The differential lock is one of the most frequent configurations mentioned in the cross-country circle, but many people know only that there is a lock, and they don't really understand its rationale and use。
Let's start with the speed differential. When the vehicle turns, the inner wheel travels at a shorter distance than the outer side, and if the two wheels turn at exactly the same speed, the inner tyre slips on the ground. The power of the differential is to allow two wheels of the same axis to rotate at different rotation speeds, making the turn smooth. But the differential has a fatal weakness: it always transmits power to the less resistance wheel. On the side of the cross-country road, once a wheel has been emptied or trapped in a mud pit, all the power flows to the empty wheel, which is not moving。
The effect of the differential lock is to "lock" the differential when needed, to force two wheels to rotate at the same speed and to ensure that the gripping wheel can be powered。
The rv can have three locks at most. Post-bridge differential locks were the most used to address one-sided back-axis slippages and were the hallmarks of most hard-wing land cruisers. The front bridge differential lock resolves the one-sided slide of the front axis, which is useful on the climb and cross-axis surfaces, but the turn after the front lock becomes heavy and cannot be used on the pavement. The central differential lock is used to lock power distribution between the front and the rear axes and to ensure a stable twist output. Benz g-rated with three locks, called "the king of the three locks", but there's not a lot of scenes where three locks can be used in everyday cross-country。
There are two irons using the differential lock. First, it is used only at low-speed off-roads and must be unlocked in a timely manner at speeds greater than 20 kilometres per hour, failing which the injury transmission system will be removed. Second, do not rush the wheel after locking, especially for front locks, and the large angle shift will have a huge stress on the front axis。
It's not entirely impossible to lock a car without the speed. Many vehicles are now equipped with electronic-restricted slides (eds) to simulate the effect of differential locks by imposing power on the wheel. Although the maximum extrication capacity is less mechanical than the mechanical lock, the moderate difficulty of overcoming the cross-country road is more than sufficient。
