SYSTEMS AND METHODS FOR DIAGNOSING A THERMOSTAT

    公开(公告)号:US20190271259A1

    公开(公告)日:2019-09-05

    申请号:US16415346

    申请日:2019-05-17

    Applicant: Cummins Inc.

    Abstract: Systems and methods are disclosed for determining a temperature of a coolant in a cooling system for an engine and diagnosing a thermostat in the engine responsive to the determined temperature. A system includes a liquid cooling system including a thermostat, the liquid cooling system structured to circulate a coolant, and a controller coupled to the liquid cooling system and the EGR system. The controller is structured to: receive engine heat data indicative of a first amount of heat introduced into an engine; receive heat loss data indicative of an amount of heat loss experienced by the coolant; determine a temperature of the coolant based on the first amount of heat and the amount of heat loss; compare the determined temperature of the coolant to a sensed temperature of the coolant; and determine a status of the thermostat responsive to the comparison.

    CHARGER PEAK POWER OPTIMIZATION FOR FLEET DEPOT

    公开(公告)号:US20220348106A1

    公开(公告)日:2022-11-03

    申请号:US17701962

    申请日:2022-03-23

    Applicant: Cummins Inc.

    Abstract: An electrified vehicle with a powertrain is disclosed, comprising: a battery, and a controller configured to be in communication with a plurality of electric vehicles. The controller including a processor and a non-transient computer readable storage medium comprising instructions. The instructions cause the vehicle to determine a plurality of characteristics of the electrified vehicle; determine a plurality of characteristics of a plurality of chargers, determine a plurality of characteristics of each of a plurality of charging depots; process the plurality of characteristics of the electrified vehicle, the plurality of characteristics of each of the plurality of chargers, and the plurality of characteristics of multiple charging depots to identify charging opportunities for the electrified vehicle over the course of a time period; perform a multiple charging depot optimization analysis to generate a power grid peak hour profile; and perform a peak power optimization analysis to generate a vehicle charging profile.

    CHARGER PEAK POWER OPTIMIZATION FOR FLEET DEPOT

    公开(公告)号:US20220348105A1

    公开(公告)日:2022-11-03

    申请号:US17246605

    申请日:2021-05-01

    Applicant: Cummins Inc.

    Abstract: A system for charging electric vehicles is disclosed, comprising: vehicle chargers coupled to an electric power grid; and a controller in communication with the chargers and vehicles and configured to execute software to cause the controller to: determine characteristics of each vehicle, the characteristics including a charge capacity of a battery system of each vehicle and a mission schedule; determine characteristics of each charger, the characteristics including a type of each charger and a charging capacity; process the characteristics of each vehicle and each charger to identify charging opportunities for each vehicle over the course of a time period; and perform a peak power optimization analysis to generate a vehicle charging profile configured to activate a minimum number of chargers simultaneously and to minimize downtimes of the plurality of chargers to thereby distribute the power demand from the electric power grid and result in an initial peak power demand.

    Systems and methods for diagnosing a thermostat

    公开(公告)号:US11125146B2

    公开(公告)日:2021-09-21

    申请号:US16415346

    申请日:2019-05-17

    Applicant: Cummins Inc.

    Abstract: Systems and methods are disclosed for determining a temperature of a coolant in a cooling system for an engine and diagnosing a thermostat in the engine responsive to the determined temperature. A system includes a liquid cooling system including a thermostat, the liquid cooling system structured to circulate a coolant, and a controller coupled to the liquid cooling system and the EGR system. The controller is structured to: receive engine heat data indicative of a first amount of heat introduced into an engine; receive heat loss data indicative of an amount of heat loss experienced by the coolant; determine a temperature of the coolant based on the first amount of heat and the amount of heat loss; compare the determined temperature of the coolant to a sensed temperature of the coolant; and determine a status of the thermostat responsive to the comparison.

    INTERNAL COMBUSTION ENGINE AND METHOD TO INCREASE THE TEMPERATURE OF A LIQUID IN THE INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20200025119A1

    公开(公告)日:2020-01-23

    申请号:US16338312

    申请日:2016-09-30

    Applicant: Cummins Inc.

    Abstract: A method, controller, and internal combustion engine including the controller and operable in accordance with the method by: determining a temperature of a working liquid in an engine block circuit (31, 35) of the internal combustion engine (10), the working liquid comprising a cooling liquid or a lubrication liquid; operating the internal combustion engine (10); engaging a thermal load responsive to the temperature of the liquid being below a first temperature threshold, wherein engaging the thermal load comprises at least one of increasing a pumping load of the internal combustion engine (10), or changing an air/fuel ratio, thereby adding heat to the engine block circuit (31, 35); controlling the thermal load as a function of the temperature of the liquid; and disengaging at least a portion of the thermal load responsive to the temperature of the liquid being above the low temperature limit.

    Charger peak power optimization for fleet depot

    公开(公告)号:US12233739B2

    公开(公告)日:2025-02-25

    申请号:US17246605

    申请日:2021-05-01

    Applicant: Cummins Inc.

    Abstract: A system for charging electric vehicles is disclosed, comprising: vehicle chargers coupled to an electric power grid; and a controller in communication with the chargers and vehicles and configured to execute software to cause the controller to: determine characteristics of each vehicle, the characteristics including a charge capacity of a battery system of each vehicle and a mission schedule; determine characteristics of each charger, the characteristics including a type of each charger and a charging capacity; process the characteristics of each vehicle and each charger to identify charging opportunities for each vehicle over the course of a time period; and perform a peak power optimization analysis to generate a vehicle charging profile configured to activate a minimum number of chargers simultaneously and to minimize downtimes of the plurality of chargers to thereby distribute the power demand from the electric power grid and result in an initial peak power demand.

    Systems and methods for diagnosing a thermostat

    公开(公告)号:US10294853B2

    公开(公告)日:2019-05-21

    申请号:US14871207

    申请日:2015-09-30

    Applicant: Cummins, Inc.

    Abstract: Systems and methods are disclosed for determining a temperature of a coolant in a cooling system for an engine and diagnosing a thermostat in the engine responsive to the determined temperature. The system and method includes interpreting engine heat data indicative of a first amount of heat introduced into the internal combustion engine; interpreting exhaust gas recirculation (EGR) heat data indicative of a second amount of heat introduced into the internal combustion engine via the amount of exhaust gas provided to the intake manifold; interpreting heat loss data indicative of an amount of heat loss experienced by the coolant; determining a temperature of the coolant based on the first amount of heat, the second amount of heat, and the amount of heat loss; comparing the determined temperature of the coolant to a sensed temperature of the coolant; and determining a status of the thermostat responsive to the comparison.

    SYSTEMS AND METHODS FOR DIAGNOSING A THERMOSTAT
    10.
    发明申请
    SYSTEMS AND METHODS FOR DIAGNOSING A THERMOSTAT 审中-公开
    用于诊断恒温器的系统和方法

    公开(公告)号:US20160326944A1

    公开(公告)日:2016-11-10

    申请号:US14871207

    申请日:2015-09-30

    Applicant: Cummins, Inc.

    Abstract: Systems and methods are disclosed for determining a temperature of a coolant in a cooling system for an engine and diagnosing a thermostat in the engine responsive to the determined temperature. The system and method includes interpreting engine heat data indicative of a first amount of heat introduced into the internal combustion engine; interpreting exhaust gas recirculation (EGR) heat data indicative of a second amount of heat introduced into the internal combustion engine via the amount of exhaust gas provided to the intake manifold; interpreting heat loss data indicative of an amount of heat loss experienced by the coolant; determining a temperature of the coolant based on the first amount of heat, the second amount of heat, and the amount of heat loss; comparing the determined temperature of the coolant to a sensed temperature of the coolant; and determining a status of the thermostat responsive to the comparison.

    Abstract translation: 公开了用于确定用于发动机的冷却系统中的冷却剂的温度并根据所确定的温度诊断发动机中的恒温器的系统和方法。 该系统和方法包括解释指示引入到内燃机中的第一热量的发动机热量数据; 解释排气再循环(EGR)热量数据,其指示经由设置到所述进气歧管的废气量引入所述内燃机的第二量的热; 解释指示冷却剂经历的热损失量的热损失数据; 基于第一热量,第二热量和热损失量来确定冷却剂的温度; 将确定的冷却剂温度与冷却剂的感测温度进行比较; 以及响应于所述比较来确定所述恒温器的状态。

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