Dual-motor power system and dual-motor hybrid power system for vehicle

US9789754B2 · kind B2 · utility

Assignee

• SAIC MOTOR CORPORATION LIMITED · CN

Inventors

• Jun Zhu · San Diego, US
• Hailong Ge · Shanghai, CN
• Sidong Luo · Shanghai, CN
• Rui Li · Dearborn Heights, US
• Xu Chai · Shanghai, CN
• Bin Xu · Ningbo City, CN
• Zhenxing Fu · Ann Arbor, US
• Hongxiang Leng · Shanghai, CN
• Jian Wang · Rosharon, US
• Jun Sun · Shanghai, CN

Key dates

• Filing date: Aug 27, 2015
• Grant date: Oct 17, 2017
• Expiry date: Feb 12, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/93
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A dual-motor power system or a dual-motor hybrid power system for a vehicle comprises a first motor, a second motor, an intermediate shaft, a first gear set disposed between a first driving shaft, and an intermediate shaft. The first driving shaft couples with the intermediate shaft via the first gear set, a second gear set disposed between the second driving shaft and the intermediate shaft, and a single synchronizer disposed around the second driving shaft. The synchronizer can be switched between a neutral position, a first-speed-ratio position, and a second-speed-ratio position. In the neutral position, the second driving shaft is decoupled from the first and second gear sets. In the first-speed-ratio position, the synchronizer couples the second driving shaft with the intermediate shaft via the first gear set. In the second-speed-ratio position, the synchronizer couples the second driving shaft with the intermediate shaft via the second gear set.