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To guarantee control system’s performance and shorten the development cycle during the development process of hydraulic automatic transmission,a calibration system on CAN for high-power AT ECU is designed based on XCP. In this system,it is possible that the master dynamically searching the slaves available on bus and data synchronization between master and slave is also achieved. Real-time measurement and on-line calibration can be executed during the running process of transmission control unit,so the calibration result is displayed in time. Calibration by true value and physical value are both available. Experimental results showed that this system operated stably and reliably and had strong time-out handling ability. 相似文献
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高速响应电磁阀弹簧疲劳寿命的仿真计算 总被引:1,自引:0,他引:1
使用有限元技术对高速响应电磁阀弹簧元件的疲劳寿命计算进行仿真可以准确计算弹簧在实际使用时内部应力的分布,根据该应力可以进行疲劳寿命设计计算,提高计算的准确性,具有工程实际意义。 相似文献
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驱动防滑系统是车辆主动安全系统的重要组成部分,更加有效快速的对ASR进行控制有利于提高汽车自身的安全性,基于CAN总线的网络具有极高的可靠性、良好的实时性、突出的灵活性和优良的性能价格比.文中通过CAN总线技术实现驱动防滑控制系统同发动机电控系统之间的通信,控制发动机电控单元对发动机的输出功率进行调节,在通过ASR的控制实现提高汽车行驶稳定性和动力性的同时,可以简化执行机构和控制逻辑,提高控制效果,通过仿真实现了CAN通信协议在数据通信中的应用,仿真的效果表明使用CAN总线进行数据传输和控制是可行的. 相似文献
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从换挡平顺性的角度出发,确定涡轮转速变化率的峰值、涡轮转速平均变化率及挡位3个参 数作为客观评价指标,并将其细化定义;基于神经网络的基本原理,利用误差逆传播神经网络(BPNN)对履带车辆综合传动装置换挡品质评价进行客观描述;应用Matlab/Simulink软件的神经网络工具箱函数,建立用于评价车辆换挡品质的神经网络模型,并借助于GUI工具箱开发换挡品质客观评价等级软件进行仿真研究。通过神经网络测试结果与主观评价对比,证明此方法与传统主观评价方法具有较好的一致性,增强了换挡品质评价的客观性、针对性和灵活性。 相似文献
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Anti-slip regulation system(ASR)is an electron-ic control systemto i mprove vehicle’s dynamic andsafety performance during acceleration based on ABS.ASR needs different strategies to control vehicle be-havior for different road conditions.For example,when afront-wheel drive vehicle run on a wet or slip-pery road,the two driving wheels will both slip dur-ing a panic accelerating andthe vehicle can’t fully usethe longitudinal adhesive force to accelerate.ASRneeds to reduce the output torqu… 相似文献