Power supply control apparatus and method
First Claim
1. A power supply control apparatus comprising:
- a power supply which supplies power to at least one system of the vehicle;
a vehicle starting apparatus which is located between the power supply and the at least one of system, and which is switched from one state to another when the vehicle is started up;
an abnormality detecting portion which detects an abnormality in the vehicle; and
a controller which controls, based on a detection result from the abnormality detecting portion, an amount of power supplied from the power supply over a preset time interval when the vehicle starting apparatus is switched from on to off,wherein, when the abnormality has been detected in the vehicle, the abnormality detecting portion determines the type of the abnormality, and the controller changes the preset time interval, according to the determined type of the abnormality.
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Accused Products
Abstract
When first and second ignition switches are turned from on to off, a first or second CPU determines whether an abnormality has occurred in an electronically controlled brake system. When the first or second CPU determines that an abnormality has occurred, the first and second CPUs immediately turn off first and second main relays, respectively. When both the first and second CPUs determine that operation is normal and an occupant detection switch is off, the first and second CPUs keep the first and second main relays on for a predetermined period of time as a self-maintaining process during normal operation. In this self-maintaining process during normal operation, the period during which the first and second main relays are kept on is changed according to the voltage of a vehicle battery.
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Citations
13 Claims
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1. A power supply control apparatus comprising:
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a power supply which supplies power to at least one system of the vehicle; a vehicle starting apparatus which is located between the power supply and the at least one of system, and which is switched from one state to another when the vehicle is started up; an abnormality detecting portion which detects an abnormality in the vehicle; and a controller which controls, based on a detection result from the abnormality detecting portion, an amount of power supplied from the power supply over a preset time interval when the vehicle starting apparatus is switched from on to off, wherein, when the abnormality has been detected in the vehicle, the abnormality detecting portion determines the type of the abnormality, and the controller changes the preset time interval, according to the determined type of the abnormality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13)
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11. A power supply control method comprising:
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detecting an abnormality in a vehicle; determining whether a vehicle starting apparatus, which is switched from one state to another when the vehicle is started up, has switched from on to off; controlling, based on whether the abnormality has been detected, an amount of power supplied to a system of the vehicle from a power supply over a preset time interval when the vehicle starting apparatus has switched from on to off; when the abnormality has been detected in the vehicle, determining the type of the abnormality; and changing the preset time interval, according to the determined type of abnormality. - View Dependent Claims (12)
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Specification