TEMPERATURE CONTROL ARRANGEMENT FOR TRANSMISSION OIL IN A MOTOR VEHICLE AND METHOD FOR CONTROLLING THE TEMPERATURE OF TRANSMISSION OIL IN A MOTOR VEHICLE

摘要

A temperature control arrangement for transmission oil in a motor vehicle comprises a coolant circuit which fluidly connects an internal combustion engine and a cooler. The coolant circuit includes a thermostat configured to direct at least a fraction of a coolant leaving the internal combustion engine back to the internal combustion engine, either directly or through the cooler. The temperature control arrangement is configured to direct some of the coolant, flowing back through the cooler or directly, first through the heat exchanger and then to the internal combustion engine. The thermostat is fluidly connected to an interior heater, to the cooler, and to a bypass configured to direct a fraction of the coolant directly back to the internal combustion engine, bypassing the cooler. A suitable method for controlling the temperature of transmission oil in a motor vehicle using a temperature control arrangement of this kind is furthermore indicated.

主权项

1. A temperature control arrangement for transmission oil in a motor vehicle, comprising:
a coolant circuit which fluidly connects an internal combustion engine and a cooler, the coolant circuit having a thermostat, the thermostat being configured to direct at least a fraction of a coolant leaving the internal combustion engine back to the internal combustion engine, either directly or through the cooler; and a heat exchanger for heat transmission between the coolant and the transmission oil, wherein some of the coolant flowing back through the cooler or directly can be directed in a same direction first through the heat exchanger and then to the internal combustion engine, wherein the thermostat is fluidly connected to an interior heater, to the cooler and to a bypass in order to direct a fraction of the coolant directly back to the internal combustion engine, bypassing the cooler.