Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Slipping and/or racing control for electric motors
Patent
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.
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patent: 4979784 (1990-12-01), Arikawa
patent: 5011235 (1991-04-01), Arikawa
patent: 5100209 (1992-03-01), Arikawa
Apter Robert
Bossoney Luc
Ip Paul
SMH Management Services AG
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