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US 2019/0061528 A1Published application
Automotive vehicle with cruise control that enhances fuel economy
AssigneeFca US LLC
InventorsJames J. Daley, Joseph M. Dekar, Roger C. Sager, Brian L. Terwedo, Gregg T. Black
Life of this patent
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Abstract
In accordance with an aspect of the present disclosure, cruise control of an automotive vehicle in a fuel economy cruise control mode controls vehicle speed to be within a fuel economy speed band about a cruise control set speed so that instantaneous fuel economy is at least equal to average fuel economy.
Claims4
A method of controlling cruise control in an automotive vehicle having an engine and an electronic control unit, comprising:
- determining with the electronic control unit whether vehicle speed is within a fuel economy speed band about a cruise control set speed and controlling cruise control with the electronic control unit in a fuel economy cruise control mode when vehicle speed is within the fuel economy speed band and controlling cruise control with the electronic control unit in a regular cruise control mode when vehicle speed is outside the fuel economy speed band to bring the vehicle speed to within the fuel economy speed band and then transitioning to controlling cruise control with the electronic control unit in the fuel economy mode when the vehicle speed is within the fuel economy speed band;
- and
- when controlling cruise control in the fuel economy mode, controlling the engine with the electronic control unit so that an instant fuel economy of the vehicle is at least an average fuel economy of the vehicle.
An automotive vehicle, comprising:
- an engine and an electronic control unit;
- the electronic control unit configured with cruise control having a regular mode and a fuel economy mode;
- the electronic control unit configured to determine whether vehicle speed is within a fuel economy speed band about a cruise control set speed and controlling cruise control in the fuel economy mode when vehicle speed is within the fuel economy speed band and controlling cruise control in the regular cruise control mode when vehicle speed is outside the fuel economy speed band to bring the vehicle speed to within the fuel economy speed band and then transitioning to fuel economy mode when the vehicle speed is within the fuel economy speed band;
- and
- when controlling cruise control in the fuel economy mode, the electronic control unit is configured to control the engine so that an instant fuel economy of the vehicle is at least an average fuel economy of the vehicle.
2 more elements
Dependencies are inferred from the claim text.