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ST/RS Fords
Focus RS
2016 rs - awd
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<blockquote data-quote="rick021808" data-source="post: 15141550" data-attributes="member: 176986"><p>Whether it's fwd based or not, it can send 100% torque to one of the rear wheels. I've also just read that the gear ratio is different front and back, the rear ratio is slightly taller..... </p><p></p><p></p><p>The rear diff in this car is really great technology and maybe one day they can use this technology for both front and rear. With the awd system on this car, having a center differential is overrated and not needed. It just adds unnecessary weight to the car. </p><p></p><p></p><p><a href="http://www.automobilemag.com/features/columns/2016-ford-focus-rs-gets-the-worlds-most-advanced-awd-system/" target="_blank">http://www.automobilemag.com/features/columns/2016-ford-focus-rs-gets-the-worlds-most-advanced-awd-system/</a></p><p></p><p></p><p>“The system for the Focus RS has additional torque capacity and has a gear ratio offset,” he said. The rear has a taller gear ratio than the front, which allows overspeeding the rear wheels, which, in turn, allows “true torque vectoring,” Kuczera said.</p><p></p><p>But the Focus RS does not have the Evoque’s decoupling driveshaft, Fritz said.</p><p></p><p>“It’s permanently attached. The front/rear ratio mismatch is unique to the*Focus RS*-- to get more torque to the rear. During normal operation or straight-line driving, the overspeed isn’t really doing anything. The clutches slip to take up the difference in the ratio mismatch. But during handling events, we try to vector or send torque to one rear wheel -- the outside rear wheel in a turn. We take advantage of the ratio mismatch to get more torque to the rear axle than without a ratio mismatch,” which Ford says is about 1.8 percent.</p><p></p><p>Avoid talking torque-split</p><p></p><p>Twinster can immediately send torque to the rear without spinning the front wheels.</p><p></p><p>“It has a pre-emptive torque control, just like a normal on-demand system,” Fritz said. “There is no center differential so we tend to avoid talking about torque splits, because it confuses people when they’re thinking about a differential. Our active, on-demand system can send up to 100 percent of the available torque to the rear axle. Once it hits the rear axle, it can send up to 100 percent of that torque to individual left or right sides. If you were [in a scenario where] the front wheels were losing traction, then 100 percent of the torque to drive the car is going to the rear axle.”</p><p></p><p>But the Ford press release says that only 70 percent of torque can go to the rear axle</p><p></p><p>“That’s a bit misleading,” Fritz said. “It’s potentially 50 to 70 percent, but in other scenarios where you have no traction with the front wheels, then it’s 100 percent to the rear wheels. I’ve tried to clarify that, but it gets confusing.”</p></blockquote><p></p>
[QUOTE="rick021808, post: 15141550, member: 176986"] Whether it's fwd based or not, it can send 100% torque to one of the rear wheels. I've also just read that the gear ratio is different front and back, the rear ratio is slightly taller..... The rear diff in this car is really great technology and maybe one day they can use this technology for both front and rear. With the awd system on this car, having a center differential is overrated and not needed. It just adds unnecessary weight to the car. [url]http://www.automobilemag.com/features/columns/2016-ford-focus-rs-gets-the-worlds-most-advanced-awd-system/[/url] “The system for the Focus RS has additional torque capacity and has a gear ratio offset,” he said. The rear has a taller gear ratio than the front, which allows overspeeding the rear wheels, which, in turn, allows “true torque vectoring,” Kuczera said. But the Focus RS does not have the Evoque’s decoupling driveshaft, Fritz said. “It’s permanently attached. The front/rear ratio mismatch is unique to the*Focus RS*-- to get more torque to the rear. During normal operation or straight-line driving, the overspeed isn’t really doing anything. The clutches slip to take up the difference in the ratio mismatch. But during handling events, we try to vector or send torque to one rear wheel -- the outside rear wheel in a turn. We take advantage of the ratio mismatch to get more torque to the rear axle than without a ratio mismatch,” which Ford says is about 1.8 percent. Avoid talking torque-split Twinster can immediately send torque to the rear without spinning the front wheels. “It has a pre-emptive torque control, just like a normal on-demand system,” Fritz said. “There is no center differential so we tend to avoid talking about torque splits, because it confuses people when they’re thinking about a differential. Our active, on-demand system can send up to 100 percent of the available torque to the rear axle. Once it hits the rear axle, it can send up to 100 percent of that torque to individual left or right sides. If you were [in a scenario where] the front wheels were losing traction, then 100 percent of the torque to drive the car is going to the rear axle.” But the Ford press release says that only 70 percent of torque can go to the rear axle “That’s a bit misleading,” Fritz said. “It’s potentially 50 to 70 percent, but in other scenarios where you have no traction with the front wheels, then it’s 100 percent to the rear wheels. I’ve tried to clarify that, but it gets confusing.” [/QUOTE]
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