Method to prevent power reduction
AssigneeZF Friedrichshafen AG
InventorsMichael Grossmann, Daniel Morgenweck, Oussama Jabloun
Life of this patent
Estimating the term…
Abstract
A method is disclosed for preventing a power reduction in an electric drive system of a vehicle (3) during a journey of the vehicle. The method includes a component-tempering process (P2) in which at least one component (4, 5, 6) of the electric drive system is tempered, such that the method comprises a power reduction prediction process (P1) in which it is checked whether a power reduction is to be expected during a journey. The component-tempering process (P2) is initiated as soon as the power reduction prediction process (P1) has recognized that a power reduction is to be expected during the journey.
Claims12
A method for preventing a power reduction in an electric drive system of a vehicle during a journey of the vehicle, wherein the electric drive system is configured to temper at least one component of the electric drive system, the method comprising:
- determining, by the electric drive system, that a power reduction is to be expected during a journey, including estimating, based on a maximum cooling power and with the use of a temperature model of the electric drive system, whether during the journey any component of the electric drive system will exceed a respective maximum temperature;
- and
- initiating tempering, by the electric drive system, after determining that the power reduction is to be expected during the journey.
A method for preventing a power reduction in an electric drive system of a vehicle during a journey of the vehicle, wherein the electric drive system is configured to temper at least one component of the electric drive system, and wherein the vehicle includes a vehicle-to-vehicle communication system and a system for taking account of one or more environmental data, the method comprising:
- determining, by the electric drive system, that a power reduction is to be expected during a journey;
- and
- initiating tempering, by the electric drive system, after determining that the power reduction is to be expected during the journey.
Dependencies are inferred from the claim text.