Abstract: The present disclosure provides a method for torque management in a multi-motor electric vehicle. The method may include receiving a total torque request value from a vehicle control module (VCM), determining a first torque split value associated with a first motor and a second torque split value associated with a second motor, the sum of the first torque split value and the second torque split value being equal to the total torque request value, monitoring a thermal parameter of at least one of the first motor or the second motor, and adjusting the first torque split value and the second torque split value in response to the thermal parameter exceeding a threshold.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Systems and methods provide for battery conditioning for high voltage (HV) electrical vehicles. Battery temperatures are monitored, and responsive to one or more battery temperatures falling within designated ranges, one or more battery temperatures may be increased via heating in order to provide for more uniform battery performance and conditioning.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Described herein is a control system for a vehicle having an infinitely variable transmission (WT) having a ball planetary variator (CVP), providing a smooth and controlled operation. In some embodiments, the vehicle is a fork lift truck. An operator commands a brake pedal, an accelerator pedal, and a direction switch (or gear selector), which are evaluated by the control system to determine a current operating state of the vehicle. Some operating states include, forward drive, reverse drive, vehicle braking, automatic deceleration, inching, power reversal, vehicle hold, and park, among others.

Abstract: A control system for a multiple-mode continuously variable transmission is described as having a ball planetary variator operably coupled to multiple-mode gearing. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. In some embodiments, the system is configured to predict, detect, and compensate for a torque reversal module through the ball planetary variator.

Abstract: A powertrain including: a main shaft; a first variator having a first plurality of balls in contact with a first traction ring assembly and a second traction ring assembly, and each ball operably coupled to a first carrier assembly; a second variator having a second plurality of balls in contact with a third traction ring assembly and a fourth traction ring assembly, and each ball operably coupled to a second carrier assembly; and a planetary gear set having a ring gear, a planet carrier supporting a plurality of planet gears coupled to the ring gear, and a sun gear coupled to the plurality of the planet gears. The first variator, second variator, and planetary gear set are arranged coaxially along the main shaft. The first traction ring assembly is coupled to the planetary gear set and the second traction ring assembly is coupled to the third traction ring assembly.

Abstract: Provided herein a vehicle including an engine, a first motor/generator, a second motor/generator, a ball-type planetary variator (CVP) and a controller configured to detect an over-temperature mode of operation, wherein the controller commands a change in a lube flow to the CVP based on the over-temperature mode.

Abstract: Provided herein is a vehicle including: an electric axle powertrain including: a continuously variable electric drivetrain comprising a motor/generator and a ball-type continuously variable planetary (CVP), a drive wheel axle operably coupled to the continuously variable electric drivetrain, and a first wheel and a second wheel coupled to the drive wheel axle; and a controller configured to control a CVP speed ratio and determine a request for torque vectoring, wherein the controller commands a change in the CVP speed ratio based on the request for torque vectoring,

Abstract: Provided herein is a vehicle including an engine; a first motor/generator; a second motor/generator; a variator; and a controller configured to detect an energy dissipation mode of operation, wherein the controller commands a change in the variator ratio based on the energy dissipation mode.

Abstract: Provided herein is a vehicle including a powertrain including a prime mover operably coupled to a transmission, wherein the transmission is operably coupled to a plurality of wheels; a plurality of sensors configured to monitor operating conditions of the vehicle including an accelerator pedal position; and a controller configured to receive signals from the plurality of sensors and send an output signal to control a torque request to the powertrain, wherein the controller includes a calibrateable map having values of the torque request based on the accelerator pedal position and an estimated weight of the vehicle.

Abstract: A control system to control the operating conditions of a Continuous Variable Transmission configured to receive signals and execute commands based at least in part on a driver's torque or load request. The control system includes a ratio controller incorporating binary logarithmic processes applied to a commanded CVP ratio and an actual CVP ratio. The binary logarithmic processes provide linearized signals to a PID controller to thereby provide a commanded CVP ratio to form a commanded CVP shift actuator position.

Abstract: Provided herein is a control system for a multiple-mode continuously variable transmission having a ball planetary variator. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The transmission control module includes a CVP control module and a clutch control module. The transmission control module is configured to control the variator and the clutches during a canceled power on upshift, a canceled power on downshift, and a transitional shift based on a driver's command.

Abstract: Provided herein is a computer-implemented system for a ball-planetary variator (CVP) having a plurality of tiltable balls supported in a carrier, the computer-implemented system including: a digital processing device including an operating system configured to perform executable instructions and a memory device; a computer program including instructions executable by the digital processing device and including a shift actuator controller configured to control a plurality of operating conditions of the CVP; and a plurality of sensors configured to monitor the operating conditions of the CVP including: a CVP speed ratio setpoint and an input torque to the CVP. The shift actuator controller includes an actuator force model configured to provide a shift force setpoint based on the CVP speed ratio set point and the input torque to the CVP and commands a change in a carrier position of the CVP based at least in part on the shift force setpoint.

Abstract: Described herein is a control system for a vehicle with an infinitely variable transmission (IVT) having a ball planetary variator (CVP), providing a smooth and controlled operation. In some embodiments, the vehicle is a fork lift truck. An operator commands a brake pedal, an accelerator pedal, a direction switch (or gear selector), and a hydraulic lever, which are evaluated by the control system to determine a current operating state of the vehicle. Some operating states include, forward drive, reverse drive, vehicle braking, automatic deceleration, inching, power reversal, vehicle hold, and park, among others. The control system is configured to determine a commanded engine speed based at least in part on the hydraulic lever signal.

Abstract: This invention relates to controlling the speed ratio of a Continuous Variable Transmission with a hydraulic method. The Ball Planetary CVT design is adapted with a mechanical and hydraulic addition. The carrier of the ball-type variator is supported by hydraulic actuators. The result is that the speed ratio is controlled by both a set speed ratio and the torque flowing through the CVT. Subsequently, torque peaks are avoided and controllability of the CVT is increased.

Abstract: Provided herein is a control system for a multiple-mode continuously variable transmission having a ball planetary variator operably coupled to multiple-mode gearing. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The control system includes an engine torque limit sub-module adapted to command an engine torque limit based at least in part on the operating conditions of the continuously variable transmission.