Electric differential traction-control drive system

Details Electric differential traction-control drive system Electric differential traction-control drive system

2005-07-05

2005-07-05

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S003000, C318S014000

Reexamination Certificate

active

06914410

ABSTRACT:
In an electrical drive system, an electric differential comprises a first rotor for driving a first drive wheel, a second rotor for driving a second drive wheel, the first and second rotors capable of independent relative rotation, and a common stator for driving the first and second rotors. The common stator may comprise a single winding for driving both rotors or first and second windings for driving the first and second rotors respectively. A processor and a sensor system monitor parameters such as torque, speed, magnetic flux, etc. to detect the loss of traction by one or both drive wheels and adjust the operation of the motor until traction is regained.

REFERENCES:
patent: 3578873 (1971-05-01), Baez
patent: 4782257 (1988-11-01), Secher et al.
patent: 5647321 (1997-07-01), Ichikawa et al.
patent: 6153959 (2000-11-01), Lorenzo
patent: 2001/0035049 (2001-11-01), Balch et al.
patent: 2003/0067234 (2003-04-01), White et al.
patent: 2003/0080729 (2003-05-01), Das

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