A method and a system are described for controlling power dissipation in an electric drive system for a hybrid electrical vehicle including determining the stator current of an electrical machine providing a maximum achievable power dissipation in the electrical drive system and determining a maximum available braking torque of an electrical machine.

An apparatus for preventing overcharge of a battery in an eco-vehicle includes: a detector detecting the overcharge of the battery; and a signal processor controlling a high voltage relay according to an output signal output from the detector to block a charge of the battery.

A first electric power generation device configured to produce an accessory voltage according to a first instruction voltage. A second electric power generation device configured to produce the accessory voltage according to a second instruction. An electric control unit is configured to execute crank position stop control for stopping a crank of the engine at a target position when the engine is stopped by controlling the first electric power generation device such that a current is circulated in the first electric power generation device and the rotating electric machine generates braking torque. The electric control unit is configured to execute the crank position stop control in a state in which the second instruction voltage is equal to or higher than the first instruction voltage.

The present disclosure provides an electronic stability control method for a vehicle for performing vehicular electronic stability control simply by adjusting driving force and braking power that are generated by a driving device of the vehicle without use of a driving force distributing method between front, rear, left, or right vehicle wheels. To this end, the vehicular electronic stability control method includes determining a vehicular state value indicating a driving state of a vehicle from information collected from the vehicle, comparing the determined vehicle state value with a first reference value, and controlling an operation of a driving device for generating driving force for driving the vehicle by the controller when the vehicle state value is greater than the first reference value to adjust driving force for preventing understeer or oversteer of the vehicle.

A through the road (TTR) hybridization strategy is proposed to facilitate introduction of hybrid electric vehicle technology in a significant portion of current and expected trucking fleets. In some cases, the technologies can be retrofitted onto an existing vehicle (e.g., a truck, a tractor unit, a trailer, a tractor-trailer configuration, at a tandem, etc.). In some cases, the technologies can be built into new vehicles. In some cases, one vehicle may be built or retrofitted to operate in tandem with another and provide the hybridization benefits contemplated herein. By supplementing motive forces delivered through a primary drivetrain and fuel-fed engine with supplemental torque delivered at one or more electrically-powered drive axles, improvements in overall fuel efficiency and performance may be delivered, typically without significant redesign of existing components and systems that have been proven in the trucking industry.

A vehicle controller includes a controlling unit. The controlling unit calculates a feedback control amount based on a deviation between a target acceleration of a vehicle and an actual acceleration of the vehicle. The controlling unit executes a feedback control of a driving device and a braking device by using the feedback control amount, such that the deviation decreases. A state in which only the driving device, of the driving device and the braking device, operates is a first state. A state in which at least the braking device, of the driving device and the braking device, operates is a second state. When switched from the first state to the second state, the controlling unit calculates the feedback control amount such that the deviation permitted in the feedback control is greater than the deviation prior to a start of switching from the first state to the second state.

A method of controlling an electrified vehicle to prevent a collision thereof includes: determining whether an accelerator pedal is erroneously operated in the situation in which an obstacle is detected to be present in a traveling path; and when it is determined that the accelerator pedal is erroneously operated, performing braking control such that at least one of hydraulic braking or regenerative braking is selectively performed in a plurality of braking sections determined based on a current vehicle speed and a distance to the obstacle.

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.

An apparatus for controlling operation of a walk-behind electric lawn mower equipped with an electric motor, a blade cutter connected to the electric motor and a rechargeable battery mounted connected to the electric motor and a motor driver circuit. In the apparatus, when an instruction to stop the electric motor is inputted, the operation of the motor driver circuit is controlled to output regenerative electric current from three-phase coils of the electric motor. At that time, it is determined whether a rotational speed of the electric motor is equal to or less than a switching rotational speed and when it is, the motor driver circuit is controlled to switch from the regenerative braking to short-circuit braking that short-circuits the three-phase coils of the electric motor.

A utility vehicle with regenerative braking is disclosed. The utility vehicle includes a power bus, a battery coupled to the system power bus, and at least one electric drive motor to generate power through regenerative braking and supply the generated power onto the power bus. The utility vehicle includes a power regulation controller configured to direct the generated power to the battery to recharge the battery when the battery is not fully charged, direct the generated power to at least one power sink to consume the generated power when the battery is fully charged and the generated power is less than or equal to a power consumption limit, and reduce a maximum travel speed to reduce an amount of power generated by the at least one electric drive motor through regenerative braking when the battery is fully charged and the generated power is greater than the power consumption limit.