Controller for the drive train of a motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorsFriedrich Graf, Frank Lohrenz, Ernst Nock
Life of this patent
Estimating the term…
Abstract
A drive train controller of a motor vehicle has an engine controller for controlling the variables that influence the torque of the engine. The drive train controller also includes a transmission controller for controlling the gear shift operations of the automatic transmission. The transmission controller includes a detection circuit for determining the respective driving situation of the motor vehicle. The transmission controller changes the transmission ratio in a manner that is adaptively matched to the dynamics of the determined driving situation and/or the driver characteristics.
Claims12
A drive train controller of a motor vehicle having an automatic transmission and an engine providing a torque, the drive train controller comprising:
- an engine controller for controlling variables that influence the torque of the engine;
- a transmission controller for controlling gear shifting operations of the automatic transmission, said transmission controller exchanging data with said engine controller, the data enabling the gear shifting operations to be performed comfortably;
- and
- a gear shift change controller for correcting a requested engine torque during a gear shifting operation;
- said transmission controller including a detection circuit for determining a driving situation of the motor vehicle;
- and
- said transmission controller adaptively matching changes in a transmission ratio to dynamics of a feature selected from the group consisting of the driving situation that has been determined and driver characteristics that have been determined.
Dependencies are inferred from the claim text.