Patent US3577929A successfully refreshed from Google Patents.
US3577929A
Expired / Lapsed
US
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Electric vehicle driving and controlling apparatus
Assignee: Hitachi Ltd
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Filing: 1968-10-07
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Granted: 1971-05-11
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Expires: 1988-10-07
Abstract
Abstract An electric vehicle driving and controlling apparatus, wherein during the low-speed operation, single-phase AC power is supplied to a synchronous motor type rotary machine through a thyristor group to thereby control the rotation of said rotary machine, and during the ultra-high-speed operation, three-phase AC power available at the armature terminals of said rotary machine is also applied to a linear motor to thereby accelerate the latter.
Inventors
- 👤 Yoshimitsu Onoda
- 👤 Hisakatsu Kiwaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:51
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/002; B60L15/005; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
209 words
An electric vehicle controlling apparatus, comprising in combination: means for driving said vehicle at speeds lower than a predetermined speed including an adhesive drive system which contains a synchronous motor type rotary machine having a stator and a rotor, one of which has polyphase armature windings wound thereon while the other of which has field windings wound thereon, a control switching circuit having an input side and an output side coupled on said input side thereof to an external vehicle power source and on the output side thereof to said armature windings, said controlled switching circuit being controlled according to the relative position of said stator and said rotor, so as to convert an input voltage into a polyphase AC voltage, and a drive wheel driven by said rotary machine; means for driving said vehicle at speeds higher than said predeTermined speed, including said adhesive drive system and a nonadhesive drive system, said nonadhesive drive system including a linear motor connected in parallel to said armature windings of said adhesive drive system, whereby said vehicle is driven only by said adhesive drive system at speeds lower than said predetermined speeds and is driven by said both adhesive and said nonadhesive drive systems at speeds higher than said predetermined speed.
Claim 2
Dependent Claim
209 words
An electric vehicle controlling apparatus, comprising in combination: means for driving said vehicle at speeds lower than a predetermined speed including an adhesive drive system which contains a synchronous motor type rotary machine having a stator and a rotor, one of which has polyphase armature windings wound thereon while the other of which has field windings wound thereon, a control switching circuit having an input side and an output side coupled on said input side thereof to an external vehicle power source and on the output side thereof to said armature windings, said controlled switching circuit being controlled according to the relative position of said stator and said rotor, so as to convert an input voltage into a polyphase AC voltage, and a drive wheel driven by said rotary machine; means for driving said vehicle at speeds higher than said predeTermined speed, including said adhesive drive system and a nonadhesive drive system, said nonadhesive drive system including a linear motor connected in parallel to said armature windings of said adhesive drive system, whereby said vehicle is driven only by said adhesive drive system at speeds lower than said predetermined speeds and is driven by said both adhesive and said nonadhesive drive systems at speeds higher than said predetermined speed.
Claim 3
Dependent Claim
27 words
An electric vehicle controlling apparatus according to claim 1, wherein said adhesive drive system further includes means for supplying single-phase AC power to said controlled switching circuit.
Claim 4
Dependent Claim
39 words
An electric vehicle controlling apparatus according to claim 1, wherein said adhesive drive system further includes a distributor, having a rotary segment thereon, connected with said rotor for rotation therewith and for supplying drive power to said drive wheel.
Claim 5
Dependent Claim
48 words
An electric vehicle controlling apparatus according to claim 3, wherein said adhesive drive system further includes a gate control circuit connected to said distributor for generating control signals to be delivered to said controlled switching circuit in response to the position of the rotary segment of said distributor.
Claim 6
Dependent Claim
52 words
An electric vehicle controlling apparatus according to claim 4, wherein said controlled switching circuit comprises a plurality of controlled thyristors, the respective input and output electrodes of which comprise the input and output sides of said switching circuit and whose control electrodes are connected to the outputs of said gate control circuit.
Claim 7
Independent Claim
234 words
The method of operating an electric vehicle having a controlling apparatus which comprises: an adhesive drive system including a synchronous type rotary machine having a stator and a rotor, one of which has polyphase armature windings wound thereon, while the other of which has field windings wound thereon, and a distributor connected to said rotor; a controlled switching circuit having an input side and an output side coupled on said input side thereof to an external vehicle power source and on the output side thereof to said armature windings, said controlled switching circuit being controlled according to the relative position of said stator and said rotor, so as to convert an input voltage into a polyphase AC voltage; and a drive wheel driven by said distributor and said rotary machine; and a nonadhesive drive system having a linear motor connectable in parallel to said armature windings of said adhesive drive system, said method of operating said controlling apparatus, so as to control the speed of said vehicle comprising the steps of: supplying power only to said adhesive drive system at speeds below a predetermined speed and supplying power to both said adhesive drive system and said nonadhesive drive system at speeds above said predetermined speed, whereby said vehicle will be accelerated by the linear motor of said nonadhesive system at high speeds above said predetermined speed to thereby propel said vehicle at ultra-high speeds.
Claim 8
Independent Claim
234 words
The method of operating an electric vehicle having a controlling apparatus which comprises: an adhesive drive system including a synchronous type rotary machine having a stator and a rotor, one of which has polyphase armature windings wound thereon, while the other of which has field windings wound thereon, and a distributor connected to said rotor; a controlled switching circuit having an input side and an output side coupled on said input side thereof to an external vehicle power source and on the output side thereof to said armature windings, said controlled switching circuit being controlled according to the relative position of said stator and said rotor, so as to convert an input voltage into a polyphase AC voltage; and a drive wheel driven by said distributor and said rotary machine; and a nonadhesive drive system having a linear motor connectable in parallel to said armature windings of said adhesive drive system, said method of operating said controlling apparatus, so as to control the speed of said vehicle comprising the steps of: supplying power only to said adhesive drive system at speeds below a predetermined speed and supplying power to both said adhesive drive system and said nonadhesive drive system at speeds above said predetermined speed, whereby said vehicle will be accelerated by the linear motor of said nonadhesive system at high speeds above said predetermined speed to thereby propel said vehicle at ultra-high speeds.
Claim 9
Dependent Claim
70 words
The method according to claim 6, wherein during ultra-high speeds, said step of controlling said adhesive drive system includes the step of operating said synchronous motor type rotary machine as a phase-advancer, so as to increase its field to thereby cause a leading current to flow in the armature windings, whereby the leading current flow will compensate the lag in current flow caused by the operation of the linear motor.
Claim 10
Dependent Claim
46 words
A method according to claim 6, wherein said step of supplying power to said adhesive drive system includes the step of: reversing the field polarity of said synchronous motor type rotary machine; and changing the position of the distributor in said synchronous motor type rotary machine.
References Cited (Backward Citations)
US3320506A
Cited
US3233559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |