Patent ID: 8406946

Claim:
A single-power-source multi-CVT differential system with a stabilizing device, comprising: a single power source (P 100 ); a first continuously variable transmission (CVT 100 ) and a second continuously variable transmission (CVT 200 ) arranged to automatically change a respective speed ratio according to a load state on a respective first wheel set (W 100 ) and second wheel set (W 200 ), each said continuously variable transmission having a first end connected to receive power from the single power source; a stabilizing device (SDT 100 ) having dual end shafts connected to a respective second end of the first continuously variable transmission (CVT 100 ) and the second continuously variable transmission (CVT 200 ) or between driven load sides, said stabilizing device setting a coupling torque and providing a sliding damping effect caused by fluid viscosity, fluid damping, mechanical friction, or electromagnet eddy current damping when the set coupling torque is exceeded to stabilize the differential system in case of unstable operation caused by varied loads at individual load sides during driving operation; and at least one of a first transmission (T 100 ), a second transmission (T 200 ), and both the first transmission (T 100 ) and the second transmission (T 200 ); wherein when said differential system is provided with the first transmission (T 100 ), said first wheel set (W 100 ) includes at least one first wheel and is connected to be driven by the second end of the first continuously variable transmission (CVT 100 ) or to receive power from the first transmission (T 100 ); wherein when said differential system is provided with the second transmission (T 200 ), said second wheel set (W 200 ) includes at least one second wheel and is connected be driven by the second end of the second continuously variable transmission (CVT 200 ), or to receive power from the second transmission (T 200 ); wherein when said differential system is provided with both the first transmission (T 100 ) and the second transmission (T 200 ), said first transmission (T 100 ) is connected to receive power from the second end of the first continuously variable transmission (CVT 100 ) and said second transmission (T 200 ) is connected to receive power from the second end of the second continuously variable transmission (CVT 200 ); and wherein the first and second continuously variable transmissions (CVT 100 , CVT 200 ) differentially transmit power from the single power source (P 100 ) to the individual wheel sets (W 100 , W 200 ) to drive the individual wheel sets at different speeds according to the respective load state of each of the individual wheel sets.