US 2010/0301867 A1 · REGENERATION CAPACITY CONTROL METHOD FOR A BATTERY

Abstract

A method for controlling regeneration of a battery includes determining a scaled value for a state of charge of the battery, a scaled value for a battery temperature and a scaled value for a maximum charging power of the battery. An actual battery temperature is then compared with a predetermined operating temperature. When the actual battery temperature is less than the predetermined operating temperature, an actual regeneration amount is calculated based upon the scaled value for the state of charge of the battery and the scaled value for the battery temperature. When the actual battery temperature is greater than the predetermined operating temperature, the actual regeneration amount is based upon the scaled value for the state of charge of the battery, the scaled value for the battery temperature, and the scaled value for the maximum charging power of the battery.

Claims17

Dependent claims

A method for controlling regeneration of a battery for a vehicle having an electrically variable transmission comprising:

determining a scaled value for a state of charge of the battery, wherein the scaled value is proportional to an actual state of charge of the battery;
determining a scaled value for a battery temperature, wherein the scaled value is proportional to an actual battery temperature;
comparing the actual battery temperature with a predetermined operating temperature;
and
calculating an actual regeneration amount based upon the scaled value for the state of charge of the battery and the scaled value for the battery temperature, when the actual battery temperature is less than the predetermined operating temperature.

2 more elements

A method for controlling regeneration of a battery:

providing a requested regeneration amount;
determining a scaled value for a state of charge of the battery;
determining a scaled value for a temperature of the battery;
determining a scaled value for a maximum charging power of the battery;
comparing an actual battery temperature with a predetermined operating temperature;
calculating an actual regeneration amount based upon the scaled value for the state of charge of the battery, the scaled value for the battery temperature, and the requested regeneration amount, when the actual battery temperature is less than the predetermined operating temperature;
and
calculating the actual regeneration amount based upon the scaled value for the state of charge of the battery, the scaled value for the battery temperature, the scaled value for a maximum charging power of the battery, and the requested regeneration amount, when the actual battery temperature is greater than or equal to the predetermined operating temperature.

5 more elements

Dependencies are inferred from the claim text.

Regeneration capacity control method for a battery

Life of this patent

Regeneration capacity control method for a battery

Life of this patent

Abstract

Claims17