FUEL ECONOMY INDICATOR LAMP CONTROL SYSTEM
First Claim
Patent Images
1. A fuel economy (FE) indicator lamp regulation system for a hybrid electric vehicle having an internal combustion engine, comprising:
- an FE indicator lamp;
a first module that calculates an instantaneous FE of said hybrid electric vehicle;
a second module that determines a velocity of said hybrid electric vehicle; and
a third module that switches said FE indicator lamp between an on 10 state and an off state based on said instantaneous FE and said vehicle speed.
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Abstract
A fuel economy (FE) indicator lamp regulation system for a hybrid electric vehicle having an internal combustion engine includes an FE indicator lamp, a first module that calculates an instantaneous FE of the hybrid electric vehicle and a second module that determines a velocity of the hybrid electric vehicle. A third module switches the FE indicator lamp between an on state and an off state based on the instantaneous FE and the vehicle speed.
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Citations
22 Claims
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1. A fuel economy (FE) indicator lamp regulation system for a hybrid electric vehicle having an internal combustion engine, comprising:
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an FE indicator lamp; a first module that calculates an instantaneous FE of said hybrid electric vehicle; a second module that determines a velocity of said hybrid electric vehicle; and a third module that switches said FE indicator lamp between an on 10 state and an off state based on said instantaneous FE and said vehicle speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of regulating illumination of a fuel economy (FE) indicator lamp between an on state and an off state in a hybrid electric vehicle having an internal combustion engine, comprising:
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calculating an instantaneous FE of said hybrid electric vehicle; determining a velocity of said hybrid electric vehicle; and switching said FE indicator lamp between said on state and said off state based on said instantaneous FE and said vehicle speed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of regulating illumination of a fuel economy (FE) indicator lamp between an on state and an off state in a hybrid electric vehicle having an internal combustion engine, comprising:
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calculating an instantaneous FE of said hybrid electric vehicle; determining a velocity of said hybrid electric vehicle; switching said FE indicator lamp between said on state and said off state based on said instantaneous FE and said vehicle speed, wherein said FE indicator lamp is switched to said off state when said velocity is outside of a velocity range that is defined between a minimum velocity threshold and a maximum velocity threshold; initiating a hybrid engine off mode; and switching said FE indicator lamp to said on state when in said hybrid engine off mode for a threshold time period. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification