Abstract: The present disclosure relates to a dual battery system (1) comprising a first battery (B1) and a second battery (B2), for balancing charge level of the first battery and the second battery, the dual battery system being adapted for powering propulsion of an electric vehicle (3) comprising a first electric motor (E1) coupled in driving relationship with one or more rear wheels of the electric vehicle and a second electric motor (E2) coupled in driving relationship with one or more front wheels of the electric vehicle. The first battery is adapted to provide electric power for driving the first electric motor and the second battery is adapted to provide electric power for driving the second electric motor. The dual battery system obtains (100) at least one of data or information of a predetermined and/or imminent charging event of the electric vehicle. The dual battery system furthermore obtains (200) at least one of data or information of charge level of the first battery and second battery respectively.
Type:
Grant
Filed:
January 18, 2021
Date of Patent:
August 4, 2026
Assignee:
POLESTAR PERFORMANCE AB
Inventors:
Anders Höckenström, Hans Pehrson, Jongseok Moon, Erik Ragnerius
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.
Abstract: A electric vehicle battery thermal regulation system configured to prioritize a flow of cooling fluid past at least one of a battery cell experiencing a thermal event, including a plurality of conduits through which a flow of thermal regulation fluid can flow, portions of the thermal regulation system positioned in close proximity to the at least one of a plurality of battery cells to provide cooling to said plurality of battery cells, wherein the thermal regulation system includes one or more bi-material valves configured to at least one of open or close in response to a change in temperature of the thermal regulation fluid, thereby rerouting a flow of the thermal regulation fluid through the plurality of conduits to prioritize cooling to one or more battery cells experiencing a thermal event.
Abstract: A vent for an electric vehicle battery pack configured to transition from a venting, open position to a sealed, closed position in the event of a thermal event experienced by the electric vehicle battery pack, thereby trapping the gasses within the electric vehicle battery pack, including a curved disc shaped and sized to selectively seal an aperture defined by the electric vehicle battery pack, the curved disc formed of a first material on a first major surface of the disc, and a second material positioned on an opposing second major surface of the disc, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the curved disc causes the first material to expand more than the second material, thereby transitioning the curved disc from a first equilibrium state to a second equilibrium state.
Abstract: A vehicle rocker panel torsion lever configured to reduce intrusion in the event of a side impact, the vehicle rocker panel torsion lever including a rigid elongated member including a first end and a second end, the first end configured to be fixedly coupled to a rocker panel of a vehicle, the second end free-floating within a cavity defined by a B-pillar of the vehicle, the rigid elongated member configured to translate a linear external side-impact applied to the B-pillar to a rotational force applied to the rocker panel.
Type:
Grant
Filed:
September 30, 2022
Date of Patent:
November 18, 2025
Assignee:
POLESTAR PERFORMANCE AB
Inventors:
Sanjeev Sharma, Sushanta Debnath, Robert Lloyd, Aiden Austin
Abstract: A system as described herein can be used to maintain safety features for an electric vehicle. These features include redundant low-voltage power provision and redundant cooling, each provided by use of multiple battery strings.
Type:
Grant
Filed:
September 24, 2021
Date of Patent:
October 14, 2025
Assignee:
Polestar Performance AB
Inventors:
Olof Norberg, Niklas Roos, Johan Gerard Hageman, Robert Wassmur
Abstract: The disclosure relates to a drive shaft arrangement for an all-wheel drive electric vehicle, comprising a drive shaft arranged to transfer torque a drive shaft joint at least partially enclosing a drive shaft end portion, wherein the drive shaft joint comprises a housing and a one-way clutch provided at an inner portion of said housing. The one-way clutch being arranged within said inner portion to engage with said drive shaft at a first drive shaft state, in which the drive shaft transfers torque from said drive shaft in a first direction; disengage from said drive shaft at a second drive shaft state, in which the drive shaft is idle or transfers torque in a second direction opposite to the first direction. The disclosure also relates to a vehicle comprising said drive shaft arrangement.
Abstract: An electric vehicle battery disconnect bracket configured disconnect one or more battery cells or modules experiencing a thermal event within a battery pack to mitigate propagation of the thermal event throughout the battery pack, including a bracket body formed of a first material on a first major surface of the body, and a second material on an opposing second major surface of the body, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the body causes the first material to expand more than the second material, thereby transitioning the body from a first equilibrium state representing a closed, conductive position to a second equilibrium state representing an open, isolation position.
Abstract: Active tire orientation and pressure adjustment systems and methods of use in response to a plurality of activation conditions can ensure efficient tire orientation and pressure modes are active when necessary to balance tire traction and driving range of an electric vehicle. The activation conditions can be customized based on driver preferences to help ease range anxiety while providing a balance with vehicle traction.