Composite material control arm of passenger vehicle

Abstract

The invention discloses a composite material control arm of a passenger vehicle. The composite material control arm of the passenger vehicle comprises a control arm body, a front bushing, a rear bushing and a connection joint. The control arm body comprises a carbon fiber fabric laminate and a PMI foam core material. The carbon fiber fabric laminate comprises a control arm body integral overlay and a control arm body local overlay. A bushing insulation overlay is arranged at the contacts between the front bushing and the PMI foam core material and between the rear bushing and the PMI foam corematerial. The bushing insulation overlay covers the PMI foam core material, with the exterior being wrapped by a bushing wrapping overlay. A joint isolation overlay is arranged between the connectionjoint and the PMI foam core material, with the exterior being wrapped by the joint wrapping overlay. The control arm body, the front bushing, the rear bushing and the connection joint are cured together through the HP-RTM process. The composite material control arm of the passenger vehicle adopts insert molding, so that the structural strength is high, the composite material control arm replacesthe existing steel structure control arms and cast aluminum structure control arms, the weight loss efficiency is high, and the fatigue performance is superior.

Description

Technical field [0001] The invention relates to the field of automobiles, in particular to a composite material control arm for passenger cars. Background technique [0002] With the rapid development of the automobile industry, problems such as energy consumption, exhaust emissions and environmental pollution have become increasingly serious. According to research, 30% of oil is consumed by automobiles, and 25% of global CO2 emissions come from automobile emissions. The lightweight of automobiles is an effective measure to reduce exhaust emissions and environmental pollution in the automobile industry. Studies have shown that if the vehicle weight is reduced by 10%, fuel efficiency can be increased by 6%-8%; for every 100 kg reduction in vehicle kerb weight, fuel consumption per 100 kilometers can be reduced by 0.3-0.6 liters; vehicle weight reduced by 1%, fuel consumption can be reduced by 0.7 %. In terms of driving, the acceleration performance of the car will also be impro...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic passenger cars mainly use steel stamping control arms and cast aluminum control arms, and the structure is heavy, while welding and casting will produce micro-defects in the structure, and the fatigue life is p...

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