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251.自动控制汽车制动淋水降温系统研究
[汽车制造业] [2014-03-20]
With the analysis of vehicle braking drum overheated which has caused brake invalid,this paper put forward a kind of research way to improve the problem of braking drum overheated.Through auto-control it spurts water to lower the temperature to the overheated hub to solve the problem of brake invalid which is caused by braking hub overheated,improve the constancy of braking efficiency,guarantee the security of vehicle drive.
关键词：汽车；鼓式制动器；制动效率；淋水降温；自动控制
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252.基于卡尔曼滤波算法的目标车辆运动状态雷达估计方法
[汽车制造业] [2014-03-20]
In this paper,based on Kalman filtering algorithm,a method of target vehicle motion state radar estimation with radar(or lidar) is presented.The state equations is established based on rigid plane dynamics theory,and then with a Kalman filter to do radar data processing,the position,velocity and acceleration of the target vehicle can be estimated at the same time,so that to cover the shortage that acceleration information can not be gained with radar system.Through simulation and field tests it is verified that the detection accuracy of position and velocity of target vehicle is increasing,and the acceleration of target vehicle can be estimated effectively and accurately.
关键词：汽车；雷达；卡尔曼过滤；加速度估计；智能汽车
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253.汽车铝合金车身面板的反弹补偿研究
[汽车制造业] [2014-03-20]
We put forward a new springback compensation method based on displacement compensation principle and the principle of curved surface fairing design methods.Though full cycle simulation and calculate springback value for each working procedure,then generate the springback compensation surface.The method's practical application effect is good.
关键词：汽车；金属板材成型；反弹补偿；铝合金；车身面板
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254.纯电动汽车的一种嵌入式智能仪表的设计与实现
[汽车制造业] [2014-03-20]
an automobile intelligent instrument is designed to meet new requirements of the pure electric vehicles by combining the embedded development board with the embedded configuration software MCGS.In this instrument,the hardware development platform is developed to communicate with the main controller of vehicles by extending CAN bus interfaces on the embedded development board,the main control chip of which is S3C2440.Moreover,the embedded configuration software MCGS is adopted to achieve the software design of the instrument system.
关键词：汽车；电动汽车；智能仪表；MCGS；控制器局域网总线
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255.基于二次型有界性理论的自适应巡航控制系统设计
[汽车制造业] [2014-03-19]
A new decision algorithm for ACC systems is proposed.Feasible driving set is defined based on state and control constraints,which represent driver behavior features.And based on the analysis of collected driving data,a second-order range policy is selected to approach real driver behavior.Under dynamic output feedback control framework,the decision algorithm has been developed based on quadratic boundedness theory and given in terms of linear matrix inequalities.Performance of the proposed algorithm is verified by Simulink and Carsim co-simulation.
关键词：汽车；自适应巡航控制；二次型有界性理论；线性矩阵不等式
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256.用户汽车选择模型研究报告
[汽车制造业] [2014-03-19]
As the model documentation states, While OMEGA incorporates functions which generally minimize the cost of meeting a specified carbon dioxide (CO2) target, it is not an economic simulation model which adjusts vehicle sales in response to the cost of the technology added to each vehicle. Because the OMEGA model does not presently estimate such impacts, the EPA is investigating the feasibility of developing an adjunct to the OMEGA model to make such estimates. This project is an effort to develop and test a candidate model. The project statement of work spells out the key functional requirements for the new model.
关键词：汽车；车型选择模型；经济模型；消费者事务；燃料经济性；减排；温室效应
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257.基于免疫PID控制的汽车防抱死制动系统控制算法研究
[汽车制造业] [2014-03-19]
A immune PID control algorithm based on classic PID is presented and used in automobile ABS system.Compared with the classic PID control algorithm and fuzzy control algorithm,the simulation result shows that the immune PID control algorithm has a shorter stabilization time,a smaller excess of system output,fewer response time and shorter braking distance,it is superior to the classic PID control algorithm and fuzzy control algorithm.The immune PID control algorithm has a higher application value.
关键词：汽车；防抱死制动系统；PID控制；免疫控制；滑动比率
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258.以煤制油为燃料的柴油车道路颗粒排放物
[汽车制造业] [2014-03-19]
Particle emissions of a diesel car fueled with coal to liquids (CTL) on road were tested.The particle number and size distribution were mainly studied.Three typical roads were adopted in this test, including urban arterial roads, secondary roads and freeways.The results show that transient particle number of the car has a corresponding relationship with the vehicle speed.With the speed increasing, the number of both nucleation mode particles and accumulation mode particles increase continuously.
关键词：汽车；柴油机；煤制油；颗粒物排放
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259.汽车在火灾中生存性能改进研究
[汽车制造业] [2014-03-19]
The authors of this review have analyzed the auto industry reports, the scientific literature, and statistical data, and conclude that measures should be taken to improve survivability in automobile fires. The authors suggest that FMVSS 302 is no longer relevant to automobile fire safety and recommend improved standards based on objective criteria for fire safety performance (fireworthiness) at the system/vehicle level as is routinely done for crashworthiness.
关键词：汽车；汽车火灾；防火性能；FMVSS 302
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260.氢燃料电池汽车燃油系统完整性研究：电气绝缘测试程序的开发和验证
[电力、热力、燃气及水生产和供应业] [2014-03-19]
The purpose of the project report is to document the manner in which Battelle applied its subject matter expertise, experience, and facilities to complete Task Order 4, Electrical Isolation Test Procedure Development and Verification under the NHTSA Hydrogen Vehicle Fuel System Safety Program. The report describes the discrete steps and results that led to the development and verification of the test procedure and all supporting research.
关键词：环境与资源；燃料电池；电动车；产品开发
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