投资者故事

发布于 2017 三月 29

AAM 的下一代 EcoTrac 可提高燃油经济性并减小封装尺寸

American Axle & Manufacturing (AAM) 的业界首款 EcoTrac® 可断开式四驱系统 (AWD) 在几年前推出时便拥有得到显著改进的效率、安全性和性能。现在，第二代 EcoTrac 将以更高的系统效率和封装效益进一步推动这一使命。

底特律– 2017 年 3 月 30 日 – American Axle & Manufacturing (AAM) 的业界首款 EcoTrac® 可断开式全轮驱动系统 (AWD) 在几年前推出时便拥有得到显著改进的效率、安全性和性能。现在，第二代 EcoTrac 将以更高的系统效率和封装效益进一步推动这一使命。

AAM 的 EcoTrac 可断开式全轮驱动系统最初在 2014 款吉普切诺基车型上推出，可在不需要全轮驱动的情况下自动且无缝地仅使用前轮，从而为驾驶员提供全轮驱动车辆的性能以及前轮驱动车辆的燃油经济性。 EcoTrac AWD 系统在取力器 (PTU) 处断开连接，因此传动轴停止旋转，动力不再传递至后轮。更少的旋转意味着更少的燃料消耗和更低的排放。当 EcoTrac 系统感知到道路状况需要全轮驱动时，EcoTrac 会自动重新连接 PTU 和后驱动模组以无缝提供全轮驱动。

明年推出的第二代 EcoTrac 效率更高。它可将一个典型全轮驱动系统的系统阻力降低 90% 以上，而第一代只能降低 80%。此外，AAM 能够减小 EcoTrac 系统的尺寸和重量，而不会影响安全性和功能性。

AAM 副总裁兼首席技术官 Phil Guys 表示：“AAM 的 EcoTrac 是一项突破性技术，显著提高了燃油经济性、车辆操控和越野能力。”“我们已经提高了下一代 EcoTrac 的标准。它更轻质小巧，且扭矩密度更高。这意味着驾驶员将能感受到燃油经济性进一步改善，而更小的封装使客户能够灵活地集成其他车辆系统。” 

EcoTrac 的工作原理

EcoTrac AWD 系统使用先进的传感器和 AAM 专用算法监测并分析路况，然后将许多不需要使用的旋转部件与动力传动系统断开连接。该系统可断开取力器和后驱动模组 (RDM) 的连接，使大部分动力传动系统在前轮驱动模式下停止旋转，包括取力器和后驱动模组准双曲面齿轮组、与齿轮组关联的轴承以及传动轴。

Guys 表示：“当在车辆上添加传统的 AWD 系统时，虽可提高安全性，但同时也会降低燃油经济性（每加仑燃油减少 1 至 3 英里）。”“AAM 的系统抵消了燃油经济性的损失，但仍可让驾驶员体验到 AWD 系统的安全性和功能性。对于寻求节油 AWD 的人士而言，这是一个双赢局面。”

AAM 的 EcoTrac AWD 系统可在驾驶员输入或自动转换事件 (ATE) 发生时接合。AAM 软件工程师在内部为 ATE 开发了独特代码，包括环境和动态事件，如低温、雨滴检测和坡度变化。当从 AAM 电子控制单元接收到 ATE 信号以进入全轮驱动模式时，EcoTrac 系统 与 AWD 无缝接合，而驾驶员不会有明显感知。

自推出以来，AAM 已为客户提供超过 600,000 件 EcoTrac AWD 装置。下一代 EcoTrac 将于 2018 年在全球车辆上推出。到 2019 年底，EcoTrac 将为 AAM 在全球市场带来约 7 亿美元的收入。

更多信息：

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Christopher Son

市场与企业传播副总裁

+1 (313) 758-4814

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AMERICAN AXLE & MANUFACTURING

One Dauch Drive
Detroit, MI 48211-1198

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