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Zhong J.,Beijing Institute of Technology | Tao G.,Beijing Institute of Technology | Liu J.,Guangzhou Automobile Group Co.
Proceedings - 2016 International Conference on Cybernetics, Robotics and Control, CRC 2016 | Year: 2016

In order to test and evaluate the automatic transmission (AT) electronic control system and improve the development efficiency with lower cost, a hardware-in-loop simulation (HILS) platform of AT electronic control system is built. To simulate the electro-hydraulic proportional control loop and test the control signals output from the TCU, a real-time test system for electro-hydraulic proportional control in HILS is synchronously designed. First, the AT electro-hydraulic proportional control loop is anatomized and modeled. Second, to accelerate the calculation of models in microcontrollers, the floating point arithmetic is turned into integer type fixed-point arithmetic. Third, the hardware and the software with dual-core framework of the real-time test system are designed. Fourth, the HILS platform of AT electronic control system, including the real-time test system for electro-hydraulic proportional control, is built. Finally, steady state tests, transient tests and buffer control tests are conducted. The results verify the function of real-time test system for electro-hydraulic proportional control. The real-time test system basically meets the design demands and lays a foundation for HILS platform. © 2016 IEEE.

Ai G.,Lawrence Berkeley National Laboratory | Ai G.,China Institute of Technology | Dai Y.,Lawrence Berkeley National Laboratory | Mao W.,Lawrence Berkeley National Laboratory | And 8 more authors.
Nano Letters | Year: 2016

The lithium-sulfur (Li-S) rechargeable battery has the benefit of high gravimetric energy density and low cost. Significant research currently focuses on increasing the sulfur loading and sulfur/inactive-materials ratio, to improve life and capacity. Inspired by nature's ant-nest structure, this research results in a novel Li-S electrode that is designed to meet both goals. With only three simple manufacturing-friendly steps, which include slurry ball-milling, doctor-blade-based laminate casting, and the use of the sacrificial method with water to dissolve away table salt, the ant-nest design has been successfully recreated in an Li-S electrode. The efficient capabilities of the ant-nest structure are adopted to facilitate fast ion transportation, sustain polysulfide dissolution, and assist efficient precipitation. High cycling stability in the Li-S batteries, for practical applications, has been achieved with up to 3 mg·cm-2 sulfur loading. Li-S electrodes with up to a 85% sulfur ratio have also been achieved for the efficient design of this novel ant-nest structure. © 2016 American Chemical Society.

Yang M.,Guangzhou Automobile Group Co.
Lecture Notes in Electrical Engineering | Year: 2013

The crash box plays a key role in the car's low speed crash performance, and also important for high speed crash. Currently, the styling design goes ahead of structure design in a car's development, leading to the poor performance of the crash box which is designed under the constraint of styling. In this paper, a new method is put forward for coupling the design of styling and crash box's crash performance in the styling design phase of an B-class car. In this method, basing on the crash load case, the crash box's section force target is deduce by its energy absorption ratio. Then the design parameter is deduced. With this method, the compatibility between the styling and crash performance is evaluated during the early phase of the car's development. A compatible design of styling and crash performance can be acquired by the optimization of styling and under this method. Finally, the B-class car's crash result is shown in this paper for the verification of the effectiveness and engineeringfeasibility of this method. © Springer-Verlag 2013.

Yang J.,Guangzhou Automobile Group Co.
Zhongguo Jixie Gongcheng/China Mechanical Engineering | Year: 2016

The motion vector relation of a car was built under the action of crosswind in general case, a multi-body dynamics model of the car was established by using ADAMS Car. Based on the external flow field analyses of body, the discrete aerodynamic six-component coefficients were translated into continuous aerodynamic forces by using the vector relation, the crosswind load was exerted in real time according to yaw angle of body; the transient crosswind stability simulation was executed according to ESV regulations. The influence rules of simplified aerodynamic load on crosswind stability were discussed, the quantitative simulation results are agree with the flow field qualitative analyses, which proves the correctness and reliability of the method. © 2016, China Mechanical Engineering Magazine Office. All right reserved.

He C.,Sun Yat Sen University | Chang S.,Sun Yat Sen University | Chang S.,Guangzhou Automobile Group Co. | Huang X.,Guangzhou Automobile Group Co. | And 3 more authors.
Nanoscale | Year: 2015

The Magnéli phase Ti8O15 nanowires (NWs) have been grown directly on a Ti substrate by a facile one-step evaporation-deposition synthesis method under a hydrogen atmosphere. The Ti8O15 NWs exhibit an outstanding electrical conductivity at room temperature. The electrical conductivity of a single Ti8O15 nanowire is 20.6 S cm-1 at 300 K. Theoretical calculations manifest that the existence of a large number of oxygen vacancies changes the band structure, resulting in the reduction of the electronic resistance. The Magnéli phase Ti8O15 nanowires have been used as conductive carbon-free supports to load Pt nanoparticles for direct methanol oxidation reaction (MOR). The Pt/Ti8O15 NWs show an enhanced activity and extremely high durability compared with commercial Pt/C catalysts. © 2015 The Royal Society of Chemistry.

Cheng J.,Sun Yat Sen University | Li Y.,Sun Yat Sen University | Huang X.,Guangzhou Automobile Group Co. | Wang Q.,Guangzhou Automobile Group Co. | And 2 more authors.
Journal of Materials Chemistry A | Year: 2015

The nitrogen-self-doped three-dimensional graphene-like networks (N-3D GNs) with suitable surface areas and hierarchical porous structures have been synthesized by an improved ion-exchange/activation method. The Pt nanoparticles supported on N-3D GNs give more than double mass activity and almost no degradation in surface area after 5000 cycles compared with a commercial Pt/C catalyst. The results demonstrate that the improvement in the support can reach 2.6 times the catalytic activity. This strategy is a direct way to reduce the catalyst cost and make the practical application of the catalyst a reality. This journal is © The Royal Society of Chemistry 2015.

Guangzhou Automobile Group Co. | Date: 2012-06-26

Bicycle assembling machines; engines for manufacturing batteries; glass working machines; handling apparatuses for loading and unloading, namely, palletizers and case elevators; spark plugs for internal combustion engines; hand-held tools, other than hand-operated, namely, hammers, drills, reamers; radiators for cooling motors and engines; automobile motor exhausting and decontaminating devices, namely, catalyzing reaction devices; exhaust for motors and engines, namely, exhaust manifolds, mufflers; mufflers for motors and engines; pistons and parts of machines and engines; hydraulic pressure pumps, valves as parts of machines; fly-wheels for machines; vehicle washing installations; automobile maintenance equipment, other than hand tools and implements, namely, oil pans. Locomotives; automobiles; motorcycles; cycles, namely, non-motorized two-wheeled cycles with hand brakes that are pushed, not pedaled; cycle pumps, namely, bicycle pumps; aerial conveyors, namely, unmanned aerial vehicles; railway hand cars; omnibuses; tires for vehicle wheels; repair outfits for inner tubes comprising patches for inner tubes; airplanes; boats; vehicle bumpers. Building construction supervision; upholstery repair; machine installation, maintenance and repair; installation, maintenance and repair of computer hardware; installation and repair of lighting apparatuses; rust proofing; spraying and painting with oil-paint services; retreading of tires; vulcanization and repair of tires; burglar alarm installation and repair.


Guangzhou Automobile Group Co. | Date: 2011-06-29

Shock absorber for machines; bearings as a part of machines; fuel pumps for land vehicles; pistons being a part of the internal combustion engine, cylinder, or the engine; starters for motor and engines; ignitor for engines and the land vehicles; self-propelled road sweeping machines; automobile maintenance equipment, other than hand tools and implements, namely, spanners, jacks, electric hammers; carburetters; automobile motor cooling radiator. Vehicles for locomotion by land, air, water or rail, namely, cycle cars, automobiles, boats, airplanes, trains; door panels for vehicles; automobile bumpers; windows for vehicles; brake segments for motor cars; transmission shafts for land vehicles; horns for vehicles; non-skid devices for vehicle tires, namely, chains, stubs, textile covers; vehicle seats; anti-theft devices for vehicle; covers for vehicle steering wheels; bicycle pumps; aerial conveyors; wheelchairs; handcarts for transporting baggage; baby carriages; stagecoach; repair outfits for inner tubes of motor cars, bicycles or other land vehicles, namely, tire repair gun; airplanes; boats; automobiles; automobile chassis; gear boxes for land vehicles; clutches for land vehicles; bodies for vehicles; propulsion mechanisms for land vehicles, namely, screw propellers for vehicles; motors for land vehicles; vehicle wheels; hoods for vehicle engines; steering wheels for vehicle; upholstery for vehicles; caps for vehicle petrol (gas) tanks; tires for vehicle wheels; bicycles; motorcycles. Motor vehicle maintenance and repair; retreading of tires (tyres); vehicle service stations involving refuelling and maintenance services for vehicles; airplane maintenance and repair; spray and painting with oil-paint services in the field of vehicles; rust proofing for vehicles; gas stations; burglar alarm installation and repair; rebuilding machines that have been worn or partially destroyed; vehicle cleaning.


Guangzhou Automobile Group Co. | Date: 2012-04-17

Bicycle assembling machines; engines, other than for land vehicles, for manufacturing batteries; glass working machines for polishing glass; loading and unloading machines; spark plugs for internal combustion engines; cooling radiators for motors and engines; automobile motor exhausting and decontaminating device, namely, catalytic converters; engine exhaust systems comprised of pipes, collector and muffler for motors and engines; mufflers for motors and engines; pistons for motors and engines; hydraulic pressure pumps; valves as machine components; flywheels for machines; vehicle washing installations; hand-operated automobile maintenance equipment, other than hand tools and implements, namely, power-operated buffers. Automobiles; propulsion mechanisms, namely, engines for land vehicles; anti-theft devices for vehicles; cycle cars; bicycles; bicycle pumps; aerial conveyors in the nature of chair lifts; hand cars in the nature of dollies; omnibuses; tires for vehicle wheels; repair patches for inner tubes; air vehicles, namely, airplanes; automobile chassis; automobile bodies; gear boxes for land vehicles. Building construction supervision; upholstery repair; installation, maintenance and repair of computer hardware; motor vehicle maintenance and repair; vehicle service stations for refueling and maintenance; retreading of tires; burglar alarm installation and repair.

Zhao K.,South China University of Technology | Liu Y.,South China University of Technology | Huang X.,Guangzhou Automobile Group Company | Yang R.,Guangzhou Automobile Group Company | Wei J.,Guangzhou Automobile Group Company
IEEE/ASME Transactions on Mechatronics | Year: 2014

A novel transmission concept, the uninterrupted shift transmission (UST), is introduced in this paper, which retains most of the components common or similar to normal automated transmissions such as automated manual transmission or dual clutch transmission, but offers an uninterrupted torque from engine to wheels during the shifting process with the so-called multimode controllable shifters. An UST dynamic model is established to analyze UST's shift characteristics. The special control logic involving the engine, clutch and transmission are put forward to improve UST's shift quality, and are applied in the simulation model using MATLAB/Simulink tools. To validate the simulation model and the control logic, a proto test bench has been designed and built with corresponding data acquisition system and controlling equipment. Finally UST's torque uninterrupted functionality during shift, effectiveness of the proposed control logic and validity of the proposed dynamic model have all been verified experimentally. © 1996-2012 IEEE.

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