1987-Montero · Rear Axle a · страница 7 из 56 · Открыть оригинал PDF ↗
MAKING EFFECTIVE USE OF LIMITED SLIP DIFFERENTIAL Effective Use in Combination with Brakes
If a wheel is in contact with a slippery road surface and has begun to spin, using the brakes in combination
with the limited slip differential will provide even greater traction capability. The resistance caused by the
brakes will further increase the drive torque of the engine, and this increased torque will increase the clutch
plate pressing force of the pressure ring, thus increasing the traction. Also, the drive force transmitted to the
brakes will not function as real drive force. This is shown in the illustration below.
In the illustration, the application rate is Rt = 2, and, supposing the torque from the brake operation is 1. a
drive torque of 1 + 1 = 2 will be applied to the spinning wheel (the right wheel), and a drive torque of twice
that which is applied to the spinning wheel, or (1 + 1) x 2 = 4, will be applied to the wheel which is not
spinning (the left wheel). However, because the brake force of 1 is a negative value with regard to the
propulsion torque of each wheel, the propulsion torque actually obtained by the right wheel is (I + 1) - 1
= 1, and that obtained by the left wheel is [(I + 1) x 2 - I] = 3.
Therefore, the total drive torque is 1 + 3 = 4. In the same circumstances, the total drive torque of a
conventional differential is 1 + 1 = 2, and that of a limited slip differential when the brakes are not used in *.,
combination is 1 + 2 = 3. This represents an increase in the traction by a factor of 2 over that of a.?
conventional differential, and by a factor of 1.3 over that of a limited slip differential when the brakes are not,
used. ‘,.. 1.
llF103
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