共查询到20条相似文献,搜索用时 250 毫秒
1.
2.
通过分析机器人控制柜细化布局设计的时机、布置时的管线约束、空间要求、便利性要求,提升焊装线布局设计质量,有效避免控制柜现场布置时电缆长度不够、控制柜占用物流通道、调试时不方便等问题,减少对影响项目周期和成本的不良影响。 相似文献
3.
4.
利用交流充电桩,为电动汽车充电提出了一种全新的方案。该充电方案是将交流充电桩的多个控制单元集中放置在一个控制柜内,做到控制部分的集中化管理,而每个充电枪头则作为控制柜的一个分支,这样就可以从该控制柜内引出多个分支,每个分支只需要引出一个充电枪头,连接线缆再配上一个充电枪头挂板支架,即可满足给电动汽车充电的功能,省去了单个交流充电桩的构建。同时,提供了该系统的硬件设计框架、各充电桩之间的通信电路以及软件的控制流程。 相似文献
6.
7.
介绍了一种自主研发的自动变速器试验台的组成和功能,较详细地介绍了其控制柜的设计,论述了试验台数据采集系统和软件的设计。 相似文献
8.
该文从“三化”(通用化、系列化、模块化)设计思想出发,重点论述了柴油发电机组控制柜模块化设计方法,并介绍了各个控制功能的相应控制模块。 相似文献
9.
10.
机床PLC控制系统需要控制的器件纷繁复杂,众多线缆的接线工作很繁重,控制柜、分线盒和线槽等需要的布线空间也很大,各种线缆纵横交错,差乱无序,维修起来的难度可想而知,分布式I/O系统的使用解决了这个难题。 相似文献
11.
仪表板系统是汽车内饰系统中最关键的系统,因为仪表板是驾驶员和用户最直观、最近距离接触的零部件,其造型风格、外观质量以及功能配置等因素直接影响着驾乘人员对车辆的品质感受。集舒适性、美观性、功能性、装饰性、安全性于一身的特质也决定了仪表板在设计开发中涉及到的工艺更广泛、更复杂。为了使仪表板能够在驾驶舱内呈现良好的效果,汽车工程师们从成型工艺、加工工艺、表面装饰工艺3个维度进行了深度的挖掘,开发出多种适合不同级别、不同配置、不同功能定义的车型的工艺,使得开发人员在设计开发过程可以根据不同需求进行合理选择。 相似文献
12.
13.
为解决混凝土泵送换向时负载突变和活塞撞缸引起主油泵出口液压冲击的问题,提出了混凝土泵送换向过程的变排量控制方法。在周期性突变负载工况下,基于混凝土泵的开环特性,综合考虑泵送油缸结构参数和主油泵排量控制时间参数,在满足活塞不撞缸的物理约束下以泵送时间最短为评价标准,建立混凝土泵送换向过程的优化模型。以某型号的混凝土泵为例,对泵送油缸变排量控制信号点的位置参数和主油泵变排量控制的4个时间段参数进行了优化,并分别以水和混凝土为泵送对象进行了仿真和试验分析。研究结果表明:采用变排量控制方法后,主油泵出口液压冲击大约减小了67%,且没有发生活塞撞缸现象;该方法为解决周期性突变负载下混凝土泵送开环控制系统的设计问题提供了一个新的工程化途径。 相似文献
14.
15.
《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(10):1233-1253
Previously, a new control concept called ‘G-vectoring control (GVC)’ to improve vehicle agility and stability was developed. GVC is an automatic longitudinal acceleration control method that responds to vehicle lateral jerk caused by the driver's steering manoeuvres. In this paper, a new yaw-moment control method, which generates a stabilising moment during the GVC command and has positive acceleration value and the driver's accelerator pedal input is zero, was proposed. A new hybrid control, which comprises GVC, electric stability control and this new control, was constructed, and it was installed in a test vehicle and tested on a snowy surface. The very high potential for improvement in both agility and stability was confirmed. 相似文献
16.
本文旨在研究汽车声学包的轻量化设计,要求在保证声学性能的前提下,尽可能实现轻量化的目标。首先运用统计能量法建立了包含车身结构和各声腔的整车模型,提取80 km/h匀速工况下发动机舱的声辐射激励、动力总成激励和车身表面脉动压力激励,并将其施加在该模型上,获得驾驶员头部声腔声压,结果与试验数据吻合良好,验证了模型的有效性。接着根据各子系统对驾驶员头部声腔声压的贡献量分析结果,对内前围和前地板声学包提出了改进方案。最后以改进方案中各层材料厚度为设计变量,以驾驶员头部声腔总声压级和声学包总质量为目标构建Kriging近似模型,采用多目标遗传算法对声学包材料厚度进行优化,优化后的声学包声学性能与原来相当,而总质量减轻了20.76%。 相似文献
17.
K. H. Noh C. K. Rah Y. S. Yoon K. S. Yi 《International Journal of Automotive Technology》2014,15(4):655-666
A new approach to develop human driver models (HDMs) is proposed in accordance with the drivers’ generic human factors, i.e., gender, age, and experience, to develop more realistic vehicle simulations. The HDMs consist of three independent and stepwise models with functioning driver’s information processing stages based on the human factors: constructing drivers’ preview distance (PVD) models as a ‘cognition process’, implementing a finite preview optimal control algorithm as a ‘decision process’, and differentiating an ‘operation process’ according to neuromuscular efficiency. Eight different groups of 65 drivers with a 2 × 2 × 2 within-subject design participated in both the PVD estimates and neuromuscular efficiency tests to develop a set of statistically different HDMs. Regarding the preview distance models, an analysis of covariance (ANCOVA) procedure was adopted with two covariates (i.e., vehicle velocity and road curvature), while analyses of variance (ANOVAs) were performed on the neuromuscular efficiency parameters. The ANCOVA procedure produced eight significantly different cognition processes, whereas the ANOVAs revealed gender differences for the drivers’ neuromuscular systems. Moreover, an integrated vehicle simulation was configured with the HDMs using Carsim and Simulink software to observe the differential effects of both the cognition and operation processes on a double-lane-change (DLC) maneuver. During the simulations, gender differences in real-world DLC tests were also identified, especially between the male-oldexpert and the female-young-novice HDMs. The results presented in this study suggest that differentiating HDMs according to human factors is an essential process when utilizing vehicle simulations in the early stage of developing an intelligent vehicle system. 相似文献
18.
19.