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所在平台: Udemy |
课程主页: https://www.udemy.com/course/automatic-transmission/
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**Automatic Transmission Systems: Hardware & Control 课程总结** 本课程专为汽车、动力总成或系统集成领域的工程师设计，提供对自动变速器（AT）更深入、更实用的理解。课程内容涵盖AT的机械、液压和电子系统的相互作用，旨在为专业人士提供技术深度和可操作的见解。 **核心内容概览:** * **引言:** 回顾变速器发展历史，并介绍不同类型的变速器（AT、CVT、DCT、AMT）。 * **硬件概述:** 深入讲解液力变矩器（Torque Converter）的结构与工作原理，以及齿轮组、离合器、带式制动器和动力湿式离合器总成的设计。 * **液力变矩器系统:** 探讨K-Factor、耦合点、扭矩倍增，并讲解锁止离合器（Lock-up Clutch）策略、滑差控制以及CPA和NVH（噪声、振动与声振粗糙度）优化。 * **液压与电液控制:** 详细介绍阀体、压力调节器、脉宽调制（PWM）电磁阀、输入/输出传感器，以及锁止电磁阀和热补偿技术。 * **变速器控制单元 (TCU):** 涵盖TCU的架构、信号处理、内存管理，以及与ECU和ESP（电子稳定程序）的CAN通信，并介绍自适应软件逻辑和换挡时序调度。 * **离合器到离合器控制:** 重点讲解咬合点（Bite point）、扭矩传递、离合器填充，以及重叠/欠叠错误（Overlap/Underlap Errors）和换挡冲击，对比压力控制与蓄能器系统。 * **换挡质量与标定:** 区分主观与客观换挡质量，介绍VDV（人感评价）和AVL DRIVE测量技术，并讨论车内与台架标定方法。 * **回顾与工程案例分析:** 总结关键控制策略，分析常见故障模式，并通过案例诊断换挡冲击、扭矩误差和滑差问题。 **课程亮点:** 课程强调“知其然，更知其所以然”，不仅教授自动变速器的工作原理，更侧重于理解其工作背后的“为什么”，帮助工程师在校准、诊断、零部件设计或车辆集成等工作中，将理论与实践有效结合。
Are you an engineer working in automotive, powertrain, or systems integration who wants a deeper, more applied understanding of automatic transmissions?This course is engineered for professionals needing technical depth, exploring the interplay of mechanical, hydraulic, and electronic systems that drive modern automatic transmissions.You'll gain actionable insight into torque converters, clutch control, electro-hydraulic actuation, and Transmission Control Unit (TCU) software logic. Whether you work in calibration, diagnostics, component design, or vehicle integration, this course bridges theory and practice. Key Topics Covered:Section 1: IntroductionHistorical overview of transmission evolutionTypes of transmissions: AT, CVT, DCT, AMTSection 2: Hardware OverviewTorque converter construction & operationGear sets, clutches, band brakesDynamic wet clutch assembliesSection 3: Torque Converter SystemsK-Factor, coupling point, and torque multiplicationLock-up clutch strategy and slip controlCPA and NVH optimizationSection 4: Hydraulic and Electro-Hydraulic ControlValve body and pressure regulatorsPWM solenoids, input/output sensorsLock-up solenoids and thermal compensationSection 5: Transmission Control Unit (TCU)TCU architecture, signal processing, and memoryCAN communication with ECU and ESPAdaptive software logic and shift schedulingSection 6: Clutch-to-Clutch ControlBite point, torque transfer, and clutch fillOverlap/underlap errors and shift shockPressure control vs. accumulator systemsSection 7: Shift Quality and CalibrationSubjective vs. objective shift qualityVDV and AVL DRIVE measurement techniquesIn-vehicle vs. rig calibration methodsSection 8: Review & Engineering Case StudiesSummary of key control strategiesCommon failure modesCase examples: shift shock, torque error, slip diagnosticsWhy Take This Course?Knowing how something works is not enough; you need to understand why it works the way it does.
