Vehicle coasting systems and methods

    公开(公告)号:US10793134B2

    公开(公告)日:2020-10-06

    申请号:US15869461

    申请日:2018-01-12

    申请人: Cummins, Inc.

    摘要: A system for a vehicle including a controller structured to communicate with a transmission and an engine of a vehicle, and additionally structured to: receive at least one of vehicle operation data, route data, or dynamic data during operation of the vehicle; determine that the vehicle is in a coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data; provide a command to at least one of the engine and the transmission to maintain the coasting state for the vehicle; and determine an end of the coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data.

    Systems and methods for pre-hill cruise speed adjustment

    公开(公告)号:US10023188B2

    公开(公告)日:2018-07-17

    申请号:US14935656

    申请日:2015-11-09

    申请人: Cummins Inc.

    摘要: A system, method, and apparatus includes management of cruise speed in anticipation of upcoming terrain changes. A cruise speed controller can be structured to predict a change in speed of vehicle in light of an upcoming terrain feature, and lead a change in reference speed to which the cruise speed controller is regulating vehicle speed to accommodate the upcoming terrain feature. In one embodiment a physics based model of the vehicle is used to predict a speed change. If predicted speed change exceeds a threshold, the cruise speed controller will initiate a change in speed to either speed up for an upcoming uphill terrain feature, or slow down for an upcoming downhill feature. In one form the distance in advance of the terrain feature as well as the velocity change profile (acceleration or deceleration) are determined by computation of a regression formula.

    SYSTEMS AND METHODS FOR PRE-HILL CRUISE SPEED ADJUSTMENT

    公开(公告)号:US20170129492A1

    公开(公告)日:2017-05-11

    申请号:US14935656

    申请日:2015-11-09

    申请人: Cummins Inc.

    IPC分类号: B60W30/18 B60W10/18 B60W10/04

    摘要: A system, method, and apparatus includes management of cruise speed in anticipation of upcoming terrain changes. A cruise speed controller can be structured to predict a change in speed of vehicle in light of an upcoming terrain feature, and lead a change in reference speed to which the cruise speed controller is regulating vehicle speed to accommodate the upcoming terrain feature. In one embodiment a physics based model of the vehicle is used to predict a speed change. If predicted speed change exceeds a threshold, the cruise speed controller will initiate a change in speed to either speed up for an upcoming uphill terrain feature, or slow down for an upcoming downhill feature. In one form the distance in advance of the terrain feature as well as the velocity change profile (acceleration or deceleration) are determined by computation of a regression formula.