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公开(公告)号：US10044297B2
公开(公告)日：2018-08-07
申请号：US15358179
申请日：2016-11-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Rajeev Vyas , Fausto Eleazar Vazquez Flores , Mark J. Rychlinski , Varsha Sadekar
Abstract: A vehicle including a cooling fan that is rotatably coupled to an electric motor that is electrically powered by a DC power source via an inverter is described. A method for controlling the cooling fan includes monitoring, via a first controller, a vehicle speed, and selecting a preferred operating state for the electric motor based upon the vehicle speed. The preferred operating state includes one of a first command associated with controlling the cooling fan to force air through the cooling system, a second command associated with a fan brake request, and a third command associated with an energy recovery mode. A discrete message from the first controller is communicated to an inverter controller, wherein the discrete message is based upon the preferred operating state for the electric motor. The inverter controller controls the inverter to control the electric motor in response to the discrete message.
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公开(公告)号：US20170361824A1
公开(公告)日：2017-12-21
申请号：US15595277
申请日：2017-05-15
Applicant: GM Global Technology Operations LLC
Inventor： Michael D. Rizzo , Mark J. Rychlinski , Paul S. Shaub , Anthony J. Rifici , Phanu Amatyakul
IPC: B60T13/74 , B60T13/12 , B60T8/32 , B60T8/1761 , B60T7/04
CPC classification number: B60T8/17558 , B60R16/03 , B60T7/042 , B60T7/12 , B60T7/22 , B60T8/17616 , B60T8/3255 , B60T8/3265 , B60T13/12 , B60T13/662 , B60T13/745 , B60T13/746 , B60T2201/022 , B60T2201/03
Abstract: A vehicle includes at least one brake assembly configured to brake at least one wheel of the vehicle in response to an applied voltage. A power supply is in signal communication with the at least one brake assembly. The power supply is configured to operate in a first mode that outputs a first voltage and a second mode that outputs a second voltage greater than the first voltage. A brake control system is in signal communication with the at least one brake assembly and the power supply. The brake control system is configured to determine a driving state of the vehicle, and is configured to output a brake boost request signal to initiate the second mode of the power supply in response to detecting the driving state, wherein a braking response time of the at least one brake assembly is improved in response to applying the second voltage.
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3.发明申请公开(公告)号：US20170300313A1
公开(公告)日：2017-10-19
申请号：US15098650
申请日：2016-04-14
Applicant: GM Global Technology Operations LLC
Inventor： Gary W. Gantt, JR. , Mark J. Rychlinski , Varsha Sadekar , David W. Walters
Abstract: A method and system for downloading and installing software to a vehicle that includes a battery and vehicle electronics. The system includes a vehicle communications device that receives an anticipatory signal indicating that software is ready or will be ready for wireless download to the vehicle. In response to the anticipatory signal, the method and system determine whether the vehicle is in a state and/or the battery has enough energy for wireless download of the software package, installation of the software, or both. If the vehicle is not in such a state or the battery does not have the requisite energy, then changes to battery charging parameters may be made in preparation of the software download and/or installation.
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公开(公告)号：US20170144666A1
公开(公告)日：2017-05-25
申请号：US14946084
申请日：2015-11-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jakob Yonan , Gary W. Gantt, JR. , Varsha Sadekar , Mark J. Rychlinski
IPC: B60W30/182 , B60W40/02 , F02N11/08
CPC classification number: B60W30/182 , B60W40/02 , F02D2041/1412 , F02D2200/0414 , F02D2200/0416 , F02N11/0803 , F02N11/0814 , F02N11/0825 , F02N11/0862 , F02N2200/061 , F02N2200/122 , F02N2200/123 , Y02T10/48
Abstract: A method and system are provided for controlling a vehicle capable of operating in a fuel economy mode in which fuel is conserved by limiting operation of an engine. The method includes obtaining forecast temperatures for one or more dates and comparing the forecast temperature for each date to a threshold temperature. The method further includes generating a control signal if the forecast temperature for a given date meets a predetermined condition relative to the threshold temperature. The control signal is configured to disable fuel economy mode of the vehicle. The method further includes disabling the fuel economy mode of the vehicle in response to receiving the control signal. By disabling fuel economy mode at selected temperatures, the method and system allow the vehicle to preserve a sufficient state of charge in the vehicle battery for cold starts.
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公开(公告)号：US09951704B2
公开(公告)日：2018-04-24
申请号：US14847499
申请日：2015-09-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jakob Yonan , Mark J. Rychlinski , Gary W. Gantt, Jr. , Varsha K. Sadekar
CPC classification number: F02D41/22 , F02N11/0848 , F02N11/108 , F02N2200/044 , G01M15/04 , G01M15/06 , G01M17/007 , G07C5/008 , G07C5/0808
Abstract: Methods and systems for monitoring no start events for vehicles are provided. In accordance with one embodiment, a vehicle includes an engine, a sensing unit, a processor, and a transmitter. The sensing unit is configured to measure one or more parameter values for a vehicle after a request has been made to start the engine. The processor is coupled to the sensing unit, and configured to determine when a no start event has occurred for the vehicle using the one or more parameter values. The transmitter is coupled to the processor, and is configured to transmit, to a remote server, a no start event history for the vehicle based on the determining by the processor.
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Patent Agency Ranking
公开(公告)号：US09902400B2
公开(公告)日：2018-02-27
申请号：US14946084
申请日：2015-11-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jakob Yonan , Gary W. Gantt, Jr. , Varsha Sadekar , Mark J. Rychlinski
IPC: B60W30/182 , B60W40/02 , F02N11/08 , F02D41/14
CPC classification number: B60W30/182 , B60W40/02 , F02D2041/1412 , F02D2200/0414 , F02D2200/0416 , F02N11/0803 , F02N11/0814 , F02N11/0825 , F02N11/0862 , F02N2200/061 , F02N2200/122 , F02N2200/123 , Y02T10/48
Abstract: A method and system are provided for controlling a vehicle capable of operating in a fuel economy mode in which fuel is conserved by limiting operation of an engine. The method includes obtaining forecast temperatures for one or more dates and comparing the forecast temperature for each date to a threshold temperature. The method further includes generating a control signal if the forecast temperature for a given date meets a predetermined condition relative to the threshold temperature. The control signal is configured to disable fuel economy mode of the vehicle. The method further includes disabling the fuel economy mode of the vehicle in response to receiving the control signal. By disabling fuel economy mode at selected temperatures, the method and system allow the vehicle to preserve a sufficient state of charge in the vehicle battery for cold starts.
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公开(公告)号：US20170146611A1
公开(公告)日：2017-05-25
申请号：US14948741
申请日：2015-11-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jakob Yonan , Varsha Sadekar , Mark J. Rychlinski
CPC classification number: G01R31/3693 , G01R31/3627 , H01M10/06 , H01M10/42 , H01M10/48 , H01M2220/20 , Y02E60/126
Abstract: A method and system for diagnosing battery system problems in a vehicle, where the method distinguishes between problems of various battery system components. More particularly, battery connection problems such as loose connections, corroded battery terminals, etc., may be distinguished from battery system problems as a whole. Load related readings that generally reflect the performance of the battery system during a cranking event and one or more non-load related readings may be gathered and used to determine whether there is a battery system problem and whether there is a battery specific problem. If load related readings and/or non-load related readings fail to indicate a battery specific problem, a battery connection problem may be diagnosed.
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公开(公告)号：US10343660B2
公开(公告)日：2019-07-09
申请号：US15595277
申请日：2017-05-15
Applicant: GM Global Technology Operations LLC
Inventor： Michael D. Rizzo , Mark J. Rychlinski , Paul S. Shaub , Anthony J. Rifici , Phanu Amatyakul
IPC: B60T8/1755 , B60T7/12 , B60R16/03 , B60T7/04 , B60T8/1761 , B60T8/32 , B60T13/12 , B60T13/74 , B60T7/22 , B60T13/66
Abstract: A vehicle includes at least one brake assembly configured to brake at least one wheel of the vehicle in response to an applied voltage. A power supply is in signal communication with the at least one brake assembly. The power supply is configured to operate in a first mode that outputs a first voltage and a second mode that outputs a second voltage greater than the first voltage. A brake control system is in signal communication with the at least one brake assembly and the power supply. The brake control system is configured to determine a driving state of the vehicle, and is configured to output a brake boost request signal to initiate the second mode of the power supply in response to detecting the driving state, wherein a braking response time of the at least one brake assembly is improved in response to applying the second voltage.
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公开(公告)号：US10042006B2
公开(公告)日：2018-08-07
申请号：US14301944
申请日：2014-06-11
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Yilu Zhang , Mark J. Rychlinski
IPC: G01R31/36
Abstract: A number of illustrative variations may include a method of estimating battery health including using a charging resistance equivalent.
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公开(公告)号：US09973134B1
公开(公告)日：2018-05-15
申请号：US15451898
申请日：2017-03-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Rajeev Vyas , Suresh Gopalakrishnan , Mark J. Rychlinski , Markus Demmerle , Varsha K. Sadekar
IPC: G05B5/00 , H02H7/08 , H02P1/04 , H02P3/00 , H02P7/00 , H02P29/024 , H02P27/06 , H02P6/08 , B60L11/18 , B60L3/00
CPC classification number: H02P29/027 , B60L3/0046 , B60L3/0076 , B60L7/18 , B60L7/22 , B60L11/1861 , B60L2240/547 , B60L2240/549 , H02P6/08 , H02P27/06
Abstract: An electrical system includes a direct current (DC) voltage bus, a power supply providing a supply voltage to the DC voltage bus, an electric machine connected to the power supply, a reverse current protection (RCP) circuit positioned between the power supply and the electric machine, the RCP circuit including an energy dissipating element, and a controller. As part of an associated method, the controller detects a reverse current condition in which a current flows from the electric machine toward the power supply when an induced voltage of the electric machine exceeds a voltage level of the voltage bus. The controller transmits a control signal to the RCP circuit to direct the electrical current through the energy dissipating element for a duration of the reverse current condition or for a predetermined duration equal to or greater than that of the reverse current condition.
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