Automatic traction control for two separately excited motors...

Details Automatic traction control for two separately excited motors... Automatic traction control for two separately excited motors...

2011-06-07

2011-06-07

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Motors electrically connected in cascade or tandem

C318S811000, C318S599000, C318S139000

Reexamination Certificate

active

07956558

ABSTRACT:
An automatic traction control system is provided for an electric or hybrid-electric vehicle. The automatic traction control system may be used with vehicles using two separately excited motors where the armatures of the motors are connected in series to provide differential control. The automatic traction control system monitors and compares the voltages across the armatures of the two motors. If the voltage differential exceeds a predetermined threshold, it is determined that one of the wheels is spinning and current is diverted from the motor driving the spinning wheel to the motor driving the non-spinning wheel.

REFERENCES:
patent: 4616166 (1986-10-01), Cooper et al.
patent: 6023137 (2000-02-01), Kumar et al.
patent: 6064173 (2000-05-01), Bock
patent: 7329960 (2008-02-01), Kumar

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