The Research On Based On Technical Secondary Regulation Of Hydraulic Hybrid Vehicle Auxiliary Power Unit

Following the economic development, cars bring the advantage for persons'production and life. But in the same time, it also brings the short of energy sources and environment pollution, it restrict development of cars in some degrees, it is a important assignment that how to solve this problem. It is imperative under the situation to develop saving energy and protection of circumstance. The cars drove by hydraulic pressure. It is a new kind of cars that saving energy and protection of circumstance. It increased the hydraulic pressure auxiliary power unit in the traditional automobile's transmission system, on the one hand the auxiliary boost actuates the automobile, is balanced the engine the peak power, on the other hand can the automobile brake energy storage, and can use in automobile's starting and the acceleration, applies the brake while the automobile, provides the brake moment of resistance by the auxiliary power unit, reduced the automobile brake's use intensity and the frequency, lengthened the automobile brake's service life, saved the maintenance, the maintenance costs. Obviously, the hydraulic pressure mix power automobile may alleviate the energy to be scarce to a great extent, environmental pollution question, as soon as therefore it passed through is published immediately has caused various countries' government, the development facility and the automobile manufacturer takes seriously.In this paper, the first part of the analysis of energy and environmental issues on the basis of this research that the meaning and purpose. In this paper, based on technical secondary regulation of hydraulic hybrid vehicle auxiliary power units for the main content, its a comprehensive and in-depth theoretical analysis and simulation of basic research. Based on the analysis of the city's buses special operating conditions on the basis of the existing variety of storage options for a comprehensive comparison, identified using hydraulic energy storage technology package. In the design of the hydraulic system used in bladder hydraulic accumulator for energy storage devices, axial piston pump / motor as energy conversion device, in order to achieve system compact, fast rapid response requirements.The second part of regulation hybrid vehicle auxiliary power unit analysis. Second-conditioning technology is a pressure group or a coupling device work even in the implementation of the network and can be constant pressure to achieve energy recovery and regeneration of hydrostatic dynamic technology, the hydraulic hybrid vehicle is the core technology. The technology driven through the electro-hydraulic servo valve piston variable fuel tank about movement, and to readjust the secondary component of the ramp-inclination to adapt to the changes in load the purpose of proceeding to speed through reference to the relevant information, the paper introduced a theory of The hydrostatic transmission regulation principle, the second-conditioning systems control law briefly describing the basic control law - speed control in the secondary component of the four quadrants of the work on the basis on a hydraulic auxiliary power unit on the vehicle fuel economic impact.The third part of the establishment of a hydraulic drive unit assisted the mathematical model, and its driver braking process simulation analysis of the hydraulic accumulator and the secondary component is divided into two working of the state and their respective a mathematical model, a hydraulic accumulator for the auxiliary drive components as the mathematical model, that is, storage - motor mathematical model for the second accumulator as storage devices (load) of the mathematical model, that the accumulator - Pump model. Conducting simulation analysis, the work is equally divided into two states, namely, the second components to the status of the pump (braking) work simulation curve and the second to motor components (drive) the status of work simulation curve, and the simulation by the curve compared to arrive at a final conclusion.The fourth part of the auxiliary hydraulic drive unit control methods carried out in-depth research and analysis, and focus on conventional PID control and single neuron adaptive PID control of the control performance of the simulation analysis and control performance compared to certification Analysis of the theoretical results. Simulation results show that the single neuron adaptive PID control systems can significantly speed up the reaction speed, enhancing the robustness of the system, improve the stability of the system.In this paper, based on technical secondary regulation of hydraulic hybrid vehicle auxiliary power units for the main content, its a comprehensive and in-depth analysis of the theory and basic research experiments. In the analysis of urban bus special operating conditions on the basis of this paper, the various existing storage options for a comprehensive comparison, identified using hydraulic energy storage technology package. In the design of the hydraulic system used in bladder hydraulic accumulator for energy storage devices, axial piston pump / motor as energy conversion device, in order to achieve system compact, fast rapid response requirements.Second-conditioning technology is a pressure group or a coupling device work even in the implementation of the network and can be constant pressure to achieve energy recovery and regeneration of hydrostatic dynamic technology, the hydraulic hybrid vehicle is the core technology. The technology driven through the electro-hydraulic servo valve piston variable fuel tank about movement, and to readjust the secondary component of the ramp-inclination to adapt to the changes in load the purpose of proceeding to speed through reference to the relevant information, the paper introduced a theory of The hydrostatic transmission regulation principle, the second-conditioning systems control law briefly describing the basic control law - speed control in the secondary component of the four quadrants of the work on the basis on a hydraulic auxiliary power unit on the vehicle fuel economic impact.This paper established a hydraulic auxiliary drive unit of the mathematical model, and its driver braking process simulation analysis of the hydraulic accumulator and the secondary component is divided into two working state analysis and the establishment of their mathematical model, The first hydraulic accumulator for the auxiliary drive components as the mathematical model, that is, storage - motor mathematical model for the second accumulator as storage devices (load) of the mathematical model, that is, accumulator--Pump model. Conducting simulation analysis, the work is equally divided into two states, namely, the second components to the status of the pump (braking) work simulation curve and the second to motor components (drive) the status of work simulation curve. And the simulation by the curve compared to arrive at a final conclusion.Hydraulic auxiliary drive unit on the control method carried out in-depth research and analysis, and focus on conventional PID control and single neuron adaptive PID control of the control performance of the simulation analysis and control performance compared to verify the theoretical analysis. Simulation results show that the single neuron adaptive PID control systems can significantly speed up the reaction speed, enhancing the robustness of the system, improve the stability of the system.The simulation results show that the technology will be applied to secondary regulation of the transmission system in the traditional automotive component hybrid drive system, using hydraulic auxiliary drive unit on the vehicle brake energy recovery and use them, so that the engine can be efficient in the work The status of the interval, the hydraulic hybrid vehicle fuel economy will be greatly improved, auto emissions of harmful substances also greatly reduced, on environmental protection and energy-saving vehicles is of great practical significance. At the same time this paper for the research and development of hydraulic hybrid vehicle has some practical value. With developing of social economic, vehicles bring advantage of persons'life. It bring short in energy and the aggravation of environment pollution, it is imperative under the situation to develop the vehicles which consume less fuel and bring less pollution to the environment. Hybrid hydraulic vehicle, a new pattern of environment vehicles, was brought under this situation.