ELECTRIC VEHICLE AND CONTROL METHOD FOR ELECTRIC VEHICLE
First Claim
1. An electric vehicle, comprising:
- an electrical storage device;
a charging inlet that is connected to an external power supply device;
a charging relay including a positive-side relay and a negative-side relay, the positive-side relay being provided on a positive side of a charging line that connects the charging inlet and the electrical storage device, and the negative-side relay being provided on a negative side of the charging line; and
an electronic control unit configured to make a welding diagnosis for determining whether welding of the charging relay has occurred,in a case of making the welding diagnosis of the charging relay with the external power supply device not being connected to the charging inlet, the electronic control unit being configured to start the welding diagnosis when a vehicle speed becomes equal to or higher than a first vehicle speed, interrupt the welding diagnosis when the vehicle speed becomes equal to or lower than a second vehicle speed during the welding diagnosis, and resume the welding diagnosis when the vehicle speed becomes equal to or higher than the first vehicle speed during the interruption of the welding diagnosis, the second vehicle speed being equal to or lower than the first vehicle speed.
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Accused Products
Abstract
An electronic control unit of an electric vehicle is configured to, in a case of making a welding diagnosis of a charging relay with an external power supply device not being connected to a charging inlet, start the welding diagnosis when a vehicle speed becomes equal to or higher than a first vehicle speed, interrupt the welding diagnosis when the vehicle speed becomes equal to or lower than a second vehicle speed during the welding diagnosis, and resume the welding diagnosis when the vehicle speed becomes equal to or higher than the first vehicle speed during the interruption of the welding diagnosis. The second vehicle speed is equal to or lower than the first vehicle speed.
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Citations
6 Claims
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1. An electric vehicle, comprising:
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an electrical storage device; a charging inlet that is connected to an external power supply device; a charging relay including a positive-side relay and a negative-side relay, the positive-side relay being provided on a positive side of a charging line that connects the charging inlet and the electrical storage device, and the negative-side relay being provided on a negative side of the charging line; and an electronic control unit configured to make a welding diagnosis for determining whether welding of the charging relay has occurred, in a case of making the welding diagnosis of the charging relay with the external power supply device not being connected to the charging inlet, the electronic control unit being configured to start the welding diagnosis when a vehicle speed becomes equal to or higher than a first vehicle speed, interrupt the welding diagnosis when the vehicle speed becomes equal to or lower than a second vehicle speed during the welding diagnosis, and resume the welding diagnosis when the vehicle speed becomes equal to or higher than the first vehicle speed during the interruption of the welding diagnosis, the second vehicle speed being equal to or lower than the first vehicle speed. - View Dependent Claims (2, 3, 4, 5)
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6. A control method for an electric vehicle, the electric vehicle including an electrical storage device, a charging inlet that is connected to an external power supply device, a charging relay, and an electronic control unit, the charging relay including a positive-side relay and a negative-side relay, the positive-side relay being provided on a positive side of a charging line that connects the charging inlet and the electrical storage device, and the negative-side relay being provided on a negative side of the charging line, the control method comprising:
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making, by the electronic control unit, a welding diagnosis for determining whether welding of the charging relay has occurred; and when the electronic control unit makes the welding diagnosis of the charging relay with the external power supply device not being connected to the charging inlet, starting the welding diagnosis, by the electronic control unit, when a vehicle speed becomes equal to or higher than a first vehicle speed, interrupting the welding diagnosis by the electronic control unit when the vehicle speed becomes equal to or lower than a second vehicle speed during the welding diagnosis, and resuming the welding diagnosis by the electronic control unit when the vehicle speed becomes equal to or higher than the first vehicle speed during the interruption of the welding diagnosis, the second vehicle speed being equal to or lower than the first vehicle speed.
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Specification