| Patent application number | Description | Published |
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| 20080228337 | METHOD FOR OPERATING AN ENGINE CONTROL MODULE UNDER LOW VOLTAGE CONDITIONS - A fault clearing system and method for an engine control system includes a plurality of processor modules to control and monitor the engine and set a plurality of faults. The plurality of processor modules includes an electronic throttle control (ETC) module to control and monitor a throttle of the engine, and a plurality of engine sensors and ETC sensors. An ETC diagnostic module monitors the ETC sensors and engine sensors, with the ETC diagnostic module setting a low voltage induced fault. The ETC diagnostic module will also enter one of a plurality of low voltage states in response to the low voltage induced fault. The ETC diagnostic module selectively controls the ETC module and selectively clears the faults in the ETC module and plurality of processor modules upon entry into one of the low voltage states. | 09-18-2008 |
| 20090030585 | CAM PHASING CONTROL SYSTEM FOR IMPROVING REGENERATION EFFICIENCY - A control system comprises a cam position calculation module that determines intake and exhaust cam positions during operation of an engine. The engine includes a regeneration and fuel cut-off (FCO) mode. A cam position adjustment module generates alternate intake and exhaust cam positions during the regeneration and FCO mode. A cam positioning module positions the intake and exhaust cams based on lower values of the intake and exhaust cam positions and the alternate intake and exhaust cam positions, respectively, during the regeneration and FCO mode. | 01-29-2009 |
| 20090204280 | METHOD AND SYSTEM FOR CONTROLLING A HYBRID VEHICLE - A hybrid controller for controlling a hybrid vehicle is set forth. The hybrid vehicle has an engine, an electric motor and an engine controller determining a crankshaft torque. The hybrid controller includes an optimization module determining an electric motor torque, determining an engine torque and communicating the engine torque from the hybrid controller to the engine controller. The hybrid controller also includes a motor control module controlling the electric motor based on the electric motor torque. | 08-13-2009 |
| 20090287378 | DRAG TORQUE REQUEST SECURITY DIAGNOSTIC SYSTEMS AND METHODS - An engine control system for a vehicle comprises a torque module and a drag request evaluation module. The torque module controls torque output of an engine based on a driver torque request and increases the torque output based on a wheel drag torque request generated based on a driven wheel speed. The drag request evaluation module disables the increase of the torque output when the driven wheel speed is greater than an undriven wheel speed by more than a predetermined speed. | 11-19-2009 |
| 20090319147 | CRUISE CONTROL AND ACTIVE FUEL MANAGEMENT (AFM) INTERACTION - A method and controller for operating cruise control in a vehicle having an engine with active fuel management (AFM) is provided. Adaptive scaler values can be determined based on a cylinder deactivation signal and calibrated scaler values. Cruise control commands can be calculated based on the adaptive scaler values. A speed of the vehicle can be controlled based on the cruise control commands. | 12-24-2009 |
| 20100057283 | COMMANDED AND ESTIMATED ENGINE TORQUE ADJUSTMENT - An engine control system comprises first and second integral modules, a summer module, and a torque adjustment module. The first integral module determines an engine speed (RPM) integral value based on a difference between a desired RPM and a measured RPM. The second integral module determines a torque integral value based on a difference between a desired torque output for an engine and an estimated torque of the engine. The summer module determines an RPM-torque integral value based on a difference between the RPM and torque integral values. The torque adjustment module determines a torque adjustment value based on the RPM-torque integral value and adjusts the desired torque output and the estimated torque based on the torque adjustment value. | 03-04-2010 |
| 20100298095 | VEHICLE FUEL CONTROL BASED ON VACUUM-ASSISTED BRAKE COMPONENT ACTUATION - A control method for an engine of a vehicle includes generating a brake value indicative of an operating condition of a brake system of the vehicle, and selectively adjusting one of a fuel control value of the engine and a fuel adjustment diagnostic value for the engine based on the brake value. In the method, a mass of fuel delivered to the engine is based on the fuel control value, and a diagnostic result indicative of lean operation of the engine is based on the fuel adjustment diagnostic value. The brake operating condition is selected from a group including a state of operation, a pedal displacement, an actuation period, a fluid operating pressure, and a power assist pressure. The fuel control value is provided. | 11-25-2010 |
| 20110060487 | NEGATIVE WHEEL SLIP CONTROL SYSTEMS AND METHODS - An engine control system comprises a derivative module and a slip remediation module. The derivative module determines a mathematical derivative of a driven wheel speed of a vehicle. The slip remediation module, when the mathematical derivative is more negative than a predetermined deceleration, at least one of disables regenerative braking being performed by one or more electric motors, increases an axle torque request, and unlocks a torque converter. | 03-10-2011 |
| 20110125384 | AIR PRESSURE CONTROL SYSTEMS AND METHODS FOR TURBOCHARGER SYSTEMS - A system for an engine with a turbocharger system includes a rate determination module, a limiting rate selection module, a throttle inlet absolute pressure (TIAP) calculation module, and a throttle control module. The rate determination module generates a pressure rate value based on a pressure difference between a current TIAP signal from a TIAP sensor and a previous TIAP signal. The limiting rate selection module selects a limiting rate based on the pressure rate value. The TIAP calculation module generates a calculated TIAP signal based on the limiting rate and the current TIAP signal. The throttle control module generates a throttle control signal based on the calculated TIAP signal and actuates an inlet throttle valve of the engine based on the throttle control signal. | 05-26-2011 |
