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    Structural Battery of Lightweight Vehicles – A New Concept輕量化汽車結構電池—新概念

    The automobile industry has been constantly pushing towards enhancing automobile features to meet increasing mileage and emission requirements. This is being approached through the use of innovative materials and manufacturing processes. The major approaches towards achieving these objectives include reducing aspects such as aerodynamic drag, driveline and transmission losses, tire rolling resistance, and vehicle weight. Among these, reducing vehicle weight seems to be the most cost-effective. OEMs are now gearing up towards light-weighting a vehicle in order to increase performance and efficiency while decreasing emissions and maintaining safety and comfort. Global efforts towards CO2 reduction and fuel optimization have given impetus to the current concept of Lightweight Vehicles.

    汽車工業一直在不斷地推動汽車性能的提升,以滿足日益增長的行駛里程和排放要求。這是通過使用創新材料和制造工藝來實現的。實現這些目標的主要方法包括減少空氣動力阻力、傳動系統和傳輸損失、輪胎滾動阻力和車輛重量等方面。其中,減輕車輛重量似乎是最具成本效益的。為了提高車輛的性能和效率,同時減少排放,并保持安全性和舒適性,整車廠現在都在朝著輕量化方向發展。全球致力于減少二氧化碳和優化燃料的努力推動了目前輕量化汽車這一概念。

    For an average automobile, the weight contributed by individual components such as chassis, powertrain, body and other exterior components is approximately 80% of the total weight. Hence, most of the automakers and OEMs are focusing on such components to achieve overall weight reduction. Studies are being conducted to identify materials that can solve the critical issue of component weight. According to information sources, approximately 10% reduction of vehicle weight contributes to 6-8 % reduction in fuel consumption and 5-6% in emission volume reduction. Though not a huge number, in the growing competitive market, these figures can hugely add to the OEM’s market promotions.

    對于一輛普通汽車來說,底盤、動力總成、車身和其他外部部件等單個部件的重量約占總重量的80%。因此,大多數汽車制造商和整車廠都將重點放在這些組件上,以實現整體減重。目前正在進行研究,以確定能夠解決元件重量這一關鍵問題的材料。根據信息來源,車輛重量減少約10%,可減少6- 8%的燃油消耗和5-6%的排放量。雖然不是一個巨大的數字,但在日益激烈的市場競爭中,這些數字可以大大增加OEM的市場推廣。

    While Powertrain electrification has already helped achieve vehicle weight reduction by partially or totally eliminating ICE (Internal Combustion Engines) practical challenges such as meeting long-range, efficiency and safety still exist. For a BEV (Battery operated Electric Vehicle), the regular lithium-ion, leadacid, nickelmetal hydride batteries that act as primary sources of energy will contribute to significant vehicle weight and can be considered as a target component for further study on weight reduction. Manufacturers are looking at alternate materials for long-range batteries. Aluminum- and zinc-air batteries are cheaper, lighter and safer than conventional batteries.

    雖然動力系統電氣化已經部分或完全消除了內燃機(ICE),從而幫助車輛減輕了重量,但滿足遠程、效率和安全性等實際挑戰仍然存在。對于純電動汽車(BEV)來說,作為主要能源來源的常規鋰離子、鉛酸、鎳氫電池將對汽車的重量起到重要作用,可以作為進一步研究減重的目標部件。制造商正在尋找遠程電池的替代材料。鋁和鋅空氣電池比傳統電池更便宜、更輕、更安全。

    Structural Battery – A New Concept

    While discussions on improvements in current battery design and material compositions have been in progress, researchers at Sweden’s Chalmers University of Technology have come up with an innovative concept of “structural battery” using carbon fiber, which means a vehicle’s structure itself works as a battery if proper design parameters are achieved. The team is currently experimenting with ways to increase the composite thickness in order to overcome the mechanical challenges while boosting total energy storage capacity. The other innovations that are happening in the battery area are listed below:

    結構電池—新概念

    雖然有關改進當前電池設計和材料組成的討論一直在進行中,但瑞典查爾默斯理工大學的研究人員提出了一種創新概念,即使用碳纖維的“結構電池”。這意味著,如果實現了適當的設計參數,車輛的結構本身就像電池一樣工作。該團隊目前正在試驗增加復合材料厚度的方法,以克服機械方面的挑戰,同時提高總儲能能力。以下是電池領域正在發生的其他創新:

    Lightweight cables 輕質電纜

    The wiring technology inside an automobile is designed to withstand higher temperatures and deliver large currents to installed equipment. Currently the gross weight of electrical wiring in a conventional car is around 30Kg out of which 30% can be reduced using weight saving electric wires. Few weight reducing cables developed recently are:

    · Aluminum alloy automotive wire

    · Copper clad aluminum wire (CA) – Battery cables (Currently needed in EV and HEV vehicles)

    · High strength wire cable – Signal lines (1/4th cross section to that of a conventional cable)

    汽車內部的布線技術可以承受更高的溫度,并向安裝的設備輸送大電流。目前,普通汽車的電線總重量約為30公斤,使用節省重量的電線可以減少30%。最近開發的幾種減重電纜有:

    - 鋁合金汽車線材

    - 銅包鋁線(CA- 電池線(目EVHEV車輛需要

    - 高強度線纜 - 信號線(截面是常規電纜的四分之一)

    本文來源: Merton, SENIA編譯,版權歸原創作者及其機構所有,分享僅用于學習、交流,如有侵權請告知刪除。

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