仅事实
特斯拉简化HW4计算机设计以提升效率并降低成本
摘要
特斯拉最新的HW4计算机通过减少组件数量以提升效率。虽然被视为成本削减，但这些变化指向更简洁、集成的设计。
特斯拉在其最新的硬件4（HW4）全自动驾驶（FSD）计算机中实施了重大设计变更，旨在提升效率并降低制造成本。最新分析显示，Model 3和Model Y车型中更新后的HW4计算机采用了更简化的设计，移除了多个组件。值得注意的是，特斯拉取消了各种连接器以及为电路板实时时钟供电的小型电池。此外，线束中的粗铜接地线也被移除，车辆底盘现作为接地使用——这是一种行业标准做法。这些修改不仅减少了物料清单，还简化了整体设计，使线束更轻便且结构更简单。取消单独的接地线并依赖车辆底盘进行电气接地，简化了设计，减少了浪费并降低了成本，同时保持了有效的接地。同样，移除小型实时时钟电池表明特斯拉可能依赖车辆的低压电池，进一步减少了需要采购和安装的组件数量。虽然移除非必要连接器可能引发对未来改装和车辆修改受限的担忧，但从大规模制造的角度来看，每个未使用的接口都是不必要的成本。这款更精简的HW4计算机现在包括一个前保险杠连接器，未来可能允许车主加装前保险杠摄像头。预计即将推出的Model 3车型将出厂配备前保险杠摄像头。这些变化反映了特斯拉持续优化制造流程和车辆架构的努力，降低成本并提升维修便利性。尽管预计下一代FSD计算机AI5将于明年末进入量产，但对HW4的这些改进仍被认为是值得的。特斯拉预计从现在到明年将销售约200万辆汽车，即使AI5即将问世，这些成本节约依然意义重大。
事实核查
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Tesla has implemented significant design changes in its latest Hardware 4 (HW4) Full Self-Driving (FSD) computer, aiming to enhance efficiency and reduce manufacturing costs.
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The updated HW4 computer in Model 3 and Model Y vehicles features a more streamlined design with several components removed.
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Tesla has eliminated various connectors and the small batteries that power the board's real-time clocks.
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The thick copper ground wire in the wiring harness has been removed, with the vehicle's chassis now serving as the ground—a standard industry practice.
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These modifications not only reduce the bill of materials but also simplify the overall design, making the wiring harness lighter and less complex.
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The removal of individual ground wires and reliance on the vehicle's chassis for electrical grounding simplifies the design, reduces waste, and cuts costs while maintaining effective grounding.
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Eliminating the small real-time clock batteries suggests that Tesla may rely on the vehicle's low-voltage battery, further reducing the number of components that need to be sourced and installed.
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