公开(公告)号：US20170369061A1

公开(公告)日：2017-12-28

申请号：US15541259

申请日：2016-01-21

Applicant: DENSO CORPORATION

Inventor： Tomoyuki SUMI ,  Koji SAKAI ,  Yuuji KAMIYA ,  Hideyuki MORITA

IPC: B60W30/14 ,  H02P29/00 ,  H02P27/06

CPC classification number: B60W30/146 ,  B60L1/00 ,  B60L15/20 ,  B60L2240/421 ,  B60L2240/429 ,  B60L2270/142 ,  F04B49/06 ,  F04B49/065 ,  H02P23/14 ,  H02P27/06 ,  H02P29/00 ,  H02P2205/07

Abstract: A CPU drives an inverter based on a command rotation speed that is inputted from a higher level ECU at a predetermined update interval. The CPU acquires an actual rotation speed of the electric motor, and calculates an accelerated rate and a decelerated rate based on the update interval and a difference between the actual rotation speed and the command rotation speed such that the actual rotation speed changes without reaching the command rotation speed and becoming constant before an end of the update interval. The CPU drives the inverter such that the electric motor rotates at the calculated rate.