How Many Types of Automotive Differential Locks Are There?
2 Answers
Automotive differential locks can be classified into the following types: open differential, multi-plate clutch limited-slip differential, Torsen differential (torque-sensing limited-slip differential), viscous coupling differential, and mechanical locking differential. Below is extended information about differential locks: 1. Open differential: An open differential allows the left and right wheels to rotate at different speeds when the car turns. 2. Multi-plate clutch limited-slip differential: To overcome the traction loss issue of open differentials, the multi-plate clutch limited-slip differential was developed. It is equipped with a clutch consisting of multiple friction plates and steel plates. The friction plates are engaged with the rotating shaft, while the steel plates are engaged with the axle housing. Under normal conditions, the friction plates and steel plates do not interfere with each other. When one side loses traction, due to the pressure transmission from the conical planetary gears, the friction plates and steel plates on the side with traction are pressed together and rotate as one, allowing the wheel with traction to receive more power and helping the vehicle regain traction. 3. Torsen differential (torque-sensing limited-slip differential): The core of the Torsen differential is its worm gear and worm wheel meshing system. Due to its fast response time, the Torsen differential is widely used in vehicles as a center differential and inter-wheel differential. 4. Viscous coupling differential: The key feature of the viscous coupling is that it automatically distributes power to the rear drive axle as needed, without requiring driver intervention. It is typically installed in all-wheel-drive vehicles based on front-wheel drive and operates in front-wheel-drive mode under normal driving conditions.
When off-roading with friends, we often discuss differential locks, which are designed to prevent wheel slip. There are mainly three types: manual differential locks require pressing a button to activate, suitable for hardcore off-roading but unusable at high speeds; electronic differential locks can be activated with one button, integrated into the vehicle's system, convenient for light adventures; and there's the automatic limited-slip differential, like the LSD type, which doesn't fully lock but intelligently adjusts torque, making it more suitable for city driving. For mudding, manual locks are the most powerful, but improper operation can easily damage the chassis, while electronic locks are hassle-free but expensive to repair. When choosing a car, consider your needs and don't just look at the specs.
