公开(公告)号：WO2015088429A1

公开(公告)日：2015-06-18

申请号：PCT/SE2014/051472

申请日：2014-12-09

Applicant: ROTOTEST INTERNATIONAL AB

Inventor： ENGSTRÖM, Nils G. ,  FÄRNLUND, Jonny ,  ENGSTRÖM, Christian

IPC: G01M17/007 ,  G01M15/00

CPC classification number: H02P29/62 ,  G01M17/0074 ,  H02H9/041 ,  H02K15/125 ,  H02P29/64

Abstract: The present invention relates to a method for use in dynamometer testing of a vehicle (100), the vehicle (100) including at least a first wheel shaft and at least one first vehicle power source for providing power to said first wheel shaft, said first wheel shaft being connected to a vehicle dynamometer system, said vehicle dynamometer system comprising a first controllable dynamometer power source (201) for providing power to said first wheel shaft, said first dynamometer power source being an electrical machine (201) comprising a stator and a rotor, said stator comprising a stator winding. The method includes: - determining whether a first temperature ( T 1 ) is below a first temperature limit ( T lim1 ), and - heating said electrical machine (201) by applying a current ( I heat ) to said stator winding when said first temperature ( T 1 ) is below said first temperature limit ( T lim1 ).

Abstract translation: 本发明涉及一种在车辆（100）的测力计测试中使用的方法，所述车辆（100）至少包括第一轮轴和用于向所述第一轮轴提供动力的至少一个第一车辆动力源，所述第一 所述车辆测力计系统包括用于向所述第一轮轴提供动力的第一可控测力计动力源（201），所述第一测功机动力源是包括定子和 转子，所述定子包括定子绕组。 该方法包括： - 确定第一温度（T 1）是否低于第一温度极限（T lim1），以及 - 当所述第一温度（T lim1）在所述第一温度 （T 1）低于所述第一温度极限（T lim1）。