Navigation system for an electric vehicle
First Claim
1. A method for operating an electric vehicle comprising the steps:
- ascertaining, with a processor, a selection of a charging station based on a user input, where a position of the selected charging station is stored in a database, and is an ultimate destination of the electric vehicle subsequent to reaching a target position;
ascertaining, with the processor, a current position of the electric vehicle;
ascertaining, with the processor, a reachability of the target position, the target position separated from the current position and the stored position of the selected charging station, where the ascertainment is based on the current position of the electric vehicle, the stored position of the selected charging station, and a current state of charge of an energy storage device included in the electric vehicle, so that the target position and subsequently the stored position of the selected charging station are reachable with only the current state of charge of the energy storage device; and
outputting by the processor the reachability of the target position with an information item provided for display on an output device of a navigation system of the electric vehicle, the information item including an area marking displayed on the output device as a line or polygon enclosing an area in which any one location of a plurality of locations within the line or polygon and subsequently the stored position of the selected charging station are reachable with only the current state of charge of the energy storage device.
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Accused Products
Abstract
A navigation system for an electric vehicle may ascertain a selection of a charging station based on a user input, wherein a stored position of the charging station is an ultimate destination. The navigation system can ascertain a current position of the electric vehicle. In addition, the navigation system can ascertain a reachability of a target position that is separated from the current position and the stored position of the charging station. The ascertainment of reachability can be based on the current position of the electric vehicle, the stored position of the selected charging station, and the current state of charge of the energy storage device, so that the target position and subsequently the stored position of the selected charging station are reachable with the current state of charge of the energy storage device.
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Citations
20 Claims
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1. A method for operating an electric vehicle comprising the steps:
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ascertaining, with a processor, a selection of a charging station based on a user input, where a position of the selected charging station is stored in a database, and is an ultimate destination of the electric vehicle subsequent to reaching a target position; ascertaining, with the processor, a current position of the electric vehicle; ascertaining, with the processor, a reachability of the target position, the target position separated from the current position and the stored position of the selected charging station, where the ascertainment is based on the current position of the electric vehicle, the stored position of the selected charging station, and a current state of charge of an energy storage device included in the electric vehicle, so that the target position and subsequently the stored position of the selected charging station are reachable with only the current state of charge of the energy storage device; and outputting by the processor the reachability of the target position with an information item provided for display on an output device of a navigation system of the electric vehicle, the information item including an area marking displayed on the output device as a line or polygon enclosing an area in which any one location of a plurality of locations within the line or polygon and subsequently the stored position of the selected charging station are reachable with only the current state of charge of the energy storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A navigation system of an electric vehicle comprising:
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a computing unit configured to ascertain a selection of a selected charging station based on a user input, where a stored position of the charging station is an ultimate destination of the electric vehicle subsequent to reaching a target position; the computing unit further configured to ascertain a current position of the electric vehicle; the computing unit further configured to ascertain a reachability of a target position separated from the current position and the stored position of the selected charging station so that the target position and the stored position of the selected charging station are subsequently reachable with only a current state of charge of an energy storage device included in the vehicle, where ascertainment of the reachability is based on the current position of the electric vehicle, the stored position of the selected charging station and the current state of charge of the energy storage device; and the computing unit further configured to output the reachability of the target position using an information item that is output for display with an output device of the navigation system of the electric vehicle, the information item including an area marking displayed on the output device as a line or polygon enclosing an area in which any one location of a plurality of locations within the line or polygon and subsequently the stored position of the selected charging station are reachable with only the current state of charge of the energy storage device. - View Dependent Claims (12, 13, 14, 15)
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16. A computer readable storage medium configured to store instructions executable by a processor for a navigation system of an electric vehicle, the computer readable storage medium comprising:
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instructions executable by the processor to receive and store in a database an identifier of a charging station and a position of the charging station; instructions executable by the processor to receive a selection, via user input, of the charging station as an ultimate destination and receive an indication of a target destination defined as a waypoint between a current location of the electric vehicle and the charging station; instructions executable by the processor to determine the current location of the electric vehicle; instructions executable by the processor to calculate a route to the target destination and subsequently to the position of the charging station in response to the user input; instructions executable by the processor to receive a current state of charge of an energy storage device included in the electric vehicle; instructions executable by the processor to ascertain, based on the current location and the current state of charge, that the electric vehicle can travel to the target destination and subsequently travel to the position of the charging station using only the current state of charge of the energy storage device; instructions executable by the processor to generate an information item for display on a display device, the information item indicative that the electric vehicle can reach the target destination and return to the position of the charging station; instructions executable by the processor to ascertain an area within which the electric vehicle can reach target positions and return to the position of the charging station; and instructions executable by the processor to output for display with the display device an area marking on a map view within which target locations are indicated as reachable as the target destination, the area marking including a polygon enclosing the area in which any one target position within the line or polygon and subsequently the position of the charging station are reachable with only the current state of charge of the energy storage device. - View Dependent Claims (17, 18, 19, 20)
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Specification