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首页> 外文会议>SAE World Congress Experience >New Method to Achieve High Hydraulic Pressure and Improved Gear Pump Performance in Active Height Control (AHC) System
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New Method to Achieve High Hydraulic Pressure and Improved Gear Pump Performance in Active Height Control (AHC) System

机译：实现高液压的新方法，有源高度控制（AHC）系统中的高液压和改进齿轮泵性能

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摘要

Vehicle weight reduction is becoming more and more important as increasingly stringent fuel economy regulations are introduced around the world. This development improved the hydraulic gear pump performance of the next-generation Active Height Control (AHC) suspension and achieved significant weight reduction of 5 kg by eliminating the auxiliary pump accumulator. To realize the necessary high-pressure with a high flow rate, the sealing performance of the pump at the tips of the gear teeth is very important. This was achieved by developing “breaking-in” technology that shaves away the aluminum housing using the gear teeth and creates zero clearance between the teeth tips and the housing. To reduce the frictional loss torque of the pump, which was identified as an issue of this technology, it was necessary to completely shave away the initial clearance in the breaking-in process. The mechanism for the state where the aluminum housing had not been completely shaved away was explained by focusing on the tooth tip stress during the breaking-in process. As a result, the design requirements were clarified. This technology was incorporated into the product design and manufacturing process. The developed technology was adopted for mass production after incorporating it into the product design and manufacturing process and confirming that it improved performance without increasing cost.
机译：随着越来越严格的燃料经济性法规，车辆重量减少变得越来越重要。该开发改善了下一代主体高度控制（AHC）悬架的液压齿轮泵性能，并通过消除辅助泵蓄能器实现5千克的显着减少。为了实现具有高流速的必要高压，泵齿的尖端的泵的密封性能非常重要。这是通过开发使用齿轮齿剃掉铝壳的“破碎”技术来实现的，并在牙齿尖端和壳体之间产生零间隙。为了减少泵的摩擦损失扭矩，该泵被确定为这项技术的问题，有必要完全刮掉破碎过程中的初始间隙。通过聚焦在破碎过程中的齿尖应力上，解释了铝壳未被完全剃除的状态的机制。因此，澄清了设计要求。该技术纳入产品设计和制造过程中。在将产品设计和制造过程中纳入产品设计和制造过程后，通过批量生产采用开发的技术，并确认其提高性能而不增加成本。

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