48V electrically heated catalyst system for a vehicle
AssigneeVitesco Technologies USA, LLC
InventorsBenjamin Bargman, Brian J. McKay, Abhid Akram Abubeckar Mohamed Sahul
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Abstract
A method is provided for powering a 48V electrically heated catalyst of a catalytic converter of a vehicle without using a 48V battery. The method provides a 12V battery. An electrical energy storage device is electrically connected between the electrically heated catalyst and the 12V battery. The electrical energy storage device is charged by the 12V battery so as to store a voltage of 12V that can then be switched to 48V. The electrically heated catalyst is powered with 48V supplied by the charged electrical energy storage device. A system for performing the method is also disclosed.
Claims19
A system comprising:
- an electrically heated catalyst constructed and arranged to be powered by 48V,
- a 12V battery, and
- an electrical energy storage device, electrically connected between the electrically heated catalyst and the 12V battery, constructed and arranged to 1) be charged by the 12V battery to store voltage, and 2) to power the electrically heated catalyst with 48V.
A system comprising:
- a vehicle catalytic converter having an electrically heated catalyst constructed and arranged to be powered by 48V,
- a 12V battery, and
- an electrical energy storage device, electrically connected between the electrically heated catalyst and the 12V battery, constructed and arranged to 1) be charged by the 12V battery to store voltage, and 2) to power the electrically heated catalyst with 48V.
A method for powering a 48V electrically heated catalyst of a catalytic converter of a vehicle without using a 48V battery, the method comprising the steps of:
- providing a 12V battery,
- electrically connecting an electrical energy storage device between the electrically heated catalyst and the 12V battery,
- charging the electrical energy storage device by the 12V battery so as to store voltage, and
- switching the charged electrical energy storage device to 48V to power the 48V electrically heated catalyst.
Dependencies are inferred from the claim text.