公开(公告)号：US20170351230A1

公开(公告)日：2017-12-07

申请号：US15172224

申请日：2016-06-03

Applicant: Caterpillar Inc.

Inventor： Brian D. Kuras ,  Michael J. Barngrover ,  Sangameshwar Sonth

IPC: G05B15/02 ,  H03K3/037

CPC classification number: H03K3/0377

Abstract: A control system for a machine having at least one control element is disclosed. The control system includes multiple input sensors in communication with the control element. The input sensor generates an input signal based on an input to the control element. The control system includes multiple actuating members to control operations of the machine. The control system includes a controller in communication with the input sensors and the actuating members. The controller receives the input signal from the input sensor and determines an imposed hysteresis level corresponding to the input signal based on a hysteresis input function. The controller is further configured to generate a hysteresis conditioned input signal based on the imposed hysteresis level.

公开(公告)号：US20240336342A1

公开(公告)日：2024-10-10

申请号：US18295438

申请日：2023-04-04

Applicant: Caterpillar Inc.

Inventor： Matthew E. Giannis ,  Joshua W. Dorothy ,  Michael J. Barngrover ,  John M. Seipold ,  Mark Allen Garety

IPC: B63H21/20 ,  B63H23/12

CPC classification number: B63H21/20 ,  B63H23/12 ,  B63H2021/205

Abstract: A propulsion system includes an engine having an engine output shaft, and an electric motor assembly including an electric motor having an output gear fixed to rotate with a driveshaft, and a disconnect clutch. The electric motor assembly further includes a common housing positioned around the electric motor and the disconnect clutch, and a fluid system including a fluid circuit for cooling and lubrication of the electric motor and the disconnect clutch. Related methodology including operating a propulsion system in a motor-only mode, an engine-only mode, and a hybrid mode is also disclosed.

公开(公告)号：US20240336343A1

公开(公告)日：2024-10-10

申请号：US18295423

申请日：2023-04-04

Applicant: Caterpillar Inc.

Inventor： Matthew E. Giannis ,  Joshua W. Dorothy ,  Michael J. Barngrover ,  John M. Seipold ,  Mark Allen Garety

IPC: B63H23/12 ,  B63H21/14 ,  B63H21/38 ,  B63H23/30

CPC classification number: B63H23/12 ,  B63H21/14 ,  B63H21/383 ,  B63H21/386 ,  B63H23/30 ,  B63H2023/305

Abstract: A propulsion system includes an electric motor assembly having an electric motor, a driveshaft, and a disconnect clutch. The disconnect clutch is structured to couple the driveshaft to an engine output shaft. The propulsion system further includes a fluid system having a cooling and lubrication fluid circuit fluidly connected to a first pump, and a clutch actuation fluid circuit fluidly connected to a second pump. The cooling and lubrication fluid circuit is fluidly connected to the clutch actuation fluid circuit via at least one of respective pump outgoing conduits from the first pump and the second pump or respective pump supply conduits to the first pump and the second pump. Related operating methodology is also disclosed.

公开(公告)号：US12258729B2

公开(公告)日：2025-03-25

申请号：US18046615

申请日：2022-10-14

Applicant: Caterpillar Inc.

Inventor： Michael J. Barngrover ,  Brian E. Lister ,  Michael D. Beyer

IPC: E02F9/20

Abstract: A system and method for controlling a motor of an electric drivetrain having a multi-speed transmission with at least a first clutch and a second clutch. The system and method includes initiating a transmission shift requiring engagement of the first clutch, applying synchronizing torque commands to the motor based on an engagement parameter of the first clutch until the shift is complete, and applying non-shifting torque commands to the motor after the shift is complete.

公开(公告)号：US10404239B2

公开(公告)日：2019-09-03

申请号：US15172224

申请日：2016-06-03

Applicant: Caterpillar Inc.

Inventor： Brian D. Kuras ,  Michael J. Barngrover ,  Sangameshwar Sonth

IPC: H03K3/037

Abstract: A control system for a machine having at least one control element is disclosed. The control system includes multiple input sensors in communication with the control element. The input sensor generates an input signal based on an input to the control element. The control system includes multiple actuating members to control operations of the machine. The control system includes a controller in communication with the input sensors and the actuating members. The controller receives the input signal from the input sensor and determines an imposed hysteresis level corresponding to the input signal based on a hysteresis input function. The controller is further configured to generate a hysteresis conditioned input signal based on the imposed hysteresis level.