Patent application number | Description | Published |
20090018733 | RPM TO TORQUE TRANSITION CONTROL - An engine control module comprises a torque control module, an engine speed (RPM) control module, and an actuator module. The torque control module determines a first desired torque based on a requested torque. The RPM control module selectively determines a second desired torque based on a desired RPM. The torque control module determines the first desired torque further based on the second desired torque when the engine control module is transitioning from an RPM control mode to a torque control mode. The RPM control module determines the second desired torque further based on the first desired torque when the engine control module is transitioning from the torque control mode to the RPM control mode. The actuator module controls an actuator of an engine based on the first and second desired torques. | 01-15-2009 |
20090056672 | AIRFLOW-BASED CRANK THROTTLE CONTROL IN A TORQUE-BASED SYSTEM - A method of torque-based control for an internal combustion engine may include determining a desired airflow rate into an intake manifold of the internal combustion engine during an engine start condition, determining a torque limit for a torque-based engine control module based on the desired airflow rate, and regulating engine torque based on the determined torque limit. | 03-05-2009 |
20090118965 | RESERVE TORQUE MANAGEMENT FOR ENGINE SPEED CONTROL - An engine control module comprises a base reserve module, a power steering reserve module, a reserve torque module, first and second engine actuator modules, and an engine speed control module. The base reserve module determines a base reserve torque. The power steering reserve module determines a power steering reserve torque. The reserve torque module determines a first reserve torque based on the base reserve torque, the power steering reserve torque, and at least one of an oil temperature of an engine and a barometric pressure. The first and second engine actuator modules control first and second actuators of the engine, respectively. The engine speed control module instructs the first engine actuator module to produce a first torque output from the engine and instructs the second engine actuator module to produce a second torque output from the engine. | 05-07-2009 |
20090118966 | METHOD OF TORQUE INTEGRAL CONTROL LEARNING AND INITIALIZATION - A torque control system comprises a torque correction factor module, a RPM-torque transition module, and a selection module. The torque correction factor module determines a first torque correction factor and a second torque correction factor. The RPM-torque transition module stores the first torque correction factor. The selection module selectively outputs one of the first torque correction factor and the second torque correction factor based on a control mode of the torque control system. | 05-07-2009 |
20090173314 | SPEED CONTROL IN A TORQUE-BASED SYSTEM - An engine control system includes a power module, an air flow module, a torque estimation module, and an air control module. The power module determines a power-based torque based on a desired engine speed. The air flow module determines an air flow value based on the power-based torque. The torque estimation module estimates a desired torque based on the air flow value. The air control module selectively determines a throttle area based on the desired torque. A throttle valve is actuated based on the throttle area. | 07-09-2009 |
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 |
20090270225 | AIRFLOW BASED IDLE SPEED CONTROL POWER SECURITY - An engine control system comprises a torque determination module, a limit determination module, a torque limit module, and a torque control module. The torque determination module determines a desired torque based on a desired engine speed. The limit determination module determines a torque limit based on one of an engine oil temperature and a transmission fluid temperature. The torque limit module determines a final torque based on the desired torque and the torque limit. The torque control module selectively determines a throttle area based on the final torque. A throttle valve is actuated based on the throttle area. | 10-29-2009 |
20090276128 | COORIDNATED TORQUE CONTROL OPERATION WITH DE-ENERGIZED THROTTLE - An engine control system comprises an air control module and a spark control module. The air control module controls a throttle valve based on a first desired torque when the throttle valve is in an operable state. The spark control module controls spark advance based on the first desired torque and a second desired torque when the throttle valve is in a fault state. The throttle valve is maintained in a predetermined fault position when in the fault state. | 11-05-2009 |
20090276130 | AIR CONDITIONING TORQUE COMPENSATION ENERGY MATCHING INERTIA TRANSFER - An engine control system comprises a torque control module, an air conditioning (A/C) load comparison module, and an A/C load compensation module. The torque control module controls an engine to produce a first torque request based on a first torque maintains a current speed of the engine. The A/C load comparison module compares a transient load to a difference between a torque available to the engine and the first torque request. The A/C load compensation module selectively increases the first torque request prior to a clutch engagement based on the comparison. | 11-05-2009 |
20090276137 | METHOD TO INCLUDE FAST TORQUE ACTUATORS IN THE DRIVER PEDAL SCALING FOR CONVENTIONAL POWERTRAINS - An engine control system comprises a pedal torque determination module, a driver interpretation module, and an actuation module. The pedal torque determination module determines a zero pedal torque based on a desired engine torque at a zero accelerator pedal position and a minimum torque limit for an engine system. The driver interpretation module determines a driver pedal torque based on the zero pedal torque and an accelerator pedal position. The actuation module controls at least one of a throttle area, spark timing, and a fuel command based on the driver pedal torque. | 11-05-2009 |
20100075802 | COLD START EMISSION REDUCTION STRATEGY FOR COORDINATED TORQUE CONTROL SYSTEMS - A cold-start control system for an internal combustion engine includes a heat estimation module, a torque request module and a propulsion torque determination module. The heat estimation module determines an exhaust system temperature and estimates heat required to heat an exhaust system to a predetermined temperature. The torque request module generates a torque request based on the estimated heat. The propulsion torque determination module determines a desired engine torque based on the torque request. | 03-25-2010 |
20100082220 | TORQUE BASED CLUTCH FUEL CUT OFF - An engine control system comprises a clutch cut off enable module and a torque control module. The clutch cut off enable module generates an enable signal based on a clutch engagement signal and an accelerator pedal signal. The torque control module reduces a spark advance of an engine to a minimum value and disables fueling of cylinders of the engine based on the enable signal. The minimum value is a minimum allowed spark advance for current engine airflow. | 04-01-2010 |
20100280738 | METHOD AND SYSTEM FOR CONTROLLING TORQUE DURING A VEHICLE LAUNCH CONDITION - A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold. | 11-04-2010 |