CN-121989715-A - Vehicle system and method for compensating for scheduled battery charging

CN121989715ACN 121989715 ACN121989715 ACN 121989715ACN-121989715-A

Abstract

A vehicle system and method for compensating for an arranged battery charge. A vehicle system includes a database and a control module. The control module is configured to determine a plurality of compensation factors for a plurality of planned charge power values, each compensation factor being determined based on the system weight and an error between the estimated energy provided for the charge time slot and the actual energy provided during the charge time slot for charging the battery in the vehicle, store in the database each of the plurality of compensation factors specific to one of the planned charge power values, select one of the stored compensation factors from the database based on a subsequent planned charge power value for charging the battery in the vehicle, and determine a duration of adjustment for charging the battery in the vehicle based on the selected compensation factor. Other example vehicle systems and control methods are also disclosed.

Inventors

C. C. Ross
P.G. Otanes

Assignees

通用汽车环球科技运作有限责任公司

Dates

Publication Date: 20260508
Application Date: 20241227
Priority Date: 20241101

Claims (10)

1. A vehicle system for improving a duration estimate of charging a battery in a vehicle based on a charging schedule including charging slots, each charging slot having an estimated duration and a corresponding planned charging power value, the vehicle system comprising: Database, and A control module in communication with the database, the control module configured to: Determining a plurality of compensation factors for a plurality of planned charging power values, each compensation factor being determined based on the system weight and an error between an estimated energy provided for a charging slot of the charging slots and an actual energy provided during the charging slot for charging a battery in the vehicle; storing each of a plurality of compensation factors specific to one of the planned charging power values in a database; Selecting one of the stored compensation factors from the database based on a subsequent planned charging power value for charging a battery in the vehicle, and The duration of the adjustment for charging the battery in the vehicle is determined based on the selected compensation factor.
2. The vehicle system of claim 1, further comprising a vehicle charge control module located in the vehicle and in communication with the control module, the vehicle charge control module configured to: scheduling a charging session of a battery in a vehicle based on the adjusted duration, and Charging of the battery is controlled in response to the scheduled charging session.
3. The vehicle system of claim 2, wherein the vehicle charge control module is configured to schedule the charging session based on the adjusted duration and the defined charge contention time of the battery.
4. The vehicle system of claim 2, wherein the vehicle charge control module is configured to schedule the charging session based on the adjusted duration and off-peak hours of the power system charging the battery.
5. The vehicle system of claim 1, further comprising a display module located in the vehicle and in communication with the control module, the display module configured to: Receiving an adjusted duration for charging a battery in a vehicle, and The duration of the adjustment is displayed.
6. The vehicle system of claim 5, further comprising a vehicle charge control module located in the vehicle, wherein: The display module is configured to display input selectable by a user to indicate approval of the adjusted duration, and The vehicle charge control module is configured to control charging of a battery in the vehicle in response to a user selecting an input indicating approval of the adjusted duration.
7. The vehicle system of claim 1, wherein the control module is configured to determine at least one of the compensation factors based on a previous compensation factor for the same planned charge power value.
8. The vehicle system of claim 1, wherein the control module is configured to: Determining an adjusted energy based on the estimated energy and the selected compensation factor, and An adjusted duration for charging a battery in the vehicle is determined based on the adjusted energy.
9. The vehicle system of claim 1, wherein the control module is configured to determine the system weight based on one or more conditions associated with charging a battery in the vehicle.
10. The vehicle system of claim 9, wherein the one or more conditions include at least one of a duration factor, an energy factor, a battery temperature factor, a battery state of health factor, a charge current type factor, and a charge location factor.

Description

Vehicle system and method for compensating for scheduled battery charging Introduction to the invention The information provided in this section is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure. The present disclosure relates to vehicle systems and methods for compensating for scheduled (scheduled) battery charging, and more particularly to vehicle systems and methods for battery charging based on a time slot (timeslot) energy compensation schedule. Electric Vehicles (EVs), such as pure EVs, plug-in hybrid EVs, and the like, include a battery system and one or more electric machines. The battery system is a rechargeable energy storage system that includes one or more high voltage battery packs, each having a set of battery cells. To charge the battery system, a charger plug is electrically coupled to a charging port of the EV via one or more connectors. In some cases, an estimated duration of charging the battery system may be provided. For example, when a user inserts a charger plug into a charging port and charging begins, the sensor may detect the current and voltage provided to the EV. Based on the current and voltage, power can be calculated. The duration may then be estimated using the calculated power and the known energy required to charge the battery system. In some scenarios, the duration estimate may be altered after the charging session is completed. Disclosure of Invention A vehicle system for improving a duration estimate of charging a battery in a vehicle based on a charging schedule (schedule) including charging slots is disclosed. Each charging slot has an estimated duration and a corresponding planned charging power (charge power) value. The vehicle system includes a database and a control module in communication with the database. The control module is configured to determine a plurality of compensation factors for a plurality of planned charge power values, each compensation factor being determined based on the system weight and an error between an estimated energy provided for a charge slot of the charge slots and an actual energy provided during the charge slot to charge a battery in the vehicle, store in the database each of the plurality of compensation factors specific to one of the planned charge power values, select one of the stored compensation factors from the database based on a subsequent planned charge power value for charging the battery in the vehicle, and determine a duration of adjustment for charging the battery in the vehicle based on the selected compensation factor. In other features, the vehicle system further includes a vehicle charge control module located in the vehicle and in communication with the control module. The vehicle charge control module is configured to schedule a charge session for a battery in the vehicle based on the adjusted duration and to control charging of the battery in response to the scheduled charge session. In other features, the vehicle charge control module is configured to schedule the charging session based on the adjusted duration and a defined charge contention time of the battery. In other features, the vehicle charging control module is configured to schedule the charging session based on an adjusted duration and off-peak (off-peak) hours of the power system charging the battery. In other features, the vehicle system further includes a display module located in the vehicle and in communication with the control module. The display module is configured to receive an adjusted duration for charging a battery in the vehicle and display the adjusted duration. In other features, the vehicle system further includes a vehicle charge control module located in the vehicle. The display module is configured to display an input selectable by a user to indicate approval of the adjusted duration. The vehicle charge control module is configured to control charging of a battery in the vehicle in response to a user selecting an input indicating approval of the adjusted duration. In other features, the control module is configured to determine the at least one compensation factor based on previous compensation factors of the same planned charging power value. In other features, the control module is configured to determine an adjusted energy based on the estimated energy and the selected compensation factor, and determine an adjusted duration for charging a battery in the vehicle based on the adjusted energy. In other features, the control module is configured to determine the system weight based on one or more conditions associated with charging a battery in the vehicle. In other features, the one or more conditions include at least one of a duration