Using onboard battery charger as a tuned mass damper configured to reduce road noise, vibration and harshness
AssigneePolestar Performance AB
InventorStefan Wedin
Life of this patent
Estimating the term…
Abstract
An electric vehicle, including a vehicle structure, four ground engaging wheels, and a suspension system operably coupling each of the four ground engaging wheels with the vehicle structure, a battery operably coupled to the vehicle structure, and an onboard battery charger in electrical communication with the battery, the onboard battery charger operably coupled to the vehicle structure by a battery charger suspension system, the battery charger suspension system including one or more dampers tuned to counteract resonance vibrations experienced by the vehicle structure.
Claims20
An electric vehicle, comprising:
- a vehicle structure, four ground engaging wheels, and a suspension system operably coupling each of the four ground engaging wheels with the vehicle structure;
- a battery operably coupled to the vehicle structure;
- and
- an onboard battery charger in electrical communication with the battery, the onboard battery charger operably coupled to the vehicle structure by a battery charger suspension system, the battery charger suspension system including one or more springs tuned to counteract resonance vibrations experienced by the vehicle structure.
A tuned battery charger configured to reduce noise, vibration and harshness in an electric vehicle, the tuned battery charger comprising:
- a battery charger in electrical communication with a battery;
- and
- an onboard battery charger operably coupled to a vehicle structure by a battery charger suspension system, the battery charger suspension system including one or more springs tuned to counteract resonance vibrations experienced by the vehicle structure.
A dynamically tuned mass damper system configured to reduce noise, vibration and harshness in a vehicle, the system comprising:
- a vehicle component having a mass, the vehicle component operably coupled to a vehicle structure by a suspension system, the suspension system including one or more dampers constructed of an electroactive polymer material;
- and
- an electronic control unit configured adjust a voltage applied to the one or more dampers to adjust a damping of the one or more dampers in real time based on feedback data received from sensing circuitry, wherein the electronic control unit actively adjusts the voltage applied to the one or more dampers to minimize oscillation displacement experienced by the vehicle structure.
Dependencies are inferred from the claim text.