Method for operating a motor vehicle and corresponding motor vehicle
First Claim
1. Method for operating a motor vehicle which has an electrical drive device, said method comprising:
- operating the motor vehicle in one of three modes, a drive mode in which an electric machine of the drive device is operated as motor, wherein by means of electrical energy withdrawn from an energy storage a torque that is directed toward an acceleration of the motor vehicle is provided, a recuperation mode in which the electric machine is operated as a generator, wherein a torque that is directed toward a deceleration of the motor vehicle is provided and electrical energy generated thereby is temporarily stored in the energy storage, and a charging mode in which the energy storage is charged with externally provided electrical energy until a predetermined target state of charge is achieved;
when operating the motor vehicle in the recuperation mode, determining a recuperation driving route driven during the recuperation mode and an associated recuperation energy amount and storing the recuperation driving route and the recuperation energy amount as driving route data in a driving route memory or transmitting the driving route data to an external data storage device;
when switching into the charging mode or when operating the motor vehicle in the charging mode predictively determining an expected driving route of the motor vehicle and for the expected driving route reading out the driving route data from the driving route memory or requesting the driving route data from the external data storage device; and
setting the target state of charge to a value which is determined from a maximal state of charge of the energy storage and the recuperation energy amount stored in the driving route data.
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Accused Products
Abstract
A method for operating a motor vehicle includes operating the motor vehicle in a drive mode, a recuperation mode or a charging mode, wherein when operating the motor vehicle in the recuperation mode, a recuperation driving route driven during the recuperation mode and an associated recuperation energy amount are determined and are stored as driving route data in a driving route memory and/or are transmitted to an external data storage device; wherein when switching into the charging mode or when operating the motor vehicle in the charging mode an expected driving route of the motor vehicle is predictively determined and for the expected driving route the driving route data are read out from the driving route memory and/or are requested from external data storage device; wherein the target state of charge is set to a value which is determined from a maximal state of charge of the energy storage and the recuperation energy amount stored in the driving route data.
6 Citations
10 Claims
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1. Method for operating a motor vehicle which has an electrical drive device, said method comprising:
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operating the motor vehicle in one of three modes, a drive mode in which an electric machine of the drive device is operated as motor, wherein by means of electrical energy withdrawn from an energy storage a torque that is directed toward an acceleration of the motor vehicle is provided, a recuperation mode in which the electric machine is operated as a generator, wherein a torque that is directed toward a deceleration of the motor vehicle is provided and electrical energy generated thereby is temporarily stored in the energy storage, and a charging mode in which the energy storage is charged with externally provided electrical energy until a predetermined target state of charge is achieved; when operating the motor vehicle in the recuperation mode, determining a recuperation driving route driven during the recuperation mode and an associated recuperation energy amount and storing the recuperation driving route and the recuperation energy amount as driving route data in a driving route memory or transmitting the driving route data to an external data storage device; when switching into the charging mode or when operating the motor vehicle in the charging mode predictively determining an expected driving route of the motor vehicle and for the expected driving route reading out the driving route data from the driving route memory or requesting the driving route data from the external data storage device; and setting the target state of charge to a value which is determined from a maximal state of charge of the energy storage and the recuperation energy amount stored in the driving route data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A motor vehicle, comprising an electric drive device, said motor vehicle being configured to be operated in three operating modes a driving mode in which an electric machine of the drive device is operated as motor, wherein by means of electrical energy withdrawn from an energy storage a torque that is directed toward an acceleration of the motor vehicle is provided, a recuperation mode in which the electric machine is operated as a generator, wherein a torque that is directed toward a deceleration of the motor vehicle is provided and electrical energy generated thereby is temporarily stored in the energy storage, and a charging mode in which the energy storage is charged with externally provided electrical energy until a predetermined target state of charge is achieved,
said motor vehicle being configured when operating in the recuperation mode to determine a recuperation driving route driven during the recuperation mode and an associated recuperation energy amount and to store the recuperation driving route and the recuperation energy amount as driving route data in a driving route memory and/or to transmit the driving route data to an external data storage device, when switching into the charging mode or when operating in the charging mode to predictively determine an expected driving route of the motor vehicle and for the expected driving route to read out the driving route data from the driving route memory and/or to request the driving route data from the external data storage device, and to set the target state of charge to a value which is determined from a maximal state of charge of the energy storage and the recuperation energy amount stored in the driving route data.
Specification