The invention proposes a single-engine, truck-mounted sweeper machine that incorporates systems and devices for an improved power pack mounting mechanism. A propeller shaft mounted at the side of the engine is used to take power from a driven pulley. At the rear end of the propeller shaft a suitable capacity power pack driving the sweeping system is attached. A clutch is introduced between the engine-driven pulley and the power pack, which may be coupled or decoupled as required instead of driving the power pack all the time. The power pack may be activated or deactivated for better component life and to conserve energy. In place of hydraulic pump an electric generator may be substituted. The overall advantage of the invention is that higher power could be provided for effective sweeping function in truck-mounted sweepers, without change in engine capacity or environmental concerns such as emissions.

A system for a power take-off mechanism for a powertrain system is provided. The system includes an electrically powered torque generating device including a torque generating device output shaft and a transmission output shaft receiving mechanical power from the torque generating device output shaft. The system further includes a clutch selectively disengaging the transmission output shaft from the torque generating device output shaft and a power take-off module receiving mechanical power from the torque generating device.

A compressed air system for a motor vehicle with an air supply system, including: an electric drive motor, which can be controlled for variable speed, an air compressor coupled to be driven by the electric drive motor, an electric power supply for supplying electric power to the electric drive motor, at least one air reservoir connected with the air compressor to receive air from the air compressor, an air utilization system connected to the at least one air reservoir to receive air from the at least one air reservoir, a controller to control the speed of the electric drive motor. The controller controls the electric drive motor to determine the speed of the electric drive motor so that during filling of the air reservoir, when the pressure level in the air reservoir passes a setpoint that is between a minimum level and a higher cut off pressure level, the controller changes the compressor speed so that specific power consumption per unit mass of air compressed is decreased.

Methods and systems are provided for an accessory drive device. In one example, the accessory drive device comprises an input belt coupled to a pulley of a two-speed device and an output pulley coupled to an output belt configured to provide energy to an alternator or a belt integrated starter generator.

Methods and systems are provided for an accessory drive device. In one example, the accessory drive device comprises an input belt coupled to a pulley of a two-speed device and an output pulley coupled to an output belt configured to provide energy to an alternator or a belt integrated starter generator.

An example system includes a motive application having a prime mover, a load, a driveline, and a motor/generator that couples to the driveline. The system includes a number of batteries, and a battery assembly that electrically couples the batteries to the motor/generator. The battery assembly includes a power interface positioned at a first end of the battery assembly, the power interface including a low voltage coupling and a high voltage coupling, and a service electrically interposed between the batteries and the power interface. The service disconnect in a first position couples at least one of the batteries to the first low voltage coupling and couples the batteries to the second high voltage coupling. The service disconnect in a second position de-couples the batteries from the low voltage coupling and the high voltage coupling.

Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.

A working device connected to a traveling vehicle having a prime mover and configured to perform an agricultural work, includes: a working portion to perform an agricultural work; an electric motor to be driven by electric power; a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; a regeneration resistor to consume a regenerative power generated in the electric motor; a switch portion to switch, between a connecting state and a shut-off state, a state established between the electric motor and the regeneration resistor; and a controller portion to control driving of the electric motor and switching of the switch portion.

A fire apparatus includes a chassis, a cab coupled to the chassis, a pump system coupled to the chassis and positioned at least partially behind the cab, and a driveline. The pump system includes a pump. The driveline includes a prime mover positioned beneath the cab and coupled to the chassis, a transmission, and a sandwiched power take-off unit positioned between (a) the prime mover and (b) the transmission and the pump system. The sandwiched power take-off unit facilitates operating the pump independent of a gear selection of the transmission and a ground speed of the fire apparatus.

Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.