Configuration of battery management device for temperature measurement of microcontroller, and control method therefor
The present invention relates to a temperature measurement device of a microcontroller of a battery management system (BMS) and a method therefor, and enables accurate temperature measurement of a microcontroller while facilitating channel utilization by connecting a temperature measurement device for a microcontroller and a temperature measurement device for an application to one channel of the microcontroller.
1 . A battery management device comprising:
a microcontroller configured to control a boot mode and an application mode of a battery management system (BMS), and including a plurality of input/output channels;
a first temperature measurement unit configured to measure one or more application temperatures of the BMS;
a first switch having a first end connected to the first temperature measurement unit and a second end connected to a designated channel of the microcontroller among the plurality of input/output channels;
a second temperature measurement unit configured to measure a temperature of the microcontroller; and
a second switch having a first end connected to the second temperature measurement unit and a second end connected to the designated channel of the microcontroller,
wherein each of the first switch and the second switch has an on/off state set differently according to a control of the microcontroller.
2 . The battery management device of claim 1 , wherein if there is a software update instruction, the microcontroller is further configured to turn on the second switch, control the first switch off, and receive temperature data measured by the second temperature measurement unit through the designated channel.
3 . The battery management device of claim 1 , further comprising a connection unit having a first end simultaneously connected to the second ends of the first switch and the second switch and a second end connected to the designated channel of the microcontroller.
4 . The battery management device of claim 1 , wherein the microcontroller is further configured to include a control terminal for outputting an on/off control command to the first switch and the second switch, and
wherein the control terminal outputs a control signal for turning on the first switch and turning off the second switch in a regular mode or an application operation mode.
5 . The battery management device of claim 4 , wherein the control terminal outputs a power input on/off control signal to a power input path of the first temperature measurement unit and the second temperature measurement unit to control power on/off of the first temperature measurement unit and the second temperature measurement unit.
6 . A control method of a battery management device, the method comprising:
a software update command input step of receiving a software update command from a battery management system (BMS);
a micro controller temperature measurement step of measuring a temperature of the microcontroller according to the software update command;
a boot mode switching determination step of determining whether to proceed in a boot mode according to the measured temperature of the microcontroller;
a boot mode starting step of starting the boot mode for performing a software update when the temperature of the microcontroller satisfies a predetermined condition in the boot mode switching determination step; and
a boot mode ending step of ending the boot mode when the software update is finished.
7 . The method of claim 6 , wherein in the boot mode switching determination step, the predetermined condition is whether the measured temperature of the microcontroller is less than or equal to a predetermined reference temperature.
8 . The method of claim 7 , wherein in the microcontroller temperature measurement step, the microcontroller blocks and controls a first path with the first temperature measurement unit that provides an application temperature measurement value through a designated channel of the microcontroller, and connects and controls a second path with the second temperature measurement unit to receive the measured temperature value of the microcontroller through the designated channel.
9 . The method of claim 6 , wherein if the temperature of the microcontroller does not satisfy the predetermined condition in the boot mode switching determination step, a standby mode is entered, and
wherein in the standby mode, the temperature of the microcontroller is measured for a predetermined time, and the determination of whether the measured temperature of the microcontroller satisfies the predetermined condition is repeated.