Patent ID: 8977418
Filing Date: 2015-03-10
Classification: B60K,B60L,B60T,B60W,F02D,Y02T,Y10S

Abstract:
1. A parallel hybrid electric drivetrain including a control interface for implementing operator control over the drivetrain braking, the parallel hybrid electric drivetrain comprising: a drivetrain braking system including a compression brake and a regenerative brake an autoclutch for coupling the compression brake to the regenerative brake; a plurality of drive wheels; a transmission for coupling the drive wheels to the regenerative brake; a source for requested drivetrain braking effort; a control system responsive to requested drivetrain braking effort for allocating requested drivetrain braking effort between the regenerative brake and the compression brake including control over engagement of the autoclutch to allow torque from the drive wheels to be applied to the compression brake; the control system including a first operator actuated control for enabling operation of the drivetrain braking system and a second operator actuated control for selecting a target braking effort from the drivetrain braking system; the regenerative brake being one operational mode of an electrical machine; the compression brake being one operational mode of an internal combustion engine; and a graphic display interface for displaying the target braking effort.