METHODS AND SYSTEMS FOR RESTARTING AN ENGINE
First Claim
Patent Images
1. A method for operating a hybrid driveline, comprising:
- in response to an increase in driver demand torque, supplying a portion of the increased driver demand torque before starting the engine;
starting the engine; and
supplying a remainder of the driver demand torque after starting the engine in response to speed of the engine being within a predetermined speed of a speed of a motor.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, torque output of a motor is controlled to include a reserve torque for starting an engine that may be selectively coupled to the motor. Additionally, the motor torque compensates for disconnect clutch closing.
32 Citations
20 Claims
-
1. A method for operating a hybrid driveline, comprising:
-
in response to an increase in driver demand torque, supplying a portion of the increased driver demand torque before starting the engine; starting the engine; and supplying a remainder of the driver demand torque after starting the engine in response to speed of the engine being within a predetermined speed of a speed of a motor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for operating a hybrid driveline, comprising:
-
in response an increase in driver demand torque, supplying torque to the hybrid driveline up to a first torque limit, the first torque limit based on available torque from a motor minus engine starting torque; starting an engine via the motor; and increasing the first torque limit in response to a speed of the engine being within a predetermined speed of a speed of the motor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A hybrid vehicle system, comprising:
-
an engine; a motor selectively coupled to the engine via a driveline disconnect clutch; and a controller including non-transitory instructions executable to start the engine in response to a desired driver demand torque being within a threshold torque of a first torque limit, the first torque limit based on available torque from the motor minus engine starting torque. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification