Need some help (AWD related)
10-08-2009, 05:18 PM
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Need some help (AWD related)
I'm looking for more specific details about AWD drivetrain layouts of certain cars, such as the WRX or similar cars. I've tried searching around but can't seem to find anything of value. Just very broad descriptions. Pictures would be a plus. Thanks
10-08-2009, 05:32 PM
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10-08-2009, 05:45 PM
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10-08-2009, 05:48 PM
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Re: Need some help (AWD related)
Basically you have open diff, limited slip, and auto torque balancing. AWD systems mix the 3 and use traction control to grab the slipping wheel to move power to the wheel that isn't (you'll see how when you read about an open diff... www.howstuffworks.com). A locker is a differential that send power to all wheels all the time and they all spin at the same speed- which means they don't like turns or paved roads usually.
10-08-2009, 05:59 PM
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Re: Need some help (AWD related)
Basically you have open diff, limited slip, and auto torque balancing. AWD systems mix the 3 and use traction control to grab the slipping wheel to move power to the wheel that isn't (you'll see how when you read about an open diff... www.howstuffworks.com). A locker is a differential that send power to all wheels all the time and they all spin at the same speed- which means they don't like turns or paved roads usually.
10-08-2009, 06:03 PM
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Re: Need some help (AWD related)
here is one link http://www.hondasuv.com/members/show...ht=differences
but this is the only thing you will need to read for your project....http://en.wikipedia.org/wiki/Four-wheel_drive
I exspect +rep fro this
but this is the only thing you will need to read for your project....http://en.wikipedia.org/wiki/Four-wheel_drive
I exspect +rep fro this
10-08-2009, 06:11 PM
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Re: Need some help (AWD related)
It's seriously like legos man (until they start adding electronics, that's when you see the cheap systems like in the video). Audi quattro was known for an atb/torsen center with opens or limited slips front and rear (new style controls front and rear diffs). Now for the mazdaspeed 6... that one is weird.
It is fwd biased so power is 50% at the least to the front, the driveshaft to the back is always turning and the rear diff engages and disengages smoothly and varies at all times and is controlled by a computer.
It is fwd biased so power is 50% at the least to the front, the driveshaft to the back is always turning and the rear diff engages and disengages smoothly and varies at all times and is controlled by a computer.
All-New Active Torque Split All-Wheel Drive System
The Mazdaspeed6 is equipped with Mazda's new active torque split, all-wheel drive system. Based on the road-proven system of the Mazda6 available in some global markets, but featuring more aggressive transfer of torque to the rear axle on all road surfaces in accordance with driving conditions, the new all-wheel-drive system achieves a fine balance between sporty control over the car that makes it particularly fun to drive and handling stability on snowy or wet surfaces or under other challenging road conditions. Power and torque are faithfully and thoroughly transferred to the road surface for maximum efficiency and performance.
The system uses real-time input data on steering angle, yaw rate, lateral G force and engine status to determine road surface and driving conditions. The active torque coupling mounted in front of the rear differential is electronically controlled accordingly, adjusting front/rear wheel torque distribution between 100:0 and 50:50 to deliver optimum drive power to each wheel. The result is powerful acceleration and positive handling regardless of constantly changing road conditions, as well as the ability to fully balance the car in a turn by deft use of the accelerator pedal.
The Mazdaspeed6's onboard computer automatically determines driving and road conditions so the driver can relax and enjoy the pleasure of the drive. Three different modes of front/rear torque distribution are selected by the system: Normal, Sports, and Snow, (for slippery surfaces). The Power Take Off (PTO) system that that aggressively distributes torque to the rear axle is fitted with its own water-cooled cooling system.
A new rear differential with greater torque capacity is employed by the system to deliver a high level of reliability. Increased torsional rigidity of the propeller shaft and rear differential mount improves the response of torque transfer to the rear wheels and delivers a more rigid feel to the ride under acceleration. And a limited slip differential is used in the rear differential optimizes transfer of torque to the left and right rear wheels, realizing solid traction and linear vehicle control that delivers a stable feeling ride when cornering.
The Mazdaspeed6 is equipped with Mazda's new active torque split, all-wheel drive system. Based on the road-proven system of the Mazda6 available in some global markets, but featuring more aggressive transfer of torque to the rear axle on all road surfaces in accordance with driving conditions, the new all-wheel-drive system achieves a fine balance between sporty control over the car that makes it particularly fun to drive and handling stability on snowy or wet surfaces or under other challenging road conditions. Power and torque are faithfully and thoroughly transferred to the road surface for maximum efficiency and performance.
The system uses real-time input data on steering angle, yaw rate, lateral G force and engine status to determine road surface and driving conditions. The active torque coupling mounted in front of the rear differential is electronically controlled accordingly, adjusting front/rear wheel torque distribution between 100:0 and 50:50 to deliver optimum drive power to each wheel. The result is powerful acceleration and positive handling regardless of constantly changing road conditions, as well as the ability to fully balance the car in a turn by deft use of the accelerator pedal.
The Mazdaspeed6's onboard computer automatically determines driving and road conditions so the driver can relax and enjoy the pleasure of the drive. Three different modes of front/rear torque distribution are selected by the system: Normal, Sports, and Snow, (for slippery surfaces). The Power Take Off (PTO) system that that aggressively distributes torque to the rear axle is fitted with its own water-cooled cooling system.
A new rear differential with greater torque capacity is employed by the system to deliver a high level of reliability. Increased torsional rigidity of the propeller shaft and rear differential mount improves the response of torque transfer to the rear wheels and delivers a more rigid feel to the ride under acceleration. And a limited slip differential is used in the rear differential optimizes transfer of torque to the left and right rear wheels, realizing solid traction and linear vehicle control that delivers a stable feeling ride when cornering.