System and method for managing electrical power harnessed from electrically driven loads
AssigneeCaterpillar Paving Products Inc.
InventorNicholas Alan Oetken
Life of this patent
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Abstract
A method for managing electrical power harnessed from an electrically driven load includes detecting a deceleration event of the electrically driven load; determining a battery charge rate limit of a battery powering a first electric motor driving the electrically driven load; causing, in response to the battery charge rate limit, at least a first part of the electrical power to power a second electric motor during the deceleration event to accommodate a reduction of a charging rate of the battery from the electrical power to a reduced charging rate.
Claims20
A method for managing electrical power harnessed from an electrically driven load in a machine, the method comprising:
- detecting, by a control system, a deceleration event of the electrically driven load;
- determining, by the control system, a battery charge rate limit of a battery powering a first electric motor driving the electrically driven load;
- causing, by the control system, in response to the battery charge rate limit, at least a first part of the electrical power to power a second electric motor during the deceleration event to accommodate a reduction of a charging rate of the battery from the electrical power to a reduced charging rate.
A system for managing electrical power harnessed from an electrically driven load in a machine, the system comprising:
- an auxiliary electric motor to be operably coupled to a main electric motor powered by a battery to drive the electrically driven load;
- a control system configured to:
- detect a deceleration event of the electrically driven load;
- determine a battery charge rate limit of the battery;
- cause, in response to the battery charge rate limit, at least a first part of the electrical power to power the auxiliary electric motor during the deceleration event to accommodate a reduction of a charging rate of the battery from the electrical power to a reduced charging rate.
A machine, comprising:
- a battery;
- an electrically driven load to perform work;
- a main electric motor powered by the battery to drive the electrically driven load;
- a system for managing electrical power harnessed from the electrically driven load, the system including:
- an auxiliary electric motor operably coupled to the main electric motor;
- and
- a control system configured to:
- detect a deceleration event of the electrically driven load;
- determine a battery charge rate limit of the battery;
- cause, in response to the battery charge rate limit, at least a first part of the electrical power to power the auxiliary electric motor during the deceleration event to accommodate a reduction of a charging rate of the battery from the electrical power to a reduced charging rate.
Dependencies are inferred from the claim text.