摘要:
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.
摘要:
An engine control system includes a status determination module that determines states of first and second throttle position sensors (TPSs), wherein a fault state includes when one of the first and second TPSs is one of outside of a predetermined range and out of correlation with the other of the first and second TPSs, for greater than a first predetermined period. A throttle actuation module opens a throttle when an engine manifold absolute pressure (MAP) is less than a predetermined MAP threshold, at least one of the first and second TPSs is in the fault state, and the other one of the first and second TPSs is within a second predetermined period from transitioning to the fault state.
摘要:
An engine control system includes a status determination module that determines states of first and second throttle position sensors (TPSs), wherein a fault state includes when one of the first and second TPSs is one of outside of a predetermined range and out of correlation with the other of the first and second TPSs, for greater than a first predetermined period. A throttle actuation module opens a throttle when an engine manifold absolute pressure (MAP) is less than a predetermined MAP threshold, at least one of the first and second TPSs is in the fault state, and the other one of the first and second TPSs is within a second predetermined period from transitioning to the fault state.
摘要:
A vehicle speed module includes a speed arbitration module that receives at least two of a wheel speed, a transmission output speed (TOS), and an electric motor speed (EMS), and that determines a vehicle speed based on a comparison of the at least two of the wheel speed, the TOS, and the EMS. A speed diagnostic module selectively diagnoses a fault in one of a wheel speed sensor, a TOS sensor, and an EMS sensor based on the comparison.
摘要:
An engine control system of a vehicle comprises a first module and a cylinder deactivation module. The first module selectively adjusts torque output by an engine based on a vehicle torque request that is greater than a driver torque request. The cylinder deactivation module selectively deactivates a cylinder of the engine when a difference between an estimated maximum torque output of the engine and the driver torque request is greater than a predetermined maximum torque.
摘要:
An engine control system that regulates operating of an engine of a motor vehicle includes a first module that determines whether a throttle of the motor vehicle is closed and a second module that determines whether the engine is idling while a cruise control is active. A third module selectively inhibits an RPM-based idle speed control of the engine if the throttle is closed and the engine is idling while the cruise control is active.
摘要:
An air-per-cylinder (APC) security system for a vehicle comprises an APC determination module, an APC threshold determination module, and an APC diagnostic module. The APC determination module determines first and second APC values for first and second cylinders of an engine, respectively, based on mass airflow (MAF) into the engine. The APC threshold determination module determines an APC threshold based on the first APC value and a spark timing for the first cylinder. The APC diagnostic module selectively diagnoses a fault in the APC determination module when the second APC value is greater than a sum of the first APC value and the APC threshold.
摘要:
A system includes an out of correlation (OOC) detection module that detects an OOC error between a first throttle position sensor (TPS) and a second TPS. An out of range (OOR) detection module that detects first and second OOR errors for the first and second TPS, respectively. An OOC counter sets an OOC error when an OOC count is greater than or equal to a first OOC value. An OOR counter sets first and second OOR errors when first and second OOR counts, respectively, are greater than or equal to a second OOR value that is less than the first OOC value. A control module increments the counters when the respective errors occur and sets at least one of the first and second OOR counts equal to the OOC count when at least one of the first and second OOR errors occur after the OOC error.
摘要:
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.
摘要:
A control system for a vehicle comprises a throttle control module and a diagnostic module. The throttle control module controls a position of a throttle of the vehicle and compensates for changes in effective opening area of the throttle due to coking. The diagnostic module reports a coking value to a user based upon an amount of compensation performed by the throttle control module. A method comprises controlling a position of a throttle of a vehicle; compensating for changes in effective opening area of the throttle due to coking; and reporting a coking value to a user based upon an amount of compensation performed.