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US 11,891,777 B2Granted
Electric braking power used for battery regeneration in a mobile work machine
AssigneeDeere & Company
InventorsEric Vilar, Joseph E. Lukaszewski
Life of this patent
Estimating the term…
Abstract
The available power surge capacity of a battery is detected. The available steady state regeneration energy capacity of the battery is also detected. The available battery generation power, available from an electric motor, is detected as well. The generation power available from the electric motor is applied to regenerate (or recharge) the battery based upon the available power surge capacity, and the available steady state capacity of the battery.
Claims20
A mobile work machine, comprising:
- a ground engaging element;
- an electric motor that drives the ground engaging element;
- a battery having a steady state regeneration energy capacity defining a first rate at which the battery can continuously receive regeneration energy, generated by the electric motor, and a power surge capacity defining a second rate at which the battery can temporarily receive regeneration energy, generated by the electric motor, the second rate greater than the first rate;
- and
- a charging control system that controls the application of regeneration energy, generated by the electric motor, to the battery based on a detected power surge capacity indicator, indicative of the power surge capacity of the battery.
2 more elements
A method of controlling a mobile work machine, comprising:
- initiating an electric motor that is powered by a battery to drive a set of ground engaging elements, the battery having a steady state regeneration energy capacity defining a first rate at which the battery can continuously receive regeneration energy, generated by the electric motor, and a power surge capacity defining a second rate at which the battery can temporarily receive regeneration energy, generated by the electric motor, the second rate greater than the first rate;
- detecting a variable indicative of the power surge capacity of the battery;
- generating, a power surge capacity indicator indicative of the power surge capacity of the battery based on the detected variable;
- and
- controlling application of regeneration energy, generated by the electric motor, to the battery, based on the power surge capacity indicator.
2 more elements
A mobile work machine, comprising:
- a ground engaging element;
- a battery having a steady state regeneration energy capacity defining a first rate at which the battery can continuously receive regeneration energy, generated by the electric motor, and a power surge capacity defining a second rate at which the battery can temporarily receive regeneration energy, generated by the electric motor, the second rate greater than the first rate;
- an electric motor that drives the ground engaging element;
- a transmission, the motor driving the ground engaging element through the transmission;
- a surge capacity detector that detects a variable indicative of the power surge capacity of the battery and generates a surge energy capacity indicator based on the detected variable;
- and
- a charging control system that controls the application of regeneration energy, generated by the electric motor, to the battery based on the power surge capacity indicator.
4 more elements
Dependencies are inferred from the claim text.