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公开(公告)号：US11780438B1
公开(公告)日：2023-10-10
申请号：US17899869
申请日：2022-08-31
发明人： Mark Eifert , Pankaj Kumar
CPC分类号： B60W30/18072 , B60W20/10 , F02N11/084 , F02N11/0862 , B60W2510/242 , B60W2710/06 , F02N2200/063
摘要： A motor vehicle having a combustion engine for vehicle propulsion can be automatically stopped when engine propulsion is not needed, such as during a gliding condition when the vehicle is coasting down to a slower speed (e.g., stopping) or down an incline. The engine is automatically restarted as needed. To ensure a capacity of a battery or other electrical storage device to support nominal operation of electrical loads (including a starter motor for restarting the engine) during an Auto Stop event, predicted future states of a vehicle battery are determined using a battery state of function (SOF) in response to load transients that may need to be supported.
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公开(公告)号：US20220371531A1
公开(公告)日：2022-11-24
申请号：US17326749
申请日：2021-05-21
发明人： Mark Eifert , Pankaj Kumar , Timothy Panagis , Peter Phung
IPC分类号： B60R16/033 , B60W10/18 , B60W10/20 , H02J7/00
摘要： A method for controlling a vehicle active chassis power system includes determining, via a processor, a minimum output voltage/current threshold for an aggregated power supply associated with an active chassis operation, and generating an aggregate State of Function (SoF) indicative of a maximum voltage/current budget for an output of the vehicle active chassis power system. The aggregate SoF is based on a primary power source voltage/current output and a power storage voltage/current output. The method further includes causing to control an active chassis power system actuator based on a minimum voltage/current value associated with the aggregate SoF. Causing to control the active chassis power system actuator can include publishing the aggregate SoF to a braking actuator, a steering actuator, or to a domain controller that actively distributes an aggregated power supply capability SoF to a braking actuator and a steering actuator based on one or more present vehicle states.
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公开(公告)号：US10381692B2
公开(公告)日：2019-08-13
申请号：US14874143
申请日：2015-10-02
发明人： Mark Eifert , Eckhard Karden
摘要： The disclosure relates to a method for monitoring the state of a battery. In the process, the internal temperature of the battery during a charging process is determined in defined intervals at different time points, and an evaluation unit continuously determines a temperature gradient at least from the temperature values. At least one limit value for the temperature gradient is stored in the evaluation unit, and the evaluation unit generates a signal when the temperature gradient which is determined by the evaluation unit reaches this limit value. When this signal from the evaluation unit is present, the charging voltage of the battery is driven such that there is no battery current, while the internal temperature of the battery is further periodically detected, and the evaluation unit generates an alarm signal when the temperature has fallen after suppression of the battery current.
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公开(公告)号：US10293703B2
公开(公告)日：2019-05-21
申请号：US14919997
申请日：2015-10-22
发明人： Mark Eifert , Eckhard Karden
摘要： A method for controlling a voltage source is used to charge a battery of a motor vehicle, wherein the desired voltage value of the voltage source is selected and controlled. The method changes between at least two charging modes at planned time intervals, wherein a first charging mode applies a different desired voltage value for charging the battery than a second charging mode. In particular, the two charging modes are a process of equalization charging the battery and a process of float charging the battery.
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公开(公告)号：US10126372B2
公开(公告)日：2018-11-13
申请号：US14919982
申请日：2015-10-22
发明人： Mark Eifert , Eckhard Karden
摘要： An internal temperature of a battery is determined at defined intervals at different moments in time and is transmitted to an evaluation unit, which continuously determines a temperature gradient at least from the temperature values by dividing the temperature change in an interval by the time change in this interval. At least one limit value for the temperature gradient is stored in the evaluation unit, and the evaluation unit generates an alarm signal when the temperature gradient determined by the evaluation unit reaches this limit value.
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公开(公告)号：US09744857B2
公开(公告)日：2017-08-29
申请号：US14711529
申请日：2015-05-13
发明人： Mark Eifert , Peter Schmitz
CPC分类号： B60L1/00 , B60L3/00 , B60L11/18 , B60L11/1809 , B60L11/1816 , B60L11/1862 , B60L11/1868 , H02J7/00 , H02J7/1423 , H02J7/34 , Y02T10/7016 , Y02T10/7044 , Y02T10/7066 , Y02T10/7072 , Y02T90/14
摘要： A system and method for charging a vehicle having a first battery, such as a high-voltage traction battery, and a second battery, such as a low-voltage battery, include controlling a DC converter or relay to effectively decouple the second battery from the converter when the vehicle is connected to an external power source to reduce or prevent damage to the second battery from extended or prolonged charging. The second battery may be effectively decoupled from the converter by controlling the relay or converter voltage based on state of charge of the second battery so that substantially zero current flows to and from the second battery relative to the converter and any vehicle low voltage consumers/accessories.
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公开(公告)号：US20230234550A1
公开(公告)日：2023-07-27
申请号：US17585756
申请日：2022-01-27
发明人： Mark Eifert , Pankaj Kumar , Matthew Loiselle , Timothy Rampiaray
IPC分类号： B60W10/26 , G01R31/367
CPC分类号： B60W10/26 , G01R31/367 , H02J7/0063
摘要： Responsive to data being indicative of conditions that will decrease a life of a battery to the extent the life expectancy will be less than a target value with a confidence that exceeds a first threshold, a processor may generate an alert or mitigation recommendations. Responsive to data being indicative of the cause of conditions that result in the life expectancy to be less than a target value with a confidence that exceeds a second threshold, the processor may implement a control strategy or set of control strategies to benefit the life expectancy of the battery.
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公开(公告)号：US11697383B2
公开(公告)日：2023-07-11
申请号：US17326749
申请日：2021-05-21
发明人： Mark Eifert , Pankaj Kumar , Timothy Panagis , Peter Phung
CPC分类号： B60R16/033 , B60W10/18 , B60W10/20 , H02J7/0047 , B60W10/26 , B60W10/28 , B60W2510/0208 , B60W2510/1005 , B60W2510/244 , B60W2710/18 , B60W2710/20
摘要： A method for controlling a vehicle active chassis power system includes determining, via a processor, a minimum output voltage/current threshold for an aggregated power supply associated with an active chassis operation, and generating an aggregate State of Function (SoF) indicative of a maximum voltage/current budget for an output of the vehicle active chassis power system. The aggregate SoF is based on a primary power source voltage/current output and a power storage voltage/current output. The method further includes causing to control an active chassis power system actuator based on a minimum voltage/current value associated with the aggregate SoF. Causing to control the active chassis power system actuator can include publishing the aggregate SoF to a braking actuator, a steering actuator, or to a domain controller that actively distributes an aggregated power supply capability SoF to a braking actuator and a steering actuator based on one or more present vehicle states.
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公开(公告)号：US10513194B2
公开(公告)日：2019-12-24
申请号：US16105191
申请日：2018-08-20
发明人： Mark Eifert , Eckhard Karden
摘要： A method for charging the starter battery of a motor vehicle at a voltage source includes charging the starter battery after a traction battery of the vehicle has been charged up to a defined value. The starter battery is charged if a charge state of the starter battery is established that is below a defined threshold value. If the charge state of the starter battery is of such a low level, the starter battery is charged until one or more defined termination conditions are fulfilled. The termination conditions may include the total charging period since the low charge state of the starter battery has been established exceeds a defined threshold value and/or the total time period charging the traction battery and the starter battery at the voltage source exceeds a defined threshold.
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10.发明授权公开(公告)号：US10384628B2
公开(公告)日：2019-08-20
申请号：US15663383
申请日：2017-07-28
发明人： Bjoern Mohrmann , Armin Warm , Peter Schmitz , Manuel Bojahr , Engbert Spijker , Mark Eifert
摘要： Methods and systems are provided for an on-board electrical system for a motor vehicle that includes one or more power sources and an electrical subsystem with a switch that can be actuated to selectively bypass a DC/DC converter and a storage device, responsive to electrical parameters such as the power demand of high-power consumers. In one example, when high-power consumers have low and constant power requirements, the switch may be positioned to bridge the DC/DC converter and storage device. Further, the method includes selectively controlling the power source in order to meet peak power demands with the power source operating at the greatest efficiency for the given operating conditions.
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