双蓄能器并联式液压混合动力车制动特性研究  

Double Accumulator for Parallel Hydraulic Hybrid Vehicle Braking Characteristics

作　　者：张丹丹[1] 张学炜[2] 张伟 

机构地区：[1]内蒙古民族大学机械工程学院,内蒙古通辽028000 [2]内蒙古工业大学机械学院,内蒙古呼和浩特010051 [3]秦皇岛港股份有限公司,河北秦皇岛066002

出　　处：《液压与气动》2015年第2期74-78,共5页Chinese Hydraulics & Pneumatics

摘　　要：针对目前并联式液压混合动力车存在制动特性和能量回收率不能兼顾的缺陷,通过分析蓄能器参数在液压辅助系统中的影响作用,提出了用2个小容积蓄能器代替1个大容积蓄能器,并采用蓄能器逐个充液的方案。分析了并联式液压混合动力车能量回收与辅助驱动系统的工作原理和关键元件的参数配置;建立了双蓄能器能量回收与辅助驱动AMESim仿真模型,并进行了车辆液压低速制动和高速制动的仿真分析。结果表明:采用双蓄能器逐个充液的制动方式,低速制动能够显著缩短制动时间和制动距离,高速制动能够有效提高能量回收率。For the parallel hydraulic hybrid vehicle cannot take into account the braking characteristics and energy recovery. By analyzing the influences of accumulator parameter in the hydraulic auxiliary system,we put forward a new scheme that applying two small volume accumulators instead of a large volume accumulator. Firstly,we analyze the principle of energy recovery and auxiliary driving system of parallel hydraulic hybrid vehicle and the parameters configuration of key components. Secondly,we build AMESim model of energy recovery and auxiliary driving system. Thirdly,we conduct the simulation analysis for the low speed braking and high speed braking was. The results show that the new braking way through charging from one accumulator to another can shorten the braking time and distance significantly in low speed braking condition and improve the energy recovery rate effectively in high speed braking condition.

关 键 词：双蓄能器 液压混合动力 制动特性 能量回收 AMESIM 

分 类 号：TH137[机械工程—机械制造及自动化]