SPEED LIMITING OF VEHICLES EQUIPPED WITH ENGINE BRAKES

    公开(公告)号:US20210070299A1

    公开(公告)日:2021-03-11

    申请号:US16562085

    申请日:2019-09-05

    Applicant: Cummins Inc.

    Abstract: A method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.

    Speed limiting of vehicles equipped with engine brakes

    公开(公告)号:US10940862B1

    公开(公告)日:2021-03-09

    申请号:US16562085

    申请日:2019-09-05

    Applicant: Cummins Inc.

    Abstract: A method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.

    Predictive road speed governor
    3.
    发明授权

    公开(公告)号:US11181063B2

    公开(公告)日:2021-11-23

    申请号:US16729872

    申请日:2019-12-30

    Applicant: Cummins Inc.

    Inventor: Joseph R. Dynes

    Abstract: Engine control modules as well as methods and systems implementable in a vehicle are disclosed, in which the engine control module includes a processing unit operative to control a target vehicle speed. The processing unit receives current status information and lookahead information regarding a route to be taken by the vehicle, performs a lookahead power requirement calculation based on the current status information and the lookahead information to determine an event, calculates a plurality of offsets with respect to an isochronous speed of the vehicle based on the determined event, and sets a target vehicle speed curve by applying the plurality of offsets to the isochroous speed.

    COASTING MANAGEMENT CONTROL OF A VEHICLE WITH A ROAD SPEED GOVERNOR

    公开(公告)号:US20200156616A1

    公开(公告)日:2020-05-21

    申请号:US16748447

    申请日:2020-01-21

    Applicant: Cummins Inc.

    Abstract: A system, method, and apparatus includes management of coasting during operation of a vehicle having an engine that is selectively engageable to a driveline, a cruise control mode of operation, and a road speed governor mode of operation. A road speed governor mode of operation of the vehicle is active in response to a road speed governor operation condition being present wherein the driveline is engaged with the engine. When a coasting management condition is present, operation of the vehicle in the road speed governor mode is disabled, the driveline is disengaged from the engine, and the vehicle is operated in a coasting mode of operation. The coasting mode of operation can be canceled when a coasting mode of operation cancellation condition is present to operate the vehicle in a road speed governor mode of operation with the driveline re-engaged with the engine.

    PREDICTIVE ROAD SPEED GOVERNOR
    8.
    发明申请

    公开(公告)号:US20210199064A1

    公开(公告)日:2021-07-01

    申请号:US16729872

    申请日:2019-12-30

    Applicant: Cummins Inc.

    Inventor: Joseph R. Dynes

    Abstract: Engine control modules as well as methods and systems implementable in a vehicle are disclosed, in which the engine control module includes a processing unit operative to control a target vehicle speed. The processing unit receives current status information and lookahead information regarding a route to be taken by the vehicle, performs a lookahead power requirement calculation based on the current status information and the lookahead information to determine an event, calculates a plurality of offsets with respect to an isochronous speed of the vehicle based on the determined event, and sets a target vehicle speed curve by applying the plurality of offsets to the isochroous speed.

    SPEED LIMITING OF VEHICLES EQUIPPED WITH ENGINE BRAKES

    公开(公告)号:US20210188271A1

    公开(公告)日:2021-06-24

    申请号:US17194814

    申请日:2021-03-08

    Applicant: Cummins Inc.

    Abstract: A method of substantially preventing road speed excursions while traversing a road grade includes: determining, by a controller, a predicted over speed for a vehicle during an upcoming downhill grade based on a difference between a predicted engine braking power of the vehicle and an amount of braking power that substantially prevents a speed of the vehicle from exceeding a speed threshold; and responsive to the determination, controlling, by the controller, one or more components of the vehicle to substantially prevent the vehicle from exceeding the speed threshold.

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