Method and systems for an auxiliary power unit

US10919412B2 · kind B2 · utility

Assignee

• Transportation IP Holdings, LLC · US

Inventors

• Kaushik D. Sondur · Bengaluru, IN
• Giri Balu · Bengaluru, IN
• Sasikumar Vishwanathan Mudaliar · Bengaluru, IN
• Tharunendra Sekhar · Bengaluru, IN
• Jayaprakash Sabarad · Bengaluru, IN
• Rajeev Verma · Savanuru, IN

Key dates

• Filing date: Sep 24, 2018
• Grant date: Feb 16, 2021
• Expiry date: Oct 29, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T30/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Various methods and systems are provided for an auxiliary power unit of a vehicle. In one example, a system for a vehicle having a main power unit (MPU) coupled to an alternator and an auxiliary power unit (APU) configured to provide power to one or more hotel loads of the vehicle comprises: a controller with computer readable instructions stored in non-transitory memory executable to initiate operation of the APU in response to a drain load being applied to a battery of the vehicle that will deplete the battery to a state of charge (SOC) level that is less than a determined SOC threshold level in less time than a determined period, and the MPU is not in operation.