A rough road escaping system for a vehicle having an electric-axle and a method thereof, may enable wheels respectively connected to first and second axle shafts to easily escape from a rough road by generating a recoiling force of the vehicle through motor torque control that alternately applies several time forward driving torque output from a first motor included in a rear wheel-first electric-axle to a first axle shaft and backward driving torque output from a second motor included in a rear wheel-second electronic-axle to a second axle shaft.

A vehicle control apparatus includes an inverter, a torque setting unit that sets a first torque command value of a traveling motor based on an accelerator operation amount, a torque correction unit that corrects the first torque command value to a second torque command value by performing feedback of the result of control of the traveling motor to the first torque command value, an inverter control unit that generates a drive signal of switching elements based on the second torque command value and a carrier signal, and a motor lock determination unit. When the traveling motor is determined to be in the motor lock state by the motor lock determination unit, the torque correction unit sets a feedback gain to be smaller than a threshold gain, and the inverter control unit sets the frequency of the carrier signal to be lower than a threshold frequency.

A vehicle braking system includes one or more traction motors and an electrical device configured to be electrically coupled with the one or more traction motors. The one or more traction motors are configured to propel a vehicle and to generate electric power during rollback of the vehicle down a grade. The electrical device is configured to consume the electric power generated from the rollback of the vehicle by performing work with the electric power during the rollback of the vehicle.

An apparatus and a method for controlling pitch reduction may include a sensor device that measures a wheel speed and a longitudinal acceleration of a vehicle, a pitch rate estimation device that performs pseudo-integral of a difference between a wheel acceleration determined from the wheel speed and the longitudinal acceleration to determine an estimation value of a pitch rate, and a pitch motion reduction controller that generates a control command for implementing a motor torque in which the determined estimation value of the pitch rate is reflected and transmits the control command to an electric motor of the vehicle.

A control method and system for preventing a vehicle from rolling backwards down a slope and a vehicle including a system are provided. The control method includes sensing the number of revolutions per minute (RPM) of a motor connected to a driving shaft of the vehicle and comparing the sensed RPM of the motor with a preset RPM to determine whether the vehicle begins to roll backwards. In response to determining that the vehicle begins to roll backwards, driving torque is applied to the motor to prevent the vehicle from rolling backwards.

An anti-jerk control method for an electric vehicle incorporates an anti-jerk function that can be performed more accurately and effectively by utilizing a real-time weight change of an electric vehicle. The anti-jerk control method includes: estimating vehicle weight by a controller based on vehicle driving information collected from a vehicle; determining a required torque command of a driver by the controller based on the vehicle driving information collected from the vehicle; determining anti-jerk torque according to the vehicle weight based on calculated speed deviation and the estimated vehicle weight information; and controlling a drive motor according to a compensated motor torque command by compensating the required torque command with the anti-jerk torque in the controller.

A system for providing a movement assistance to an electric cycle is provided. The system includes circuitry communicatively coupled to an electronically-actuated driving mechanism and a sensor system of the electric cycle. The circuitry receives sensor information associated with the electric cycle through the sensor system and determines an inclination of the electric cycle with respect to an inclination-reference based on the received sensor information. The circuitry further determines occupancy information associated with a seat of the electric cycle based on the received sensor information. Based on the determined inclination and the determined occupancy information, the circuitry controls the electronically-actuated driving mechanism to drive at least one wheel of the electric cycle.

An electric power assist system generates an appropriate level of assist power while an electric assist vehicle is running on a slope and includes an electric motor that generates an assist power to assist human power of a rider of the electric assist vehicle, a controller that controls a magnitude of the assist power to be generated by the electric motor, and an acceleration sensor that outputs an acceleration signal representing an acceleration in a travel direction of the electric assist vehicle. The controller acquires speed information representing a running speed of the electric assist vehicle based on an external signal, detects an inclination angle of a road surface based on the speed information and the acceleration signal, and causes the electric motor to generate an assist power of a magnitude in accordance with the inclination angle.

A control apparatus of an electric vehicle including a motor capable of outputting a vehicle driving force that is a driving force acting on the electric vehicle, and a brake device configured to generate a vehicle braking force that is a braking force acting on the electric vehicle in accordance with a brake operation performed by a driver, includes: a controller. The controller is configured to start a first hill-hold control for maintaining the electric vehicle in a stopped state by using the vehicle driving force generated by the motor as a stopping force for stopping the electric vehicle when the brake operation is interrupted.

A method includes controlling an electrified vehicle by automatically commanding an output torque from an electric machine if the electrified vehicle is in park and an engine start or stop request has been received. A road grade may be used to determine whether or not to command the output torque.