

The invention discloses a passenger car AQS intelligent air quality management system and a control method thereof, and the system comprises an in-car PM2.5 sensor, an in-car CO2 sensor, an in-car VOCs sensor, an in-car temperature and humidity sensor and an in-car particulate matter particle size sensor. The in-vehicle PM2.5 sensor, the in-vehicle CO2 sensor, the in-vehicle VOCs sensor, the in-vehicle temperature and humidity sensor and the in-vehicle particulate matter particle size sensor are connected to the controller, and the controller is further connected with an air purification module, a ventilation fan and an air conditioning system. Dynamic cooperative monitoring of multiple pollutants (PM2.5, CO2, VOCs, temperature and humidity, ultraviolet intensity and particle size distribution) is achieved, the comprehensive air quality index in the vehicle is automatically adjusted according to monitored data, the air quality in the vehicle is greatly improved, six indexes such as PM2.5, CO2 and VOCs can be monitored in real time, energy is saved by 30% or above compared with a traditional scheme, CO2 response time is shortened by 82.2%, and the system is suitable for popularization and application. The PM2.5 purification efficiency is improved by 27.3%, an air conditioning system is adjusted according to needs, and more energy is saved.

The invention belongs to the technical field of expressway passenger and truck lanes, and particularly relates to an expressway passenger and truck lane dynamic allocation optimization method which comprises the following specific steps: S1, data acquisition and preprocessing: integrating ETC and radar multi-source data, cleaning and fusing original data, and accurately distinguishing small passenger cars and trucks by using an advanced vehicle type recognition technology, so as to obtain a new vehicle type recognition technology; a reliable data basis is provided for subsequent analysis; s2, traffic state perception and prediction: calculating key traffic parameters of traffic flow, speed and density based on the preprocessed data; and a scientific prediction model is called. According to the method, the future short-time passenger and freight predicted flow provided by traffic state perception and prediction is received, and the lane allocation decision is made based on the dynamic data, so that the number of the passenger car special lanes can be increased in time when the flow of the passenger cars is sharply increased in the morning peak, the delay of the passenger cars on the passenger and freight mixed lanes is reduced, and the overall traffic efficiency is effectively improved.