초록 ▼

A control system/method for controlling engine (12) output torque in a vehicular powertrain system (10) including an electronically controlled engine and a torque load limited drivetrain system (11) is provided. The control will sense values of a control parameter (GR, OS) indicative of potential ov

A control system/method for controlling engine (12) output torque in a vehicular powertrain system (10) including an electronically controlled engine and a torque load limited drivetrain system (11) is provided. The control will sense values of a control parameter (GR, OS) indicative of potential overloading of the drivetrain at maximum engine output torque and will cause engine output torque to be limited to a value less than the maximum value thereof.

대표청구항 ▼

[ We claim:] [1.] A method for controlling a vehicular powertrain system (10) comprising a fuel-controlled engine (12) drivingly connected to a vehicular drivetrain system (11) including a multiple-ratio, change-gear transmission (14) and a drive axle (19), said engine having a maximum output torque

[ We claim:] [1.] A method for controlling a vehicular powertrain system (10) comprising a fuel-controlled engine (12) drivingly connected to a vehicular drivetrain system (11) including a multiple-ratio, change-gear transmission (14) and a drive axle (19), said engine having a maximum output torque and an engine controller responsive to command signals to control fueling of the engine and, in at least one mode of operation, effective to limit engine output torque and said drivetrain having a predetermined maximum torque loading capacity, said drivetrain configured such that an expected torque loading on said drivetrain under a predetermined set of drivetrain high torque loading operating conditions and maximum engine output torque will exceed said predetermined maximum torque loading capacity, said method comprising