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    Exhaust temperature maintenance using a parasitic load
    1.
    发明授权
    Exhaust temperature maintenance using a parasitic load 有权

    公开(公告)号：US10794306B2

    公开(公告)日：2020-10-06

    申请号：US16258013

    申请日：2019-01-25

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  SriVidya Lavanya Kamisetty

    IPC: B60T7/12 ,  F02D41/00 ,  F02B37/00 ,  B60W20/11 ,  F02D21/08 ,  F02M26/63 ,  F02M26/10

    Abstract: A power system is disclosed. The power system may include one or more memories and a controller. The controller may determine an exhaust temperature of an engine associated with a continuously variable transmission or a hybrid transmission. The controller may determine a target increase to the exhaust temperature based on the exhaust temperature failing to satisfy a threshold. The controller may determine, based on a lookup table, a target increase to a torque output of the engine based on the target increase to the exhaust temperature. The controller may cause a parasitic torque of the engine to be increased based on the target increase to the torque output.

    System including engine and method of operating engine
    2.
    发明授权
    System including engine and method of operating engine 有权

    公开(公告)号：US11274617B1

    公开(公告)日：2022-03-15

    申请号：US16995940

    申请日：2020-08-18

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  Andrew Nathan Schifferer ,  Kirk Anderson ,  Patrick William Sullivan, Jr. ,  Ryan Robert Stoffel ,  Phillip Alvin Hartz

    IPC: F02D41/14 ,  F02D41/02 ,  F02D41/26

    Abstract: A system includes an engine adapted to output a torque, a parasitic load adapted to receive a portion of the torque from the engine, and a controller communicably coupled to the parasitic load. The controller is configured to determine an actual exhaust temperature value of an exhaust gas flow exiting the engine and a minimum fuel amount to be injected into the engine. The controller is configured to compare the actual exhaust temperature value with an exhaust temperature threshold value of the exhaust gas flow to determine a first difference between the actual exhaust temperature value and the exhaust temperature threshold value. The controller is configured to determine a target torque output of the engine based on the first difference and the minimum fuel amount. The controller is configured to cause the torque to be increased to attain the target torque output using the parasitic load.

    Exhaust temperature maintenance using a parasitic load
    3.
    发明授权
    Exhaust temperature maintenance using a parasitic load 有权

    公开(公告)号：US11225920B2

    公开(公告)日：2022-01-18

    申请号：US16947380

    申请日：2020-07-30

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  SriVidya Lavanya Kamisetty

    IPC: B60T7/12 ,  F02D41/00 ,  F02B37/00 ,  B60W20/11 ,  F02D21/08 ,  F02M26/63 ,  F02M26/10

    Abstract: A power system is disclosed. The power system may include one or more memories and a controller. The controller may determine an exhaust temperature of an engine associated with a continuously variable transmission or a hybrid transmission. The controller may determine a target increase to the exhaust temperature based on the exhaust temperature failing to satisfy a threshold. The controller may determine, based on a lookup table, a target increase to a torque output of the engine based on the target increase to the exhaust temperature. The controller may cause a parasitic torque of the engine to be increased based on the target increase to the torque output.

    SYSTEM INCLUDING ENGINE AND METHOD OF OPERATING ENGINE
    4.
    发明申请
    SYSTEM INCLUDING ENGINE AND METHOD OF OPERATING ENGINE 有权

    公开(公告)号：US20220056862A1

    公开(公告)日：2022-02-24

    申请号：US16995940

    申请日：2020-08-18

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  Andrew Nathan Schifferer ,  Kirk Anderson ,  Patrick William Sullivan, JR. ,  Ryan Robert Stoffel ,  Phillip Alvin Hartz

    IPC: F02D41/02 ,  F02D41/14 ,  F02D41/26

    Abstract: A system includes an engine adapted to output a torque, a parasitic load adapted to receive a portion of the torque from the engine, and a controller communicably coupled to the parasitic load. The controller is configured to determine an actual exhaust temperature value of an exhaust gas flow exiting the engine and a minimum fuel amount to be injected into the engine. The controller is configured to compare the actual exhaust temperature value with an exhaust temperature threshold value of the exhaust gas flow to determine a first difference between the actual exhaust temperature value and the exhaust temperature threshold value. The controller is configured to determine a target torque output of the engine based on the first difference and the minimum fuel amount. The controller is configured to cause the torque to be increased to attain the target torque output using the parasitic load.

    RIMPULL LIMIT BASED ON WHEEL SLIPPAGE
    5.
    发明申请
    RIMPULL LIMIT BASED ON WHEEL SLIPPAGE 审中-公开

    公开(公告)号：US20200255018A1

    公开(公告)日：2020-08-13

    申请号：US16272708

    申请日：2019-02-11

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  Dhanashekar Arcot Krishnamurthy

    IPC: B60W30/18 ,  B60W20/40 ,  F16H61/02 ,  F16H37/02 ,  F16H59/40 ,  F16H59/44

    Abstract: A machine is disclosed. The machine may include a continuously variable transmission, a location or movement module, and a controller. The controller may receive a first signal indicating a transmission output speed for the machine. The controller may receive, from the location or movement module, a second signal indicating location or movement information of the machine. The controller may determine a traction value based on the first signal and the second signal. The controller may determine a rimpull limit value based on the traction value. The controller may provide the rimpull limit value to the continuously variable transmission, wherein the continuously variable transmission is to determine a transmission output torque of the machine based on the rimpull limit value.

    Control strategy for a powertrain system
    7.
    发明授权
    Control strategy for a powertrain system 有权

    公开(公告)号：US10029694B2

    公开(公告)日：2018-07-24

    申请号：US15285771

    申请日：2016-10-05

    Applicant: Caterpillar Inc.

    Inventor： Jeremy Sharp ,  Suman Goli ,  Mark E Rettig

    IPC: B60W10/06 ,  B60W10/10 ,  B60W30/188 ,  E02F9/20 ,  E02F3/28

    Abstract: A control system for a powertrain in a machine includes a first sensor which generates a first signal indicative of a ground speed of the machine. The control system includes a second sensor which generates a second signal indicative of a load of an engine in the powertrain. The control system includes a third sensor which generates a third signal indicative of an operational state of the machine. The control system includes an input device which enables an operator to generate a request for a powertrain output. The control system further includes a controller in communication with the first sensor, the second sensor, the third sensor and the input device. The controller determines an engine speed command and a transmission output torque command to produce a powertrain output based at least on the first signal, the second signal and the third signal in response to the requested powertrain output.

    Rimpull limit based on wheel slippage
    8.
    发明授权
    Rimpull limit based on wheel slippage 有权

    公开(公告)号：US10981570B2

    公开(公告)日：2021-04-20

    申请号：US16272708

    申请日：2019-02-11

    Applicant: Caterpillar Inc.

    Inventor： Suman Goli ,  Dhanashekar Arcot Krishnamurthy

    IPC: B60W30/18 ,  B60W20/40 ,  F16H61/02 ,  F16H37/02 ,  F16H59/44 ,  F16H59/40 ,  F16H61/472 ,  F16H61/00 ,  F16H59/50

    Abstract: A machine is disclosed. The machine may include a continuously variable transmission, a location or movement module, and a controller. The controller may receive a first signal indicating a transmission output speed for the machine. The controller may receive, from the location or movement module, a second signal indicating location or movement information of the machine. The controller may determine a traction value based on the first signal and the second signal. The controller may determine a rimpull limit value based on the traction value. The controller may provide the rimpull limit value to the continuously variable transmission, wherein the continuously variable transmission is to determine a transmission output torque of the machine based on the rimpull limit value.

    CONTROL STRATEGY FOR A POWERTRAIN SYSTEM
    10.
    发明申请
    CONTROL STRATEGY FOR A POWERTRAIN SYSTEM 审中-公开

    公开(公告)号：US20180093670A1

    公开(公告)日：2018-04-05

    申请号：US15285771

    申请日：2016-10-05

    Applicant: Caterpillar Inc.

    Inventor： Jeremy Sharp ,  Suman Goli ,  Mark E. Rettig

    IPC: B60W30/188 ,  B60W10/06 ,  B60W10/10 ,  E02F9/20

    CPC classification number: B60W30/1882 ,  B60W10/06 ,  B60W10/10 ,  B60W2510/1005 ,  B60W2520/10 ,  B60W2710/0644 ,  B60W2710/105 ,  E02F3/283 ,  E02F9/2066 ,  E02F9/2079

    Abstract: A control system for a powertrain in a machine includes a first sensor which generates a first signal indicative of a ground speed of the machine. The control system includes a second sensor which generates a second signal indicative of a load of an engine in the powertrain. The control system includes a third sensor which generates a third signal indicative of an operational state of the machine. The control system includes an input device which enables an operator to generate a request for a powertrain output. The control system further includes a controller in communication with the first sensor, the second sensor, the third sensor and the input device. The controller determines an engine speed command and a transmission output torque command to produce a powertrain output based at least on the first signal, the second signal and the third signal in response to the requested powertrain output.

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