Patent · US Active

Electric vehicle control device

US7973505B2 · kind B2 · utility

3Cited by
5References
2Claims
0Family size

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Key dates

Filing dateJan 31, 2008
Grant dateJul 5, 2011
Priority date
Expiry dateSep 19, 2028

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/72
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

When an electric vehicle outputs a torque instruction, firstly, a request torque is acquired and a judged whether the acquired request torque is positive or negative (S10) Regardless of the sign of the request torque, it is judged whether the eco-switch is ON (S12, S14) If the request torque has a positive sign and the eco-switch is OFF, a map A is selected (S20). If the eco-switch is ON, a map B which limits the maximum torque to a low value for the map A is selected (S22). If the request torque has a negative sign, a map C is selected regardless of the eco-switch ON/OFF state and the maximum torque is not limited (S24).

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