丰田汔车维修技师培训敦程（十四）电气系统诊断与维修（XⅧ）

3．雨刷开关关掉的操作（如图133所示） 如果雨刷电机运行时,雨刷开关被关掉,电流流到雨刷电机的低速刷,雨刷以低速运行。当雨刷达到停止位置时,凸轮开关从触点P3一侧切换到P2一侧,电机停。     

建议汽车电子产品应附电路原理图

随着电子工业的发展,汽车装备的电子器件不断增加。如一汽生产的CA1092、CA1046、CA1110等中轻型货车,东风EQ1108载货汽车上装的电子电压调节器、电子闪光继电器、雨刷间歇控制器、预热控制器、电子车速里程表、电子点火模块、电子转速表、灯     

丰田汽车维修技师培训教程(十四)电气系统诊断与维修(ⅩⅧ)

3.雨刷开关关掉的操作(如图133所示) 如果雨刷电机运行时,雨刷开关被关掉,电流流到雨刷电机的低速刷,雨刷以低速运行.当雨刷达到停止位置时,凸轮开关从触点P3一侧切换到P2一侧,电机停.     

风雨无阻 如何自己更换雨刷

雨刷是汽车上的一个非常简单的配件,但它的作用不可忽视,特别是在雨雪较多的季节,一旦雨刷出现故障无法清理干净风挡玻璃上的雨雪,那将直接影响到行车的安全。一副新的雨刷在汽配店售价一般在五六十元,但如果在4S店或汽车美容店更换雨刷,费用至少翻一倍。然而,更换雨刷真的复杂到要花上与产品相当的价钱吗?只要看过一次工作人员更换雨刷,你就会明白这其实比上一枚螺丝复杂不了多少。     

雨中安全行车小配件简介

雨刷 常见的雨刷有单支型、双支型和强力型3种。其中，单支型和双支型雨刷较普遍，通常是依照车辆本身的规格制作的。而强力型雨刷是在雨刷臂上增加了一些叶片，能加强橡皮与玻璃的接触，将雨水彻底刮干净。     

别克凯越雨刮器故障

故障现象：一辆别克凯越轿车，车主报修打开点火开关后，雨刷开关在关闭的情况下，雨刷器依然工作。故障诊断与排除：接车后首先确认故障现象，查阅电路图后得知，此车的雨刷电机和模块是一体的。拔下雨刷电机插头后雨刷停止工作。分别测量雨刷电机插头的针脚（图3），测量结果为：     

汽车使用小常识

雨刷为何总刮不干净 汽车雨刷“有骨”也好“无骨”也好，刮不干净主要与雨刷片上和玻璃接触的胶条有关。很多刮不干净的情况都是胶条有了毛刺，有人用砂纸修瞿胶条上的毛刺，这种做法并不可取，弄不好反而惫伤了胶条，建议换新的雨刷。雨刷的寿命和使用很有关系，     

2015年上汽通用昂科威 后雨刷不喷水

车型:2015年上汽通用昂科威.行驶里程:78498km.故障现象:后举升门雨刷喷水不工作.故障诊断:询问客户故障发生的时间、地点、现象、频次.客户描述,下雨天打开后雨刷喷水发现,后雨刷喷水不能工作.打开后雨刷喷水开关测试,发现后举升门雨刷喷水不工作,但前雨刮和喷水功能正常,验证客户描述故障属实.     

智能除冰霜雨刷装置的结构设计及控制研究

文章介绍了一种智能除冰霜雨刷装置。该雨刷装置通过加热装置和雨刷片上独有的喷水换向装置,以及雨刷开关控制的智能控制线路系统设计,可在极短时间内有效清除前风挡玻璃上的霜花或冻冰,及污渍等。     

同是继电器故障，为何现象不同？

我站最近接收了三辆雨刷不能正常工作的故障车,这些车同为CA1110P1K2L7型解放平头柴油车,第一辆车的故障现象是:打开雨刷开关至"LOW"档位时,雨刷的保险片会立刻烧断;第二辆车的故障现象是:雨刷电机只有低速而无高速;第三辆车的故障现象是:雨刷电机不受雨刷开关控制,只要接通保险片电源"+"(即打开点火开关),电机便自行低速运转.经过仔细检查,发现都是雨刷继电器出现故障造成的.那么,既然都是继电器的缘故,为何会产生不同的故障现象呢?     

New energy recovery H∞ robust controller for electric bicycles

The electric controller is one of the most crucial components in an electric bicycle. The overall performance of the whole system heavily depends on the properties of the controller. The authors use the robust control theory to design a new H_∞ robust controller for the closed speed-current dual-loop driving and braking system. The designed controller also incorporates the driving and energy recovery braking circuit. Therefore, it has energy recovery ability, which coverts the kinetic energy wasted in braking into electric energy to recharge the battery. This prolongs the driving distance per battery charge. The simulations and experiments show that the new H_∞ robust controller out-performs the traditional PID controller in many respects including stability, error, responding speed and driving distance per battery charge.     

基于模糊逻辑的高速公路入口匝道控制方法

为提高高速公路入口匝道的控制能力,以达到增进车流平稳性的目的,对传统闭环控制器ALINEA进行了扩展,并结合模糊逻辑理论,给出一种新的入口匝道控制器。该模糊控制器加入了流量变化的因素,以交通流量为控制目标,实际流量与设定期望值的偏差及流量变化量作为输入,根据所设定的模糊规则给出匝道控制率的调节量。最后通过实例对控制器进行了评价。仿真试验表明:该模糊控制器能够快速地将交通流调整到期望状态,可以适应主干道交通流以及匝道需求的大幅变化,有效抑制波动的产生;同传统的ALINEA策略相比,模糊匝道控制器具有更加稳定的控制效果。     

新型电磁制动器的挂车防抱死控制及其仿真

对于使用一种新型电磁制动器的挂车,针对其特点应用模糊控制方法,以滑移率为控制目标,对使用车辆进行了防抱死控制,并使用Matlab中的Simulink工具箱对制动过程进行了仿真。仿真结果表明在使用这种新型电磁制动器的车辆防抱死过程中,模糊控制具有良好的控制效果。     

汽车辅助驾驶系统上位控制方法研究

在建立两辆汽车组成的动力学系统模型基础上，应用线性二次型最优理论及时间－能量最优理论研究了汽车辅助驾驶系统上位控制方法。针对现有方法存在的问题，将LQ法及时间－能量最优法相结合，提出了一种改进的上位系统控制方法。理论分析及仿真试验结果表明，新的控制方法在满足安全性和舒适性要求的同时，显著降低了系统的响应时间。     

PID plus fuzzy logic method for torque control in traction control system

A Traction Control System (TCS) is used to control the driving force of an engine to prevent excessive slip when a vehicle starts suddenly or accelerates. The torque control strategy determines the driving performance of the vehicle under various drive-slip conditions. This paper presents a new torque control method for various drive-slip conditions involving abrupt changes in the road friction. This method is based on a PID plus fuzzy logic controller for driving torque regulation, which consists of a PID controller and a fuzzy logic controller. The PID controller is the fundamental component that calculates the elementary torque for traction control. In addition, the fuzzy logic controller is the compensating component that compensates for the abrupt change in the road friction. The simulation results and the experimental vehicle tests have validated that the proposed controller is effective and robust. Compared with conventional PID controllers, the driving performance under the proposed controller is greatly improved.     

无钥匙进入系统转向柱锁控制器的原理与设计

随着一键式启动系统和无钥匙进入系统在国内的兴起,传统的机械式转向柱锁必将被新颖的转向控制器所代替。本文对无钥匙进入系统转向柱锁控制器(简称"转向控制器",SCLC)的原理作以介绍,重点分析如何将其与BCM控制器、IMMO和发动机管理模块(EMS)等有效集成,实现无钥匙进入系统的功能。     

基于DSP的串联式混合动力公交车的动力控制系统

介绍了一种采用DSP的串联式混合动力公交车的动力控制系统,并着重介绍其硬件部分的构成,通过利用 CAN总线简化控制线路及有效的抗干扰措施以提高稳定性,采用集散式的控制器模式对原PLC控制器模式进行升级后,可以实现对公交车的高精度动力控制。     

A New Control Approach for Platoon Operations during Vehicle Exit/Entry

A new platoon control concept is introduced, called Back Control, in which the controller of a given vehicle utilizes state information from the lead, preceding, and following vehicles, as well as the vehicle itself. Simulations are carried out on two non-steady state platoon operations - vehicle exit and vehicle entry from a platoon. A previously developed longitudinal controller is utilized as a reference to the proposed Back controller and a ride quality index is used to assess passenger comfort in these simulations. It is shown that the Back controller has advantages over the reference controller in these two operations and that it is therefore worth examining as a candidate controller of vehicular platoons, especially in non-nominal operations.     

A real-time multi-vehicle simulator for longitudinal controller design

This paper presents a new multi-vehicle simulator for platoon simulation. The main new feature of the developed simulator is a network structure for the real-time simulation of multiple vehicles, each with a detailed powertrain and engine model. It has a small initial delay, which is determined by the number of connected PCs, but the actual simulation is performed and displayed in real-time after this initial and one-time delay. Several longitudinal controllers, including a PID controller with gain scheduling, an adaptive controller, and a fuzzy controller, are also implemented in the simulator. Various system parameters can be modified interactively in the simulator screen, which is very useful for simulating a platoon of heterogeneous vehicles, in which vehicles with different dynamics and different longitudinal controllers may be involved. The simulator provides an excellent tool to develop vehicle longitudinal controllers and to study platoon behaviors. The developed simulator is also effective in testing the effects of nonlinearities neglected in the controller design phase, such as actuator delays and gear shifting schedule.     

A real-time multi-vehicle simulator for longitudinal controller design

This paper presents a new multi-vehicle simulator for platoon simulation. The main new feature of the developed simulator is a network structure for the real-time simulation of multiple vehicles, each with a detailed powertrain and engine model. It has a small initial delay, which is determined by the number of connected PCs, but the actual simulation is performed and displayed in real-time after this initial and one-time delay. Several longitudinal controllers, including a PID controller with gain scheduling, an adaptive controller, and a fuzzy controller, are also implemented in the simulator. Various system parameters can be modified interactively in the simulator screen, which is very useful for simulating a platoon of heterogeneous vehicles, in which vehicles with different dynamics and different longitudinal controllers may be involved. The simulator provides an excellent tool to develop vehicle longitudinal controllers and to study platoon behaviors. The developed simulator is also effective in testing the effects of nonlinearities neglected in the controller design phase, such as actuator delays and gear shifting schedule.