B60W2710/083

Systems and methods to determine and validate torque of an electric machine

A vehicle includes a multi-core processor having first, second, and cores and having first and second analog-to-digital converters (ADC) associated with the first and second cores, respectively. The first and second ADC are configured to convert analog phase currents to first and second digital phase current values, respectively. The multi-core processor is configured to generate first and second rotor-angle data from digital signals representing a position of the electric machine. The processor is programmed to, via the first core, estimate a first output torque of the electric machine based on the first rotor-angle data and the first digital phase current values, via the second core, estimate a second output torque based on the second rotor-angle data and the second digital phase current values, and, via the third core, command de-activation of the electric machine in response to a difference between the first and second output torques exceeding a threshold.

Apparatus and method for controlling articulation of articulated vehicle

An apparatus and method for controlling articulation of an articulated vehicle may prevent jackknifing of the articulated vehicle driven backwards. The apparatus includes a hitch angle calculator configured to calculate a desired hitch angle based on a steering angle and a speed of the articulated vehicle, an error calculator configured to calculate an error between the desired hitch angle and an actual hitch angle of the articulated vehicle, a moment generator configured to generate a moment for controlling the articulation of the articulated vehicle based on the error, and an articulation controller configured to control the articulation of the articulated vehicle based on the moment.

One-pedal drive method to control vehicle speed to a stop using feedback powertrain torque controls

A controller, responsive to accelerator pedal release and a speed of the vehicle being less than a threshold, operates an electric machine to provide braking torque according to a predetermined speed versus time profile that defines a predetermined duration for the speed to become zero and a target speed for each time instant during the predetermined duration such that, for a given one of the time instants, the electric machine increases the braking torque responsive to the speed being greater than the target speed and decreases the braking torque responsive to the speed being less than the target speed.

METHOD FOR MANAGING A TORQUE TO BE SUPPLIED BY AN ELECTRIC MOTOR
20220314960 · 2022-10-06 ·

Disclosed is a method for managing a torque to be supplied on a shaft of an electric motor including the following steps: creating and initializing a correction data table; acquiring a torque instruction; determining a torque command; measuring the current output from the converter and measuring the current output from the battery; calculating an electrical power on the basis of the two current measurements and of the voltage; determining, on the basis of a map, a corresponding torque on the basis of the electrical power at the motor and of the rotational speed of the motor; reading the information provided by the motor relating to the torque exerted on its shaft; calculating the difference between the information provided by the motor and the torque determined on the basis of the electrical power; and updating the correction data table.

METHOD FOR SLIP CONTROL OF A VEHICLE WHEEL AND DEVICE THEREFOR

The disclosure is directed to a method for slip control of a vehicle wheel driven via an electric drive. The method including at least the following steps: driving the electric drive of the vehicle wheel using an actual drive torque in a torque control in a torque control step, determining a wheel speed and a wheel slip of the vehicle wheel and evaluating the wheel slip by way of an instability criterion as to whether an instability exists, upon recognizing an instability, direct or indirect transition in a slip control of the wheel slip to a setpoint slip by driving the electric drive, determining whether an end criterion for ending the slip control is satisfied; and, if the end criterion is satisfied, returning to the torque control in the torque control step.

SYSTEMS AND METHODS FOR SPEED CONTROL OF WHEELS OF A VEHICLE
20220314816 · 2022-10-06 ·

Systems and methods are provided herein for controlling the speed on each wheel of a vehicle, possibly operating a vehicle in a speed control mode. In response to receiving input to engage speed control mode and receiving an accelerator pedal input, the system determines a target wheel speed based on the accelerator pedal input, monitors wheel speed of each of a plurality of wheels and determines, for each monitored wheel, a difference based on the monitored wheel speed and the target wheel speed. A torque is provided to each of the plurality of wheels based on the respective difference to achieve the target wheel speed.

VEHICLE CONTROL APPARATUS
20220315022 · 2022-10-06 ·

A vehicle control apparatus that provides control over a brake device or a power plant device of a host vehicle includes: an information acquisition part configured to acquire information on state of the brake device and the power plant device and information on front wheel steering angle; a determination part configured to determine whether or not an abnormality has occurred in a turnability improvement control; a deceleration force computation part configured to compute a required deceleration force; and a coordinated control part configured to perform a coordinated control in which a distribution ratio between a brake deceleration force of the brake device and a power plant deceleration force of the power plant device is adjusted. When an abnormality has occurred in the turnability improvement control, a sum of the brake deceleration force and the power plant deceleration force is degenerated according to a prescribed time rate of change.

VEHICLE CONTROL APPARATUS
20220314962 · 2022-10-06 · ·

A vehicle control apparatus includes a motor generator, an engine, a transmission mechanism, a clutch mechanism, and a control system configured to control the motor generator, the engine, the transmission mechanism and the clutch mechanism. The control system has a first traveling mode to engage the clutch mechanism and a second traveling mode to disengage the clutch mechanism. The control system is configured to set a shift period based on a transmission gear ratio of the transmission mechanism. The control system is configured to: control, upon switching from the first traveling mode to the second traveling mode, the clutch mechanism to be in a state where the clutch mechanism is engaged for an entirety of the shift period; and under the state where the clutch mechanism is engaged, decrease a torque of the engine and increase a power running torque of the motor generator.

Control unit and method for operating a hybrid drive with a dual clutch transmission

A hybrid drive includes a control unit, an internal combustion engine, an electrical machine and a dual clutch transmission having an output shaft. The dual clutch transmission includes a first sub-transmission and a second sub-transmission, each couplable to the output shaft. A drive shaft of the internal combustion engine is couplable to a first input shaft of the first sub-transmission via a first clutch and to a second input shaft of the second sub-transmission via a second clutch. The control unit is configured to permit the second clutch to be closed even when the hybrid drive is being operated purely electrically so that the driveshaft of the internal combustion engine is driven by the electrical machine. A control unit and a method for operation of a hybrid drive are also provided.

Method and system for providing torque to clutch in hybrid vehicle

A hybrid vehicle includes an electric motor and a combustion engine. A K0 clutch couples the combustion engine to a drivetrain of the vehicle. A control module of the vehicle calculates a torque to be applied by the motor to the K0 clutch when initiating engagement of the combustion engine to the drivetrain. The control module calculates two separate torque lead values by two separate methods and calculates the torque by combining the two torque lead values.