Adaptive real-time driver advisory control for a hybrid electric vehicle to achieve fuel economy improvement
First Claim
Patent Images
1. A method for controlling a vehicle having an accelerator pedal and a controller in communication with the accelerator pedal, comprising:
- generating a signal using a logic-based algorithm executed by the controller indicating an advisory accelerator pedal position based on a driver'"'"'s previous acceptance or rejection of previous driver advisory information in similar vehicle operating conditions;
calculating a forgetting factor value; and
adjusting the forgetting factor value such that the controller learns a driving style based on operating parameters during either a long operating period or a short operating period, wherein the controller applies a fast forgetting factor during a second short operating period of increased vehicle performance to reduce intrusiveness of advisory accelerator pedal positions during a second long operating period.
0 Assignments
0 Petitions
Accused Products
Abstract
A vehicle powertrain controller includes a fuzzy logic-based adaptive algorithm with a learning capability that estimates a driver'"'"'s long term driving preferences. An adaptive algorithm arbitrates competing requirements for good fuel economy, avoidance of intrusiveness and vehicle drivability. A driver'"'"'s acceptance or rejection of advisory information may be used to adapt subsequent advisory information to the driving style. Vehicle performance is maintained in accordance with a driver'"'"'s driving style.
-
Citations
14 Claims
-
1. A method for controlling a vehicle having an accelerator pedal and a controller in communication with the accelerator pedal, comprising:
-
generating a signal using a logic-based algorithm executed by the controller indicating an advisory accelerator pedal position based on a driver'"'"'s previous acceptance or rejection of previous driver advisory information in similar vehicle operating conditions; calculating a forgetting factor value; and adjusting the forgetting factor value such that the controller learns a driving style based on operating parameters during either a long operating period or a short operating period, wherein the controller applies a fast forgetting factor during a second short operating period of increased vehicle performance to reduce intrusiveness of advisory accelerator pedal positions during a second long operating period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for controlling a vehicle comprising:
adjusting a calculated forgetting factor value such that a controller in communication with an accelerator pedal learns a driving style based on operating parameters during either a long operating period or a short operating period, wherein the controller applies a fast forgetting factor during a second short operating period of increased vehicle performance to reduce intrusiveness of advisory accelerator pedal position signals during a second long operating period. - View Dependent Claims (11, 12, 13, 14)
Specification