1397 results about "Car passenger" patented technology

The invention belongs to urban railway system vocation education equipment which can realize multi-type failure simulation of a metro passenger car door system and bidirectional communication linkage based on analog simulation software. The analog simulation software can set a failure to an experiment table and also can collect the state of the experiment table to realize structural dismounting, a work principle and an overhauling flow in a three-dimensional manner. The method and the device disclosed by the invention can be used for realizing practical training, checking and scientific researches of the metro passenger car door system. The whole device comprises six parts including a passenger car door assembly experiment table, an integrated array type control and collecting module, an embedded type handheld failure simulation terminal, a handheld failure setting device, a connecting wire, a data conversion connector, a main control computer, and analog simulation and control software. The type of simulated failures comprises an EDCU (Electronic Door Control Unit) failure, short circuit, open circuit, earth connection, deadlock, an intermittent failure, device damages, signal interference and the like. The method and the device can be used for researching a car door clamping force, a bypath door control line and the like.

The invention discloses a white car body static stiffness restriction device of a passenger car and a static stiffness detection method. The device is characterized in that: one side of a front bearing support is provided with a pressure transducer and a hydraulic jack, a plurality of displacement sensors are arranged at the periphery of the white car body bottom surface; the front bearing support comprises a front rack, a T-shaped rack, and a I-shaped guide rail, wherein, the end portion of the front rack is connected with the very center of a crossbeam of the T-shaped rack through bolts and nuts, the crossbeam of the T-shaped rack is arranged at the left and right side of the white car body, and the lower side of the crossbeam is provided with the hydraulic jack; the bottom of the T-shaped rack is connected with the bottom of the front rack through a pin roll and a split pin; the upper surface of the crossbeam of the T-shaped rack is symmetrically provided with I-shaped guide rails; a torque value of the applied load is divided by a twisting angle to calculate a twisting stiffness, and the actual value of the load is divided by a car body deformation displacement to obtain a bending stiffness. According to the invention, the efficiency of various vehicle tests is increased, and the device cost is obviously reduced on the premise that the test accuracy is guaranteed.

The invention discloses a plug door for a passenger car, relates to a door for a passenger car, and in particular relates to the plug door for the passenger car, which comprises a fixed frame (1), a movable frame (2), a plug switching mechanism (3), a tumbler linkage mechanism (4), a drive mechanism (5) and a door sheet (6). The plug movement of the door sheet (6) of the passenger car is completed through the plug switching mechanism (3), the tumbler linkage mechanism (4) and the drive mechanism (5). The plug door can be arranged on the passenger car, is sealed, is stable and reliable in movement, and can move in a reciprocating way.

The invention belongs to the technical field of composite materials, and discloses a passenger car floor of a sandwich structure. The passenger car floor of the sandwich structure is provided with a surface layer (2), a core layer (1) and a surface layer (2) which are arranged from top to bottom; the surface layer (2) is a glass fiber fabric reinforced resin-based composite material layer with the thickness of 0.5-2.5mm and the density of 1800-2200kg/m<3>; the core layer (1) is formed by combining a reinforcement formed by a fiber, or a fiber fabric, or a compound of the fiber and the fiber fabric, and a base body which is hard polyester foam obtained by foaming polyethylene resin; the core layer (1) has the thickness of 7-20mm, and the density of 200-500kg/m<3>. The passenger car floor has sufficient mechanical performance, installation reliability and excellent medium resistance, the pressing resistance and light weight of the passenger car floor are guaranteed, and meanwhile the effects of temperature preservation, sound insulation and noise reduction are achieved.

The invention provides an elevator car passenger detection system. A camera for collecting videos in a car in real time is arranged in the elevator car. The detection system comprises an image processing unit, a background updating unit and a judgment unit, wherein the image processing unit is used for obtaining brightness information of each pixel point in each image frame in the videos shot by the camera; the background updating unit is used for obtaining and updating a background image by comparing brightness differences of corresponding pixel points in two adjacent image frames; the judgment unit is used for determining that no person is in the elevator car when the brightness difference of a current image frame and a pixel point of the background image is smaller than a first threshold value, and determining that a person is in the elevator car when the brightness difference of the current image frame and the pixel point of the background image is not smaller than the first threshold value. The invention further provides a corresponding method. The image frames of the on-site videos collected by the original camera in the elevator car are compared with the background image, and accordingly whether the person is in the car can be judged, extra detection devices do not need to be increased, and whether the person is in the car can be accurately judged.

The invention discloses a production method of a warp knitting raising interior decorative material of an automobile, comprising the steps of selecting raw material, performing warping, weaving, dyeing and pre-shaping; napping, performing shaping and bonding; bonding a napped fabric and an automobile interior decorative plate by glue. The fabric has size stability, elasticity, softness and wearing resistance; the raising fabric has light weight and then satisfies light requirement of the whole vehicle; the raising surface of the raising warp knitting fabric replaces a non-woven cloth or a sponge in the automobile interior composite fabric, thus, the compounding process of the warp knitting fabric or the non-woven cloth or sponge is saved, the whole process flow for processing the automobile interior decorative material is simplified, the energy consumption is reduced, the harmful gas volatilization during the process is reduced, the molded fabric bonded with the automobile interior decorative plate does not wrinkle, the problems that the automobile interior decorative composite fabric is easy to wrinkle during the bonding and the fabric and the sponge or the non-woven cloth are easy to separate during the usage for a long period are solved; the warp knitting raising interior decorative material is suitable for ceilings, skylight interior decorative plates and upper cover plates of a trunk of a passenger car.

The invention discloses a skylight sun shield for a passenger car and a production technique thereof, and belongs to the technical field of design and production for decoration products inside the passenger car. The skylight sun shield consists of a basal plate and a decorative cladding compounded on the external surface of the basal plate, the basal plate uses 3 to 30 millimeters of honeycomb paper as a framework, and a layer of polyurethane reinforced by 200 to 800 g/m<2> of glass fiber felt is pressed on the upper surface and the lower surface of the framework; and the production technique comprises three steps in turn, namely forming of the basal plate, compounding of the cladding, and manufacturing of a finished product. The skylight sun shield has the characteristics of light weight, elegant appearance, stable performance, safety and environmental protection, and the like, and is suitable for medium and high-grade passenger cars.

The invention relates to a front independent suspension mechanism of a vehicle, in particular to a front axle independent suspension mechanism mainly used on a commercial vehicle such as lorry and passenger car. In the mechanism, one, two or mainly leaf springs are used in place of an elastic element of the conventional independent suspension such as spiral spring independent suspension or torsion bar independent suspension, plate-end sliding blocks are used to connect a common independent suspension and leaf springs together perfectly, structures such as I-beam are not used, parts such as leaf springs are hidden in a cross beam of a secondary vehicle frame, and the advantages of the common independent suspension and the advantages of the leaf spring suspension are fully combined. In the mechanism, the loading capacity is high with many elastic elements are used, and the difference between equivalent averages of idle-load comfort and load comfort is small; and compared with the conventional axle load commercial vehicle, the commercial vehicle using the mechanism is more comfortable, takes up a smaller space and is lower in cost.

The invention discloses a hot-rolled high-strength sheet steel having a tensile strength of 510MPa, and a production method thereof. The steel comprises 0.05-0.09wt% of C, 0.10-0.30wt% of Si, 0.70-1.50wt% of Mn, 0.025wt% or less of P, 0.012wt% or less of S, 0.015-0.040wt% of Ti, 0.01-0.03wt% of Als, and the balance Fe and inevitable impurities. The production method of the sheet steel comprises the following steps: desulfurizing molten iron, carrying out converter smelting, and alloying; carrying out ladle furnace treatment, and feeding Si-Ca wires during the treatment; carrying out continuous casting and rolling; tapping off the above obtained casted blank, and carrying out high pressure water dephosphorization; carrying out seven-stage rolling; carrying out laminar cooling; reeling; pickling; flattening; and finishing. The steel has stable performances, a high dimension precision and a good elongation rate, can be used in automobile structure and safety members comprising passenger car chassis, various reinforcing plates and the like, and reduces the automobile production cost, and the production method of the steel has a low production cost and good industrial production adaptability.

The invention discloses a multi-axle distributed driving pure electric vehicle seriation platform. The platform is a distributed multi-purpose pure electric vehicle seriation common platform composed of at least two double-motor driving axles and can be used for pure electric trucks, passenger cars and self-propelled trailers. The distributed driving chassis platform is composed of multiple double-motor driving axles. Transmission ratios of axles on the driving axles can be different, transmission switching control is conducted through a whole vehicle controller and a motor controller, optimizing control is conducted according to the requirements on resistance of various road surfaces and the driving speed, and the work efficiency of motors can be fully exerted. Multiple sets of motors, battery packs and controllers are dispersed and parallelly used, the safety of a power supply can be improved, and the system cost can be reduced.

The invention discloses a failure control method for an electric drive system of a four-wheel distributed drive passenger car. The failure control method comprises the following steps: selecting a vehicle to enter a two-wheel drive mode or a parking mode according to a failure mode of the electric drive system; performing motor torque distribution on a non-failure motor when entering the two-wheel drive mode; calculating ideal yaw velocity under different conditions according to the reference ideal insufficient steering degree US; calculating an ideal side slip angle by combining an integralestimation method and a side slip angle upper limit empirical formula; using a fuzzy control algorithm, using errors of the yaw velocity and the side slip angle as input variables to calculate additional yaw moment; carrying out offline calculation to obtain output torque MAP graphs of the vehicle under different accelerators and vehicle speeds, and according to the operation intention of a driver, carrying out interpolation on the accelerator pedal opening degree and the current vehicle speed to obtain expected longitudinal driving torque; and based on a double-track two-degree-of-freedom nonlinear vehicle model, performing motor torque distribution on the non-failure motor in combination with the additional yawing torque and the expected longitudinal driving torque.

This invention puts forward a communication protocol suitable for pure electromotive passenger trains based on CAN2.0B and J 1939 related specifications, among which, it assigns new address, selects the assigned addresses in original SAEJ 1939 definition for the motor controller, electronic joint air gate controller, cabin display, ABS controller and power battery management system. The information contained in the parameter set and data field of entire car controller, motor controller, speed variator and battery management system of pure electromotive cars is re-defined in detail.

The invention discloses a V2X-based formation driving intelligent networked passenger car, which comprises a sensing and positioning device, a V2X information interconnection system and a chassis domain controller which are connected with an automatic driving domain controller, wherein the automatic driving domain controller decides a formation driving state according to collected multi-source information and outputs a target speed and acceleration of path tracking, the sensing and positioning device comprises an environment sensing unit and a positioning and navigation unit, the V2X information interconnection system broadcasts passenger car state information to other formation vehicles, and the chassis domain controller is used for path tracking control of the networked passenger car, drives an electronic accelerator to perform acceleration control through a CAN bus, performs deceleration control through motor braking and service braking, and sends an advancing command request of going straight, turning left or turning right to the steering motor controller through the CAN bus. According to the invention, formation driving cooperative control of multiple passenger cars can be achieved, dual-redundancy design is adopted in chassis domain controller hardware, and the stability, safety and reliability of formation driving are improved.

The invention provides a composite sound insulation high-resilience automobile main carpet anti-vibration pad which comprises two horizontally laid sound absorbing layers and two vertically laid high-elasticity layers, wherein the sound absorbing layers and the high-elasticity layers are compounded into a whole in a staggered way; each sound absorbing layer has the square gram weight of 400-600g/ m<2>, and each high-elasticity layer has the square gram weight of 1100-1300g/ m<2>. The invention also provides a preparation method of the product. According to the automobile main carpet anti-vibration pad, the two horizontally laid sound absorbing layers and the two vertically laid high-elasticity layers are adopted, and the sound absorbing layers and the high-elasticity layers are compounded into a whole in a staggered way, so that the product is good in sound absorbing property and elastic recovery; furthermore, recycle cotton and a polyurethane (PU) foaming technology are not used, so that volatile organic compounds (VOC) are not produced, and the product is in accordance with the in-car air quality requirement of a passenger car in China and is non-toxic.

The invention relates to a passenger car braking pipeline system for a cold region. The passenger car braking pipeline system for the cold region comprises an air compressor, a dehumidification air cylinder, a condenser, a drying device and a four-circuit valve, wherein the air compressor, the dehumidification air cylinder, the condenser, the drying device and the four-circuit valve are connected in sequence through pipelines. The type of the four-circuit valve is WABCO9347140100, and an outlet of the drying device is connected with an opening 1 of the four-circuit valve. An opening 21, an opening 22, an opening 23 and an opening 24 of the four-circuit valve are connected with a rear braking air cylinder in a rear braking pipeline system, a front braking air cylinder in a front braking pipeline system, a hand braking air cylinder in a hand braking pipeline system, and an auxiliary air cylinder in an auxiliary air system respectively; the air compressor is a double-cylinder water-cooling type air compressor, and an electric heater is arranged on the drying device.

A remote monitoring system for bus energy consumption comprises a bus energy consumption data collecting device, a GPRS (general packet radio service) module, and a data processing and displaying device for collecting and processing busload and vehicle speed of a passenger car, consumed fuel quantity, temperature and humidity data in real time; the GPRS module transmits the related data to the data processing and displaying device of a monitoring center through a network; a client computer of the monitoring center analyzes and processes the collected data through bus energy consumption remote monitoring software, displays each bus energy consumption data in a form of a chart, can also provide the functions of inquiring historical data and automatically generating a daily statement, a monthly statement and an annual statement, and provides the bus energy consumption over-proof alarm information by comparing the monitored energy consumption data with the fuel consumption limit standard. According to the system, full-automatic analysis, treatment and estimation of the bus energy consumption data are achieved, and the data quality for counting and monitoring the bus energy consumption can be improved.

The invention discloses a redundant braking system supporting complete automatic driving of a commercial vehicle, and belongs to the technical field of commercial vehicle automatic driving. The systemcomprises a main control module, a redundancy control module, a trailer control valve, an air cylinder I, an air reservoir II, an air cylinder III, a first power supply, a second power supply, a first CAN network, a second CAN network, a front axle left brake air chamber, a front axle right brake air chamber, a rear axle left driving air chamber, a rear axle right driving air chamber, a rear axleleft spring parking air chamber and a rear axle right spring parking air chamber, and each wheel of the front axle and the rear axle is respectively provided with two wheel speed sensors; and the main control module and the redundancy control module communicate through an internal CAN network. Safety redundancy is achieved in all aspects of vehicle perception, control and execution, the braking safety requirement of the full-automatic driving technology is met, and the redundant braking system can be widely applied to tractors, cargo trucks and passenger car types such as 4X2 and 6X4 in commercial vehicles.