A system with a control unit for a utility vehicle includes a data port configured to receive an acceleration request signal indicating a request for an acceleration change of at least one driven axle of the utility vehicle. The control unit further includes a controller configured to produce drive control signals for an electric drive of the driven axle depending on the acceleration request signal, and brake control signals for a friction brake system of the driven axle depending on the acceleration request signal.

A motor vehicle control system (210C, 220) for controlling an electric propulsion motor (230) to drive a wheel (290) of the vehicle (200), the control system (210C, 220) being configured to operate in one of a first mode and a second mode in dependence at least in part on an amount of slip experienced by at least one driven wheel (290), in the first mode the control system (210C, 220) being configured to cause the at least one electric propulsion motor (230) to generate a predetermined amount of drive torque, in the second mode the control system (210C, 220) being configured to cause the at least one electric propulsion motor (230) to rotate at a predetermined speed, wherein the control system (210C, 220) is configured to operate in the first mode if the amount of slip experienced by the at least one driven wheel (290) is below a predetermined slip amount and to operate in the second mode if the amount of slip experienced by the at least one driven wheel (290) exceeds the predetermined slip amount.

A brake force control apparatus allocates all of required brake force to a target front wheel friction brake force when the required brake force is equal to or smaller than a maximum regeneration brake force. The apparatus decreases the target regeneration brake force by a first predetermined amount at a first time point at which a front wheel acceleration varies from a value larger than a first acceleration threshold to a value equal to or smaller than the first acceleration threshold. The apparatus increases the target regeneration brake force in such a manner that the target regeneration brake force coincides with the required brake force, if the front wheel acceleration becomes larger than a second acceleration threshold in a period from the first time point to a second time point at which a predetermined time elapses from the first time point.

A system for controlling torque of a vehicle, such as an eco-friendly vehicle, can improve steering control performance. The system includes a first controller configured to change coast regeneration torque of the vehicle according to whether wheel lock of the vehicle has occurred and whether the vehicle is steerable.

A vehicle includes a pair of electric machines each coupled to a laterally-opposing wheel to output a wheel torque. The vehicle also includes a controller programmed to command a combined regenerative braking torque output of the electric machines based on a lesser of a braking torque limit of each individual electric machine. The controller is also programmed to command a regenerative braking torque from each electric machine to be within a predetermined torque threshold of each other in response to a yaw rate exceeding a yaw threshold.

A control device of an electric vehicle includes: a target rotation speed calculation unit that calculates a target rotation speed of a drive wheel based on a vehicle body speed; and a slip control unit that detects a slip of the drive wheel when a wheel speed exceeds the target rotation speed of the drive wheel and that controls motor torque of the motor in such a manner that the wheel speed becomes an appropriate rotation speed in detection of the slip. Further, the slip control unit controls the motor torque by feedback control according to a difference between the rotation speed of the motor and the target rotation speed of the drive wheel in detection of the slip.

Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is allocated to vehicle axles responsive to wheel torques of respective vehicle axles in response to an anti-lock braking system being activated. Additionally, friction braking torque is allocated to vehicle axles responsive to the anti-lock braking system being activated.

A vehicle includes an electric machine, friction brakes, and a controller. The electric machine is configured to recharge a battery during regenerative braking. The friction brakes are configured to apply torque to wheels of the vehicle to decelerate the vehicle. The controller is programmed to, responsive to an anti-lock braking event, adjust a regenerative braking torque of the electric machine based on a difference between a desired wheel slip ratio and an actual wheel slip ratio.

A method, apparatus, and system are disclosed for incrementally derating a torque applied by a drivetrain in response a number of traction control events detected by a traction control system over a predetermined time period.

A control apparatus for a vehicle includes an addition portion that outputs a post-compensation driver request torque, which is acquired by adding a driving torque (a loss compensation driving torque) lost due to a braking torque provided to a wheel on a low- road surface side according to a BLSD request hydraulic pressure calculated by a BLSD request hydraulic pressure calculation processing portion to a driver request torque calculated by a driver request torque calculation processing portion, to a motor.