Road friction coefficient real-time estimation methods is an important issue and problem in automotive active safety con- trol system development. First a fixed feedback gain sliding mode observer of road adhesion coe...Road friction coefficient real-time estimation methods is an important issue and problem in automotive active safety con- trol system development. First a fixed feedback gain sliding mode observer of road adhesion coefficient is designed through the es-tablishment of tire/road dynamic friction model in this article. The simulation results shows that the observer can well real-time iden-tify the current road adhesion characteristics. And more importantly, the observer only need wheel speed signal and the braking torque （brake pressure） signal, so the system is low cost, and its adaptability is good. There is no doubt this estimation method has a good application prospect.展开更多
The paper proposes a methodological scheme that thoroughly accounts for natural-climatic conditions which can impair the stability and longevity of transport facilities （roadways）, to ensure the best possible qualit...The paper proposes a methodological scheme that thoroughly accounts for natural-climatic conditions which can impair the stability and longevity of transport facilities （roadways）, to ensure the best possible quality of the initial road design. Factors determining the formation of water-heating mode subgrade soils are allocated, and an information database for mathematical modeling of geocomplexes is shown. Values of strength and deformability of clay soils are calculated within the limits of the defined, homogeneous road districts in Western Siberia to provide the required level of reliability of design solutions.展开更多
President Xi Jinping put forward that, "China will further push the open economy to a higher level by enlarging its scale, expanding its area, and deepening its degree." This proposal provides new perspectiv...President Xi Jinping put forward that, "China will further push the open economy to a higher level by enlarging its scale, expanding its area, and deepening its degree." This proposal provides new perspectives for RMB internationalization. The new path of RMB internationalization shall be achieved under the Belt and Road Initiative and be a new option that is di erent from the "Three-Stage Theory" and regional monetary cooperation. RMB internationalization can only be realized through a government-driven mode with Chinese characteristics which shows the fundamental di erence from the internationalization of other currencies such as the US Dollar, Euro and Japanese Yen. The Chinese government can realize the strategic objective of RMB internationalization through improving national governance, applying policies and tools for macroeconomic regulation, and implementing the Belt and Road Initiative, as well as the operation of its nancial industry, the Silk Road Fund(SRF), and that of regional banks like the Asian Infrastructure Investment Bank(AIIB) and the BRICS New Development Bank(NDB). RMB internationalization is an important objective of China's political and economic development. Efforts must be made to steadily promote market-oriented reform of the RMB exchange rate and its forming mechanism, and reform of capital account convertibility so that RMB can become the leading global reserve currency. Meanwhile, China will also undertake more responsibilities as a major power for stable development of the international economy and nance.展开更多
基金Partially Supported by Henan Polytechnic University Doctoral Fund(No.B2010-12)+2 种基金Natural Science Fund of Henan Province Education Department(No.2011B580001)Henan Province Key Technology Research Project(No.122102210045)
文摘Road friction coefficient real-time estimation methods is an important issue and problem in automotive active safety con- trol system development. First a fixed feedback gain sliding mode observer of road adhesion coefficient is designed through the es-tablishment of tire/road dynamic friction model in this article. The simulation results shows that the observer can well real-time iden-tify the current road adhesion characteristics. And more importantly, the observer only need wheel speed signal and the braking torque （brake pressure） signal, so the system is low cost, and its adaptability is good. There is no doubt this estimation method has a good application prospect.
基金supported by a grant from Russian Foundation for Basic Research (Project No. 14-07-00673 A)
文摘The paper proposes a methodological scheme that thoroughly accounts for natural-climatic conditions which can impair the stability and longevity of transport facilities （roadways）, to ensure the best possible quality of the initial road design. Factors determining the formation of water-heating mode subgrade soils are allocated, and an information database for mathematical modeling of geocomplexes is shown. Values of strength and deformability of clay soils are calculated within the limits of the defined, homogeneous road districts in Western Siberia to provide the required level of reliability of design solutions.
文摘President Xi Jinping put forward that, "China will further push the open economy to a higher level by enlarging its scale, expanding its area, and deepening its degree." This proposal provides new perspectives for RMB internationalization. The new path of RMB internationalization shall be achieved under the Belt and Road Initiative and be a new option that is di erent from the "Three-Stage Theory" and regional monetary cooperation. RMB internationalization can only be realized through a government-driven mode with Chinese characteristics which shows the fundamental di erence from the internationalization of other currencies such as the US Dollar, Euro and Japanese Yen. The Chinese government can realize the strategic objective of RMB internationalization through improving national governance, applying policies and tools for macroeconomic regulation, and implementing the Belt and Road Initiative, as well as the operation of its nancial industry, the Silk Road Fund(SRF), and that of regional banks like the Asian Infrastructure Investment Bank(AIIB) and the BRICS New Development Bank(NDB). RMB internationalization is an important objective of China's political and economic development. Efforts must be made to steadily promote market-oriented reform of the RMB exchange rate and its forming mechanism, and reform of capital account convertibility so that RMB can become the leading global reserve currency. Meanwhile, China will also undertake more responsibilities as a major power for stable development of the international economy and nance.
