| 发明名称 | Output bump management in a strong hybrid vehicle | ||
| 摘要 | A method for managing output bump/clunk in a neutral state in a strong hybrid vehicle includes calculating a motor torque for an electric traction motor connected to a third node of a planetary gear set. The motor torque is calculated as a product of a predetermined inertia of the electric traction motor, the calculated acceleration of the engine, and a gear ratio of the planetary gear set. The calculated motor torque is commanded from the electric traction motor via a controller in a direction opposite the calculated acceleration of the output shaft, including transmitting a motor torque command to the electric traction motor for the duration of the neutral state. The vehicle includes the engine, a damper assembly, the transmission, and the controller. | ||
| 申请公布号 | US9238461(B1) | 申请公布日期 | 2016.01.19 |
| 申请号 | US201414454967 | 申请日期 | 2014.08.08 |
| 申请人 | GM Global Technology Operations LLC | 发明人 | Liu Chia-Shang;Ye Shaochun;Morris Robert L. |
| 分类号 | B60L11/00;B60K1/00;B60W20/00;B60L15/20 | 主分类号 | B60L11/00 |
| 代理机构 | Quinn Law Group, PLLC | 代理人 | Quinn Law Group, PLLC |
| 主权项 | 1. A method for managing output bump or clunk in a hybrid vehicle having an engine, a transmission having an input member connected to the engine, an output member, and at least one planetary gear set, and a controller, the method comprising: calculating, via the controller, an acceleration of an output shaft of the engine when the transmission is in a neutral state, wherein the output shaft of the engine is connected to a first node of the planetary gear set in the neutral state of the transmission, and wherein the output member of the transmission is continuously connected to a second node of the planetary gear set; calculating, via the controller, a motor torque for an electric traction motor connected to a third node of the planetary gear set as a product of a predetermined inertia of the electric traction motor, the calculated acceleration of the engine, and a gear ratio of the planetary gear set; and managing the output bump or clunk by commanding the calculated motor torque from the electric traction motor via the controller in a direction opposite to the calculated acceleration of the output shaft, including transmitting a motor torque command to the electric traction motor for a duration of the neutral state. | ||
| 地址 | Detroit MI US | ||