Methods and systems for operating an electric vehicle in neutral are provided herein. The vehicle system, in one example, includes an electric machine rotationally coupled to a driveline and an input device with a neutral position. The system further includes a control unit with instructions that when executed, in response to movement of the input device into the neutral position, cause the control unit to operate the electric machine to apply a regenerative torque to a driveline and generate electrical energy.

An electrified vehicle includes a controller programmed to implement performance mode control of first and second electric machines and wheel brakes associated with wheels of respective first and second axles to provide a braking force to a first axle while providing torque to the second axle to intentionally spin the tires of the second axle to provide a peelout and associated heating or smoking of the tires to improve traction and provide a visual display of power. The maneuver may be repeated for the first axle by providing torque to the first axle while applying braking force to the second axle. A sequential maneuver that spins tires of the first axle followed by tires of the second axle may be performed by specified manipulation of the brake pedal and accelerator pedal.

A vehicle including an electric motor has improved operating performance of a brake lamp using regenerative braking. A method of controlling a brake lamp of the vehicle includes determining a tendency of a driver, calculating a corrected mass based on the determined tendency of the driver, and calculating corrected acceleration based on the corrected mass and regenerative braking torque of the electric motor. An on threshold is corrected based on a difference between a requested torque and the regenerative braking torque at a time at which an accelerator pedal is released, and the brake lamp is turned on based on the corrected on threshold and the corrected acceleration.

Embodiments of the present invention provide an electric machine control system for a vehicle, the electric machine control system comprising one or more controllers, wherein the vehicle comprises an electric machine arranged to be selectively coupleable to provide torque to at least one wheel of an axle of the vehicle, the control system comprising input means to receive (1110) a fault-derived coupling state request (430) signal and (1120) at least one further coupling state request signal, wherein each coupling state request signal is indicative of a request for a coupling state of the electric machine to the at least one wheel of the axle, processing means arranged to determine (1130) the coupling state of the electric machine to the at least one wheel of the axle in dependence on the fault-derived coupling state request signal (430) and the at least one further coupling state request signal, wherein the processing means is arranged to determine the coupling state of the electric machine in precedence on the fault-derived coupling state request signal over the at least one further coupling state request signal, and output means arranged to output (1140) a coupling signal indicative of the determined coupling state to control coupling of the electric machine to the at least one wheel of the axle.

An apparatus for controlling operation of an electric vehicle of the present invention may comprise: an operation information collection unit that collects parameters for operation of an electric vehicle; a battery information collection unit that collects information on battery operation and condition; a manipulation information collection unit that collects manipulation information of a driver on the electric vehicle; a motor control means for driving a driving motor of the electric vehicle according to the collected manipulation information from the driver; and a derating adjustment unit that performs derating for reducing a ratio of an amount of power of the driving motor to a throttle angle, according to the collected information.

A vehicle control apparatus includes a generator, a brake system, first and second sensors, first and second deceleration rate setting units, and a power generation torque controller. The first deceleration rate setting unit sets, when a first control mode that decelerates a vehicle on the basis of a brake operation performed by an occupant is executed, an allowable deceleration rate upon deceleration of the vehicle on the basis of a brake operation amount. The second deceleration rate setting unit sets, when a second control mode that decelerates the vehicle on the basis of a situation ahead of the vehicle is executed, the allowable deceleration rate upon deceleration of the vehicle on the basis of a brake fluid pressure. The power generation torque controller controls power generation torque of the generator on the basis of the allowable deceleration rate that is set by the first or second deceleration rate setting unit.

A regenerative braking torque control system of an electric vehicle, includes a travel information setting section selects a regenerative braking level in response to a driver’s input and setting at least one driving mode among a plurality of driving modes, an in-vehicle information detector which detects in-vehicle information corresponding to a number and in-vehicle positions of occupants seated on vehicle seats, and a controller which allows driving to be performed according to the regenerative braking level selected by the travel information setting section, the controller transferring motor torque responsiveness according to the number and the in-vehicle positions of the occupants detected by the in-vehicle information detector to a motor controller for driving the vehicle by reflecting the motor torque responsiveness on regenerative braking torque.

An electrical machine comprising: at least one stator, at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, an integrated electrical differential coupled to at least one of the rotors, the at least one integrated electrical differential permitting the at least one rotor to output at least two rotational outputs to corresponding shafts, wherein the at least two rotational outputs are able to move the shafts at different rotational velocities to one another. The electrical machine is configured to fit into a housing, and that can be retrofitted into a conventional vehicle by replacing the mechanical differential.

To provide a technique for reliably acquiring a required braking power during travel and for efficiently using a regenerative power generated during braking. A work vehicle calculates a regenerative power outputted from an electric motor and a target hydraulic driving power for driving a hydraulic pump, supplies the regenerative power to the generator motor operating as a motor and makes the generator motor consume the regenerative power in a case where the regenerative power is equal to or smaller than the target hydraulic driving power, and supplies the regenerative power to the generator motor operating as the motor and makes an exhaust brake consume a power equivalent to a difference between the regenerative power and the target hydraulic driving power in a case where the regenerative power is larger than the target hydraulic driving power.

A braking capacity decrease determining device including a brake ECU is applied to a vehicle including wheel speed sensors and a brake device. The brake ECU performs a first determination process of determining whether a temporary braking decrease determination condition is satisfied for each of a plurality of wheels provided on the vehicle. The brake ECU additionally performs a second determination process of determining whether there are both a wheel for which the temporary braking decrease determination condition is satisfied and a wheel for which the temporary braking decrease determination condition is not satisfied out of the plurality of wheels and determining that a braking capacity of the brake device has decreased when it is determined that there are both a wheel for which the temporary braking decrease determination condition is satisfied and a wheel for which the temporary braking decrease determination condition is not satisfied.