Method for operating a motor vehicle and motor vehicle
First Claim
1. A method for operating a motor vehicle, which is driven only by an electric motor, wherein the motor vehicle has a high-voltage power system, to which the electric motor is connected, with a high-voltage battery that is to be operated in an operating temperature range, for which purpose, a temperature control means utilizing a circulating coolant and having a heating means for the coolant and a cooling means for the coolant is assigned to the high-voltage battery, comprising:
- satisfying a deficiency criterion for a power requirement which indicates that a braking power required for braking the motor vehicle by recuperation by means of the electric motor exceeds the on-demand power currently in the high-voltage power system that can be demanded for charging the high-voltage battery and demanded by other consumers, by activating the heating means and the cooling means of the temperature control means for the high-voltage battery such that they both will be operated, and require at least the power difference between the braking power and the on-demand power, and the temperature of the high-voltage battery remains within the operating temperature range.
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Accused Products
Abstract
A method for operating a motor vehicle, which is driven by an electric motor. The motor vehicle has a high-voltage power system, to which the electric motor is connected, with a high-voltage battery that is operated in an operating temperature range, for which purpose, a temperature control mechanism utilizing a circulating coolant, and having a heating mechanism for the coolant and a cooling mechanism for the coolant is assigned to the high-voltage battery, to satisfy a power deficiency which indicates that a braking power required by recuperation of the electric motor exceeds the on-demand power currently in the high-voltage power system that can be demanded for charging the high-voltage battery.
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7 Claims
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1. A method for operating a motor vehicle, which is driven only by an electric motor, wherein the motor vehicle has a high-voltage power system, to which the electric motor is connected, with a high-voltage battery that is to be operated in an operating temperature range, for which purpose, a temperature control means utilizing a circulating coolant and having a heating means for the coolant and a cooling means for the coolant is assigned to the high-voltage battery, comprising:
satisfying a deficiency criterion for a power requirement which indicates that a braking power required for braking the motor vehicle by recuperation by means of the electric motor exceeds the on-demand power currently in the high-voltage power system that can be demanded for charging the high-voltage battery and demanded by other consumers, by activating the heating means and the cooling means of the temperature control means for the high-voltage battery such that they both will be operated, and require at least the power difference between the braking power and the on-demand power, and the temperature of the high-voltage battery remains within the operating temperature range. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A motor vehicle, having an electric motor as a drive engine comprising:
a high-voltage power system to which the electric motor is connected, with a high-voltage battery that is to be operated in an operating temperature range; a temperature control means utilizing a circulating coolant, having a heating means for the coolant and a cooling means for the coolant, and assigned to the high-voltage battery; and a control means.
Specification