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US 12,043,141 B2Granted
System for an electrically driven vehicle, and vehicle therewith and method therefor
AssigneeZf Cv Systems Europe BV
InventorsJohannes Heseding, Gerd Schuenemann
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Abstract
A system for an electrically-driven vehicle includes at least one first energy store, which is of an accumulator type, and at least one second energy store, of a type which differs from an accumulator type. The second energy store has an energy density lower than an energy density of the first energy store, and has a power density higher than a power density of the first energy store. The first energy store and the second energy store are designed to supply electrical energy for an electric drive of the vehicle.
Claims14
A system for an electrically-driven vehicle, comprising:
- at least one first energy store, which is of an accumulator type, and
- at least one second energy store, of a type which differs from an accumulator type,
- wherein the second energy store has an energy density lower than an energy density of the first energy store, and has a power density higher than a power density of the first energy store,
- wherein the first energy store and the second energy store are designed to supply electrical energy for an electric drive of the vehicle, and
- wherein the second energy store comprises a flywheel having an electric motor-generator set which is assigned to the flywheel and a converter which is assigned to the flywheel,
- wherein the energy density of the second energy store is less than one half the energy density of the first energy store, and the power density of the second energy store corresponds to at least five times the power density of the first energy store.
3 more elements
Dependencies are inferred from the claim text.