Title:
QUASI-DIFFERENTIAL LOCK CONTROL SYSTEM, DIFFERENTIAL RATE CONTROL SYSTEM AND METHOD, AND AUTOMOBILE
Document Type and Number:
WIPO Patent Application WO/2021/213499
Kind Code:
A1
Abstract:
Disclosed in the present invention are a quasi-differential lock control system, a differential rate control system and method, and an automobile. The system comprises n three-phase motor windings connected in series by means of three-phase delta connection; connection points of adjacent windings in each side is the n-section points of the side; (1) each vertex of a large triangle is connected to one n-section point on an opposite side to form a bisector; the large triangle is divided by three medians into parts that are equivalent to two small triangles in terms of electrical connection; the vertexes of the large triangle are connected to a three-phase power supply; a motor in each small triangle still keeps the original rotation direction; the connection of the three medians enables the motors to achieve a quasi-differential lock function, and the disconnection thereof achieve a differential speed function; and such a phase sequence connection relationship is called the Apollonius's theorem of three-phase AC motors; or (2) the connection of three n-section points achieves the quasi-differential lock function, and the disconnection thereof achieves the differential speed function; and such a phase sequence connection relationship is called the theorem of three perpendiculars of three-phase AC motors. The method comprises controlling the conduction rate Cy of switches to modulate the differential rate γ.
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Inventors:
YANG MING (CN)
Application Number:
PCT/CN2021/089266
Publication Date:
October 28, 2021
Filing Date:
April 23, 2021
Export Citation:
Assignee:
YANG MING (CN)
International Classes:
H02P25/18; B60K1/02; B60L15/20; H02P5/50
Foreign References:
| CN111884563A | 2020-11-03 | |||
| CN104467592A | 2015-03-25 | |||
| CN1138238A | 1996-12-18 | |||
| JPH06217409A | 1994-08-05 |
Other References:
WANG FENG-YUAN;XIE XIAN-YI;HE JIAN-YONG;XU QIAO-NI: "Electric Vehicle Motor Double Closed Loop Speed Control Strategy of Difference", COMPUTER SIMULATION, vol. 32, no. 12, 15 December 2015 (2015-12-15), pages 107 - 112+254, XP055859817, ISSN: 1006-9348
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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