All Wheel Drive Vehicle
First Claim
1. An all-wheel-drive vehicle including at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit, wherein each of said motors comprises:
- (i) at least one annular magnetic conductor on which an even number of permanent magnets are uniformly arranged with a predetermined pitch;
(ii) an annular frame separated from said magnetic conductor by an air gap and bearing an even number of electromagnets arranged in pairs one opposite to another; and
(iii) a device for switching the polarity of a potential difference applied to said electromagnets, where a number m1 of the pairs of opposing electromagnets in one electric motor and a number m2 of the pairs of opposing electromagnets in the other electric motor obey the relation m1>
m2 and the power supply control unit is adapted to feed each electric motor separately and independently.
1 Assignment
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Accused Products
Abstract
The present invention relates to the field of electric-motor-driven vehicles such as cars, motorcycles, scooters, electric-motor trains, etc. Embodiments of the invention seek to provide an economic all-wheel-drive (AWD) vehicle possessing high dynamic characteristics and a relatively simple scheme of control over the operation of electric motors. An AWD vehicle according to the disclosed invention contains at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit. At least one of said motors is a start-up (barring) motor and at least one is a cruise (propulsion) motor. Each of said motors comprises (i) at least one circular magnetic conductor on which an even number of permanent magnets are uniformly arranged with a certain pitch; (ii) a circular frame separated from said magnetic conductor by an air gap and bearing an even number of electromagnets arranged in pairs one opposite to another; and (iii) a device switching the polarity of voltage applied to said electromagnets. Each pair of electromagnets situated one opposite to another corresponds to a certain phase of the electric motor, the number (m1) of phases in the start-up electric motor and the number (m2) of phases in the cruise electric motor obey the relation m1>m2. It is also desired that the number (n1) of permanent magnets in the start-up electric motor and the number (n2) of permanent magnets in the cruise electric motor would obey the relation n1>n2. The power supply control unit can feed each electric motor separately and independently.
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Citations
17 Claims
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1. An all-wheel-drive vehicle including at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit, wherein each of said motors comprises:
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(i) at least one annular magnetic conductor on which an even number of permanent magnets are uniformly arranged with a predetermined pitch; (ii) an annular frame separated from said magnetic conductor by an air gap and bearing an even number of electromagnets arranged in pairs one opposite to another; and (iii) a device for switching the polarity of a potential difference applied to said electromagnets, where a number m1 of the pairs of opposing electromagnets in one electric motor and a number m2 of the pairs of opposing electromagnets in the other electric motor obey the relation m1>
m2 and the power supply control unit is adapted to feed each electric motor separately and independently. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. (canceled)
Specification