发明名称 |
Diagnoseverfahren für eine Drehmomentsteuerung eines elektrisch verstellbaren Getriebes |
摘要 |
<p>A condition of impaired speed and torque control of a parallel electrically variable transmission due to factors beyond nominal modeling and estimation errors is diagnosed under low speed operation. The transmission includes at least one electric machine and a motor torque controller for regulating the transmission input speed and output torque. The motor torque controller includes an open-loop control path based on predetermined torques and accelerations and a closed loop control path based on input speed error. The presence of a larger than expected closed-loop correction magnitude, combined with low output speed and one or more other conditions is used to diagnose a condition of potential torque error, in which case the transmission control is altered to prevent unwanted operation.</p> |
申请公布号 |
DE102005022247(B4) |
申请公布日期 |
2011.01.20 |
申请号 |
DE20051022247 |
申请日期 |
2005.05.13 |
申请人 |
GENERAL MOTORS CORP. |
发明人 |
HEAP, ANTHONY H.;HSIEH, TUNG-MING;HUBBARD, GREGORY A.;STEINMETZ, TODD M.;TAO, XUEFENG T. |
分类号 |
F16H59/14;B60K1/02;B60W20/00;B60W50/02;F16H3/72;G01M13/02 |
主分类号 |
F16H59/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|