FAW Group Corporation is a Chinese state-owned automotive manufacturing company headquartered in Changchun, Jilin, China. Its principal products are automobiles; buses; light, medium, and heavy-duty trucks; and auto parts. FAW became China's first automobile manufacturer when it unveiled the nation's first domestically produced passenger car, the Hong Qi, in 1958.FAW is one of the "Big Four" Chinese automakers, alongside Chang'an Motors, Dongfeng Motor, and SAIC Motor. In 2014, the company ranked third in terms of output making 2.7 million whole vehicles.FAW has three publicly traded subsidiaries: FAW Car Company , Tianjin FAW Xiali Automobile Co Ltd , and Changchun FAWAY Automobile Components Co Ltd . Wikipedia.
Huang H.,Changchun University |
Wang K.,China First Automobile Works Group Corporation
Signal, Image and Video Processing | Year: 2017
The image with rich textures can be decomposed into the sum of a geometric part and a textural part. Inspired by this fact, we propose an efficient texture-preserving image deconvolution algorithm based on image decomposition. Our algorithm restores the geometric part and textural part, respectively, by incorporating (Formula presented.) gradient minimization and a wave atoms-based Wiener shrinkage filter. The (Formula presented.)-based gradient minimization method could globally locate important edges, main structures. The wave atoms transform offers a better representation of images containing oscillatory patterns and textures than other known transforms. Our method contains three steps for restoring texture images. First, we propose an image deconvolution method based on (Formula presented.) gradient minimization to restore geometric part of the image with minimal loss of image detail components. Next, we use a Wiener shrinkage filter in the wave atom domain to attenuate the leaked colored noise and extract fine details. Finally, we obtain the estimated image by adding the two image parts together. We compare our deconvolution algorithm with other competitive deconvolution techniques in terms of ISNR, SSIM, and visual quality. © 2017 Springer-Verlag London
Liu W.,Jilin University |
Ya H.,China First Automobile Works Group Corporation
SAE International Journal of Commercial Vehicles | Year: 2012
Vehicle needs suspension and steering systems with different features to fit different driving conditions. In normal straight driving condition, soft suspension and heavy steering systems are needed to achieve better ride comfort and straight line driving stability; in turning conditions, hard suspension and lightweight steering systems are needed to get better handing stability. The semi-active suspension system with Magneto-Rheological dampers can improve the ride comfort and handling performance of vehicle. Electrical power steering system is developed rapidly due to its portable and flexible operations as well as stable steering performance. In this paper, the features of electrical power steering and semi-active suspension systems have been done a more in-depth study, and an integrated control strategy was proposed to achieve the coordinated control of these two electric control systems arises in order to improve the ride comfort and ensure the steering stability in cornering situation. In a well on the basis of experimental data, the mathematical model of electrical power steering and semi-active suspension systems were adopted to predict the characteristics of these two electric systems. The numerical simulation results show that the integrated control strategy is effective and successful in improving the overall performances such as rapid electrical power steering and good body post regulation. The primary goal of this paper is to create an effective, reliable and safe integrated control strategy for steering and suspension systems that improves the ride comfort as well as handing stability. © 2012 SAE International.
Shi X.,Beijing Institute of Technology |
Li W.-X.,China First Automobile Works Group Corporation
Binggong Xuebao/Acta Armamentarii | Year: 2011
A two-stage sequential turbocharging system was proposed in order to meet the power output requirements for diesel engine within the altitude range from zero to 5 500 meters. Based on the required power recovery of CA6DL2 engine, the specific parameters of the turbocharging system were calculated and the low-pressure turbocharger was chosen. The software GT-Power was used to calculate the engine's performance at different altitudes. The simulation results show that, due to a good match with the two-stage sequential turbocharging system, the engine power can be recovered to 80 percent at 5 500 meters while keeping no change at sea level.
Yan G.,China First Automobile Works Group Corporation
Lecture Notes in Electrical Engineering | Year: 2013
The steering torque variation which is an important evaluation index of the vehicle handling stability directly influences the feeling of driving. The objective of this chapter is to optimize the hard points and the phase angle of steering column assembly in order to reduce the torque variation to the minimum, and improve the vehicle handling stability. In this chapter, the formulas for accurate calculation of the angular velocity ratio and the torque variation in double cross universal joints system are deduced according to the transmission analysis of single cross universal joint. Based on the study of the formula for approximate calculation of the rotational angle deviation in double cross universal joints system and the calculation of the torque variation using MATLAB software, an effective optimization method of the phase angle which could be applied to reduce the angular velocity ratio and the torque variation is obtained. The torque variation could be calculated exactly and reduced to the minimum by using the optimization method and formulas in the early stage of steering column assembly layout. The formulas and optimization method could also be applied to other cross universal joints transmission system. © 2013 Springer-Verlag.
Huang C.,China First Automobile Works Group Corporation
Zhongguo Jixie Gongcheng/China Mechanical Engineering | Year: 2015
To predict vertical step passability of wheeled vehicle and get driveline torque, this paper presented a unified obstacle crossing model. The model could simulate climbing process of any given axle of a vehicle with any axles. Factors such as adhesion coefficient difference between climbing wheel and rolling wheel, suspension bound and rebound limits, wheel liftoff were considered. Passability criteria of simulation results was discussed. The model was validated through tests. Influence of suspension bound limits on driveline torque was analyzed. ©, 2015, China Mechanical Engineering Magazine Office. All right reserved.
Sui Q.,China First Automobile Works Group Corporation
Lecture Notes in Electrical Engineering | Year: 2013
With the development of the car industry and the rising of consumer's requirements for comfort, brake noise gradually becomes one of the important factors to appraise the comfort of vehicle. This paper, aiming at solving the noise problem of the passenger car, researches the mechanism of brake noise's generation and the ways to optimize it in order to reduce the noise. The brake noise is tested according to the road test standard. The frequency and intensity of the noise are recorded in the vehicle test. At the same time, the relation of speed and the noise's frequency is recorded. The brake noise is divided into Squeal noise and Groan noise based on the test results of the car. Squeal noise: It is important to collect more information in the dynamometer which used suspension assembly to analyze the character of noise. The noise mechanism is analyzed and the optimum direction is found through the computer CAE technique. Groan noise: Based on the calculation and analysis of the test results, the main influencing factors of the noise are found and the optimum scheme is designed. Finally the performance of brake noise is validated in the dynamometer and the vehicle test. Computer analysis and test results show that Squeal noise is caused by the resonance of the brake system. In this paper, brake noise is reduced by reducing the stiffness of the brake disc by an average of 5%, optimizing the inherent character of the brake system and improving the stability of the brake system. Based on the test and the analysis, the main cause of the Groan noise is that the structure of brake pad and brake disc's ventilation is designed with defects. Groan noise is related to the structure of brake pad and brake disc's ventilation. It is effective to reduce noise by optimizing brake pad's structure. © Springer-Verlag 2013.
Wang X.,China First Automobile Works Group Corporation
Lecture Notes in Electrical Engineering | Year: 2013
The chapter discussed the method of power distribution of passenger vehicle, and indicated the key points of power distribution. Via analyzing the property of electronic and electrical parts in vehicle, we ascertain the load characteristics of electronic and electrical parts, define the load types of different electronic and electrical parts, define the application strategy of fuses and the original power distribution draft. According to the numbers and power of load, calculate the capability of fuse and choose the type of fuse. Then, via the capability of fuse, calculate the diameter of wire connecting with the fuse. Finally, summarize all the information to design the particular power distribution drawing. The process method and key points of power distribution discussed in the chapter are based on an economical car of FAW R&D Center, and the design result is validated by the economical car. The chapter mainly discussed common fuse and wire diameter selection, did not contain some special fuse such as main fuse selection principle or contain the layout and number of fuse. Nowadays, there're few articles about the power distribution study. However, this chapter discussed the power distribution systematically in order to assist the design of power distribution and guide the engineering design of power distribution of passenger vehicle. Power distribution is the key point of electrical system design. The chapter discussed the process, method and key points of power distribution. It is verified by an Economic car. This chapter discussed the power distribution in order to assist the design of power distribution and be helpful of the engineering design of power distribution about passenger vehicle. © 2013 Springer-Verlag.
Hou H.,China First Automobile Works Group Corporation
SAE International Journal of Passenger Cars - Mechanical Systems | Year: 2015
Wind noise, an aeroacoustic phenomenon, is an important attribute that influences customer sensation of interior quietness in a moving vehicle. As a vehicle travels faster, occupants' sensation of wind noise becomes increasingly objectionable. The purpose of this work is to investigate the increase of wind noise level perceived by a driver in response to an increase in wind speed. Specifically, it explores how much the level of wind noise at the DOE (driver outboard ear) would vary in response to a change in wind speed based on the test data obtained in a wind tunnel from ten vehicles that belong to several different passenger vehicle segments. The first part of this work studies the change of the SPL (sound pressure level) in response to a change in wind speed U. It shows that the SPL(dBA) approximately scales to U5.7 at the DOE and to U6.3 in the far-field, which could be interpreted as the dominance of dipoles. The second part of this work looks into the scaling of loudness measured in Zwicker sones that represent the human auditory sensation of wind noise level. It shows that the human perception of the wind noise loudness scales to U1.7 approximately, which indicates that the wind noise loudness sensation is doubled when the vehicle speed incurs a 50% increase. Copyright © 2015 SAE International.
China First Automobile Works Group Corporation | Date: 2014-07-07
Household utensils, namely, graters, sieves, spatulas, strainers, turners, pot and pan scrapers, rolling pins, whisks, and skimmers; kitchen utensils, namely, non-metal flexible lid designed for draining or pressing liquids from a food can and splatter screens and containers for household use not of precious metal or coated therewith; butchery blocks, namely, knife blocks; chopsticks; cleaning sponges; brushes for basting meat, cake brushes, clothes brushes, dishwashing brushes, dusting brushes, floor brushes, pot cleaning brushes, scrubbing brushes, scraping brushes, toilet brushes, tub brushes, washing brushes; filaments for making brushes and material for brush making; articles for cleaning purposes, namely, cleaning dusting and polishing cloths, cleaning rags, cleaning sponges, cleaning pads and steel wool for cleaning; steel wool; unworked or semi-worked colored sheet glass except glass used in building; beverage glassware; ovenware; bake ware; ceramics figurines; porcelain and earthenware mugs; cookware, namely, pots and pans; barware, namely, seltzer bottles; stainless steel, aluminum, five-ply, tri-ply, copper, hard anodized aluminum, cast-iron and cast aluminum cookware, namely, skillets; kitchen utensils, namely, food graters, namely, cooking graters, garlic presses and tortilla presses, rolling pins and pastry boards, chopping boards for kitchen use, buckets, roasting oven to table racks and cooling trays, namely, cooling racks; cooking utensils, namely, batter dispensers, grills, grill covers, and wire baskets; serving trays, candlesticks, trivets, cast-iron cook ware, namely, skillets, oven gloves, namely, rubber household gloves, fruit squeezers, namely, lemon squeezers, juicers and non-electric juicers; spice racks; flasks and lunchboxes. cups, plates, dishes, household food containers, bottles, namely, plastic water bottles sold empty, glass jars, serving bowls, mixing bowls, mugs, frying pans, roasting pans, cookware, namely, steamers, casseroles, egg poachers, stockpots, roasting dishes, saucepans and woks; ceramic grinding beads for use in wet milling, pepper mills for domestic purposes, drainers, namely, cooking strainers, salt and pepper mills and salt and pepper shakers; insulated lids for plates and dishes and pot lids; corkscrews; bottle openers; jar openers; sieves and colanders; food vegetable mashers; garlic presses; teapots, coffee pots, jugs, salad spinners, blanching cooking wire baskets, chip baskets, namely, plastic hand-held shopping baskets, steamer baskets, waste baskets and wastepaper baskets, wine bottle coolers, corn-on-the-cob holders and plates; cooking skewers, scoops, namely, dog food scoops, ice cream scoops and ice scoops, basting brushes, food whisks and non electric egg beaters; brushes for food namely, cake brushes, crumb brushes and basting brushes; eggcups and plates; household containers for food, cake moulds for food, icing sets, namely, decorating bags for confectioners, pastry bags, cake servers, ice cube trays, pots, egg separators; containers for household and kitchen use; toast racks namely, oven to table racks ; Flour and sugar sifters; household food displaying containers in the nature of cheese domes and cheese covers; butter dishes; egg poachers; woks non-electric; kettles non-electric; bread bins and breadboards; air-tight plastic containers for house hold use, namely, for food and drink storage; ironing boards and shaped ironing board covers, canister sets; waste bins; cleaning articles, namely, cleaning cloths. scouring pads, namely, sponges, mops and non electric carpet sweepers; feather dusters, pot cleaning brushes for household use; kitchen towel and toilet paper dispensers; window cleaning apparatus, namely, window cleaners in the nature of a combination squeegee and scrubber and window dusters; laundry baskets; dustpans and dusting brushes; brooms, funnels, water carriers, namely, household containers for holding water; cat litter pans, pet food bowls; containers for household or kitchen use; toilet brushes; rubber gloves for household purposes; laundry drying devices, namely, clothes drying hangers and clothes drying racks; bottle and jar openers hand-operated, food vegetable mashers hand implements; spatulas as kitchen utensils.
China First Automobile Works Group Corporation | Date: 2014-11-26
Corkscrews; Ice cube molds; Ice cube trays; Silicone baking cups.