The driving range of an electrically powered motor vehicle can be extended by employing a plurality of different types of regenerative power devices on the vehicle for producing electricity and collecting the power generated by each in an efficient module having both DC to DC step up and DC to DC step down converters that output the collected power at a predetermined voltage for selectively providing power to the vehicle's storage battery system or directly to a vehicle accessory.

An inverter device for providing a drive voltage for a drive motor (110) for an electric vehicle (100). The inverter device (108) has a battery interface (130) for connecting the inverter device (108) to a vehicle battery (104) of the electric vehicle (100), a drive interface (116) for connecting the inverter device (108) to the drive motor (110), and an auxiliary interface (118) for connecting the inverter device (108) to an auxiliary drive (112). The inverter device (108) further has an inverter (140) to convert a DC voltage applied to the battery interface (130) into an AC voltage and to provide the latter either at the drive interface (116) or at the auxiliary interface (118) using a control signal (132).

Systems and methods are disclosed herein for automatically planning the workday of a battery unit powered electric work vehicle. The vehicle includes a chassis supported by traveling devices, itself further supporting a work implement. A battery unit discharges energy for at least assisting with actuation of the traveling devices and/or work implement. A controller receives input data from a user regarding specified missions to be performed by the work vehicle in a given period of time, and predicts rates of energy consumption for at least one operating mode corresponding to each remaining mission to be performed. The controller further generates, to a user interface, output data corresponding to a required charge state of the battery unit based on the predicted rates of energy consumption, relative to a detected current charge state of the battery unit. The controller may monitor activity and/or consumption rates throughout the day and proactively generate outputs for, e.g., usage optimization.

A transportation refrigeration system including: a transportation refrigeration unit; an energy storage device configured to provide electrical power to the transportation refrigeration unit; an electric generation device operably connected to at least one of a wheel and a wheel axle of the transport refrigeration system, the electric generation device being configured to generate electrical power from at least one of the wheel and the wheel axle to charge the energy storage device when the electric generation device is activated; a rotational velocity sensor configured to detect a rotational velocity of the electric generation device; and a power management module in electrical communication with the energy storage device, the electric generation device, and the rotational velocity sensor, wherein the power management module is configured to decrease a torque limit of the electric generation device when the rotational velocity of the electric generation device decelerates greater than a selected deceleration.

An electrified drivetrain for a vehicle includes a first electric machine, a second electric machine, a clutch, an HVAC compressor, and a controller. The second electric machine is rotatably coupled to a geartrain, the first electric machine is rotatably coupled to the HVAC compressor, and is rotatably couplable to the geartrain via the clutch, and the clutch is operative in a first state and a second state. The first electric machine is rotatably coupled to the geartrain when the clutch is controlled to the first state, and is decoupled from the geartrain when the clutch is controlled to the second state. The controller is operatively connected to the first and second electric machines, the clutch, and the HVAC compressor to control operation of the electrified drivetrain. The first electric machine can be used as a heater element and to provide mechanical power to the drivetrain.

A control target for a control device (3) is a vehicle drive device (1) having an automatic transmission (2) and an oil pump (OP) for driving the automatic transmission (2) which are provided in a power transmission path connecting a rotating electrical machine (MG) to a wheel (W1), the oil pump (OP) rotating at rotational speed determined based on wheel speed which is rotational speed of the wheel (W1). The control device (3) performs regeneration by the rotating electrical machine (MG) during transmission operation of the automatic transmission (2).

An energy recovery drive system includes a motor-generator that is structured to selectively operate in a motor mode and a generator mode. A first shaft is operatively coupled to a transmission power take-off shaft. A second shaft is operatively coupled to the motor-generator and to an alternative power source. The energy recovery drive system is controllably operated in a plurality of operating modes. In a first operating mode, the motor-generator is in torque providing engagement with each of the first and second shafts. In a second operating mode, the motor-generator is in torque communicating engagement with each of the first and second shafts. In a third operating mode, which the motor-generator is in torque communicating engagement with the second shaft and is disengaged from transferring torque to the first shaft and from receiving torque from the first shaft.

An apparatus includes a first inverter circuit and a second inverter circuit. The first invertor circuit is configured to couple an alternator and a load device to deliver a driving signal from the alternator to the load device. The second invertor circuit is configured to couple the alternator to the load device to deliver a driving signal from the alternator to the load device and configured to couple a battery to the alternator to deliver a charging signal from the alternator the battery

An HCU (37) includes a battery low temperature reducing output calculating section (71A) that determines, when it is determined that an electricity storage device (31) is in a low temperature state by a battery temperature Tb, a battery low temperature reducing output PbL that is made to a larger value as the battery temperature Tb is lower, a hydraulic oil low temperature reducing output calculating section (71B) that determines, when it is determined that hydraulic oil is in a low temperature state by a hydraulic oil temperature To, a hydraulic oil low temperature reducing output PoL that is made to a larger value as the hydraulic oil temperature To is lower, and an output command calculating section (80) that controls a vehicle body operation based upon a sum of the battery low temperature reducing output PbL and the hydraulic oil low temperature reducing output PoL.

A power-supply and recharge group for an electric vehicle comprising: a first battery pack; a second battery pack; a first DC-to-DC converter; a second DC-to-DC converter; a low-voltage power-supply source; and a control unit configured to: detect a charge difference between a first and a second battery pack; transfer an electric current from a low-voltage power-supply source to the one of the first and second battery pack having a lower charge, until said charge difference is cancelled; connect the first and the second battery pack to one another in series and recharge them by means of a recharge station on the outside of the vehicle. A direct connection between the DC-to-DC converters can replace the auxiliary low-voltage source.