Method and device for heating engine and transmission oil of a hybrid vehicle
First Claim
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1. A method for heating engine and/or transmission oil of a hybrid vehicle, the hybrid vehicle having at least one battery, a charging device, an internal combustion engine and an electric motor, the method comprising:
- heating the engine oil and the transmission oil with the aid of;
i) waste heat emitted by the charging device for the at least one battery, andii) waste heat emitted by the at least one battery;
wherein a fluid circuit having the at least one of the engine oil and the transmission oil as the fluid is thermally coupled to at least one of the charging device and the at least one battery for indirect or direct heating of the at least one of the engine oil and the transmission oil and heating the engine oil and the transmission oil is not aided by a heat source that is external to the vehicle.
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Abstract
A method for heating engine and/or transmission oil of a hybrid vehicle having an internal combustion engine and an electric motor, the engine and/or transmission oil being heated with the aid of the waste heat of a charging device for at least one battery and/or the waste heat of the at least one battery.
16 Citations
19 Claims
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1. A method for heating engine and/or transmission oil of a hybrid vehicle, the hybrid vehicle having at least one battery, a charging device, an internal combustion engine and an electric motor, the method comprising:
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heating the engine oil and the transmission oil with the aid of; i) waste heat emitted by the charging device for the at least one battery, and ii) waste heat emitted by the at least one battery; wherein a fluid circuit having the at least one of the engine oil and the transmission oil as the fluid is thermally coupled to at least one of the charging device and the at least one battery for indirect or direct heating of the at least one of the engine oil and the transmission oil and heating the engine oil and the transmission oil is not aided by a heat source that is external to the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16, 19)
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8. A heating device for engine and/or transmission oil of a hybrid vehicle having at least one battery, a charging device, an internal combustion engine and an electric motor, the heating device comprising:
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a fluid circuit having a fluid; and a heat source for heating the engine oil and the transmission oil, with the aid of the fluid circuit; wherein the fluid circuit is thermally coupled to the charging device and the at least one battery, so that the heat source is the charging device and the at least one battery, in order to heat the engine oil and the transmission oil with the aid of the waste heat emitted by the charging device and the at least one battery; wherein the fluid circuit having the at least one of the engine oil and the transmission oil as the fluid is thermally coupled to at least one of the charging device and the at least one battery for indirect or direct heating of the at least one of the engine oil and the transmission oil. - View Dependent Claims (9, 10, 11, 12, 13, 17, 18)
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14. A heating device for a hybrid vehicle having at least one battery and a charging device, the heating device configured to heat engine oil and transmission oil using waste heat emitted by the charging device for the at least one battery and the at least one battery;
wherein a fluid circuit having the at least one of the engine oil and the transmission oil as the fluid is thermally coupled to at least one of the charging device and the at least one battery for indirect or direct heating of the at least one of the engine oil and the transmission oil.
Specification