Thermal management for electrical drive systems
AssigneeBorgWarner Sweden AB
InventorKRISTOFFER NILSSON
Life of this patent
Estimating the term…
Abstract
The present invention concerns a method of thermal management of a transmission of an axle (4) of an electrical vehicle and a circuit used for the method. The circuit comprises a coolant pump (1), one or more on-board units, a three way valve (5) and the axle (4), which axle (4) comprises a transmission. Coolant of a cooling system of the vehicle is made to pass the on-board units to pick up heat losses. The on-board units may be power electronics (2), an electrical machine (3), a battery and/or an on-board charger.
Claims13
A method of thermal management of a transmission of an axle of an electrical vehicle, comprising using coolant of a cooling system of the vehicle to pick-up heat losses from one or more on-board units in that the coolant is made to pass the on-board units.
A method of thermal management of a transmission of an axle of an electrical vehicle, comprising using coolant of a cooling system of the vehicle to pick-up heat losses from one or more on-board units in that the coolant is made to pass the on-board units wherein the coolant is circulated by means of a coolant pump, wherein a three way valve is used to shift between the different operation modes and wherein heat losses of power electronics, an electric machine, a battery and/or an on-board charger are used.
A circuit used in a method of thermal management of a transmission of an axle of an electrical vehicle, comprising using coolant of a cooling system of the vehicle to pick-up heat losses from one or more on-board units in that the coolant is made to pass the on-board units, the circuit comprising a coolant pump, one or more on-board units, a three way valve and an axle, which axle comprises a transmission.
Dependencies are inferred from the claim text.