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Magalhães, Júlio
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Water Avoidance Design Strategy for Capacitive Exterior Handles

Ford Motor Company-Douglas Demori, Júlio Magalhães, Anderson Ferreira, Filipe Camargo, Bruno Freitas
Huf Hülsbeck & Fürst-Pedro Dias, Michel Turbiani
  • Technical Paper
  • 2019-36-0187
Published 2020-01-13 by SAE International in United States
Nowadays, capacitive handles are increasing their use in high-end commercial vehicles. This particular handle applies a technology that permits to unlock and even lock the vehicle without a key. As benefit for current life, the customer has the possibility to access and close the vehicles more efficiently and faster, just possessing the key in the pocket or any close compartment that the user is carrying, for example, bag, purse, backpack. Even though, the design of capacitive exterior handle must follow several design strategies to avoid nonfunctional in rainy climate. Water could work as a blocker for the sensor signal captured, special design strategies that must be taken in order to minimize that the liquid could ingress the handle and even be retained on the region that sensor is located. On this two-piece handle not only the parting line location, drain holes and a favorable drainage for liquids inside the handle must be designed, but also a control on the painting capacitance is hugely important for a successful project. Overall, to validate physically the design, test…
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Ignition Switch Material Definition to Avoid Hard to Start Issue

Ford Motor Company-Júlio Magalhães, Douglas Demori, Rosiane Viegas, Bruno Freitas
Huf Hülsbeck & Fürst-Michel Turbiani
  • Technical Paper
  • 2019-36-0138
Published 2020-01-13 by SAE International in United States
Nowadays, develop and launch a new product in the market is hard to every company. When we talk about a launch new vehicle to the customers, this task could be considered more difficult than other products whether imagine how fast the technology should be integrated to vehicle. There are main pillars to be considered in this scenario: low cost, design, innovation, competitiveness and safety. Whereas Brazilian economic scenario, all OEM has to be aware to opportunity to make the product profitable and keep acceptable quality. This combination between low cost and quality could be broken or not distributed equally between the pillars. Based on that, in some cases could have a quality broken that will affect directly the customer. This paper will focus on project to define of the new ignition switch, when the main challenge to achieve the cost reduction target was defined to change a material to electrical terminals. Beyond the material definition, we will discuss about the validation in component level and VOW, quality indicators (internal and external), prevent reoccurrences actions and…
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Robustness Design to Avoid Noise on Exterior Handle System

Ford Motor Company-Douglas Demori, Júlio Magalhães, Cristiane Carla Gonçalves, Helano Santos, Rosiane Viegas
  • Technical Paper
  • 2019-36-0137
Published 2020-01-13 by SAE International in United States
Squeak and rattle are two undesirable occurrences during component operation and during vehicle driving condition, resulting in one of the top complains from costumers. One common grievance could happen during the user exterior handle operation and during side door closing. The exterior handle system during the operation could generate a squeak between interface parts, if materials and geometric tolerances was not been carefully designed. Also, vibration generated during door closing effort, might generate squeak between parts since the reinforcement for exterior handle touches the outer sheet metal internally. For this reason several guidelines might be included to avoid potential noise condition for this system during vehicle lifetime as correct material reduce friction between parts, taking into consideration the geometric condition between parts. Plus, coupling system on handles two pieces should also be evaluated to avoid squeak during use. Not less important, if required anti-shock material system may be applied to eliminate a clash produced between parts during excessive vibration. It is extremely important to evaluate the environment that the vehicle will be exposed since the…
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