Control systems and methods for transmission of hybrid power vehicle

US9637115B2 · kind B2 · utility

Assignee

• SAIC MOTOR CORPORATION LIMITED · CN

Inventors

• Jun Zhu · San Diego, US
• Hongxiang Leng · Shanghai, CN
• Chengjie Ma · Shanghai, CN
• Jun Sun · Shanghai, CN
• Jian Wang · Rosharon, US
• Zhengmin Gu · Shanghai, CN

Key dates

• Filing date: Jun 26, 2015
• Grant date: May 2, 2017
• Expiry date: Jan 20, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/946
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A transmission control system for a hybrid-power driving system includes at least a gear shifting actuation module to control engagement of specific gearwheels and a clutch actuation module to control a clutch that couples an engine to the transmission. Gear shifts are required for each of the engine and the electric motor in the hybrid-power driving system. The control system minimizes power loss when a gear shift is occurring for the engine or the electric motor. By selectively controlling the clutch and engagement of specific gearwheels, power loss associated with a gear shift for one of these power sources can be directly offset by using the other power source.