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US 8,924,124 B2Granted
Method and system for engine torque control
AssigneeFord Global Technologies, LLC
InventorsJohn Anthony Lockwood, Jeffrey Allen Doering
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for improving vehicle torque control accuracy. Data points of an engine torque data set are adjusted en masse by an on-board vehicle controller while also being adjusted individually by an off-board controller. By adjusting engine operation based on a torque data set that is updated by each of the on-board and off-board controllers, engine torque errors can be reliably determined and compensated for.
Claims21
A method for controlling vehicle torque, comprising:
- adjusting each data point of an engine torque data set with a slope and offset modifier from engine torque data on-board the vehicle;
- adjusting individual data points of the engine torque data set from engine torque data off-board the vehicle;
- and
- adjusting an engine operation based on the engine torque data set.
1 more element
A method, comprising:
- during vehicle operation over a vehicle life:
- scaling all data points of an engine torque data set on an on-board vehicle control system based on on-board sensed and processed data;
- and
- differentially adjusting a plurality of single data points of the engine torque data set on the vehicle control system based on on-board sensed and processed data and off-board processed data;
- and
- adjusting engine operation based on the data set.
3 more elements
A vehicle system, comprising:
- an engine;
- one or more engine torque indicators;
- and an on-board control system communicatively coupled to an off-board control system, the on-board control system including computer readable instructions for:
- processing raw data received from the one or more engine torque indicators;
- scaling every data point of an engine torque data set stored on the on-board control system based on the processing;
- uploading the raw data to the off-board control system for processing;
- downloading processed data from the off-board control system;
- differentially adjusting single data points of the engine torque data set based on downloaded data;
- and
- adjusting engine operation based on the engine torque data set.
7 more elements
Dependencies are inferred from the claim text.