Power system for electric vehicle, electric vehicle and motor controller

US9862287B2 · kind B2 · utility

Assignee

• BYD Company Limited · CN

Inventors

• Xiaohua Tang · Tangxia, CN
• Guangming Yang · Tangxia, CN
• Xinxin Zhang · Nanhu, CN
• Zhiyong Du · Lo Wu, CN
• Min Hu
• Yilong Yu · Lo Wu, CN
• Jian Liu · Blacksburg, US
• Zheqing Tang · Nanhu, CN
• Fu Tang · Troy, US

Key dates

• Filing date: Jun 30, 2014
• Grant date: Jan 9, 2018
• Expiry date: Nov 30, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S10/126
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.