Inspection device and electronic control device
AssigneeDenso Corporation
InventorsRyuki Tomohiro, Makoto Tashiro
Life of this patent
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Abstract
An electronic control device including a control unit and switching elements is inspected. A slew rate of each of the switching elements is observed. A predetermined target slew rate range is stored. It is determined whether an observation result of the slew rate is disposed within or outside the predetermined target slew rate range. A slew rate adjust value is calculated based on a determination result of the observation result when the slew rate is disposed outside the predetermined target slew rate range. The slew rate adjust value is written in a storage unit of the control unit.
Claims8
An inspection device for inspecting an electronic control device including a control unit and a plurality of switching elements, the inspection device comprising:
- a slew rate observation unit that observes a slew rate of each of the plurality of switching elements;
- a target slew rate range storage unit that stores a predetermined target slew rate range;
- a determination unit that determines whether an observation result of the slew rate observation unit is disposed within or outside the predetermined target slew rate range;
- a slew rate adjust unit that calculates a slew rate adjust value based on a determination result of the determination unit when the slew rate is disposed outside the predetermined target slew rate range;
- and
- a write unit that writes the slew rate adjust value to a storage unit of the control unit that is referenced by the control unit;
- wherein the inspection device is external to and physically separate from the electronic control device.
An electronic control device comprising:
- a control unit;
- a plurality of switching elements;
- a storage unit of the control unit into which a slew rate adjust value is written in advance by an inspection device, wherein the inspection device is external to and separate from the electronic control device;
- and
- a plurality of switch control units provided corresponding to the plurality of switching elements, wherein:
- each of the plurality of switch control units controls one of the plurality of switching elements based on slew rate adjust value stored in the storage unit of the control unit.
Dependencies are inferred from the claim text.