Patent · US Active

Resilient high-voltage interlock loop

US10274532B1 · kind B1 · utility

12Cited by

4References

20Claims

0Family size

Assignee

NIO USA, INC. · US

Inventors

Alexander J. Smith · White Lake, US
Yadunandana Yellambalase · Foster City, US
Stephen C. Holland · San Jose, US
Miaosen Shen · Fremont, US
Xiaodong Liu · Beijing, CN

Key dates

Filing date	Oct 30, 2017
Grant date	Apr 30, 2019
Priority date	—
Expiry date	Oct 30, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Systems of an electrical vehicle and the operations thereof are provided. High-voltage interlock (HVIL) determines if a high-voltage system, such as a power source (e.g., vehicle battery), a load (e.g., vehicle motor), and conductors therebetween, have been properly connected. If not, battery contactor is not allowed to be closed or, if already closed, opened. A redundant HVIL system is provided to mitigate the false positives associated with an HVIL component failure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.