System and method for determining battery capacity in an electric vehicle
First Claim
1. A hybrid-electric vehicle, comprising:
- an electric propulsion system for propelling the vehicle;
and a gas powered engine/generator for propelling the vehicle;
a controller adapted to cause a battery to be discharged and charged to determine a capacity value of the battery in response to receiving an instruction while the vehicle is parked;
a plurality of accessories coupled to the controller and configured to activate to discharge the battery to a first charge level and then deactivate responsive to the controller; and
the gas engine/generator being responsive to the controller to charge the battery after the first charge level is reached;
wherein the controller determines and stores the capacity value of the battery.
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Accused Products
Abstract
In accordance with exemplary embodiments, battery capacity of an electric vehicle can be automatically determined. In an exemplary method, an instruction is received to determine a battery capacity value and one or more vehicle accessories are activated to discharge the battery to a first charge level. When the first charge level is reached, a generator in the vehicle is started and used to charge the battery to a second charge level, after which the battery capacity value can be determined and stored. In accordance with the exemplary embodiments, the vehicle comprises a controller adapted to cause a battery to be discharged and charged to determine a capacity value of the battery. A plurality of accessories are configured to activate and deactivate responsive to the controller to discharge the battery, while a generator is responsive to the controller to charge the battery so that the controller can determine the battery capacity value.
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Citations
2 Claims
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1. A hybrid-electric vehicle, comprising:
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an electric propulsion system for propelling the vehicle; and a gas powered engine/generator for propelling the vehicle; a controller adapted to cause a battery to be discharged and charged to determine a capacity value of the battery in response to receiving an instruction while the vehicle is parked; a plurality of accessories coupled to the controller and configured to activate to discharge the battery to a first charge level and then deactivate responsive to the controller; and the gas engine/generator being responsive to the controller to charge the battery after the first charge level is reached; wherein the controller determines and stores the capacity value of the battery. - View Dependent Claims (2)
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Specification