Method for controlling an automated geared transmission
First Claim
1. A method of controlling an automated stepped transmission that disposed in a drive train of a motor vehicle in conjunction with a turbo-charged internal combustion engine, with start-up and shifting procedures being controlled depending on a response behavior of the internal combustion engine, the method comprising the steps of:
- taking a current response behavior of the internal combustion engine, in each case, from an engine dynamic characteristic map, in which an immediately available maximum torque (Mmax) of the internal combustion engine is stored as a function of current engine torque (MM) and current engine speed (nM;
Mmax=f(MM, nM)); and
defining the engine dynamic characteristic map by a steady-state full load torque characteristic curve (MVL(nM)), a zero torque curve (MM=0), an idle speed (nidle) and a cut-off speed (nlim) of the internal combustion engine.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of controlling an automated stepped transmission disposed in a drive train of a motor vehicle in conjunction with a turbo-charged internal combustion engine. In which the control of start-up and shifting procedures depends on the response behavior of the internal combustion engine. In order to enable control of the start-up and shifting processes with considerably lower coordination effort, the actual response behavior of the internal combustion engine is taken from an engine dynamics characteristic map in which the immediately available maximum torque (Mmax) of the internal combustion engine is stored as a function of the current engine torque (MM) and the current engine speed (nM, thus (Mmax=f(MM, nM)).
13 Citations
17 Claims
-
1. A method of controlling an automated stepped transmission that disposed in a drive train of a motor vehicle in conjunction with a turbo-charged internal combustion engine, with start-up and shifting procedures being controlled depending on a response behavior of the internal combustion engine, the method comprising the steps of:
-
taking a current response behavior of the internal combustion engine, in each case, from an engine dynamic characteristic map, in which an immediately available maximum torque (Mmax) of the internal combustion engine is stored as a function of current engine torque (MM) and current engine speed (nM;
Mmax=f(MM, nM)); anddefining the engine dynamic characteristic map by a steady-state full load torque characteristic curve (MVL(nM)), a zero torque curve (MM=0), an idle speed (nidle) and a cut-off speed (nlim) of the internal combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification