DC-DC converter control
    4.
    发明授权

    公开(公告)号:US11458852B2

    公开(公告)日:2022-10-04

    申请号:US17246305

    申请日:2021-04-30

    申请人: Cummins Inc.

    IPC分类号: B60L1/00 B60L53/24 H02M3/00

    摘要: A method to control an output voltage of a DC-DC converter, and voltage control logic operable to generate a voltage command to implement the control method, the method including sensing a voltage of a bus of an electric-drive vehicle; increasing a command voltage signal from the sensed voltage to a nominal voltage during a first time period; increasing the command voltage signal from the nominal voltage to a desired voltage during a second time period greater than the first time period; and generating a voltage output based on the command voltage signal.

    DYNAMIC ACCELERATOR RESPONSE MANAGEMENT FOR A VEHICLE

    公开(公告)号:US20210403006A1

    公开(公告)日:2021-12-30

    申请号:US16625331

    申请日:2018-06-25

    申请人: Cummins Inc.

    IPC分类号: B60W50/00

    摘要: An apparatus includes a position circuit structured to monitor a position of an accelerator of a vehicle and a speed circuit structured to monitor a speed of the vehicle. The position corresponds with an associated response of a prime mover of the vehicle. The associated response includes at least one of a torque output and a power output of the prime mover. The apparatus further includes a response management circuit structured to receive an indication regarding the position of the accelerator and the speed of the vehicle; determine that the indication satisfies a remapping condition, the remapping condition including at least one of a creep condition, an obstacle condition, a deceleration condition, and a reverse condition; and dynamically remap the associated response of the prime mover of the vehicle based on the position of the accelerator in response to the indication satisfying the remapping condition.

    Methods to identify missed engine stops and serviceability

    公开(公告)号:US11164405B2

    公开(公告)日:2021-11-02

    申请号:US15758257

    申请日:2015-09-09

    申请人: CUMMINS INC.

    IPC分类号: G07C5/08 F02N11/08

    摘要: The present disclosure provides a method in a vehicle, comprising detecting an engine stop opportunity and recording, in a memory, data corresponding to a first engine stop that occurred in response to detection of the engine stop opportunity. The method further includes detecting an engine stop inhibit, and recording, in a memory, data corresponding to a first missed engine stop wherein the first missed engine stop indicates detection of the engine stop opportunity without an engine stop in response to the detection of the engine stop opportunity.

    Managing automatic stop/start frequency

    公开(公告)号:US10731619B2

    公开(公告)日:2020-08-04

    申请号:US16362249

    申请日:2019-03-22

    申请人: Cummins, Inc.

    发明人: Martin T. Books

    IPC分类号: F02N11/08 F02N11/10

    摘要: Systems, apparatuses, and methods include a stop/start module in operative communication with an engine. The stop/start module is configured to determine a target start/stop ratio for an engine based on an operating parameter, determine an actual start/stop ratio for the engine based on a determined number of times that the engine is turned off in response to a determined number of stopping events, activate an inhibiting condition in response to the actual stop ratio being greater than the target stop ratio at a beginning of a driving event, and prevent the engine from turning off during a stop event in response to determining that the inhibiting condition is active and that a stopping event has occurred.

    Engine start/stop control system and method

    公开(公告)号:US10414391B2

    公开(公告)日:2019-09-17

    申请号:US15240585

    申请日:2016-08-18

    申请人: CUMMINS INC.

    摘要: The present disclosure provides an engine stop/start control system for a vehicle comprising a first engine restart module configured to set a restart frequency and duration of an engine in response to a sensed ambient temperature, a second engine restart module configured to control the engine in response to a sensed characteristic temperature associated with the engine, a third engine restart module configured to control the engine in response to occurrence or non-occurrence of at least one expected charging event along a predefined route, a fourth engine restart module configured to control the engine in response to a state-of-charge of an energy storage device, and a route optimization module configured to set and adjust a proposed route to a destination that results in reduced engine usage.