Motor control apparatus
AssigneeDenso Corporation
InventorRyuta TAKEUCHI
Life of this patent
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Abstract
A motor control apparatus includes a control unit that controls drive of each of a plurality of motors on the basis of electric power supply from a battery. The control unit includes a heat generation management unit that controls the drive of each of the plurality of motors so that a temperature of elements constituting the control unit does not exceed a heat resistance upper limit.
Claims9
A motor control apparatus comprising a control unit that controls drive of each of a plurality of motors on the basis of electric power supply from an electric power source,
- wherein:
- the control unit includes a heat generation management unit that controls the drive of each of the plurality of motors so that a temperature of elements constituting the control unit does not exceed a heat resistance upper limit;
- the control unit detects lock of the motors based on drive information of the motors;
- and
- when the lock of two or more of the motors has been detected, the heat generation management unit limits a lock time that is a drive time of these motors in a locked state.
A motor control apparatus comprising a control unit that controls drive of each of a plurality of motors on the basis of electric power supply from an electric power source,
- wherein:
- the control unit includes a heat generation management unit that controls the drive of each of the plurality of motors so that a temperature of elements constituting the control unit does not exceed a heat resistance upper limit;
- the heat generation management unit calculates a heat generation degree in each of the motors;
- and
- when a total value of the heat generation degrees in the motors has become greater than or equal to a preset allowable value, the heat generation management unit performs an output limitation of lowering a drive voltage applied to at least one of the motors which is being driven.
A motor control apparatus comprising a control unit that controls drive of each of a plurality of motors on the basis of electric power supply from an electric power source,
- wherein:
- the control unit includes a heat generation management unit that controls the drive of each of the plurality of motors so that a temperature of elements constituting the control unit does not exceed a heat resistance upper limit;
- the heat generation management unit calculates a heat generation degree in each of the motors;
- when a drive command for one of the motors is detected with a total value of the heat generation degrees in the motors being greater than or equal to a preset threshold value, the heat generation management unit suspends the drive command;
- and
- when the total value has become less than the threshold value, the heat generation management unit executes the suspended drive command.
A motor control apparatus comprising a control unit that controls drive of each of a plurality of motors on the basis of electric power supply from an electric power source,
- wherein:
- the control unit includes a heat generation management unit that controls the drive of each of the plurality of motors so that a temperature of elements constituting the control unit does not exceed a heat resistance upper limit;
- the control unit detects lock of the motors based on drive information of the motors;
- and
- when a drive command for one of the motors is detected during the drive of another one of the motors which is in a locked state, the control unit cancels the drive command.
Dependencies are inferred from the claim text.