This current control device is provided with: component temperature estimation units (61a1-61g) that estimate the temperature of each of a plurality of electronic components included in a current control circuit on the basis of the value of current flowing through each of the plurality of electronic components included in the current control circuit and the detected temperature detected by a temperature detection element disposed in the vicinity of the current control circuit; estimating a component temperature, which is a temperature of the electronic component, for each of the plurality of electronic components; a reduction coefficient setting unit (63a-63 g) that sets a plurality of different reduction coefficients for each of a plurality of different component temperatures included in the component temperatures estimated for each of the plurality of electronic components; a selection unit (64) that selects any one of the reduction coefficients for each of the plurality of electronic components; and a current limiting unit (51) that limits the output current output from the current control circuit to the load on the basis of the selected reduction coefficient.
电流控制装置具备:部件温度推定部(61a1~61g),其基于流过电流控制电路所包含的多个电子部件的每个电子部件的电流值以及由配置于电流控制电路附近的温度检测元件检测出的检测温度,针对多个电子部件中的每个电子部件推定出作为电子部件的温度的部件温度;降低系数设定部(63a~63g),其针对按照多个电子部件的每个电子部件推定出的部件温度所包含的多个不同的部件温度,分别设定多个不同的降低系数;选择部(64),其选择多个电子部件的每个电子部件的降低系数中的任一个降低系数;以及电流限制部(51),其基于所选择出的降低系数,限制从电流控制电路向负载输出的输出电流。
Current control device, motor control device, and electric power steering device
电流控制装置、马达控制装置以及电动助力转向装置
2024-10-22
Patent
Electronic Resource
Chinese
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