SOC AND SOH CO-ESTIMATION SYSTEMS AND METHODS FOR ELECTRIC VEHICLES

    公开(公告)号:US20210190867A1

    公开(公告)日:2021-06-24

    申请号:US17193555

    申请日:2021-03-05

    Applicant: CUMMINS INC.

    Abstract: A system is provided for performing a power estimation process for an electric vehicle using a controller. The controller estimates an inner state of an energy storage supply of the electric vehicle. The inner state represents a state-of-charge (SOC) and/or a state-of-health (SOH) of the energy storage supply. The controller also estimates an SOC value and/or an SOH value of the energy storage supply based on at least one of: a present current level, a present voltage level, a present temperature, and time-based information. The controller further estimates a bounded SOC value based on the SOC value, a first upper bound, a the first lower bound, and/or estimates a bounded SOH value based on the SOH value, a second upper bound, and a second lower bound. The controller then controls an electrification process of the electric vehicle based on the bounded SOC and/or SOH values.

    Prevention of Theft and Misuse of Ammonia Storage Systems
    3.
    发明申请
    Prevention of Theft and Misuse of Ammonia Storage Systems 审中-公开
    防止盗用和滥用氨储存系统

    公开(公告)号:US20150166357A1

    公开(公告)日:2015-06-18

    申请号:US14104657

    申请日:2013-12-12

    Applicant: Cummins Inc.

    CPC classification number: G08B13/00 C01C1/003 G08B13/06

    Abstract: A method and system that protects contained anhydrous ammonia, such as from theft or misuse. The contained anhydrous ammonia, for example is part of an ammonia storage and delivery system. The anhydrous ammonia is contained by its absorption into a solid absorbent material. A component is configured to interfere with unauthorized handling of the anhydrous ammonia, where the component is operatively engaged with the contained anhydrous ammonia.

    Abstract translation: 保护含有无水氨的方法和系统,如盗窃或滥用。 所含的无水氨,例如是氨储存和输送系统的一部分。 无水氨通过其吸收到固体吸收材料中而被包含。 组件被配置为干扰未经处理的无水氨,其中组分与所含的无水氨可操作地接合。

    SYSTEM AND APPARATUS FOR ENHANCING EXHAUST AFTERTREATMENT STARTUP EMISSIONS CONTROL
    5.
    发明申请
    SYSTEM AND APPARATUS FOR ENHANCING EXHAUST AFTERTREATMENT STARTUP EMISSIONS CONTROL 审中-公开
    用于增强排气启动排放控制的系统和装置

    公开(公告)号:US20140134054A1

    公开(公告)日:2014-05-15

    申请号:US14161153

    申请日:2014-01-22

    Applicant: Cummins Inc.

    Abstract: An aftertreatment system including a method which provides a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an engine; determines that an ammonia pre-load condition for the SCR catalyst is present; determines a first amount of ammonia pre-load in response to the ammonia pre-load condition; injects an amount of ammonia or urea into the exhaust stream in response to the first amount of ammonia; and adsorbs a second amount of ammonia onto the SCR catalyst in response to injecting an amount of ammonia or urea, where the second amount of ammonia is either the injected amount of ammonia or an amount of ammonia resulting from hydrolysis from the injected amount of urea.

    Abstract translation: 一种后处理系统,包括提供设置在发动机的排气流中的选择性催化还原(SCR)催化剂的方法; 确定存在用于SCR催化剂的氨预加载条件; 响应于氨预负荷状态确定氨预负载的第一量; 响应于第一量的氨将一定量的氨或尿素注入排气流中; 并且响应于注入一定量的氨或尿素而将第二量的氨吸附到SCR催化剂上,其中第二量的氨是从注射量的尿液中注入的氨的量或由水解产生的氨的量。

    Methods and systems for accelerated determining of state of health using incremental capacity analysis

    公开(公告)号:US11703548B2

    公开(公告)日:2023-07-18

    申请号:US17205330

    申请日:2021-03-18

    Applicant: Cummins Inc.

    CPC classification number: G01R31/392 G01R31/385

    Abstract: Systems and methods for determining state of health (SOH) of a battery. For example, a method includes conditioning the battery by determining an initial state of charge of the battery; charging the battery from the initial state of charge to a first target state of charge via a predetermined multi-stage charging sequence; and determining SOH of the battery by charging the battery from the first target state of charge to a second target state of charge at an ICA charging rate; acquiring a voltage vs. capacity (QV) data of the battery during charging of the battery from the first target state of charge to the second target state of charge; obtaining an incremental capacity (IC) data based on at least the acquired QV data; pre-processing the IC data; extracting an incremental capacity analysis (ICA) peak from the IC data; and determining the SOH of the battery based upon the ICA peak.

Patent Agency Ranking