Patent ID: 8698346
Filing Date: 2014-04-15
Classification: B60K,B60L,B60W,H02P,Y02T

Abstract:
1. An abnormality detection apparatus for a vehicle, said vehicle including: a power storage device for driving said vehicle; a charging inlet for receiving electric power supplied from a power supply provided externally to said vehicle; a charging circuit for charging said power storage device with said electric power from said power supply; and at least one electric power line for connecting said charging inlet and said charging circuit, and said abnormality detection apparatus comprising: a voltage application circuit for applying a test voltage to said at least one electric power line; and a short circuit detection unit for detecting short circuit of said at least one electric power line in a case where a voltage value of said at least one electric power line, while said voltage application circuit applies said test voltage to said at least one electric power line, is out of a predetermined normal range including a value of said test voltage, and for determining, based on said voltage value, which of a plurality of short circuit modes is a short circuit mode corresponding to said short circuit as detected, wherein said voltage application circuit includes: a first node to which a first voltage is applied; a second node to which a second voltage lower than said first voltage is applied; and a voltage source connected to said first and second nodes for causing a voltage intermediate between said first voltage and said second voltage to be generated as said test voltage, said plurality of short circuit modes includes: a first mode corresponding to a state where said at least one electric power line is short-circuited to said first node; and a second mode corresponding to a state where said at least one electric power line is short-circuited to said second node, and said short circuit detection unit determines that said short circuit mode corresponding to said short circuit is said first mode in a case where said voltage value of said at least one electric power line is larger than an upper limit of said normal range and is within a first range including a value of said first voltage, and determines that said short circuit mode corresponding said short circuit is said second mode in a case where said voltage value of said at least one electric power line is smaller than a lower limit of said normal range and is within a second range including a value of said second voltage.