公开(公告)号：US20250065863A1

公开(公告)日：2025-02-27

申请号：US18722749

申请日：2022-10-14

Applicant: Cummins Inc.

Inventor： Dat D. Le ,  Kenneth Follen ,  Jaroslaw Leonarski ,  Carlos Lana ,  David Langenderfer

IPC: B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26

Abstract: Powertrains of hybrid electric vehicles, control systems for controlling the powertrains, and methods for controlling the powertrains are disclosed. The powertrain includes an engine, a motor/generator, a battery and a DC bus. The control system is configured to: operate the motor/generator in a first mode when the battery is connected to the DC bus; operate the motor/generator in a second mode when the battery is disconnected from the DC bus, wherein the second mode is a voltage control mode in which the motor/generator controls a voltage of the DC bus; and adjust at least one parameter of the powertrain to assist the motor/generator in controlling the voltage of the DC bus in the second mode.