Method for regulating the temperature of the coolant in an internal combustion engine using an electrically operated coolant pump
AssigneeRobert Bosch GmbH
InventorGerard Melchior
Life of this patent
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Abstract
A method of regulating the temperature of the coolant circuit in an internal combustion engine is described, using an electrically operated coolant pump whose speed regulates or controls the cooling capacity. A great excess of heat can be dissipated and rapid heating of the internal combustion engine can be achieved by using an additional bypass line having corresponding thermostatic valves.
Claims21
A method of regulating a temperature of a coolant in an internal combustion engine connected to a radiator by at least one forward line and a return line and having a thermostatic valve, a bypass line arranged between the at least one forward line and the return line, and a coolant pump, comprising the steps of:
- electrically driving the coolant pump;
- and
- causing a control to select a speed for the coolant pump, as a function of at least one of at least one of engine parameters and ambient parameters, an actual engine temperature, a setpoint engine temperature, and load parameters.
A method of regulating a temperature of a coolant in an internal combustion engine connected to a radiator by at least one forward line and a return line and having a thermostat valve, a bypass line arranged between the at least one forward line and the return line, and a coolant pump, comprising the steps of:
- electrically driving the coolant pump;
- and
- causing a control to select a speed for the coolant pump as a function of at least one of engine parameters and ambient parameters.
Dependencies are inferred from the claim text.