Method and device for transporting heat energy that is produced in a motor vehicle
AssigneeRobert Bosch GmbH
InventorReiner Hohl
Life of this patent
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Abstract
A method and an apparatus for transporting thermal energy produced in a motor vehicle provides that the waste heat of an electronic component (42), such as a pulse-controlled inverter, be utilized to heat other vehicle parts, such as the internal combustion engine (12) or the passenger compartment. To that end, preferably two coolant circuits (10, 40) are provided, which can be coupled to one another or decoupled from another in order to control the flow of heat.
Claims15
A method for transporting thermal energy produced in a motor vehicle having an engine (12) with a coolant circuit (10),
- characterized by the following steps:
- cooling of an electronic component (42) in the motor vehicle, and
- conducting the thermal energy, dissipated upon cooling of the component (42), onward to another vehicle part to heat it,
- controlling volumetric flow in the coolant circuit (10) of the engine (12) as a function of the engine temperature and the load range of the engine (12) in which the engine is at that moment,
- at least one coolant circuit (40) for the electronic component (42) is provided by way of which the heat is output to a coolant circuit (10) of an internal combustion engine (12) of the vehicle or Is supplied to the passenger compartment,
- the electronic component (42) Is assigned a coolant circuit (40) with its own radiator (52),
- as a function of a predetermined allowable maximum temperature of the component (42) and a predetermined limit temperature of the vehicle part to be heated, the coolant circuit (40) of the component (42) is coupled to the coolant circuit (10) of the vehicle part and/or to its own radiator (52),
- and the radiator (52) of the electronic component (42) is cooling the electronic component in case of insufficient heat transfer to the vehicle part.
An apparatus for transporting thermal energy produced in a motor vehicle, in particular for performing the method of one of the foregoing claims,
- characterized in that
- an electronic component (42) is coupled to a heat-dissipating line (44;
- 62, 64), and the line (44;
- 62, 64) is re-coupled to another vehicle part in such a way that thermal energy from the component (42) is output to the vehicle part via the line (44;
- 62, 64);
- and
- the line (44;
- 62, 64) is part of a coolant circuit (40) assigned to the component (42), which coolant circuit communicates with the coolant circuit (10) of an internal combustion engine (12) or a heating-type heat exchanger (30).
An apparatus for transporting thermal energy produced in a motor vehicle, in particular for performing the method of one of the foregoing claims,
- characterized in that
- an electronic component (42) is coupled to a heat-dissipating line (44;
- 62, 64), and the line (44;
- 62, 64) is re-coupled to another vehicle part in such a way that thermal energy from the component (42) is output to the vehicle part via the line (44;
- 62, 64);
- and
- the electronic component (42) is a pulse-controlled inverter for a starter generator.
A method for transporting thermal energy produced in a motor vehicle having an engine (12) with a coolant circuit (10),
- characterized by the following steps:
- cooling of an electronic component (42) in the motor vehicle, and
- conducting the thermal energy, dissipated upon cooling of the component (42), onward to another vehicle part to heat it,
- providing at least one coolant circuit (40) for the electronic component (42), by way of which the heat is output to a coolant circuit (10) of an internal combustion engine (12) of the vehicle or is supplied to the passenger compartment,
- controlling the volumetric flow of coolant in at least one of the two coolant circuits (10, 40) as needed via at least one electric coolant pump (68;
- 126) integrated with the coolant circuit (10, 40),
- controlling volumetric flow in the coolant circuit (10) of the engine (12) as a function of the engine temperature and the load range of the engine (12) in which the engine is at that moment, and
- controlling the volumetric flow of both said coolant circuits (10, 40) by associated electronic coolant pumps.
Dependencies are inferred from the claim text.