ELECTRIC HYBRID TRANSMISSION ARCHITECTURE FOR A WORK VEHICLE

    公开(公告)号:US20220176802A1

    公开(公告)日:2022-06-09

    申请号:US17432043

    申请日:2020-02-17

    摘要: An electric hybrid transmission architecture for a work vehicle includes a first and a second electric motor, each of which is electrically connected to a source of electric power. The first electric motor is configured to provide a torque to a first input shaft by converting electric power received from the source of electric power. The second electric motor is configured to provide a torque to a second input shaft by converting electric power received from the source of electric power. The electric hybrid transmission architecture also includes an output shaft which is mechanically connected to at least one of the first and second input shafts by means of controllable engaging means. The source of electric power is a generator carried by an internal combustion engine of the work vehicle.

    HYDRAULIC BRAKING ARRANGEMENT FOR OFF-ROAD VEHICLES

    公开(公告)号:US20220055590A1

    公开(公告)日:2022-02-24

    申请号:US17413884

    申请日:2019-12-13

    IPC分类号: B60T13/14 B60T13/64

    摘要: A hydraulic braking arrangement for controlling front and rear brakes of an off-road vehicle, includes a power brake valve fluidly interposed between rear brakes and a first source of fluid in pressure of vehicle. The power brake valve is configured to selectively allow passage of fluid coming from first source to rear brakes. The power brake valve is further configured to provide at least a hydraulic signal configured to control a relay valve fluidly interposed between front brakes and a second source of fluid in pressure of the vehicle and being configured to selectively allow passage of fluid coming from second source to front brakes in function of the at least one hydraulic signal.

    SPECIALTY TRACTOR
    4.
    发明申请

    公开(公告)号:US20220009336A1

    公开(公告)日:2022-01-13

    申请号:US17296177

    申请日:2019-11-19

    摘要: Specialty tractor includes a diesel engine coupled with a powertrain including a clutch and a manual shift transmission having an output shaft that is designed to transmits power to the wheels of the tractor. An electric motor includes an output shaft connected through a power transmission to the output shaft of the manual shift transmission. The specialty tractor includes an electronic unit configured to perform at least a first operating mode and a second operating mode. In the first operating mode the clutch is opened and the manual transmission does not receive any torque from the diesel engine, and the electric motor transmits torque to the wheels the tractor. In the second operating mode the clutch is closed and the manual transmission receives torque from the diesel engine so that the engine-torque is transmitted to the wheels of the tractor that moves at a speed higher than the speed limit.

    HYBRID MULTI-MODE POWER TAKE OFF SYSTEM (PTO)

    公开(公告)号:US20210291806A1

    公开(公告)日:2021-09-23

    申请号:US17261830

    申请日:2019-06-26

    摘要: A hybrid multi-mode power take off system (PTO) installed on a vehicle includes an internal combustion engine, a first electric reversible electric machine, a second electric reversible electric machine and one epicyclical gear train connectable with the engine and the first and second reversible electrical machines by means of a number of clutches. An electronic control unit controls the closure/opening of clutches to implement different operating modes. The electronic control unit is configured to control the transfer of energy between the first and the second reversible electric machines when one reversible electric machine is operating as a motor and the other is operating as a generator.