| Patent application number | Description | Published |
|---|
| 20080237517 | Method and system for controlling a valve device - A system and method are disclosed for controlling the positioning of a movable member of a valve device by an electric actuator. A model is used to generate estimates for the position and velocity of the movable valve member that result from an actuator control signal being applied to drive the electric actuator. The actuator control signal comprises a feedback control signal combined with a feedforward control signal. The feedback control signal is generated based upon a difference between the estimated and actual positions of the movable valve member, while the feedforward control signal is generated based upon the desired position, the estimated position, and the estimated velocity. The feedforward signal is adjusted to cause the estimated velocity to approximately follow a defined maximum deceleration velocity trajectory as the estimated position of the movable valve member moves to the desired position. An exemplary embodiment is presented where the principles of the invention are applied to the control of an electronic throttle valve. | 10-02-2008 |
| 20090259354 | ENERGY ECONOMY MODE USING PREVIEW INFORMATION - A method for improving energy efficient operation of a vehicle includes monitoring vehicle operating characteristics, modeling operation of the vehicle by utilizing the vehicle operating characteristics to estimate energy consumption rates of the vehicle across an allowable vehicle operating range, and generating a control output to the vehicle on the basis of the energy consumption rates. | 10-15-2009 |
| 20090312889 | VEHICLE CONTROL USING STOCHASTIC INFORMATION - A method for operating a vehicle includes estimating expected states and probable ranges for influence factors associated with stochastic parameters over a time horizon. A preferred control state and a candidate control state for an objective function are determined. The objective function is controlled using the preferred control state for the objective function over the time horizon. | 12-17-2009 |
| 20100042277 | METHOD OF MANAGING POWER FLOW IN A VEHICLE - A vehicle includes a powertrain system and a traffic sensing system. Power flow in the vehicle is managed by determining a present location and a trajectory of the vehicle, and determining traffic level information based on the present location and trajectory. A speed profile for the vehicle is predicted based upon the traffic level information of the vehicle and the powertrain is operated to manage power flow in the vehicle based upon on the predicted speed profile. | 02-18-2010 |
| 20100042304 | METHOD OF MANAGING POWER FLOW IN A VEHICLE - A vehicle includes a powertrain system having a non-combustion tractive power generating device and a positioning system. A method of managing power flow in the vehicle includes determining a present location and a trajectory of the vehicle, and determining a probability of vehicle braking at a predetermined location within the trajectory of the vehicle. The non-combustion tractive power generating device is operated to manage power flow in the vehicle based upon the probability of vehicle braking at the predetermined location. | 02-18-2010 |
| 20110040471 | ROAD GRADE COORDINATED ENGINE CONTROL SYSTEMS - An engine control system of a vehicle includes a road grade module and a predictive control module. The road grade module detects a grade of a road that is ahead of the vehicle. The predictive control module detects that a first cylinder of an engine of the vehicle is deactivated while a second cylinder of the engine is activated. The predictive control module activates the first cylinder based on the grade. | 02-17-2011 |
