Methods and Systems for a Driveline Disconnect Clutch
First Claim
Patent Images
1. A method of operating a hybrid vehicle driveline, comprising:
- opening a closed torque converter clutch in response to an engine start request; and
adjusting a driveline integrated starter/generator (DISG) speed in response to a desired torque converter impeller speed.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, compensation for a driveline disconnect clutch is provided. The approaches may reduce driveline torque disturbances.
62 Citations
20 Claims
-
1. A method of operating a hybrid vehicle driveline, comprising:
-
opening a closed torque converter clutch in response to an engine start request; and adjusting a driveline integrated starter/generator (DISG) speed in response to a desired torque converter impeller speed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of operating a hybrid vehicle driveline, comprising:
-
opening a closed torque converter clutch in response to an engine start request; operating a driveline integrated starter/generator (DISG) in a speed control mode; adjusting DISG speed in response to a desired torque converter impeller speed; and starting an engine via closing a driveline disconnect clutch. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A hybrid vehicle driveline system, comprising:
-
a torque converter; a driveline integrated starter/generator (DISG); an engine; a driveline disconnect clutch positioned in a driveline between the engine and the DISG; and a controller including executable non-transitory instructions for operating the DISG in a speed control mode and providing a desired torque converter impeller torque via adjusting the DISG speed in response to a torque converter turbine speed and the desired torque converter impeller torque. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification