Acceleration based cruise control system
AssigneeGeneral Motors Corporation
InventorsTameem K. Assaf, Joseph R. Dulzo, Onassis Matthews
Life of this patent
Estimating the term…
Abstract
A cruise control system for a vehicle includes a throttle and a controller. The controller determines an open-loop speed compensation factor and calculates a closed-loop speed compensation factor. The controller determines a throttle area based on the open-loop speed compensation factor and the closed-loop speed compensation factor and operates the throttle based on the throttle area.
Claims36
A cruise control system for a vehicle, comprising:
- a throttle;
- a controller that monitors a cruise control mode of said vehicle, that determines an open-loop speed compensation factor, that calculates a closed-loop speed compensation factor based on a proportional term and an integral term, which is determined based on said cruise control mode, that determines a throttle area based on said open-loop speed compensation factor and said closed-loop speed compensation factor and that operates the throttle based on said throttle area.
A method of controlling a speed of a vehicle using a cruise control system, comprising:
- monitoring a cruise control mode of said vehicle;
- determining an open-loop speed compensation factor;
- calculating a closed-loop speed compensation factor based on a proportional term and an integral term, which is determined based on said cruise control mode;
- determining a throttle area based on said open-loop speed compensation factor and said closed-loop speed compensation factor;
- and
- operating a throttle based on said throttle area.
A method of controlling a speed of a vehicle using a cruise control system, comprising:
- monitoring a cruise control mode of said vehicle;
- determining an error factor based on a particular cruise control mode and at least one of a speed error and an acceleration error;
- calculating a closed-loop speed compensation factor based on said error factor;
- determining a throttle area based on said closed-loop speed compensation factor;
- and
- operating a throttle based on said throttle area.
Dependencies are inferred from the claim text.