公开(公告)号：US20240352711A1

公开(公告)日：2024-10-24

申请号：US18305037

申请日：2023-04-21

Applicant: Caterpillar Inc.

Inventor： Brian E. Lister

IPC: E02F9/22

CPC classification number: E02F9/2296 ,  B60K17/10 ,  E02F9/2228 ,  F16H61/0025

Abstract: A machine can include an electric powertrain configured for electrical power and which includes a transmission. The transmission may be operatively associated with a hydraulic system that includes a hydraulic pump and a pressure relief valve disposed between the pump and the transmission. To reduce noise generated by the pressure relief valve, operation of the pressure relief valve may be regulated according to a pump function that relates operation of the pressure relief valve with a sensed pump operation associated with the hydraulic pump.

公开(公告)号：US20240351573A1

公开(公告)日：2024-10-24

申请号：US18304746

申请日：2023-04-21

Applicant: Caterpillar Inc.

Inventor： Robert M. McDavid ,  Jonathan W. Anders ,  Bobby John ,  Timothy A. Bazyn ,  Youngjin Son ,  Aaron W. Costall ,  Radoslav B. Ivanov

IPC: B60W20/15 ,  F02B39/10 ,  F02D41/00 ,  F02D41/14

CPC classification number: B60W20/15 ,  F02B39/10 ,  F02D41/0027 ,  F02D41/1454

Abstract: Operating a hybrid power system for a machine includes combusting a direct injected gaseous hydrogen fuel in an engine operating an electrical generator, and increasing a load demand of the hybrid power system. Operating the hybrid power system further includes operating an electrical-assist compressor to supply an increased airflow into the engine based on an increased engine power demand to satisfy the increased load demand. Air-fuel equivalence ratio of the engine (so-called “lambda”) is maintained at a ratio of about 2 or greater to limit NOx emissions, and between a hydrogen fuel misfire limit and a hydrogen fuel preignition limit. Related apparatus and control logic is also disclosed.

公开(公告)号：US12125188B2

公开(公告)日：2024-10-22

申请号：US17741212

申请日：2022-05-10

Applicant: Caterpillar Inc.

Inventor： Michael Dennis Braunstein

IPC: G06T7/00 ,  B60L3/04 ,  B60L3/12

CPC classification number: G06T7/0004 ,  B60L3/04 ,  B60L3/12 ,  G06T2207/30184

Abstract: Machines can operate based on electricity received from a charging rail system installed along a route at a worksite. Sensors on the machines capture image data indicating locations and/or orientations of components of the charging rail system. Machine controllers of the machine, and/or a worksite controller, can monitor the integrity of the charging rail system by detecting possible faults if the locations and/or orientations of one or more components vary by more than a threshold amount from target locations and/or orientations. The machine controllers and/or the worksite controller can also initiate one or more response actions when a possible fault in the charging rail system is detected.

公开(公告)号：US12123163B2

公开(公告)日：2024-10-22

申请号：US17114014

申请日：2020-12-07

Applicant: Caterpillar Inc.

Inventor： Bruce Raymond Vahling ,  David L. Cox

IPC: E02F3/815 ,  E02F3/76

CPC classification number: E02F3/8152 ,  E02F3/764 ,  E02F3/815 ,  E02F3/8157 ,  E02F3/7645 ,  E02F3/765

Abstract: A wear element for a mounting system for a blade of a motor grader is provided. The wear element extends along a longitudinal axis. The wear element includes a first portion having a first cross-sectional area transverse to the longitudinal axis. The wear element further includes a second portion opposite of the first portion, the second portion having a second cross-sectional area having a V-shape that extends away from the first portion.

公开(公告)号：US12122307B2

公开(公告)日：2024-10-22

申请号：US17709999

申请日：2022-03-31

Applicant: Caterpillar Inc.

Inventor： Robert A. Jackson

IPC: B60R16/02 ,  B60R16/023 ,  B60R16/027 ,  B60R16/03 ,  H01B7/00 ,  H01B7/02 ,  H01B7/18 ,  H02G3/04

CPC classification number: B60R16/0207 ,  B60R16/0231 ,  B60R16/027 ,  B60R16/03 ,  H02G3/0406 ,  H01B7/0009 ,  H01B7/02 ,  H01B7/1875

Abstract: A cable assembly for a work machine, includes a cable and a collet. The cable includes an electrically conductive core, an insulating layer covering the core; an electrically conductive shield layer covering the insulating layer over a first length of the cable, and the insulating layer is exposed over a second length of the cable. The shield layer is folded back over a fold length, and the fold length includes two layers of the shield layer. The collet includes an inner sleeve and an outer sleeve extending over a portion of the inner sleeve at an end of the collet. The two shield layers of the fold length are arranged over the inner sleeve and under the outer sleeve, the insulating layer is arranged under the inner sleeve, and the second length of the cable extends through the inner sleeve.

公开(公告)号：US20240348154A1

公开(公告)日：2024-10-17

申请号：US18134099

申请日：2023-04-13

Applicant: Caterpillar Inc.

Inventor： Basheer Qattum ,  Dachuan Yu

IPC: H02M1/32 ,  H02M1/44 ,  H02M7/537

CPC classification number: H02M1/32 ,  H02M1/44 ,  H02M7/537

Abstract: Techniques that eliminate the need for a dedicated pre-charge resistor by using the main power path of the AC/DC, DC/DC, or DC/AC converter. By eliminating the pre-charge resistor, the techniques increase the maximum allowable current rating of the converter as well as increase the impedance and inductance of the converter.

公开(公告)号：US20240347742A1

公开(公告)日：2024-10-17

申请号：US18299940

申请日：2023-04-13

Applicant: Caterpillar Inc.

Inventor： Umakanth SAKARAY ,  Zachary KROEHLER ,  Pavan Kumar Reddy KUDUMULA

IPC: H01M8/04029 ,  H01M8/04007 ,  H01M8/04014 ,  H01M8/04082 ,  H01M8/0432 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/0606

CPC classification number: H01M8/04029 ,  H01M8/04014 ,  H01M8/04067 ,  H01M8/04216 ,  H01M8/04358 ,  H01M8/04731 ,  H01M8/04768 ,  H01M8/0606

Abstract: A system for vaporizing hydrogen for providing hydrogen in gaseous form to a plurality of hydrogen fuel cells includes: a vaporizer; a radiator configured to cool a cooling fluid in a coolant system of the plurality of hydrogen fuel cells; a spray supply system comprising: a tank; a pump configured to pump water from the tank; a nozzle system; and a condensate tray configured to collect condensate and return the condensate to the tank. The system is configured to activate the pump to pump the condensate collected in the tank to cool the radiator based on a temperature of the cooling fluid.

公开(公告)号：US20240344300A1

公开(公告)日：2024-10-17

申请号：US18298525

申请日：2023-04-11

Applicant: Caterpillar Inc.

Inventor： Jacob C. MALEY

IPC: E02F9/26 ,  E02F9/12 ,  E02F9/20 ,  E02F9/24

CPC classification number: E02F9/262 ,  E02F9/123 ,  E02F9/2033 ,  E02F9/24

Abstract: A rotational machine includes a base operable to move the rotational machine, a body rotationally mounted on the base, one or more sensors coupled to the body, and a controller communicably coupled to the one or more sensors. The one or more sensors detect movement data of the rotational machine and location data of an object near the rotational machine. The controller is operable to perform a hazard warning method. The method includes applying a detection zone filter to the location data of the object based on the movement data of the rotational machine and annunciating an alert if the location data passes the detection zone filter.

公开(公告)号：US20240336413A1

公开(公告)日：2024-10-10

申请号：US18295593

申请日：2023-04-04

Applicant: Caterpillar Inc.

Inventor： Mark W. THOMPSON

IPC: B65D63/10

CPC classification number: B65D63/1063 ,  B65D2563/101

Abstract: In some implementations, an adjustable seal includes a multi-layer strap having a first end and a second end. A first layer of the multi-layer strap comprises a non-sealing material. A second layer of the multi-layer strap comprises a sealing material. The first end of the multi-layer strap includes a locking mechanism on the first layer of the multi-layer strap. The second end of the multi-layer strap is configured to be inserted through an opening of the locking mechanism to cause the multi-layer strap to form a loop that is to provide a seal. The first layer of the multi-layer strap is to form an external layer of the loop and the second layer of the multi-layer strap is to form an internal layer of the loop.

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.