Patent · US Active

Vehicle electrical circuit protection

US10479347B2 · kind B2 · utility

0Cited by
0References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 18, 2015
Grant dateNov 19, 2019
Priority date—
Expiry dateNov 18, 2035

Classification

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

Abstract

A method of protecting the high voltage DC bus of a hybrid vehicle as well as to a hybrid vehicle and controller configured to implement the method. The method involves detecting a plurality of requests to start the vehicle and, in response to at least the first request, precharging and energizing the high voltage DC bus without starting the engine. When one or more further requests are detected the engine is started and the high voltage DC bus is energized if each of the further requests is detected within a respective predetermined time interval from the preceding request. Starting the engine provides an audible feedback to the driver that the vehicle is ready for operation, thereby preventing overheating of the precharging circuit.

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