Abstract: A vehicle system includes a battery, and a charge controller configured to, for a first cycle, initiate charging of the battery at a first start time identified from a defined charge complete time and a first energy estimate of non-charging loads, and, for a next charge cycle and same defined charge complete time, initiate charging of the battery at a next start time, later than the first start time, identified from the same defined charge complete time and actual energy consumed by the non-charging loads during the first cycle.

Abstract: A vehicle includes a traction battery; a bus; a main contactor between the traction battery and bus; a precharge contactor between the traction battery and bus in parallel with the main contactor; and a controller configured to, responsive to a first precharge mode signal, command a charging station to increase a voltage on the bus and subsequently close the precharge contactor before closing the main contactor, and responsive to a second precharge mode signal, close the precharge contactor without first commanding the charging station to increase the voltage on the bus before closing the main contactor.

Abstract: A vehicle includes a contactor electrically between a charge port and a traction battery, and a controller configured to maintain the contactor in a closed position until a charge current estimate, derived from vehicle load data without sensing current through the contactor or receiving data from a charge station regarding the current, is less than a predetermined threshold. The maintenance of the contactor position is responsive to a charge disconnect request.

Abstract: A system includes a primary monitoring system to determine a battery status of a battery pack and a secondary monitoring system configured to monitor the battery status as communicated by the primary monitoring system over a network. At least one of the primary and secondary monitoring systems generates a warning signal when the battery status comprises a thermal event that reaches a predetermined level.

Abstract: An electrified vehicle includes a global positioning system (GPS) module. The vehicle further includes a controller programmed to learn a source identification for a charging error during charge events. The controller receives location data corresponding to each charging error and utilizes the location data to determine the source identification. The source identification may be indicative of the vehicle, an offboard charger, and the operator. Errors that occur consistently at multiple locations may be assigned a higher probability of being identified as vehicle-related errors.

Abstract: A vehicle charging system includes a charger configured to adjust an output voltage to achieve a voltage request and output a measured output voltage. The vehicle charging system further includes a controller programmed to measure a terminal voltage of a traction battery being charged and receive the measured output voltage from the charger. The controller is further programmed to output the voltage request as a sum of a full charge voltage and an estimated voltage measurement error between the measured output voltage and the terminal voltage.

Abstract: This disclosure describes exemplary electrified vehicle charging systems and methods for charging energy storage devices (e.g., battery packs) of the vehicles. An exemplary charging system may be configured to monitor the electrified vehicle for determining whether either a recoverable vehicle fault or a non-recoverable vehicle fault occurs during a charging event and to automatically command a charging sequence restart without unplugging a charging component from a vehicle inlet assembly in response to detecting the recoverable vehicle fault. The control system may also be configured to provide remote notification about the need to unplug and replug the charging component when the non-recoverable fault is detected or when greater than a predefined number of charging sequence restarts have been attempted.

Abstract: A vehicle includes a traction battery; a bus; a main contactor between the traction battery and bus; a precharge contactor between the traction battery and bus in parallel with the main contactor; and a controller configured to, responsive to a first precharge mode signal, command a charging station to increase a voltage on the bus and subsequently close the precharge contactor before closing the main contactor, and responsive to a second precharge mode signal, close the precharge contactor without first commanding the charging station to increase the voltage on the bus before closing the main contactor.

Abstract: A hybrid electric vehicle (HEV) that includes a communication unit configured to periodically respond to a charge signal, and to adjust a travel route and charge waypoint, according to an estimated charge station travel route and waypoint charge time received from a remote fleet server. The estimates are received in response to periodic operating conditions that are generated and communicated to the server. The operating conditions include one or more of charge station, environment, and location data, vehicle data, and battery performance data, among other data. The controller further configured to respond to travel route and/or charge complete signals, and to generate and store an estimate error as a difference between the actual and estimated optimal charge route and charge time. The controller readjusts at least one of the travel route and charge waypoint, responsive to the updated estimated optimal charge route and waypoint charge time received from the server.

Abstract: This disclosure describes exemplary electrified vehicle charging systems and methods for charging energy storage devices (e.g., battery packs) of the vehicles. An exemplary charging system may be configured to monitor the electrified vehicle for determining whether either a recoverable vehicle fault or a non-recoverable vehicle fault occurs during a charging event and to automatically command a charging sequence restart without unplugging a charging component from a vehicle inlet assembly in response to detecting the recoverable vehicle fault. The control system may also be configured to provide remote notification about the need to unplug and replug the charging component when the non-recoverable fault is detected or when greater than a predefined number of charging sequence restarts have been attempted.

Abstract: A system includes a primary monitoring system to determine a battery status of a battery pack and a secondary monitoring system configured to monitor the battery status as communicated by the primary monitoring system over a network. At least one of the primary and secondary monitoring systems generates a warning signal when the battery status comprises a thermal event that reaches a predetermined level.

Abstract: An electrified vehicle includes a global positioning system (GPS) module. The vehicle further includes a controller programmed to learn a source identification for a charging error during charge events. The controller receives location data corresponding to each charging error and utilizes the location data to determine the source identification. The source identification may be indicative of the vehicle, an offboard charger, and the operator. Errors that occur consistently at multiple locations may be assigned a higher probability of being identified as vehicle-related errors.

Abstract: A vehicle system includes a battery, and a charge controller configured to, for a first cycle, initiate charging of the battery at a first start time identified from a defined charge complete time and a first energy estimate of non-charging loads, and, for a next charge cycle and same defined charge complete time, initiate charging of the battery at a next start time, later than the first start time, identified from the same defined charge complete time and actual energy consumed by the non-charging loads during the first cycle.

Abstract: A hybrid electric vehicle (HEV) and method of operation, which include a battery and a communication unit, which are configured to periodically respond to a charge signal, and to adjust a charge time and battery recharge profile, according to a charge time estimate received from a remote fleet server. The charge time estimate is received in response to periodic operating conditions that are generated and communicated to the server. The operating conditions include one or more of charge station, environment, and location data, vehicle data, and battery performance data, among other data. The controller further configured to respond to a charge complete signal, and to generate and store as one of the battery performance parameters, an estimate error as a difference between the charge time estimate and an actual charge time. The controller readjusts a charge time and battery recharge profile, responsive to the estimate error.

Abstract: A vehicle charging system includes a charger configured to adjust an output voltage to achieve a voltage request and output a measured output voltage. The vehicle charging system further includes a controller programmed to measure a terminal voltage of a traction battery being charged and receive the measured output voltage from the charger. The controller is further programmed to output the voltage request as a sum of a full charge voltage and an estimated voltage measurement error between the measured output voltage and the terminal voltage.

Abstract: A vehicle includes a contactor electrically between a charge port and a traction battery, and a controller configured to maintain the contactor in a closed position until a charge current estimate, derived from vehicle load data without sensing current through the contactor or receiving data from a charge station regarding the current, is less than a predetermined threshold. The maintenance of the contactor position is responsive to a charge disconnect request.

Abstract: A hybrid electric vehicle (HEV) that includes a communication unit configured to periodically respond to a charge signal, and to adjust a travel route and charge waypoint, according to an estimated charge station travel route and waypoint charge time received from a remote fleet server. The estimates are received in response to periodic operating conditions that are generated and communicated to the server. The operating conditions include one or more of charge station, environment, and location data, vehicle data, and battery performance data, among other data. The controller further configured to respond to travel route and/or charge complete signals, and to generate and store an estimate error as a difference between the actual and estimated optimal charge route and charge time. The controller readjusts at least one of the travel route and charge waypoint, responsive to the updated estimated optimal charge route and waypoint charge time received from the server.

Abstract: A hybrid electric vehicle (HEV) and method of operation, which include a battery and a communication unit, which are configured to periodically respond to a charge signal, and to adjust a charge time and battery recharge profile, according to a charge time estimate received from a remote fleet server. The charge time estimate is received in response to periodic operating conditions that are generated and communicated to the server. The operating conditions include one or more of charge station, environment, and location data, vehicle data, and battery performance data, among other data. The controller further configured to respond to a charge complete signal, and to generate and store as one of the battery performance parameters, an estimate error as a difference between the charge time estimate and an actual charge time. The controller readjusts a charge time and battery recharge profile, responsive to the estimate error.