Electric vehicle operation to manage battery capacity
First Claim
1. A method for controlling an electric vehicle having a battery to propel the vehicle to dynamically manage battery capacity, comprising:
- charging and discharging the battery to a battery target state of charge (SOC), the target SOC varying in response to at least a scheduled or predicted vehicle storage time and ambient temperature during scheduled or predicted vehicle storage time with actual SOC being a function of ambient temperature.
2 Assignments
0 Petitions
Accused Products
Abstract
Battery state of charge control systems and methods provide techniques to assist in managing battery capacity and battery life under various environmental, operating, and storage conditions. Dynamic management of desired battery SOC based on one or more parameters associated with usage patterns and environmental conditions, e.g., charge/discharge patterns, state of charge and/or temperature during storage may extend useful battery life. The present techniques can provide active state of charge monitoring and control to manage battery capacity during storage or other periods of non-use over the battery life to enhance battery performance.
-
Citations
20 Claims
-
1. A method for controlling an electric vehicle having a battery to propel the vehicle to dynamically manage battery capacity, comprising:
charging and discharging the battery to a battery target state of charge (SOC), the target SOC varying in response to at least a scheduled or predicted vehicle storage time and ambient temperature during scheduled or predicted vehicle storage time with actual SOC being a function of ambient temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A method, comprising:
-
storing vehicle usage patterns including at least a first vehicle usage pattern with long-term storage; and charging or discharging a vehicle battery based on a desired SOC from a stored state of charge (SOC) profile relating SOC to capacity of the vehicle batter, temperature for the first vehicle usage pattern, and sensed ambient temperature during vehicle storage, with the SOC being at least 90% when ambient temperature is less than 0°
C. - View Dependent Claims (10, 11, 12, 13)
-
-
14. A vehicle comprising:
-
a battery to power an electric motor to propel the vehicle, wherein the battery includes a state of charge (SOC); a memory storing a battery temperature, projected energy usage and storage time; and a processor operatively coupled to the memory, the processor controlling charging or discharging of the battery to an SOC storage point for the battery using the battery temperature, projected energy usage, ambient temperature during vehicle storage, and storage time to manage battery capacity during storage. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification