METHOD AND SYSTEM FOR ENGINE TORQUE CONTROL
First Claim
Patent Images
1. 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 airflow control based on the engine torque data set.
1 Assignment
0 Petitions
Accused Products
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.
14 Citations
19 Claims
-
1. 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 airflow control based on the engine torque data set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. 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 airflow control based on the data set. - View Dependent Claims (15, 16, 17)
-
18. A vehicle system, comprising:
-
a turbocharged 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 turbocharger boost based on the engine torque data set. - View Dependent Claims (19)
-
Specification