A system and a method for preventing instability of a vehicle due to regenerative braking of a rear, may include a first controller configured of distributing braking torque of front and rear wheels for a deceleration level according to a basic regenerative braking distribution ratio on a regenerative brake map on the basis of a driver demand braking amount, and configured of previously reducing a rear-wheel regenerative braking torque of the rear wheel to a first reference value or less than the first reference value in an adjustment section between first and second deceleration; and a second controller connected to the first controller and configured of further reducing the rear-wheel regenerative braking torque to transmit it to the first controller, if a wheel slip value is greater than a reference slip value according to vehicle driving information during braking of the vehicle.

A vehicle includes driven wheels, an actuator operably coupled to the driven wheels by a drivetrain, and a braking system having friction brakes associated with the driven wheels. A controller is programmed to, in response to the vehicle being in a drift mode, decouple the driven wheels from the actuator, engage the friction brakes to lockup the driven wheels, and place the actuator in speed control and command a torque to the actuator based on a difference between a measured speed of the actuator and a target speed of the actuator.

A traction control system for a vehicle having a first wheel driven by a first electric motor including a first set of coil windings, the system comprising a first controller arranged to control current in the coil windings for generating a drive torque for driving the first wheel, and a second controller arranged to determine a maximum wheel velocity based on a first slip ratio value for the first wheel and the vehicle velocity and a minimum wheel velocity based on a second slip ratio value for the first wheel and the vehicle velocity. The second controller communicates to the first controller the maximum and minimum values and a torque demand value corresponding to a drive torque for driving the first wheel. The first controller controls current in the coil windings to generate a drive torque based on the maximum and minimum wheel velocity and torque demand values from the second controller.

Provided is a control apparatus, a control method, and a control system for an electric vehicle that can prevent or reduce an unnecessary torque fluctuation on a wheel not targeted for slip control. A control apparatus for an electric vehicle limits a torque to be output to a non-target wheel according to a torque output to a target wheel after target wheel slip control is started, and updates a limit value of the torque to be output to the non-target wheel when a fluctuation range of the torque output to the target wheel falls within a predetermined range during the limitation.

According to an embodiment of the present disclosure, a driving force control apparatus for a vehicle includes: a front-wheel driver; a rear-wheel driver; a wheel speed detector; a wheel vibration calculator; an estimated speed calculator that calculates an estimated vehicle speed of the vehicle; a slip-rate calculator that calculates a slip rate of each wheel; and a driving controller that reduces a driving force of the front wheel driver or the rear wheel driver when a slip rate of each wheel is greater than a preset slip rate value. The estimated speed calculator determines that the estimated vehicle speed is greater than an actual speed of the vehicle when the vibration value calculated by the wheel vibration calculator is greater than a preset vibration value.

A vehicle controller for avoiding a collision of a vehicle and a method thereof are provided. The vehicle controller includes a drive motor that supplies electric power for a behavior of a vehicle, sensors that obtain information outside the vehicle and information inside the vehicle, and a controller that estimates, when detecting evasive steering of a driver in a collision situation based on the information outside the vehicle and the information inside the vehicle, a front wheel slip angle and a rear wheel slip angle, and controls the drive motor based on the front wheel slip angle and the rear wheel slip angle.

Method for determining predicted acceleration information which describes a future acceleration potential of an electric vehicle having an electric motor as the drive device, which is supplied with electric power from a battery in the electric vehicle, this method including the following steps: —Supplying power predictive information of the electric motor, which describes the predicted available acceleration power of the electric motor for at least one future period of time, —Determining the acceleration information from the power predictive information by using a vehicle model which supplies the prevailing operating state of the electric vehicle, at least one vehicle parameter describing the acceleration possible on the basis of the acceleration power and/or using predictive path data supplied in particular by a navigation system for the period of time.

An electric motor controller adapted to provide anti-lock braking of an electric traction motor for an electric vehicle is disclosed herein. The electric motor controller comprises a torque demand input for receiving a torque demand input signal based on a request from an operator of the electric vehicle and a torque demand adjuster adapted to adjust the torque demand input signal and to provide an adjusted torque demand signal. The torque demand adjuster is configured to adjust the torque demand signal such that the motor is controlled to reduce the difference between a motor speed and an estimated speed of the electric vehicle.

A mobility device that can accommodate speed sensitive steering, adaptive speed control, a wide weight range of users, an abrupt change in weight, traction control, active stabilization that can affect the acceleration range of the mobility device and minimize back falls, and enhanced redundancy that can affect the reliability and safety of the mobility device.

A vehicle includes: a plurality of wheels; a motor for providing a driving force to the plurality of wheels based on electrical energy stored in a battery; a modulator for controlling a number of rotations of the motor; and a controller for controlling the modulator based on a first control value at a coasting control and controlling the modulator based on a second control value when a wheel slip occurs in a safety control.