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公开(公告)号：US20250141391A1
公开(公告)日：2025-05-01
申请号：US18496175
申请日：2023-10-27
Applicant: Caterpillar Inc.
Inventor： Ahmed Khalil , Jackson Wai , Sajan Abdul
IPC: H02P29/032 , B60L15/00 , H02P23/14
Abstract: Techniques are described to continuously calculate an inverter DC power of a synchronous machine, e.g., motor or generator, based on the individual phase currents, DC link voltage, and gate signals, which can be compared against the commanded mechanical power based of the estimated rotor speed and commanded torque. A controller can determine whether to shut down the inverter, such as the pulse width modulation (PWM), if the DC power is greater than a threshold value. Such a threshold can be defined to allow an acceptable position and speed estimation error margin.
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公开(公告)号：US20250141210A1
公开(公告)日：2025-05-01
申请号：US18927250
申请日：2024-10-25
Applicant: Caterpillar Inc.
Inventor： Firoz AHAMED , Prajod K , Sangsuk LEE
IPC: H02H5/04
Abstract: A system for maintaining a working temperature of a circuit breaker in an electrical system. The system includes a heater pad configured to be attached to the circuit breaker for transferring heat to a surface of the circuit breaker and a temperature sensor configured to detect a surface temperature of the circuit breaker. The system further includes a controller configured to receive data associated with the surface temperature of the circuit breaker and control transmission of power to the heater pad based on a deviation of the surface temperature to an outside of a threshold temperature range to maintain the working temperature of the circuit breaker.
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公开(公告)号：US20250137222A1
公开(公告)日：2025-05-01
申请号：US18497712
申请日：2023-10-30
Applicant: Caterpillar Inc.
Abstract: An excavating machine can conduct an excavation cycle that can be distinguished in a plurality of work cycle segments. To maneuver an excavation tool with respect the work surface during the excavation cycle, the excavation machine includes an excavation linkage powered by a primary electrical power source. The excavation machine can be operatively associated with a battery management system that can identify a high load condition associated with the excavation cycle and can responsively connect an auxiliary electrical power source to the hydraulic system to delivery supplemental power during the high load condition.
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公开(公告)号：US20250133976A1
公开(公告)日：2025-05-01
申请号：US18498476
申请日：2023-10-31
Applicant: Caterpillar Inc.
Inventor： Terry M. Smith, Jr. , Mathew C. Frana , Steven J. Juricak
Abstract: A machine system includes a machine having a work tool assembly coupled to a back machine end and including a linkage adjustable among raised, lowered, and middle linkage positions in a vertical operating range. A work tool coupled to the linkage has an angular orientation dependent upon the position of the linkage and is pivotable at a greater pivoting ratio to the raised linkage position and a reduced pivoting ratio to the lowered linkage position. The configuration enables maintaining the work tool at a desired service orientation in a ground-penetrating portion of the vertical operating range, whilst tucking the work tool at the raised linkage position to facilitate loading of the machine onto a trailer.
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公开(公告)号：USD1072886S1
公开(公告)日：2025-04-29
申请号：US29903648
申请日：2023-09-26
Applicant: Caterpillar Inc.
Designer： Brian P. Neathery , Adnan Kadribasic , Ryan Herdian
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Patent Agency Ranking
公开(公告)号：US20250128641A1
公开(公告)日：2025-04-24
申请号：US18490957
申请日：2023-10-20
Applicant: Caterpillar Inc.
Inventor： Timothy Beetler , Jose D. Miranda
Abstract: A battery system includes a load bus to connect to a DC link, a single pre-charge circuit connected to the load bus, multiple battery packs, and a control circuit. Each battery pack includes multiple battery strings that include battery cells connected in series, a positive contactor to connect the battery string to the load bus, and a pre-charge contactor to connect the battery string to the pre-charge circuit. The control circuit selects a battery string to pre-charge the DC link, closes the pre-charge contactor of the battery string to connect the selected battery string to the pre-charge circuit, and opens the pre-charge contactor of the selected battery string to disconnect the battery string from the pre-charge circuit and close the positive contactor of the selected battery string to connect the battery string to the load bus when the DC link is pre-charged.
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公开(公告)号：US12281462B2
公开(公告)日：2025-04-22
申请号：US18046690
申请日：2022-10-14
Applicant: Caterpillar Inc.
Inventor： Ankit Sharma , Michael D. Beyer , Thomas M. Sopko
Abstract: A control system for a machine includes one or more component controllers for one or more components of the machine. The control system also includes a supervisory controller, connected to the one or more component controllers, and having at least one supervisory processor configured to perform operations comprising receiving supervisory system inputs, including at least one of a machine component status input, a key switch input, a directional input, or an operator presence input, from an operator of the machine, requesting and receiving, from each of the one or more component controllers, a status of the one or more components, and, upon receiving an indication that a status of a component, of the one or more components, is faulted, disabling the faulted component, and disabling any other components, of the one or more components, that require the faulted component for operation.
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公开(公告)号：US12280711B2
公开(公告)日：2025-04-22
申请号：US18585485
申请日：2024-02-23
Applicant: Caterpillar Inc.
Inventor： Adam L. Berry , Ashley Dallas Menges , William Clayton Martin , Ryan P. Pecinovsky , Scott M. Toombs
Abstract: A work machine can include a machine frame; and a component box holding a plurality of electrical components mounted to a roof of the machine frame; wherein the component box includes a plurality of indicator light sets exposed on an outer surface of the component box, wherein the plurality of indicator light sets are configured to indicate to external personnel a mode of operation of the work machine.
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公开(公告)号：US12278390B2
公开(公告)日：2025-04-15
申请号：US17591882
申请日：2022-02-03
Applicant: Caterpillar Inc.
Inventor： Brian R. Bell
IPC: H01M50/35 , H01M50/271 , H01M50/618
Abstract: A battery module has battery cells and a housing. The housing includes a first end plate, a second end plate, a first side plate, and a second side plate. The battery cells are disposed between the first end plate, the second end plate, the first side plate, and the second side plate. A cover is disposed at least partially over the first end plate, the second end plate, the first side plate, and the second side plate. A pressure release vent couples to the housing and includes an interior surface that defines a plurality of sections that are configured to dislodge from the pressure release vent based on a pressure within the battery module exceeding a pressure threshold. The individual sections pivot about segments during rupture of the pressure release vent.
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公开(公告)号：US20250117010A1
公开(公告)日：2025-04-10
申请号：US18480861
申请日：2023-10-04
Applicant: Caterpillar Inc.
Inventor： Eric J. SCHULTZ , Philip WALLSTEDT
IPC: G05D1/02
Abstract: A method or system for managing autonomous vehicle operations includes receiving inputs including a task command for an autonomous mobile machine, determining an expected travel trajectory for the autonomous mobile machine to perform the task command, and determining an actual travel trajectory of the mobile machine during performance of the task command. The method or system further includes comparing the actual travel trajectory to the expected travel trajectory, and identifying an incident limiting factor responsible for a deviation between the actual travel trajectory and the expected travel, wherein comparing the actual travel trajectory is repeated at predetermined intervals during performance of the task command.
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