公开(公告)号：US12152943B2

公开(公告)日：2024-11-26

申请号：US16967928

申请日：2019-02-05

Applicant: RENAULT s.a.s.

Inventor： Natalie Rat ,  Abdeslam Ait El Bacha ,  Alexandre Dochter

IPC: G01K7/16 ,  G01K3/00

Abstract: A device and method for detecting when at least one heat source exceeds a temperature threshold. The device includes a component having an electrical resistance that varies according to the operating temperature of the component, and an electrical power source suitable for supplying an electrical current to the component. The component is configured to be thermally coupled to the heat source, such that the operating temperature varies according to the temperature of the heat source and the heat released in the component by the Joule effect, the variable electrical resistance having a high value if the operating temperature is greater than a triggering threshold, the electrical power source being configured to generate the electrical current such that the operating temperature is greater than or equal to the triggering threshold once the temperature of the heat source is greater than or equal to the temperature threshold.