Relay control device and method

Abstract

A relay control device according to one embodiment of the present invention includes a processor configured to output a basic control signal for controlling the operation of a relay; a monitoring unit configured to monitor the operating state of the processor and output a decision control signal having a signal level such as a difference, and a retain signal for maintaining the operating state of the relay, depending on the operating state of the processor; and a relay state determination unit configured to output either the basic control signal or the retain signal as a relay control signal for controlling the on / off state of the relay, based on the signal level of the decision control signal.

Claims

1. A processor configured to output basic control signals for controlling the operation of a relay, A monitoring unit is configured to monitor the operating state of the processor and output a determination control signal having a signal level such as a difference based on the operating state of the processor, and a retain signal for maintaining the operating state of the relay. A relay control device comprising: a relay state determination unit configured to output either the basic control signal or the retain signal as a relay control signal for controlling the on / off state of the relay, based on the signal level of the determination control signal.

2. The monitoring unit, The relay control device according to claim 1, wherein when the operating state of the processor is in a reset state, a switching control signal is output to the relay state determination unit, which is a determination control signal having a different signal level from the determination control signal output when the processor is in a normal state.

3. The monitoring unit, The relay control device according to claim 2, configured to output the switching control signal only when both software monitoring using feedback information for a request and hardware monitoring using whether or not a trigger signal has been received have failed.

4. The relay state determination unit, The relay control device according to claim 2, configured to output the basic control signal as the relay control signal when the switching control signal is not received, and to output the retain signal as the relay control signal when the switching control signal is received.

5. The monitoring unit, The relay control device according to claim 1, wherein when the operating state of the processor is in a reset state, it is configured to output the retain signal having a signal level corresponding to the basic control signal output by the processor in the normal state immediately before the reset state.

6. The monitoring unit, The relay control device according to claim 1, configured to output the retain signal at a second signal level if the reset state of the processor persists for a reference time, and to output the retain signal at a first signal level after the reference time.

7. A battery pack comprising a relay control device according to any one of claims 1 to 6.

8. An automobile comprising a relay control device according to any one of claims 1 to 6.

9. A basic signal reception stage that receives basic control signals to control the operation of a relay, A control signal reception stage that receives a determination control signal having a signal level such as a difference depending on the operating state of the processor, and a retain signal for maintaining the operating state of the relay, A relay control method comprising: a control signal output step of outputting either the basic control signal or the retain signal as a relay control signal that controls the on / off state of the relay, based on the signal level of the decision control signal.

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