Patent · US Active

Method for controlling a refilling motor that drives a hydraulic pump

US9556865B2 · kind B2 · utility

3Cited by
10References
9Claims
0Family size

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Inventor

Key dates

Filing dateDec 20, 2011
Grant dateJan 31, 2017
Priority date
Expiry dateMar 23, 2034

Classification

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

Abstract

Method for controlling a refilling motor (2) that drives a hydraulic pump (4) that refills at least one pressure accumulator (8), this accumulator thereafter delivering the hydraulic pressure (P) to a hydraulic traction machine (20) of a hybrid vehicle, characterized in that it takes account both of the rate of discharge of the pressure accumulator (8) and of the time to start (Δi) the refilling motor (2) so as to manage this start in such a way that this accumulator more or less reaches its minimum operating pressure level (PI) at the end of this start (t1).

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