Method of preventing battery discharge and electronic control unit performing the same
AssigneeHyundai Autron Co., Ltd.
InventorKyoung Tae Kim
Life of this patent
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Abstract
Disclosed is a method for an electronic control unit to prevent the discharge of a battery. The method includes the steps of detecting an off signal of vehicle function power connected to a battery and monitoring a voltage of the battery, detecting a low voltage of the battery based on a result of the monitoring and transmitting an operation inhibition signal for preventing power consumption of the battery to a plurality of controllers, and determining whether the plurality of controllers switch to a sleep mode in response to the operation inhibition signal.
Claims12
A method for an electronic control unit (ECU) to prevent a discharge of a battery, the method comprising steps of:
- detecting an off signal of vehicle function power (IGN) connected to a battery and monitoring a voltage of the battery;
- detecting a low voltage of the battery, which is lower than a predetermined voltage, based on a result of the monitoring and transmitting an operation inhibition signal for preventing power consumption of the battery to a plurality of controllers;
- and
- determining, by a control unit of the ECU, whether the plurality of controllers switch to a sleep mode in response to the operation inhibition signal received by the plurality of controllers,
- wherein, in the step of determining whether the plurality of controllers switch to the sleep mode,
- the control unit is configured for differently controlling shifting of the plurality of controllers to a low power mode after the step of determining whether the plurality of controllers switch to the sleep mode, according to whether all of the plurality of controllers has switched to the sleep mode or a specific controller among the plurality of controllers has not switched to the sleep mode.
An electronic control unit, comprising:
- a monitoring unit configured to monitor a battery voltage in response to an off signal of vehicle function power (IGN) connected to a battery;
- a communication unit configured to transmit an operation inhibition signal for preventing power consumption of the battery to a plurality of controllers when a low voltage of the battery, which is lower than a predetermined voltage, is detected based on a result of the monitoring of the monitoring unit;
- and
- a control unit configured to determine whether the plurality of controllers switches to a sleep mode in response to the operation inhibition signal of the communication unit and to control the plurality of controllers based on a result of the determination,
- wherein the control unit is configured for differently controlling shifting of the plurality of controllers to a low power mode after the determining whether the plurality of controllers switch to the sleep mode, according to whether all of the plurality of controllers has switched to the sleep mode or a specific controller among the plurality of controllers has not switched to the sleep mode.
Dependencies are inferred from the claim text.