FAIL SAFE APPARATUS AND METHOD FOR ECO-FRIENDLY VEHICLE
First Claim
1. A fail safe apparatus for an eco-friendly vehicle, comprising:
- a main battery configured to supply driving power of a vehicle;
a battery controller configured to manage a state of charge of the main battery;
a power converter configured to convert power supplied from the main battery into power for charging an auxiliary battery;
a motor controller configured to drive a motor with the power supplied from the main battery;
a hybrid starter generator configured to start an engine and charge the main battery; and
a vehicle controller configured to monitor a capacity voltage of at least one of the power converter and the motor controller when there is an error in data communication of the battery controller, and configured to control charging and discharging of the main battery based on monitored results of the capacity voltage.
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Accused Products
Abstract
The fail safe apparatus for an eco-friendly vehicle includes: a main battery to supply driving power of a vehicle; a battery controller to manage a state of charge of the main battery; a power converter to convert power supplied from the main battery into power for charging an auxiliary battery; a motor controller to drive a motor with the power supplied from the main battery; a hybrid starter generator to start an engine and charge the main battery; and a vehicle controller to monitor a capacity voltage of any one of the power converter and the motor controller when there is an error in data communication of the battery controller and control charging and discharging of the main battery based on the monitored results.
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Citations
14 Claims
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1. A fail safe apparatus for an eco-friendly vehicle, comprising:
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a main battery configured to supply driving power of a vehicle; a battery controller configured to manage a state of charge of the main battery; a power converter configured to convert power supplied from the main battery into power for charging an auxiliary battery; a motor controller configured to drive a motor with the power supplied from the main battery; a hybrid starter generator configured to start an engine and charge the main battery; and a vehicle controller configured to monitor a capacity voltage of at least one of the power converter and the motor controller when there is an error in data communication of the battery controller, and configured to control charging and discharging of the main battery based on monitored results of the capacity voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A fail safe method for an eco-friendly vehicle, comprising:
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sensing, by a vehicle controller, an occurrence of a data communication problem of a battery controller; determining whether engine starting succeeds and clutch connection driving is made, when the occurrence of the data communication problem is sensed; determining, if it is confirmed that the engine starting succeeds and the clutch connection driving is made, whether a capacity voltage of at least one of a power converter and a motor controller is within a range from a lower limit threshold to an upper limit threshold; and charging a main battery and inhibiting discharging of the main battery when the capacity voltage is within the range. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification