Methods and systems for a four wheel drive vehicle driveline
First Claim
Patent Images
1. A method of adjusting operation of a hybrid vehicle, comprising:
- automatically restarting an engine in response to a first condition while the hybrid vehicle is operating in a four wheel drive low gear range; and
automatically restarting the engine in response to a second condition other than the first condition while the hybrid vehicle is not operating in the four wheel drive low gear range.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operation may be adjusted in response to operating the hybrid vehicle in a four wheel drivel low gear range. The approaches may improve vehicle drivability and reduce driveline degradation.
95 Citations
17 Claims
-
1. A method of adjusting operation of a hybrid vehicle, comprising:
-
automatically restarting an engine in response to a first condition while the hybrid vehicle is operating in a four wheel drive low gear range; and automatically restarting the engine in response to a second condition other than the first condition while the hybrid vehicle is not operating in the four wheel drive low gear range. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of adjusting operation of a hybrid vehicle, comprising:
-
automatically restarting an engine in response to release of a vehicle brake while the hybrid vehicle is operating in a four wheel drive low gear range; and commanding a torque to a torque converter impeller while the hybrid vehicle is operated in the four wheel drive low gear range that is different than a torque supplied to the torque converter impeller during similar operating conditions while the hybrid vehicle is operated in a two wheel drive mode. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method of adjusting operation of a hybrid vehicle, comprising:
automatically restarting a stopped engine in response to a driver selecting a four wheel drive range. - View Dependent Claims (16, 17)
Specification