A method for controlling a tone of an electric vehicle (EV) based on motor vibration may include: calculating an order component from a vibration signal of an EV motor of an electric vehicle, extracting a first order component with the greatest linearity for motor output torque among the calculated order component, then calculating an order frequency by transforming revolutions per minute (RPM) of the EV motor into frequency, setting an EV mode tone by applying a vibration level of the first order component to a level of the order frequency to be output and rearranging the order component, and outputting the set EV mode tone, and may apply an LMS filter algorithm, FFT/IFFT transforms, and an order tracking algorithm in extracting the first order component.

An active vibration noise control system is applied to a vehicle provided with an EPS motor to change behavior of the vehicle. The active vibration noise control system includes an ANC processor configured to receive acoustic information at a predetermined position in a vehicle compartment as an error signal and control a vibration noise based on a reference signal correlate with the vibration noise and the error signal that is received and an inverse electromotive force information receiving section receiving information on an inverse electromotive force induced on the EPS motor by behavior change of the vehicle. The ANC processor utilizes as a reference signal the information on the inverse electromotive force received by the inverse electromotive force information receiving section. The active vibration noise control system actively controls the vibration noise generated in the vehicle.

Aspects of the disclosure provide for a method of controlling a vehicle in an autonomous driving mode. For instance, the method may include receiving, by one or more processors of a brake controller of the vehicle, a braking profile for a trajectory for the vehicle to follow into the future. The brake controller may determine whether to use one or both of regenerative and friction braking based on the braking profile. The vehicle is controlled according to the braking profile based on the determination of whether to use one or both of regenerative and friction braking.

A vehicle torque processing method, apparatus, and a vehicle controller are provided. The method includes allocating torque to the first power drive system and a second power drive system based on required torque, where a sum of first torque output by the first power drive system and second torque output by the second power drive system is equal to the required torque. At a current vehicle speed, if an intrinsic frequency of the first power drive system is a frequency in a resonance frequency range corresponding to the first power drive system, based on the required torque and peak torque of the second power drive system, the torque output by the first power drive system and the torque output by the second power drive system are adjusted.

A control unit generates pulse width modulation (PWM) pulses for an inverter. The control unit has a noise reducer configured to generate an opposing signal for active noise reduction. The noise reducer is configured to set a phase angle of the opposing signal based upon a predefined PWM frequency.

A driving torque command generating apparatus of a vehicle may include: a driving input sensor configured to detect a driving input value of a driver, including a pedal input value, in response to a manipulation of an accelerator pedal of the vehicle; a motor speed sensor configured to detect a motor speed of a drive motor of the vehicle; a wheel speed sensor configured to detect a wheel speed of a wheel of the vehicle; and a controller configured to obtain torsional state observation value information, which indicates a torsional state observation value derived from a vehicle drive system of the vehicle, according to the detected motor speed, the detected wheel speed, and a previously-generated motor torque command, and to generate a motor torque command based on the detected driving input value and the obtained torsional state observation value information.

A louver structure is provided that reduces noise propagated to a compartment of a vehicle. The louver structure includes: a cooling fan configured to cool a battery; a back wall configured to separate the cooling fan from a compartment and having an air inlet to communicate with the cooling fan; and a louver member attached to the back wall and covering the air inlet. The louver member is provided with a labyrinth structure.

A control device for a vehicle is provided with: two drive devices; a first speed reducer that transmits the torque of one drive device to an output shaft; and a second speed reducer that transmits the torque of the other drive device to the output shaft. The control device is provided with a torque control unit that controls, according to a target torque, the torque output by the two drive devices. The torque control unit includes a restriction unit that controls the torque output by the two drive devices when the sign of the target torque is changed from a first sign to a second sign. While outputting torque that reduces the backlash of the first speed reducer or the second speed reducer to one of the drive devices, the restriction unit outputs torque according to the target torque to the other drive device.

A vehicle system vibration suppression control device is provided for a vehicle system in which a vehicle is driven via an elastic shaft by a motor drive device having a torque control function. The vehicle system vibration suppression control device includes: a section containing an approximate model to which an output torque command is inputted; and a feedback control section. The feedback control section is configured to: employ the approximate model; calculate a motor-accelerating torque component by differentiating a measured speed component of a motor rotational speed; produce a compensation torque component by causing the motor-accelerating torque component to pass through a vibration suppression control filter; and calculate the output torque command by subtracting the compensation torque component from an input torque command. The vibration suppression control filter is expressed by a second order mathematical expression.

An energy storage system for a military vehicle includes a battery housing defining a lower end and an upper end, a battery disposed within the battery housing, a bracket coupled to the battery housing at or proximate the upper end thereof, a lower support supporting the lower end of the battery housing, and an upper connector extending from the bracket. The upper connector is configured to engage a rear wall of a cab of the military vehicle.