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US 7,621,262 B2Granted
Hybrid thermal energy conversion for HCCI heated intake charge system
AssigneeFord Global Technologies, LLC
InventorMichael W. Zubeck
Life of this patent
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Abstract
A method of operating an internal combustion engine coupled in a hybrid powertrain, the method comprising of extracting waste energy from a component of an electrical power system of the hybrid powertrain, and adjusting intake air temperature during homogeneous charge compression ignition operation of the engine by using said extracted waste energy.
Claims12
A method of operating an internal combustion engine coupled in a hybrid powertrain, comprising:
- extracting thermal and electrical waste energy from components of an electrical power system of the hybrid powertrain;
- and
- during HCCI operation:
- adjusting intake air temperature of the engine by coordinating said waste energy extraction, the coordination including, when a battery is fully charged, first using the extracted electrical waste energy to power an electrical heater in an engine intake.
1 more element
An intake thermal management system for a hybrid charge compression ignition electric vehicle for adjusting engine intake air temperature, comprising:
- an electrical power system for a hybrid powertrain;
- a battery;
- an electrical heater for heating engine intake air;
- a heat exchanger device for extracting thermal waste energy of the electrical power system for heating the engine intake air;
- a regenerative braking system;
- and
- a control unit for coordinating, during HCCI operation, electrical and thermal waste energy extraction of the heat exchanger and the regenerative braking system, the coordination including, when the battery is fully charged, first using extracted electrical waste energy from the regenerative braking system to power the electrical heater.
4 more elements
Dependencies are inferred from the claim text.