Method and device for the common regulation of several electric

Details Method and device for the common regulation of several electric Method and device for the common regulation of several electric

1997-01-13

1999-04-27

Ip, Paul

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Slipping and/or racing control for electric motors

318 71, 303110, 303111, B61C 1508

Patent

active

058982817

ABSTRACT:
In a motor vehicle driving system comprising several asynchronous electric machines (11, 12) each coupled to a driving wheel (13, 14), a polyphase supply device (2) and a regulating device (6) using a reference signal (SR) representative of a speed of one of the driving wheels, the invention provides a method and a device allowing an optimum electric supply to be assured when one or more of the driving wheels skid in drive mode or locks in the event of braking. For each driving wheel, a measured speed signal (NM1, NM2) is processed in a detection unit (23, 24) which detects skidding or locking and delivers binary skid (P1, P2) and locking (B1, B2) signals and a corrected speed signal (NC1, NC2) representing, as required, the speed prior to skidding or locking. A selection unit (25) selects one of the corrected speed signals as reference signal. Applications to electric or hybrid-powered vehicles.

REFERENCES:
patent: 4335337 (1982-06-01), Okamatsu et al.
patent: 4893880 (1990-01-01), Arikawa
patent: 4979784 (1990-12-01), Arikawa
patent: 5011235 (1991-04-01), Arikawa
patent: 5100209 (1992-03-01), Arikawa

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