[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.64,0:00:03.72,Default,,0000,0000,0000,,Torsen is a trademark of the jtech corporation
Dialogue: 0,0:00:06.27,0:00:13.79,Default,,0000,0000,0000,,The Torsen differential has many patented components and is the most unique and ingenious method of providing
Dialogue: 0,0:00:14.13,0:00:17.84,Default,,0000,0000,0000,,differential action while overcoming the traction difference problem
Dialogue: 0,0:00:24.61,0:00:30.57,Default,,0000,0000,0000,,The internal components of a Torsen are quite different from that of a conventional differential at
Dialogue: 0,0:00:31.60,0:00:35.82,Default,,0000,0000,0000,,The heart of the system lies a specially shaped gear pair assembly
Dialogue: 0,0:00:39.14,0:00:42.79,Default,,0000,0000,0000,,Let's see the cross-sectional shape of these gears at the mating point
Dialogue: 0,0:00:45.01,0:00:51.43,Default,,0000,0000,0000,,As can be seen one gear is a spur gear and the other one is a worm gear a
Dialogue: 0,0:00:53.18,0:00:57.76,Default,,0000,0000,0000,,Torsen works on the simple principle of worm gear worm wheel
Dialogue: 0,0:00:59.42,0:01:02.50,Default,,0000,0000,0000,,That is a spinning worm gear can rotate the wheel
Dialogue: 0,0:01:04.31,0:01:07.60,Default,,0000,0000,0000,,But the rotating wheel cannot spend the worm gear
Dialogue: 0,0:01:10.19,0:01:13.72,Default,,0000,0000,0000,,Throughout this discussion just keep this principle in mind a
Dialogue: 0,0:01:15.68,0:01:18.52,Default,,0000,0000,0000,,Pair of such worm wheels are fitted with the case
Dialogue: 0,0:01:25.74,0:01:30.32,Default,,0000,0000,0000,,So the engine power received by the case is transferred to the worm wheels
Dialogue: 0,0:01:34.55,0:01:37.63,Default,,0000,0000,0000,,Each end of the wheels is fitted with a spur gear
Dialogue: 0,0:01:41.97,0:01:44.87,Default,,0000,0000,0000,,Now let's consider different driving scenarios
Dialogue: 0,0:01:46.17,0:01:48.17,Default,,0000,0000,0000,,When the vehicle moves straight?
Dialogue: 0,0:01:48.75,0:01:55.64,Default,,0000,0000,0000,,The worm wheels will push and turn the worm gears. So both the drive wheels will rotate at the same speed
Dialogue: 0,0:01:56.94,0:02:03.02,Default,,0000,0000,0000,,Please note here that in this condition the worm wheels. Do not spin on its own access in
Dialogue: 0,0:02:03.81,0:02:08.15,Default,,0000,0000,0000,,This condition the whole mechanism moves as a single solid unit
Dialogue: 0,0:02:10.56,0:02:17.18,Default,,0000,0000,0000,,When the vehicle is negotiating a right turn the left wheel needs to rotate at a higher speed than the right wheel
Dialogue: 0,0:02:19.30,0:02:23.04,Default,,0000,0000,0000,,This speed differential is perfectly supported in the Torsen
Dialogue: 0,0:02:24.79,0:02:31.11,Default,,0000,0000,0000,,The worm gear of the faster left axle will make the corresponding worm wheel spin on its own axis
Dialogue: 0,0:02:35.08,0:02:42.34,Default,,0000,0000,0000,,On the other side relative to the case the slow right axle is turning in the opposite direction
Dialogue: 0,0:02:51.82,0:02:55.47,Default,,0000,0000,0000,,Thus the right worm wheel will spin in the opposite direction
Dialogue: 0,0:03:05.07,0:03:12.05,Default,,0000,0000,0000,,The meshing spur gears at the ends of the worm wheel will make sure that the worm wheels are spinning at the same speed
Dialogue: 0,0:03:14.54,0:03:17.80,Default,,0000,0000,0000,,Thus it guarantees a perfect differential action
Dialogue: 0,0:03:23.16,0:03:30.74,Default,,0000,0000,0000,,Now let's try to understand how the torsion overcomes the drive wheel traction difference problem as you might be aware
Dialogue: 0,0:03:31.05,0:03:33.05,Default,,0000,0000,0000,,when your vehicle encounters a
Dialogue: 0,0:03:33.12,0:03:40.13,Default,,0000,0000,0000,,Situation as shown the slippery wheel starts to spin very rapidly and will draw the majority of the engines power
Dialogue: 0,0:03:42.37,0:03:45.40,Default,,0000,0000,0000,,As a result the vehicle will get stuck
Dialogue: 0,0:03:48.08,0:03:55.03,Default,,0000,0000,0000,,But if a Torsen differential is used in this case as soon as the slippery wheel starts to spin excessively
Dialogue: 0,0:03:55.31,0:03:58.27,Default,,0000,0000,0000,,The speed change will be transferred to the worm wheel
Dialogue: 0,0:03:59.06,0:04:06.16,Default,,0000,0000,0000,,The right worm wheel transfers the speed change to the left worm wheel since they are connected through spur gears
Dialogue: 0,0:04:06.95,0:04:08.95,Default,,0000,0000,0000,,Here comes the tricky part
Dialogue: 0,0:04:09.11,0:04:12.61,Default,,0000,0000,0000,,the left side worm wheel will not be able to turn the
Dialogue: 0,0:04:12.89,0:04:19.42,Default,,0000,0000,0000,,corresponding worm gear because as we said a worm wheel cannot drive a worm gear as a
Dialogue: 0,0:04:21.71,0:04:27.07,Default,,0000,0000,0000,,Result the whole mechanism gets locked and the left and right wheels turn together
Dialogue: 0,0:04:27.86,0:04:34.57,Default,,0000,0000,0000,,This allows a large amount of torque to be transferred to the high traction wheel and the vehicle can thereby
Dialogue: 0,0:04:34.91,0:04:36.100,Default,,0000,0000,0000,,overcome the traction difference problem
Dialogue: 0,0:04:39.83,0:04:43.66,Default,,0000,0000,0000,,To carry the load to more worm wheel pairs are added
Dialogue: 0,0:04:46.84,0:04:47.84,Default,,0000,0000,0000,,If
Dialogue: 0,0:04:47.84,0:04:53.26,Default,,0000,0000,0000,,You are familiar with the other common technologies used to overcome the traction difference problem
Dialogue: 0,0:04:53.36,0:04:56.17,Default,,0000,0000,0000,,You might have noticed a great advantage of the Torsen
Dialogue: 0,0:04:57.56,0:05:03.52,Default,,0000,0000,0000,,While the other technologies allow the drive wheel to slip for a limited amount of time before it gets locked in
Dialogue: 0,0:05:04.01,0:05:06.91,Default,,0000,0000,0000,,Torsen the locking action is instantaneous
Dialogue: 0,0:05:07.43,0:05:13.12,Default,,0000,0000,0000,,That means as soon as the vehicle encounters a traction difference track, the wheels will get locked
Dialogue: 0,0:05:14.60,0:05:20.80,Default,,0000,0000,0000,,To know more about the clutch pack LSD technology. Please check the next video. Thank you