Method for operating a heated catalytic converter, and heated-catalytic-converter control system
AssigneeVitesco Technologies GmbH
InventorRainer Knorr
Life of this patent
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Abstract
A method for controlling an electrically heatable catalytic converter that is supplied, by a starter generator, with an output power belonging to the starter generator, wherein the output power of the starter generator is increased by a PWM method, wherein the eCAT monitors an on-board electrical system supply voltage that arises on account of the increase in the output power, the eCAT is activated if the on-board electrical system supply voltage exceeds an upper threshold value, and the eCAT is deactivated if the on-board electrical system supply voltage falls below a lower threshold value.
Claims14
A method for controlling an electrically heatable catalytic converter that is supplied, by a starter generator, with an electrical output power belonging to the starter generator, the method comprising:
- increasing the output power of the starter generator by a PWM method,
- monitoring, by the eCAT, an on-board electrical system supply voltage that arises on account of the increase in the output power of the starter generator,
- activating the eCAT if the on-board electrical system supply voltage exceeds an upper threshold value, and
- deactivating the eCAT if the on-board electrical system supply voltage falls below a lower threshold value.
An electrically heatable catalytic converter that is supplied, by a starter generator, with an electrical output power belonging to the starter generator, wherein the eCAT has a supply monitoring unit that monitors an on-board electrical system supply voltage, which arises, for the eCAT and is designed to carry out a method comprising:
- increasing the output power of the starter generator by a PWM method,
- monitoring, by the eCAT, an on-board electrical system supply voltage that arises on account of the increase in the output power of the starter generator,
- activating the eCAT if the on-board electrical system supply voltage exceeds an upper threshold value, and
- deactivating the eCAT if the on-board electrical system supply voltage falls below a lower threshold value.
A vehicle having an electrically heatable catalytic converter that is supplied, by a starter generator, with an electrical output power belonging to the starter generator, wherein the eCAT has a supply monitoring unit that monitors an on-board electrical system supply voltage, which arises, for the eCAT and is designed to carry out a method comprising:
- increasing the output power of the starter generator by a PWM method,
- monitoring, by the eCAT, an on-board electrical system supply voltage that arises on account of the increase in the output power of the starter generator,
- activating the eCAT if the on-board electrical system supply voltage exceeds an upper threshold value, and
- deactivating the eCAT if the on-board electrical system supply voltage falls below a lower threshold value.
Dependencies are inferred from the claim text.