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High reliability of motor controller is very important, in order to work safety, besides the reliable software and hardware system, it is necessary to control the motor controller with some convenient devices.
For the operator operating the equipment effectively and conveniently, provide effective safety guarantee for the controller, programmable handheld programmer can be operated simply through buttons on the programmer by operators, so as to control the operation of motors and the operation of electric vehicles.
At the same time, China's energy consumption, along with the changes in the international situation, the oil bulls, if in accordance with the current vehicle growth rate of development,Caused by the shortage of energy will restrict the economic development of our country.Therefore, from the perspective of environmental protection and energy conservation, hair electric motor show clean will be a breakthrough in China's automobile industry.
So the electric car in twenty-first Century will become the most potential traffic tool[1-2].
Journal of Shanghai Jiaotong University, 2007, 41(9): 419-426.

Warehousedemand rate is, Unit storage costs for ; Order fee is ;Cargo at= 1 Yuan / kg, Safety stock is.
[3] Yuan Qingda :Stochastic inventory- transportation integrated optimization problem research D.Xinan Traffic University School of management, 2001
J.Journal of systems engineering, 2004.1 [7] Ganeshan R.Managing Supply Chain Inventories: A Multiple Retailers, One Warehouse, Multiple Supplier Model.
J.International Journal of Production Eeonomics, 1999, 59: 341-354 [8] Alfredsson P, Verrijdt J:Modelling emergency supply flexibility in a two-echelon, Inventory system.
Journal of Xiamen University, 2006, 45: 317-322.

Early warning information will assist in the evacuation and safety of lives and properties.
Furthermore, there was no significant impact of the oil spill/fire incident on the drainage, landscape, soil erosion, road/ traffic, sedimentation, community stability and cultural values.
At none of the station was any localized combustion observed other than the small contribution from automotive traffic, which is low in density.
Lemmen: Geodata, Disaster and Beyond, GIM International, Vol. 19, Issue No 3 (2005) [2] J.
Journal of Advanced Materials Research, published by Trans Tech Publication, Zurich, Switzerland, June 2007, vols. 18 &19, pp 365 - 372 (2007) [9] O.

Sabina, International Journal of Engineering Science, 54 (2012) 42-57
Almgren, Journal of Elasticity, 15 (1985) 427-430
Evans, International Journal of Solids and Structures, 47 (2010) 1469-1476
Cormier, International Journal of Solids and Structures, 69–70 (2015) 475-490
Park, Journal of Materials Science, 23 (1988) 4406-4414

This development has been motivated by the increase in air traffic globally, including long distance intercontinental flights, which have put a strain on the travel industry.
HyperSizer® uses methods that accurately calculate margins of safety for all possible failure modes, over 100 for both limit and yield failure modes [24].
As the optimization progresses the ranges are halved until the weight change between iterations is below 2% and all the margins of safety are positive.
P., “Aeroelastic and Aerothermoleastic Analysis of Hypersonic Vehicles: Current States and Future Trends,” AIAA Journal, 2007
M., “Similarity Laws for Aerothermoelastic Testing,” Journal of the Aerospace Sciences, Vol. 29, 1962, pp. 935-950

Research on Coordination Control Strategy of Hydraulic Retarder and Friction Brake of Coach Kuiyang Wang1, a, Jinhua Tang1, b, Guoqing Li1,c 1School of Automotive and Traffic Engineering, Jiangsu University of Technology, Changzhou 213001, China awangkuiyang@jstu.edu.cn, btjh@jstu.edu.cn, cgqli@jstu.edu.cn Keywords: Hydraulic Retarder, Friction Brake, Braking Force Distribution, Coordination Control.
According to the above-mentioned coordination control strategy between hydraulic retarder and friction brake, the braking torque of hydraulic retarder can be made full use of and the degree of wear and heat load of friction brake can be greatly reduced in the premise of ensuring braking safety and comfort.
It can extend service life of friction brake and improve braking safety performance of coach.
Cooperative Control of Full Electric Braking System with Independently Driven Four Wheels[C]. 9th IEEE International Workshop on Advanced Motion Control, 2008
Journal of System Simulation, 2009, 21(16): 5169-5178.

The early research method for passive safety is crash test, which is intuitive and accurate for comprehensive evaluation of vehicle safety performance [1].
Bumper anti-collision beam is a crucial safety component, which has a great influence on vehicle safety [4].
(in Chinese) [4] Zhongming Xu, Xiaofei Xu and Xinming Wan: submitted to Journal of Mechanical Engineering (2013).
(in Chinese) [5] A.Hambali, A.R.Rabiatul and A.S.Rahim: submitted to International Journal of Engineering and Science (2012)
[7] Haijiang Liu, Xia Zhang and Lifang Xiao: submitted to Journal of Machine Design (2011).

This will allow increasing strain energy per unit volume of structural components of vehicles during traffic collision [1-3, 15-23].
Neumann, Supra-ductile and high-strength manganese TRIP/TWIP steels for high energy absorption purposes, ISIJ International 43 (2003) 438-446
Meyer, High strength Fe-Mn-(Al, Si) TRIP/TWIP steels development - properties - application, International Journal of Plasticity 16 (2000) 1391-1409
Tański, Characteristics of hard coatings on AZ61 magnesium alloys, Journal of Mechanical Engineering 59/3 (2013) 165-174
Labisz, Analysis of the state of the fine-dispersive precipitations in the structure of high strength steel Weldox 1300 by means of electron diffraction, Journal of Iron and Steel Research International 18/1 (2011) 135-142

It has a high safety and practicality.
Because of interacting simplicity, the data traffic quantity is not much.
It has a high safety and practicality.
[2] Gustaw Mazurek,Active RFID System With Spread-Spectrum Transmission,IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, VOL. 6, NO. 1, JANUARY 2009 [3] Carlo Mutti,CDMA-based RFID Systems in Dense Scenarios: Concepts and Challenges,2008 IEEE International Conference on RFID The Venetian, Las Vegas, Nevada, USA,April 16-17, 2008 [4] ZhiguoDing,Research and Realization on Key Technologies of RFID,A dissertation for doctor’ s degree,University of Science and Technology of China,2009,P113～122 [5] Wang Ping,Hu Ai-qun,Pei Wen-jiang,The Design of Anti-collision of UHF RFID System Based on CDMA,Journal of Electronics & Information Technology,Vol.29 No.11 2007 [6] Cai Qingling, Zhan Yiju, Shi Binning,A Mutual Authentication Protocol of Randomized Key Based on EPC C1G2 RFID, TELECOMMUNICATIONS SCIENCE ,2007 23(4) [7] Liang Biao,Hu Ai-qun,Qin Zhong-yuan,A Novel Design for RFID Anti-collision Technique,Journal of Electronics & Information Technology,Vol.29 No.9 2007 [8] Carlo Mutti
,CDMA-based RFID Systems in Dense Scenarios: Concepts and Challenges,2008 IEEE International Conference on RFID The Venetian, Las Vegas, Nevada, USA April 16-17, 2008

Noise Analysis of Diamond Saw Blade Min Zhao 1, a, Lin Zhang1,b , Beiming Tang2 and Kattan Maher 1 1 College of Traffic & Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China 2 School of Chemical Industry, Xi`an Jiaotong University, Xi’an 110168, China azhaomin58@163.com, bsweetzhanglin@163.com Keywords: Diamond Circular Saw Blade, Factors Affecting the Noise, Noise Analysis Abstract.
A potential threat could be brought to safety and the operating efficiency will reduce.
In this formula, Lp represents sound pressure level (dB), p represents the sound pressure of one point(Pa), P0 represents reference sound pressure, according to the international regulations, Po = Pa.
References [1] Stevenson D C Gray W W etc Quietening Circular Saws by Reducing Blade Vibration [J].Noise Control Engineering Journal，1989，33（1）：33