METHODS AND SYSTEMS FOR ADJUSTING DRIVELINE OPERATION DURING AN ACCELERATOR TIP-OUT

摘要

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine may be operated at an idle speed while a driveline disconnect clutch separating the engine from a driveline is open in response to a reduction in driver demand torque. Engine torque may be applied to the driveline by simply closing the driveline disconnect clutch.

主权项

1. A driveline operating method, comprising:
providing torque from an engine to a driveline coupled to wheels via at least a transmission and torque converter; operating the engine at an idle speed and decoupling the engine from the driveline in response to a reduced driver demand torque; and providing a constant vehicle deceleration rate during the reduced driver demand torque.