公开(公告)号：US08731762B1

公开(公告)日：2014-05-20

申请号：US13869317

申请日：2013-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Wei D. Wang ,  Lan Wang ,  Jinming Liu ,  Beth A. Bezaire ,  Bryan N. Roos ,  William R. Cawthorne

IPC: B60L9/00

CPC classification number: B60L15/2054 ,  B60L15/2045 ,  B60L2240/423 ,  B60L2240/443 ,  B60L2240/507 ,  B60L2250/26 ,  B60W10/06 ,  B60W20/00 ,  B60W30/1882 ,  B60Y2400/435 ,  F02D41/0007 ,  F02D41/021 ,  F02D2041/1432 ,  F02D2200/101 ,  F02D2200/602 ,  Y02T10/144 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7283

Abstract: A method of controlling a powertrain system includes determining a torque request; selecting feasible input torque and input speed operating points; calculating aggregate system power losses; determining turbo efficiency as a function of a difference between a feasible input torque rate of change and a desired input torque rate of change required to reach the desired output torque; summing the turbo efficiency to the aggregate system power losses to determine total system losses corresponding to feasible input torques and input speed capable of producing the desired output torque; determining a feasible input torque and input speed corresponding to a substantially minimum total system power loss; and selecting as a desired input speed and input torque that corresponds to the substantially minimum total system power loss.

Abstract translation: 控制动力系统的方法包括确定扭矩请求; 选择可行的输入转矩和输入速度工作点; 计算总体系统功率损耗; 根据可行的输入转矩变化率与达到所需输出转矩所需的输入转矩变化率之间的差值来确定涡轮效率; 将涡轮效率与总体系统功率损耗相加，以确定对应于可产生所需输出转矩的可行输入转矩和输入速度的总系统损耗; 确定对应于基本上最小的总系统功率损耗的可行输入转矩和输入速度; 并且选择对应于基本上最小的总系统功率损耗的期望的输入速度和输入转矩。