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公开(公告)号：US20240326608A1
公开(公告)日：2024-10-03
申请号：US18192034
申请日：2023-03-29
申请人： FCA US LLC
CPC分类号： B60L15/2036 , B60L3/0061 , B60L2240/46
摘要： Dynamic slip target control systems and method for a multi-motor electrified powertrain of an electrified vehicle including a driveline having four wheels involve determining (i) a steering angle of the driveline of the electrified vehicle, (ii) a vehicle speed of the electrified vehicle, and (iii) a wheel speed of each the four wheels of the driveline, dynamically determining a target wheel slip based on a wheel speed model with inputs including the steering angle and vehicle speed, determining an expected differential speed based on the dynamically determined target wheel slip, determining a torque bias adjustment based on a difference between wheel speed errors and the expected differential speed, and controlling two or more electric motors of the multi-motor electrified powertrain based on an estimated torque bias and the torque bias adjustment.
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2.发明公开公开(公告)号：US20240326587A1
公开(公告)日：2024-10-03
申请号：US18191980
申请日：2023-03-29
申请人： FCA US LLC
CPC分类号： B60K23/0808 , B60K1/02 , B60L15/20 , B60K17/356 , B60L2240/14 , B60L2240/423 , B60L2240/46 , B60L2240/461
摘要： Proprioceptive torque distribution control systems and methods for an electrified vehicle having a multi-motor electrified powertrain including two or more electric motors involve an accelerometer sensor system configured to measure accelerations of the electrified vehicle relative to three perpendicular axes, and a controller configured to determine four relative degrees of contact by four wheels of the electrified vehicle with a ground surface, respectively, based on the measured accelerations and travel of a suspension of the electrified vehicle, and control a distribution of a total amount of drive torque generated by the multi-motor electrified powertrain between the four wheels of the electrified vehicle based on their respective four relative degrees of contact with the ground surface to thereby improve performance and stability of the electrified vehicle.
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3.发明公开公开(公告)号：US20240359531A1
公开(公告)日：2024-10-31
申请号：US18308141
申请日：2023-04-27
申请人： FCA US LLC
IPC分类号： B60H1/00
CPC分类号： B60H1/00807 , B60H1/00278
摘要： A method of developing a control strategy for a thermal management system. The method includes decomposing a thermal management circuit defined by a plurality of secondary circuits that are each in fluid communication with each other into a plurality of sub-loops, the fluid communication between each of the secondary circuits and thermal management of the thermal management circuit being controlled by a plurality of actuators; determining at least one global thermal function associated with the thermal management circuit; after determining the at least one global thermal function associated with the thermal management circuit, determining an actuator mode capable of achieving the at least one global thermal function wherein the actuator mode is a collection of states of each of the plurality of actuators in the thermal management circuit; and forming at least one control algorithm for the thermal management circuit based on the actuator mode.
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