Method for calculating consumption and/or a remaining range of a motor vehicle and motor vehicle
First Claim
1. A method for calculating a remaining range and/or a consumption of a motor vehicle with an energy storage system for a drive which acts on at least one wheel of the motor vehicle, comprising:
- calculating, using a calculation device, the remaining range and/or the consumption by using a first algorithm;
calculating, using the calculation device, the remaining range and/or the consumption by using a second algorithm, the calculation by the calculation device of the remaining range and/or the consumption using the second algorithm requiring a higher computing load on the calculation device than the calculation by the calculation device of the remaining range and/or the consumption using the first algorithm,switching over between using the first algorithm and using the second algorithm as a function of energy stored in the energy storage system, whereinthe first algorithm is an algorithm which is based on area segments with respectively assigned energy costs, andthe second algorithm is a Dijkstra algorithm, which is based on road segments, or an algorithm which is derived from the Dijkstra algorithm, the second algorithm having energy values as a cost function.
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Accused Products
Abstract
A method calculates a remaining range and/or consumption of a motor vehicle with an energy storage system for a drive which acts on at least one wheel of the motor vehicle. The remaining range and/or the consumption can be calculated in a first fashion by using a first algorithm and in a second fashion by using a second algorithm. The second fashion requires a higher degree of expenditure on calculation than the first fashion. Switching over between the first fashion and the second fashion occurs as a function of the energy stored in the energy storage system.
7 Citations
13 Claims
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1. A method for calculating a remaining range and/or a consumption of a motor vehicle with an energy storage system for a drive which acts on at least one wheel of the motor vehicle, comprising:
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calculating, using a calculation device, the remaining range and/or the consumption by using a first algorithm; calculating, using the calculation device, the remaining range and/or the consumption by using a second algorithm, the calculation by the calculation device of the remaining range and/or the consumption using the second algorithm requiring a higher computing load on the calculation device than the calculation by the calculation device of the remaining range and/or the consumption using the first algorithm, switching over between using the first algorithm and using the second algorithm as a function of energy stored in the energy storage system, wherein the first algorithm is an algorithm which is based on area segments with respectively assigned energy costs, and the second algorithm is a Dijkstra algorithm, which is based on road segments, or an algorithm which is derived from the Dijkstra algorithm, the second algorithm having energy values as a cost function. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A motor vehicle comprising:
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a calculation device to calculate a remaining range and/or consumption of the motor vehicle; a drive which acts on at least one wheel of the motor vehicle; and an energy storage system for the drive, wherein the calculation device comprises; a first calculation unit to calculate the remaining range and/or the consumption using a first algorithm which is based on area segments with respectively assigned energy costs; a second calculation unit to calculate the remaining range and/or the consumption using a second algorithm, the calculation by the second calculation unit of the remaining range and/or the consumption using the second algorithm requiring a higher computing load on the second calculation unit than a computing load on the first calculation unit for the calculation of the remaining range and/or the consumption using the first algorithm, the second algorithm corresponding to a Dijkstra algorithm based on road segments or an algorithm which is derived from the Dijkstra algorithm, the second algorithm using energy values as a cost function; and a switching unit to switch over between using the first algorithm and using the second algorithm as a function of energy stored in the energy storage system. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification