1502 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 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 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 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 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.

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 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 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.

A vehicle door for a motor vehicle includes a handle element which is arranged on the outer side of the door above a beltline of the vehicle door, wherein an operating element is integrated into the handle element, by which operating element a lock, by which the vehicle door, which can be arranged on a body of the motor vehicle so as to be movable between a closed position and at least one open position, is to be secured in the closed position, is able to be electrically unlocked. The handle element is held on a base body of the vehicle door so as to be movable relative to the base body from a rest position into at least one actuating position. The lock is able to be mechanically unlocked by moving the handle element from the rest position into the actuating position. The movement of the handle element into the actuating position makes accessible an actuating element via which, while bypassing the handle element, a force intended for opening the vehicle door can be applied to the vehicle door.

A passenger car multi-system integration system includes at least an air compressor and a liquid tank. The air compressor and the liquid tank have exterior walls that at least partially contact. During operation of the air compressor, heat as a byproduct is transferred from the air compressor to the liquid tank by conduction, and is then transferred to the contents of the liquid tank by convection. The passenger car multi-system may also include at least one electromagnetic clutch in communication with the motor and the air compressor or the motor and a water pump, such that power can be optionally directed to the air compressor or the water pump during operation of the motor.

A vehicle door for a motor vehicle includes a handle element on the outside of the door, wherein the handle element is held on a main body of the vehicle door so that it can move relative to the main body from a rest position into at least one actuating position, and wherein a lock, by which the vehicle door, which can be arranged on a structure of the motor vehicle so as to be movable between a closed position and at least one open position, can be secured in the closed position, can be unlocked by moving the handle element from the rest position into the actuating position. On the main body, a first guide device is provided. On the handle element, a second guide device is provided which interacts with the first guide device, as a result of which the handle element can be moved relative to the main body from the rest position into the actuating position, guided along a movement path which is predetermined by the interacting guide devices.

An arrangement of an electrical energy store on a body shell for a passenger car. The body shell has two side sills between which a main floor extends, where the entire main floor is formed by a housing cover of a housing of the electrical energy store. The housing has a lower part which is located, in the passenger car vertical direction, below the housing cover and has a receiving space for storage cells for storing electrical energy. The receiving space is formed by the housing cover and the lower part. The housing cover has cooling ducts through which coolant is flowable where at least a portion of the electrical energy store is coolable by the coolant. Spaces are located between the storage cells and at least parts of a floor of the lower part.

The invention relates to the technical field of new energy vehicles, in particular to a new energy passenger vehicle driving range calculation method which comprises the steps that battery management system data, navigation and road condition information, driver behavior data, environment data and vehicle electric accessory data of a vehicle are collected; a vehicle movement energy consumption model and an accessory energy consumption model are established, the vehicle movement energy consumption model comprises wind resistance energy consumption, rolling resistance energy consumption and acceleration energy consumption, and the total energy consumption of the vehicle is calculated; estimating the state of charge of the battery by adopting a Kalman filtering algorithm in combination with the capacity attenuation model, and adopting corresponding correction methods according to different intervals of the SOC; and calculating the driving range of the new energy passenger vehicle according to the total energy consumption and the SOC estimation result, training the LSTM neural network according to the historical data of the driver behavior, and outputting a personalized endurance estimation value. According to the technical scheme, the actual driving range of the new energy passenger vehicle can be estimated more accurately.

Such a protective device with a flexible partition grid, which can be stretched at least largely vertically in the vehicle interior by means of tensioning members which are provided with suspension hooks in an upper edge region of the partition grid, wherein roof-side brackets which are fastened in a ready-to-use state on the vehicle side in a roof area of ​​the vehicle interior are matched to the suspension hooks in order to enable a positive suspension of the suspension hooks in the roof-side brackets, is known. According to the invention, the suspension hooks have a T-shaped suspension head, wherein a T-web of the suspension head is provided with two web ends that are opposite one another and project orthogonally to opposite directions from a hook plane of the T-shaped suspension head. Use for passenger cars.

The utility model relates to the technical field of passenger car steps, and discloses a manual four-step structure for a passenger car, which comprises a frame component, a framework component is movably sleeved in the frame component, and an upper connecting rod component and a pedal component are mounted at the front end of the framework component. And meanwhile, the lower connecting rod assembly sleeves the inner sides of the upper connecting rod assembly and the pedal assembly. According to the manual four-step structure for the passenger car, when the pedal stretches out, the positioning groove falls within the limit of the positioning block, the stretching-out angle of the pedal is fixed, the stretching-out position of the pedal is locked, the base anchor makes contact with the ground, the strength of the pedal is guaranteed, and the safety of people getting on and off the passenger car is guaranteed; the overall thickness is small, space is saved, the upper connecting rod and the lower connecting rod are locked through nylon blocks, and it is guaranteed that no abnormal sound is generated during recycling.

The invention discloses a passenger car front passenger door lower cross beam welding positioning tool which comprises a lower cross beam welding table, and a supporting frame and a sliding base capable of moving along a sliding groove are arranged on the lower cross beam welding table. The plasma welding assembly comprises a plasma welding controller, a plasma arc welding connector, an electric telescopic rod and a mechanical hand, wherein the plasma welding controller is installed on the sliding base, and the electric telescopic rod drives the welding connector to move. The profiling positioning device consists of a profiling reference block and a transmission double-screw rod; the embedded water cooling device comprises a spiral water cooling channel embedded in the profiling reference block; through the synergistic effect of the snakelike groove of the profiling reference block and the transmission double screws, the profile of the special-shaped curved surface of the lower cross beam of the passenger car is accurately matched, and the problem that a workpiece is suspended or stressed unevenly is solved; the dynamic pressure adjusting mechanism detects and adjusts the contact pressure of the pressing ball in real time, it is guaranteed that clamping force is evenly distributed, the defects of misalignment, undercut and the like of weld joints are avoided, and the welding qualification rate is increased.

The invention belongs to the field of metal materials, and particularly relates to 1285MPa-grade passenger car steel and a production method thereof, the steel comprises the following chemical components: C, Si, Mn, Al, Nb, V, Ta, Bi, Sb, W, Cr, Pt, Zr and Y, the Al / Si is 1.0-2.0, the Ta + Pt is 0.020-0.030%, 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 by adopting the processes of hot rolling, EPS, continuous annealing and finishing, the production process is simplified, and environmental pollution is avoided.

The utility model discloses a composite structure passenger car front air suspension which comprises two air bag supporting bases installed on an axle, air springs are installed on the tops of the air bag supporting bases, a shock absorber is installed on one side of each air bag supporting base, and a leaf rod spring is installed on the side, away from the shock absorber, of each air bag supporting base. Front supports are arranged at the ends of the sides, close to each other, of the two piece rod springs, the same upper longitudinal thrust rod is installed between the front supports and the corresponding air bag brackets, and the same transverse thrust rod is installed between the two air bag brackets. According to the sheet rod spring structure, the functions of a lower longitudinal thrust rod and a stabilizer bar are combined, the integration is higher, meanwhile, a stabilizer bar suspender and a suspender installation cross beam are omitted, the integration of suspension components is achieved, installation points are reduced, and the available space of the whole vehicle is increased.