Method for operating a vehicle cooling system
AssigneeDeere & Company
InventorManuel Billich
Life of this patent
Estimating the term…
Abstract
A method for operating a vehicle cooling system includes generating, via a main cooling unit, a main cooling air flow passing through a first heat exchanger arrangement in a main cooling path; generating, via a secondary cooling unit, located upstream in the main cooling path, a secondary cooling air flow passing through a second heat exchanger arrangement in a secondary cooling path branching off upstream in the main cooling path; in a first operating mode, operating, via a control unit, both the main cooling unit and the secondary cooling unit in order to generate mutually independent cooling air flows; and, in a second operating mode, operating, via the control unit, the main cooling unit and setting the secondary cooling unit to one of a stationary and an idle operating state.
Claims10
A method for operating a vehicle cooling system, comprising:
- generating, via a main cooling unit, a main cooling air flow passing through a first heat exchanger arrangement in a main cooling path;
- generating, via a secondary cooling unit located upstream in the main cooling path, a secondary cooling air flow passing through a second heat exchanger arrangement in a secondary cooling path branching off upstream in the main cooling path;
- in a first operating mode, operating via a control unit both the main cooling unit and the secondary cooling unit in order to generate mutually independent cooling air flows;
- and
- in a second operating mode, operating via the control unit the main cooling unit and setting the secondary cooling unit to one of a stationary and an idle operating state so that, due to the pressure conditions prevailing upstream in the main cooling air flow, a passive secondary cooling air flow passing through the second heat exchanger arrangement is produced.
A vehicle cooling system, comprising:
- a main cooling path and a secondary cooling path branching off upstream in the main cooling path;
- a main cooling unit for generating a main cooling air flow passing through a first heat exchanger arrangement in the main cooling path and a secondary cooling unit, located upstream in the main cooling path, for generating a secondary cooling air flow passing through a second heat exchanger arrangement in the secondary cooling path;
- a control unit configured to be operable in a first operating mode, whereby both the main cooling unit and the secondary cooling unit are operated by the control unit to generate mutually independent air flows;
- and, also configured to be operable in a second operating mode, whereby the main cooling unit is operated by the control unit and the secondary cooling unit is in one of a stationary and an idle operating state so that, due to the pressure conditions prevailing upstream in the main cooling air flow, a passive secondary cooling air flow passing through the second heat exchanger arrangement is produced.
Dependencies are inferred from the claim text.