Patent ID: 7626395
Filing Date: 2009-12-01
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
1. A hybrid vehicle testing system for performing a test of a hybrid vehicle in which a drive unit including a first motor and a second motor, an inverter unit including a first inverter circuit for the first motor and a second inverter circuit for the second motor, and an engine having an output shaft are mounted as power sources so that power transmission is allowed between the engine, the first motor, and the second motor, wherein the testing system includes a locking mechanism for locking the output shaft of the engine, the testing system is arranged to perform the test by: locking the engine by the locking mechanism; operating the first and second motors in a first mode that the first motor is connected to the first inverter circuit and the second motor is connected to the second inverter circuit to obtain output characteristics of each motor operated in the first mode; operating the first and second motors in a second mode that the first motor is connected to the second inverter circuit and the second motor is connected to the first inverter circuit to obtain output characteristics of each motor operated in the second mode; and determining whether the output characteristics of each motor are normal or not.